CN117445476A - Full-automatic punching equipment for paperboards - Google Patents

Abstract

The invention discloses full-automatic punching equipment for paperboards, which relates to the field of paperboard production and processing and solves the problem that paper sheets of paperboards are damaged by cutters of the punching equipment.

Description

Full-automatic punching equipment for paperboards

Technical Field

The invention relates to the field of paperboard production and processing, in particular to full-automatic punching equipment for paperboards.

Background

The paper packaging box is processed, namely, the paper board folded into the packaging box is processed, and due to the requirement of packing the articles, some packaging boxes need to be punched, namely, the paper board is punched, and the paper board is automatically punched at present, so that manual punching is not needed;

the prior art publication CN107696148B discloses a paper board punching device, wherein the paper board is conveyed by a first power roller conveying belt, a second power roller conveying belt and a third power roller conveying belt which are sequentially connected, when the paper board passes through the second power roller conveying belt, the paper board is blocked by a blocking mechanism, then the paper board is supported by a supporting device so that the paper board cannot be displaced under the influence of the second power roller conveying belt in the subsequent punching process, after the paper board is supported, two swing arm groups drive cylinders to drive the corresponding swing arm groups to rotate inwards, so that the punching mechanism at the lower end of the swing arm clamps the edge position of the paper board, and the punching mechanism punches the paper board, and the two swing arm groups designed by the invention are matched with four swing arm groups, namely four punching mechanisms can realize the punching operation on four positions of the paper board, so that the problems of efficiency reduction and precision reduction caused by multiple positioning when the single punching device punches the paper board are avoided;

according to the full-automatic punching device for the paper board, the shifting fork swings through the driving motor, the punching cutter is pressed downwards through the outer ring, the knife edge of the punching cutter cuts the paper board, the paper board is punched through the mode of pressing downwards the punching cutter, a small-amplitude recess can be formed in the surface of the paper board, when the punching cutter continuously moves downwards to cut a hole, the lower paper sheet of the paper board is subjected to downward supporting firstly, the lower paper sheet of the paper board is caused to be torn easily, the whole appearance of the paper board is affected, and therefore, the full-automatic punching device for the paper board is provided.

Disclosure of Invention

The invention aims to provide full-automatic punching equipment for paperboards, which is used for accurately punching paperboards and can not cause the damage of paperboards and leathers, so as to solve the problems in the prior art.

In order to achieve the above purpose, the present invention provides the following technical solutions: the full-automatic punching equipment for the paperboards comprises two symmetrically distributed frame boards, wherein supporting feet are fixedly arranged on the outer sides of the two frame boards, paperboards are arranged between the two frame boards, two groups of motors which are symmetrically distributed are fixedly arranged on the upper parts of the frame boards through mounting buckles, the number of each group of motors is a plurality of, an axial displacement device is fixedly arranged between the mounting buckles of the same group, two rows of fans which are oppositely distributed are correspondingly arranged at the bottom of the paperboards, the air supply directions of the fans are that the outer sides of the frame boards are conveyed towards the direction of the symmetry line of the paperboards, the two groups of fans are positioned on the left sides and the right sides of the two frame boards, and when punching operation is performed, air is supplied towards the upper parts of negative pressure mechanisms, and paper sheets cut from the upper parts of the negative pressure mechanisms are blown off; the punching mechanism is used for carrying out punching treatment on the paper board, is arranged at the output end of the motor, and a bearing mechanism is arranged at the bottom of the paper board, corresponding to the lower part of the punching mechanism; the supporting mechanism is triggered by the tilting rod assembly along with the operation of the punching mechanism, and the tilting rod assembly is arranged between the punching mechanism and the supporting mechanism.

Preferably, the punching mechanism comprises a rotating shaft fixedly mounted at the output end of the motor, a sleeve is sleeved on the outer portion of the rotating shaft in a sliding manner, a sliding rod which is in sliding fit with the sleeve is fixedly mounted at the bottom of the rotating shaft, a plurality of cutters which are distributed at equal intervals in circumference are fixedly mounted on the lower end face of the sliding rod, the motor is used for carrying the sliding rod and the cutters to rapidly rotate, and when the motor moves downwards, the paperboard can be cut in a rotating manner, a sliding sheet which is in sliding fit with the sleeve is fixedly sleeved on the outer surface of the sliding rod, a spring I is arranged at the lower end of the sliding sheet, an upper pressing foot is fixedly sleeved on the bottom periphery of the sleeve, two retaining posts which are in sliding fit with the mounting clamp are fixedly mounted at the upper pressing foot, a cutting hole is formed in the inner diameter of the upper pressing foot, and the outer diameter of the cutting hole is consistent with the outer diameter of a plurality of tangent circle of the cutters.

Preferably, the through hole is set up in the slide bar with the inside of pivot, a plurality of with the inlet port that the through hole is linked together is seted up at the top of pivot, the inner wall fixed mounting of slide bar has a plurality of to be circumference equidistance and distributes the blade, and the slide bar is when rotating fast, and the blade makes the inside pressure difference of slide bar be less than external pressure difference at the rotatory in-process of following the slide bar fast, and when cutting the cardboard promptly, external air accessible inlet port enters into the inside of slide bar to blow downwards to the scraps of paper after cutting.

Preferably, the supporting mechanism comprises a lower presser foot attached to the bottom of the paperboard, the lower presser foot is fixedly connected with the frame plate, the lower presser foot is consistent with the structure of the upper presser foot in size, the paperboard can be stably punched through the limitation of the upper presser foot and the lower presser foot, the height of the cutter is larger than the thickness of the paperboard, and the bottom of the lower presser foot is provided with a negative pressure mechanism.

Preferably, the negative pressure mechanism comprises a sleeve frame fixedly mounted at the bottom of the lower presser foot, a chuck is slidably embedded in the sleeve frame, a hollow rod is fixedly mounted in the chuck, a sucking disc is arranged on the top of the hollow rod in a communicating mode, a sliding disc is sleeved on the outer surface of the hollow rod in a sliding mode, a spring II is fixedly mounted between the sliding disc and the chuck, and when the sliding disc slides upwards, the hollow rod can integrally move upwards through the spring II, and a limiting assembly is arranged at the bottom of the hollow rod.

Preferably, the stick up the pole subassembly including fixed mounting in the depression bar of installation buckle lower extreme, just the fixed gag lever post that is equipped with in bottom of presser foot down, the outside of gag lever post is equipped with through the link rotation and sticks up the pole, stick up the pole and be two pole forms, stick up the pole and be close to the one end of depression bar with the lower terminal surface activity laminating of depression bar, stick up the pole keep away from one side of depression bar slide cup joint in the outside of hollow pole, just the bottom of slide with the surface slip laminating of stick up the pole, when the depression bar moves down, the other end of its stick up the pole can upwards stir the slide when pushing down the pole.

Preferably, the spacing subassembly including fixed mounting in the dead lever in the cover frame outside, spacing chamber has been seted up to the inside of hollow pole, just the lower extreme in spacing chamber is the toper, the inside in spacing chamber is equipped with spacing ball through the spring is three fixed, just spacing ball with the lower extreme toper mouth gomphosis in spacing chamber, the bottom of hollow pole is equipped with the die-pin through the fretwork frame slip, just the upper end fixed mounting of die-pin has the scattered tooth die-pin of arc, and the design of fretwork frame is in order to make spacing chamber and external intercommunication, the external diameter of spacing ball with the internal diameter of the scattered tooth die-pin of arc is unanimous, the bottom of die-pin pass through the fixed plate with the dead lever is fixed connection.

Preferably, the inner diameter of the sleeve frame is smaller than that of the cutting hole, when the sucker is guaranteed to move upwards to be attached to the lower end face of the paperboard, the deformation state of the sucker is not larger than that of the cutting hole, the horizontal tangential plane of the upper end of the sucker is lower than that of the upper end face of the sleeve frame, and when the sucker is reset, the sucker is separated from the paper sheet of the cutting opening through the height difference between the sucker and the top face of the sleeve frame.

Preferably, the rotation point of the limiting rod and the tilting rod is close to one side of the pressing rod, so that when the pressing rod moves downwards in a small range, the other end of the tilting rod can slide the sliding disc upwards in a large range.

Preferably, the limit ball is made of rubber material, and a counterweight base is fixedly sleeved at the bottom of the hollow rod, and the counterweight base is designed to ensure that the hollow rod can stretch the spring three through the supporting rod when the whole hollow rod is in a non-punching state.

Compared with the prior art, the invention has the beneficial effects that:

according to the invention, the cutter is designed at the bottom of the slide bar, so that the cutter can move downwards in the high-speed rotation process, the paper board can be directly cut and punched after the bottom of the cutter is contacted with the upper surface of the paper board, and when the cutter moves downwards continuously, the paper board can be ensured not to pull the lower paper leathers of the paper board when punching, so that the paper leathers are damaged to influence the overall appearance of the paper board, and in the high-speed rotation process of the slide bar, the external air can quickly enter the inside of the slide bar through the air inlet and be blown out through the bottom of the slide bar, so that the paper scraps generated by cutting and punching can be blown downwards.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a schematic view of another view angle structure of the whole present invention;

FIG. 3 is a schematic view of the structure of the lower presser foot and the frame of the present invention;

FIG. 4 is a schematic view of the internal structure of the sleeve and the frame of the present invention;

FIG. 5 is a schematic view of a vane structure according to the present invention;

FIG. 6 is a schematic view of a slider and a warpage bar according to the present invention;

FIG. 7 is a schematic view of the internal structure of the hollow bar of the present invention;

fig. 8 is a schematic view of the internal structure of the limiting cavity of the present invention.

In the figure: 1. a frame plate; 2. supporting feet; 3. a paperboard; 4. a motor; 5. installing a buckle; 6. a punching mechanism; 7. a bearing mechanism; 8. a negative pressure mechanism; 9. a stick-up lever assembly; 10. a limit component; 11. a rotating shaft; 12. a sleeve; 13. a sliding sheet; 14. a first spring; 15. a slide bar; 16. a cutter; 17. a retaining post; 18. an upper presser foot; 19. a lower presser foot; 20. a sleeve frame; 21. a hollow rod; 22. a chuck; 23. a suction cup; 24. a slide plate; 25. a second spring; 26. a tilting rod; 27. a compression bar; 28. a limit rod; 29. a fixed rod; 30. a through hole; 31. an air inlet hole; 32. a blade; 33. a counterweight base; 34. a spacing cavity; 35. a third spring; 36. a limit ball; 37. and a supporting rod.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Example 1

Referring to fig. 1 and 2, a full-automatic punching device for paperboards in the drawing includes two symmetrically distributed frame plates 1, supporting feet 2 are fixedly installed on the outer sides of the two frame plates 1, paperboards 3 are arranged between the two frame plates 1, two groups of symmetrically distributed motors 4 are fixedly installed on the upper portion of the frame plate 1 through mounting buckles 5, an axial displacement device is fixedly installed between the plurality of mounting buckles 5 of each group, two rows of oppositely distributed fans are correspondingly installed on the bottom of the paperboard 3, the air supply direction of the fans is that the outer sides of the frame plates 1 are conveyed towards the direction of symmetry lines of the paperboards 3, the two groups of fans are located on the left side and the right side of the two frame plates 1, and during punching operation, air is supplied towards the upper portion of a negative pressure mechanism 8 to blow off paper sheets cut off from the upper portion of the negative pressure mechanism 8; the punching mechanism 6 is arranged at the output end of the motor 4, and a supporting mechanism 7 is arranged at the bottom of the paper board 3 corresponding to the lower part of the punching mechanism 6; the supporting mechanism 7 is touched along with the operation of the punching mechanism 6, and the tilting rod assembly 9 is arranged between the punching mechanism 6 and the supporting mechanism 7.

Referring to fig. 3 and 4, in the drawings, the punching mechanism 6 includes a rotating shaft 11 fixedly installed at an output end of the motor 4, a sleeve 12 is sleeved on an outer portion of the rotating shaft 11 in a sliding manner, a sliding rod 15 which is in sliding engagement with the sleeve 12 is fixedly installed at a bottom of the rotating shaft 11, a plurality of cutters 16 which are circumferentially and equidistantly distributed are fixedly installed on a lower end surface of the sliding rod 15, the motor 4 carries the sliding rod 15 and the cutters 16 to rapidly rotate and move downwards, when the paper board 3 is cut, a sliding sheet 13 which is in sliding engagement with the sleeve 12 is fixedly sleeved on an outer surface of the sliding rod 15, a first spring 14 is arranged at a lower end of the sliding sheet 13, an upper presser foot 18 is fixedly sleeved on a periphery of a bottom of the sleeve 12, two retaining posts 17 which are in sliding engagement with the mounting buckles 5 are fixedly installed at an upper end of the upper presser foot 18, and a cutting hole is formed in an inner diameter of the cutting hole is consistent with an outer tangent circle outer diameter of the plurality of cutters 16.

Referring to fig. 5, through holes 30 are formed in the sliding rod 15 and the rotating shaft 11 in the illustration, a plurality of air inlets 31 are formed in the top of the rotating shaft 11 and are communicated with the through holes 30, a plurality of blades 32 distributed at equal intervals in circumference are fixedly mounted on the inner wall of the sliding rod 15, when the sliding rod 15 rotates rapidly, the blades 32 enable the pressure difference in the sliding rod 15 to be smaller than the external pressure difference in the rapid rotation process of the sliding rod 15, namely, when the paper board 3 is cut, external air can enter the sliding rod 15 through the air inlets 31 and blow down the cut paper sheets.

To accurate punching of cardboard, can not cause the damaged theory of operation of cardboard leatheroid: when the existing conveying device is used for conveying the paper board 3, when the paper board 3 is required to be punched, the mounting buckle 5 is enabled to move downwards through the axial displacement component, the bottom of the upper presser foot 18 is attached to the paper board 3 in the moving process, when the motor 4 continuously moves downwards, the spring I14 is compressed, the elastic force generated by the spring I14 can enable the upper presser foot 18 to pressurize the upper surface of the paper board 3, punching stability is guaranteed, when the bottom of the cutter 16 is in contact with the upper end face of the paper board 3, the paper board 3 can be directly scratched, the shape is in a hole shape, when the slide bar 15 rotates at a high speed, the external air pressure can be larger than the internal air pressure of the slide bar 15 through the action of the blades 32, the external air is compressed into the interior of the slide bar 15 and discharged from the lower port of the slide bar 15, downward wind force is generated in the interior of the slide bar 15, and cut paper sheets are separated from the paper board 3.

Example 2

Referring to fig. 5 and 6, in this embodiment, for further explanation of example 1, the supporting mechanism 7 includes a lower presser foot 19 attached to the bottom of the cardboard 3, and the lower presser foot 19 is fixedly connected with the frame board 1, the lower presser foot 19 is consistent with the upper presser foot 18 in size, the cardboard 3 can be punched stably by limiting the upper presser foot 18 and the lower presser foot 19 on the cardboard 3, the height of the cutter 16 is greater than the thickness of the cardboard 3, and the bottom of the lower presser foot 19 is provided with the negative pressure mechanism 8.

Referring to fig. 6 and 7, the negative pressure mechanism 8 includes a sleeve frame 20 fixedly mounted at the bottom of the lower presser foot 19, a chuck 22 is slidably embedded in the sleeve frame 20, a hollow rod 21 is fixedly mounted in the chuck 22, a sucking disc 23 is arranged at the top of the hollow rod 21 in a communicating manner, a sliding disc 24 is slidably sleeved on the outer surface of the hollow rod 21, a second spring 25 is fixedly mounted between the sliding disc 24 and the chuck 22, and when the sliding disc 24 slides upwards, the hollow rod 21 can integrally move upwards through the second spring 25, and a limiting assembly 10 is arranged at the bottom of the hollow rod 21.

The stick up lever assembly 9 includes fixed mounting in the depression bar 27 of installation buckle 5 lower extreme, and the fixed gag lever post 28 that is equipped with in bottom of presser foot 19 down, the outside of gag lever post 28 is equipped with through the link rotation and sticks up pole 26, stick up pole 26 is double pole form, stick up the one end that pole 26 is close to depression bar 27 and the activity laminating of the lower terminal surface of depression bar 27, stick up pole 26 is kept away from the outside of depression bar 27 sliding sleeve joint in hollow bar 21, and the bottom of slide 24 and the surface sliding laminating of stick up pole 26, when depression bar 27 moves down, when pushing down to stick up pole 26, its other end of stick up pole 26 can dial slide 24 upwards.

Referring to fig. 7, the rotation points of the limiting rod 28 and the tilting rod 26 are close to one side of the pressing rod 27, so that the other end of the tilting rod 26 can slide the slide plate 24 upwards to a large extent when the pressing rod 27 moves downwards to a small extent.

In this embodiment: when the mounting buckle 5 moves downwards with the motor 4, the tilting rod 26 can be extruded through the compression rod 27, so that the other end of the tilting rod 26 moves upwards the sliding disc 24, in the upward moving process, the sliding disc 24 firstly slides upwards through the action of the second spring 25 until the sucker 23 contacts with the lower end face of the paperboard 3, in the continuous upward moving process of the sliding disc 24, the second spring 25 can compress the sucker 23, the second spring 25 can press the sucker 23, the air extrusion part between the sucker 23 and the lower end face of the paperboard 3 is extruded, at the moment, the bottom of a punching point is adsorbed and pressed through the sucker 23, the punching stability of the cutter 16 on the paperboard 3 can be ensured, and the lower paper of the paperboard 3 can be further prevented from being pulled and damaged when the cutter 16 moves downwards continuously;

it is noted that when the motor 4 moves downwards, its suction cup 23 can come into contact with the cardboard 3 earlier than the cutter 16.

Example 3

Referring to fig. 8, for further explanation of this embodiment, the limiting assembly 10 includes a fixing rod 29 fixedly mounted on the outer side of the sleeve frame 20, a limiting cavity 34 is formed in the hollow rod 21, the lower end of the limiting cavity 34 is conical, a limiting ball 36 is fixedly arranged in the limiting cavity 34 through a spring three 35, the limiting ball 36 is embedded with a conical opening at the lower end of the limiting cavity 34, a supporting rod 37 is slidably arranged at the bottom of the hollow rod 21 through a hollowed frame, an arc-shaped loose tooth supporting block is fixedly mounted at the upper end of the supporting rod 37, the hollowed frame is designed to enable the limiting cavity 34 to be communicated with the outside, the outer diameter of the limiting ball 36 is identical with the inner diameter of the arc-shaped loose tooth supporting block, and the bottom of the supporting rod 37 is fixedly connected with the fixing rod 29 through a fixing plate.

Referring to fig. 8, the limiting ball 36 is made of rubber material, and the bottom of the hollow rod 21 is fixedly sleeved with the counterweight base 33, and the counterweight base 33 is designed to ensure that the spring III 35 can be stretched by the supporting rod 37 when the whole hollow rod 21 is in a non-punching state.

Referring to fig. 7 and 8, the inner diameter of the sleeve frame 20 is smaller than the inner diameter of the cutting hole, so that when the suction cup 23 moves upwards to be attached to the lower end surface of the paperboard 3, the deformation state of the suction cup 23 is not larger than the inner diameter of the cutting hole, and the horizontal tangential plane of the upper end of the suction cup 23 is lower than the upper end surface of the sleeve frame 20.

In this embodiment: when the hollow rod 21 moves upwards in the punching process, the supporting rod 37 of the hollow rod 21 slides downwards, when the hollow rod 21 does not move to the uppermost end, the supporting rod 37 of the hollow rod is not contacted with the limiting ball 36 any more, namely the limiting ball 36 blocks the lower port of the limiting cavity 34 under the action of the spring III 35, at the moment, the lower end of the hollow rod 21 is in a closed state, and when the hollow rod 21 continuously moves upwards, part of air between the sucking disc 23 and the lower end face of the paperboard 3 is discharged, so that negative pressure is formed, and the lower end face of the punching position of the paperboard 3 is adsorbed;

when the hollow rod 21 is reset downwards after punching, the hollow rod 21 can absorb paper sheets punched by the paper board 3 to move downwards under the action of negative pressure at first, and in the continuous downward moving process, the gravity of the hollow rod 21 and the counterweight base 33 can enable the supporting rod 37 to push the limit ball 36 upwards, so that the bottom of the hollow rod 21 is no longer in a closed state, and after air enters the inside of the sucker 23, the paper sheets are no longer absorbed, and in this way, the waste paper sheets generated by punching can be ensured to be separated from the paper board 3 stably and not left in the paper board 3;

the suction cup 23 is separated from the cut paper sheet when being reset downwards by the height difference between the suction cup 23 and the top surface of the sleeve frame 20, and the paper sheet is blown away from the upper part of the sleeve frame 20 by the action of a fan.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. The utility model provides a full-automatic drilling equipment for cardboard, includes two frame plates (1) that are symmetric distribution, and two equal fixed mounting in the outside of frame plate (1) has supporting legs (2), two be equipped with cardboard (3) between frame plate (1), the upper portion of frame plate (1) is through installation buckle (5) fixed mounting has two sets of motors (4) that are symmetric distribution, every group the quantity of motor (4) is a plurality of, and common fixed mounting has an axial displacement device between a plurality of installation buckle (5) of same group, its characterized in that: two rows of fans which are oppositely distributed are correspondingly arranged at the bottom of the paperboard (3), and the air supply direction of the fans is that the outer side of the frame plate (1) is conveyed towards the direction of the symmetry line of the paperboard (3);

the punching mechanism (6) is used for carrying out punching treatment on the paper board (3), the punching mechanism (6) is arranged at the output end of the motor (4), and a bearing mechanism (7) is arranged at the bottom of the paper board (3) corresponding to the lower part of the punching mechanism (6);

the supporting mechanism (7) is triggered along with the operation of the punching mechanism (6), and the tilting rod assembly (9) is arranged between the punching mechanism (6) and the supporting mechanism (7).

2. A fully automatic punching apparatus for paperboard according to claim 1, characterized in that: the punching mechanism (6) comprises a rotating shaft (11) fixedly mounted at the output end of the motor (4), a sleeve (12) is sleeved on the outer periphery of the rotating shaft (11) in a sliding mode, a sliding rod (15) which is in sliding fit with the sleeve (12) is fixedly mounted at the bottom of the rotating shaft (11), a plurality of cutters (16) which are distributed at equal intervals in circumference are fixedly mounted on the lower end face of the sliding rod (15), a sliding sheet (13) which is in sliding fit with the sleeve (12) is fixedly sleeved on the outer surface of the sliding rod (15), a spring I (14) is arranged at the lower end of the sliding sheet (13), an upper pressing foot (18) is fixedly sleeved on the periphery of the bottom of the sleeve (12), two retaining columns (17) which are in sliding fit with the mounting buckle (5) are fixedly mounted at the upper end of the pressing foot (18), and the inner diameter of the cutting hole is consistent with the outer diameter of a plurality of circumscribed circles of the cutters (16).

3. A fully automatic punching apparatus for paperboard according to claim 2, characterized in that: the novel rotary table is characterized in that through holes (30) are formed in the sliding rod (15) and the rotating shaft (11), a plurality of air inlets (31) communicated with the through holes (30) are formed in the top of the rotating shaft (11), and a plurality of blades (32) distributed at equal intervals in circumference are fixedly mounted on the inner wall of the sliding rod (15).

4. A fully automatic punching apparatus for paperboard according to claim 2, characterized in that: the bearing mechanism (7) is including laminating locate lower presser foot (19) of cardboard (3) bottom, just lower presser foot (19) with frame plate (1) are fixed connection, lower presser foot (19) with the structure size of last presser foot (18) is unanimous, the height of cutter (16) is greater than the thickness of cardboard (3), the bottom of lower presser foot (19) is equipped with negative pressure mechanism (8).

5. A fully automatic punching apparatus for paperboard as recited in claim 4, wherein: negative pressure mechanism (8) including fixed mounting in cover frame (20) of presser foot (19) bottom down, just the inside slip of cover frame (20) has inlayed chuck (22), the inside fixed mounting of chuck (22) has hollow pole (21), just the top intercommunication of hollow pole (21) is equipped with sucking disc (23), the surface slip of hollow pole (21) has cup jointed slide (24), just slide (24) with fixed mounting has spring two (25) between chuck (22), the bottom of hollow pole (21) is equipped with spacing subassembly (10).

6. A fully automatic punching apparatus for paperboard as recited in claim 5, wherein: the utility model discloses a pole that sticks up subassembly (9) including fixed mounting in depression bar (27) of installation buckle (5) lower extreme, just the bottom of presser foot (19) is fixed to be equipped with gag lever post (28), the outside of gag lever post (28) is equipped with through the axle rotation and sticks up pole (26), stick up pole (26) and be two pole form, stick up pole (26) be close to one end of depression bar (27) with the laminating of the lower terminal surface activity of depression bar (27), stick up pole (26) keep away from one side of depression bar (27) slip cup joint in the outside of empty core bar (21), just the bottom of slide (24) with stick up the surface slip laminating of pole (26).

7. A fully automatic punching apparatus for paperboard as recited in claim 5, wherein: spacing subassembly (10) including fixed mounting in dead lever (29) in the cover frame (20) outside, spacing chamber (34) have been seted up to the inside of hollow bar (21), just the lower extreme in spacing chamber (34) is the toper, the inside in spacing chamber (34) is equipped with spacing ball (36) through spring three (35) is fixed, just spacing ball (36) with the lower extreme toper mouth gomphosis in spacing chamber (34), the bottom of hollow bar (21) is equipped with die-pin (37) through the fretwork frame slip, just the upper end fixed mounting of die-pin (37) has the scattered tooth die-pin of arc, the external diameter of spacing ball (36) with the internal diameter of the scattered tooth die-pin of arc is unanimous, the bottom of die-pin (37) pass through the fixed plate with die-pin (29) is fixed connection.

8. A fully automatic punching apparatus for paperboard as recited in claim 5, wherein: the inner diameter of the sleeve frame (20) is smaller than that of the cutting hole, and the horizontal tangential plane of the upper end of the sucker (23) is lower than the upper end face of the sleeve frame (20).

9. A fully automatic punching apparatus for paperboard as recited in claim 6, wherein: the rotation point of the limiting rod (28) and the tilting rod (26) is close to one side of the pressing rod (27).

10. A fully automatic punching apparatus for paperboard as recited in claim 7, wherein: the limiting ball (36) is made of rubber material, and the bottom of the hollow rod (21) is fixedly sleeved with the counterweight base (33).