Belt traction type high-precision dust-free cutting machine

Abstract

The invention belongs to the field of cutting machine tools, and provides a belt traction type high-precision dust-free cutting machine which comprises a machine box, a cutting bin, a discharging port, a traction bin and a feeding port, a belt traction device is arranged in the traction bin and comprises an upper belt conveyor, a lower belt conveyor and a conveying gap, and the conveying gap inclines by 1-3 degrees to face the feeding port. The lower belt conveyor comprises two transmission tooth rollers located at the two ends of the lower belt conveyor, a height adjusting tooth roller and a tensioning tooth roller, the transmission tooth rollers, the height adjusting tooth roller and the tensioning tooth roller are in meshing transmission through a synchronous belt, and a multifunctional conveying device connected with the feeding port is arranged on the outer side of the feeding port. The multifunctional conveying device is hinged to the case, a lifting supporting device is arranged at the other end of the multifunctional conveying device, and the multifunctional conveying device has a plate conveying mode and a pipe conveying mode. The device is reasonable in design, beneficial for improving conveying precision, beneficial for prolonging the actual service life of the belt, high in comprehensive utilization rate and suitable for large-scale popularization.

Description

Technical Field

[0001] The invention belongs to the field of cutting machine tools, and in particular relates to a belt-pulling high-precision dust-free cutting machine. Background Art

[0002] The belt conveyor in the belt-traction cutting machine is an important component, which transports materials through the continuous movement of the belt. For example, on a pipe production line, the belt traction machine will continuously and automatically lead the pipe that has been extruded and cooled by the extruder out of the head, and then the cutting machine will cut it according to the set length; for example, on a plate production line, the belt traction machine will pull the entire plate to the cutting machine, and the cutting machine will complete the slitting of the entire plate. The application of the belt traction method in the cutting machine has many advantages, such as being able to adapt to a variety of materials, including plates and coils of various shapes, sizes and materials, and being able to ensure the stability of the cutting process and the cutting accuracy; for equipment with a negative pressure dust suction device installed on the cutting head, the cutting machine also has the advantage of dust-free cutting.

[0003] Although the existing belt-traction cutting machines can be used for different types of materials, most of the single belt-traction devices can only traction one type of material after installation, otherwise it will affect the stability of transmission. For example, a cutting machine traction device disclosed in CN212886271U is only applicable to pipe fittings, and another example is a belt-traction precision cutting machine disclosed in CN210819779U is also only applicable to pipe fittings, and an automatic plate cutting device disclosed in CN111452105A is only applicable to plates, which will lead to a decrease in the utilization rate of the equipment. For workshops with small production scales and many types of products, it will also increase the number of vehicles. The comprehensive investment cost in time; secondly, there are still some problems with the belt traction device during the traction process. For example, most belt traction machines adopt horizontal transmission. For example, the belt traction precision cutting machine disclosed in CN210819779U will slip for a distance for the newly fed material. Although it will enter a stable transmission state as the feeding length increases, it will directly affect the actual service life of the belt, and if it works for a long time in this state, it will also affect the tightness of the belt. In addition, most of them use non-toothed transmission belts, which will affect the transmission accuracy of the material to the cutting head. Summary of the invention

[0004] In view of the technical problems existing in the above-mentioned belt-traction cutting machine, the present invention proposes a belt-traction high-precision dust-free cutting machine which has a reasonable design, is beneficial to improving transmission accuracy, is beneficial to extending the actual service life of the belt and has a high comprehensive utilization rate.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is that a belt-pulling high-precision dust-free cutting machine provided by the present invention comprises a chassis, a partition is arranged inside the chassis and near the middle thereof, one side of the partition is a cutting bin, one side of the cutting bin is arranged with a discharge port, the other side of the partition is a traction bin, the traction bin is arranged with a feed port at a position opposite to the discharge port, a belt traction device is arranged in the traction bin, the belt traction device comprises an upper belt conveyor and a lower belt conveyor, a transmission gap for conveying materials is formed between the upper belt conveyor and the lower belt conveyor, the transmission gap is inclined at 1°-3° toward the feed port, the lower belt conveyor comprises two transmission gear rollers located at both ends thereof and are respectively a front transmission gear roller and a rear transmission gear roller. A gear roller and a rear transmission gear roller, a height adjustment gear roller and a tensioning gear roller are respectively arranged above and below the center lines of the two transmission gear rollers, the transmission gear roller, the height adjustment gear roller and the tensioning gear roller are meshed and driven by a synchronous belt, a multifunctional conveying device connected to the outer side of the feed port is arranged, the conveying direction of the multifunctional conveying device is the same as the inclination direction of the conveying gap, one end of the multifunctional conveying device is hinged to the chassis, and the other end of the multifunctional conveying device is provided with a lifting support device, the multifunctional conveying device has a plate conveying mode and a pipe conveying mode, the multifunctional conveying device includes at least three roller group components distributed side by side, and the roller group components can switch between the plate conveying mode and the pipe conveying mode by adjusting the rotation angle.

[0006] Preferably, the multifunctional conveying device includes two relatively distributed end plates, one of which is provided with a fixed hinge, and the bottom of the other end plate is provided with a movable hinge hinged to the lifting support device, the end plate is provided with a plurality of adjustment ports corresponding to the roller group components one by one, the plurality of adjustment ports include at least two side ports distributed in an inverted V shape and an intermediate port distributed between the side ports, a dividing plate is provided in the adjustment port, the dividing plate is axially connected to the end of the roller group component, the dividing plate is provided with a dividing hole, the adjustment port is provided with a plurality of positioning holes corresponding to the dividing holes, and the dividing holes and the positioning holes are connected by positioning pins.

[0007] Preferably, the roller group component includes two hexagonal end heads, 8 mounting plates are arranged between the two end heads, the 8 mounting plates are distributed in 4 pairs and are respectively arranged on the top edge, bottom edge and two side edges of the end heads, and a number of rolling rollers are arranged between each pair of mounting plates and are spaced apart along the length direction thereof. A support shaft is arranged at the center of the end head, and the axial end of the support shaft passes through the adjustment hole and cooperates with the dividing plate.

[0008] Preferably, a plurality of reinforcing plates are arranged between the end heads and are distributed at intervals and connected to the mounting plate. The reinforcing plates are hexagonal in structure and a through hole is arranged at the center thereof.

[0009] Preferably, the length of the top side of the end is greater than the length of the bottom side, and the length of two side sides of the end adjacent to the top side is less than the length of two side sides connected to the bottom side.

[0010] Preferably, a limiting roller for limiting the edge of the plate is provided on the side of the end head.

[0011] Preferably, the upper belt conveyor includes two driven rollers, namely a front driven roller and a rear driven roller. An active roller is arranged between the front driven roller and the rear driven roller. The active roller and the driven roller are matched through the upper belt transmission. A first reduction motor is arranged at one end of the active roller. A lifting and adjusting device for adjusting the transmission gap is arranged at both ends of the active roller. Angle adjustment cylinders are arranged at both ends of the rear driven roller. The top of the angle adjustment cylinder is hinged to the chassis.

[0012] Preferably, the roller diameter of the active roller is larger than the roller diameter of the driven roller, the active roller is distributed close to the front driven roller, the height-adjusting gear roller is distributed close to the rear transmission gear roller, the portion of the upper belt that is in transmission cooperation between the active roller and the front driven roller is a braking surface, the portion of the upper belt that is in transmission cooperation between the active roller and the rear driven roller is an upper surface of the transmission gap, and the portion of the synchronous belt that is in transmission cooperation between the height-adjusting gear roller and the front transmission gear roller bracket is a lower surface of the transmission gap.

[0013] Preferably, the lifting and adjusting device includes a cantilever beam, a light hole is provided at the bottom end of the cantilever beam for rotationally cooperating with the roller end of the active roller, a connecting plate is provided on the side of the cantilever beam, a skateboard rail mechanism is provided on the partition plate and connected to the connecting plate by bolts, a fixed seat is provided on the top of the skateboard rail mechanism, a screw rod connected to the top of the cantilever beam is provided in the middle of the fixed seat, and a handwheel is provided on the top of the screw rod for rotationally cooperating with the screw rod.

[0014] Preferably, a cross slide is provided in the cutting chamber, the cross slide has vertical and horizontal movement functions and a cutting working head is provided at its moving end, a dust suction pipe is provided on the cutting working head, and the negative pressure end of the dust suction pipe is connected to the negative pressure device arranged on the outside of the chassis through a pipe.

[0015] Compared with the prior art, the advantages and positive effects of the present invention are:

[0016] The present invention provides a belt-pulling high-precision dust-free cutting machine, in which the transmission gap of the belt-pulling device is in an inclined direction, and a part of the inertia and gravity of the material can be utilized during the friction transmission process of the upper belt conveyor and the lower belt conveyor. In addition, the lower belt conveyor adopts a synchronous belt for transmission, which can reduce the probability of long-distance slippage, improve the accuracy of material transmission, and thus ensure the cutting quality in the cutting chamber; the multifunctional transmission device can switch between the plate transmission mode and the pipe transmission mode, and is used for feeding and transmission operations of different materials in the workshop. The device is reasonably designed, conducive to improving transmission accuracy, conducive to extending the actual service life of the belt, and has a high comprehensive utilization rate, and is suitable for large-scale promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 A three-dimensional diagram of a belt-pulling high-precision dust-free cutting machine provided in an embodiment;

[0019] Figure 2 A right side view of a belt-pulling high-precision dust-free cutting machine provided in an embodiment;

[0020] Figure 3 It is a cross-sectional view of a belt-pulling high-precision dust-free cutting machine (without a multi-functional transmission device and a lifting support device) in the GG direction;

[0021] Figure 4 A three-dimensional diagram of a belt-pulling high-precision dust-free cutting machine provided in an embodiment in another direction;

[0022] Figure 5 A left view of a belt-pulling high-precision dust-free cutting machine provided in an embodiment;

[0023] Figure 6 A right side view of the multifunctional conveying device provided in the embodiment;

[0024] Figure 7 It is a schematic diagram of the distribution of the three roller group components;

[0025] Figure 8 A cross-sectional view of a roller assembly component provided for an embodiment;

[0026] Fig. 9 An axonometric view of a roller assembly component provided for an embodiment;

[0027] Fig.10 for Figure 3 A magnified schematic diagram of the structure in the middle;

[0028] In the above figures:

[0029] 1. Chassis; 11. Cutting chamber; 12. Traction chamber; 13. Discharge port; 14. Feed port; 2. Partition plate; 3. Belt traction device; 31. Upper belt conveyor; 311. Front driven roller; 312. Rear driven roller; 313. Active roller; 314. Upper belt; 315. First reduction motor; 316. Braking surface; 32. Lower belt conveyor; 321. Transmission gear roller; 322. Heightening gear roller; 323. Tensioning gear roller; 324. Synchronous belt; 325. Second reduction motor; 33. Transmission gap; 34. Lifting and lowering adjustment device; 341. Cantilever beam; 342. Connecting plate; 3 43. Slide rail mechanism of the slide plate; 344. Fixed seat; 345. Screw rod; 346. Hand wheel; 35. Angle adjustment cylinder; 4. Multifunctional conveying device; 41. Roller assembly; 411. End; 412. Mounting plate; 413. Rolling roller; 414. Support shaft; 415. Reinforcement plate; 42. End plate; 421. Adjustment port; 422. Positioning hole; 43. Fixed hinge; 44. Movable hinge; 45. Dividing plate; 46. Positioning pin; 47. Limiting roller; 5. Lifting support device; 6. Cross slide plate; 7. Cutting working head; 71. Dust suction pipe; 8. Negative pressure device. DETAILED DESCRIPTION

[0030] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict. For the convenience of description, if the words "upper", "lower", "left" and "right" appear below, they only indicate that the upper, lower, left and right directions are consistent with the accompanying drawings themselves, and do not limit the structure.

[0031] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0032] Examples, such as Figure 1-Figure 10As shown, a belt-traction type high-precision dust-free cutting machine provided by the present invention comprises a chassis 1, wherein a partition 2 is arranged inside the chassis 1 and near the middle thereof, a cutting chamber 11 is provided on one side of the partition 2, a discharge port 13 is arranged on one side of the cutting chamber 11, a traction chamber 12 is provided on the other side of the partition 2, a feed port 14 is arranged on the traction chamber 12 at a position opposite to the discharge port 13, and a belt traction device 3 is arranged in the traction chamber 12. A cross slide 6 is arranged in the cutting chamber 11, and the cross slide 6 is composed of a vertical lead screw slider mechanism and a horizontal lead screw slider mechanism. The cross slide 6 has vertical and horizontal movement functions and a connecting seat is arranged at its moving end, and a cutting working machine head 7 is detachably mounted on the connecting seat, and a dust suction pipe 71 is arranged on the cutting working machine head 7, and the negative pressure end of the dust suction pipe 71 is connected to a negative pressure device 8 arranged on the outside of the chassis 1 through a pipeline. Among them, transparent windows for observing the working conditions of the equipment in the cutting chamber 11 and the traction chamber 12 are arranged on the front and back of the chassis 1; the negative pressure device 8 is equipped with a filter screen or a filter bag, and the dust, debris and smoke generated during the cutting process can be recovered and filtered through its negative pressure capacity to ensure that the equipment has a good dust-free working state. For the cutting working head 7, different cutting heads can be used according to the cutting requirements. For example, a saw blade machine is generally used for cutting pipes. The slide on the cross slide 6 mechanism can be detachably assembled with the cutting working head 7 to improve the utilization rate of the equipment.

[0033] In order to improve the conveying accuracy of the equipment for materials, the belt traction device 3 provided by the equipment includes an upper belt conveyor 31 and a lower belt conveyor 32. There is a conveying gap 33 for conveying materials between the upper belt conveyor 31 and the lower belt conveyor 32. The conveying gap 33 is inclined at 1°-3° toward the feed port 14. The lower belt conveyor 32 includes two transmission gear rollers 321 located at both ends thereof, which are respectively a front transmission gear roller and a rear transmission gear roller. One of the front transmission gear roller and the rear transmission gear roller is used as an active gear roller and can be connected to the power input by the second reduction motor 325; a height adjustment gear roller 322 and a tensioning gear roller 323 are respectively arranged above and below the center line of the two transmission gear rollers 321. The transmission gear roller 321, the height adjustment gear roller 322 and the tensioning gear roller 323 are meshed and driven by a synchronous belt 324. The front transmission gear roller and the rear transmission gear roller can be at the same level, and the height adjustment gear roller 322 can lift the top level of the synchronous belt 324 into a slope, which is the inclination angle of the conveying gap 33. Specifically, the upper belt conveyor 31 and the lower belt conveyor 32 are used to clamp the material on the one hand, and to convey the material box cutting bin 11 by friction transmission on the other hand. At the same time, since the transmission gap 33 of the belt traction device 3 is inclined at a small angle, part of the inertia and gravity of the material can be utilized during the transmission process, which can reduce the probability of long-distance slippage, which is beneficial to ensure that the upper belt 314 and the synchronous belt 324 have a longer actual service life; furthermore, for the main working parts of gravity bearing and friction transmission, namely the synchronous belt 324, through the meshing transmission mode, it cooperates with the transmission gear roller 321, the height adjustment gear roller 322 and the tensioning gear roller 323. Compared with the transmission by pure friction, the transmission accuracy of the lower belt conveyor 32 is greatly improved, avoiding slippage on the transmission path, which is beneficial to improving the accuracy of material transmission, and thus ensuring the cutting quality in the cutting bin 11.

[0034] In coordination with the belt traction device 3, the outer side of the feed port 14 provided by the present invention is provided with a multifunctional conveying device 4 connected thereto, the conveying direction of the multifunctional conveying device 4 is the same as the inclination direction of the conveying gap 33, one end of the multifunctional conveying device 4 is hinged to the chassis 1, and the other end of the multifunctional conveying device 4 is provided with a lifting support device 5, the multifunctional conveying device has a plate conveying mode and a pipe conveying mode, and the multifunctional conveying device includes at least three roller group components 41 distributed side by side, and the roller group components 41 can switch between the plate conveying mode and the pipe conveying mode by adjusting the rotation angle. Among them, the lifting support device 5 can rotate all the roller group components 41 around the hinge center of the multifunctional conveying device 4 and the chassis 1 by telescopic drive, so as to achieve the purpose of fine-tuning the inclination angle, so as to better connect with the conveying gap 33; at the same time, the multifunctional conveying device 4 can serve the feeding and conveying operations of different materials in the workshop by mode switching, and the comprehensive utilization rate is high.

[0035] Furthermore, if Figure 1 and Figure 6 As shown, the multifunctional conveying device 4 provided by the present invention includes two relatively distributed end plates 42, wherein a fixed hinge 43 is provided on one of the end plates 42, and a movable hinge 44 hinged to the lifting support device 5 is provided at the bottom of the other end plate 42, and an adjusting port 421 is provided between the end plates 42 for installing the roller assembly component 41 and matching with the end of the roller assembly component 41, and the multiple adjusting ports 421 include at least two side ports distributed in an inverted V shape and a middle port distributed between the side ports, and a dividing plate 45 is provided in the adjusting port 421, and the dividing plate 45 is axially connected to the end of the roller assembly component 41, and a dividing hole is provided on the dividing plate 45, and a plurality of positioning holes 422 corresponding to the dividing holes are provided in the adjusting port 421, and the dividing holes and the positioning holes 422 are connected by positioning pins 46. Among them, if the support roller surface of the roller assembly 41 is horizontal, it can be used to roll and support the sheet material, and if the support roller surface and the support roller surface of other roller assembly 41 are in a V-shaped state, it can roll and support the pipe material; the movable hinge 44 can produce adaptive rotation with the end of the lifting support device 5 under the telescopic drive of the lifting support device 5, and the multifunctional conveying device 4 as a whole rotates around the hinge center of the fixed hinge 43 to adjust the actual support and clamping angle of the roller assembly 41. The indexing plate 45 preferably adopts a hollow T-shaped structure, and the center of the indexing plate 45 is key-connected with the end of the roller assembly 41, so the rotation of the indexing plate 45 is reflected as the rotation angle of the roller assembly 41, and the adjustment of the angle of the roller assembly 41 is completed by inserting the positioning pin 46 into the positioning hole 422 and the indexing hole that can form a corresponding relationship.

[0036] In order to improve the utilization rate of the roller assembly 41, as Figure 6-Figure 9 As shown, the roller assembly component 41 provided by the present invention includes two hexagonal end heads 411, eight mounting plates 412 are arranged between the two end heads 411, the eight mounting plates 412 are distributed in four pairs and are respectively arranged on the top edge, the bottom edge and two side edges of the end heads 411, a plurality of rolling rollers 413 are arranged between each pair of mounting plates 412 and are spaced apart along the length direction thereof, a support shaft 414 is arranged at the center of the end head 411, and the axial end of the support shaft 414 passes through the adjustment hole and cooperates with the dividing plate 45. Among them, the end 411 and the mounting plate 412 can be connected by welding, and the support shaft 414 is pre-assembled between the two end heads 411; the mounting plate 412 provides a mounting node for the rolling roller 413, and different rows of rolling rollers 413 are used for the roller group component 41 to support the plate and the pipe in different modes. For example, the rolling rollers 413 on the top and bottom edges are used to support the plate, and the rolling rollers 413 on the side form a V-shaped clamping relationship with the rolling rollers 413 on the adjacent roller group component 41 to support the pipe.

[0037] In order to improve the structural strength of the roller assembly 41, the present invention provides a plurality of reinforcing plates 415 that are spaced apart and connected to the mounting plate 412 between the end heads 411. The reinforcing plates 415 are hexagonal in structure and a through hole is provided at the center thereof, through which the support shaft 414 passes. The reinforcing plates 415 can effectively prevent the mounting plate 412 from bending and deforming, thereby improving the installation reliability of the rolling roller 413 on the mounting plate 412 and reducing the probability of missing rollers.

[0038] Furthermore, the present invention adopts a design in which three roller group components 41 are formed into a group. Considering the space utilization, the top side length of the end head 411 provided by the present invention is greater than the bottom side length, and the lengths of the two side sides adjacent to the top side of the end head 411 are less than the lengths of the two side sides connected to the bottom side. In this case, the bottom of the roller assembly 41 in the middle faces upward, and the tops of the other two roller assembly 41 face upward, so that the multiple roller assembly 41 can provide an effective support slope for rolling and supporting the plate on the basis of a high degree of space concentration; for supporting pipes, the roller assembly 41 with the top facing upward is turned to one side and the rolling roller 413 on its side is turned up, and at the same time, the relative position of the roller assembly 41 in the side opening is adjusted higher, and then the roller assembly 41 with the bottom facing upward is moved up along the middle opening until the three roller assembly 41 form at least two V-shaped rolling support channels; because the roller assembly 41 is adaptively moved up, and the bottom surface of the pipe in the rolling support channel is not lower than the top surface of the end plate 42, it is ensured that the pipe can complete the effective forward conveying operation. In order to ensure that the pipe can be safely conveyed, a U-shaped opening can be opened at the position corresponding to the rolling support channel on the end plate 42 to allow enough conveying path for continuous conveying of pipes with smaller diameters.

[0039] In order to improve the accuracy of conveying the plate on the multifunctional conveying device 4 and the belt traction device 3, the present invention is provided with a limiting roller 47 for limiting the edge of the plate on the side of the end 411. The limiting roller 47 can be used to prevent the plate from deviation, and in order to match the plates of different widths, a plurality of connecting holes can be opened on the end 411 for installing the limiting roller 47, so as to obtain a better limiting effect.

[0040] like Figure 3As shown, considering that the sizes of the conveying gap 33 required for conveying plates and conveying pipes are different, in order to meet the conveying performance of materials in different modes, the upper belt conveyor 31 provided by the present invention includes two driven rollers, namely a front driven roller 311 and a rear driven roller 312, and an active roller 313 is arranged between the front driven roller 311 and the rear driven roller 312. The active roller 313 and the driven roller are matched through the upper belt 314. A first reduction motor 315 is arranged at one end of the active roller 313, and a lifting and adjusting device 34 for adjusting the conveying gap 33 is arranged at both ends of the active roller 313. An angle adjusting cylinder 35 is arranged at both ends of the rear driven roller 312, and the top of the angle adjusting cylinder 35 is hinged to the chassis 1. Among them, the first reduction motor 315 is used to drive the active roller 313, and the active roller 313 inputs power to the front driven roller 311 and the rear driven roller 312 through the upper belt 314, so that the upper belt 314 has a transmission surface with appropriate tightness; the lifting and lowering adjustment device 34 can adjust the actual height of the transmission surface of the upper belt conveyor 31, and the angle adjustment cylinder 35 can be extended and retracted to adapt to the length, so that the gap height of the transmission gap 33 is controllable. For the transmission of plates, the gap height can be adjusted to be smaller, and for the transmission of pipes, the gap height can be adjusted to be higher, so that the upper and lower surfaces of the transmission gap 33 can obtain effective contact pairs with the plates and pipes, and then reasonable and stable transmission can be carried out, ensuring the actual utilization rate of the device in different modes.

[0041] Furthermore, the roller diameter of the active roller 313 provided by the present invention is larger than the roller diameter of the driven roller, the active roller 313 is distributed close to the front driven roller 311, the height adjustment gear roller 322 is distributed close to the rear transmission gear roller, the part of the upper belt 314 that is transmitted and matched between the active roller 313 and the front driven roller 311 is the braking surface, the part of the upper belt 314 that is transmitted and matched between the active roller 313 and the rear driven roller 312 is the upper surface of the transmission gap 33, and the part of the synchronous belt 324 that is transmitted and matched with the height adjustment gear roller 322 and the front transmission gear roller bracket is the lower surface of the transmission gap 33. In this way, before the profile approaches the cutting chamber 11, the braking surface and the synchronous belt 324 can form a closed surface through the angle adjustment cylinder 35, and the traction output end of the belt traction device 3 is closed first to control the actual output of the profile, which is beneficial to improve the actual transmission accuracy of the material, thereby meeting the cutting size requirements of the product; for the transmission gap 33, there is a longer parallel corresponding surface between the upper belt 314 and the synchronous belt 324, thereby ensuring sufficient contact with the material, which is beneficial to improving the transmission efficiency.

[0042] In order to improve the practicality of the lifting and adjusting device 34, the lifting and adjusting device 34 provided by the present invention includes a cantilever beam 341, the bottom end of the cantilever beam 341 is provided with a light hole that rotates with the roller end of the active roller 313, the side of the cantilever beam 341 is provided with a connecting plate 342, the partition 2 is provided with a skateboard rail mechanism 343 connected to the connecting plate 342 by bolts, the top of the skateboard rail mechanism 343 is provided with a fixed seat 344, the middle of the fixed seat 344 is provided with a screw rod 345 connected to the top of the cantilever beam 341, and the top of the screw rod 345 is provided with a hand wheel 346 that rotates with it. Among them, the hole wall of the light hole is polished with high precision, and can play the role of a bearing after cooperating with the roller end of the active roller 313, so that the active roller 313 has a stable rolling center; by manually rotating the handwheel 346, the actual height of the handwheel 346 on the screw rod 345 can be changed, and the cantilever beam 341 can be able to make stable linear motion along the slide rail mechanism 343 to complete the adjustment operation of the transmission gap 33, and ensure that the transmission gap 33 has good stability after the adjustment, so as to ensure that the material has good transmission controllability in the transmission gap 33.

[0043] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A belt-traction high-precision dust-free cutting machine, comprising a chassis, wherein a partition is arranged inside the chassis and near the middle thereof, one side of the partition is a cutting chamber, one side of the cutting chamber is provided with a discharge port, the other side of the partition is a traction chamber, the traction chamber is provided with a feed port at a position opposite to the discharge port, a belt traction device is arranged in the traction chamber, and the characteristics are as follows: The belt traction device includes an upper belt conveyor and a lower belt conveyor, and a transmission gap for conveying materials is formed between the upper belt conveyor and the lower belt conveyor, and the transmission gap is inclined at 1°-3° toward the feed port. The lower belt conveyor includes two transmission gear rollers located at both ends thereof, which are respectively a front transmission gear roller and a rear transmission gear roller. A height adjustment gear roller and a tensioning gear roller are respectively arranged above and below the center lines of the two transmission gear rollers. The transmission gear roller, the height adjustment gear roller and the tensioning gear roller are meshed and driven by a synchronous belt. A multifunctional conveying device connected to the feed port is arranged on the outer side of the feed port, and the conveying direction of the multifunctional conveying device is the same as the inclination direction of the transmission gap. One end of the multifunctional conveying device is hinged to the chassis, and the other end of the multifunctional conveying device is provided with a lifting support device. The multifunctional conveying device has a plate conveying mode and a pipe conveying mode. The multifunctional conveying device includes at least three roller group components distributed side by side, and the roller group components can switch between the plate conveying mode and the pipe conveying mode by adjusting the rotation angle.

2. A belt-pulling high-precision dust-free cutting machine according to claim 1, characterized in that: The multifunctional conveying device includes two relatively distributed end plates, wherein one of the end plates is provided with a fixed hinge, and the bottom of the other end plate is provided with a movable hinge hinged to the lifting support device, the end plate is provided with a plurality of adjustment openings corresponding to the roller group components one by one, the plurality of adjustment openings include at least two side openings distributed in an inverted V shape and an intermediate opening distributed between the side openings, a dividing plate is provided in the adjustment opening, the dividing plate is axially connected to the end of the roller group component, the dividing plate is provided with a dividing hole, the adjustment opening is provided with a plurality of positioning holes corresponding to the dividing holes, and the dividing holes are connected to the positioning holes through positioning pins.

3. A belt-pulling high-precision dust-free cutting machine according to claim 2, characterized in that: The roller group component includes two hexagonal end heads, 8 mounting plates are arranged between the two end heads, the 8 mounting plates are distributed in 4 pairs and are respectively arranged on the top edge, bottom edge and two side edges of the end heads, and a number of rolling rollers are arranged between each pair of mounting plates and are spaced apart along the length direction thereof. A support shaft is arranged at the center of the end head, and the axial end of the support shaft passes through the adjustment hole and cooperates with the dividing plate.

4. A belt-pulling high-precision dust-free cutting machine according to claim 3, characterized in that: A plurality of reinforcing plates are arranged between the end heads and are distributed at intervals and connected to the mounting plate. The reinforcing plates are hexagonal structures and a through hole is arranged at the center thereof.

5. A belt-pulling high-precision dust-free cutting machine according to claim 3 or 4, characterized in that: The top edge length of the end head is greater than the bottom edge length, the two side edges adjacent to the top edge of the end head are shorter than the two side edges connected to the bottom edge, and the rolling rollers located on the side of the end head are arranged on the longer side edges.

6. The belt-pulling high-precision dust-free cutting machine according to claim 3, characterized in that: A limiting roller for limiting the edge of the plate is arranged on the side of the end head.

7. The belt-pulling high-precision dust-free cutting machine according to claim 1, characterized in that: The upper belt conveyor includes two driven rollers, namely a front driven roller and a rear driven roller. An active roller is arranged between the front driven roller and the rear driven roller. The active roller and the driven roller cooperate with each other through the upper belt transmission. A first reduction motor is arranged at one end of the active roller. A lifting and lowering adjustment device for adjusting the transmission gap is arranged at both ends of the active roller. Angle adjustment cylinders are arranged at both ends of the rear driven roller. The top of the angle adjustment cylinder is hinged to the chassis.

8. The belt-pulling high-precision dust-free cutting machine according to claim 7, characterized in that: The roller diameter of the active roller is larger than that of the driven roller, the active roller is distributed close to the front driven roller, the height-adjusting gear roller is distributed close to the rear transmission gear roller, the portion of the upper belt that is in transmission cooperation between the active roller and the front driven roller is a braking surface, the portion of the upper belt that is in transmission cooperation between the active roller and the rear driven roller is an upper surface of the transmission gap, and the portion of the synchronous belt that is in transmission cooperation between the height-adjusting gear roller and the front transmission gear roller bracket is a lower surface of the transmission gap.

9. The belt-pulling high-precision dust-free cutting machine according to claim 8, characterized in that: The lifting and adjusting device includes a cantilever beam, a light hole rotatably matched with the roller end of the active roller is arranged at the bottom end of the cantilever beam, a connecting plate is arranged on the side of the cantilever beam, a skateboard rail mechanism connected to the connecting plate by bolts is arranged on the partition, a fixed seat is arranged on the top of the skateboard rail mechanism, a screw rod connected to the top of the cantilever beam is arranged in the middle of the fixed seat, and a hand wheel rotatably matched with the screw rod is arranged on the top of the screw rod.

10. The belt-pulling high-precision dust-free cutting machine according to claim 1, characterized in that: A cross slide is arranged in the cutting chamber, the cross slide has vertical and horizontal movement functions and a cutting working head is arranged at its moving end, a dust suction pipe is arranged on the cutting working head, and the negative pressure end of the dust suction pipe is connected to the negative pressure device arranged on the outside of the chassis through a pipeline.

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