Internal adjustment mincing system

Abstract

The invention discloses an internal adjustment mincing system, which relates to the technical field of material crushing, comprises a cutter shaft, a cutter and a controller, and is characterized in that the cutter is detachably connected with the cutter shaft, a shell structure of equipment where the cutter shaft is located is a mincing bin, and the controller is electrically connected with a cutter changing mechanism, a separating mechanism and a pushing assembly; the separation part is arranged on the side wall of the mincing bin and is provided with a separation part which is propped against the cutter in the mincing bin; the tool changing mechanism is arranged below the mincing bin, is communicated with an inner cavity of the mincing bin, is used for storing a tool and is provided with an operation part for a user to operate and change the tool; the pushing assembly is installed on the tool changing mechanism and used for pushing the tools into the mincing bin from the tool changing mechanism. The mincing structure has the effect of simplifying the tool replacement work in the mincing structure.

Description

Technical Field

[0001] The present application relates to the technical field of material crushing, and in particular to an internally regulated crushing system. Background Art

[0002] Meat fillings, masterbatches, etc. are raw materials that are commonly used. If they are minced by hand with a knife, it will be a tedious and laborious task, which consumes too much manpower and makes people feel tired. For this reason, automatic / semi-automatic equipment is introduced. Take minced meat as an example: the emergence of meat grinders saves the time and energy of manual mincing.

[0003] Although the above-mentioned equipment can make crushing and mincing raw materials easy, it often has the following shortcomings: when mincing materials of different materials and types, or when different degrees of mincing are desired, the cutters should be replaced to improve the mincing effect. However, in existing mincing structures, the cutters are often fixed and are usually only disassembled and assembled during maintenance. Moreover, the disassembly and installation process is relatively complicated and requires professional operation. Therefore, the present application proposes a new technical solution. Summary of the invention

[0004] In order to simplify the work of replacing the cutters in the mincing structure, the present application provides an internally-adjustable mincing system.

[0005] The present application provides an internally regulated mincing system, which adopts the following technical solution:

[0006] An internally adjusted mincing system comprises a knife shaft, a knife and a controller, wherein the knife and the knife shaft are detachably connected and the shell structure of the device where the knife shaft is located is called a mincing bin, and the controller is electrically connected with a knife changing mechanism, a separation mechanism and a pushing component and:

[0007] A separation mechanism, which is disposed on the side wall of the mincing bin and has a separation portion abutting against the cutter in the mincing bin;

[0008] A knife changing mechanism is arranged below the mincing bin, communicated with the inner cavity of the mincing bin for storage, and has an operating portion for a user to operate and change the knife;

[0009] A pushing assembly, which is installed on the knife changing mechanism and is used to push the knife from the knife changing mechanism into the mincing bin;

[0010] The controller is provided with a function button and a contact sensor, wherein the contact sensor is located at the end of the action path of the pushing component and is configured as follows:

[0011] If the trigger signal of the function button is received and meets the preset tool change request, the separation mechanism is controlled to push the tool into the tool change mechanism;

[0012] If a contact signal fed back by the contact sensor is received, the separation mechanism is controlled to push the tool toward the tool shaft.

[0013] Optionally, a torsion block is fixedly connected to the end of the knife shaft, and the torsion block is obtained by twisting a prism around a central axis. The knife has a mounting hole adapted for the torsion block. The separation mechanism includes a sliding plate, a connecting rod, an abutment ring), a threaded rod and a driving motor. The sliding plate is slidingly connected to the inner cavity of the mincing bin, and the side wall of the sliding plate abuts against the inner wall of the mincing bin. An abutment block is fixedly connected to the side wall of the sliding plate facing the torsion block. The end of the torsion block is rotatably connected to the abutment block. The connecting rod The abutment ring is fixedly connected to the side wall edge of the sliding plate facing the torsion block, the abutment ring is fixedly connected to the connecting rod and sleeved on the knife shaft, the knife disc of the knife is a separation part, and the abutment ring abuts against the knife disc of the knife, the driving motor 1 is fixedly connected to the outer wall of the mincing bin, and the output end of the driving motor 1 is horizontally extended toward the sliding plate, the threaded rod is fixedly connected to the output shaft of the driving motor 1, and an extension block is fixedly connected to the side wall of the sliding plate, and the extension block extends out of the mincing bin and is threadedly sleeved on the threaded rod.

[0014] Optionally, the tool changing mechanism includes a carrying box located below the mincing bin, a sliding rheostat, a connecting block and multiple groups of receiving parts for storing the cutting tools, the upper end of the carrying box is provided with a cutting port for transferring the cutting tools and the inner wall is fixedly connected with a partition for dividing the inner cavity into two upper and lower cavities, the sliding rheostat is fixedly connected to the inner wall of the lower cavity of the carrying box, and the sliding plate of the sliding rheostat is slidably arranged along the length direction of the mincing bin, the connecting block is fixedly connected to the sliding plate of the sliding rheostat, and the upper end of the connecting block extends into the upper cavity of the carrying box and is connected to any group of receiving parts, multiple groups of the receiving parts are slidably connected to the upper cavity of the carrying box along the length direction of the mincing bin, any group of receiving parts is connected with a push rod, and the push rod extends out of the carrying box, and the multiple groups of the receiving parts are linked by setting a linkage rod, the pushing component is arranged on the inner wall of the upper cavity of the carrying box, and the pushing component abuts against the receiving part, and a current sensor is sleeved on the cable of the sliding rheostat.

[0015] Optionally, a display screen is provided on the outer wall of the mincing bin, and the current sensor and the display screen are electrically connected to the controller respectively;

[0016] Among them, the controller configuration is:

[0017] Establish a database, and record in the database: the detection value of the current sensor, the resistance value of the sliding rheostat and the data table of the position of each receiving part;

[0018] Based on the detection value of the current sensor, the receiving part located below the knife edge is obtained by looking up the table, and the database is searched to match the tool type pre-stored in the corresponding receiving part and display it on the display screen.

[0019] Optionally, the pushing assembly includes a sliding column and a driving rod, the sliding column is slidably connected to the side wall of the carrying box, an extension plate is fixedly connected to the receiving member, the driving rod is slidably passed through the sliding column and extends into the inner cavity of the carrying box, and the driving rod abuts against the extension plate.

[0020] Optionally, a limit assembly for limiting the slippage of the drive rod is provided on the inner wall of the carrying box, and the limit assembly includes a second drive motor, a limit plate and a connecting column. The second drive motor is fixedly connected to the inner wall of the carrying box, and the output shaft of the second drive motor is horizontally arranged toward the inner cavity of the carrying box. The output shaft of the second drive motor is fixedly connected to the drive column, and a tooth structure is provided on the outer wall of the drive column. The connecting column is rotatably connected to the inner wall of the carrying box, and the side wall edge of the limit plate is fixedly connected to the connecting column, and the limit plate abuts against the drive rod. A tooth structure is provided on the outer wall of the connecting column, and the tooth structures between the drive column and the connecting column abut and mesh with each other. A monitoring assembly for contacting and limiting the drive rod is provided in the inner cavity of the carrying box.

[0021] Optionally, the receiving member includes a supporting seat and a tool changing seat, the supporting seat is slidably connected to the inner wall of the carrying box, the interior of the supporting seat is hollow and the opening is upward, the tool changing seat is slidably connected to the inner cavity of the supporting seat, the extension plate is fixedly connected to the side wall of the tool changing seat, and a through opening is opened at the bottom of the supporting seat, the monitoring component includes two conductive touch plates and two conductive blocks, the two conductive touch plates are respectively fixedly installed at the two ends of the bottom of the tool changing seat, the two conductive blocks are respectively connected to the upper surface of the partition, and the two conductive blocks are respectively located on both sides of the connecting block, and the two conductive blocks are both located below the knife receiving edge, the two conductive touch plates are respectively abutted against the two conductive blocks, the tool falling into the tool changing seat abuts against the inner walls on both sides of the tool changing seat and the tool is conductive, and the controller is configured as follows:

[0022] If the electric signal fed back after the two conductive blocks are turned on is received, the driving motor is controlled to rotate three times to drive the limit plate to open the limit on the driving rod.

[0023] Optionally, a material collecting mechanism for limiting the flow of material into the support seat is provided at the knife edge, the material collecting mechanism includes a fixed block, a sliding shield and a collecting plate, the fixed block is fixedly connected to the inner wall of the supporting box, the interior of the fixed block is hollow and the opening faces the knife edge, the sliding shield is slidably connected in the fixed block, a guide rod is fixedly connected to the side wall of the sliding shield, the end of the guide rod extends out of the supporting box, the collecting plate is fixedly connected to the lower end of the sliding shield, and the upper surface of the collecting plate is arranged in an arc-shaped recessed manner, and the length of the collecting plate is greater than the length of the sliding shield, the collecting plate is fixedly connected to a waste pipe at the lowest point of its arc-shaped concave surface, and the waste pipe extends out of the supporting box, and a buffer mechanism for preventing the tool from getting stuck on the inner wall of the supporting seat is provided below the collecting plate.

[0024] Optionally, the buffer mechanism includes a connecting rod, a third driving motor, an adjustable potentiometer, a magnetic block and a sliding block. A sliding groove for sliding the sliding block is horizontally opened on the upper edge of the inner wall of the carrying box. An extension rod is fixedly connected to the side wall of the sliding block, and the extension rod is slidably connected in the sliding groove. The connecting rod is rotatably connected to the inner wall of the carrying box, and the two ends of the connecting rod are respectively rotatably connected to the sliding shield and the sliding block. The interior of the sliding block is hollow and the opening faces the knife edge. The third driving motor is fixedly connected to the inner cavity of the sliding block. , and the output shaft of the driving motor three is arranged toward the opening of the sliding block, the adjustable potentiometer is fixed in the inner cavity of the sliding block, and the adjusting part of the adjustable potentiometer is connected to the output shaft of the driving motor three, the magnetic block is fixed at the opening of the sliding block and is connected to the adjustable potentiometer through a wire, the interior of the abutment block is hollow and the opening is facing the torsion block, a laser ranging sensor is fixedly connected in the inner cavity of the abutment block, and the detection end of the laser ranging sensor is facing the torsion block, and the laser ranging sensor and the driving motor three are electrically connected to the controller respectively;

[0025] Among them, the controller configuration is:

[0026] If the trigger signal of the function button is received and meets the preset tool change request, the adjustable potentiometer is powered on;

[0027] If the detection value fed back by the laser ranging sensor meets the preset tool correction condition, the drive motor three is controlled to rotate forward first and last for t1 time, and then rotate reversely and last for t1 time.

[0028] To summarize, the present application includes the following beneficial technical effects: when the user needs to replace the tool according to different materials, the tool is separated from the end of the spiral pushing rod through the separation mechanism and sent to the tool changing mechanism, and the tool selected from the tool changing mechanism is sent into the mincing bin through the pushing assembly, and the tool is installed on the end of the spiral pushing rod through the separation mechanism again to realize the replacement of the tool in the mincing bin and simplify the tool replacement work in the mincing structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0030] Figure 2 is a cross-sectional view of a mincing bin according to an embodiment of the present application;

[0031] Figure 3 is a schematic structural diagram of a separation mechanism according to an embodiment of the present application;

[0032] Figure 4 is a schematic structural diagram of a tool changing mechanism according to an embodiment of the present application;

[0033] Figure 5is a partial cross-sectional view of a carrying box according to an embodiment of the present application;

[0034] Figure 6 yes Figure 5 A partial enlarged view of part A;

[0035] Figure 7 is a schematic diagram of the structure of the monitoring component of an embodiment of the present application;

[0036] Figure 8 is a structural schematic diagram of a material collecting mechanism of an embodiment of the present application;

[0037] Fig. 9 yes Figure 8 A partial enlarged view of part B.

[0038] Explanation of the reference numerals: 1. mincing bin; 2. spiral feeding mechanism; 21. twist block; 22. drive motor four; 23. spiral push rod; 3. tool changing mechanism; 31. bearing box; 32. sliding rheostat; 33. connecting block; 34. receiving member; 341. supporting seat; 342. tool changing seat; 35. partition; 36. push rod; 37. linkage rod; 38. current sensor; 4. separation mechanism; 41. sliding plate; 42. connecting rod; 43. abutment ring; 44. threaded rod; 45. drive motor one; 46. abutment Connecting block; 47, extension block; 5, tool; 6, monitoring component; 61, conductive touch plate; 62, conductive block; 7, pushing component; 71, driving motor two; 72, driving rod; 73, limit plate; 74, sliding column; 75, connecting column; 76, extension plate; 77, driving column; 8, material collecting mechanism; 81, fixed block; 82, sliding shield; 83, collecting plate; 84, guide rod; 9, buffer mechanism; 91, connecting rod; 92, driving motor three; 93, adjustable potentiometer; 94, magnetic block; 95, sliding block. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1-9 This application is described in further detail.

[0040] The embodiment of the present application discloses an internally regulated mincing system.

[0041] Reference Figure 1 and Figure 2 The internal adjustment mincing system includes a knife shaft, a knife 5, a controller, a knife changing mechanism 3, a separation mechanism 4 and a pushing component 7;

[0042] In this embodiment, in order to more intuitively understand the characteristics and functions of this system, it is applied to the mincing device as shown in the figure for illustration. The device includes a mincing bin 1 and a spiral feeding mechanism 2, wherein the central axis of the spiral feeding mechanism 2 is the knife shaft, and the mincing bin 1 is the shell structure of the device.

[0043] The spiral feeding mechanism 2 includes a driving motor 22 and a spiral push rod 23. A feed port and a discharge port are respectively provided at both ends of the mincing bin 1. The end of the mincing bin 1 located at the feed port is fixed with a mounting frame by bolts. The driving motor 22 is mounted on the mounting frame and fixed by bolts. The output shaft of the driving motor 22 extends into the inner cavity of the mincing bin 1. The end of the spiral push rod 23 is coaxially fixedly connected to the output shaft of the driving motor 22 by a coupling. The driving motor 22 drives the spiral push rod 23 to rotate, thereby driving the spiral push rod 23 to push the material entering from the feed port to the discharge port. The tool 5 is detachably mounted on the end of the spiral push rod 23.

[0044] The separation mechanism 4 of the present application is arranged on the side wall of the mincing bin 1 , and the separation portion of the separation mechanism 4 extends into the inner cavity of the mincing bin 1 and abuts against the cutter 5 , and is used to separate the cutter 5 from the spiral pushing rod 23 .

[0045] The knife changing mechanism 3 is arranged below the mincing bin 1, and the knife changing mechanism 3 is communicated with the inner cavity of the mincing bin 1 for storing the knives 5 replaced from the mincing bin 1. At the same time, the user can pre-store different types of knives 5 required for the mincing process of the material in the knife changing mechanism 3, and an operating part for the user to replace the knives 5 is provided on the knife changing mechanism 3.

[0046] The pushing assembly 7 is installed on the knife changing mechanism 3 and is used to push the knife 5 pre-stored / replaced in the knife changing mechanism 3 into the mincing bin 1 .

[0047] The controller is provided with function buttons and contact sensors. The contact sensor is located at the end of the action path of the push component 7. When the push component 7 sends the cutter 5 into the mincing bin 1, the push component 7 is located at the end of its action path and abuts against the contact sensor (the contact sensor in the embodiment of the present application may be a pressure sensor). The controller is configured as follows:

[0048] If a trigger signal from a function button is received, the separation mechanism 4 is controlled to push the tool 5 into the tool changing mechanism 3;

[0049] It can be understood that the trigger signal of the function key can be a high-level electrical signal fed back by the user after pressing the function key (the function key of this embodiment can have a moment control button, that is, after the user presses the button to send a high-level electrical signal to the controller, the button automatically resets, so that the user can request to change the button again).

[0050] If a contact signal fed back by the contact sensor is received, the separation mechanism 4 is controlled to push the tool 5 toward the tool shaft;

[0051] It is understandable that when the contact signal fed back by the contact sensor is received, the pushing component 7 sends the tool 5 into the mincing bin 1. At this time, the tool 5 is reinstalled and locked to the end of the spiral pushing rod 23 by controlling the separation mechanism 4 to complete the replacement of the tool 5.

[0052] Through the above arrangement, the material put into the mincing bin 1 through the feed port moves toward the cutter 5 under the push of the spiral feeding mechanism 2, and is minced by the cutter 5 and discharged from the discharge port. When the user needs to replace the cutter 5 according to different materials, the cutter 5 is separated from the end of the spiral pushing rod 23 by the separating mechanism 4 and sent to the cutter changing mechanism 3, and the cutter 5 selected from the cutter changing mechanism 3 is sent into the mincing bin 1 through the pushing assembly 7, and the cutter 5 is installed on the end of the spiral pushing rod 23 by the separating mechanism 4 again, so as to realize the replacement of the cutter 5 in the mincing bin 1 and simplify the replacement work of the cutter 5 in the mincing structure.

[0053] Reference Figure 2 and Figure 3 In one embodiment of the present application, in order to facilitate the replacement of the tool 5 from the tool changing mechanism 3 to the end of the spiral push rod 23, a torsion block 21 is fixedly connected to the end of the spiral push rod 23 by bolts. The torsion block 21 is obtained by twisting a prism around the central axis. The tool 5 is provided with an installation opening adapted to the torsion block 21. The tool 5 is locked to the end of the spiral push rod 23 by the torsion block 21, so as to drive the tool 5 to rotate and complete the mincing work.

[0054] Reference Figure 3 The separation mechanism 4 includes a sliding plate 41, a connecting rod 42, an abutment ring 43, a threaded rod 44 and a driving motor 45. The sliding plate 41 is slidably connected in the inner cavity of the mincing bin 1, and the side wall of the sliding plate 41 abuts against the inner wall of the mincing bin 1. The connecting rod 42 is fixedly connected to the edge of the side wall of the sliding plate 41 facing the torsion block 21 by bolts. The abutment ring 43 is welded to the end of the connecting rod 42 away from the sliding plate 41. The abutment ring 43 serves as a separation part, which is sleeved on the end of the spiral push rod 23 and abuts against the tool 5. The side wall of the sliding plate 41 facing the torsion block 21 is fixedly connected with an abutment block 46 by bolts, and the end of the torsion block 21 is rotatably connected to the abutment block 46.

[0055] When the material is being minced, under the push of the spiral feeding mechanism 2, the material abuts and pushes the cutter 5 to move toward the discharge port. Under the restriction of the abutment block 46, the cutter 5 is always kept on the torsion block 21 and rotates under the drive of the spiral pushing rod 23 to be minced (it should be noted that a bearing seat is fixed on the side wall of the abutment block 46 facing the torsion block 21 to facilitate the rotation of the torsion block 21 and the cutter 5, and a discharge hole is opened through the sliding plate 41 for the minced material to pass through).

[0056] When the tool 5 needs to be disassembled, the sliding plate 41 is slid toward the discharge port so that the sliding plate 41 drives the abutment ring 43 to detach the tool 5 from the torsion block 21 and send it into the tool changing mechanism 3 .

[0057] A driving motor 45 is fixedly installed on the outer wall of the mincing bin 1 by bolts, and the output shaft of the driving motor 45 is extended along the length direction of the mincing bin 1. The threaded rod 44 is coaxially fixed to the output shaft of the driving motor 45 through a coupling. An extension block 47 is fixedly connected to the side wall of the sliding plate 41 by bolts, and the extension block 47 extends out of the mincing bin 1 and is threadedly sleeved on the threaded rod 44. When the output shaft of the driving motor 45 rotates, the extension block 47 is restricted by the mincing bin 1, so that the extension block 47 slides along the length direction of the mincing bin 1, so as to control the sliding plate 41 to drive the abutment ring 43 to separate the tool 5 from the spiral push rod 23.

[0058] Reference Figure 4 and Figure 5 The tool changing mechanism 3 includes a carrying box 31, a sliding rheostat 32, a connecting block 33 and a plurality of receiving parts 34 for storing the tool 5. The carrying box 31 is fixedly connected to the bottom of the mincing bin 1 by bolts. The interior of the carrying box 31 is hollow and a tool feeding port is opened at the upper end. The carrying box 31 is connected to the inner cavity of the mincing bin 1 through the tool feeding port, so that the tool 5 can be transferred from the mincing bin 1 to the carrying box 31.

[0059] A partition 35 is fixedly connected to the inner wall of the carrying box 31 by bolts, and the inner cavity of the carrying box 31 is divided into an upper cavity and a lower cavity by the partition 35, wherein the sliding rheostat 32 is fixedly installed in the lower cavity of the carrying box 31 by bolts, and the sliding plate of the sliding rheostat 32 is slidably set along the length direction of the carrying box 31, the connecting block 33 is fixedly connected to the sliding plate by bolts, and the upper end of the connecting block 33 extends into the upper cavity of the carrying box 31, and multiple groups of receiving parts 34 are slidably connected to the upper cavity of the carrying box 31 along the length direction of the carrying box 31, wherein any one of the receiving parts 34 is fixedly connected to a push rod 36 by bolts, and the push rod 36 extends out of the carrying box 31, and a linkage rod 37 is arranged between the multiple groups of receiving parts 34, and the linkage rod 37 is used to realize linkage sliding of the multiple groups of receiving parts 34 when any one of the receiving parts 34 is slid.

[0060] The upper end of the connecting block 33 is fixedly connected to any group of receiving parts 34, and the position of the sliding piece of the sliding rheostat 32 can be adjusted by sliding any group of receiving parts 34 (a detachable opening is provided at the end of the carrying box 31 for the tool 5 to be removed from the carrying box 31).

[0061] Reference Figure 5 and Figure 6The push assembly 7 is arranged on the inner wall of the upper cavity of the carrying box 31 and abuts against the receiving member 34. A current sensor 38 is sleeved on the cable of the sliding rheostat 32 (the current sensor 38 is used to detect the magnitude of the current in the loop passing through the sliding rheostat 32. The current sensor 38 in this embodiment can be a Hall sensor). The current sensor 38 is electrically connected to the controller;

[0062] A display screen is embedded on the outer wall of the mincing bin 1, and the display screen is electrically connected to the controller. When the receiving part 34 slides in the inner cavity of the carrying box 31, the image of the tool 5 pre-stored in the receiving part 34 located below the knife receiving edge is displayed through the display screen (when the tool 5 is preset in the receiving part 34, it will be paired with the receiving part 34, and the type name of the tool 5 will be stored and displayed on the display screen).

[0063] Among them, the controller configuration is:

[0064] Establishing a database, and recording in the database: the detection value of the current sensor 38, the resistance value of the sliding rheostat and the data table of the positions of each receiving member;

[0065] It can be understood that, for example: when there are three groups of receiving parts 34, the three groups of receiving parts 34 are numbered 1, 2, and 3 in sequence, wherein the receiving part 34 numbered 2 is fixedly connected to the connecting block 33 by bolts, and the magnitude of the current and the resistance when the experimental slide is located at different positions are recorded:

[0066]

[0067] Among them, X is the horizontal coordinate of the receiving part 34, which changes when the slide plate slides, and Y is the longitudinal coordinate of the receiving part 34, which remains unchanged. It can be seen from the above that when the detection value of the current sensor 38 is 4, the receiving part numbered 1 is located below the knife edge, when the detection value of the current sensor 38 is 2, the receiving part numbered 2 is located below the knife edge, and when the detection value of the current sensor 38 is 1, the receiving part numbered 3 is located below the knife edge.

[0068] Based on the detection value of the current sensor 38, the receiving part 34 located below the knife edge is obtained by looking up the table, and the database is searched to match the type of the tool 5 pre-stored in the corresponding receiving part 34, and displayed on the display screen;

[0069] It can be understood that when the tool 5 is pre-stored in the receiving part 34, it will be bound to the receiving part 34. After obtaining the number of the receiving part 34 located below the knife edge by looking up the table, the tool 5 preset in the receiving part 34 is searched from the database and displayed. In this embodiment, the name of the corresponding tool 5 can be displayed on the display screen for the user to select.

[0070] Through the above arrangement, by pushing the push rod 36, the receiving part 34 is driven to move in the carrying box 31, so that the position of the slide is changed, thereby changing the magnitude of the current in the circuit, and by matching the corresponding current, the receiving part 34 is located at the knife edge, so as to provide feedback to the user on the type and name of the tool currently being replaced.

[0071] Reference Figure 6 In another embodiment of the present application, the pushing assembly 7 includes a driving rod 72 and a sliding column 74. The sliding column 74 is slidably connected to the side wall of the carrying box 31. An extension plate 76 is connected to the receiving member 34. The driving rod 72 is slidably penetrated through the sliding column 74, and one end of the driving rod 72 extends into the inner cavity of the carrying box 31 and abuts against the extension plate 76.

[0072] After the driving rod 72 is extended into the inner cavity of the carrying box 31 and abutted against the extension plate 76, the driving rod 72 is lifted upward to move the tool 5 in the receiving member 34 into the shredding bin 1. The contact sensor for feedback of the completion of the pushing by the pushing assembly 7 is fixedly installed on the side wall of the carrying box 31 by bolts, and the detection end of the contact sensor is downward. When the sliding column 74 slides to the end of the path (the tool 5 extends into the shredding bin 1), the contact sensor abuts against the sliding column 74.

[0073] In order to prevent the driving rod 72 from being accidentally touched during use, causing the driving rod 72 to extend between the two receiving parts 34, thereby causing the receiving parts 34 to be unable to slide in the carrying box 31, a limit assembly is provided on the inner wall of the carrying box 31 for limiting the sliding of the driving rod 72, and the limit assembly includes a driving motor 71, a limit plate 73 and a connecting column 75.

[0074] The driving motor 2 71 is fixed to the inner wall of the carrying box 31 by bolts, and the output shaft of the driving motor 2 71 is horizontally arranged toward the receiving part 34. The output shaft of the driving motor 2 71 is fixedly connected to the driving column 77 by a coupling, and a tooth structure is fixed on the outer wall of the driving column 77. The connecting column 75 is rotatably connected to the inner wall of the carrying box 31, and the side edge of the limit plate 73 is fixed to the connecting column 75, the limit plate 73 abuts against the driving rod 72, and a tooth structure is arranged on the outer wall of the connecting column 75, and the tooth structures between the driving column 77 and the connecting column 75 can abut and mesh with each other.

[0075] When the limiting plate 73 abuts against the driving rod 72, the driving rod 72 is restricted by the limiting plate 73 and cannot extend into the inner cavity of the carrying box 31 to drive the tool 5 to move. By controlling the rotation of the output shaft of the driving motor 2 71, the driving column 77 drives the limiting plate 73 to rotate, thereby releasing the limiting effect of the limiting plate 73 on the limiting rod, and by longitudinally pushing the sliding column 74, the tool 5 is sent into the shredding bin 1.

[0076] Reference Figure 5 and Figure 7 In one embodiment of the present application, the receiving member 34 includes a supporting seat 341 and a tool changing seat 342. The supporting seat 341 is slidably connected to the inner wall of the carrying box 31, and the push rod 36 is fixedly connected to the supporting seat 341 by bolts. The interior of the supporting seat 341 is hollow and the opening is upward. The tool changing seat 342 is slidably connected to the inner cavity of the supporting seat 341 along the longitudinal direction. The tool 5 is stored in the tool changing seat 342. The extension plate 76 is fixedly connected to the side wall of the tool changing seat 342 by bolts, and the extension plate 76 extends out of the supporting seat 341. Through holes are opened at both ends of the bottom of the supporting seat 341.

[0077] In order to release the limit on the driving rod 72, a monitoring component 6 is provided on the inner wall of the carrying box 31. Feedback from the monitoring component 6 is used to determine whether there is a tool changing seat 342 below the cutting edge and whether a tool 5 is provided in the tool changing seat 342.

[0078] The monitoring component 6 includes two conductive touch plates 61 and two conductive blocks 62, wherein the two conductive touch plates 61 are fixedly installed at the two ends of the bottom of the tool changer 342 by bolts, and the two conductive touch plates 61 are penetrated in the through opening, and the two conductive blocks 62 are fixedly installed on the upper surface of the partition 35 by bolts, and the two conductive blocks 62 are respectively located on both sides of the connecting block 33 and below the knife receiving edge, and the two conductive blocks 62 are respectively abutted against the two conductive touch plates 61, and the tool 5 falling into the tool changer 342 abuts against the inner walls on both sides of the tool changer 342 and can conduct electricity, wherein the controller is configured as follows:

[0079] If the electric signal fed back from the conduction of the two conductive blocks 62 is received, the second driving motor 71 is controlled to rotate to drive the limit plate 73 to open the limit on the driving rod 72 .

[0080] It can be understood that when the tool 5 is stored in the tool changing seat 342, the two ends of the tool 5 are respectively abutted against the inner walls on both sides of the tool changing seat 342, so that the two conductive blocks 62 are connected through the two conductive contact plates 61, and the drive motor 2 71 is controlled to rotate; the shaft end of the drive motor 2 71 is connected to an encoder, and the output shaft rotation angle of the drive motor 2 71 is controlled by the encoder to ensure that when the tool 5 is stored in the tool changing seat 342, the drive rod 72 can extend into the carrying box 31 and abut against the extension plate 76, so that the tool 5 can be moved into the shredding bin 1.

[0081] Through the above arrangement, when there is a tool 5 in the tool changing seat 342, and the sliding support seat 341 makes the conductive touch plate 61 at the bottom of the tool changing seat 342 abut against the conductive block 62, the tool 5 will conduct the side walls on both sides of the tool changing seat 342, and a loop will be formed between the two conductive blocks 62, so that the output shaft of the driving motor 2 71 rotates, and rotates a certain angle under the control of the encoder, so that the driving rod 72 can extend into the inner cavity of the carrying box 31 and abut against the extension plate 76, and by pushing the sliding column 74 upward, the tool 5 is pushed into the shredding bin 1 to complete the tool changing operation, thereby avoiding the situation where the tool 5 does not enter the shredding bin 1 after the pushing component 7 is pushed (it should be noted that since the conductive block 62 has current output, insulation measures need to be taken in the carrying box 31. The insulation measures in this embodiment can be filling insulating material / spraying insulating paint on the inner wall of the carrying box).

[0082] Reference Figure 7 and Figure 8 In another embodiment of the present application, in order to prevent the material from flowing into the support seat 341 through the blade edge during the mincing process, causing unnecessary situations such as contamination and leakage (when the material contains conductive liquid) in the inner cavity of the carrying box 31, a material collecting mechanism 8 is provided at the blade edge to limit the material from flowing into the support seat 341.

[0083] The material collecting mechanism 8 includes a fixed block 81, a sliding shield plate 82 and a collecting plate 83. The fixed block 81 is fixed to the inner wall of the carrying box 31 by bolts. The interior of the fixed block 81 is hollow and the opening faces the closing edge. The sliding shield plate 82 is slidably connected in the inner cavity of the fixed block 81, and the sliding shield plate 82 abuts against the outer wall of the shredding bin 1. A guide rod 84 is fixedly connected to the side wall of the sliding shield plate 82 by bolts, and the guide rod 84 extends out of the carrying box 31. By pushing the guide rod 84, the sliding shield plate 82 blocks the closing edge.

[0084] The collecting plate 83 is fixed to the lower surface of the sliding shield plate 82 by bolts, and the upper surface of the collecting plate 83 is arranged in an arc-shaped depression, and the lowest point of the arc-shaped concave surface of the collecting plate 83 is connected to a waste pipe. The length of the collecting plate 83 is greater than the sliding shield plate 82 to ensure that when the sliding shield plate 82 abuts against the closing edge, the collecting plate 83 can extend over the closing edge, so that the material / material liquid flowing out of the gap between the sliding shield plate 82 and the closing edge flows into the waste pipe through the lowest point of the arc-shaped concave surface of the collecting plate 83 and is discharged from the carrying box 31.

[0085] Reference Figure 8 and Fig. 9In another embodiment of the present application, in order to reduce the collision caused when the tool 5 falls from the cutting edge into the tool changing seat 342, a buffer mechanism 9 is arranged under the collecting plate 83, wherein the buffer mechanism 9 includes a connecting rod 91, a driving motor 92, an adjustable potentiometer 93, a magnetic block 94 and a sliding block 95, and a sliding groove is opened on the inner wall of the carrying box 31 along the length direction of the carrying box 31, and an extension rod is fixedly connected to the inner wall of the sliding block 95 by bolts, and the end of the extension rod is slidably connected in the sliding groove, and the side wall of the extension rod abuts against the inner wall of the sliding groove.

[0086] A rotating shaft is fixed to the inner wall of the carrying box 31 by bolts, and the rotating shaft is extended along the width direction of the carrying box 31. The connecting rod 91 is rotatably sleeved on the rotating shaft. The lower surface of the sliding shield 82 and the upper surface of the sliding block 95 are respectively provided with embedding grooves, and a telescopic spring is fixedly connected in the embedding groove, and a pressure plate is fixed at the other end of the telescopic spring. The two ends of the connecting rod 91 are respectively hinged to the pressure plates on the surface of the sliding shield 82 and the sliding block 95.

[0087] Through the above-mentioned arrangement, when the guide rod 84 is pushed to move the sliding shield 82 toward the bottom of the inner cavity of the fixed block 81, the knife edge gradually expands, and the connecting rod 91 rotates under the drive of the sliding shield 82. At the same time, the sliding shield 82 and the contraction spring in the sliding block 95 cause the sliding block 95 to slide toward the knife edge.

[0088] The interior of the sliding block 95 is hollow and the opening is facing the knife edge. The driving motor three 92 is fixedly connected to the inner cavity of the sliding block 95 by bolts, and the output shaft of the driving motor three 92 is arranged toward the opening of the sliding block 95. The adjustable potentiometer 93 is arranged in the inner cavity of the sliding block 95, and the knob of the adjustable potentiometer 93 is coaxially fixedly connected to the output shaft of the driving motor three 92 through a planetary reducer (the adjustable potentiometer 93 in this embodiment can be a rotary rheostat, and the knob of the rotary rheostat is connected to the driving motor three 92 to realize the adjustment of the resistance value of the rotary rheostat by rotating the output shaft of the driving motor three 92).

[0089] The magnetic block 94 is fixedly embedded in the opening of the sliding block 95 and connected to the adjustable potentiometer 93 through a wire. The interior of the abutment block 46 is hollow and the opening faces the torsion block 21. A laser distance sensor is installed in the inner cavity of the abutment block 46, and the detection end of the laser distance sensor faces the torsion block 21. The laser distance sensor and the drive motor 3 92 are electrically connected to the controller respectively, wherein the controller is configured as follows:

[0090] If a trigger signal from a function key is received, the adjustable potentiometer 93 is powered on;

[0091] It can be understood that the controller is provided with a relay output terminal and an electronic switch output terminal. When a high-level signal is fed back after receiving a trigger signal fed back by a user pressing a function key, the electronic switch is controlled to close to realize the conduction of one path of the adjustable potentiometer 93.

[0092] If the detection value fed back by the laser distance measuring sensor meets the preset buffer condition of the tool 5, the drive motor 3 92 is controlled to rotate forward first and last for a period of t1, and then rotate reversely and last for a period of t1.

[0093] It can be understood that the detection value of the laser distance sensor is the distance between its detection end and the torsion block 21. During the separation process of the tool 5, since there is a little distance between the abutment ring 43 and the abutment block 46, it is necessary that when the abutment block 46 is away from the torsion block 21 for a certain distance, the abutment ring 43 abuts against the tool 5 and separates the tool 5 from the torsion block 21. The correction condition of the tool 5 refers to the distance between the laser distance sensor and the torsion block 21 is close to the distance between the laser distance sensor and the torsion block 21 when the tool 5 is separated from the torsion block 21.

[0094] Example: If the tool 5 completely falls off the torsion block 21, the detection value of the laser distance sensor is 3 cm. Since the tool 5 falls quickly when it falls off, a certain time needs to be reserved for the activation of the adjustable potentiometer 93. The correction condition for the tool 5 can be that the detection value of the laser distance sensor is greater than 2.8 cm.

[0095] Since the tool 5 falls into the tool change seat 342 at a relatively fast speed, the duration t1 of the rotation of the drive motor 3 92 does not need to be too long, and the specific duration t1 can be uniformly set when the system leaves the factory.

[0096] Through the above arrangement, during the separation of the tool 5, by pushing the guide rod 84, the sliding shield 82 is retracted into the inner cavity of the fixed block 81, so that the knife edge is unfolded. At the same time, during the movement of the sliding shield 82, the sliding block 95 is driven to move by the connecting rod 91. The sliding block 95 is limited by the extension rod and the sliding groove and moves toward the knife edge. When the output shaft of the driving motor 1 45 rotates, the laser ranging sensor is moved away from the torsion block 21 until the distance between the laser ranging sensor and the torsion block 21 meets the buffering condition of the tool 5, the output shaft of the driving motor 3 92 is controlled to complete forward and reverse rotation, so as to adjust the magnetism of the magnetic block 94 in a short time, so that the tool 5 is affected by the magnetic force of the magnetic block 94 in the process of falling into the tool changing seat 342, thereby reducing the falling speed of the tool 5, so as to achieve the buffering effect (the driving motor 3 92 in this embodiment can be a stepping motor, which inputs electric pulses to the windings of the motor to make the motor rotate at a fixed angle, and the rotation angle and direction of the motor can be controlled by controlling the number of input pulses and the phase sequence of the motor).

[0097] The implementation principle of this embodiment is as follows: the material is put into the inner cavity of the mincing bin 1 through the feed port, and is moved toward the tool 5 at the discharge port under the drive of the spiral blades of the spiral push rod 23. The tool 5 rotates under the drive of the spiral push rod 23 and completes the mincing of the material. When the tool 5 needs to be replaced, the output shaft of the drive motor 45 is controlled to rotate, and the extension block 47 is restricted by the inner wall of the mincing bin 1, so that it drives the sliding plate 41 to move toward the discharge port, and the abutment ring 43 pushes the tool 5 away from the torsion block 21 under the drive of the connecting rod 42.

[0098] During the process of the tool 5 being disengaged, the user manually pushes the guide rod 84 to move the sliding baffle 82 into the inner cavity of the fixed block 81, so that the tool 5 can fall from the knife receiving opening into the tool changing seat 342 below. At the same time, the sliding baffle 82 drives the connecting rod 91 to rotate when it moves, so that the sliding block 95 moves toward the knife receiving opening. A magnetic block 94 is provided in the sliding block 95 for buffering the falling of the tool 5. The magnetic force of the magnetic block 94 attracts the tool 5 to reduce the impact on the tool 5 when it falls.

[0099] The laser distance sensor is used to detect the distance between the sliding plate 41 and the torsion block 21, and judge whether the tool 5 has been completely dropped by the distance. In order to prevent the magnetic block 94 from sucking the tool 5 during the falling process of the tool 5, the magnetic force of the magnetic block 94 changes in a wave shape when the tool 5 is falling (that is, before the tool 5 falls, its magnetic force is set to the minimum, when the tool 5 is about to fall, its magnetic force gradually increases and rises to the maximum, and during the falling process of the tool 5, its magnetic force gradually decreases and returns to the minimum value)

[0100] In order to adapt to the adjustment process of the magnetic force of the magnetic block 94, the output shaft of the drive motor 3 92 needs to complete the forward rotation and then reverse to control the adjustable potentiometer 93 to adjust the size of the current in the circuit, thereby achieving the effect of changing the magnetic force of the magnetic block 94.

[0101] The tool 5 can be replaced only after it is sent into the tool changing seat 342. The user pushes the push rod 36 to drive the tool changing seat 342 to move in the carrying box 31. The sliding piece of the sliding rheostat 32 is connected to any tool changing seat 342. The resistance value of the sliding rheostat 32 is adjusted by moving the position of the tool changing seat 342. The tool changing seat 342 at the current cutting edge is matched based on the resistance value of the sliding rheostat 32, and the tool 5 pre-stored in the tool changing seat 342 is obtained for the user to select, thereby improving the flexibility and convenience of the system.

[0102] After the two conductive contact plates 61 at the bottom of the tool changing seat 342 are connected to each other through the tool 5, the output shaft of the driving motor 2 71 rotates, thereby driving the limit plate 73 to rotate and release the limit on the driving rod 72, so that the limit rod can extend into the inner cavity of the carrying box 31 and abut against the extension plate 76, thereby driving the tool 5 in the tool changing seat 342 to be gradually sent into the mincing bin 1, so as to avoid the situation where the tool 5 in the mincing bin 1 is missing after the tool change is completed, simplifying the replacement work of the tool 5 in the mincing structure, and improving the reliability of the system.

[0103] 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. An internally regulated mincing system, comprising a knife shaft, a knife (5) and a controller, characterized in that: The tool (5) and the tool shaft are detachably connected and the shell structure of the device where the tool shaft is located is called a mincing bin (1). The controller is electrically connected to a tool changing mechanism (3), a separation mechanism (4) and a pushing component (7) and: A separation mechanism (4) is arranged on a side wall of the mincing bin (1) and has a separation portion abutting against a cutter (5) in the mincing bin (1); A knife changing mechanism (3) is arranged below the mincing bin (1), is communicated with the inner cavity of the mincing bin (1) and is used to store the knife (5), and has an operating portion for a user to operate to change the knife (5); A pushing assembly (7), which is mounted on the knife changing mechanism (3) and is used to push the knife (5) from the knife changing mechanism (3) into the mincing bin (1); The controller is provided with a function button and a contact sensor, wherein the contact sensor is located at the end of the action path of the pushing component (7) and is configured as follows: If a trigger signal from a function key is received, the separation mechanism (4) is controlled to push the tool (5) into the tool changing mechanism (3); If a contact signal fed back by the contact sensor is received, the separation mechanism (4) is controlled to push the tool (5) toward the tool shaft.

2. The internally regulated mincing system according to claim 1, characterized in that: The end of the knife shaft is fixedly connected to a torsion block (21), and the torsion block (21) is obtained by twisting a prism around a central axis. The knife (5) is provided with a mounting hole adapted to the torsion block (21). The separation mechanism (4) comprises a sliding plate (41), a connecting rod (42), an abutment ring (43), a threaded rod (44) and a driving motor (45). The sliding plate (41) is slidingly connected to the inner cavity of the mincing bin (1), and the side wall of the sliding plate (41) abuts against the inner wall of the mincing bin (1). The side wall of the sliding plate (41) facing the torsion block (21) is fixedly connected to an abutment block (46). The end of the torsion block (21) is rotatably connected to the abutment block (46). The connecting rod (42) is fixedly connected to the side wall edge of the sliding plate (41) facing the torsion block (21); the abutting ring (43) is fixedly connected to the connecting rod (42) and is sleeved on the knife shaft, and the abutting ring (43) is a separation part and abuts against the knife disc of the knife (5); the driving motor (45) is fixedly connected to the outer wall of the mincing bin (1), and the output end of the driving motor (45) is horizontally extended toward the sliding plate (41); the threaded rod (44) is fixedly connected to the output shaft of the driving motor (45); an extension block (47) is fixedly connected to the side wall of the sliding plate (41), and the extension block (47) extends out of the mincing bin (1) and is threadedly sleeved on the threaded rod (44).

3. The internally regulated mincing system according to claim 2, characterized in that: The knife-changing mechanism (3) comprises a carrying box (31) located below the mincing bin (1), a sliding rheostat (32), a connecting block (33) and a plurality of receiving members (34) for storing knives (5); a knife-feeding opening for transferring the knives (5) is provided at the upper end of the carrying box (31) and a partition (35) for dividing the inner cavity into two upper and lower cavities is fixedly connected to the inner wall; the sliding rheostat (32) is fixedly connected to the inner wall of the lower cavity of the carrying box (31), and the sliding plate of the sliding rheostat (32) is slidably arranged along the length direction of the mincing bin (1); the connecting block (33) is fixedly connected to the sliding plate of the sliding rheostat (32), and the connecting block (33) is fixedly connected to the sliding plate of the sliding rheostat (32). The upper end of the supporting member (33) extends into the upper cavity of the carrying box (31) and is connected to any one group of receiving members (34). Multiple groups of receiving members (34) are slidably connected to the upper cavity of the carrying box (31) along the length direction of the shredder bin (1). A push rod (36) is connected to any one group of receiving members (34), and the push rod (36) extends out of the carrying box (31). Multiple groups of receiving members (34) are linked to each other by setting a linkage rod (37). The pushing assembly (7) is set on the inner wall of the upper cavity of the carrying box (31), and the pushing assembly (7) is in contact with the receiving member (34). A current sensor (38) is sleeved on the cable of the sliding rheostat (32).

4. The internally regulated mincing system according to claim 3, characterized in that: A display screen is provided on the outer wall of the mincing bin, and the current sensor (38) and the display screen are electrically connected to the controller respectively; Among them, the controller configuration is: Establishing a database, and recording in the database: the detection value of the current sensor (38), the resistance value of the sliding rheostat and the data table of the position of each receiving member; Based on the detection value of the current sensor (38), a table is looked up to obtain the receiving part located below the knife edge, and a database is searched to match the type of the tool (5) pre-stored in the corresponding receiving part, and the type is displayed on a display screen.

5. The internally regulated mincing system according to claim 3, characterized in that: The pushing assembly (7) comprises a sliding column (74) and a driving rod (72); the sliding column (74) is slidably connected to the side wall of the carrying box (31); an extension plate (76) is fixedly connected to the receiving member (34); the driving rod (72) is slidably passed through the sliding column (74) and extends into the inner cavity of the carrying box (31), and the driving rod (72) abuts against the extension plate (76).

6. The internally regulated mincing system according to claim 5, characterized in that: A limit assembly for limiting the sliding of the driving rod (72) is arranged on the inner wall of the carrying box (31), and the limit assembly includes a second driving motor (71), a limit plate (73) and a connecting column (75). The second driving motor (71) is fixedly connected to the inner wall of the carrying box (31), and the output shaft of the second driving motor (71) is arranged horizontally toward the inner cavity of the carrying box (31). The output shaft of the second driving motor (71) is fixedly connected to a driving column (77), and the outer surface of the driving column (77) is fixedly connected to the driving column (77). A tooth structure is arranged on the wall, the connecting column (75) is rotatably connected to the inner wall of the carrying box (31), the side wall edge of the limiting plate (73) is fixedly connected to the connecting column (75), and the limiting plate (73) abuts against the driving rod (72), the outer wall of the connecting column (75) is provided with a tooth structure, and the tooth structures between the driving column (77) and the connecting column (75) abut and mesh with each other, and a monitoring component (6) for contacting and limiting the driving rod (72) is arranged in the inner cavity of the carrying box (31).

7. The internally regulated mincing system according to claim 6, characterized in that: The receiving member (34) comprises a support seat (341) and a tool change seat (342); the support seat (341) is slidably connected to the inner wall of the carrying box (31); the interior of the support seat (341) is hollow and the opening is upward; the tool change seat (342) is slidably connected to the inner cavity of the support seat (341); the extension plate (76) is fixedly connected to the side wall of the tool change seat (342); a through opening is opened at the bottom of the support seat (341); the monitoring component (6) comprises two conductive touch plates (61) and two conductive blocks ( The two conductive touch plates (61) are respectively fixedly mounted at two ends of the bottom of the tool changer (342), the two conductive blocks (62) are respectively connected to the upper surface of the partition (35), and the two conductive blocks (62) are respectively located on both sides of the connecting block (33), and the two conductive blocks (62) are both located below the knife receiving edge, the two conductive touch plates (61) are respectively in contact with the two conductive blocks (62), the tool (5) dropped into the tool changer is in contact with the inner walls on both sides of the tool changer (342), and the tool (5) is conductive, and the controller is configured as follows: If an electrical signal fed back from the conduction between the two conductive blocks (62) is received, the second driving motor (71) is controlled to rotate and drive the limiting plate (73) to open the limit on the driving rod (72).

8. The internally regulated mincing system according to claim 7, characterized in that: A material collecting mechanism (8) for limiting the flow of materials into the support seat (341) is provided at the knife-receiving edge, the material collecting mechanism (8) comprising a fixed block (81), a sliding shield plate (82) and a material collecting plate (83), the fixed block (81) being fixedly connected to the inner wall of the bearing box (31), the interior of the fixed block (81) being hollow and the opening facing the knife-receiving edge, the sliding shield plate (82) being slidingly connected inside the fixed block (81), the side wall of the sliding shield plate (82) being fixedly connected to a guide rod (84), the guide rod (83) The end of the rod (84) extends out of the carrying box (31), the collecting plate (83) is fixedly connected to the lower end of the sliding shield (82), and the upper surface of the collecting plate (83) is arranged in an arc-shaped concave, and the length of the collecting plate (83) is greater than the length of the sliding shield (82), the collecting plate (83) is fixedly connected to a waste pipe at the lowest point of its arc-shaped concave surface, and the waste pipe extends out of the carrying box (31), and a buffer mechanism (9) is arranged below the collecting plate (83) for preventing the tool (5) from being stuck on the inner wall of the support seat (341).

9. The internally regulated mincing system according to claim 8, characterized in that: The buffer mechanism (9) comprises a connecting rod (91), a driving motor (3) (92), an adjustable potentiometer (93), a magnetic block (94) and a sliding block (95); a sliding groove for sliding the sliding block (95) is horizontally opened on the inner wall of the carrying box (31); an extension rod is fixedly connected to the side wall of the sliding block (95), and the extension rod is slidingly connected in the sliding groove; the connecting rod (91) is rotatably connected to the inner wall of the carrying box (31), and the two ends of the connecting rod (91) are rotatably connected to the sliding shield (82) and the sliding block (95) respectively; the interior of the sliding block (95) is hollow and the opening faces the knife edge; the driving motor (3) (92) is fixedly connected to the sliding block (95) The adjustable potentiometer (93) is fixed in the inner cavity of the sliding block (95), and the adjusting part of the adjustable potentiometer (93) is connected to the output shaft of the driving motor (92). The magnetic block (94) is fixed at the opening of the sliding block (95) and is connected to the adjustable potentiometer (93) through a wire. The interior of the abutment block (46) is hollow and the opening is facing the torsion block (21). A laser distance sensor is fixedly connected in the inner cavity of the abutment block (46), and the detection end of the laser distance sensor is facing the torsion block (21). The laser distance sensor and the driving motor (92) are electrically connected to the controller respectively. Among them, the controller configuration is: If the trigger signal of the function key is received and meets the preset tool change request, the adjustable potentiometer (93) is powered on; If the detection value fed back by the laser distance measuring sensor meets the preset tool (5) correction condition, the drive motor three (92) is controlled to rotate forward first and last for a period of time t1, and then rotate reversely and last for a period of time t1.

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