Bar cutting machine with high safety

Abstract

The utility model relates to a high-safety bar cutting machine which comprises a cutting rack, a cutting motor, a cutting blade, a mounting part and a limiting assembly, the cutting motor is arranged on the cutting rack, the limiting assembly comprises a limiting disc, a limiting block and a retaining part, the limiting disc is arranged on an output shaft of the cutting motor, and the limiting block is arranged on the output shaft of the cutting motor. The limiting block is connected to the cutting rack in a sliding mode in the direction close to or away from the limiting disc, the retaining piece is used for keeping the limiting block to abut against the limiting disc, and the cutting blade is used for being arranged on an output shaft of the cutting motor in a sleeving mode. And the mounting piece is used for mounting the cutting blade on an output shaft of the cutting motor. The bar cutting machine has the effect of improving the safety when the blade of the bar cutting machine is replaced.

Description

Technical Field

[0001] The present application relates to the field of cutting equipment, and in particular to a rod cutting machine with high safety. Background Art

[0002] Bars generally refer to stainless steel bars, which are made from stainless steel ingots through hot rolling or forging. During the production process, longer bars will be cut through a cutting machine to achieve the required length.

[0003] Due to the high hardness of stainless steel bars, the blades on the cutting machine are used to cut stainless steel bars for a long time, and the blades are severely worn. The blades of the cutting machine need to be replaced regularly.

[0004] At present, the cutting machine includes a cutting machine body, a cutting motor, a blade and a locking nut. The cutting motor is arranged on the cutting machine body, the blade is sleeved on the output shaft of the cutting motor, the locking nut is threadedly connected to the output shaft of the cutting motor, and the locking nut abuts against the blade.

[0005] When the staff needs to replace the blade, the staff needs to hold the blade with one hand to limit the rotation of the blade relative to the cutting machine body, and then use the other hand to use a tool to unscrew the locking nut from the output shaft of the cutting motor, and then replace the new blade. Since the staff needs to touch the blade with their hands and control the force on the blade, the staff is easily cut by the blade during operation, and the safety is not high. Utility Model Content

[0006] In order to improve the safety of a bar cutting machine when replacing a blade, the present application provides a bar cutting machine with high safety.

[0007] The present application provides a highly safe bar cutting machine, which adopts the following technical solution:

[0008] It includes a cutting frame, a cutting motor, a cutting blade, a mounting member and a limiting component, wherein the cutting motor is arranged on the cutting frame, and the limiting component includes a limiting disk, a limiting block and a retaining member, wherein the limiting disk is arranged on the output shaft of the cutting motor, and the limiting block is slidably connected to the cutting frame along a direction approaching or moving away from the limiting disk, and the retaining member is used for the limiting block to keep abutting against the limiting disk, and the cutting blade is used for being sleeved on the output shaft of the cutting motor, and the mounting member is used for installing the cutting blade on the output shaft of the cutting motor.

[0009] By adopting the above technical solution, when the staff needs to replace the cutting blade, the staff can move the limiting block, and the limiting block abuts against the limiting disk. The retaining member ensures that the limiting block always remains abutted against the limiting disk. At this point, the rotating shaft of the cutting motor cannot rotate relative to the cutting frame. The staff removes the cutting blade from the output shaft of the driving motor through the mounting member, and then sleeves the new cutting blade on the output shaft of the cutting motor. The new cutting blade is installed on the output shaft of the driving motor through the mounting member. The limiting assembly makes the output shaft of the driving motor unable to rotate, which is convenient for the staff to remove the cutting blade from the output shaft of the driving motor, thereby ensuring the safety of the staff.

[0010] Optionally, the limiting assembly includes two limiting blocks, which are distributed along the axial direction of the limiting disk, and the limiting blocks are slidably connected to the cutting frame along the axial direction of the limiting disk. The limiting assembly also includes a bidirectional screw, and the length direction of the bidirectional screw is parallel to the sliding direction of the limiting block. The two limiting blocks are respectively threadedly connected to opposite threaded segments of the bidirectional screw.

[0011] By adopting the above technical solution, when the staff needs to replace the cutting blade, the staff can rotate the bidirectional screw, and the bidirectional screw drives the limiting block to move toward the direction of the limiting disk until the limiting disk abuts. The bidirectional screw makes the moving distance of the two limiting blocks the same, so that the force on both sides of the limiting disk is balanced, reducing the deformation of the limiting disk and extending the life of the limiting disk.

[0012] Optionally, the retaining member includes a worm wheel, a worm and a rotating disk, the worm wheel is coaxially arranged with the bidirectional screw, the worm wheel is arranged on one end of the bidirectional screw, the worm is rotatably connected to the cutting frame, the worm is meshed with the worm wheel, and the rotating disk is arranged on the worm.

[0013] By adopting the above technical solution, when the staff needs to replace the cutting blade, they can rotate the rotating disk, the rotating disk drives the worm to rotate, the worm drives the worm wheel to rotate, the worm wheel drives the bidirectional screw to rotate, and the bidirectional screw drives the two limiting blocks to abut against the two ends of the limiting disk. Since the worm wheel has a self-locking effect, the limiting disk remains in a state where it cannot rotate, and the output shaft of the cutting motor cannot rotate relative to the cutting frame.

[0014] Optionally, a plurality of snap-in grooves are provided on both end surfaces of the limiting disk, and the plurality of snap-in grooves are distributed circumferentially along the axis of the limiting disk. The snap-in grooves extend along the radial direction of the limiting disk, and the cross-section of the snap-in grooves in the extension direction is triangular. A plurality of snap-in blocks are provided on the limiting block, and the snap-in blocks are used to snap into the snap-in grooves.

[0015] By adopting the above technical solution, the clamping groove of the limiting disk cooperates with the clamping block of the limiting block, thereby increasing the contact area between the limiting disk and the limiting block, and increasing the friction between the limiting disk and the limiting block. The cross-section of the clamping groove is triangular, which facilitates guiding the clamping block to move toward the bottom of the clamping groove, thereby improving the coordination effect between the clamping block and the clamping groove.

[0016] Optionally, a feed rack for conveying rods is provided on the side of the cutting frame, and the cutting frame is rotatably connected to the feed rack, and a rotating component for driving the cutting frame to rotate is provided on the feed rack, and the rotating component includes a rotating motor, a first rotating gear and a second rotating gear, the first rotating gear is arranged on the rotating axis of the cutting frame, the rotating motor is arranged on the feed rack, the first rotating gear is arranged on the output shaft of the rotating motor, and the first rotating gear is meshed with the second rotating gear.

[0017] By adopting the above technical solution, the rod is moved on the feeding rack through the feeding assembly in the front sequence, and the staff can drive the rotating motor to start according to the length of the rod to be cut as needed. The rotating motor drives the second rotating gear to rotate, and the second rotating gear drives the first rotating gear to rotate. The first rotating gear drives the cutting frame to rotate, and the cutting frame will drive the cutting blade to move toward the direction of the rod until the rod is cut off. The rotating assembly has a simple structure and is easy for the staff to operate.

[0018] Optionally, the feed rack is also provided with a limit assembly for limiting the movement of the rod relative to the feed rack, the limit assembly includes an abutment plate, a first cylinder, a first limit plate, a second cylinder and a second limit plate, the abutment plate is arranged on the feed rack, the first cylinder is located above the rod, the first cylinder is arranged on the feed rack, the first limit plate is arranged on the piston rod of the first cylinder, the second cylinder is located on the side of the abutment plate away from the cutting frame, the second cylinder is arranged on the feed rack, and the second limit plate is arranged on the piston rod of the second cylinder.

[0019] By adopting the above technical solution, the limiting member is used to limit the transportation of the rod and define the position of the rod on the feeding rack; when the rod moves to the position of the required length on the feeding rack, the staff can operate the piston rod of the second cylinder to extend, and the piston rod of the second cylinder drives the second limiting plate to move until the rod is clamped between the second limiting plate and the abutment plate, and then the staff operates the piston rod of the first cylinder to extend, so that the first limiting plate moves toward the rod until it abuts against the highest point of the rod, and finally drives the cutting frame to rotate through the rotating assembly, and moves the cutting blade toward the rod until the rod is cut off.

[0020] Optionally, the mounting member includes an abutment plate and a locking nut, the abutment plate is arranged on the output shaft of the cutting motor, the locking nut is used to be threadedly connected to the output shaft of the cutting motor, and both sides of the cutting blade abut against the abutment plate and the locking nut respectively.

[0021] By adopting the above technical solution, when the cutting blade is sleeved on the output shaft of the cutting motor, the cutting blade abuts against the end face of the abutment plate. Then the staff threadably connects the locking nut to the output shaft of the cutting motor until the locking nut abuts against the cutting blade. The mounting structure is simple and easy for the staff to operate.

[0022] Optionally, a protective cover is provided on the cutting machine frame, and the worm gear and the worm wheel are both located inside the protective cover.

[0023] By adopting the above technical solution, metal chips will splash when the cutting blade cuts the rod, and the protective cover reduces the metal chips from entering between the worm wheel and the worm. The protective cover increases the service life of the worm wheel and the reliability of the retaining member.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. The limiting assembly is used to fix the output shaft of the cutting motor relative to the cutting frame when replacing the cutting blade, so that the locking nut can be screwed off the output shaft of the cutting motor without the worker touching the cutting blade;

[0026] 2. The retaining member is used to keep the limiting block in contact with the limiting disk, thereby improving the reliability of the limiting assembly;

[0027] 3. The limit assembly is used to limit the movement of the bar on the feed rack, so that the cutting blade can cut the bar accurately. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the structure of a rod cutting machine with high safety.

[0029] Figure 2 yes Figure 1 Schematic diagram of the structure of the cutting frame.

[0030] Figure 3 yes Figure 2 A cross-sectional view of the mounting block showing the retaining elements.

[0031] Figure 4 yes Figure 1 A cross-sectional view of the cutting blade is used to show the matching relationship between the mounting part and the cutting blade.

[0032] Figure 5 yes Figure 2A schematic diagram of the back of the center-cut frame is used to show the matching relationship of the rotating components.

[0033] Figure 6 yes Figure 1 The structural diagram of the middle feed rack is used to show the structure of the limit assembly.

[0034] : Illustrations: 1. cutting frame; 11. protective cover; 2. cutting motor; 3. cutting blade; 4. mounting member; 41. abutment plate; 42. locking nut; 5. limiting assembly; 51. limiting plate; 511. snap-in groove; 52. limiting block; 521. snap-in block; 53. retaining member; 531. worm gear; 532. worm; 533. rotating disk; 54. bidirectional screw; 55. mounting block; 551. mounting cavity; 6. feeding rack; 7. rotating assembly; 71. rotating motor; 72. first rotating gear; 73. second rotating gear; 74. matching member; 741. matching rod; 742. first matching block; 743. second matching block; 8. limiting assembly; 81. abutment plate; 82. first cylinder; 83. first limiting plate; 84. second cylinder; 85. second limiting plate. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-6 This application is described in further detail.

[0036] The present application embodiment discloses a rod cutting machine with high safety. Figure 1 and Figure 2 A high-safety bar cutting machine includes a cutting frame 1, a cutting motor 2, a cutting blade 3, a mounting part 4, a limiting component 5 and a feeding rack 6. The length direction of the feeding rack 6 is parallel to the length direction of the bar. The bar is driven by the equipment of the previous process to be transported on the feeding rack along the length direction of the feeding rack 6. The cutting frame 1 is located on one side of the feeding rack 6, and the cutting frame 1 is rotatably connected to the feeding rack 6 along the length direction of the bar.

[0037] refer to Figure 2 and Figure 3The cutting motor 2 is fixedly arranged on the cutting frame 1, and the output shaft of the cutting motor 2 is parallel to the length direction of the rod. The limiting assembly 5 includes a limiting disk 51, two limiting blocks 52, a retaining member 53, a bidirectional screw 54 and a mounting block 55. The limiting disk 51 is coaxially arranged with the output shaft of the cutting motor 2, and the limiting disk 51 is fixedly arranged on the output shaft of the cutting motor 2. The mounting block 55 is fixedly arranged on the cutting frame 1, and a mounting cavity 551 is opened on the side wall of the mounting block 55 facing the cutting frame 1. The two limiting blocks 52 are distributed along the axial direction of the limiting disk 51, and the two limiting blocks 52 are respectively located on the two side walls of the limiting disk 51. The limiting blocks 52 are located in the mounting cavity 551. The limiting blocks 52 are slidably connected to the mounting block 55 along the axial direction of the limiting disk 51. The length direction of the bidirectional screw 54 is parallel to the length direction of the limiting disk 51. The bidirectional screw 54 is rotatably connected to the mounting block 55, and the two limiting blocks 52 are respectively threadedly connected to the thread segments of the bidirectional screw 54 that rotate in different directions.

[0038] refer to Figure 2 and Figure 3 A plurality of snap-in grooves 511 are provided on both end surfaces of the limiting disk 51, and the plurality of snap-in grooves 511 are evenly distributed along the circumferential direction of the axis of the limiting disk 51. The snap-in grooves 511 extend along the radial direction of the limiting disk 51, and the cross-section of the snap-in grooves 511 along the extension direction is triangular. A plurality of snap-in blocks 521 are fixedly arranged on the limiting block 52, and the plurality of snap-in blocks 521 are evenly distributed along the axial direction of the limiting disk 51. The length direction of the limiting block 52 is parallel to the radial direction of the limiting disk 51, and the cross-section of the limiting block 52 is triangular. The snap-in grooves 511 are used for snapping in the snap-in blocks 521.

[0039] refer to Figure 2 and Figure 3 The retaining member 53 includes a worm wheel 531, a worm 532 and a rotating disk 533. The worm wheel 531 is coaxially arranged with the bidirectional screw 54. The worm wheel 531 is fixedly arranged on one end of the bidirectional screw 54. The worm 532 is rotatably connected to the cutting frame 1. The worm 532 is meshed with the worm wheel 531. One end of the worm 532 passes through the cutting frame 1. The rotating disk 533 is coaxially arranged with the worm 532. The rotating disk 533 is fixedly arranged on one end of the worm 532 passing through the cutting frame 1. A protective cover 11 is fixedly arranged on the cutting frame 1. The worm wheel 531 and the worm 532 are located in the protective cover 11.

[0040] refer to Figure 1 and Figure 4The mounting member 4 includes a contact plate 41 and a locking nut 42. The contact plate 41 is coaxially arranged with the output shaft of the cutting motor 2. The contact plate 41 is fixedly arranged on the output shaft of the cutting motor 2. The locking nut 42 is coaxially arranged with the output shaft of the cutting motor 2. The locking nut 42 is threadedly connected to the output shaft of the cutting motor 2. The cutting blade 3 is located between the contact plate 41 and the locking nut 42. The contact plate 41 and the locking nut 42 are respectively abutted against two sides of the cutting blade 3.

[0041] refer to Figure 2 and Figure 5 , a rotating assembly 7 for driving the cutting frame 1 is provided on the feeding rack 6, the rotating assembly 7 includes a rotating motor 71, a first rotating gear 72, a second rotating gear 73 and a matching piece 74, the first rotating gear 72 is coaxially arranged with the rotating axis of the cutting frame 1, the first rotating gear 72 is fixedly arranged on the cutting frame 1, the rotating motor 71 is fixedly arranged on the feeding rack 6, the second rotating gear 73 is coaxially arranged with the output shaft of the rotating motor 71, the second rotating gear 73 is fixedly arranged on the output shaft of the rotating motor 71, the matching piece 74 includes a matching rod 741, a first matching block 742 and a second matching block 743, the matching rod 741 is horizontally arranged, the length direction of the matching rod 741 is perpendicular to the transportation direction of the bar, the matching rod 741 is fixedly arranged on the feeding rack 6, the first matching block 742 is slidably connected to the matching rod 741 along the length direction of the matching rod 741, the second matching block 743 is slidably connected to the first matching block 742 along the vertical direction, and the second matching block 743 is rotatably connected to the cutting frame 1.

[0042] refer to Figure 1 and Figure 6 A limiting assembly 8 for limiting the movement of the bar relative to the feeding rack 6 is provided on the feeding rack 6. The limiting assembly 8 includes an abutment plate 81, a first cylinder 82, a first limiting plate 83, a second cylinder 84 and a second limiting plate 85. The abutment plate 81 is vertically arranged, and the abutment plate 81 is fixedly arranged on the feeding rack 6. The first cylinder 82 is located above the bar. The first cylinder 82 is vertically arranged, and the cylinder body of the first cylinder 82 is fixedly arranged on the feeding rack 6. The first limiting plate 83 is vertically arranged, and the upper end surface of the first limiting plate 83 is fixedly arranged on one end of the piston rod of the first cylinder 82. The second cylinder 84 is horizontally arranged, and the length direction of the second cylinder 84 is parallel to the length direction of the matching rod 741. The second cylinder 84 is located on the side of the abutment plate 81 away from the cutting machine frame 1. The second cylinder 84 is fixedly arranged on the feeding rack 6. The second limiting plate 85 is vertically arranged, and the end of the second limiting plate 85 away from the abutment plate 81 is fixedly arranged on the piston rod of the second cylinder 84.

[0043] The implementation principle of a highly safe rod cutting machine in the embodiment of the present application is as follows: when the cutting machine needs to cut rods, the piston rod of the first cylinder 82 and the piston rod of the second cylinder 84 are extended, so that the first limiting plate 83 abuts against the upper end surface of the rod, and the second limiting plate 85 and the abutting plate 81 abut against the two sides of the rod. After the position of the rod is limited, the rotating motor 71 drives the second rotating gear 73 to rotate, the second rotating gear 73 drives the first rotating gear 72 to rotate, and the first rotating gear 72 drives the cutting frame 1 to rotate, and the cutting motor 2 on the cutting frame 1 will drive the cutting blade 3 to rotate, and the cutting blade 3 cuts off the rod, and then the rotating motor 71 flips over, and the cutting blade 3 moves away from the rod.

[0044] When the cutting blade 3 needs to be replaced, the staff can rotate the rotating disk 533, the rotating disk 533 drives the worm 532 to rotate, the worm 532 drives the worm wheel 531 to rotate, the worm wheel 531 drives the bidirectional screw 54, and the bidirectional screw 54 drives the two limiting blocks 52 to move in the direction of the limiting disk 51 until the clamping block 521 on the limiting block 52 is clamped in the clamping groove 511 on the limiting disk 51. At this time, the limiting disk 51 is fixed relative to the cutting frame 1, and the output shaft of the cutting motor 2 cannot rotate. After that, the staff drives the locking nut 42 to disengage from the output shaft of the cutting motor 2 through a tool, and the staff can replace the The cutting blade 3 is taken out from the output shaft of the cutting motor 2. After replacing the new cutting blade 3, the locking nut 42 is threadedly connected to the output shaft of the cutting motor 2 until the locking nut 42 and the limiting disk 51 respectively abut against the two end surfaces of the cutting blade 3. Finally, the rotating disk 533 is rotated, and the rotating disk 533 drives the worm 532 to rotate, and the worm 532 drives the worm wheel 531 to rotate, and the worm wheel 531 drives the bidirectional screw 54 to rotate, and the bidirectional screw 54 drives the two limiting blocks 52 to move in the direction away from the limiting disk 51 until the clamping block 521 on the limiting block 52 is disengaged from the clamping groove 511 on the limiting disk 51.

[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A bar cutting machine with high safety, characterized by: The invention comprises a cutting frame (1), a cutting motor (2), a cutting blade (3), a mounting member (4) and a limiting assembly (5), wherein the cutting motor (2) is arranged on the cutting frame (1), the limiting assembly (5) comprises a limiting disk (51), a limiting block (52) and a retaining member (53), the limiting disk (51) is arranged on the output shaft of the cutting motor (2), the limiting block (52) is slidably connected to the cutting frame (1) in a direction approaching or moving away from the limiting disk (51), the retaining member (53) is used to keep the limiting block (52) abutting against the limiting disk (51), the cutting blade (3) is used to be sleeved on the output shaft of the cutting motor (2), and the mounting member (4) is used to mount the cutting blade (3) on the output shaft of the cutting motor (2).

2. A highly safe bar cutting machine according to claim 1, characterized in that: The limiting assembly (5) comprises two limiting blocks (52), the two limiting blocks (52) are distributed along the axial direction of the limiting disk (51), and the limiting blocks (52) are slidably connected to the cutting frame (1) along the axial direction of the limiting disk (51). The limiting assembly (5) further comprises a bidirectional screw (54), the length direction of the bidirectional screw (54) is parallel to the sliding direction of the limiting blocks (52), and the two limiting blocks (52) are respectively threadedly connected to opposite thread segments of the bidirectional screw (54).

3. A highly safe bar cutting machine according to claim 2, characterized in that: The retaining member (53) comprises a worm wheel (531), a worm (532) and a rotating disk (533); the worm wheel (531) is coaxially arranged with the bidirectional screw (54); the worm wheel (531) is arranged on one end of the bidirectional screw (54); the worm (532) is rotatably connected to the cutting machine frame (1); the worm (532) is meshed with the worm wheel (531); and the rotating disk (533) is arranged on the worm (532).

4. A highly safe bar cutting machine according to claim 2, characterized in that: A plurality of snap-in grooves (511) are provided on both end surfaces of the limiting disk (51), the plurality of snap-in grooves (511) are distributed circumferentially along the axis of the limiting disk (51), the snap-in grooves (511) extend in the radial direction of the limiting disk (51), and the cross-section of the snap-in grooves (511) in the extending direction is triangular. A plurality of snap-in blocks (521) are provided on the limiting block (52), and the snap-in blocks (521) are used to snap-in to the snap-in grooves (511).

5. A highly safe bar cutting machine according to claim 1, characterized in that: A feeding rack (6) for conveying rods is arranged on the side of the cutting frame (1); the cutting frame (1) is rotatably connected to the feeding rack (6); a rotating assembly (7) for driving the cutting frame (1) to rotate is arranged on the feeding rack (6); the rotating assembly (7) comprises a rotating motor (71), a first rotating gear (72) and a second rotating gear (73); the first rotating gear (72) is arranged on the rotating axis of the cutting frame (1); the rotating motor (71) is arranged on the feeding rack (6); the second rotating gear (73) is arranged on the output shaft of the rotating motor (71); and the first rotating gear (72) is meshed with the second rotating gear (73).

6. A highly safe bar cutting machine according to claim 5, characterized in that: The feed rack (6) is also provided with a limit assembly (8) for limiting the movement of the rod relative to the feed rack (6), the limit assembly (8) comprising an abutment plate (81), a first cylinder (82), a first limit plate (83), a second cylinder (84) and a second limit plate (85), the abutment plate (81) being provided on the feed rack (6), the first cylinder (82) being located above the rod, the first cylinder (82) being provided on the feed rack (6), the first limit plate (83) being provided on the piston rod of the first cylinder (82), the second cylinder (84) being located on a side of the abutment plate (81) away from the cutting machine frame (1), the second cylinder (84) being provided on the feed rack (6), and the second limit plate (85) being provided on the piston rod of the second cylinder (84).

7. A highly safe bar cutting machine according to claim 1, characterized in that: The mounting member (4) comprises an abutment plate (41) and a locking nut (42); the abutment plate (41) is arranged on the output shaft of the cutting motor (2); the locking nut (42) is used for being threadedly connected to the output shaft of the cutting motor (2); and two sides of the cutting blade (3) are respectively abutted against the abutment plate (41) and the locking nut (42).

8. A highly safe bar cutting machine according to claim 3, characterized in that: A protective cover (11) is provided on the cutting machine frame (1), and the worm wheel (531) and the worm gear (531) are both located inside the protective cover (11).

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