Grinding machine replacing and resetting device of SD5 tobacco cutter

Abstract

The invention relates to the technical field of tobacco processing equipment, and discloses a grinding machine replacing and resetting device of an SD5 tobacco cutter, which comprises abutting plates symmetrically arranged on the outer sides of two fixing plates, abutting parts are arranged on the abutting plates, driving parts are respectively arranged between the two fixing plates and a base, and supporting assemblies are arranged on the two sides of the base. The supporting assembly has an idle state and a working state, when the supporting assembly is in the idle state, the supporting assembly does not make contact with the abutting plate, a power assembly used for switching the state of the supporting assembly is arranged on the base, and when the grinding machine swings to a preset replacement position, the power assembly switches the supporting assembly from the idle state to the working state. When the supporting assembly is in the working state, the supporting assembly is located at the position corresponding to the abutting part, so that the abutting part can abut against the supporting assembly. The problems that in the prior art, when a grinding wheel is replaced, the grinding machine swings to the replacement position, time and labor are wasted, efficiency is low, the grinding machine is inconvenient to fix at the replacement position, and potential safety hazards exist are solved.

Description

Technical Field

[0001] The invention relates to the technical field of tobacco processing equipment, and in particular to a grinding wheel replacement and resetting device for an SD5 shredder. Background Art

[0002] In the tobacco industry, the function of the shredder is to cut tobacco leaves and stems into shredded leaves and stems of a width that meets the requirements of the shredding process specifications. It generally includes a feeding system, a knife roller system, a knife sharpening system, a transmission system, etc. The SD5 shredder is a new type of shredder with a flexible processing concept launched by Garbuio, Italy, and is one of the main equipment for tobacco shredding production. The knife sharpening system is responsible for maintaining the sharpness of the shredding blade, thereby ensuring the quality and efficiency of shredding. The grinder, as one of the key components of the knife sharpening system, is installed upside down on the equipment through a base. When the grinder is in the operating position, it tilts from top to bottom toward the inside of the equipment. It is usually appropriate to have an angle of 15-20° between the axis of the grinder and the vertical direction.

[0003] Grinding the grinding wheel will cause the grinding wheel to wear continuously. Generally, the grinding wheel of the wire cutter needs to be replaced after 70-80 hours of continuous operation. The SD5 wire cutter has fixed plates symmetrically arranged on both sides of the grinding wheel machine, and mounting grooves are opened on the base corresponding to the fixed plates. Pneumatic springs are respectively arranged between the fixed plates on both sides of the grinding wheel machine and the side walls of the mounting grooves of the base. When replacing the grinding wheel, loosen the locking parts, and the worker manually pulls the grinding wheel machine out of the base. The grinding wheel machine swings to the outside of the equipment and is assisted by the pneumatic spring to support the positioning. The replacement position should be 35-40° between the axis of the grinding wheel machine and the vertical direction. Finally, use appropriate tools (such as wrenches) to fix the adjusted position to ensure that the grinding wheel machine remains stable during the replacement process.

[0004] The prior art has the following technical defects: 1. The worker manually operates the grinding machine with the help of pneumatic springs to pull it out of the base. It takes time and effort to swing the grinding machine to the replacement position, and the efficiency is low.

[0005] 2. It is difficult to control the angle of the grinding machine when it swings to the replacement position. After the grinding machine is pulled out, its angle needs to be adjusted, which is troublesome to adjust.

[0006] 3. Due to the heavy weight of the grinding machine (the weight of the grinding machine of the SD5 wire cutting machine is usually 70KG), it is troublesome to use other tools to fix the adjusted position, and there are safety hazards. Summary of the invention

[0007] In view of this, the purpose of the present invention is to provide a grinding wheel replacement and resetting device for an SD5 wire cutting machine to solve the problems in the prior art that when replacing the grinding wheel, it is time-consuming and laborious to swing the grinding wheel machine to the replacement position, the efficiency is low, and it is inconvenient to fix the grinding wheel machine at the replacement position, which poses a safety hazard.

[0008] The present invention solves the above technical problems through the following technical means: a grinding wheel replacement and reset device for an SD5 wire cutting machine, applied to the grinding wheel of the SD5 wire cutting machine, the grinding wheel replacement and reset device includes abutment plates symmetrically arranged on the outer sides of the two fixed plates, abutment parts are arranged on the abutment plates, driving parts for driving the grinding wheel to swing are respectively arranged between the two fixed plates and the base, support assemblies are arranged corresponding to the abutment plates on both sides of the base, the support assemblies have an idle state and a working state, when the support assembly is in the idle state, the support assembly is not in contact with the abutment plates, a power assembly for switching the state of the support assembly is arranged on the base, when the grinding wheel machine swings to a preset replacement position, the power assembly switches the support assembly from the idle state to the working state, when the support assembly is in the working state, the support assembly is located at the position corresponding to the abutment part, so that the abutment part can abut on the support assembly.

[0009] Furthermore, the driving member includes a telescopic member, one end of the telescopic member is hinged to the base, the telescopic end of the telescopic member is hinged to the fixed plate, and the hinge axis between the telescopic member and the base and the hinge axis between the telescopic member and the fixed plate are parallel.

[0010] Furthermore, the abutting plate is an arc-shaped plate, the outer arc surface of the abutting plate is located at the lower part of the abutting plate, and the outer arc surface of the abutting plate is sawtooth-shaped to form the abutting portion.

[0011] Furthermore, a reinforcing plate is obliquely arranged between the inner side of the abutting plate and the fixing plate.

[0012] Furthermore, the support assembly includes a support rod, which is located below the abutment plate. The middle part of the support rod is rotatably mounted on the side wall of the base. One end of the support rod is inclined from bottom to top toward the front end of the base to form an abutment end. The abutment end of the support rod can abut against the outer arc surface of the abutment plate. The other end of the support rod is inclined from bottom to top toward the rear end of the base to form a contact end. The power assembly is located at the rear end of the base and is respectively connected to the contact ends of the two support rods.

[0013] Furthermore, a first spring is provided between the support rod and the base, and the first spring enables the abutting end of the support rod to have a tendency to move away from the outer arc surface of the abutting plate.

[0014] Furthermore, the power assembly includes a mounting tube and a transmission rod, the mounting tube is vertically fixed on the rear end surface of the base, a cavity is provided inside the mounting tube, one end of the mounting tube is closed and the other end is open, an electromagnetic drive assembly is provided inside the mounting tube, the transmission rod is located at the open end of the mounting tube, both ends of the transmission rod are respectively connected to the contact ends of the two support rods, and one end of the electromagnetic drive assembly extends out of the open end of the mounting tube and is connected to the transmission rod.

[0015] Furthermore, the electromagnetic drive assembly includes an electromagnet and a moving iron core, the electromagnet is arranged at the closed end of the mounting tube, the moving iron core is movably arranged in the cavity of the mounting tube and one end of the moving iron core extends out of the mounting tube and is fixedly connected to the transmission rod, an annular groove is opened on the cavity wall of the cavity, an abutment is arranged on the outer wall of the moving iron core, a second spring is mounted on the surface of the moving iron core, the abutment and the second spring are both located in the annular groove, one end of the second spring is fixedly connected to the abutment, and the other end is fixedly connected to the inner wall of the annular groove.

[0016] Furthermore, rotating shafts are respectively fixed on both sides of the top of the grinding machine, and the grinding machine is rotatably installed on the base through the rotating shafts. The rotating shaft passes through the base and extends out of the base. The surface fixed sleeve of the part of the rotating shaft located outside the base is provided with an incomplete gear, and a trigger assembly is provided on the base. The trigger assembly cooperates with the incomplete gear so that when the grinding machine rotates to a preset angle, the electromagnet can be energized or de-energized.

[0017] Furthermore, a battery is arranged on the base, and the trigger assembly includes mounting plates symmetrically arranged on both sides of the base, a downwardly recessed dovetail groove is arranged on the top of the mounting plate, a U-shaped plate is arranged between the two mounting plates, two wing plates of the U-shaped plate are respectively slidably embedded in the dovetail groove, the web of the U-shaped plate is located at the rear end of the base, and the ends of the two wing plates of the U-shaped plate are respectively provided with racks for meshing with incomplete gears, a conductive strip is embedded in the inner side wall of the U-shaped plate, and a conductive sheet is respectively embedded in the side walls of the two dovetail grooves, and the conductive sheet is electrically connected to the output end of the electromagnet and the battery through a wire.

[0018] The beneficial effects of the present invention are: 1. By setting a driving part to replace the original pneumatic spring, when replacing the grinding wheel, the driving part drives the grinder to swing outward. The grinding machine has high moving efficiency, no manual operation by workers is required, and the grinding machine is accurately positioned.

[0019] 2. When the grinding machine is moved to the replacement position, it is supported and positioned by the driving component. No additional tools are needed to fix the position of the grinding machine. By setting the abutment plate and the support assembly, the support plate can abut against the abutment part to support the grinding machine, which can prevent the grinding machine from sinking and shaking due to failure of the driving component, causing equipment or personnel losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention is further illustrated by means of the non-limiting examples given in the accompanying drawings.

[0021] Figure 1 It is a structural schematic diagram of a grinding wheel replacement and resetting device for an SD5 wire cutting machine of the present invention.

[0022] Figure 2It is a schematic diagram of the installation structure of the support assembly and the abutment plate in the present invention.

[0023] Figure 3 It is a structural schematic diagram of the abutment plate and the support plate in the present invention.

[0024] Figure 4 It is a structural schematic diagram of the power component in the present invention.

[0025] Figure 5 It is a cross-sectional view of the power assembly in the present invention.

[0026] Figure 6 yes Figure 5 Enlarged structural diagram at A in the middle.

[0027] Figure 7 It is a schematic diagram of the connection structure between the power component and the support component in the present invention.

[0028] Figure 8 yes Figure 7 Enlarged structural diagram at B in the middle.

[0029] Fig. 9 yes Figure 8 Enlarged structural diagram at point C in the middle.

[0030] In the above drawings: 1. base; 2. grinding machine; 21. fixed plate; 22. rotating shaft; 23. incomplete gear; 3. abutment plate; 31. abutment part; 4. reinforcement plate; 5. telescopic member; 6. support assembly; 61. support rod; 611. abutment end; 612. contact end; 62. first spring; 63. support plate; 7. power assembly; 71. mounting cylinder; 72. transmission rod; 73. electromagnet; 74. moving iron core; 75. abutment member; 76. annular groove; 77. second spring; 8. trigger assembly; 81. mounting plate; 82. dovetail groove; 83. U-shaped plate; 84. rack; 85. conductive strip. DETAILED DESCRIPTION

[0031] The following describes the implementation of the present invention through specific specific embodiments, and those skilled in the art can understand the advantages and effects of the present invention from the contents disclosed in this specification. It should be noted that the illustrations provided in the following embodiments are only for exemplary descriptions, and only schematic diagrams are shown, not physical diagrams, and cannot be understood as limitations on the present invention. In order to better illustrate the embodiments of the present invention, some parts in the figures may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known mechanisms and their descriptions in the figures may be omitted.

[0032] The same or similar numbers in the figures of the embodiments of the present invention correspond to the same or similar parts. In the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "back", etc. indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the figure. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the figures are only used for illustrative purposes and cannot be understood as limitations on the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances. In the description of this application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0033] At present, a fixed plate 21 is symmetrically fixed in the middle of the left and right sides of the grinder 2 of the SD5 wire cutting machine. The fixed plate 21 has the functions of limiting and supporting the grinder 2. The prior art has fully disclosed the structure of the grinder and the fixed plate 21 of the SD5 wire cutting machine, so no further details will be given here.

[0034] In the prior art, the grinder 2 of the SD5 wire cutting machine is assisted in supporting and positioning by the pneumatic springs on both sides thereof. This support mode is passive support. When the grinding wheel needs to be replaced, the worker needs to manually cooperate with the pneumatic spring to pull the grinder 2 out from the inside of the base 1. Since the weight of the grinder 2 is relatively large (usually 70KG), this process is not only time-consuming and labor-intensive, but also inefficient. The grinder 2 is pulled out until the axis of the grinder 2 forms an angle of about 35-40° with the vertical direction. At this time, the grinder 2 is tilted from top to bottom toward the outside of the equipment. This angle can help obtain a better working field of vision and a more comfortable operating posture when replacing the grinding wheel. In the process of manually pulling out the grinder 2, the worker is often unable to better grasp its tilt angle due to the weight of the grinder 2, resulting in the need for cooperation of multiple workers and subsequent adjustments.

[0035] During the long-term operation of the SD5 type wire cutting machine, the inventor found that due to the high frequency of grinding wheel replacement, the pneumatic spring is in a high-pressure working state for a long time. Therefore, the pneumatic spring is prone to bulging, breakage, surface wear and air leakage. These problems will affect the normal operation of the pneumatic spring and may even cause equipment failure. When replacing the grinding wheel, if the pneumatic spring fails, it may cause the grinder 2 to sink and shake, causing losses to equipment and personnel.

[0036] like Figure 1-9As shown, the embodiment of the present invention proposes a replacement and reset device for the grinder 2 of the SD5 wire cutting machine, comprising abutment plates 3 symmetrically arranged on the outside of two fixed plates 21, abutment portions 31 are arranged on the abutment plates 3, driving members for driving the grinder 2 to swing are respectively arranged between the two fixed plates 21 and the base 1, and support assemblies 6 are arranged on both sides of the base 1 corresponding to the abutment plates 3. The support assembly 6 has an idle state and a working state. When the grinder 2 is in the operating position, the support assembly 6 is in the idle state, and the support assembly 6 is not in contact with the abutment plates 3. A power assembly 7 for switching the state of the support assembly 6 is arranged on the base 1. When the grinder 2 swings to the preset replacement position, the power assembly 7 switches the support assembly 6 from the idle state to the working state. When the support assembly 6 is in the working state, the support assembly 6 moves to the corresponding position of the abutment portion 31, so that the abutment portion 31 can abut on the support assembly 6.

[0037] In fact, the driving part can be a motor or a screw mechanism. A mounting plate 81 is set on the equipment. The screw is installed on the mounting plate 81 and rotates along the front and rear directions of the wire cutter. The motor is fixed to the base 1 by bolts. The output end of the motor is fixedly connected to one end of the screw. A guide rod parallel to the screw is also fixed on the mounting plate 81. A sliding seat is connected to the surface of the screw. The sliding seat is threaded with the screw. A through hole is opened on the sliding seat for the guide rod to pass through. A connecting rod is directly set between the sliding seat and the fixed plate 21. The two ends of the connecting rod are respectively hinged to the sliding seat and the fixed plate 21. The motor drives the screw to rotate, so that the sliding seat moves along the axial direction of the screw, and then drives the grinding wheel machine 2 to swing through the connecting plate. In this embodiment, the driving member includes a telescopic member 5, which can be a cylinder, a hydraulic rod or an electric telescopic rod. In this embodiment, the telescopic member 5 is preferably a cylinder, one end of the telescopic member 5 is hinged to the base 1, and the telescopic end of the telescopic member 5 is hinged to the fixed plate 21. The hinge axis of the telescopic member 5 and the base 1, and the hinge axis of the telescopic member 5 and the fixed plate 21 are parallel to the width direction of the base 1. By telescoping the telescopic member 5 and controlling its telescopic stroke, the grinder 2 can be driven to swing to the outside of the base 1 to the replacement position quickly, efficiently and accurately, and the grinder 2 is supported by the telescopic member 5, without manual operation, with a simple structure, convenient operation, time saving and labor saving, and reduced safety hazards.

[0038] In fact, a slot can be provided at the lower side of the abutment plate 3, and the slot is the abutment portion 31 of the abutment plate 3. In the present embodiment, the abutment plate 3 is an arc-shaped plate, the center of the abutment plate 3 is located on the swing axis of the grinding wheel machine 2, the outer arc surface of the abutment plate 3 is located at the lower part of the abutment plate 3, the outer arc surface of the abutment plate 3 is serrated, and the serrated teeth are oblique teeth, so that the outer side of the abutment plate 3 is in the shape of a ratchet, and the outer arc surface of the abutment plate 3 forms the abutment portion 31, and the side wall at one end of the abutment plate 3 is fixedly connected to the bottom position of the outer side surface of the fixed plate 21, and the other end extends to the rear end of the base 1 to form a suspended end. Such a structural design is simple in structure, and the grinding wheel machine 2 can be positioned at multiple angles by the abutment plate 3 and the support assembly 6 to prevent the grinding wheel machine 2 from sinking and shaking, and the application is more flexible and changeable, and the practicability is strong.

[0039] A reinforcing plate 4 is obliquely arranged between the inner side of the abutment plate 3 and the fixed plate 21. The two ends of the reinforcing plate 4 are respectively fixedly connected to the inner wall of the abutment plate 3 close to the suspended end and the outer wall of the fixed plate 21. The abutment plate 3, the reinforcing plate 4 and the fixed plate 21 together form a triangular structure with strong stability and greater load-bearing capacity.

[0040] The support assembly 6 includes a support rod 61, which is located below the abutment plate 3. The middle part of the support rod 61 is rotatably mounted in the middle part of the side wall of the base 1. One end of the support rod 61 is tilted from bottom to top toward the front end of the base 1 and forms an abutment end 611. By rotating the support rod 61, the abutment end 611 of the support rod 61 can abut against the teeth of the outer arc surface of the abutment plate 3, thereby forming a stable support for the grinding wheel machine 2, and then fixing the position of the grinding wheel machine 2, preventing the grinding wheel machine 2 from sinking or shaking, and ensuring that the grinding wheel machine 2 remains stable during the replacement process. The other end of the support rod 61 is tilted from bottom to top toward the rear end of the base 1 and forms a contact end 612. The power assembly 7 is located at the rear end of the base 1 and is connected to the contact ends 612 of the two support rods 61 respectively.

[0041] A first spring 62 is provided between the support rod 61 and the base 1. Specifically, a support plate 63 is fixedly provided on the outer wall of the base 1 below the contact end 612 of the support rod 61. The first spring 62 is located between the support plate 63 and the contact end 612 of the support rod 61. Both ends of the first spring 62 are respectively fixedly connected to the support plate 63 and the contact end 612 of the support rod 61. The first spring 62 enables the contact end 612 of the support rod 61 to have a tendency to drive the abutting end 611 of the support plate away from the outer arc surface of the abutting plate 3. In this embodiment, the structure of the support rod 61 is similar to a lever. Under the action of the first spring 62, the abutting end 611 of the support rod 61 always remains out of contact with the abutting plate 3.

[0042] In fact, the power assembly 7 can be two cylinders, both of which are fixedly mounted on the base 1 by bolts, and the telescopic ends of the two cylinders are respectively in active contact with the contact ends 612 of the two support rods 61. Through the telescopic movement of the two cylinders, the rotation of the two support rods 61 can be controlled simultaneously. The power assembly 7 includes a mounting tube 71 and a transmission rod 72. The mounting tube 71 is vertically fixed in the middle of the rear end surface of the base 1. The interior of the mounting tube 71 is provided with a cavity, and one end of the mounting tube 71 is closed and the other end is open. An electromagnetic drive assembly is arranged inside the mounting tube 71. The transmission rod 72 is located at the open end of the mounting tube 71. The two ends of the transmission rod 72 are respectively in active contact with the contact ends 612 of the two support rods 61. One end of the electromagnetic drive assembly extends out of the open end of the mounting tube 71 and is connected to the middle of the transmission rod 72. In this embodiment, the transmission rod 72 is in an inverted "Ω" shape, and the two ends of the transmission rod 72 are respectively located above the contact ends 612 of the two support rods 61. The electromagnetic drive component is used to be electrically connected to an external power supply, and when the electromagnetic drive component is energized, it can provide a driving force for the transmission rod 72 to move in a vertical direction.

[0043] The electromagnetic drive assembly includes an electromagnet 73 and a moving iron core 74. The electromagnet 73 is arranged at the closed end of the mounting tube 71. The moving iron core 74 is movably arranged in the cavity of the mounting tube 71 and one end of the moving iron core 74 extends out of the mounting tube 71 and is fixedly connected to the middle part of the transmission rod 72. An annular groove 76 is opened on the cavity wall. An annular abutment 75 is fixedly sleeved on the outer wall of the moving iron core 74. A second spring 77 is sleeved on the surface of the moving iron core 74. The abutment 75 and the second spring 77 are both located in the annular groove 76. One end of the second spring 77 is fixedly connected to the abutment 75, and the other end is fixedly connected to the inner wall of the annular groove 76. In this embodiment, when the electromagnet 73 is energized, a repulsive force is generated between the electromagnet 73 and the moving iron core 74, so that the moving iron core 74 presses down the transmission rod 72, thereby driving the support rod 61 to move downward to overcome the elastic force of the first spring 62, so that the abutting end 611 of the support rod 61 maintains contact with the teeth of the outer arc surface of the abutment plate 3, that is, the support assembly 6 changes from an idle state to a working state. At this time, the abutting end 611 of the support plate is similar to a ratchet structure, so that the grinding wheel machine 2 can only swing toward the outside of the base 1.

[0044] A rotating shaft 22 is fixed on both sides of the top of the grinding machine 2. The grinding machine 2 is rotatably installed on the base 1 through the rotating shaft 22. The rotating shaft 22 penetrates the base 1 and extends out of the base 1. An incomplete gear 23 is fixed on the surface of the rotating shaft 22 outside the base 1. A trigger assembly 8 is provided on the base 1. The trigger assembly 8 cooperates with the incomplete gear 23, so that when the grinding machine 2 rotates to a preset angle, the electromagnet 73 can be powered on or off. A battery (not shown) is arranged on the base 1, and the trigger assembly 8 includes mounting plates 81 symmetrically fixed on both sides of the base 1, the length direction of the mounting plates 81 is parallel to the length direction of the base 1, and a dovetail groove 82 is penetrated through the upper surface of the mounting plates 81 along the front-to-back direction, and a U-shaped plate 83 is arranged between the two mounting plates 81, and the two wing plates of the U-shaped plate 83 are respectively slidably embedded in the dovetail groove 82, and the web of the U-shaped plate 83 is located at the rear end of the base 1, and the ends of the two wing plates of the U-shaped plate 83 are respectively provided with racks 84 for meshing with the incomplete gear 23, and a conductive strip 85 is embedded in the inner side wall of the U-shaped plate 83, and a conductive sheet is respectively embedded in the side walls of the two dovetail grooves 82, and the conductive sheet is electrically connected to the electromagnet 73 and the output end of the battery through a wire.

[0045] In this embodiment, when the driving member drives the grinding machine 2 to swing, the rotating shaft 22 rotates, thereby driving the incomplete gear 23 to rotate. The incomplete gear 23 engages with the rack 84 to drive the U-shaped plate 83 to slide in the dovetail groove 82, so that the two ends of the conductive strip 85 contact the two conductive sheets, and the electromagnet 73 is energized.

[0046] Working principle: The grinder 2 of the SD5 wire cutting machine is tilted 15-20° toward the inside of the equipment when in operation. When the grinding wheel needs to be replaced, the power supply of the equipment is cut off and a warning sign is hung at a conspicuous position of the equipment. After the staff puts on protective equipment, they find and unlock the locking mechanism of the grinder 2 fixed in the machine casing, extend the telescopic part 5, and drive the grinder 2 to swing toward the outside of the base 1. When the grinder 2 swings to tilt toward the outside of the base 1, the incomplete gear 23 moves the U-shaped plate 83 through the rack 84. At this time, the two ends of the conductive strip 85 are not in contact with the conductive sheet, the electromagnet 73 is in a power-off state, and the abutting end 611 of the support plate is separated from the abutting portion 31 of the abutting plate 3.

[0047] The grinder 2 continues to swing toward the outside of the base 1 until the grinder 2 swings to an angle of 35-40° between its axis and the vertical direction. At this time, the two ends of the conductive strip 85 just touch the conductive sheet, the electromagnet 73 is energized, the moving iron core 74 overcomes the elastic force of the second spring 77 and presses down the transmission rod 72, and the transmission rod 72 drives the two support rods 61 to overcome the elastic force of the first spring 62 and rotate at the same time, so that the abutting end 611 of the support plate contacts the teeth of the outer arc surface of the abutting plate 3. It should be noted that when the abutting end 611 of the support plate contacts the teeth of the outer arc surface of the abutting plate 3, When the teeth of the outer arc surface of the plate 3 are in contact, a certain gap is reserved between the end face of the abutting end 611 and the side wall of the tooth in contact there. This gap allows the abutting end 611 of the support rod 61 to rotate and reset when the grinding machine 2 swings back and resets, thereby separating from the abutting plate 3, that is, the abutting end 611 of the support plate contacts the abutting portion 31 of the abutting plate 3 but does not support it. The grinding machine 2 is supported by the telescopic member 5. The swinging of the grinding machine 2 from the operating position to the replacement position is simple and efficient, and does not require manual operation by the worker, which is highly safe. When the grinding machine 2 is in the replacement position, if the telescopic member 5 fails during the worker's replacement of the grinding wheel, the grinding machine 2 will swing back to a very small angle and be supported by the support plate, and the grinding machine 2 will not sink or shake, further improving the safety and practicality of use.

[0048] When the grinding wheel is replaced, the telescopic member 5 drives the grinder 2 to swing back. At this time, the incomplete gear 23 drives the U-shaped plate 83 to move back through the rack 84. The two ends of the conductive strip 85 are immediately separated from the two conductive sheets. The electromagnet 73 is powered off. Under the action of the second spring 77, the moving iron core 74 moves up and resets. Under the action of the first spring 62, the support plate rotates, and the abutting end 611 of the support plate is separated from the abutting portion 31 of the abutting plate 3, which does not affect the grinder 2 returning to the operating position.

[0049] The grinding wheel machine 2 replacement and resetting device for the SD5 wire cutting machine provided by the present invention is easy to operate, the grinding wheel machine 2 can swing quickly, efficiently and accurately, and has high safety in use. It can prevent the grinding wheel machine 2 from sinking and shaking during the grinding wheel replacement process due to a failure of the telescopic part 5. When the telescopic part 5 fails and the grinding wheel machine 2 sinks and shakes, the abutting end 611 of the support plate tightly abuts against the abutting portion 31 of the abutting plate 3, thereby forming a stable support for the grinding wheel machine 2 without causing loss of personnel and equipment.

[0050] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, which should be included in the scope of the claims of the present invention. The techniques, shapes, and structural parts not described in detail in the present invention are all known technologies.

Claims

1. A grinding wheel replacement and resetting device for an SD5 wire cutting machine, applied to the grinding wheel of the SD5 wire cutting machine, characterized in that: The grinding machine replacement and resetting device includes abutment plates symmetrically arranged on the outer sides of the two fixed plates, abutment portions are arranged on the abutment plates, driving members for driving the grinding machine to swing are respectively arranged between the two fixed plates and the base, supporting assemblies are arranged corresponding to the abutment plates on both sides of the base, the supporting assemblies have an idle state and a working state, when the supporting assemblies are in the idle state, the supporting assemblies are not in contact with the abutment plates, a power assembly for switching the state of the supporting assemblies is arranged on the base, when the grinding machine swings to a preset replacement position, the power assembly switches the supporting assembly from the idle state to the working state, when the supporting assembly is in the working state, the supporting assembly is located at a position corresponding to the abutment portion, so that the abutment portion can abut against the supporting assembly.

2. The grinding wheel replacement and resetting device for the SD5 wire cutting machine according to claim 1 is characterized in that: The driving member comprises a telescopic member, one end of which is hinged to the base, the telescopic end of which is hinged to the fixed plate, and the hinge axis between the telescopic member and the base and the hinge axis between the telescopic member and the fixed plate are parallel.

3. The grinding wheel replacement and resetting device for the SD5 wire cutting machine according to claim 1 is characterized in that: The abutting plate is an arc-shaped plate, the outer arc surface of the abutting plate is located at the lower part of the abutting plate, and the outer arc surface of the abutting plate is sawtooth-shaped to form the abutting portion.

4. The grinding wheel replacement and resetting device for the SD5 wire cutting machine according to claim 3 is characterized in that: A reinforcing plate is obliquely arranged between the inner side of the abutting plate and the fixing plate.

5. The grinding wheel replacement and resetting device for the SD5 wire cutting machine according to claim 3 is characterized in that: The support assembly includes a support rod, which is located below the abutment plate. The middle part of the support rod is rotatably mounted on the side wall of the base. One end of the support rod is inclined from bottom to top toward the front end of the base to form an abutment end. The abutment end of the support rod can abut against the outer arc surface of the abutment plate. The other end of the support rod is inclined from bottom to top toward the rear end of the base to form a contact end. The power assembly is located at the rear end of the base and is respectively connected to the contact ends of the two support rods.

6. The grinding wheel replacement and resetting device for the SD5 wire cutting machine according to claim 5 is characterized in that: A first spring is arranged between the support rod and the base, and the first spring makes the abutting end of the support rod have a tendency to move away from the outer arc surface of the abutting plate.

7. The grinding wheel replacement and resetting device for the SD5 wire cutting machine according to claim 5 is characterized in that: The power assembly includes a mounting tube and a transmission rod. The mounting tube is vertically fixed on the rear end surface of the base. A cavity is provided inside the mounting tube, and one end of the mounting tube is closed and the other end is open. An electromagnetic drive assembly is provided inside the mounting tube. The transmission rod is located at the open end of the mounting tube. Both ends of the transmission rod are respectively connected to the contact ends of the two support rods. One end of the electromagnetic drive assembly extends out of the open end of the mounting tube and is connected to the transmission rod.

8. The grinding wheel replacement and resetting device for the SD5 wire cutting machine according to claim 7 is characterized in that: The electromagnetic drive assembly includes an electromagnet and a moving iron core, the electromagnet is arranged at the closed end of the mounting tube, the moving iron core is movably arranged in the cavity of the mounting tube, and one end of the moving iron core extends out of the mounting tube and is fixedly connected to the transmission rod, an annular groove is opened on the cavity wall of the cavity, an abutment is arranged on the outer wall of the moving iron core, a second spring is sleeved on the surface of the moving iron core, the abutment and the second spring are both located in the annular groove, one end of the second spring is fixedly connected to the abutment, and the other end is fixedly connected to the inner wall of the annular groove.

9. The grinding wheel replacement and resetting device for the SD5 wire cutting machine according to claim 7 is characterized in that: Rotating shafts are fixed on both sides of the top of the grinding machine, and the grinding machine is rotatably installed on the base through the rotating shafts. The rotating shaft passes through the base and extends out of the base. An incomplete gear is fixed on the surface of the rotating shaft outside the base. A trigger assembly is provided on the base, and the trigger assembly cooperates with the incomplete gear so that when the grinding machine rotates to a preset angle, the electromagnet can be powered on or off.

10. The grinding wheel replacement and resetting device for the SD5 wire cutting machine according to claim 9, characterized in that: A battery is arranged on the base, and the trigger assembly includes mounting plates symmetrically arranged on both sides of the base, a dovetail groove recessed downwardly is arranged on the top of the mounting plate, a U-shaped plate is arranged between the two mounting plates, two wing plates of the U-shaped plate are respectively slidably embedded in the dovetail groove, the web of the U-shaped plate is located at the rear end of the base, and the ends of the two wing plates of the U-shaped plate are respectively provided with racks for meshing with incomplete gears, a conductive strip is embedded in the inner side wall of the U-shaped plate, and a conductive sheet is respectively embedded in the side walls of the two dovetail grooves, and the conductive sheet is electrically connected to the output end of the electromagnet and the battery through a wire.

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