A high-speed horizontal saw capable of realizing fast replacement of saw band

Abstract

The application provides a high-speed horizontal saw capable of realizing fast replacement of saw belts, and relates to a high-speed horizontal saw, which comprises a horizontal saw body, a driving wheel set and a driven wheel set, the driving wheel set and the driven wheel set comprise a fixed sleeve, a center rotating shaft is installed in the fixed sleeve in a rotating and connecting mode, an outer circle of an end of the center rotating shaft is fixed with a conical surface shaft sleeve, the conical surface shaft sleeve is in conical surface pressing and fitting mode with a wheel sleeve, the wheel sleeve is further outwardly expanded with a locking pressing ring at one end close to a back surface of a saw bow shell, a pressing and locking cylinder and a pressing and locking rod are installed on the saw bow shell, the pressing and locking rod is used for temporarily positioning the wheel sleeve, two sets of installation covers on a front surface of the saw bow shell are correspondingly covered on the driving belt wheel and the driven belt wheel outside, and a set of top pressing pieces are further fixed in the center, at least two sets of symmetrically distributed ejecting pieces are further installed on the fixed sleeve, and the ejecting pieces are used for pushing the wheel sleeve to separate from the conical surface shaft sleeve, the application is used for realizing fast replacement of saw belts, can save time for maintenance during production stage, and can also reduce the risk of directly and long-time contacting the saw bow by personnel and causing accidental switch opening.

Description

Technical Field

[0001] This invention relates to a high-speed horizontal saw, and more particularly to a high-speed horizontal saw that enables quick blade changes. Background Technology

[0002] High-speed horizontal saws generally refer to horizontally structured cutting saws, which are mainly used for cutting aluminum alloy bars. They include a base, saw bow, drive wheel set, driven wheel set, lifting system, feeding assembly, and automatic clamping mechanism. The saw bow is mounted on the base and contains a saw blade. It is lifted and cut by the lifting system. The drive wheel set and driven wheel set are distributed at both ends of the saw bow to tension the saw blade and drive the saw blade to rotate to complete the sawing operation. The feeding assembly is also set below the saw bow. The aluminum alloy bars are fed on the feeding assembly and clamped and positioned by the automatic clamping mechanism during sawing.

[0003] Currently, to improve the safety of the sawing environment, saw blade covers are generally installed over the drive and driven wheel sets. Therefore, when the saw blade needs to be replaced, the machine must be stopped first, then the saw blade cover must be opened, and the saw blade must be carefully removed manually from the drive and driven wheel sets. Then, the new saw blade is installed and adjusted to fit the drive and driven wheel sets. This process is time-consuming and labor-intensive, and if it is during the production phase, the downtime is also long, which greatly reduces production efficiency. Summary of the Invention

[0004] To address the aforementioned technical problems, the purpose of this invention is to provide a high-speed horizontal saw that enables quick blade replacement, thereby saving downtime for maintenance during production and reducing the risk of accidental switch activation due to prolonged direct contact with the saw bow.

[0005] This invention provides the following technical solution:

[0006] A high-speed horizontal saw capable of quick blade changing includes a horizontal saw body. The horizontal saw body includes a base on which a feeding assembly and an automatic clamping mechanism are mounted, and a saw bow mounted on the base via a gantry frame. The gantry frame spans both sides of the feeding assembly and the automatic clamping mechanism. The saw bow is equipped with a drive wheel set, a driven wheel set, and guide arms. The saw blade is tensioned and fitted around the drive pulley of the drive wheel set and the driven pulley of the driven wheel set. The drive pulley is driven by a drive motor. The guide arms are provided in two sets and are used to twist the saw blade between them so that the saw teeth are vertically distributed. A lifting system is mounted on the gantry frame to lift the saw bow so that the saw blade can descend to cut the bar on the feeding assembly. In this part, the feeding assembly, the automatic clamping mechanism, and the lifting system are all existing technologies and will not be described in detail here.

[0007] The driving and driven wheel sets further include a fixed sleeve, a central shaft, a conical bushing, a wheel sleeve, a locking ring, a locking cylinder, a locking rod, a pressing component, and a ejector component. The fixed sleeve is installed on the back of the saw frame housing, and a central shaft is rotatably installed inside it. The drive motor of the driving wheel set is installed on one end of the fixed sleeve, and its drive end is used to drive one end of the central shaft. A set of conical bushings is fixed to the other end of the central shaft. The outer ring of the conical bushing and the inner ring of the wheel sleeve are in a conical press fit. The outer ring of the wheel sleeve is fixedly connected to the driving or driven pulley, which is close to the back of the saw frame housing. One end of the surface extends outward with a locking ring. At least two sets of locking cylinders are installed on the saw bow housing. The driving end of the locking cylinder is connected to a locking rod. The locking rod extends into and abuts against the end of the locking ring to temporarily position the wheel sleeve. The front of the saw bow housing is also provided with two sets of mounting covers. The two sets of mounting covers cover the outside of the driving pulley and the driven pulley respectively. At the center of the covers is a set of pressing members for pressing the wheel sleeve so that its conical surface is tightly pressed against the conical bushing. At least two sets of symmetrically distributed pop-out members are also installed on the fixed sleeve. The pop-out members are used to push the wheel sleeve away from the conical bushing.

[0008] Preferably, it also includes a saw body quick-change device arranged opposite to the horizontal saw body. This saw body quick-change device is used to receive or install the drive pulley, driven pulley and saw blade toward the saw arch. After receiving the drive pulley, driven pulley and saw blade, it can move away from the saw arch. The saw body quick-change device with the new drive pulley, driven pulley and saw blade already positioned can move closer to the saw arch and push the drive pulley and driven pulley together with the saw blade into the saw arch. During this process, the operation of installing the drive pulley, driven pulley and saw blade on the saw body quick-change device can be carried out before stopping the machine, thereby shortening the downtime for maintenance during the production stage.

[0009] The saw body quick-change device includes a main frame, a sub-frame, and main positioning components and secondary positioning components installed on the main frame and sub-frame respectively for adapting and positioning the active pulley. The main frame is fixed on a horizontal support platform, and the sub-frame is slidably connected to the horizontal support platform and is driven laterally by a lead screw to adjust the distance between it and the main frame, thereby assisting in the tensioning and installation of the saw blade. The horizontal support platform is installed on a base frame with rollers, so when the saw blade needs to be replaced, the base frame can be pushed to move the entire saw body quick-change device closer to the saw bow.

[0010] Preferably, the main positioning component and the secondary positioning component include a push cylinder, a push shaft, a limiting claw, and a limiting component. One end of the wheel sleeve is provided with a push plate, the inner ring of which is flared from one end of the push plate to the other end of the wheel sleeve. The center of the push plate is open and allows the short shaft of one end of the push shaft to pass through. The push shaft is guided and installed on the main frame or the secondary frame. The push cylinder is fixedly installed on the main frame or the secondary frame, and its driving end is connected to the other end of the push shaft. One end of the push shaft is also provided with a limiting claw. The end of the limiting claw passes through the push plate and, driven by the limiting component, presses and positions the push plate at the step formed by the end of the push shaft and the short shaft.

[0011] Preferably, the limiting component includes a positioning cylinder, a connecting rod, and a conical block. The limiting claws are provided in two sets and are slidably connected to each other in the slot at the end of the push shaft. On the opposite side, there is an inclined block that slidably connects with the conical surface of the conical block. One end of the conical block is connected to the drive end of the positioning cylinder through the connecting rod. The positioning cylinder is fixedly installed in the push shaft. A guide block is also provided outside the connecting rod. The guide block is guided and installed in a guide groove opened in the positioning shaft.

[0012] Therefore, when positioning the wheel sleeve is required, the saw body quick-change device can be pushed close to the saw bow. After the saw bow's mounting cover is opened, since the main frame, sub-frame, and saw bow are opposite each other, their inclination angles are the same. The push shaft moves towards the central rotating shaft under the drive of the push cylinder. After abutting against the central rotating shaft, the locking rod moves away from the wheel sleeve. The wheel sleeve then moves outward under the push of the ejector and disengages from the conical bushing until its push plate abuts against the step at the end of the push shaft. This activates the positioning cylinder. The driving end of the positioning cylinder pulls the conical block through the connecting rod, thereby driving the two sets of limiting claws outward in a linear motion until the limiting claws... By pressing the end against the push plate, the wheel sleeve and the drive pulley or driven belt can be positioned together, and then the saw body quick-change device can be moved backward away from the saw frame. At this time, the drive pulley, driven pulley and saw belt are completely disassembled. Similarly, after the saw body quick-change device that has received the drive pulley, driven pulley and saw belt is away from the saw frame, the saw body quick-change device that has been positioned with the new drive pulley, driven pulley and saw belt can approach the saw frame and push the drive pulley and driven pulley together with the saw belt into the saw frame, thus completing the synchronous installation of the drive pulley, driven pulley and saw belt into the saw frame.

[0013] Preferably, the guide arm includes a mounting plate, a first lead screw, a first lead screw motor, a longitudinal lifting plate, a transverse adjusting plate, a second lead screw, a second lead screw motor, a rotating base plate, an electric turntable, a frame, limiting guide wheels, and pressing guide wheels. The mounting plate is fixed on the saw bow, and a first lead screw is mounted on it. The first lead screw is threaded into the longitudinal lifting plate and, driven by the first lead screw motor, is used to drive the longitudinal lifting plate to move up and down longitudinally. A second lead screw is mounted at the end of the longitudinal lifting plate and is threaded into the transverse adjusting plate. Driven by the second lead screw motor, the second lead screw is used to drive the transverse adjusting plate to move reciprocally laterally. An electric turntable is mounted on the transverse adjusting plate, and a frame is fixed on the rotating platform of the electric turntable. Four sets of rectangularly distributed limiting guide wheels are mounted on the frame. The saw blade passes between two sets of opposing limiting guide wheels, and the back side of its saw teeth is pressed and limited by pressing guide wheels.

[0014] Therefore, after the active pulley, passive pulley, and saw blade are positioned on the saw bow, the first lead screw can drive the longitudinal lifting plate to descend, making the gap between the four sets of limit guide wheels flush with the saw blade. Then, the second lead screw drives the transverse adjustment plate to move towards the saw blade, so that the saw blade is placed in the gap between the four sets of limit guide wheels. The saw blade is guided by the rolling limit guide wheels on both sides, and the back of the saw teeth is limited by the rolling pressure guide wheels. Then, the electric turntable is started, so that the saw blade can be twisted with the help of the limit guide wheels on both sides, so that the saw blade teeth between the two sets of guide arms are downward, ready for sawing operation.

[0015] Preferably, the ejector is an ejector cylinder or a compression spring. When the ejector is an ejector cylinder, its driving end is used to press against the side of the wheel sleeve. When the ejector is a compression spring, the fixed sleeve has an ejector groove for configuring the compression spring. An ejector rod is guided and connected in the ejector groove. One end of the ejector rod abuts against the end of the compression spring, and the other end is rotatably installed on one side of the rotating ring. The other side of the rotating ring presses against the side of the wheel sleeve.

[0016] Preferably, the pressing component includes a pressing cylinder and a pressing block. The pressing cylinder is fixedly mounted on the mounting cover, and its driving end extends into the mounting cover to be fitted with a set of pressing blocks. The pressing block has a conical surface and is positioned at the center opening of the push plate. It is used to press the push plate against the center rotating shaft to ensure a tight press fit between the conical bushing and the wheel sleeve, thereby ensuring that the rotation of the center rotating shaft of the drive wheel assembly can synchronously drive the drive pulley to rotate.

[0017] Preferably, the end of the fixed sleeve of the passive wheel assembly is sealed by a cover, and the fixed sleeve of the active wheel assembly is fixedly installed on the back of the saw bow housing. The back of the saw bow housing is provided with a set of elongated mounting grooves, and the fixed sleeve of the passive wheel assembly passes through the elongated mounting grooves. A set of mounting brackets is also fixed on its outer side. The mounting brackets are guided and connected to the back of the saw bow housing along the elongated extension direction of the elongated mounting grooves. One end of the mounting brackets is also driven and connected to a set of tensioning cylinders. The tensioning cylinders are installed on the back of the saw bow housing to drive the mounting brackets and the fixed sleeves to move along the elongated mounting grooves, thereby driving the passive wheel assembly away from the active wheel assembly to tension the saw band.

[0018] Preferably, the central rotating shaft and the conical bushing are fixedly connected by an expansion coupling sleeve. Therefore, when the conical surface of the conical bushing is worn, the conical bushing can be removed by loosening the bolts of the expansion coupling sleeve from the outside, making maintenance more convenient.

[0019] Preferably, the saw body quick-change device is configured as two sets symmetrically distributed in opposite directions. The horizontal support platform of the two sets of saw body quick-change devices is fixed on the turntable of the base frame. The operator can install new drive pulleys, driven pulleys and saw blades on the set of saw body quick-change devices facing away from the saw bow, while the set of saw body quick-change devices facing the saw bow can receive the drive pulleys, driven pulleys and saw blades on the saw bow. After receiving them, the drive pulleys, driven pulleys and saw blades are rotated 180 degrees by rotating the turntable 180 degrees for docking with the saw bow.

[0020] The beneficial effects of this invention are: This invention provides a high-speed horizontal saw that can realize quick blade replacement. Specifically, the active pulley of the active wheel group and the passive pulley of the passive wheel group in the high-speed horizontal saw are configured as a quick-release structure. When replacement is required, the active pulley, passive pulley and saw blade can be removed and replaced simultaneously and quickly. At this time, the new saw blade can be pre-fitted and installed on the new active pulley and passive pulley, and the assembled active pulley, passive pulley and saw blade can be installed on the saw bow, thereby reducing downtime for maintenance.

[0021] Additionally, a quick-change saw body device can be installed opposite the saw arch to receive the quick-release drive pulley, driven pulley, and saw blade. The quick-change saw body device that receives the drive pulley, driven pulley, and saw blade moves away from the saw arch, while the quick-change saw body device that has been positioned with the new drive pulley, driven pulley, and saw blade can move closer to the saw arch and push the drive pulley, driven pulley, and saw blade together into the saw arch. During this process, the operation of installing the drive pulley, driven pulley, and saw blade on the quick-change saw body device can be carried out before stopping the machine, thereby shortening the downtime for maintenance during the production phase.

[0022] After the active pulley, passive pulley, and saw blade are installed on the saw bow, the two sets of guide arms on the saw bow can be inserted into both sides of the saw blade after it is lowered, and the saw blade is rotated at a certain angle so that the saw blade between the two sets of guide arms is vertically set for sawing operation. This setting of guide arms can also realize automated control operation and does not require manual adjustment, so it is more time-saving and labor-saving.

[0023] The saw body quick-change device can be configured as two sets symmetrically distributed in opposite directions. The horizontal support platforms of the two sets of saw body quick-change devices are fixed on the turntable of the base frame. The operator can install new drive pulleys, driven pulleys and saw blades on the set of saw body quick-change devices facing away from the saw bow, while the set of saw body quick-change devices facing the saw bow can receive the drive pulleys, driven pulleys and saw blades on the saw bow. After receiving them, the drive pulleys, driven pulleys and saw blades are rotated 180 degrees by rotating the turntable 180 degrees for docking with the saw bow. Attached Figure Description

[0024] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0025] Figure 1 This is a schematic diagram of the base structure with a feeding assembly and an automatic clamping mechanism in this invention;

[0026] Figure 2 This is a schematic diagram of the back structure after the saw bow is installed on the base;

[0027] Figure 3 This is a schematic diagram of the front structure of the saw bow;

[0028] Figure 4 This is a schematic diagram showing the distribution of the drive pulley, the driven pulley, and the saw blade.

[0029] Figure 5 This is a cross-sectional view of the relative docking parts of the saw body quick-change device and the saw bow drive wheel set (both the saw body quick-change device and the saw bow have a set of drive pulleys for position indication).

[0030] Figure 6 This is a cross-sectional view of the drive wheel assembly;

[0031] Figure 7 This is a cross-sectional view of the relative docking parts of the saw body quick-change device and the saw bow passive wheel set (both the saw body quick-change device and the saw bow have a set of passive pulleys for position indication);

[0032] Figure 8 This is a cross-sectional view of the passive wheel assembly;

[0033] Figure 9 This is a sectional view of the structure before the positioning of the limiting component;

[0034] Figure 10 This is a sectional view of the structure after the limiting component has been positioned.

[0035] Figure 11 This is a cross-sectional view of the part where the two sets of quick-change saw bodies are fixed on the turntable and connected to the saw bow drive wheel assembly.

[0036] Markings in the diagram:

[0037] 101. Horizontal saw body; 102. Feeding assembly; 103. Automatic clamping mechanism; 104. Base; 105. Gantry frame; 106. Saw bow; 107. Drive wheel assembly; 108. Driven wheel assembly; 109. Guide arm; 110. Saw blade; 111. Drive motor; 112. Drive pulley; 113. Driven pulley; 114. Lifting system; 115. Fixing sleeve; 116. Central shaft; 117. Conical bushing; 118. Wheel sleeve; 119. Locking ring; 120. Locking cylinder; 121. Locking rod; 122. Top pressure component; 123. Pop-out component; 124. Push plate; 125. Mounting cover; 126. Cover; 127. Mounting bracket; 128. Tensioning cylinder; 129. Expansion coupling sleeve; 200. Saw body quick change device; 201. Main frame; 202. Subframe; 203. Main positioning component; 204. Secondary positioning component; 205. Horizontal support platform; 206. Lead screw; 207. Base frame; 208. Push cylinder; 209. Push shaft; 210. Limiting claw; 211. Limiting component; 212. Short shaft; 2111. Positioning cylinder; 2112. Connecting rod; 2113. Conical block; 2114. Inclined block; 2115. Guide. Block; 2116, Guide groove; 1091, Mounting plate; 1092, Lead screw one; 1093, Lead screw motor one; 1094, Longitudinal lifting plate; 1095, Lateral adjustment plate; 1096, Lead screw two; 1099, Electric turntable; 10910, Platform; 10911, Limiting guide wheel; 10912, Pressing guide wheel; 1221, Top pressure cylinder; 1222, Top pressure block. Detailed Implementation

[0038] Example 1

[0039] like Figure 1-10As shown, a high-speed horizontal saw capable of quick-change of the saw blade 110, in this embodiment, includes a horizontal saw body 101. The horizontal saw body 101 includes a base 104 on which a feeding assembly 102 and an automatic clamping mechanism 103 are mounted, and a saw bow 106 mounted on the base 104 via a gantry frame 105. The gantry frame 105 spans across both sides of the feeding assembly 102 and the automatic clamping mechanism 103. A drive wheel set 107, a driven wheel set 108, and a guide arm 109 are mounted on the saw bow 106. The saw blade 110 is tensioned and sleeved on the drive wheel set 107. Apart from the active pulley 112 of 7 and the passive pulley 113 of the passive pulley group 108, the active pulley 112 is driven by the drive motor 111. The guide arm 109 is provided with two sets and is used to twist the saw blade 110 between the two so that the saw teeth are vertically distributed. The lifting system 114 is installed on the gantry frame 105 to lift the saw bow 106 to drive the saw blade 110 down to saw the bar on the feeding assembly 102. In this part, the feeding assembly 102, the automatic clamping mechanism 103 and the lifting system 114 are all existing technologies and will not be described in detail here.

[0040] The drive wheel assembly 107 and the driven wheel assembly 108 also include a fixed sleeve 115, a central rotating shaft 116, a conical bushing 117, a wheel sleeve 118, a locking ring 119, a locking cylinder 120, a locking rod 121, a top pressing component 122, and a pop-out component 123. The fixed sleeve 115 is installed on the back of the saw frame 106 housing, and a set of central rotating shafts 116 is rotatably installed inside it. The drive motor 111 of the drive wheel assembly 107 is installed on the end side of the fixed sleeve 115, and its drive end is used to drive and connect to one end of the central rotating shaft 116. A set of conical bushings 117 is fixed to the other end of the central rotating shaft 116. The outer ring of the conical bushing 117 and the inner ring of the wheel sleeve 118 are in a conical pressing fit. The outer ring of the wheel sleeve 118 is fixedly connected to the drive pulley 112 or the driven pulley 113. Near the back of the saw bow 106 housing, a locking ring 119 extends outward. At least two sets of locking cylinders 120 are installed on the saw bow 106 housing. The driving end of the locking cylinder 120 is connected to a locking rod 121. The locking rod 121 extends into and abuts against the end of the locking ring 119 to temporarily position the wheel sleeve 118. The front of the saw bow 106 housing is also provided with two sets of mounting covers 125. The two sets of mounting covers 125 cover the drive pulley 112 and the driven pulley 113 respectively. At the center of the covers, there is a set of pressing members 122 for pressing the wheel sleeve 118 so that its conical surface is tightly pressed against the conical bushing 117. At least two sets of symmetrically distributed ejector members 123 are also installed on the fixed sleeve 115. The ejector members 123 are used to push the wheel sleeve 118 away from the conical bushing 117.

[0041] Example 2

[0042] In this embodiment, a high-speed horizontal saw capable of quick-change of the saw blade 110 is further defined based on embodiment 1. It also includes a saw body quick-change device 200 disposed opposite to the horizontal saw body 101. This saw body quick-change device 200 is used to receive or install the drive pulley 112, the driven pulley 113 and the saw blade 110 toward the saw arch 106. After receiving the drive pulley 112, the driven pulley 113 and the saw blade 110, it can move away from the saw arch 106. The saw body quick-change device 200, which has already positioned the new drive pulley 112, the driven pulley 113 and the saw blade 110, can move closer to the saw arch 106 and push the drive pulley 112 and the driven pulley 113, along with the saw blade 110, into the saw arch 106. During this process, the operation of installing the drive pulley 112, the driven pulley 113 and the saw blade 110 on the saw body quick-change device 200 can be performed before stopping the machine, thereby shortening the downtime for maintenance during the production phase.

[0043] The saw body quick-change device 200 includes a main frame 201, a secondary frame 202, and a main positioning component 203 and a secondary positioning component 204 installed on the main frame 201 and the secondary frame 202 respectively for adapting to and positioning the active pulley 112. The main frame 201 is fixed on the horizontal support platform 205, and the secondary frame 202 is slidably connected to the horizontal support platform 205 and is driven laterally by the lead screw 206 to adjust the distance between it and the main frame 201, thereby assisting in the tensioning and installation of the saw band 110. The horizontal support platform 205 is installed on the base frame 207 with rollers. When it is necessary to replace the saw band 110, the base frame 207 can be pushed to move the saw body quick-change device 200 closer to the saw bow 106.

[0044] The main positioning component 203 and the secondary positioning component 204 include a push cylinder 208, a push shaft 209, a limiting claw 210, and a limiting component 211. One end of the wheel sleeve 118 is provided with a push plate 124, the inner ring of which is flared from one end of the push plate 124 to the other end of the wheel sleeve 118. The center of the push plate 124 is open and allows the short shaft 212 of one end of the push shaft 209 to pass through. The push shaft 209 is guided and installed on the main frame 201 or the secondary frame 202. The push cylinder 208 is fixedly installed on the main frame 201 or the secondary frame 202, and its driving end is connected to the other end of the push shaft 209. One end of the push shaft 209 is also provided with a limiting claw 210. The end of the limiting claw 210 passes through the push plate 124 and, driven by the limiting component 211, presses and positions the push plate 124 at the step formed by the end of the push shaft 209 and the short shaft 212.

[0045] The limiting component 211 includes a positioning cylinder 2111, a connecting rod 2112, and a conical block 2113. Two sets of limiting claws 210 are provided and are slidably connected to each other in the slot at the end of the push shaft 209. On the opposite side, there is an inclined block 2114 that is slidably connected to the conical surface of the conical block 2113. One end of the conical block 2113 is connected to the drive end of the positioning cylinder 2111 through the connecting rod 2112. The positioning cylinder 2111 is fixedly installed in the push shaft 209. A guide block 2115 is also provided outside the connecting rod 2112. The guide block 2115 is guided and installed in the guide groove 2116 opened in the positioning shaft.

[0046] Therefore, when the positioning sleeve 118 needs to be positioned, the saw body quick-change device 200 can be pushed close to the saw arch 106. After the mounting cover 125 of the saw arch 106 is opened, since the main frame 201 and the sub-frame 202 are opposite to the saw arch 106, their inclination angles are the same. The push shaft 209 moves towards the central rotating shaft 116 under the drive of the push cylinder 208 and after abutting against the central rotating shaft 116, the locking rod 121 moves away from the sleeve 118. The sleeve 118 then moves outward under the push of the ejector 123 and disengages from the conical bushing 117 until its push plate 124 abuts against the step at the end of the push shaft 209, thereby activating the positioning cylinder 2111. The driving end of the positioning cylinder 2111 pulls the conical block 2113 through the connecting rod 2112, thereby driving the two sets of limiting claws 210 outward in a linear motion until the limiting claws 210 The end of the saw body is pressed against the push plate 124, which can position the wheel sleeve 118 and the drive pulley 112 or the driven belt together. Then the saw body quick change device 200 moves backward away from the saw arch 106. At this time, the drive pulley 112, the driven pulley 113 and the saw belt 110 are completely disassembled. Similarly, after the saw body quick change device 200, which has received the drive pulley 112, the driven pulley 113 and the saw belt 110, moves away from the saw arch 106, the saw body quick change device 200, which has been positioned with the new drive pulley 112, the driven pulley 113 and the saw belt 110, can approach the saw arch 106 and push the drive pulley 112 and the driven pulley 113, along with the saw belt 110, into the saw arch 106. This completes the synchronous installation of the drive pulley 112, the driven pulley 113 and the saw belt 110 into the saw arch 106.

[0047] The guide arm 109 includes a mounting plate 1091, a first lead screw 1092, a first lead screw motor 1093, a longitudinal lifting plate 1094, a transverse adjusting plate 1095, a second lead screw 1096, a second lead screw motor, a rotating base plate, an electric turntable 1099, a frame 10910, a limiting guide wheel 10911, and a pressing guide wheel 10912. The mounting plate 1091 is fixed to the saw arm 106, and the first lead screw 1092 is mounted on it. The first lead screw 1092 is threaded into the longitudinal lifting plate 1094 and, driven by the first lead screw motor, is used to drive and adjust the longitudinal lifting plate 1094 to move up and down longitudinally. A second lead screw 1096 is installed at the end of the lifting plate 1094. The second lead screw 1096 is threadedly connected to the transverse adjustment plate 1095 and is used to drive the transverse adjustment plate 1095 to reciprocate laterally under the drive of the second lead screw motor. An electric turntable 1099 is installed on the transverse adjustment plate 1095. A frame 10910 is fixed on the rotating table of the electric turntable 1099. Four sets of rectangularly distributed limiting guide wheels 10911 are installed on the frame 10910. The saw blade 110 passes between two sets of opposing limiting guide wheels 10911, and the back side of its saw teeth is pressed and limited by the pressing guide wheel 10912.

[0048] Therefore, after the active pulley 112, passive pulley 113, and saw blade 110 are positioned on the saw bow 106, the lead screw 1092 can drive the longitudinal lifting plate 1094 to descend, so that the gap between the four sets of limiting guide wheels 10911 is flush with the saw blade 110. Then, the lead screw 1096 drives the transverse adjustment plate 1095 to move toward the saw blade 110, so that the saw blade 110 is placed in the gap between the four sets of limiting guide wheels 10911. The two sides of the saw blade 110 are guided by the rolling of the limiting guide wheels 10911, and the back of the saw teeth is limited by the rolling of the pressing guide wheel 10912. Then, the electric turntable 1099 is started, so that the saw blade 110 can be assisted by the limiting guide wheels 10911 on both sides of the saw blade 110 to twist, so that the saw teeth of the saw blade 110 between the two sets of guide arms 109 are downward, ready for sawing operation.

[0049] The ejector 123 is either an ejector cylinder or a compression spring. When the ejector 123 is an ejector cylinder, its driving end is used to press against the side of the wheel sleeve 118. When the ejector 123 is a compression spring, the fixed sleeve 115 has an ejector groove for configuring the compression spring. An ejector rod is guided and connected in the ejector groove. One end of the ejector rod abuts against the end of the compression spring, and the other end is rotatably installed on one side of the rotating ring. The other side of the rotating ring presses against the side of the wheel sleeve 118.

[0050] The pressing component 122 includes a pressing cylinder 1221 and a pressing block 1222. The pressing cylinder 1221 is fixedly mounted on the mounting cover 125. Its driving end extends into the mounting cover 125 and is flexibly mounted with a set of pressing blocks 1222. The pressing block 1222 is a conical block, which is arranged at the center opening of the push plate 124. It is used to press the push plate 124 against the side of the central rotating shaft 116 to ensure a tight pressing fit between the conical bushing 117 and the wheel sleeve 118. This ensures that the rotation of the central rotating shaft 116 of the drive wheel set 107 can synchronously drive the drive pulley 112 to rotate.

[0051] The end of the fixed sleeve 115 of the passive wheel assembly 108 is sealed by the cover 126. The fixed sleeve 115 of the active wheel assembly 107 is fixedly installed on the back of the saw frame 106 housing. A set of elongated mounting grooves is provided on the back of the saw frame 106 housing. The fixed sleeve 115 of the passive wheel assembly 108 passes through the elongated mounting grooves. A set of mounting brackets 127 is also fixed on its outer side. The mounting brackets 127 are guided and connected to the back of the saw frame 106 housing along the elongated extension direction of the elongated mounting grooves. One end of the mounting brackets 127 is also driven and connected to a set of tensioning cylinders 128. The tensioning cylinders 128 are installed on the back of the saw frame 106 housing to drive the mounting brackets 127 and the fixed sleeve 115 to move along the elongated mounting grooves, thereby driving the passive wheel assembly 108 away from the active wheel assembly 107 to tension the saw band 110.

[0052] The central rotating shaft 116 and the conical bushing 117 are fixedly connected by the expansion coupling sleeve 129. Therefore, when the conical surface of the conical bushing 117 is worn, the conical bushing 117 can be removed by loosening the bolts of the expansion coupling sleeve 129 from the outside, which makes maintenance relatively convenient.

[0053] Example 3

[0054] like Figure 11 As shown, a high-speed horizontal saw capable of quick-change of saw blade 110 is further defined in this embodiment based on embodiment 2. The saw body quick-change device 200 is configured as two sets symmetrically distributed in opposite directions. The horizontal support platform 205 of the two sets of saw body quick-change devices 200 is fixed on the turntable of the base frame 207. The operator can install a new active pulley 112, passive pulley 113 and saw blade 110 on the set of saw body quick-change devices 200 facing away from the saw bow 106, while the set of saw body quick-change devices 200 facing the saw bow 106 can receive the active pulley 112, passive pulley 113 and saw blade 110 on the saw bow 106. After receiving, the active pulley 112, passive pulley 113 and saw blade 110 are rotated 180 degrees by the 180° rotation of the turntable for docking with the saw bow 106.

[0055] The working principle of this invention is:

[0056] When it is necessary to disassemble the drive pulley 112, driven pulley 113, and saw band 110, the saw body quick-change device 200 can be pushed close to the saw arch 106. After the mounting cover 125 of the saw arch 106 is opened, since the main frame 201 and the sub-frame 202 are opposite to the saw arch 106, their inclination angles are the same. Driven by the push cylinder 208, the push shaft 209 moves toward the central rotating shaft 116 and, after abutting against the central rotating shaft 116, the locking rod 121 moves away from the wheel sleeve 118. The wheel sleeve 118, under the push of the ejector 123, moves outward and disengages from the conical bushing 117 until its push plate 124 abuts against the step at the end of the push shaft 209, thereby activating the positioning cylinder 2111. The driving end of the positioning cylinder 2111 pulls the conical block 2113 through the connecting rod 2112, thereby driving the two sets of limiting claws 210 outward in a linear motion until... The end of the limiting claw 210 presses against the push plate 124, which can position the wheel sleeve 118 and the driving pulley 112 or the driven belt together. Then, the saw body quick change device 200 moves backward away from the saw frame 106. At this time, the driving pulley 112, the driven pulley 113 and the saw belt 110 are completely disassembled. Similarly, after the saw body quick change device 200, which has received the driving pulley 112, the driven pulley 113 and the saw belt 110, moves away from the saw frame 106, the saw body quick change device 200, which has been positioned with the new driving pulley 112, the driven pulley 113 and the saw belt 110, can approach the saw frame 106 and push the driving pulley 112 and the driven pulley 113, along with the saw belt 110, into the saw frame 106. This completes the synchronous installation of the driving pulley 112, the driven pulley 113 and the saw belt 110 into the saw frame 106.

[0057] After the saw blade 110 of the active pulley 112, passive pulley 113, and saw blade 110 is positioned on the saw bow 106, the lead screw 1092 can drive the longitudinal lifting plate 1094 to descend, so that the gap between the four sets of limit guide wheels 10911 is flush with the saw blade 110. Then, the lead screw 1096 drives the transverse adjustment plate 1095 to move toward the saw blade 110, so that the saw blade 110 is placed in the gap between the four sets of limit guide wheels 10911. The two sides of the saw blade 110 are guided by the rolling of the limit guide wheels 10911, and the back side of the saw teeth is limited by the rolling of the pressing guide wheel 10912. Then, the electric turntable 1099 is started, so that the saw blade 110 can be assisted by the limit guide wheels 10911 on both sides of the saw blade 110 to twist, so that the saw teeth of the saw blade 110 between the two sets of guide arms 109 are downward, ready for sawing operation.

[0058] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-speed horizontal saw capable of quick blade changing, characterized in that, The system includes a horizontal saw body (101), which includes a base (104) on which a feeding assembly (102) and an automatic clamping mechanism (103) are mounted, and a saw bow (106) mounted on the base (104) via a gantry frame (105). The gantry frame (105) spans across both sides of the feeding assembly (102) and the automatic clamping mechanism (103). The saw bow (106) is equipped with a drive wheel assembly (107), a driven wheel assembly (108), and a guide arm (109). The saw blade (110) The tension sleeve is installed on the active pulley (112) of the active pulley group (107) and the passive pulley (113) of the passive pulley group (108). The active pulley (112) is driven by the drive motor (111) to rotate. The guide arm (109) is provided with two sets and is used to twist the saw blade (110) between the two so that the saw teeth are vertically distributed. The lifting system (114) is installed on the gantry frame (105) to lift the saw bow (106) to drive the saw blade (110) to descend to saw the bar on the feed assembly (102). The drive wheel assembly (107) and the driven wheel assembly (108) also include a fixed sleeve (115), a central rotating shaft (116), a conical bushing (117), a wheel sleeve (118), a locking ring (119), a locking cylinder (120), a locking rod (121), a top pressing component (122), and a pop-out component (123). The fixed sleeve (115) is installed on the back of the saw bow (106) housing, and a set of central rotating shafts (116) are rotatably installed inside it. The drive motor (111) of the assembly (107) is mounted on the end of the fixed sleeve (115), and its drive end is used to drive and connect to one end of the central rotating shaft (116). The other end of the central rotating shaft (116) is fixed with a set of conical bushings (117). The outer ring of the conical bushings (117) and the inner ring of the wheel sleeve (118) are in conical press fit. The outer ring of the wheel sleeve (118) is fixedly connected to the driving pulley (112) or the driven pulley (113). Near the back of the saw bow (106) housing, a locking ring (119) extends outward. At least two sets of locking cylinders (120) are installed on the saw bow (106) housing. The driving end of the locking cylinder (120) is connected to a locking rod (121). The locking rod (121) extends into and abuts against the end of the locking ring (119) to temporarily position the wheel sleeve (118). The front of the saw bow (106) housing is also provided with two sets of mounting covers (125). Two sets of mounting covers (125) are respectively covered on the outside of the driving pulley (112) and the driven pulley (113). At the center of each cover is a set of pressing members (122) for pressing the wheel sleeve (118) so that its conical surface is tightly pressed onto the conical bushing (117). At least two sets of symmetrically distributed pop-out members (123) are also installed on the fixed sleeve (115). The pop-out members (123) are used to push the wheel sleeve (118) away from the conical bushing (117). It also includes a saw body quick-change device (200) arranged opposite to the horizontal saw body (101). The saw body quick-change device (200) includes a main frame (201), a sub-frame (202), and a main positioning component (203) and a secondary positioning component (204) installed on the main frame (201) and the sub-frame (202) respectively for adapting to the positioning drive pulley (112). The main frame (201) is fixed on a horizontal support platform (205). The sub-frame (202) is slidably connected to the horizontal support platform (205) and is driven laterally by a lead screw (206) to adjust the distance between it and the main frame (201). The horizontal support platform (205) is installed on a base frame (207) with rollers.

2. A high-speed horizontal saw capable of quick blade changing according to claim 1, characterized in that, The main positioning component (203) and the secondary positioning component (204) include a push cylinder (208), a push shaft (209), a limiting claw (210), and a limiting component (211). One end of the wheel sleeve (118) is provided with a push plate (124), the inner ring of which is flared from one end of the push plate (124) to the other end of the wheel sleeve (118). The center of the push plate (124) is open and allows the short shaft (212) of one end of the push shaft (209) to pass through. The push shaft (209) is guided and installed on the main positioning component (208). On the main frame (201) or the sub-frame (202), the push cylinder (208) is fixedly installed on the main frame (201) or the sub-frame (202), and its driving end is connected to the other end of the push shaft (209). One end of the push shaft (209) is also provided with a limiting claw (210). The end of the limiting claw (210) passes through the push plate (124) and, under the drive of the limiting member (211), presses and positions the push plate (124) at the step formed by the end of the push shaft (209) and the short shaft (212).

3. A high-speed horizontal saw capable of quick-change of saw blade according to claim 2, characterized in that, The limiting component (211) includes a positioning cylinder (2111), a connecting rod (2112), and a conical block (2113). The limiting claw (210) is provided in two sets and is slidably connected to the slot at the end of the push shaft (209). On the opposite side, there is an inclined block (2114) that is slidably connected to the conical surface of the conical block (2113). One end of the conical block (2113) is connected to the drive end of the positioning cylinder (2111) through the connecting rod (2112). The positioning cylinder (2111) is fixedly installed in the push shaft (209). A guide block (2115) is also provided outside the connecting rod (2112). The guide block (2115) is guided and installed in the guide groove (2116) opened in the positioning shaft.

4. A high-speed horizontal saw capable of quick blade changing according to claim 1, characterized in that, The guide arm (109) includes a mounting plate (1091), a first lead screw (1092), a first lead screw motor (1093), a longitudinal lifting plate (1094), a transverse adjustment plate (1095), a second lead screw (1096), a second lead screw motor, an electric turntable (1099), a frame (10910), a limiting guide wheel (10911), and a pressing guide wheel (10912). The mounting plate (1091) is fixed on the saw bow (106), and the first lead screw (1092) is mounted on it. The first lead screw (1092) is threaded into the longitudinal lifting plate (1094) and, driven by the first lead screw motor, is used to drive and adjust the longitudinal lifting plate (1094) to move up and down longitudinally. A second lead screw (1096) is installed at the end of the lifting plate (1094). The second lead screw (1096) is threadedly connected to the transverse adjustment plate (1095) and is used to drive the transverse adjustment plate (1095) to reciprocate laterally under the drive of the second lead screw motor. An electric turntable (1099) is installed on the transverse adjustment plate (1095). A frame (10910) is fixed on the rotating platform of the electric turntable (1099). Four sets of rectangularly distributed limiting guide wheels (10911) are installed on the frame (10910). The saw blade (110) passes between two sets of opposite limiting guide wheels (10911), and the back side of its saw teeth is pressed and limited by the pressing guide wheel (10912).

5. A high-speed horizontal saw capable of quick blade changing according to claim 1, characterized in that, The ejector (123) is either an ejector cylinder or a compression spring. When the ejector (123) is an ejector cylinder, its driving end is used to press against the side of the wheel sleeve (118). When the ejector (123) is a compression spring, the fixed sleeve (115) has an ejector groove for configuring the compression spring. An ejector rod is guided and connected in the ejector groove. One end of the ejector rod abuts against the end of the compression spring, and the other end is rotatably installed on one side of the rotating ring. The other side of the rotating ring presses against the side of the wheel sleeve (118).

6. A high-speed horizontal saw capable of quick blade changing according to claim 2, characterized in that, The pressing component (122) includes a pressing cylinder (1221) and a pressing block (1222). The pressing cylinder (1221) is fixedly installed on the mounting cover (125), and its driving end extends into the mounting cover (125) to be connected to a set of pressing blocks (1222). The pressing block (1222) is a conical block, which is arranged at the center opening of the push plate (124) and is used to press the push plate (124) against the side of the central rotating shaft (116).

7. A high-speed horizontal saw capable of quick blade changing according to claim 1, characterized in that, The end of the fixed sleeve (115) of the passive wheel assembly (108) is sealed by a cover (126). The fixed sleeve (115) of the active wheel assembly (107) is fixedly installed on the back of the saw bow (106) housing. A set of elongated mounting grooves is provided on the back of the saw bow (106) housing. The fixed sleeve (115) of the passive wheel assembly (108) passes through the elongated mounting grooves. A set of mounting brackets (127) is also fixed on its outer side. The mounting brackets (127) are guided and connected to the back of the saw bow (106) housing along the elongated extension direction of the elongated mounting grooves. A set of tensioning cylinders (128) is also driven and connected to one end of the mounting brackets (108). The tensioning cylinders (128) are installed on the back of the saw bow (106) housing to drive the mounting brackets (127) and the fixed sleeve (115) to move along the elongated mounting grooves, thereby driving the passive wheel assembly (108) away from the active wheel assembly (107) to tension the saw band (110).

8. A high-speed horizontal saw capable of quick blade changing according to claim 1, characterized in that, The central rotating shaft (116) and the conical bushing (117) are fixedly connected by an expansion coupling sleeve (129).

9. A high-speed horizontal saw capable of quick blade changing according to claim 1, characterized in that, The saw body quick-change device (200) is configured as two sets distributed symmetrically in opposite directions, and the horizontal support platform (205) of the two sets of saw body quick-change devices (200) is fixed on the turntable of the base frame (207).

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