Induction type safety locking mechanism of a puncher and puncher

Abstract

The application provides an inductive safety locking mechanism of a puncher, which comprises a protective cover, a flap and a switch mechanism. The protective cover has an opening and covers a flywheel. The flap is hinged to the protective cover and can shield the opening. The switch mechanism comprises a proximity switch and a movable stopper. The proximity switch is fixedly installed on the protective cover, and the movable stopper is installed on the flap and is configured to be aligned with the proximity switch when the flap shields the opening. The application also provides a puncher comprising an inductive safety locking mechanism of a puncher and a puncher body. The inductive safety locking mechanism of a puncher is installed on the puncher body. The inductive safety locking mechanism of a puncher provided by the application effectively avoids the situation that the adjusting rod is forgotten on the flywheel through the design that the movable stopper is turned over by the flap to align with the proximity switch, and eliminates the safety hazard.

Description

Technical Field

[0001] This application relates to the field of safety protection technology, and in particular to an inductive safety locking mechanism for a heading machine and the heading machine itself. Background Technology

[0002] Screw heading machines (also known as cold heading machines) use cold heading technology to process metal wire into screw heads and shanks at room temperature, offering high efficiency, precision, and material savings. A heading machine typically consists of a machine body, power transmission, feeding, shearing, heading, die, clutch and braking, lubrication and cooling systems. The flywheel, a crucial component of the power transmission system, stores inertial energy through high-speed rotation and releases it during heading, compensating for insufficient instantaneous motor output and ensuring stable forming force. Its large mass and rotational inertia also act as a buffer, reducing overall machine vibration. During die changes or maintenance, the flywheel can be manually rotated to drive the crankshaft, adjusting die position, setting tools, or troubleshooting. Manually rotating the flywheel usually requires inserting an adjusting rod into a socket on the flywheel's outer circumference. However, during operation, workers may forget the adjusting rod on the flywheel and start the machine directly, causing the flywheel to rotate at high speed, posing a significant safety hazard. Summary of the Invention

[0003] The purpose of this application is to provide an inductive safety locking mechanism for a heading machine to solve the technical problem in the prior art where the adjusting rod is easily left on the flywheel.

[0004] To achieve the above objectives, the technical solution adopted in this application is: to provide an inductive safety locking mechanism for a heading machine, comprising: A protective cover with an opening is fitted over the flywheel; A flap, hinged to the protective cover, is capable of concealing the opening; A switching mechanism comprising a proximity switch and a movable stop, the proximity switch being fixedly mounted on the protective cover, the movable stop being mounted on the flap and configured to align with the proximity switch when the flap covers the opening.

[0005] Optionally, the inductive safety locking mechanism of the heading machine further includes two fixed locking mechanisms, two sliding locking mechanisms, a lifting mechanism, a wheel cover, an arc adjustment mechanism, and a distance adjustment mechanism. Both fixed locking mechanisms are installed on the protective cover, and both sliding locking mechanisms are installed on the flip plate and configured to respectively lock onto the two fixed locking mechanisms. One of the sliding locking mechanisms is located between the movable stop and the flip plate. The lifting mechanism is installed between the two sliding locking mechanisms. The wheel cover is mounted on the outer periphery of the flywheel. The arc adjustment mechanism is installed on the wheel cover and used to adjust the arc of the wheel cover. The distance adjustment mechanism is installed between the lifting mechanism and the arc adjustment mechanism and used to adjust the distance between the lifting mechanism and the arc adjustment mechanism.

[0006] Optionally, the sliding latching mechanism includes two fixed blocks, multiple fixed guide rods, a slider, and a latching rod. The two fixed blocks are both installed on the flap, the multiple fixed guide rods are both installed between the two fixed blocks, the slider is sleeved on the multiple fixed guide rods and can slide along a first direction, and the latching rod is connected to the slider. The fixing and locking mechanism includes a first baffle, a second baffle, a sliding guide rod, a guide block, a guide surface, and a first elastic structure. The first baffle is connected to the protective cover. The sliding guide rod passes through the first baffle. The guide block is connected to one end of the sliding guide rod near the locking rod. The guide surface is formed on the guide block and configured to guide the guide block to move in a second direction via the slider or the locking rod. The first elastic structure is sleeved on the sliding guide rod and abuts against the first baffle and the guide block. The second baffle is connected to the protective cover and configured to lock the locking rod after the slider is locked between the guide block and the second baffle.

[0007] Optionally, the sliding latching mechanism further includes a plurality of second elastic structures, which are respectively sleeved on a plurality of fixed guide rods and abut against the side of the slider facing the latching rod and the fixed block.

[0008] Optionally, the fixing and locking mechanism further includes a lever, which is connected to the end of the sliding guide rod away from the guide block.

[0009] Optionally, the distance adjustment mechanism includes a first fixed plate; The lifting mechanism includes two fixed frames, two telescopic rods, and two connecting rods. Both fixed frames are mounted on the first fixed plate. The telescopic rods are installed between the two fixed frames and the flip plate. The connecting rods are hinged between the two sliders and the two fixed frames.

[0010] Optionally, the distance adjustment mechanism includes a first fixed plate, a second fixed plate, two first hinge frames, two second hinge frames, and a locking assembly. The first fixed plate is installed on the lifting mechanism, the second fixed plate is installed on the arc adjustment mechanism, the two first hinge frames are hinged to the first fixed plate, the two second hinge frames are hinged to the second fixed plate, and are respectively hinged to the two first hinge frames. The locking assembly is hinged between the two first hinge frames and the two second hinge frames, and together with the two first hinge frames and the first fixed plate, forms a trapezoidal structure.

[0011] Optionally, the locking assembly includes two locking blocks, a locking bolt, a first locking nut, and two second locking nuts. The locking blocks are hinged between the first hinge frame and the second hinge frame. The locking bolt passes through the two locking blocks. The first locking nut is screwed onto the locking bolt and is configured to fix one of the locking blocks through the head of the locking bolt. The two second locking nuts are screwed onto the locking bolt and are located on both sides of the other locking block, respectively.

[0012] Optionally, the wheel cover includes a fixed plate and two movable plates, the fixed plate is mounted on the distance adjustment mechanism, and the two movable plates are hinged to both ends of the fixed plate along a first direction; The arc adjustment mechanism includes two adjustment components and two hinge rods. The two adjustment components are installed on the distance adjustment mechanism and are arranged in a one-to-one correspondence with the two moving plates. The hinge rods are hinged between the moving plates and the adjustment components.

[0013] Optionally, the adjustment assembly includes two fixed seats, at least one limiting rod, a screw, a moving block, and a handle. Both fixed seats are mounted on the distance adjustment mechanism, at least one limiting rod is mounted between the two fixed seats, the screw is mounted between the two fixed seats and is rotatable about a first direction, the moving block is sleeved on at least one limiting rod and the screw and screwed to the screw, and the handle is mounted on the end of the screw away from the fixed plate.

[0014] This application also provides a heading machine, including an inductive safety locking mechanism and a heading machine body, wherein the inductive safety locking mechanism is installed on the heading machine body. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A perspective view of the overall structure of an inductive safety locking mechanism for a heading machine provided in Embodiment 1 of this application; Figure 2 This is a perspective view of the overall structure of an inductive safety locking mechanism for a heading machine provided in Embodiment 2 of this application; Figure 3 This is a first-view internal perspective view of an inductive safety locking mechanism for a heading machine provided in Embodiment 2 of this application. Figure 4 This is a second-view internal perspective view of an inductive safety locking mechanism for a heading machine provided in Embodiment 2 of this application; Figure 5 for Figure 3 A magnified view of a section at point A in the middle; Figure 6 for Figure 4 A magnified view of a section at point B in the middle.

[0017] The following are the labeling elements in the figure: 1. Protective cover; 2. Flip-board; 3. Switching mechanism; 31. Proximity switch; 32. Moving stop; 4. Fixed locking mechanism; 41. First baffle; 42. Second baffle; 43. Sliding guide rod; 44. Guide block; 45. Guide surface; 46. First elastic structure; 47. Pulley; 5. Sliding latching mechanism; 51. Fixing block; 52. Fixing guide rod; 53. Slider; 54. Latching rod; 55. Second elastic structure; 6. Lifting mechanism; 61. Fixed frame; 62. Telescopic rod; 63. Connecting rod; 7. Wheel cover; 71. Fixed plate; 72. Moving plate; 8. Curvature adjustment mechanism; 81. Adjustment assembly; 811. Fixed base; 812. Limiting rod; 813. Screw; 814. Moving block; 815. Handle; 82. Hinge rod; 9. Distance adjustment mechanism; 91. First fixed plate; 92. Second fixed plate; 93. First hinge frame; 94. Second hinge frame; 95. Locking assembly; 951. Locking block; 952. Locking bolt; 953. First locking nut; 954. Second locking nut. Detailed Implementation

[0018] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0019] It should be noted that when a component is referred to as being "mounted to," "fixed to," or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0020] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0022] Example 1 like Figure 1 As shown, this application provides an inductive safety locking mechanism for a heading machine, including a protective cover 1, a flap 2, and a switching mechanism 3. The protective cover 1 has an opening and covers the flywheel. The flap 2 is hinged to the protective cover 1 and can cover the opening. The switching mechanism 3 includes a proximity switch 31 and a movable stop 32. The proximity switch 31 is fixedly mounted on the protective cover 1, and the movable stop 32 is mounted on the flap 2 and configured to align with the proximity switch 31 when the flap 2 covers the opening.

[0023] This application provides an inductive safety locking mechanism for a heading machine. Before starting, the operator needs to flip the flap 2 to align the movable stop 32 with the proximity switch 31 to connect the power. During this process, if the adjusting rod is inserted into the outer circumference of the flywheel, the flap 2 cannot cover the opening, meaning the movable stop 32 cannot be aligned with the proximity switch 31, and thus the power cannot be connected. In summary, the design of using the flap 2 to flip the movable stop 32 to align with the proximity switch 31 effectively prevents the adjusting rod from being left on the flywheel, eliminating safety hazards.

[0024] Example 2 This embodiment is basically the same as Embodiment 1, except that: Figures 1 to 6 As shown, an inductive safety locking mechanism for a heading machine further includes two fixed locking mechanisms 4, two sliding locking mechanisms 5, a lifting mechanism 6, a wheel cover 7, an arc adjustment mechanism 8, and a distance adjustment mechanism 9. The two fixed locking mechanisms 4 are both installed on the protective cover 1, and the two sliding locking mechanisms 5 are both installed on the flip plate 2 and configured to respectively lock onto the two fixed locking mechanisms 4. One of the sliding locking mechanisms 5 is located between the movable stop 32 and the flip plate 2. The lifting mechanism 6 is installed between the two sliding locking mechanisms 5. The wheel cover 7 is mounted on the outer periphery of the flywheel. The arc adjustment mechanism 8 is installed on the wheel cover 7 and used to adjust the arc of the wheel cover 7. The distance adjustment mechanism 9 is installed between the lifting mechanism 6 and the arc adjustment mechanism 8 and used to adjust the distance between the lifting mechanism 6 and the arc adjustment mechanism 8.

[0025] It should be noted that the "first direction" above and below refers to the bidirectional direction of the shortest connection line between the two fixed locking mechanisms 4, specifically as follows: Figure 1 The X-axis is shown in the diagram. The second direction, above and below, refers to the bidirectional direction of the rotation axis of the flap 2, specifically as follows: Figure 1 The Y-axis is shown below. The third direction below refers to the bidirectional direction of the normal to the side of the protective cover 1 where the opening is located, specifically as follows: Figure 1 The Z-axis is shown in the figure.

[0026] This design, with the wheel cover 7 in place, ensures a close fit to the outer periphery of the flywheel. Compared to using the flap 2 directly, it avoids situations where the adjusting rod, due to its short length, cannot contact the flap 2, effectively detecting whether an adjusting rod is inserted into the outer periphery of the flywheel. After the flap 2 covers the opening, the flap 2 is stably secured to the protective cover 1 through the interlocking of two fixed locking mechanisms 4 and two sliding locking mechanisms 5. This prevents external debris from entering the protective cover 1 and splashing during flywheel operation, effectively avoiding safety hazards. Furthermore, when the flap 2 is secured to the protective cover 1, the two sliding locking mechanisms 5, via the lifting mechanism 6, can move the wheel cover 7 away from the flywheel in a third direction, preventing the wheel cover 7 from being too close to the flywheel and affecting its operation. The curvature adjustment mechanism 8 allows for adjustment of the curvature of the wheel cover 7, making it suitable for flywheels of different diameters and improving its applicability. The distance adjustment mechanism 9 can adjust the distance between the wheel cover 7 and the flip plate 2, making it suitable for flywheels of different heights and helping to further improve its applicability.

[0027] In one embodiment of this application, please refer to Figures 1 to 6 The sliding latching mechanism 5 includes two fixed blocks 51, multiple fixed guide rods 52, a slider 53, and a latching rod 54. The two fixed blocks 51 are both installed on the flip plate 2, the multiple fixed guide rods 52 are both installed between the two fixed blocks 51, the slider 53 is sleeved on the multiple fixed guide rods 52 and can slide along the first direction, and the latching rod 54 is connected to the slider 53. The fixed locking mechanism 4 includes a first baffle 41, a second baffle 42, a sliding guide rod 43, a guide block 44, a guide surface 45, and a first elastic structure 46. The first baffle 41 is connected to the protective cover 1. The sliding guide rod 43 passes through the first baffle 41. The guide block 44 is connected to one end of the sliding guide rod 43 near the locking rod 54. The guide surface 45 is opened on the guide block 44 and is configured to guide the guide block 44 to move in a second direction via the slider 53 or the locking rod 54. The first elastic structure 46 is sleeved on the sliding guide rod 43 and abuts against the first baffle 41 and the guide block 44. The second baffle 42 is connected to the protective cover 1 and is configured to lock the locking rod 54 after the slider 53 is locked between the guide block 44 and the second baffle 42.

[0028] This configuration, with the action of multiple fixed guide rods 52, guides the slider 53, allowing it to move only in the first direction, thus improving its stability in that direction. The sliding guide rod 43 and the protective cover 1 guide the guide block 44, allowing it to move only in the second direction, further improving its stability. Under the action of the guide surface 45, the slider 53 and the locking rod 54 allow the guide block 44 to move in the second direction, thereby locking the slider 53 between the guide block 44 and the second baffle 42. Furthermore, after the slider 53 is locked between the guide block 44 and the second baffle 42, the locking rod 54 engages with the second baffle 42, thus locking the flap 2 against the protective cover 1, preventing the flap 2 from rotating during flywheel operation. Under the action of the first elastic structure 46, after the guide block 44 moves toward the first baffle 41 in the second direction, the guide block 44 can be automatically reset in the second direction, which is convenient to use. It can also stably lock the slider 53 between the guide block 44 and the second baffle 42, which can prevent the locking rod 54 from coming off the second baffle 42 and causing the flip plate 2 to become loose.

[0029] Optionally, the first elastic structure 46 is configured as a spring or a sheet.

[0030] In one embodiment of this application, please refer to the following: Figures 1 to 6 The sliding snap-fit ​​mechanism 5 also includes a plurality of second elastic structures 55, which are respectively sleeved on a plurality of fixed guide rods 52 and abut against the side of the slider 53 facing the snap-fit ​​rod 54 and the fixed block 51.

[0031] With this configuration, when the guide block 44 releases its grip on the slider 53, the slider 53 can be automatically reset along the first direction through multiple second elastic structures 55, and the gripping rod 54 can automatically disengage from the second baffle 42, making it convenient to use and easy to flip the flip plate 2.

[0032] Optionally, the second elastic structure 55 is configured as a spring or a sheet.

[0033] In one embodiment of this application, see reference Figures 1 to 6 The fixed locking mechanism 4 also includes a lever 47, which is connected to the end of the sliding guide rod 43 away from the guide block 44.

[0034] This design, under the action of the lever 47, limits the sliding guide rod 43, preventing it from moving excessively in the second direction under the elastic action of the first elastic structure 46. This avoids interference between the guide block 44 and the slider 53, preventing the slider 53 from failing to engage between the guide block 44 and the second baffle 42. Furthermore, the lever 47 facilitates the operation of the sliding guide rod 43, improving ease of use.

[0035] In one embodiment of this application, please refer to Figures 1 to 6 The distance adjustment mechanism 9 includes a first fixed plate 91. The lifting mechanism 6 includes two fixed frames 61, two telescopic rods 62 and two connecting rods 63. Both fixed frames 61 are installed on the first fixed plate 91. Telescopic rods 62 are installed between the two fixed frames 61 and the flip plate 2. Connecting rods 63 are hinged between the two sliders 53 and the two fixed frames 61.

[0036] With this configuration, when the flap 2 is attached to the protective cover 1, the operator moves the two sliders 53 in opposite directions along the first direction. Through the two sliders 53, two connecting rods 63, two fixing brackets 61, and two telescopic rods 62, the wheel cover 7 can move towards the opening in the third direction, meaning the wheel cover 7 can separate from the flywheel surface, preventing it from affecting flywheel operation and facilitating use. The two telescopic rods 62 guide the movement of the two fixing brackets 61, ensuring they can only move in the third direction, thus improving their stability in that direction. Furthermore, the telescopic rods 62 prevent interference with the movement of the fixing brackets 61 in the third direction.

[0037] In one embodiment of this application, please refer to the following: Figures 1 to 6 The distance adjustment mechanism 9 includes a first fixed plate 91, a second fixed plate 92, two first hinge frames 93, two second hinge frames 94, and a locking assembly 95. The first fixed plate 91 is installed on the lifting mechanism 6, and the second fixed plate 92 is installed on the arc adjustment mechanism 8. The two first hinge frames 93 are hinged to the first fixed plate 91, and the two second hinge frames 94 are hinged to the second fixed plate 92 and respectively hinged to the two first hinge frames 93. The locking assembly 95 is hinged between the two first hinge frames 93 and the two second hinge frames 94, and together with the two first hinge frames 93 and the first fixed plate 91, it forms a trapezoidal structure, and together with the two second hinge frames 94 and the second fixed plate 92, it forms a trapezoidal structure.

[0038] It should be noted that the distance between the flywheel and the wheel cover 7 varies depending on the flywheel diameter and the flywheel's installation position within the protective cover 1.

[0039] With this configuration, under the action of the locking assembly 95, the two first hinge frames 93 can rotate towards each other or away from each other around the second direction, and the two second hinge frames 94 can also rotate towards each other or away from each other around the second direction, thereby adjusting the distance between the first fixed plate 91 and the second fixed plate 92, and thus adjusting the position of the wheel cover 7 in the third direction, which has a wide range of applications.

[0040] In one embodiment of this application, please refer to the following: Figures 1 to 6 The locking assembly 95 includes two locking blocks 951, a locking bolt 952, a first locking nut 953, and two second locking nuts 954. The locking blocks 951 are hinged between the first hinge frame 93 and the second hinge frame 94. The locking bolt 952 passes through the two locking blocks 951. The first locking nut 953 is screwed to the locking bolt 952 and is configured to fix one of the locking blocks 951 through the head of the locking bolt 952. The two second locking nuts 954 are screwed to the locking bolt 952 and are located on both sides of the other locking block 951, respectively.

[0041] This configuration, through the combined action of the locking bolt 952, the first locking nut 953, and the two second locking nuts 954, secures the two locking blocks 951, preventing them from moving relative to each other. This, in turn, prevents the first fixing plate 91 and the second fixing plate 92 from moving relative to each other, effectively securing the wheel cover 7. By adjusting the positions of the two second locking nuts 954 on the locking bolt 952, the distance between the two locking blocks 951 can be adjusted, thereby adjusting the distance between the first fixing plate 91 and the second fixing plate 92.

[0042] In one embodiment of this application, see reference Figures 1 to 6 The wheel cover 7 includes a fixed plate 71 and two movable plates 72. The fixed plate 71 is mounted on the distance adjustment mechanism 9, and the two movable plates 72 are hinged to both ends of the fixed plate 71 along a first direction. The arc adjustment mechanism 8 includes two adjustment components 81 and two hinge rods 82. The two adjustment components 81 are mounted on the distance adjustment mechanism 9 and are arranged in a one-to-one correspondence with the two movable plates 72. The movable plates 72 and the adjustment components 81 are all hinged to each other by a hinge rod 82.

[0043] With this configuration, under the action of the adjusting component 81 and the two hinge rods 82, the two moving plates 72 can rotate relative to the fixed plate 71 in the second direction, either facing each other or in opposite directions, thereby adjusting the angle between the two moving plates 72 to accommodate flywheels of different diameters, thus having a wide range of applications.

[0044] In one embodiment of this application, please refer to Figures 1 to 6The adjustment assembly 81 includes two fixed seats 811, at least one limiting rod 812, a screw 813, a moving block 814, and a handle 815. Both fixed seats 811 are mounted on the distance adjustment mechanism 9. At least one limiting rod 812 is mounted between the two fixed seats 811. The screw 813 is mounted between the two fixed seats 811 and is rotatable about a first direction. The moving block 814 is sleeved on at least one limiting rod 812 and the screw 813 and screwed to the screw 813. The handle 815 is mounted on the end of the screw 813 away from the fixed plate 71.

[0045] This configuration allows the position of the moving block 814 in the first direction to be adjusted by rotating the screw 813. With the assistance of the hinge rod 82, the angle between the moving plate 72 and the fixed plate 71 can also be adjusted. The limiting rod 812 guides the movement of the moving block 814, enabling it to move along the first direction and improving its stability. The handle 815 facilitates the operator's rotation of the screw 813, enhancing ease of use.

[0046] The working principle of the inductive safety locking mechanism for a heading machine provided in this application is as follows: During installation, depending on the flywheel diameter, the screw 813 allows the two moving blocks 814 to move towards each other in the first direction. Under the action of the two hinge rods 82, the angle between the two moving plates 72 decreases, making it suitable for flywheels with smaller diameters. Conversely, the screw 813 increases the angle between the two moving plates 72, making it suitable for flywheels with larger diameters. Depending on the flywheel's position, the operator moves the two second locking nuts 954 away from the first locking nut 953, increasing the distance between the two locking blocks 951. Through the first hinge bracket 93 and the second hinge bracket 94, the distance between the first fixed plate 91 and the second fixed plate 92 increases, thereby increasing the distance between the wheel cover 7 and the flip plate 2. Conversely, moving them away from each other decreases the distance between the wheel cover 7 and the flip plate 2.

[0047] After the flywheel is adjusted, the operator manually flips the flap 2 so that it rotates towards the flywheel. When the adjusting rod is inserted into the flywheel surface, the wheel cover 7 cannot fit against the flywheel, meaning the flap 2 cannot fit against the protective cover 1. The operator removes the adjusting rod, and the flap 2 fits against the protective cover 1. After the flap 2 fits against the protective cover 1, the operator manually moves the two sliders 53 in opposite directions along the first direction until the sliders 53 contact the guide block 44. While the two sliders 53 move in opposite directions along the first direction, the two connecting rods 63 and the two fixing brackets 61 move towards the opening in the third direction, the two telescopic rods 62 gradually retract, and the wheel cover 7 gradually moves away from the flywheel in the third direction. Under the action of the sliders 53, the guide block 44 moves towards the first baffle 41 in the second direction until the sliders 53 move between the guide block 44 and the second baffle 42 in the first direction. At this time, the locking rod 54 passes through the second baffle 42, and the first elastic structure 46 drives the guide block 44 to move in the second direction away from the first baffle 41. The slider 53 is locked between the guide block 44 and the second baffle 42. The movable stop 32 can also be aligned with the proximity switch 31, so that the heading machine can be powered on and started.

[0048] When flywheel adjustment is needed, the operator pulls the two levers 47, which, via the sliding guide rod 43, causes the guide block 44 to move towards the first baffle 41 in the second direction until the guide block 44 and the slider 53 are completely separated. Under the action of the second elastic structure 55, the slider 53 gradually moves away from the second baffle 42 in the first direction, and the locking rod 54 disengages from the second baffle 42 until the slider 53 moves to the side of the guide block 44 facing away from the second baffle 42. The operator releases the levers 47, and under the action of the first elastic structure 46, the levers 47 automatically reset. At this point, the operator can flip the flip plate 2 and adjust the flywheel using the adjusting rod.

[0049] This application also provides a heading machine, including an inductive safety locking mechanism and a heading machine body, wherein the inductive safety locking mechanism is installed on the heading machine body.

[0050] The heading machine provided in this application has an inductive safety locking mechanism that effectively improves safety performance and is easy to use.

[0051] One or more embodiments in this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of this application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments in this application should be included within the protection scope of this application.

Claims

1. An inductive safety locking mechanism for a heading machine, characterized in that, include: A protective cover with an opening is fitted over the flywheel; A flap, hinged to the protective cover, is capable of concealing the opening; A switching mechanism includes a proximity switch and a movable stop. The proximity switch is fixedly mounted on the protective cover, and the movable stop is mounted on the flap and configured to align with the proximity switch when the flap covers the opening. The inductive safety locking mechanism of the heading machine also includes two fixed locking mechanisms, two sliding locking mechanisms, a lifting mechanism, a wheel cover, an arc adjustment mechanism, and a distance adjustment mechanism. Both fixed locking mechanisms are mounted on the protective cover, and both sliding locking mechanisms are mounted on the flap and configured to engage with the two fixed locking mechanisms respectively. One sliding locking mechanism is located between the movable stop and the flap. The lifting mechanism is mounted between the two sliding locking mechanisms. The wheel cover is mounted on the outer periphery of the flywheel. The arc adjustment mechanism is mounted on the wheel cover and used to adjust the arc of the wheel cover. The distance adjustment mechanism is mounted between the lifting mechanism and the arc adjustment mechanism and used to adjust the distance between the lifting mechanism and the arc adjustment mechanism.

2. The inductive safety locking mechanism of a heading machine as described in claim 1, characterized in that, The sliding latching mechanism includes two fixed blocks, multiple fixed guide rods, a slider, and a latching rod. The two fixed blocks are both installed on the flap, the multiple fixed guide rods are both installed between the two fixed blocks, the slider is sleeved on the multiple fixed guide rods and can slide along a first direction, and the latching rod is connected to the slider. The fixing and locking mechanism includes a first baffle, a second baffle, a sliding guide rod, a guide block, a guide surface, and a first elastic structure. The first baffle is connected to the protective cover. The sliding guide rod passes through the first baffle. The guide block is connected to one end of the sliding guide rod near the locking rod. The guide surface is formed on the guide block and configured to guide the guide block to move in a second direction via the slider or the locking rod. The first elastic structure is sleeved on the sliding guide rod and abuts against the first baffle and the guide block. The second baffle is connected to the protective cover and configured to lock the locking rod after the slider is locked between the guide block and the second baffle.

3. The inductive safety locking mechanism of a heading machine as described in claim 2, characterized in that, The sliding latching mechanism further includes a plurality of second elastic structures, which are respectively sleeved on a plurality of fixed guide rods and abut against the side of the slider facing the latching rod and between the fixed block.

4. The inductive safety locking mechanism of a heading machine as described in claim 2, characterized in that, The fixed locking mechanism further includes a lever, which is connected to the end of the sliding guide rod away from the guide block.

5. The inductive safety locking mechanism of a heading machine as described in claim 2, characterized in that, The distance adjustment mechanism includes a first fixed plate; The lifting mechanism includes two fixed frames, two telescopic rods, and two connecting rods. Both fixed frames are mounted on the first fixed plate. The telescopic rods are installed between the two fixed frames and the flip plate. The connecting rods are hinged between the two sliders and the two fixed frames.

6. The inductive safety locking mechanism of a heading machine as described in claim 1, characterized in that, The distance adjustment mechanism includes a first fixed plate, a second fixed plate, two first hinge frames, two second hinge frames, and a locking assembly. The first fixed plate is installed on the lifting mechanism, and the second fixed plate is installed on the arc adjustment mechanism. The two first hinge frames are hinged to the first fixed plate, and the two second hinge frames are hinged to the second fixed plate and respectively hinged to the two first hinge frames. The locking assembly is hinged between the two first hinge frames and the two second hinge frames, and together with the two first hinge frames and the first fixed plate, forms a trapezoidal structure.

7. The inductive safety locking mechanism of a heading machine as described in claim 6, characterized in that, The locking assembly includes two locking blocks, a locking bolt, a first locking nut, and two second locking nuts. The locking blocks are hinged between the first hinge frame and the second hinge frame. The locking bolt passes through the two locking blocks. The first locking nut is screwed onto the locking bolt and is configured to fix one of the locking blocks through the head of the locking bolt. The two second locking nuts are screwed onto the locking bolt and are located on both sides of the other locking block, respectively.

8. The inductive safety locking mechanism of a heading machine as described in claim 1, characterized in that, The wheel cover includes a fixed plate and two movable plates. The fixed plate is mounted on the distance adjustment mechanism, and the two movable plates are hinged to both ends of the fixed plate along a first direction. The arc adjustment mechanism includes two adjustment components and two hinge rods. The two adjustment components are installed on the distance adjustment mechanism and are arranged in a one-to-one correspondence with the two moving plates. The hinge rods are hinged between the moving plates and the adjustment components. The adjustment assembly includes two fixed seats, at least one limiting rod, a screw, a moving block, and a handle. Both fixed seats are mounted on the distance adjustment mechanism. At least one limiting rod is mounted between the two fixed seats. The screw is mounted between the two fixed seats and is rotatable about a first direction. The moving block is sleeved on at least one limiting rod and the screw and screwed to the screw. The handle is mounted on the end of the screw away from the fixed plate.

9. A heading machine, characterized in that, The invention includes an inductive safety locking mechanism for a heading machine as described in any one of claims 1-8 and a heading machine body, wherein the inductive safety locking mechanism for the heading machine is installed on the heading machine body.

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