Improved automatic corner cutting machine

Abstract

The utility model relates to paperboard processing equipment's technical field especially relates to an improved automatic corner cutting machine, include: bottom frame, door type guide frame, movable frame: vertical sliding connection is in the door type guide frame surface, and movable frame bottom fixedly connected has the corner cutter holder, slide: symmetrical horizontal reverse sliding connection is in the strip -shaped groove inner wall of bottom frame top, by the translation adjustment disc drive of bottom frame top, limit block: rotary connection is in the slide top, by the angle adjustment disc drive on translation adjustment disc, edge angle collecting device: set up in bottom frame top, by this, the utility model's corner cutting machine angle adjusts nimble accurate, supports non - standard angle cutting, and the adjustment does not need manual repeated measurement, still can independently adjust limit block position and angle, can automatically collect the edge angle material, need not manual cleaning, and energy -conserving with movable frame linkage and stable collection, the structure humanization increases magnetic attraction triangular seat and the board cavity, and the operation is safe and labor saving, and can be positioned after the adjustment fast, transmission is stable and reliable, guarantees the long -term operation of equipment.

Description

Technical Field

[0001] This utility model relates to the technical field of cardboard processing equipment, and in particular to an improved automatic corner cutting machine. Background Technology

[0002] In the cardboard processing of industries such as packaging and printing, corner cutting is a key process to ensure the accuracy of subsequent folding and forming of cardboard. As a core piece of equipment, the performance of the cardboard corner cutting machine directly affects production efficiency and product quality.

[0003] Patent application CN221641046U discloses a cardboard corner cutting machine. Although this corner cutting machine can perform corner cutting operations, it still has many technical pain points that need to be solved in practical applications, making it difficult to meet the needs of modern flexible production.

[0004] On the one hand, the cardboard corner cutting machine has a very limited function, only able to cut the corners of cardboard, and lacks the ability to perform integrated post-processing of the cut cardboard. The cardboard scraps generated during the cutting process are usually scattered on the equipment table or the ground, requiring regular manual cleaning, which not only easily causes a messy working environment, but may also affect the normal operation of the equipment due to the accumulation of scraps.

[0005] On the other hand, this corner cutting machine has obvious limitations in terms of flexibility and convenience in adjusting the corner angle. The corner cutting machine changes the size of the cardboard extending into the cutting area by adjusting the horizontal position of the limit seat, thereby adjusting the size of the corner. However, this adjustment method can only change the length of the cutting edge and cannot break through the limitation of fixed angles. Most equipment on the market can only achieve 90° right angle cutting, and a few adjustable models can only switch between 2-3 preset fixed angles (such as 45° and 60°). It cannot meet the cutting needs of irregularly shaped packaging boxes, craft cardboard and other non-standard angles (such as 30° and 50°), and its applicable scenarios are extremely limited.

[0006] In addition, the angle adjustment process relies on manual operation. Operators need to loosen the fixing bolts of the limit seat, repeatedly measure the horizontal displacement with tools such as a tape measure to calculate the angle, adjust it, and then tighten it again. The whole process is time-consuming and laborious. Not only is it easy for angle deviations to occur due to manual measurement errors, affecting the consistency of batch production, but it is also difficult to adapt to the rapid production changeover requirements of small batch and multi-variety orders, which seriously restricts the improvement of production efficiency. Utility Model Content

[0007] This utility model aims to at least partially solve one of the technical problems in the related art.

[0008] Therefore, the purpose of this utility model is to propose an improved automatic corner cutting machine. The corner cutting machine of this utility model has flexible and precise angle adjustment, supports non-standard angle cutting, and does not require repeated manual measurement for adjustment. It can also independently adjust the position and angle of the limit block. It can automatically collect scrap materials without manual cleaning, and is linked with the movable frame for energy saving and stable collection. The structure is user-friendly, with the addition of a magnetic triangular seat and a plate placement cavity, making operation safe and labor-saving, and enabling quick positioning after adjustment. The transmission is stable and reliable, ensuring long-term operation of the equipment.

[0009] To achieve the above objectives, this utility model proposes an improved automatic corner-cutting machine, comprising:

[0010] bottom frame;

[0011] Portal guide frame: installed at the top of the bottom frame;

[0012] Movable frame: vertically slidably connected to the surface of the portal frame, the top of the movable frame is fixedly connected to the output end of the top cylinder of the portal frame, and a corner cutting knife holder is fixedly connected to the bottom of the movable frame;

[0013] Slide: Symmetrically and horizontally slidingly connected to the inner wall of the strip groove at the top of the bottom frame, and located on one side of the portal frame, driven by the translation adjustment plate at the top of the bottom frame;

[0014] Limiting block: Rotatably connected to the top of the slide block and driven by the angle adjustment disc on the translation adjustment disc;

[0015] Corner collection device: installed on the top of the bottom frame and located on the other side of the portal frame, the corner collection device is connected to the movable frame.

[0016] In addition, the improved automatic corner cutting machine proposed in the above application may also have the following additional technical features:

[0017] Specifically, the translation adjustment disk includes an outer drive disk, which is rotatably connected to the inner wall of the groove at the top of the bottom frame. The top of the outer drive disk is evenly provided with finger holes. A first hollow worm gear is rotatably connected to the inner wall of the bottom frame at a position corresponding to the position of the outer drive disk and is connected to the bottom of the outer drive disk. A bidirectional reciprocating screw is rotatably connected to one side of the first hollow worm gear. One end of each of the two sets of slides penetrates into the interior of the bottom frame and is threaded to the outer surface of the bidirectional reciprocating screw. A first worm wheel is provided at the center of the surface of the bidirectional reciprocating screw and meshes with the first hollow worm gear.

[0018] The inner wall of the slide is rotatably connected to a rotating shaft. A limit block is fixedly connected to one end surface of the rotating shaft located outside the slide. A second worm wheel is fixedly connected to one end surface of the rotating shaft located inside the slide. A second hollow worm is rotatably connected to one side of the second worm wheel and they mesh with each other.

[0019] The angle adjustment disc includes a hollow fixing rod located inside a first hollow worm gear and slidably connected to the inner wall of the first hollow worm gear. One end of the hollow fixing rod extends through the bottom of the first hollow worm gear and is fixedly connected to the inner wall of the bottom frame. The other end of the hollow fixing rod extends through the mounting groove of the outer drive disc and is fixedly connected to an inner disc body. A drive shaft is rotatably connected to the inner wall of the hollow fixing rod. One end of the drive shaft extends through the bottom of the first hollow worm gear and is integrally formed with a worm gear portion. A drive key is rotatably connected to one side of the worm gear portion. A third worm wheel is provided at the center of the surface of the drive key and meshes with the worm gear portion. Both ends of the drive key are horizontally slidably connected to the inner walls of two sets of second hollow worm gears and are keyed together. The other end of the drive shaft extends through the mounting groove of the inner disc body and is fixedly connected to an inner drive disc. The inner drive disc is slidably connected to the inner wall of the mounting groove of the inner disc body. A handle groove is provided on the top of the inner drive disc.

[0020] Specifically, the bottom wall of the groove at the top of the bottom frame, corresponding to the bottom position of the outer drive disk, and the bottom wall of the mounting groove of the inner disk, corresponding to the bottom position of the inner drive disk, are respectively provided with a locking hole and an elastic locking head, which are locked and fixed together.

[0021] Specifically, the outer drive disk and the inner drive disk are both integrally formed with pointer portions on their surfaces, and the bottom frame and the top of the inner disk are both provided with annular scale lines. The tops of the outer drive disk and the inner drive disk are both on the same horizontal plane as the top of the bottom frame.

[0022] Specifically, the corner collection device includes a belt conveyor, a guide hole, a lifting shaft, a toothed rod frame, a drive gear, a one-way transmission, a collection trough, and an inclined guide section, wherein,

[0023] The belt conveyor is located at the top of the base frame and on the side of the gantry guide away from the slide. The surface of the conveyor belt is at the same level as the top of the base frame. The guide holes are symmetrically opened at the top of the base frame and located outside the conveyor belt. The lifting shaft is vertically slidably connected to the inner wall of the guide hole. One end of the lifting shaft passes through the top of the base frame and is threadedly connected to the inner wall of the connecting lug on the movable frame. The other end of the lifting shaft passes through the interior of the base frame and is integrally formed with a toothed rod frame. The drive gear is rotatably connected to the inner wall of the base frame and is connected to the central shaft of the main drive roller of the belt conveyor located inside the base frame through a one-way transmission. The drive gear is located on one side of the toothed rod frame and meshes with the teeth on the surface of the toothed rod frame. The collection trough is opened at the top of the base frame and located outside the belt conveyor. The inner wall of the collection trough near the belt conveyor is integrally formed with an inclined guide section.

[0024] Specifically, the bottom frame also includes a magnetic triangular seat, which is symmetrically and oppositely magnetically fixed to the surface of the bottom frame. The bottom frame and the two sets of magnetic triangular seats are all provided with a plate-laying groove on the surface away from the material collection trough. The multiple sets of plate-laying grooves are interconnected and form a rectangular plate-laying cavity.

[0025] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

[0026] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0027] 1. The angle adjustment is flexible and precise, adapting to various scenarios.

[0028] 1. Breaking through the fixed angle limitations of traditional equipment, it supports non-standard angle (such as 30°, 50°) cutting. The limit block can be rotated through the angle adjustment plate to meet the diverse processing needs of irregularly shaped packaging boxes, craft cardboard, etc., and solve the limitation of traditional equipment that can only switch 2-3 preset angles.

[0029] 2. The adjustment process does not require manual loosening of bolts or repeated measurements. It can be easily operated through the finger holes of the outer drive plate and the handle groove of the inner drive plate. With the pointer and the circular scale, the angle and position can be precisely controlled, reducing manual measurement errors, ensuring consistency in batch production, and adapting to rapid production changeover for small batches and multi-variety orders, thereby improving production efficiency.

[0030] 3. The translation adjustment dial and the angle adjustment dial operate independently, and can respectively realize the horizontal position adjustment (synchronous inward / outward movement) and angle adjustment of the limit block. The adjustment logic is clear and the operation does not interfere with each other, further improving the ease of use.

[0031] II. Achieve automatic collection of scrap materials and optimize the production environment and processes.

[0032] 1. The integrated edge and scrap collection device eliminates the need for manual cleaning of scattered cardboard edges and scraps, avoiding a cluttered working environment caused by the accumulation of edges and scraps, while also preventing edges and scraps from affecting the normal operation of the equipment and reducing labor maintenance costs.

[0033] 2. The scrap collection device is linked with the movable frame. The lifting action of the movable frame when it is reset drives the belt conveyor. No additional power source is required, which is energy-saving and efficient. It can automatically transport scraps to the collection trough, realize the integration of "cutting-collection", and simplify the production process.

[0034] 3. The surface of the belt conveyor is flush with the top of the bottom frame. Combined with the inclined guide design, it can ensure that the scrap material is transported smoothly and falls into the collection trough smoothly, avoiding scrap material residue or jamming, and improving collection stability.

[0035] III. The human-centered structural design enhances ease of operation and use.

[0036] 1. A magnetic triangular base is added to the bottom frame, which can be fixed to the surface of the bottom frame by magnetic attraction, which can increase the cardboard placement area and improve the stability of cardboard placement; at the same time, the bottom frame and the magnetic triangular base are connected to the cardboard placement groove to form a rectangular cardboard placement cavity, which is convenient for temporary storage of cardboard, reduces the number of cardboard handlings during operation, and improves operational efficiency.

[0037] 2. The tops of the outer and inner drive discs are flush with the top of the bottom frame to avoid protruding structures affecting operational safety; the design of the finger holes and handle grooves conforms to ergonomics, making it convenient for operators to exert force to turn the adjustment discs and reducing operator fatigue.

[0038] 3. Both the translation adjustment plate and the angle adjustment plate are equipped with a snap-fit ​​structure with elastic clips and clip holes. After adjustment, they can be quickly positioned and fixed to prevent the adjustment parts from shifting during equipment operation, ensuring processing accuracy. At the same time, it reduces the locking steps after adjustment and improves the ease of operation.

[0039] IV. The transmission structure is stable and reliable, ensuring long-term operation of the equipment.

[0040] 1. The worm gear-worm wheel transmission (such as the first hollow worm and the first worm wheel, the second hollow worm and the second worm wheel) is adopted. The transmission ratio is stable, the power can be transmitted accurately, the transmission error during the adjustment process is reduced, and the accuracy of the position and angle adjustment of the limit block is guaranteed.

[0041] 2. The transmission key and the second hollow worm gear are connected by a key and can slide horizontally, which ensures stable power transmission and can adapt to the distance changes when the slide moves horizontally, avoiding jamming or damage to the transmission structure and improving the stability of equipment operation.

[0042] 3. The application of a one-way drive (ratchet type) ensures that the belt conveyor is driven when the movable frame rises, and the cutting action is not affected when it descends, thus avoiding transmission interference and ensuring the reliability of the coordinated operation of various components of the equipment. Attached Figure Description

[0043] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0044] Figure 1 This is a schematic diagram of an improved automatic corner cutting machine according to the present invention;

[0045] Figure 2 This is a schematic diagram of the slide structure in an improved automatic corner cutting machine according to this utility model;

[0046] Figure 3 This is a schematic diagram of the translation adjustment disc structure in an improved automatic corner cutting machine according to this utility model;

[0047] Figure 4 This is a schematic diagram of the corner collection device in an improved automatic corner cutting machine according to this utility model;

[0048] Figure 5 This is a schematic diagram of the drive gear structure in an improved automatic corner cutting machine according to this utility model.

[0049] As shown in the figure:

[0050] 1. Base frame; 2. Gantry frame; 3. Movable frame; 31. Connecting lug; 4. Cylinder; 5. Corner cutter holder; 6. Slide seat; 7. Translation adjustment plate; 8. Limit block; 9. Angle adjustment plate; 10. Edge and corner collection device;

[0051] 71. External drive disc; 72. Finger hole; 73. First hollow worm gear; 74. Bidirectional reciprocating screw; 75. First worm wheel;

[0052] 81. Rotating shaft; 82. Second worm gear; 83. Second hollow worm;

[0053] 91. Hollow fixed rod; 92. Inner disc; 93. Drive shaft; 94. Inner drive disc; 95. Handle groove; 96. Worm gear; 97. Third worm gear; 98. Transmission key;

[0054] 100. Slot; 200. Pointer section; 300. Circular scale;

[0055] 101. Belt conveyor; 102. Guide hole; 103. Lifting shaft; 104. Toothed rod frame; 105. Drive gear; 106. One-way transmission; 107. Collection trough; 108. Inclined guide section;

[0056] 11. Magnetic triangular base; 111. Plate placement slot; 112. Rectangular plate placement cavity. Detailed Implementation

[0057] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. Rather, the embodiments of the present invention include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0058] An improved automatic corner cutting machine according to an embodiment of the present invention will now be described with reference to the accompanying drawings.

[0059] like Figures 1-5 As shown, an improved automatic corner-cutting machine according to an embodiment of the present invention includes:

[0060] Bottom frame 1;

[0061] 2. Portal guide frame: installed at the top of the bottom frame 1;

[0062] Movable frame 3: vertically slides on the surface of the gantry guide 2. The top of the movable frame 3 is fixedly connected to the output end of the top cylinder 4 of the gantry guide 2. The bottom of the movable frame 3 is fixedly connected to the corner cutting knife holder 5.

[0063] Slide 6: Symmetrically and horizontally sliding in opposite directions, it is connected to the inner wall of the strip groove at the top of the bottom frame 1 and is located on one side of the portal frame 2. It is driven by the translation adjustment plate 7 at the top of the bottom frame 1.

[0064] Limiting block 8: Rotatably connected to the top of slide block 6, driven by angle adjusting disk 9 on translation adjusting disk 7;

[0065] Corner collection device 10: It is set on the top of the bottom frame 1 and located on the other side of the portal frame 2. The corner collection device 10 is connected to the movable frame 3.

[0066] Specifically, the angle adjustment of the corner cutting machine of this utility model is flexible and precise, supports non-standard angle cutting, and the adjustment does not require repeated manual measurement. It can also independently adjust the position and angle of the limit block 8. It can automatically collect scrap materials without manual cleaning. It is linked with the movable frame 3 and is energy-saving, with stable collection. The structure is user-friendly, with the addition of a magnetic triangular seat 11 and a rectangular plate placement cavity 112. The operation is safe and labor-saving, and it can be quickly positioned after adjustment. The transmission is stable and reliable, ensuring the long-term operation of the equipment.

[0067] Its overall operating logic is as follows: the equipment is supported by the base frame 1, the portal frame 2 provides sliding guidance for the movable frame 3, the corner cutting knife holder 5 is driven by the cylinder 4 to complete the cardboard cutting, the translation adjustment plate 7 and the angle adjustment plate 9 respectively control the position and angle of the limit block 8 to adapt to different processing requirements, and the edge collection device 10 automatically cleans up the edge scraps as the movable frame 3 resets. All components work together to realize the complete processing flow of "positioning-cutting-collection".

[0068] The working principle of its core components is as follows:

[0069] (a) Cutting execution system (cylinder 4, movable frame 3, corner cutting blade holder 5)

[0070] When cardboard needs to be cut, cylinder 4 is activated, and its output end pushes the movable frame 3 to slide vertically downward along the portal guide 2;

[0071] The movable frame 3 synchronously drives the bottom fixed corner cutting blade holder 5 to descend, and the corner cutting blade holder 5 completes the corner cutting action after contacting the cardboard;

[0072] After the cutting is completed, the cylinder 4 drives the movable frame 3 to reset and rise, and the corner cutting tool holder 5 returns to the initial position with the movable frame 3, waiting for the next cutting command.

[0073] (II) Limit adjustment system (translation adjustment plate 7, angle adjustment plate 9, slide block 6, limit block 8)

[0074] 1. Horizontal position adjustment (drive by translation adjustment dial 7)

[0075] The operator inserts their finger into the finger hole 72 of the external drive disk 71 and rotates the external drive disk 71;

[0076] The rotation of the external drive disk 71 drives the first hollow worm gear 73 connected to the bottom to rotate synchronously.

[0077] The first hollow worm 73 meshes with the first worm wheel 75 on the bidirectional reciprocating screw 74, driving the bidirectional reciprocating screw 74 to rotate;

[0078] Two sets of slide blocks 6 are threadedly connected to the surface of the bidirectional reciprocating screw 74 and are driven by the rotation of the bidirectional reciprocating screw 74 to slide horizontally inward or outward simultaneously (along the top strip groove of the bottom frame 1).

[0079] The slide block 6 moves the top limiting block 8, thereby adjusting the horizontal position of the limiting block 8 to meet the positioning requirements of different sized cardboard.

[0080] 2. Angle adjustment (angle adjustment dial 9 drive)

[0081] The operator puts their hand into the handle groove 95 of the inner drive disk 94 and turns the inner drive disk 94.

[0082] The inner drive disc 94 drives the transmission shaft 93 to rotate, and the worm gear 96 at one end of the transmission shaft 93 rotates synchronously.

[0083] The worm gear 96 meshes with the third worm wheel 97 on the transmission key 98, driving the transmission key 98 to rotate;

[0084] The transmission key 98 is connected to two sets of second hollow worm gears 83 via a key, driving the second hollow worm gears 83 to rotate synchronously;

[0085] The second hollow worm gear 83 meshes with the second worm wheel 82 on the rotating shaft 81 inside the slide block 6, driving the rotating shaft 81 to rotate.

[0086] The rotating shaft 81 drives the top fixed limit block 8 to rotate, thereby adjusting the angle of the limit block 8 to meet different angle cutting requirements;

[0087] During adjustment, the pointer 200 rotates with the outer drive disk 71 and the inner drive disk 94, and in conjunction with the annular scale line 300 on the bottom frame 1 and the inner disk 92, the adjustment angle and position can be accurately read; at the same time, the elastic clip engages with the clip hole 100 to ensure that the position of the component is fixed after adjustment.

[0088] (III) Edge and corner collection system (belt conveyor 101, lifting shaft 103, toothed rod frame 104, drive gear 105, etc.)

[0089] After the cutting is completed, the movable frame 3 rises and resets, and the connecting ears 31 on its surface synchronously drive the lifting shaft 103 to rise vertically along the guide hole 102 of the bottom frame 1.

[0090] The toothed rod frame 104 at the bottom of the lifting shaft 103 rises with the lifting shaft 103, and the teeth on the surface of the toothed rod frame 104 mesh with the drive gear 105, causing the drive gear 105 to rotate.

[0091] The drive gear 105 is connected to the central shaft of the main drive roller of the belt conveyor 101 through the one-way transmission 106, which drives the main drive roller to rotate, thereby driving the conveyor belt of the belt conveyor 101 to run.

[0092] The scraps generated from cutting fall onto the conveyor belt and move with the conveyor belt toward the collection trough 107;

[0093] When the scrap material moves to the position of the collection trough 107, it slides into the inside of the collection trough 107 along the inclined guide 108 under the action of gravity, thus completing the collection of the scrap material.

[0094] When the movable frame 3 descends for cutting, the lifting shaft 103 descends with the movable frame 3, and the toothed rod frame 104 drives the drive gear 105 to rotate in the opposite direction. However, the one-way transmission device 106 only allows power to be transmitted in one direction. At this time, the belt conveyor 101 does not run to avoid affecting the cutting action.

[0095] (iv) Auxiliary support system (magnetic triangular seat 11, plate placement groove 111)

[0096] The magnetic triangular base 11 is symmetrically and oppositely fixed to the surface of the base frame 1 by magnetic attraction, which expands the cardboard placement area and improves the stability of the cardboard when it is placed.

[0097] The bottom frame 1 and the two sets of magnetic triangular seats 11 are provided with a board placement slot 111 at the end away from the material collection trough 107. Multiple sets of board placement slots 111 are interconnected to form a rectangular board placement cavity 112, which can be used to temporarily store cardboard to be processed or processed, making it convenient for operators to pick up and put in, and improving work efficiency.

[0098] In one embodiment of this utility model, such as Figures 1-5As shown, the translation adjustment disk 7 includes an outer drive disk 71, which is rotatably connected to the inner wall of the groove at the top of the bottom frame 1. The top of the outer drive disk 71 is evenly provided with finger holes 72. The inner wall of the bottom frame 1 is rotatably connected to the outer drive disk 71 at a position corresponding to the outer drive disk 71, and is connected to the bottom of the outer drive disk 71. A bidirectional reciprocating screw 74 is rotatably connected to one side of the first hollow worm 73. One end of each of the two sets of slide blocks 6 penetrates into the interior of the bottom frame 1 and is threaded to the outer surface of the bidirectional reciprocating screw 74. A first worm wheel 75 is provided at the center of the surface of the bidirectional reciprocating screw 74 and meshes with the first hollow worm 73.

[0099] A rotating shaft 81 is rotatably connected to the inner wall of the slide 6. A limit block 8 is fixedly connected to one end surface of the rotating shaft 81 located outside the slide 6. A second worm gear 82 is fixedly connected to one end surface of the rotating shaft 81 located inside the slide 6. A second hollow worm 83 is rotatably connected to one side of the second worm gear 82 and they mesh with each other.

[0100] The angle adjustment disc 9 includes a hollow fixing rod 91, which is located inside the first hollow worm gear 73 and slidably connected to the inner wall of the first hollow worm gear 73. One end of the hollow fixing rod 91 extends through the bottom of the first hollow worm gear 73 and is fixedly connected to the inner wall of the base frame 1. The other end of the hollow fixing rod 91 extends into the mounting groove of the outer drive disc 71 and is fixedly connected to the inner disc body 92. A drive shaft 93 is rotatably connected to the inner wall of the hollow fixing rod 91. One end of the drive shaft 93 extends through the bottom of the first hollow worm gear 73 and is integrally formed. The device is equipped with a worm gear section 96, and a transmission key 98 is rotatably connected to one side of the worm gear section 96. A third worm wheel 97 is provided at the center of the surface of the transmission key 98 and meshes with the worm gear section 96. The two ends of the transmission key 98 are horizontally slidably connected to the inner walls of two sets of second hollow worm gears 83 and are keyed together. The other end of the transmission shaft 93 passes through the mounting groove of the inner disc body 92 and is fixedly connected to an inner drive disc 94. The inner drive disc 94 is slidably connected to the inner wall of the mounting groove of the inner disc body 92. A handle groove 95 is provided on the top of the inner drive disc 94.

[0101] Specifically, the structure and connection relationship of the translation adjustment plate 7, the slide 6, and the angle adjustment plate 9 will be further explained.

[0102] In one embodiment of this utility model, such as Figures 1-5 As shown, the bottom wall of the groove at the top of the bottom frame 1, corresponding to the bottom position of the outer drive disk 71, and the bottom wall of the mounting groove of the inner disk 92, corresponding to the bottom position of the inner drive disk 94, are respectively provided with a locking hole 100 and an elastic locking head, which are locked and fixed together.

[0103] It should be noted that the card holes 100 described in this embodiment are respectively arranged around the bottom wall of the groove and the mounting groove, and the number of elastic card heads at the bottom of the outer drive disk 71 and the inner disk 92 is set to one set.

[0104] Specifically, both the outer drive disk 71 and the inner disk 92 are equipped with a snap-fit ​​structure with a flexible snap-fit ​​head and a snap-fit ​​hole 100. After adjustment, they can be quickly positioned and fixed to prevent the adjustment parts from shifting during equipment operation, ensuring processing accuracy. At the same time, it reduces the locking steps after adjustment and improves the ease of operation.

[0105] In one embodiment of this utility model, such as Figures 1-5 As shown, the pointer portion 200 is integrally formed on the surface of both the outer drive disk 71 and the inner drive disk 94, and the bottom frame 1 and the top of the inner disk 92 are both provided with annular scale lines 300. The tops of both the outer drive disk 71 and the inner drive disk 94 are on the same horizontal plane as the top of the bottom frame 1.

[0106] Specifically, the pointer 200 works in conjunction with the circular scale 300 to precisely control the angle and position, reduce human measurement errors, ensure consistency in batch production, and adapt to rapid changeover for small-batch, multi-variety orders, thereby improving production efficiency.

[0107] In one embodiment of this utility model, such as Figures 1-5 As shown, the corner collection device 10 includes a belt conveyor 101, a guide hole 102, a lifting shaft 103, a toothed rod frame 104, a drive gear 105, a one-way transmission 106, a collection trough 107, and an inclined guide section 108, wherein,

[0108] The belt conveyor 101 is installed on the top of the base frame 1 and located on the side of the gantry guide 2 away from the slide block 6. The surface of the conveyor belt of the belt conveyor 101 is at the same level as the top of the base frame 1. Guide holes 102 are symmetrically opened on the top of the base frame 1 and located on the outside of the conveyor belt. The lifting shaft 103 is vertically slidably connected to the inner wall of the guide hole 102. One end of the lifting shaft 103 passes through the top of the base frame 1 and is threadedly connected to the inner wall of the connecting ear 31 on the movable frame 3. The other end of the lifting shaft 103 passes through the interior of the base frame 1 and is integrally formed. A toothed rod frame 104 is provided, and a drive gear 105 is rotatably connected to the inner wall of the bottom frame 1. It is connected to the central shaft of the main drive roller of the belt conveyor 101 located inside the bottom frame 1 through a one-way transmission 106. The drive gear 105 is located on one side of the toothed rod frame 104 and meshes with the teeth on the surface of the toothed rod frame 104. The material collection trough 107 is opened at the top of the bottom frame 1 and is located outside the belt conveyor 101. An inclined guide part 108 is integrally formed on the inner wall of the material collection trough 107 near the belt conveyor 101.

[0109] It should be noted that the one-way drive 106 described in this embodiment is a ratchet-type one-way drive.

[0110] Specifically, the structure and connection relationship of the corner collection device 10 will be further explained.

[0111] In one embodiment of this utility model, such as Figures 1-5 As shown, the bottom frame 1 also includes a magnetic triangular seat 11. The magnetic triangular seats 11 are symmetrically and oppositely magnetically fixed to the surface of the bottom frame 1. The bottom frame 1 and the two sets of magnetic triangular seats 11 are provided with a plate placement groove 111 on the end surface away from the material collection trough 107. The multiple sets of plate placement grooves 111 are interconnected and form a rectangular plate placement cavity 112.

[0112] Specifically, the magnetic triangular base 11 is symmetrically and oppositely fixed to the surface of the bottom frame 1 by magnetic attraction, which expands the cardboard placement area and improves the stability of the cardboard when it is placed.

[0113] The bottom frame 1 and the two sets of magnetic triangular seats 11 are provided with a board placement slot 111 at the end away from the material collection trough 107. Multiple sets of board placement slots 111 are interconnected to form a rectangular board placement cavity 112, which can be used to temporarily store cardboard to be processed or processed, making it convenient for operators to pick up and put in, and improving work efficiency.

[0114] In summary, this utility model provides an improved automatic corner cutting machine. The corner cutting machine offers flexible and precise angle adjustment, supports non-standard angle cutting, eliminates the need for repeated manual measurements, and allows independent adjustment of the position and angle of the limit block 8. It automatically collects scrap materials without manual cleaning, is linked to the movable frame 3 for energy saving, and ensures stable collection. The structure is user-friendly, incorporating a magnetic triangular seat 11 and a rectangular plate-laying cavity 112, making operation safe and labor-saving, and enabling rapid positioning after adjustment. The transmission is stable and reliable, ensuring long-term operation of the equipment.

[0115] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0116] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0117] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An improved automatic corner-cutting machine, characterized in that, include: Bottom frame (1); Portal guide frame (2): installed on top of the bottom frame (1); Movable frame (3): vertically slidably connected to the surface of the portal frame (2), the top of the movable frame (3) is fixedly connected to the output end of the top cylinder (4) of the portal frame (2), and the bottom of the movable frame (3) is fixedly connected to a corner cutting knife holder (5). Slide (6): symmetrically and horizontally slidingly connected to the inner wall of the strip groove at the top of the bottom frame (1) and located on one side of the portal frame (2), driven by the translation adjustment plate (7) at the top of the bottom frame (1); Limiting block (8): Rotatably connected to the top of the slide (6) and driven by the angle adjustment disk (9) on the translation adjustment disk (7); Corner collecting device (10): set on the top of the bottom frame (1) and located on the other side of the portal frame (2), the corner collecting device (10) is connected to the movable frame (3).

2. The improved automatic corner cutting machine according to claim 1, characterized in that, The translation adjustment disk (7) includes an outer drive disk (71), which is rotatably connected to the inner wall of the groove at the top of the bottom frame (1). The top of the outer drive disk (71) is evenly provided with finger holes (72). The inner wall of the bottom frame (1) is rotatably connected to the position of the outer drive disk (71) and is connected to the bottom of the outer drive disk (71). A bidirectional reciprocating screw (74) is rotatably connected to one side of the first hollow worm (73). One end of each of the two sets of slides (6) penetrates into the bottom frame (1) and is threaded to the outer surface of the bidirectional reciprocating screw (74). A first worm wheel (75) is provided at the center of the surface of the bidirectional reciprocating screw (74) and meshes with the first hollow worm (73). The inner wall of the slide (6) is rotatably connected to a rotating shaft (81). A limit block (8) is fixedly connected to one end surface of the rotating shaft (81) located outside the slide (6). A second worm wheel (82) is fixedly connected to one end surface of the rotating shaft (81) located inside the slide (6). A second hollow worm (83) is rotatably connected to one side of the second worm wheel (82) and they mesh with each other. The angle adjustment disc (9) includes a hollow fixing rod (91), which is located inside the first hollow worm gear (73) and is slidably connected to the inner wall of the first hollow worm gear (73). One end of the hollow fixing rod (91) extends through the bottom of the first hollow worm gear (73) and is fixedly connected to the inner wall of the bottom frame (1). The other end of the hollow fixing rod (91) extends into the mounting groove of the outer drive disc (71) and is fixedly connected to the inner disc body (92). A drive shaft (93) is rotatably connected to the inner wall of the hollow fixing rod (91). One end of the drive shaft (93) extends through the bottom of the first hollow worm gear (73) and is integrally formed. The worm shaft (96) is provided with a worm gear section (96), and a transmission key rod (98) is rotatably connected to one side of the worm gear section (96). A third worm wheel (97) is provided at the center of the surface of the transmission key rod (98) and meshes with the worm gear section (96). The two ends of the transmission key rod (98) are respectively horizontally slidably connected to the inner walls of two sets of second hollow worm gears (83) and keyed. The other end of the transmission shaft (93) passes through the mounting groove of the inner disc body (92) and is fixedly connected to the inner drive disc (94). The inner drive disc (94) is slidably connected to the inner wall of the mounting groove of the inner disc body (92). A handle groove (95) is opened on the top of the inner drive disc (94).

3. The improved automatic corner cutting machine according to claim 2, characterized in that, The bottom wall of the groove at the top of the bottom frame (1) is provided with a card hole (100) and an elastic card head at the corresponding positions of the bottom of the outer drive disk (71) and the bottom wall of the mounting groove of the inner disk body (92) and the corresponding positions of the bottom of the inner drive disk (94). The card hole (100) and the elastic card head are engaged and fixed.

4. The improved automatic corner cutting machine according to claim 2, characterized in that, The outer drive disk (71) and the inner drive disk (94) are both integrally formed with pointer parts (200), and the top of the bottom frame (1) and the inner disk body (92) are both provided with annular scale lines (300). The top of the outer drive disk (71) and the inner drive disk (94) are both on the same horizontal plane as the top of the bottom frame (1).

5. The improved automatic corner cutting machine according to claim 1, characterized in that, The corner collection device (10) includes a belt conveyor (101), a guide hole (102), a lifting shaft (103), a toothed rod frame (104), a drive gear (105), a one-way transmission (106), a collection trough (107), and an inclined guide section (108), wherein, The belt conveyor (101) is located on the top of the base frame (1) and on the side of the portal frame (2) away from the slide (6). The surface of the conveyor belt of the belt conveyor (101) is at the same level as the top of the base frame (1). The guide holes (102) are symmetrically opened on the top of the base frame (1) and located on the outside of the conveyor belt. The lifting shaft (103) is vertically slidably connected to the inner wall of the guide hole (102). One end of the lifting shaft (103) passes through the top of the base frame (1) and is threadedly connected to the inner wall of the connecting ear (31) on the movable frame (3). The other end of the lifting shaft (103) passes through the interior of the base frame (1) and is integrally formed with it. The toothed rod frame (104) is formed and the drive gear (105) is rotatably connected to the inner wall of the bottom frame (1) and connected to the central shaft of the main drive roller of the belt conveyor (101) located inside the bottom frame (1) through a one-way transmission (106). The drive gear (105) is located on one side of the toothed rod frame (104) and meshes with the teeth on the surface of the toothed rod frame (104). The material collection trough (107) is opened on the top of the bottom frame (1) and located outside the belt conveyor (101). The inner wall of the material collection trough (107) near the belt conveyor (101) is integrally formed with an inclined guide (108).

6. The improved automatic corner cutting machine according to claim 1, characterized in that, The bottom frame (1) also includes a magnetic triangular seat (11), which is symmetrically and oppositely magnetically fixed to the surface of the bottom frame (1). The bottom frame (1) and the two sets of magnetic triangular seats (11) are provided with a plate release groove (111) on the end surface away from the material collection trough (107). The multiple sets of plate release grooves (111) are interconnected and form a rectangular plate release cavity (112).

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