Automatic feeding and cutting mechanism of carton corner pasting machine

Abstract

The utility model relates to the technical field of paper box processing, and discloses an automatic feeding and cutting mechanism of a paper box corner pasting machine, which comprises two first fixing frames, a second fixing frame and a cutting knife, adjustable limiting assemblies are arranged between the two supporting frames and the corresponding first fixing frames, a mounting frame is fixedly connected to the upper end of the second fixing frame, air cylinders are fixedly arranged at the positions, close to the front portion and the rear portion, of the upper end of the mounting frame, and the telescopic ends of the two air cylinders penetrate through the mounting frame and are fixedly connected with mounting bases; and a quick disassembly assembly is arranged between the mounting seat and the cut-off tool. According to the paperboard conveying and cutting device, the adjustable limiting assembly is arranged so that raw paperboards of various specifications can be effectively limited, the stability of the paperboards can be kept in the conveying and cutting process, the rapid disassembling assembly is arranged so that the cut-off tool can be rapidly disassembled from the installation base, and replacement and maintenance of the tool are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to paper box processing technical field especially relates to a kind of automatic feeding cutting mechanism of paper box corner pasting machine. BACKGROUND

[0002] In paper box corner pasting process, the treatment of raw paperboard is one of key steps, first, large raw paperboard needs to be cut into small paperboard of appropriate size, these small paperboard is usually cut into multiple paperboard of different specifications according to the design requirement of paper box, then, these paperboard is sent into corner pasting machine to carry out subsequent corner pasting, folding and reinforcing treatment.

[0003] Some prior art relies on single limiting structure or lacks effective adjusting mechanism, so that automatic feeding cutting mechanism has some deficiencies in actual use, especially when processing paperboard of different specifications, paperboard is prone to deviation in conveying process, so as to affect cutting precision and production efficiency, in addition, the existing cutting knife installation system is usually relatively complex, commonly bolted fixed mode is used, so as to cause inconvenience in maintenance and replacement, reduce the flexibility of production line and service life of equipment, therefore, the technical personnel in the art provide a kind of automatic feeding cutting mechanism of paper box corner pasting machine to solve the problems raised in the above background art. SUMMARY

[0004] The utility model provides a kind of automatic feeding cutting mechanism of paper box corner pasting machine to solve the shortcomings in prior art, by being equipped with adjustable limiting component, and then the effective limiting of multiple specifications of raw paperboard can be carried out, so as to maintain the stability of paperboard in conveying and cutting process, by being equipped with quick split component, cutting knife can be quickly detached from mounting seat, facilitate the replacement and maintenance of tool.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of automatic feeding cutting mechanism of paper box corner pasting machine, including two first fixed frame, second fixed frame and cutting knife, the opposite end of two the first fixed frame is all fixedly connected with support frame, adjustable limiting component is arranged between two the support frame and corresponding first fixed frame, the upper end of the second fixed frame is fixedly connected with mounting bracket, the upper end of the mounting bracket is fixedly provided with cylinder at front and back, the telescopic end of two the cylinder is all penetrated mounting bracket and is fixedly connected with mounting seat, quick split component is arranged between the mounting seat and cutting knife;

[0006] The adjustable limiting assembly comprises a limiting frame and two moving lead screws, the screw directions of the two moving lead screws are opposite, both of the moving lead screws are rotationally connected to a corresponding support frame, the outer walls of both of the moving lead screws are threadedly sleeved with a moving sleeve, the opposite ends of both of the moving sleeves are fixedly connected with a connecting frame, both of the connecting frames are fixedly connected with a corresponding limiting frame, and a plurality of limiting rollers are rotationally connected between the upper and lower inner walls of both of the limiting frames.

[0007] Through the above technical scheme, when in use, the width specification of the raw paperboard can be prioritized, the two moving lead screws are controlled to rotate, the corresponding connecting frame with the limiting frame moves away or towards each other through the moving sleeve, and then the limiting rollers on the two limiting frames can be in contact with the front and rear ends of the raw paperboard, so that the raw paperboard can be stably positioned and moved when being fed by the conveying belt, and the stability of the paperboard during conveying and cutting can be maintained. The raw paperboard of various specifications can be effectively positioned, which not only improves the adaptability of the equipment to paperboards of different specifications, avoids the deviation of the paperboard during transportation, effectively reduces the cutting error, and improves the production efficiency.

[0008] Further, the quick disassembly assembly comprises a connecting plate fixedly connected to the cutting knife, the lower end of the mounting seat is provided with a connecting groove, the front and rear ends of the connecting plate are provided with reset grooves, the interiors of the two reset grooves are movably provided with locking blocks, a plurality of reset springs are fixedly connected between the opposite end inner walls of the two locking blocks and the corresponding reset grooves, and the front and rear ends of the mounting seat are provided with locking grooves.

[0009] Through the above technical scheme, the quick disassembly assembly is provided, and then the connecting plate can be removed from the mounting seat by pressing the two locking blocks to make them disengage from the corresponding locking grooves, so that the connecting plate can be quickly disassembled from the mounting seat, which is convenient for the replacement and maintenance of the cutting knife. When replacing or reinstalling, the connecting plate is only needed to be smoothly clamped into the connecting groove, and then the locking blocks are popped out and clamped into the locking grooves through the reset springs, so that the installation and fixation can be completed, which is simple and fast, greatly improves the operation efficiency of the production line and the maintenance convenience of the equipment.

[0010] Further, two opposite ends of the first fixed frame are rotatably connected with transmission rollers on both sides of the upper part, and a conveying belt is arranged between the outer walls of the two transmission rollers. One of the first fixed frame is fixedly connected with a transmission box, and a second motor is fixedly arranged on the transmission box. Second transmission shafts are rotatably connected between the front and rear inner walls of the transmission box, and second transmission wheels are fixedly sleeved on the outer walls of the two second transmission shafts. A second transmission belt is arranged between the outer walls of the two second transmission wheels. The output end of the second motor penetrates the transmission box and is fixedly connected with the corresponding second transmission shaft. One end of the two second transmission shafts penetrates the corresponding first fixed frame and is fixedly connected with the corresponding transmission roller. A plurality of supporting rollers are rotatably connected to the upper part of the opposite ends of the two first fixed frames. A laser displacement sensor is fixedly arranged on the rear upper end of the second fixed frame. A controller is fixedly arranged on the rear end inner wall of the mounting frame. The laser displacement sensor, the controller, the second motor and the two cylinders are electrically connected.

[0011] Through the above technical scheme, the corresponding second transmission shaft is rotated by starting the second motor. The other second transmission shaft can be rotated through the second transmission wheel and the second transmission belt. The two transmission rollers can be rotated, thereby driving the conveying belt to move forward, completing the conveying process of the material. At this time, when the conveyed paperboard passes through the laser displacement sensor for the first time, the sensor records the initial position of the paperboard, then tracks the displacement of the paperboard, and detects the preset distance. After that, the second motor can be controlled to be turned off through the controller, and the cylinder is started, thereby controlling the cutting operation of the cutting knife. After the cutting knife is reset, the next round of automatic feeding is started.

[0012] Further, the interiors of the two supporting frames are provided with transmission grooves. First transmission shafts are rotatably connected between the upper and lower parts of the front and rear inner walls of the two transmission grooves. First transmission wheels are fixedly sleeved on the outer walls of the plurality of first transmission shafts. First transmission belts are arranged between the outer walls of the two first transmission wheels located at the same supporting frame. One end of the two moving lead screws penetrates the corresponding supporting frame and is fixedly connected with the corresponding first transmission shaft. A rotating shaft is rotatably connected between the opposite ends of the two first fixed frames. A first motor is fixedly arranged on one of the supporting frames.

[0013] Through the above technical scheme, the corresponding first transmission shaft is rotated by controlling the corresponding first transmission shaft. The other corresponding first transmission shaft can be rotated through the first transmission belt and the first transmission wheel, thereby rotating the two moving lead screws.

[0014] Further, the connecting plate is clamped in the connecting groove, and the two locking blocks are clamped in the corresponding locking grooves.

[0015] Through the technical scheme, the connecting plate is clamped in the connecting groove, and the two locking blocks are clamped in the corresponding locking grooves, so that the connecting plate is limited and fixed in the connecting groove.

[0016] Further, the front and rear ends of the rotating shaft penetrate the corresponding first fixed frame and support frame and are fixedly connected with the corresponding first transmission shaft, and the output end of the first motor penetrates the corresponding support frame and is fixedly connected with the corresponding first transmission shaft.

[0017] Through the technical scheme, the output end of the first motor is fixedly connected with the corresponding first transmission shaft, and the front and rear ends of the rotating shaft are fixedly connected with the corresponding first transmission shaft, so that when the first motor is started, the corresponding two first transmission shafts can be rotated through the rotating shaft.

[0018] Further, a plurality of positioning telescopic rods are fixedly connected between the opposite ends of the two support frames and the corresponding connecting frame.

[0019] Through the technical scheme, the positioning telescopic rod is provided, so that the movement of the connecting frame is more stable.

[0020] Further, the upper and lower ends of the conveying belt are fixedly connected with feeding blocks.

[0021] Through the technical scheme, the feeding block is provided, so that when the raw paperboard is placed, the raw paperboard can be aligned and placed on one side of the feeding block, so that the conveying belt can assist the movement of the raw paperboard through the feeding block when feeding.

[0022] The utility model has the following beneficial effects:

[0023] 1. The automatic feeding and cutting mechanism of the paper box corner pasting machine has the adjustable limiting assembly, so that various specifications of raw paperboard can be effectively limited, the stability of the paperboard during conveying and cutting is maintained, the adaptability of the equipment to different specifications of paperboard is improved, deviation of the paperboard during transportation is avoided, cutting error is effectively reduced, and production efficiency is improved.

[0024] 2. The automatic feeding and cutting mechanism of the paper box corner pasting machine has the quick disassembly assembly, so that the two locking blocks can be pressed to be separated from the corresponding locking groove, the fixing and limitation of the connecting plate in the mounting seat is released, the cutting knife can be quickly disassembled from the mounting seat, the cutter can be replaced and maintained, when replacement or reinstallation is needed, the connecting plate is clamped into the connecting groove, the locking block is popped out and clamped into the locking groove through the reset spring, installation and fixation are completed, the operation is simple and fast, the running efficiency of the production line and the maintenance convenience of the equipment are greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 The utility model provides a kind of shaft measurement schematic view of automatic feeding cutting mechanism of paper box corner pasting machine proposed by the utility model;

[0026] Figure 2 The utility model provides a kind of side section schematic view of automatic feeding cutting mechanism of paper box corner pasting machine proposed by the utility model;

[0027] Figure 3 For Figure 2 The structure enlarged schematic view in A of middle;

[0028] Figure 4 For Figure 2 The structure enlarged schematic view in B of middle;

[0029] Figure 5 The utility model provides a kind of front section schematic view of automatic feeding cutting mechanism of paper box corner pasting machine proposed by the utility model;

[0030] Figure 6 The utility model provides a kind of local down section schematic view of automatic feeding cutting mechanism of paper box corner pasting machine proposed by the utility model.

[0031] Legend:

[0032] 1, first fixed frame;2, support frame;3, second fixed frame;4, cutting knife;5, adjustable limiting component;6, limiting frame;7, limiting cylinder;8, moving screw;9, moving sleeve;10, connecting frame;11, positioning telescopic rod;12, transmission groove;13, first transmission shaft;14, first transmission wheel;15, first transmission belt;16, rotating shaft;17, first motor;18, mounting frame;19, air cylinder;20, mounting seat;21, quick split component;22, connecting plate;23, connecting groove;24, reset groove;25, locking block;26, reset spring;27, locking groove;28, transmission roller;29, conveying belt;30, support roller;31, transmission box;32, second transmission shaft;33, second transmission wheel;34, second transmission belt;35, second motor;36, laser displacement sensor;37, controller;38, feeding block. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0034] Refer toFigure 1 、 Figure 2 and Figures 4-6 The utility model provides a kind of automatic feeding cutting mechanism of carton corner pasting machine, including two first fixed frame 1, second fixed frame 3 and cutting knife 4, the opposite end of two first fixed frame 1 is fixedly connected with support frame 2, adjustable limiting component 5 is provided between two support frame 2 and corresponding first fixed frame 1, the upper end of second fixed frame 3 is fixedly connected with mounting bracket 18, the upper end of mounting bracket 18 is fixedly provided with cylinder 19 at front and back, the telescopic end of two cylinder 19 is all penetrated mounting bracket 18 and is fixedly connected with mounting seat 20, quick split component 21 is provided between mounting seat 20 and cutting knife 4, the opposite end of two first fixed frame 1 is rotatably connected with transmission roller 28 at both sides upper end, conveying belt 29 is provided between the outer wall of two transmission roller 28, one of first fixed frame 1 is fixedly connected with transmission box 31, second motor 35 is fixedly provided on transmission box 31, second transmission shaft 32 is rotatably connected at both sides between the front and back inner wall of transmission box 31, second transmission pulley 33 is fixedly sleeved on the outer wall of two second transmission shaft 32, second transmission belt 34 is provided between the outer wall of two second transmission pulley 33, the output of second motor 35 is penetrated transmission box 31 and is fixedly connected with corresponding second transmission shaft 32, the one end of two second transmission shaft 32 is all penetrated corresponding first fixed frame 1 and is fixedly connected with corresponding transmission roller 28, a plurality of support rollers 30 are rotatably connected at upper end between the opposite end of two first fixed frame 1, laser displacement sensor 36 is fixedly provided at the rear of the upper end of second fixed frame 3, controller 37 is fixedly provided on the rear end inner wall of mounting bracket 18, laser displacement sensor 36, controller 37, second motor 35 and two cylinder 19 are electrically connected, by starting second motor 35, corresponding second transmission shaft 32 is rotated, another second transmission shaft 32 can be made to rotate by being provided with second transmission pulley 33 and second transmission belt 34, in turn can make two transmission roller 28 rotate, to drive conveying belt 29 to move forward, complete the conveying process of material, when the paperboard conveyed first time through laser displacement sensor 36, sensor will record the initial position of paperboard, then track the displacement of paperboard, after detecting preset distance, second motor 35 can be controlled to be closed by being provided with controller 37, and cylinder 19 is started, in turn to control cutting knife 4 to cut down and complete cutting operation, then when cutting knife 4 resets, the next round automatic feeding is started, the upper and lower ends of conveying belt 29 are fixedly connected with feeding block 38, by being provided with feeding block 38, in turn when placing original paperboard, original paperboard can be placed in alignment on the side of feeding block 38, so that conveying belt 29 can assist to push original paperboard to move by being provided with feeding block 38 when feeding;

[0035] The adjustable limiting assembly 5 comprises a limiting frame 6 and two movable lead screws 8, the thread directions of the two movable lead screws 8 are opposite, the two movable lead screws 8 are both rotationally connected on the corresponding support frame 2, the outer walls of the two movable lead screws 8 are both threadedly sleeved with movable sleeves 9, the opposite ends of the two movable sleeves 9 are both fixedly connected with connecting frames 10, the opposite ends between the two support frames 2 and the corresponding connecting frames 10 are both fixedly connected with a plurality of positioning telescopic rods 11, through the positioning telescopic rods 11, the movement process of the connecting frame 10 is more stable, the two connecting frames 10 are both fixedly connected with the corresponding limiting frame 6, a plurality of limiting rollers 7 are rotationally connected between the upper and lower inner walls of the two limiting frames 6, in use, according to the width specification of the raw paperboard, the two movable lead screws 8 are controlled to rotate, the corresponding connecting frames 10 are moved away or towards each other through the movable sleeves 9, and then the limiting rollers 7 on the two limiting frames 6 can be in contact with the front and rear ends of the raw paperboard, so that the raw paperboard can be stably positioned and moved when being fed along with the conveying belt 29, and the stability of the paperboard during conveying and cutting is maintained, a plurality of specifications of raw paperboard can be effectively positioned, the adaptability of the equipment to different specifications of paperboard is improved, the deviation of the paperboard during transportation is avoided, the cutting error is effectively reduced, and the production efficiency is improved, the interiors of the two support frames 2 are both provided with transmission grooves 12, the first transmission shafts 13 are rotationally connected between the upper and lower positions between the front and rear inner walls of the two transmission grooves 12, the outer walls of the plurality of first transmission shafts 13 are all fixedly sleeved with first transmission wheels 14, the outer walls between the two first transmission wheels 14 at the same support frame 2 are both provided with first transmission belts 15, one end of the two movable lead screws 8 penetrates through the corresponding support frame 2 and is fixedly connected with the corresponding first transmission shaft 13, the middle part between the opposite ends of the two first fixed frames 1 is rotationally connected with a rotating shaft 16, the first motor 17 is fixedly arranged on one of the support frames 2, the other corresponding first transmission shaft 13 is rotated through the first transmission belt 15 and the first transmission wheel 14, and then the two movable lead screws 8 are rotated, the front and rear ends of the rotating shaft 16 penetrate through the corresponding first fixed frame 1 and the support frame 2 and are fixedly connected with the corresponding first transmission shaft 13, the output end of the first motor 17 penetrates through the corresponding support frame 2 and is fixedly connected with the corresponding first transmission shaft 13, the output end of the first motor 17 is fixedly connected with the corresponding first transmission shaft 13, and the front and rear ends of the rotating shaft 16 are fixedly connected with the corresponding first transmission shaft 13, and then when the first motor 17 is started, the corresponding two first transmission shafts 13 are rotated through the rotating shaft 16.

[0036] Referring to Figure 2 , Figure 3 and Figure 5The quick disassembly assembly 21 comprises a connecting plate 22 fixedly connected to the cutting knife 4, the lower end of the mounting seat 20 is provided with a connecting groove 23, the front and rear ends of the connecting plate 22 are provided with reset grooves 24, the interiors of the two reset grooves 24 are movably provided with locking blocks 25, a plurality of reset springs 26 are fixedly connected between the two locking blocks 25 and the inner walls of the opposite ends of the corresponding reset grooves 24, the front and rear ends of the mounting seat 20 are provided with locking grooves 27, the connecting plate 22 is clamped in the connecting groove 23, and the two locking blocks 25 are clamped in the corresponding locking grooves 27, the connecting plate 22 is limited and fixed in the connecting groove 23 by clamping the connecting plate 22 in the connecting groove 23 and clamping the two locking blocks 25 in the corresponding locking grooves 27, the quick disassembly assembly 21 is provided, the two locking blocks 25 can be separated from the corresponding locking grooves 27 by pressing, the fixing limitation of the connecting plate 22 in the mounting seat 20 is released, the cutting knife 4 can be quickly disassembled from the mounting seat 20, the cutting tool is convenient to replace and maintain, and when the cutting tool is replaced or reinstalled, the connecting plate 22 only needs to be smoothly clamped into the connecting groove 23, then the locking blocks 25 are popped out and clamped into the locking grooves 27 through the reset springs 26, and the mounting and fixing are completed, the operation is simple and fast, and the running efficiency of the production line and the maintenance convenience of the equipment are greatly improved.

[0037] Working principle: when in use, the first motor 17 can be started according to the width specification of the original paperboard, so that the first transmission shaft 13 rotates, and the first transmission shaft 13 at the other end rotates through the rotating shaft 16, and then the two moving lead screws 8 rotate through the first transmission belt 15 and the first transmission wheel 14, and then the connecting frame 10 with the limiting frame 6 moves away or towards each other through the moving sleeve 9, so that the limiting rollers 7 on the two limiting frames 6 can be in contact with the front and rear ends of the original paperboard, so that the original paperboard can be stably positioned and moved when the conveying belt 29 moves, and the paperboard can be kept stable during conveying and cutting. When the original paperboard is placed, the original paperboard can be aligned and placed on one side of the feeding block 38, so that the conveying belt 29 can assist the movement of the original paperboard through the feeding block 38 during movement. During the feeding process, when the conveyed paperboard passes through the laser displacement sensor 36 for the first time, the sensor records the initial position of the paperboard, and then tracks the displacement of the paperboard. After detecting the preset distance, the second motor 35 can be controlled to be closed through the controller 37, and the air cylinder 19 is started, so that the cutting operation of the cutting knife 4 is completed. Then, when the cutting knife 4 is reset, the next round of automatic feeding is started. The use of the cutting knife 4 can be removed by pressing the two locking blocks 25 to disengage the corresponding locking grooves 27, so that the fixing of the connecting plate 22 in the mounting seat 20 is released, so that the cutting knife 4 can be quickly removed from the mounting seat 20, and the cutting tool can be replaced and maintained. When replacing or reinstalling, the connecting plate 22 is smoothly clamped into the connecting groove 23, and then the locking block 25 is clamped into the locking groove 27 through the reset spring 26, so that the cutting knife 4 can be installed and fixed, greatly improving the operation efficiency of the production line and the maintenance convenience of the equipment.

[0038] Finally, it should be noted that the above description is only a preferred specific embodiment of the present application and does not limit the present application. Although the present application has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can modify the technical solutions described in the foregoing specific embodiments, or make equivalent replacements to some technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An automatic feeding and cutting mechanism of a carton corner pasting machine, comprising two first fixed frames (1), a second fixed frame (3) and a cutting knife (4), characterized in that: Both ends of two first fixed frames (1) are fixedly connected with support frames (2), adjustable limiting assemblies (5) are arranged between two support frames (2) and corresponding first fixed frames (1), the upper end of the second fixed frame (3) is fixedly connected with a mounting frame (18), the upper end of the mounting frame (18) is fixedly provided with air cylinders (19) at the front and rear positions, the telescopic ends of two air cylinders (19) are all penetrated through the mounting frame (18) and fixedly connected with mounting seats (20), quick disassembly assemblies (21) are arranged between the mounting seats (20) and the cutting knife (4); The adjustable limiting assembly (5) comprises limiting frames (6) and two movable lead screws (8), the screw directions of two movable lead screws (8) are opposite, two movable lead screws (8) are all rotationally connected on the corresponding support frame (2), the outer walls of two movable lead screws (8) are all threadedly sleeved with movable sleeves (9), the opposite ends of two movable sleeves (9) are all fixedly connected with connecting frames (10), two connecting frames (10) are all fixedly connected with the corresponding limiting frame (6), a plurality of limiting rollers (7) are all rotationally connected between the upper and lower inner walls of two limiting frames (6).

2. The automatic feeding and cutting mechanism of a carton corner pasting machine according to claim 1, characterized in that: The quick disassembly assembly (21) comprises a connecting plate (22), the connecting plate (22) is fixedly connected on the cutting knife (4), the lower end of the mounting seat (20) is provided with a connecting groove (23), the front and rear ends of the connecting plate (22) are all provided with reset grooves (24), the interiors of two reset grooves (24) are all movably provided with locking blocks (25), a plurality of reset springs (26) are all fixedly connected between the opposite end inner walls of two locking blocks (25) and the corresponding reset grooves (24), the front and rear ends of the mounting seat (20) are all provided with locking grooves (27).

3. The automatic feeding and cutting mechanism of a carton corner pasting machine according to claim 1, characterized in that: Two sides of the upper part between the opposite ends of the two first fixed frames (1) are rotatably connected with transmission rollers (28), the outer walls between the two transmission rollers (28) are provided with a conveying belt (29), one of the first fixed frames (1) is fixedly connected with a transmission box (31), the transmission box (31) is fixedly provided with a second motor (35), the front and rear inner walls of the transmission box (31) are rotatably connected with second transmission shafts (32) on both sides, the outer walls of the two second transmission shafts (32) are fixedly sleeved with second transmission wheels (33), the outer walls between the two second transmission wheels (33) are provided with a second transmission belt (34), the output end of the second motor (35) penetrates through the transmission box (31) and is fixedly connected with the corresponding second transmission shaft (32), one end of the two second transmission shafts (32) penetrates through the corresponding first fixed frame (1) and is fixedly connected with the corresponding transmission roller (28), a plurality of supporting rollers (30) are rotatably connected between the upper part of the opposite ends of the two first fixed frames (1), the upper rear part of the second fixed frame (3) is fixedly provided with a laser displacement sensor (36), the rear end inner wall of the mounting frame (18) is fixedly provided with a controller (37), and the laser displacement sensor (36), the controller (37), the second motor (35) and the two cylinders (19) are electrically connected.

4. The automatic feeding and cutting mechanism of a carton corner pasting machine according to claim 1, characterized in that: The interiors of the two support frames (2) are provided with transmission grooves (12), the upper and lower parts between the front and rear inner walls of the two transmission grooves (12) are rotatably connected with first transmission shafts (13), the outer walls of the plurality of first transmission shafts (13) are fixedly sleeved with first transmission wheels (14), the outer walls between the two first transmission wheels (14) at the same support frame (2) are provided with a first transmission belt (15), one end of the two moving lead screws (8) penetrates through the corresponding support frame (2) and is fixedly connected with the corresponding first transmission shaft (13), the opposite ends of the two first fixed frames (1) are rotatably connected with a rotating shaft (16), and one of the support frames (2) is fixedly provided with a first motor (17).

5. The automatic feeding and cutting mechanism of a carton corner pasting machine according to claim 2, characterized in that: The connecting plate (22) is clamped in the connecting groove (23), and the two locking blocks (25) are clamped in the corresponding locking grooves (27).

6. The automatic feeding and cutting mechanism of a carton corner pasting machine according to claim 4, characterized in that: The front and rear ends of the rotating shaft (16) penetrate through the corresponding first fixed frame (1) and support frame (2) and are fixedly connected with the corresponding first transmission shaft (13), and the output end of the first motor (17) penetrates through the corresponding support frame (2) and is fixedly connected with the corresponding first transmission shaft (13).

7. The automatic feeding and cutting mechanism of a carton corner pasting machine according to claim 1, characterized in that: The opposite ends of the two support frames (2) and the corresponding connecting frames (10) are fixedly connected with a plurality of positioning telescopic rods (11).

8. The automatic feeding and cutting mechanism of a carton corner pasting machine according to claim 3, characterized in that: The upper and lower ends of the conveying belt (29) are fixedly connected with feeding blocks (38).

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