A sawing machine width adjustment system and sawing machine

Abstract

The embodiment of the present application discloses a saw machine width adjustment system and a saw machine thereof, which is fixedly installed on a base, and includes at least two synchronous width adjustment units, a transmission unit, and a drive unit. The synchronous width adjustment unit includes a fixed seat horizontally arranged on the base, and two groups of movable seats installed through the fixed seat, and the two groups of movable seats can be relatively close to or away from each other along the axis of the fixed seat; the transmission unit includes a pair of transmission assemblies, and the transmission assemblies drive the movable seats through the fixed seat; and a pair of the transmission assemblies are driven by the drive unit. The saw machine has the advantages of a relatively large adjustable width range and a small overall width of the adjustment system, and the saw machine using the width adjustment system of the technical solution has the advantages of occupying a small plant area and being easy to access the connection equipment of the previous and next processes.

Description

Technical Field

[0001] The invention relates to the technical field of woodworking sawing machines, in particular to a width adjustment system of a sawing machine and a woodworking sawing machine utilizing the width adjustment system. Background Art

[0002] The woodworking sawing machine forms the workpiece into the required specifications or shapes by cutting off the excess material. According to the different width requirements of finished products and semi-finished products, the two movable working platforms on the sawing machine for mounting a pair of saw blades need to form different spacings. In the prior art, for example, Chinese invention patent 201520558864.5 "Door leaf sawing machine" provides a technical solution that uses positive and negative screw rods to connect two movable working platforms, and drives the positive and negative screw rods through a reduction motor to change the working spacing between the two movable working platforms. However, the above solution has the following technical problems:

[0003] 1. In order to have a certain adjustable width range, the overall width of the equipment is large, and the plant area occupied is large;

[0004] 2. It is inconvenient to connect with the connecting equipment of the previous and next processes;

[0005] 3. The adjustable width range of the equipment is relatively narrow, generally 450mm to 1000mm. Summary of the invention

[0006] The object of the present invention is to overcome the above-mentioned technical problems, thereby providing a width adjustment system for a sawing machine, which has the advantages of a relatively large adjustable width range and a small overall width of the adjustment system. Therefore, the sawing machine using the width adjustment system of this technical solution has the advantages of occupying a small factory area and being convenient for connecting with the connection equipment of the previous and next processes. The present invention also provides a sawing machine using this width adjustment system.

[0007] To achieve the above-mentioned purpose, an embodiment of the present invention provides a saw machine width adjustment system, which is fixedly installed on a base, and includes at least two groups of synchronous width adjustment units, a transmission unit, and a drive unit. The synchronous width adjustment unit includes a fixed seat horizontally arranged on the base, and two groups of movable seats installed through the fixed seat, and a pair of the movable seats can be relatively close to or far away from each other along the axial direction of the fixed seat; the transmission unit includes a pair of transmission components, and the transmission components drive the movable seats through the fixed seat; the pair of transmission components are driven by the drive unit.

[0008] By means of the above structure, a pair of transmission components are driven by the same driving unit, and power is transmitted to the movable seats through the pair of transmission components to realize the synchronous approach or separation of the pair of movable seats, and the transmission component drives the movable seats through the fixed seat. In this technical solution, only a pair of movable seats are relatively movable, and the driving unit and the transmission unit have no lateral movement relative to the base. Therefore, the width adjustment system of the technical solution has the advantages of a relatively large adjustable width range and a small overall width of the adjustment system. Therefore, the saw machine using the width adjustment system of the technical solution has the advantages of occupying a small factory area and being convenient for connecting with the connection equipment of the previous and next processes.

[0009] Preferably, the fixed seat includes a fixed seat body, a pair of gears arranged on the fixed seat body, and a sliding guide rail fixed on the fixed seat body, and the movable seat includes a movable seat body, a rack arranged on the movable seat body and meshing with the gears, and a sliding guide block cooperating with the sliding guide rail.

[0010] Preferably, the movable seat also includes an auxiliary support assembly, which includes a round rod guide rail arranged parallel to the sliding guide rail, an eccentric shaft fixedly installed through the base, and an eccentric wheel installed through the eccentric shaft, and the outer periphery of the eccentric wheel has a guide groove matching the round rod guide rail.

[0011] Preferably, the transmission assembly includes a transmission shaft and a reducer driving the transmission shaft, the transmission shaft passes through the gear arrangement and is fixed to the gear, and the gears located on the same side of the base are arranged on the same transmission shaft; the reducers of a pair of the transmission assemblies are driven by the driving unit.

[0012] Preferably, a plurality of transmission shaft support plates are horizontally arranged on the base.

[0013] Preferably, the driving unit is a motor connected to a pair of reducers via a coupling.

[0014] Preferably, the saw machine width adjustment system also includes a centering unit, which includes at least two centering components, and the centering components include a pair of centering tensioning wheels, a centering belt tensioned by the pair of centering tensioning wheels, a pair of centering sliders fixed on both sides of the centering belt travel, a pair of centering guide rails matching the pair of centering sliders, and a pair of centering sliders are fixed with centering brackets.

[0015] In summary, compared with the prior art, the width adjustment system of the saw machine of the technical solution of the present application has the advantages of a relatively large adjustable width range and a small overall width of the adjustment system.

[0016] To achieve the above-mentioned purpose, the second embodiment of the present invention provides a saw machine that utilizes the above-mentioned saw machine width adjustment system, including a sawing waste material discharging system, the sawing waste material discharging system including a pair of waste material receiving units, a waste material conveying unit installed through the base, and a waste material collecting unit; the pair of waste material receiving units are respectively located on both sides of the waste material conveying unit, and are both arranged along the axial direction of the waste material conveying unit; the waste material conveying unit includes a waste material transmission belt and a pair of tensioning rollers fixedly installed through the base, one of the tensioning rollers is driven by a reduction motor; the saw machine width adjustment system is arranged between the forward section and the return section of the waste material transmission belt; the waste material collecting unit is located at the transmission end of the waste material conveying unit, and receives the cutting waste falling from the waste material conveying unit.

[0017] In the prior art, in order to solve the problem of waste material recycling, China Invention Patent 201520558864.5 "Door Leaf Saw" also provides a technical solution of waste material crawlers set on both sides of two movable workbenches to receive and output waste materials. However, this solution also brings about the problem of increased overall width of the saw machine, large space occupied by the factory building, and inconvenience in connecting with other production line equipment.

[0018] By means of the above structure, by setting the waste material receiving unit on the waste material transmission unit, the setting position of the sawing waste material discharge system in the sawing machine is located between the two movable working platforms, so the setting of the longitudinal sawing waste material discharge system does not increase the overall width of the sawing machine equipment; further, the sawing machine width adjustment system is set between the forward section and the return section of the waste material transmission belt, so that the two do not affect each other and do not increase the overall width and height of the equipment. Therefore, the longitudinal sawing waste material discharge system of the technical solution of the present application has a relatively simple and compact structure, which can reduce the occupation of the factory space, and is more flexible due to its compact structure, and is easy to connect with other equipment.

[0019] Preferably, the waste material receiving unit includes an inclined guide plate and a lifting unit; the upper side of the guide plate is installed on the movable frame through the lifting unit, and the lower side of the guide plate is located on the waste material transmission belt; the lifting unit includes a mounting plate hingedly connected to the upper side of the guide plate, a pair of guide rods arranged inside the movable frame, a movable plate sleeved on the pair of guide rods, a power part for driving the movable plate to rise and fall, and a lifting groove opened on the inner side wall of the movable frame, one side of the movable plate extends out of the movable frame through the lifting groove and is fixedly connected to the mounting plate.

[0020] Preferably, the transmission assembly includes a transmission shaft and a reducer driving the transmission shaft, the transmission shaft drives the movable seat, the movable seat located on the same side of the base is driven by a transmission shaft, and the reducers of a pair of transmission assemblies are driven by the driving unit; the power member is a steel wire rope, one end of the power member is fixedly connected to the movable plate, and the other end is wound around the transmission shaft through a pulley, and is reeled or unreeled as the transmission shaft rotates.

[0021] In the present technical solution, the power member is linked with the transmission unit, and while adjusting the working distance between the two movable working platforms, the relative angle between the guide plate and the mounting plate, that is, the angle between the guide plate and the conveying surface of the residual material conveying unit, is changed, so as to avoid the reduction of the distance between a pair of movable working platforms and the influence of the setting of the guide plate on the conveying of the residual material conveying unit.

[0022] In summary, compared with the prior art, the saw machine utilizing the width adjustment system in the technical solution of the present application has the advantages of simple and compact structure, and is easy to connect with other equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative labor.

[0024] Figure 1 A schematic diagram of the overall structure of a sawing machine according to an embodiment of the present invention;

[0025] Figure 2 A schematic diagram of the structure of a bandwidth adjustment system according to an embodiment of the present invention;

[0026] Figure 3 A schematic diagram of the structure of a synchronous width modulation unit according to an embodiment of the present invention;

[0027] Figure 4 A top view of a synchronous width modulation unit according to an embodiment of the present invention;

[0028] Figure 5 A schematic diagram of installing a guide plate according to an embodiment of the present invention;

[0029] Figure 6 for Figure 5 Schematic diagram of the dissection.

[0030] In the figure: 100-base, 110-movable frame, 200-synchronous width adjustment unit, 210-fixed seat, 220-movable seat, 211-fixed seat body, 212-gear, 213-sliding guide rail, 221-movable seat body, 222-rack, 223-sliding guide block, 224-round bar guide rail, 225-eccentric shaft, 226-eccentric wheel, 227-movable frame mounting platform, 300-transmission unit, 310-transmission shaft, 320-reducer, 330-transmission shaft support sheet, 400-drive unit, 500-centering Unit, 510-centering tensioning wheel, 520-centering belt, 530-centering slider, 540-centering guide rail, 550-centering bracket, 600-residual material receiving unit, 610-guide plate, 620-lifting unit, 630-guide plate extension piece, 640-roller assembly, 621-mounting plate, 622-guide rod, 623-movable plate, 624-power part, 625-pulley, 700-residual material conveying unit, 720-tensioning roller, 800-movable working platform, 850-longitudinal conveying unit, 860-vacuum adsorption unit. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this application.

[0032] Example: Reference Figure 1 The sawing machine shown includes a base 100, two movable working platforms, a width adjustment system, and a sawing residual material discharge system.

[0033] Base 100

[0034] The base 100 can be any sawing machine base in the prior art. A pair of movable frames 110 are arranged thereon, and the movable frames 110 include an inner frame and an outer frame fixedly mounted to each other, with a gap between the inner frame and the outer frame.

[0035] Mobile work platform 800

[0036] The two movable working platforms 800 are installed through a pair of movable frames 110, including a longitudinal conveying unit 850 (any belt conveying mechanism in the prior art) installed on the inner side of the inner frame, a vacuum adsorption unit 860 (any mechanism in the prior art that can adsorb and lift the workpiece on the longitudinal conveying unit 850) installed on the outer side of the inner frame, and a longitudinal sawing unit (any sawing mechanism in the prior art, not shown in the figure) installed on the outer frame. The saw blade of the longitudinal sawing unit is located above the gap between the inner frame and the outer frame. After sawing, the sawing residue falls from the gap between the inner frame and the outer frame.

[0037] Width adjustment system

[0038] refer to Figure 2 , Figure 3 , Figure 4 As shown, the width adjustment system is fixedly installed through the base 100, and includes at least two groups (two in this embodiment) of synchronous width adjustment units 200, a transmission unit 300, and a drive unit 400. The synchronous width adjustment unit 200 includes a fixed base 210 horizontally arranged on the base 100, and two pairs of movable bases 220 installed through the fixed base 210. The two pairs of movable bases 220 can be relatively close to or away from each other along the axial direction of the fixed base 210; the transmission unit 300 includes a pair of transmission components, and the transmission components drive the movable base 220 through the fixed base 210; and a pair of transmission components are driven by the drive unit 400.

[0039] Specifically, the fixed seat 210 includes a fixed seat body 211 screwed and fixed on the base 100, a pair of gears 212 arranged on the fixed seat body 211, and a pair of sliding guide rails 213 fixed on the fixed seat body 211. The movable seat 220 includes a movable seat body 221, a rack 222 arranged on the movable seat body 221 and meshed with the gear 212, a sliding guide block 223 matched with the sliding guide rail 213, and an auxiliary support assembly. The auxiliary support assembly includes a round bar guide rail 224 arranged parallel to the sliding guide rail 213, an eccentric shaft 225 fixedly installed (welded or screwed) through the base 100, and an eccentric wheel 226 installed through the eccentric shaft 225, and the outer periphery of the eccentric wheel 226 has a guide groove matched with the round bar guide rail 224. The top surface of the movable seat body 221 is screwed or welded with a movable frame mounting platform 227, which is used to screw the movable frame 110. In this embodiment, the movable seat body 221 is screwed or welded to be installed across the base 100, a pair of gears 212 are welded or integrally formed at the proximal ends of both sides of the fixed seat body 211, and a pair of sliding guide rails 213 are screwed and installed on both sides of the fixed seat body 211; the rack 222 is welded or screwed to the bottom surface of the movable seat body 221, and its meshing installation is above the gear 212, and the round rod guide rail 224 is welded or screwed to the side of the movable seat body 221, and cooperates with the eccentric shaft 225 and the eccentric wheel 226 to assist in supporting the movable seat body 221.

[0040] The transmission assembly includes a transmission shaft 310, a reducer 320 driving the transmission shaft 310, and a plurality of transmission shaft support plates 330 arranged horizontally on the base 100. The transmission shaft 310 passes through the gear 212 and is key-connected with the gear 212, and is used to drive the gear 212 of the movable seat 220 located on the same side of the base 100 to be key-connected to the same transmission shaft 310, so the transmission shaft 310 is arranged along the axial direction of the base 100; a pair of reducers 320 of the transmission assembly are driven by the driving unit 400. In this embodiment, the driving unit 400 is a motor, which is connected to the pair of reducers 320 through a coupling.

[0041] During operation, the driving unit 400 drives the transmission shafts 310 on both sides to rotate synchronously and towards each other through the two reducers 320 , and drives the gears 212 on both sides of the fixed seat body 211 to rotate synchronously and towards each other, so as to make the movable seat body 221 move closer to or away from each other.

[0042] The transmission assembly drives the movable seat 220 through the fixed seat 210. Therefore, in the present technical solution, only one pair of movable seats 220 are relatively movable, and the driving unit 400 and the transmission unit 300 have no lateral movement relative to the base 100. Therefore, the width adjustment system of the present technical solution can achieve a width adjustment range of 300mm to 1300mm, and has the advantages of a relatively large adjustable width range and a small overall width of the adjustment system.

[0043] As a preferred embodiment, the saw machine width adjustment system further includes a centering unit 500, which includes at least two (two in this embodiment) centering components, including a pair of centering tensioning wheels 510 screwed and installed on the base 100, a centering belt 520 tensioned by the pair of centering tensioning wheels 510, a pair of centering sliders 530 screwed and installed on both sides of the stroke of the centering belt 520, and a pair of centering guide rails 540 matched with the pair of centering sliders 530, and the pair of centering guide rails 540 are screwed and installed on the base 100. A pair of centering sliders 530 are fixedly provided with centering brackets 550, and the two centering brackets 550 are respectively used to connect with the movable frame 110.

[0044] Saw residue discharge system

[0045] Replay Figure 1 The sawing waste material discharging system includes a pair of waste material receiving units 600, a waste material conveying unit 700 installed through the base 100, and a waste material collecting unit; the pair of waste material receiving units 600 are respectively located on both sides of the waste material conveying unit 700, and are arranged along the axial direction of the waste material conveying unit 700; the waste material conveying unit 700 includes a waste material transmission belt (not shown in the figure, and its installation position can be determined by the setting position of a pair of tensioning rollers 720), and a pair of tensioning rollers 720 fixedly installed through the base 100, one of which is driven by a reduction motor. The sawing machine width adjustment system is set between the process section and the return section of the waste material transmission belt, that is, the movable seats 220 on both sides of the synchronous width adjustment unit 200 extend out of the waste material transmission belt and are connected to the movable frame 110, and the remaining fixed structures are all set inside the waste material transmission belt. The waste material collecting unit is located at the transmission end of the waste material conveying unit 700, and receives the cutting waste falling from the waste material conveying unit 700.

[0046] refer to Figure 5 and Figure 6Specifically, the waste material receiving unit 600 includes a guide plate 610 arranged obliquely, and a plurality of (3 to 5) lifting units 620 arranged on the inner side of the outer frame. The upper side of the guide plate 610 is installed on the outer frame of the movable frame 110 through the lifting unit 620, and the upper side of the guide plate 610 passes through the gap between the outer frame and the inner frame, and its lower side is located on the waste material transmission belt. The lifting unit 620 includes a mounting plate 621 connected to the upper side of the guide plate 610 by hinge (any hinge method in the prior art), a pair of guide rods 622 screwed and installed inside the movable frame 110, a movable plate 623 sleeved on the pair of guide rods 622, a power member 624 for driving the movable plate 623 to rise and fall, and a lifting groove opened on the inner side wall of the movable frame 110, and one side of the movable plate 623 extends out of the movable frame 110 through the lifting groove, and is screwed or welded to the mounting plate 621. A limiting support piece 650 is integrally formed below the hinged portion between the back of the guide plate 610 and the lifting unit 620 , and an end of the limiting support piece 650 abuts against the mounting plate 621 to limit the minimum installation angle between the guide plate 610 and the mounting plate 621 .

[0047] As a preferred embodiment, the power member 624 is a steel wire rope, one end of which is fixedly connected to the movable plate 623 , and the other end of which is wound around the transmission shaft 310 through a pulley 625 , and is wound or unwound as the transmission shaft 310 rotates.

[0048] When the width adjustment system drives a pair of movable frames 110 to move toward each other (the spacing is reduced), the transmission shaft 310 drives the power member 624 to reel, the movable plate 623 rises, and drives the upper end of the guide plate 610 to rise through the mounting plate 621, so that the installation angle between the guide plate 610 and the mounting plate 621 is reduced until the end of the limiting support plate 650 abuts against the mounting plate 621; when the width adjustment system drives a pair of movable working platforms to move away from each other (the spacing is reduced), the transmission shaft drives the power member 624 to unwind, the movable plate 623 descends, and drives the upper end of the guide plate 610 to descend through the mounting plate 621, so that the installation angle between the guide plate 610 and the mounting plate 621 is increased. Through the above structure, the power member 624 is linked with the width adjustment system, and while adjusting the working distance between a pair of movable frames 110, the relative angle between the guide plate 610 and the mounting plate 621, that is, the angle between the guide plate 610 and the waste material transmission belt, is changed, so as to avoid the reduction of the distance between the pair of movable frames 110 and the influence of the setting of the guide plate 610 on the width of the effective conveying working surface of the waste material transmission belt 310.

[0049] As a preferred embodiment, a roller assembly 640 and an extension plate 630 extending from the lower side of the guide plate 610 are provided on one side of the lower side of the guide plate 610. The extension plate 630 is an extension of the guide plate 610 and is a part of the material of the guide plate 610. The roller assembly 640 is any unpowered roller structure in the prior art, and its movable direction is perpendicular to the conveying direction of the residual material transmission belt. It is restricted by the extension plate 630 and only contacts the residual material transmission belt when the relative angle between the guide plate 610 and the mounting plate 621 increases to a certain extent. A person skilled in the art can set the angle according to needs.

[0050] As a preferred embodiment, the conveying direction of the waste material conveying belt is opposite to the conveying direction of the longitudinal conveying unit 850. Therefore, the waste material collection unit is located at the conveying start end side of the longitudinal conveying unit 850, so as to avoid the setting of the waste material collection unit affecting the connection of the saw machine with the subsequent process equipment. In this embodiment, the waste material collection unit is a waste material collection box.

[0051] The above description is intended to be illustrative and not limiting. Upon reading the above description, many embodiments and many applications beyond the examples provided will be apparent to those skilled in the art. Therefore, the scope of the present teachings should not be determined with reference to the above description, but should be determined with reference to the appended claims and the full scope of equivalents to which such claims are entitled. For the purpose of comprehensiveness, all articles and references, including disclosures of patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the preceding claims is not intended to be a waiver of such subject matter, nor should it be considered that the applicant has not considered such subject matter to be part of the disclosed application subject matter.

Claims

1. A saw machine width adjustment system, fixedly installed by a base (100), characterized in that: The invention comprises at least two groups of synchronous width adjustment units (200), a transmission unit (300), and a drive unit (400); the synchronous width adjustment unit (200) comprises a fixed seat (210) arranged horizontally on the base (100), and two groups of movable seats (220) installed through the fixed seat (210); a pair of movable seats (220) can be relatively close to or far away from each other along the axial direction of the fixed seat (210); the transmission unit (300) comprises a pair of transmission assemblies, and the transmission assemblies drive the movable seats (220) through the fixed seat (210); and the pair of transmission assemblies are driven by the drive unit (400); The saw machine width adjustment system also includes a centering unit (500), the centering unit (500) includes at least two centering components, the centering components include a pair of centering tensioning wheels (510), a centering belt (520) tensioned by the pair of centering tensioning wheels (510), a pair of centering sliders (530) fixedly arranged on both sides of the travel of the centering belt (520), and a pair of centering guide rails (540) matched with the pair of centering sliders (530), and a centering bracket (550) fixedly arranged on the pair of centering sliders (530); A movable frame mounting platform (227) is screwed or welded to the top surface of the movable seat body (221), and is used for screwing and mounting the movable frame (110).

2. The saw machine width adjustment system according to claim 1, characterized in that: The fixed seat (210) comprises a fixed seat body (211), a pair of gears (212) arranged on the fixed seat body (211), and a sliding guide rail (213) fixed on the fixed seat body (211); the movable seat (220) comprises a movable seat body (221), a rack (222) arranged on the movable seat body (221) and meshing with the gears (212), and a sliding guide block (223) matched with the sliding guide rail (213).

3. The saw machine width adjustment system according to claim 2, characterized in that: The movable seat (220) also includes an auxiliary support assembly, which includes a round rod guide rail (224) arranged parallel to the sliding guide rail (213), an eccentric shaft (225) fixedly installed through the base (100), and an eccentric wheel (226) installed through the eccentric shaft (225), and the outer periphery of the eccentric wheel (226) has a guide groove that matches the round rod guide rail (224).

4. The saw machine width adjustment system according to claim 2, characterized in that: The transmission assembly comprises a transmission shaft (310) and a reducer (320) driving the transmission shaft (310); the transmission shaft (310) passes through the gear (212) and is fixed to the gear (212); the gears (212) located on the same side of the base (100) are arranged on the same transmission shaft (310); and the reducers (320) of a pair of the transmission assemblies are driven by the driving unit (400).

5. The saw machine width adjustment system according to claim 4, characterized in that: A plurality of transmission shaft support plates (330) are horizontally arranged on the base (100).

6. The saw machine width adjustment system according to claim 4, characterized in that: The driving unit (400) is a motor connected to a pair of reducers (320) via a coupling.

7. A saw machine using the saw machine width adjustment system according to claim 1, characterized in that: The invention comprises a sawing waste material discharging system, wherein the sawing waste material discharging system comprises a pair of waste material receiving units (600), a waste material conveying unit (700) installed through the base (100), and a waste material collecting unit; the pair of waste material receiving units (600) are respectively located on both sides of the waste material conveying unit (700), and are arranged along the axial direction of the waste material conveying unit (700); the waste material conveying unit (700) comprises a waste material transmission belt, and a pair of tensioning rollers (720) fixedly installed through the base (100), one of the tensioning rollers (720) is driven by a reduction motor; the sawing machine width adjustment system is arranged between the forward section and the return section of the waste material transmission belt; the waste material collecting unit is located at the transmission end of the waste material conveying unit (700), and receives the cutting waste falling from the waste material conveying unit (700).

8. A sawing machine according to claim 7, characterized in that: The residual material receiving unit (600) comprises an inclined guide plate (610) and a lifting unit (620); the upper side of the guide plate (610) is mounted on the movable frame (110) through the lifting unit (620), and the lower side of the guide plate (610) is located on the residual material transmission belt; the lifting unit (620) comprises a mounting plate (621) hingedly connected to the upper side of the guide plate (610), a pair of guide rods (622) arranged inside the movable frame (110), a movable plate (623) sleeved on the pair of guide rods (622), a power member (624) for driving the movable plate (623) to move up and down, and a lifting groove provided on the inner side wall of the movable frame (110); one side of the movable plate (623) extends out of the movable frame (110) through the lifting groove and is fixedly connected to the mounting plate (621).

9. A sawing machine according to claim 8, characterized in that: The transmission assembly comprises a transmission shaft (310) and a reducer (320) driving the transmission shaft (310); the transmission shaft (310) drives the movable seat (220); the movable seat (220) located on the same side of the base (100) is driven by a transmission shaft (310); a pair of reducers (320) of the transmission assembly are driven by the driving unit (400); the power member (624) is a steel wire rope, one end of the power member (624) is fixedly connected to the movable plate (623), and the other end is wound around the transmission shaft (310) through a pulley (625), and is wound or unwound as the transmission shaft (310) rotates.

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