CN221736315U - A heavy-duty high-speed cutting device and center positioning mechanism - Google Patents

Abstract

The utility model discloses heavy high-speed cutting equipment and a center positioning mechanism, which relate to the technical field of cutting machines, wherein the center positioning mechanism comprises a lifting mechanism and a gathering mechanism, the gathering mechanism comprises an upper electric push rod, a lower electric push rod, a left guide rail, a right guide rail, a supporting seat and a second supporting rod, which are arranged on a rack, and the supporting seat is provided with the left electric push rod, the right electric push rod, the guide rail and the supporting rod; the lower slide plate is provided with a pair of first gathering rods, a first sliding block and a first hinged plate in a hinged manner, and when the left electric push rod pushes the lower slide plate, the first sliding block slides back and forth on the guide rail; the upper sliding plate is provided with a second gathering rod, a second sliding block and a second hinged plate in a hinged manner, and when the right electric push rod pushes the upper sliding plate, the second sliding block slides back and forth on the guide rail; the first hinge plate is hinged with the middle plate, the middle plate is hinged with the second hinge plate, and the middle plate is hinged on the supporting rod; the lifting mechanism lifts the gathering plate. The utility model automatically aligns the plastic plate by the center positioning mechanism, and has high automation degree and high production efficiency.

Description

A heavy-duty high-speed cutting device and center positioning mechanism

Technical Field

The utility model relates to the technical field of cutting machines, in particular to a heavy-duty high-speed cutting device and a center positioning mechanism.

Background Art

The plastic sheet described in the present application is specifically a hollow sheet or a honeycomb sheet, which has the advantages of shockproof and flexible structural design. At the same time, the sheet can be flexibly added with anti-static and conductive masterbatch through the control of raw materials to produce a plastic hollow sheet or honeycomb sheet with conductive and anti-static functions. After the hollow sheet or honeycomb sheet is cut, it can be made into a plastic box for use in various industries such as auto parts, machinery, light industry, and home appliances. It is a new type of environmentally friendly packaging material that replaces paperboard boxes.

At present, the cutting process of plastic sheets requires multiple workers to manually align the plastic sheets and put them into the cutting machine, and then the cutting die set of the cutting machine will punch and hold the plastic sheets. However, workers rely on concentration and feeling to manually align the plastic sheets. If they are not attentive, the plastic sheets will be sent to the cutting die set for punching and holding when they are not aligned, which will result in the punched plastic sheets being unqualified or even scrapped.

Utility Model Content

The technical problem to be solved by the utility model is to provide a heavy-duty high-speed cutting device and a center positioning mechanism to overcome the defect in the prior art that multiple workers are required to manually align the plastic sheets and then put them into the cutting machine before cutting the plastic sheets.

In order to solve the above technical problems, the center positioning mechanism of the utility model includes a lifting mechanism and a gathering mechanism, and the gathering mechanism includes an upper electric push rod, a lower electric push rod, a pair of left guide rails, a pair of right guide rails, a support seat, and a second support rod arranged on the frame, and the support seat is provided with a left electric push rod, a right electric push rod, a pair of guide rails, and a support rod; a pair of first gathering rods, a pair of first sliders, and a first hinged plate are arranged on the lower slide plate, and when the left electric push rod pushes the lower slide plate, the first slider slides back and forth on the guide rail; a pair of second gathering rods, a pair of second sliders, and a second hinged plate are arranged on the upper slide plate, and when the right electric push rod pushes the upper slide plate, the second slider slides back and forth on the guide rail; the first hinged plate is hinged to the center The plate is hinged to the second hinged plate, and the middle plate is hinged to the support rod; a pair of third gathering rods, a pair of third sliding blocks, and a third hinged plate are hinged on the left slide board; when the upper electric push rod pushes the left slide board, the third sliding block slides back and forth on the left guide rail; a pair of fourth gathering rods, a pair of fourth sliding blocks, and a fourth hinged plate are hinged on the right slide board; when the lower electric push rod pushes the right slide board, the fourth sliding block slides back and forth on the right guide rail; the third hinged plate is hinged to the middle plate, and the middle plate is hinged to the fourth hinged plate, and the middle plate is hinged to the second support rod; the lifting mechanism lifts the gathering plate; the first gathering rod, the second gathering rod, the third gathering rod, and the fourth gathering rod move respectively on the gathering path of the gathering plate.

Wherein, the gathering paths include a pair of first gathering paths, a pair of second gathering paths, a pair of third gathering paths, and a pair of fourth gathering paths; the first gathering rod moves in the first gathering path, the second gathering rod moves in the second gathering path, the third gathering rod moves in the third gathering path, and the fourth gathering rod moves in the fourth gathering path.

Among them, the lifting mechanism includes a main spiral bevel gear commutator with a motor drive, and the main spiral bevel gear commutator respectively drives the left spiral bevel gear commutator and the right spiral bevel gear commutator, and the left spiral bevel gear commutator respectively drives the first worm gear screw lift and the second worm gear screw lift, and the right spiral bevel gear commutator respectively drives the third worm gear screw lift and the fourth worm gear screw lift, and the first worm gear screw lift, the second worm gear screw lift, the third worm gear screw lift, and the fourth worm gear screw lift push the gathering plate to lift and lower.

Among them, the main spiral bevel gear commutator is connected to the left spiral bevel gear commutator and the right spiral bevel gear commutator through the first coupling and the first linkage shaft respectively, the left spiral bevel gear commutator is connected to the first worm gear screw lift and the second worm gear screw lift respectively through the second coupling and the second linkage shaft, and the right spiral bevel gear commutator is connected to the third worm gear screw lift and the fourth worm gear screw lift respectively through the third coupling and the third linkage shaft.

Wherein, a guide sleeve is provided on the frame, a guide column is provided on the gathering plate, and the guide column moves in the guide sleeve.

The heavy-duty high-speed cutting equipment of the utility model comprises a frame, a loading and unloading suction plate mechanism with a suction cup, a six-axis suction plate manipulator with a suction cup, and a knife die set; the frame is also provided with a center positioning mechanism and a punching mechanism; the six-axis suction plate manipulator adsorbs the plastic sheet located in the material chopping area and sends it to the center positioning mechanism, and the center positioning mechanism performs center positioning on the plastic sheet; the plastic sheet after center positioning is adsorbed by the loading and unloading suction plate mechanism and sent to the punching mechanism, and the punching mechanism punches the plastic sheet, and the plastic sheet after punching is adsorbed by the loading and unloading suction plate mechanism and sent to the placement area; the center positioning mechanism comprises a lifting mechanism and a gathering mechanism, and the gathering mechanism comprises an upper electric push rod, a lower electric push rod, a pair of left guide rails, a pair of right guide rails, a support seat, and a second support rod, and the support seat is provided with a left electric push rod, a right electric push rod, a pair of guide rails, and a support rod; a pair of first gathering rods, a pair of first sliding blocks, a first hinged plate, a left When the electric push rod pushes the lower slide, the first slide slides back and forth on the guide rail; a pair of second gathering rods, a pair of second slides, and a second hinged plate are provided on the upper slide, and when the right electric push rod pushes the upper slide, the second slide slides back and forth on the guide rail; the first hinged plate is hinged to the middle plate, the middle plate is hinged to the second hinged plate, and the middle plate is hinged to the support rod; a pair of third gathering rods, a pair of third slides, and a third hinged plate are provided on the left slide, and when the upper electric push rod pushes the left slide, the third slide slides back and forth on the left guide rail; a pair of fourth gathering rods, a pair of fourth slides, and a fourth hinged plate are provided on the right slide, and when the lower electric push rod pushes the right slide, the fourth slide slides back and forth on the right guide rail; the third hinged plate is hinged to the middle plate, the middle plate is hinged to the fourth hinged plate, and the middle plate is hinged to the second support rod; the lifting mechanism lifts the gathering plate; the first gathering rod, the second gathering rod, the third gathering rod, and the fourth gathering rod move respectively on the gathering path of the gathering plate.

Wherein, the gathering paths include a pair of first gathering paths, a pair of second gathering paths, a pair of third gathering paths, and a pair of fourth gathering paths; the first gathering rod moves in the first gathering path, the second gathering rod moves in the second gathering path, the third gathering rod moves in the third gathering path, and the fourth gathering rod moves in the fourth gathering path.

Among them, the lifting mechanism includes a main spiral bevel gear commutator with a motor drive, and the main spiral bevel gear commutator respectively drives the left spiral bevel gear commutator and the right spiral bevel gear commutator, and the left spiral bevel gear commutator respectively drives the first worm gear screw lift and the second worm gear screw lift, and the right spiral bevel gear commutator respectively drives the third worm gear screw lift and the fourth worm gear screw lift, and the first worm gear screw lift, the second worm gear screw lift, the third worm gear screw lift, and the fourth worm gear screw lift push the gathering plate to lift and lower.

Among them, the main spiral bevel gear commutator is connected to the left spiral bevel gear commutator and the right spiral bevel gear commutator through the first coupling and the first linkage shaft respectively, the left spiral bevel gear commutator is connected to the first worm gear screw lift and the second worm gear screw lift respectively through the second coupling and the second linkage shaft, and the right spiral bevel gear commutator is connected to the third worm gear screw lift and the fourth worm gear screw lift respectively through the third coupling and the third linkage shaft.

Wherein, a guide sleeve is provided on the frame, a guide column is provided on the gathering plate, and the guide column moves in the guide sleeve.

Compared with the prior art, the utility model has the beneficial effect that the first gathering rod, the second gathering rod, the third gathering rod and the fourth gathering rod on the center positioning mechanism will push the plastic plate to the center position when moving toward the center direction; then the lifting mechanism pushes the gathering plate to rise until the upper surface of the first gathering rod, the second gathering rod, the third gathering rod and the fourth gathering rod is flush with the upper surface of the gathering plate to facilitate the next production process. The utility model automatically aligns the plastic plate by the center positioning mechanism, with high automation and high production efficiency.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the three-dimensional structure of a single-station heavy-duty high-speed cutting equipment of the utility model;

FIG2 is a schematic diagram of a first three-dimensional structure of the center positioning mechanism of the utility model;

FIG3 is a second three-dimensional structural schematic diagram of the center positioning mechanism of the utility model;

FIG4 is a schematic diagram of the top view of the center positioning mechanism of the utility model;

FIG5 is a schematic diagram of a first partial structure of the center positioning mechanism of the utility model;

FIG6 is a schematic diagram of a second partial structure of the center positioning mechanism of the utility model;

7 is a schematic diagram of a third partial structure of the center positioning mechanism of the utility model;

FIG8 is a schematic diagram of a fourth partial structure of the center positioning mechanism of the utility model;

9 is a schematic diagram of a fifth partial structure of the center positioning mechanism of the utility model;

10 is a schematic diagram of a first three-dimensional structure of the punching mechanism of the utility model;

11 is a schematic diagram of a second three-dimensional structure of the punching mechanism of the utility model;

12 is a schematic diagram of a first partial structure of the punching mechanism of the utility model;

13 is a schematic diagram of a second partial structure of the punching mechanism of the utility model;

14 is a schematic diagram of a third partial structure of the punching mechanism of the utility model;

15 is a schematic diagram of a fourth partial structure of the punching mechanism of the utility model;

16 is a schematic diagram of a fifth partial structure of the punching mechanism of the utility model;

17 is a schematic diagram of the sixth partial structure of the punching mechanism of the utility model;

18 is a schematic diagram of the three-dimensional structure of the upper and lower material suction plate mechanism of the utility model;

19 is a schematic diagram of a first partial structure of the loading and unloading suction plate mechanism of the utility model;

20 is a schematic diagram of a second partial structure of the upper and lower material suction plate mechanism of the utility model;

21 is a schematic diagram of the three-dimensional structure of the double-station heavy-duty high-speed cutting equipment of the utility model.

DETAILED DESCRIPTION

The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

The heavy-duty high-speed cutting equipment of this embodiment is shown in Figures 1 to 21, and includes a power distribution cabinet 1 for transmitting power, a frame 2, and a loading and unloading plate suction mechanism 100 with a suction cup. A six-axis plate suction manipulator 3 with a suction cup is installed on the frame. The six-axis plate suction manipulator is a prior art and will not be described again. A center positioning mechanism 4 and a punching mechanism 5 are also provided on the frame.

The six-axis plate suction manipulator absorbs the plastic sheet 6 (the plastic sheet in this embodiment is a hollow sheet or a honeycomb sheet) located in the material chopping area (the material chopping area has a material chopping tray) and sends it to the center positioning mechanism, and the center positioning mechanism performs center positioning on the plastic sheet. Specifically, the center positioning mechanism includes a lifting mechanism 7 and a gathering mechanism 8, and the gathering mechanism includes an upper electric push rod 9, a lower electric push rod 10, a pair of left guide rails 11, a pair of right guide rails 12, a support seat 13, and a second support rod 84 arranged on the frame, and the support seat is provided with a left electric push rod 14, a right electric push rod 15, a pair of guide rails 16, and a support rod 17. The lower slide plate 18 is provided with a pair of first gathering rods 19, a pair of first sliders 20, and is hinged with a first hinged plate 21. When the left electric push rod pushes the lower slide plate, the first slider slides back and forth on the guide rail. The upper slide 88 is provided with a pair of second gathering rods 22, a pair of second sliders 23, and a second hinged plate 24. When the right electric push rod pushes the upper slide, the second slider slides back and forth on the guide rail; the first hinged plate is hinged to the middle plate 25, and the middle plate is hinged to the second hinged plate. The middle plate is also hinged to the support rod. When the upper and lower slides are pushed, the first hinged plate, the middle plate, and the second hinged plate are also opened or closed, thereby playing a role in stabilizing the push. The left slide 26 is provided with a pair of third gathering rods 27, a pair of third sliders 28, and a third hinged plate 85. When the upper electric push rod pushes the left slide, the third slider slides back and forth on the left guide rail. The right slide plate 29 is provided with a pair of fourth gathering rods 30, a pair of fourth sliders 31, and a fourth hinged plate 86. When the lower electric push rod pushes the right slide plate, the fourth slider slides back and forth on the right guide rail. The third hinged plate is hinged to the middle plate 87, and the middle plate is hinged to the fourth hinged plate. The middle plate is hinged to the second support rod. When the left slide plate and the right slide plate are pushed, the third hinged plate, the middle plate, and the fourth hinged plate are also opened or closed accordingly, thereby playing a role in stable pushing. The first gathering rod, the second gathering rod, the third gathering rod, and the fourth gathering rod move in the gathering path of the gathering plate 32 respectively. Specifically, the gathering path includes a pair of first gathering paths 33, a pair of second gathering paths 34, a pair of third gathering paths 35, and a pair of fourth gathering paths 36; the first gathering rod moves in the first gathering path, the second gathering rod moves in the second gathering path, the third gathering rod moves in the third gathering path, and the fourth gathering rod moves in the fourth gathering path.

When the plastic sheet is adsorbed to the gathering plate, the upper electric push rod, the lower electric push rod, the left electric push rod, and the right electric push rod are started, so that the upper electric push rod pushes the left slide plate, and the left slide plate drives a pair of third gathering rods to move toward the center on the third gathering path, the lower electric push rod pushes the right slide plate, and the right slide plate drives a pair of fourth gathering rods to move toward the center on the fourth gathering path, the left electric push rod pushes the lower slide plate, and the lower slide plate drives a pair of first gathering rods to move toward the center on the first gathering path, and the right electric push rod pushes the upper slide plate, and the upper slide plate drives a pair of second gathering rods to move toward the center on the second gathering path. The first gathering rod, the second gathering rod, the third gathering rod, and the fourth gathering rod will push the center of the plastic sheet to be positioned when they move toward the center. Afterwards, the lifting mechanism pushes the gathering plate to rise until the upper surface 37 of the first gathering rod, the second gathering rod, the third gathering rod, and the fourth gathering rod are flush with the upper surface 38 of the gathering plate, so that the plastic sheet after center positioning is conveniently adsorbed by the upper and lower material suction plate mechanism and sent to the punching mechanism.

Specifically, the lifting mechanism includes a main spiral bevel gear commutator 39 with motor drive, the main spiral bevel gear commutator drives the left spiral bevel gear commutator 42 and the right spiral bevel gear commutator 43 through the first coupling 40 and the first linkage shaft 41 respectively, the left spiral bevel gear commutator drives the first worm gear screw lift 46 and the second worm gear screw lift 47 through the second coupling 44 and the second linkage shaft 45 respectively, the right spiral bevel gear commutator drives the third worm gear screw lift 50 and the fourth worm gear screw lift 51 through the third coupling 48 and the third linkage shaft 49 respectively, the first worm gear screw lift, the second worm gear screw lift, the third worm gear screw lift and the fourth worm gear screw lift push the gathering plate to rise and fall. In order to ensure the stability of the lifting, a guide sleeve 52 is provided on the frame, and a guide column 53 is provided on the gathering plate. When the gathering plate is raised and lowered, the guide column moves in the guide sleeve. After the plastic sheet is adsorbed on the punching mechanism by the loading and unloading suction plate mechanism, the lifting mechanism pushes the gathering plate down to its original position, and then the first gathering rod, the second gathering rod, the third gathering rod, and the fourth gathering rod move in the opposite direction to their original positions to wait for the next plastic sheet to be delivered.

The punching mechanism punches the plastic sheet. Specifically, the punching mechanism includes a punching mechanism 54 and a sheet feeding mechanism 55 for feeding the plastic sheet into the punching mechanism. The sheet feeding mechanism includes a plurality of cylinders 56 and a gear motor 57 arranged on the frame. The cylinders push the mesh skeleton 59 up and down. The skeleton is provided with a plurality of main guide rails 60. The main guide rails are provided with a plurality of main sliders 61. The main sliders are provided with a placement plate 62. The bottom of the placement plate is provided with a spur plate 63. The gear motor is engaged with the spur plate. The base is provided with a skeleton rod 64, a main guide rail, a main slider and a channel 65 for the movement of the spur plate. That is, the cylinder pushes the skeleton up and down to realize the lifting and lowering of the placement plate, and the gear motor drives the placement plate to move left and right by engaging with the spur plate. When the placement plate moves left and right, the cylinder pushes the placement plate to rise slightly to avoid the possibility of surface friction damage between the placement plate and the base. When the placement plate moves with the plastic sheet to the position of the knife die assembly for punching, the cylinder pushes the placement plate down to the contact position with the base, thereby ensuring that the placement plate has a stable support body when it is subjected to punching pressure.

The stamping mechanism includes a base 66, on which a main motor 67, a pair of first hydraulic cylinders 68, a pair of second hydraulic cylinders 69, a first rotating shaft 70 rotating around the base, and a second rotating shaft 71 rotating around the base are provided. The main motor drives the first hydraulic cylinder and the second hydraulic cylinder to move up and down. The first hydraulic cylinder pushes a pair of first hydraulic columns 73 to move up and down on the base through the first connecting plate 72. The second hydraulic cylinder pushes a pair of second hydraulic columns 75 to move up and down on the base through the second connecting plate 74. The first hydraulic column and the second hydraulic column push the stamping main body block 76 to perform up and down stamping movements. The stamping main body block can be installed with a knife die set of different specifications through a clamp according to the size of the plastic plate. The knife die set is a prior art and will not be described in detail. The first hydraulic column is hinged to the first short plate 78 through the first connecting plate, the first short plate is hinged to the first V-shaped plate 79, the first V-shaped plate is hinged to the parallel plate 80, the second hydraulic column is hinged to the second short plate 81 through the second connecting plate, the second short plate is hinged to the second V-shaped plate 82, the second V-shaped plate is hinged to the parallel plate, the first rotating shaft is connected to the first V-shaped plate, and the second rotating shaft is connected to the second V-shaped plate. When the first hydraulic cylinder and the second hydraulic cylinder push the first hydraulic column and the second hydraulic column to move up and down respectively, they will also drive the first short plate, the first V-shaped plate, the parallel plate, the second V-shaped plate, and the second short plate to move, thereby assisting the punching speed of the stamping main block to be faster and ensuring the processing quality of the plastic sheet.

The loading and unloading suction plate mechanism of this embodiment includes a first gantry support frame 102 and a second gantry support frame 103 respectively arranged on the base, a horizontal guide frame 104 is arranged on the first gantry support frame and the second gantry support frame, the horizontal guide frame is provided with two horizontal guide rails 105 and a horizontal rack 106, four horizontal sliders 107 are arranged on the horizontal guide rail, and a horizontal slide plate 108 is arranged on the horizontal slider, the horizontal slide plate is respectively connected to a horizontal motor 110 with a horizontal gear and four horizontal sliders, the horizontal gear is meshed with the horizontal rack, and the horizontal motor drives the horizontal slide plate to perform horizontal linear motion on the horizontal guide rail. The horizontal slide plate is connected to a connecting frame 111, and the connecting frame is connected to a vertical slide plate 112, and the vertical slide plate is respectively connected to a vertical motor 114 with a vertical gear and four vertical sliders 115, and the four vertical sliders are respectively arranged on two vertical guide rails 116, two vertical guide rails and a vertical rack 117 are arranged on the vertical guide rail frame 101, the vertical gear is meshed with the vertical rack, and the vertical motor drives the vertical guide rail frame to perform vertical linear motion. A rectangular plate rack 118 is connected to the bottom of the vertical guide rail frame, and the rectangular plate rack has a suction cup for adsorbing plastic plates. The horizontal motor drives the rectangular plate rack to move horizontally to above the center positioning mechanism, and then the vertical motor drives the rectangular plate rack to descend. When the suction cup on the rectangular plate rack adsorbs the plastic plate, the vertical motor drives the rectangular plate rack to rise, and then the horizontal motor drives the rectangular plate rack to move above the placement board, and the vertical motor drives the rectangular plate rack to descend, and the adsorbed plastic plate is sent to the placement board.

Finally, the qualified plastic sheets after punching are sucked by the loading and unloading suction mechanism and sent to the placement tray in the placement area through the same principle as above.

This embodiment is a single-station cutting, and similarly, this embodiment can also be set to a double-station staggered cutting. As shown in Figure 21, the same partial mechanism is also set on the other side of this embodiment.

When this embodiment is used, the plastic sheet is sent to the material stacking area by a forklift, and the six-axis plate suction manipulator adsorbs the plastic sheet and sends it to the center positioning mechanism. The plastic sheet after center positioning is adsorbed by the upper and lower material suction plate mechanism and sent to the punching mechanism. The punching mechanism punches and maintains the plastic sheet. The plastic sheet after punching is then adsorbed by the upper and lower material suction plate mechanism and sent to the placement tray in the placement area. After the process is completed, the forklift sends the plastic sheet to other processing processes and folds it into a plastic box. The utility model has a high degree of automation, a high safety factor, and a high production efficiency, which greatly meets the growing production needs of enterprises.

The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims (10)

1. A center positioning mechanism, characterized in that: the central positioning mechanism comprises a lifting mechanism and a gathering mechanism, the gathering mechanism comprises an upper electric push rod, a lower electric push rod, a pair of left guide rails, a pair of right guide rails, a supporting seat and a second supporting rod which are arranged on the frame,

The support seat is provided with a left electric push rod, a right electric push rod, a pair of guide rails and a support rod; the lower slide plate is provided with a pair of first gathering rods, a pair of first sliding blocks and a first hinged plate in a hinged manner, and when the left electric push rod pushes the lower slide plate, the first sliding blocks slide back and forth on the guide rail; the upper sliding plate is provided with a pair of second gathering rods, a pair of second sliding blocks and a second hinged plate in a hinged manner, and when the right electric push rod pushes the upper sliding plate, the second sliding blocks slide back and forth on the guide rails; the first hinge plate is hinged with the middle plate, the middle plate is hinged with the second hinge plate, and the middle plate is hinged on the supporting rod;

The left sliding plate is provided with a pair of third gathering rods, a pair of third sliding blocks and a third hinging plate in a hinging way, and when the upper electric push rod pushes the left sliding plate, the third sliding blocks slide back and forth on the left guide rail; the right slide plate is provided with a pair of fourth gathering rods, a pair of fourth sliding blocks and a fourth hinged plate in a hinged manner, and when the lower electric push rod pushes the right slide plate, the fourth sliding blocks slide back and forth on the right guide rail; the third hinge plate is hinged with a middle plate, the middle plate is hinged with the fourth hinge plate, and the middle plate is hinged on the second support rod;

The lifting mechanism lifts the gathering plate;

The first gathering rod, the second gathering rod, the third gathering rod and the fourth gathering rod respectively move in gathering channels of the gathering plates.

2. The centering mechanism of claim 1, wherein: the gathering passages comprise a pair of first gathering passages, a pair of second gathering passages, a pair of third gathering passages and a pair of fourth gathering passages; the first gathering rod moves in the first gathering channel, the second gathering rod moves in the second gathering channel, the third gathering rod moves in the third gathering channel, and the fourth gathering rod moves in the fourth gathering channel.

3. The centering mechanism of claim 2, wherein: the lifting mechanism comprises a main spiral bevel gear reverser with motor transmission, the main spiral bevel gear reverser respectively transmits a left spiral bevel gear reverser and a right spiral bevel gear reverser, the left spiral bevel gear reverser respectively transmits a first worm gear screw lifter and a second worm gear screw lifter, the right spiral bevel gear reverser respectively transmits a third worm gear screw lifter and a fourth worm gear screw lifter, and the first worm gear screw lifter, the second worm gear screw lifter, the third worm gear screw lifter and the fourth worm gear screw lifter push the gathering plate to lift.

4. A centering mechanism as claimed in claim 3, wherein: the main spiral bevel gear reverser is respectively connected with the left spiral bevel gear reverser and the right spiral bevel gear reverser through a first coupling and a first coupling shaft, the left spiral bevel gear reverser is respectively connected with the first worm gear screw lifter and the second worm gear screw lifter through a second coupling and a second coupling shaft, and the right spiral bevel gear reverser is respectively connected with the third worm gear screw lifter and the fourth worm gear screw lifter through a third coupling and a third coupling shaft.

5. The centering mechanism of claim 1, wherein: the frame is provided with a guide sleeve, the gathering plate is provided with a guide column, and the guide column moves in the guide sleeve.

6. A heavy high-speed cutting device comprises a frame, an upper and lower feeding and sucking plate mechanism with sucking discs, a six-axis sucking plate manipulator with sucking discs and a cutter module; the machine frame is also provided with a center positioning mechanism and a blanking mechanism; the six-axis suction plate manipulator adsorbs the plastic plate positioned in the chopping area on a central positioning mechanism, and the central positioning mechanism centrally positions the plastic plate; the plastic plate after the central positioning is absorbed by the feeding and discharging plate absorbing mechanism and sent to the blanking mechanism, the blanking mechanism blanking the plastic plate, and the plastic plate after blanking is absorbed by the feeding and discharging plate absorbing mechanism and sent to the placing area;

The method is characterized in that: the central positioning mechanism comprises a lifting mechanism and a gathering mechanism, the gathering mechanism comprises an upper electric push rod, a lower electric push rod, a pair of left guide rails, a pair of right guide rails, a supporting seat and a second supporting rod which are arranged on the frame,

The support seat is provided with a left electric push rod, a right electric push rod, a pair of guide rails and a support rod; the lower slide plate is provided with a pair of first gathering rods, a pair of first sliding blocks and a first hinged plate in a hinged manner, and when the left electric push rod pushes the lower slide plate, the first sliding blocks slide back and forth on the guide rail; the upper sliding plate is provided with a pair of second gathering rods, a pair of second sliding blocks and a second hinged plate in a hinged manner, and when the right electric push rod pushes the upper sliding plate, the second sliding blocks slide back and forth on the guide rails; the first hinge plate is hinged with the middle plate, the middle plate is hinged with the second hinge plate, and the middle plate is hinged on the supporting rod;

The left sliding plate is provided with a pair of third gathering rods, a pair of third sliding blocks and a third hinging plate in a hinging way, and when the upper electric push rod pushes the left sliding plate, the third sliding blocks slide back and forth on the left guide rail; the right slide plate is provided with a pair of fourth gathering rods, a pair of fourth sliding blocks and a fourth hinged plate in a hinged manner, and when the lower electric push rod pushes the right slide plate, the fourth sliding blocks slide back and forth on the right guide rail; the third hinge plate is hinged with a middle plate, the middle plate is hinged with the fourth hinge plate, and the middle plate is hinged on the second support rod;

The lifting mechanism lifts the gathering plate;

The first gathering rod, the second gathering rod, the third gathering rod and the fourth gathering rod respectively move in gathering channels of the gathering plates.

7. The heavy duty high speed cutting apparatus according to claim 6, wherein: the gathering passages comprise a pair of first gathering passages, a pair of second gathering passages, a pair of third gathering passages and a pair of fourth gathering passages; the first gathering rod moves in the first gathering channel, the second gathering rod moves in the second gathering channel, the third gathering rod moves in the third gathering channel, and the fourth gathering rod moves in the fourth gathering channel.

8. The heavy duty high speed cutting apparatus according to claim 7, wherein: the lifting mechanism comprises a main spiral bevel gear reverser with motor transmission, the main spiral bevel gear reverser respectively transmits a left spiral bevel gear reverser and a right spiral bevel gear reverser, the left spiral bevel gear reverser respectively transmits a first worm gear screw lifter and a second worm gear screw lifter, the right spiral bevel gear reverser respectively transmits a third worm gear screw lifter and a fourth worm gear screw lifter, and the first worm gear screw lifter, the second worm gear screw lifter, the third worm gear screw lifter and the fourth worm gear screw lifter push the gathering plate to lift.

9. The heavy duty high speed cutting apparatus according to claim 8, wherein: the main spiral bevel gear reverser is respectively connected with the left spiral bevel gear reverser and the right spiral bevel gear reverser through a first coupling and a first coupling shaft, the left spiral bevel gear reverser is respectively connected with the first worm gear screw lifter and the second worm gear screw lifter through a second coupling and a second coupling shaft, and the right spiral bevel gear reverser is respectively connected with the third worm gear screw lifter and the fourth worm gear screw lifter through a third coupling and a third coupling shaft.

10. The heavy duty high speed cutting apparatus according to claim 6, wherein: the frame is provided with a guide sleeve, the gathering plate is provided with a guide column, and the guide column moves in the guide sleeve.