CN210477186U

CN210477186U - Paperboard rotary die cutting machine

Info

Publication number: CN210477186U
Application number: CN201920640212.4U
Authority: CN
Inventors: 黄源丽
Original assignee: Guangdong Xinlide Packaging Technology Co ltd
Current assignee: Guangdong Xinlide Packaging Technology Co ltd
Priority date: 2019-05-06
Filing date: 2019-05-06
Publication date: 2020-05-08
Anticipated expiration: 2029-05-06

Abstract

The utility model relates to the technical field of corrugated board die cutting equipment, in particular to a paperboard circular die cutting machine, which comprises a frame, a feeding mechanism, a line pressing roller and a die cutting knife roller; the machine frame is also provided with a bearing plate which is positioned at the paper outlet side of the line pressing roller and the die cutting knife roller and is used for bearing the paper plates after die cutting, and the bearing plate is provided with a baffle; the bearing plate is provided with a dovetail groove along the moving direction of the paper board, and the baffle plate is correspondingly provided with a dovetail block matched with the dovetail groove in a sliding manner; the dovetail block is equipped with positioning screw, and positioning screw's one end is equipped with the sucking disc, and the dovetail block sets up the logical groove that communicates with the dovetail, leads to the groove and include with positioning screw thread fit's screw through-hole and circular chamber, sucking disc rotatable coupling in circular intracavity and can contradict in the cell wall of dovetail to restriction dovetail block removes, and the one end that positioning screw kept away from the sucking disc passes the screw through-hole and extends to outside the screw through-hole. This application is favorable to reducing staff's intensity of labour, improves staff's receipts material efficiency.

Description

Paperboard rotary die cutting machine

Technical Field

The utility model relates to a corrugated container board cross cutting equipment technical field, more specifically says, it relates to a cardboard circle cross cutting machine.

Background

At present, in the production process of corrugated cases, a circular die cutting machine is needed to cut a corrugated board by pressing a film. The working parts of the plate platform and the press-cutting mechanism of the circular-press circular die-cutting machine are both cylindrical, and during working, the paper feeding roller sends the paper board to a position between the die-cutting knife roller and the line pressing roller, and the paper board is clamped by the paper feeding roller and the line pressing roller to carry out die-cutting and line pressing operation on the paper board.

A round die cutting machine for servo tracking and marking lines is disclosed in the Chinese patent with the publication number of CN108312624A, and comprises a frame, a feeding part, a conveying mechanism before the lines are pressed, a color mark tracking mechanism, a line pressing mechanism, a die cutting mechanism, a negative pressure adsorption mechanism and a transverse adjustment mechanism, wherein the feeding part, the conveying mechanism before the lines are pressed, the line pressing mechanism and the die cutting mechanism are sequentially arranged along the direction of a paper feeding plate, the color mark tracking mechanism is arranged on the upper part of the conveying mechanism before the lines are pressed, the negative pressure adsorption mechanism is arranged on the lower part of the conveying mechanism before the lines are pressed, the feeding part comprises a feeding adjustment mechanism and a pressing-free servo feeding platform, the conveying mechanism after the lines are pressed is arranged between the line pressing mechanism and the die cutting mechanism, and the color mark tracking mechanism is arranged on the upper part. The invention has the advantages of no press conveying, high strength of the paper board after die cutting, quick forming of the pressing line and the die cutting and accurate die cutting position.

In the technology, the paperboard is subjected to die cutting under the action of the line pressing roller and the die cutting knife roller and is directly discharged after die cutting. In the in-process at the cardboard ejection of compact, because the at work of crimping roller and die cutter roller all is in high-speed running state and lead to the cardboard because inertia is direct fly out and directly fall on the ground between crimping roller and die cutter roller, lead to the cardboard after the cross cutting to distribute in disorder on subaerial, the staff need pile up the cardboard piece by piece when receiving the material, this kind of receipts material mode of circle pressure die cutter is comparatively loaded down with trivial details, staff's work load has been increased, the influence has reduced staff's receipts material efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the not enough of above-mentioned prior art, the utility model aims at providing a cardboard circle cross cutting machine is favorable to reducing staff's intensity of labour, improves staff's receipts material efficiency.

The above technical purpose of the present invention can be achieved by the following technical solutions: a circular paperboard die cutting machine comprises a rack, a feeding mechanism arranged on the rack, a line pressing roller rotationally connected to the rack and a die cutting knife roller rotationally connected to the rack; the machine frame is also provided with a bearing plate which is positioned at the paper outlet side of the line pressing roller and the die cutting knife roller and is used for bearing the paper plates after die cutting, and the bearing plate is provided with a baffle plate used for limiting the paper plates to move out of the bearing plate along the paper outlet direction of the line pressing roller and the die cutting knife roller; the bearing plate is provided with a dovetail groove along the moving direction of the paper plate, and the baffle plate is correspondingly provided with a dovetail block in sliding fit with the dovetail groove;

the dovetail block is provided with positioning screw, positioning screw's one end is equipped with the sucking disc, the dovetail block seted up with the logical groove of dovetail intercommunication, lead to the groove include with positioning screw thread fit's screw through-hole and circular chamber, sucking disc rotatable coupling in circular intracavity can contradict in the cell wall of dovetail, in order to restrict the dovetail block removes, positioning screw keeps away from the one end of sucking disc is passed the screw through-hole extends to outside the screw through-hole.

By adopting the technical scheme, when the circular die cutting machine works, the feeding mechanism conveys the paper boards to be die-cut between the line pressing roller and the die cutting knife roller, the line pressing roller and the die cutting knife roller are matched to carry out rapid die cutting on the paper boards, after the die cutting of the paper boards is finished, the paper boards directly fly out from the space between the line pressing roller and the die cutting knife roller due to inertia and fall on the bearing plate, and under the action of the baffle, the paper boards can be stacked on the bearing plate, so that the subsequent material receiving of workers is facilitated, the process that the workers stack the paper boards one by one is omitted, and the material receiving efficiency of the workers is improved to a certain extent; and the bearing plate is provided with the dovetail along the moving direction of the paper board, a worker can adjust the position of the baffle on the bearing plate according to the length of the paper board, and the positioning screw is matched with the sucker to limit the dovetail to move, so that the baffle is positioned on the bearing plate, and at the moment, a sufficient space is formed between the baffle and the bearing plate for placing the paper supply plate, thereby being beneficial to improving the applicability of the baffle.

Preferably, one end of the dovetail groove is an insertion end for inserting the dovetail block, and the other end of the dovetail groove is a closed end.

Through adopting above-mentioned technical scheme, when needs change the baffle, the staff removes the positioning action of the dovetail piece of positioning screw and sucking disc earlier, again with the dovetail piece from the insertion end roll-off of dovetail, can realize tearing down the baffle from the loading board.

Preferably, the baffle is used for blocking the end face of the paperboard and is fixedly provided with a flexible pad.

By adopting the technical scheme, when the paperboard flies out and touches the baffle, the flexible pad of the baffle plays a role in protecting the paperboard.

Preferably, one end of the positioning screw rod, which is far away from the sucker, is fixedly provided with a butterfly nut.

Through adopting above-mentioned technical scheme, the butterfly nut setting further is convenient for the staff to rotate the butterfly nut.

Preferably, the suction cup is in threaded connection with the positioning screw.

Through adopting above-mentioned technical scheme, sucking disc and positioning screw threaded connection, when sucking disc or positioning screw need be changed, the accessible rotates the sucking disc and can tears the sucking disc off from positioning screw, can change sucking disc or positioning screw alone, need not to change positioning screw and sucking disc whole, is favorable to saving the cost.

Preferably, the suction cup is an elastic suction cup.

Through adopting above-mentioned technical scheme, elastic chuck has elasticity, and at the in-process of cardboard dropping at the loading board, the loading board shakes easily, and elastic chuck's elasticity is favorable to reducing the influence of loading board vibrations to positioning screw, is favorable to improving positioning screw and the effect that the sucking disc cooperation restricted the forked tail piece and removes.

Preferably, the part of the rack used for installing the bearing plate is an installation part, and an adjusting assembly is arranged between the installation part and the bearing plate, so that the bearing plate can move up and down relative to the installation part.

Through adopting above-mentioned technical scheme, when the quantity that the cardboard on the loading board piled up more and more, the adjusting part can make the loading board down remove for more cardboards can be piled up on the loading board once, and the staff of being convenient for is follow-up takes out the cardboard from the loading board simultaneously.

Preferably, the adjusting assembly comprises a telescopic rod arranged between the bearing plate and the mounting part and a compression spring sleeved on the telescopic rod;

the telescopic rod comprises a fixing part and a moving part, the lower end of the fixing part is fixedly arranged on the mounting part, the upper end of the fixing part is connected with the lower end of the moving part, the moving part can move along the length direction of the fixing part, and the upper end of the moving part is fixedly arranged at the bottom of the bearing plate;

the compression spring is sleeved on the fixing portion, one end of the compression spring is fixedly connected with the mounting portion, and the other end of the compression spring is fixedly connected with the moving portion.

By adopting the technical scheme, the bearing plate gradually descends along with more and more paper boards on the bearing plate, at the moment, the bearing plate enables the moving part to move along the fixed part, the compression spring is gradually compressed, and at the moment, the bearing plate can bear more paper boards; and is convenient for the worker to unload.

Preferably, the number of the adjusting assemblies is four, and the four adjusting assemblies are respectively and correspondingly arranged at four corners of the bearing plate.

Through adopting above-mentioned technical scheme, adjusting part is provided with four, and every adjusting part sets up respectively in four edges of loading board, further improves the guide effect of adjusting part to the loading board.

To sum up, the utility model discloses following beneficial effect has:

1. after the die cutting of the paperboards is finished, the paperboards directly fly out from the space between the line pressing roller and the die cutting knife roller due to inertia and fall on the bearing plate, and the paperboards can be stacked on the bearing plate under the action of the baffle plate, so that the subsequent material receiving of workers is facilitated, the process that the workers stack the paperboards one by one is omitted, and the material receiving efficiency of the workers is improved to a certain extent;

2. when the baffle needs to be replaced, a worker firstly releases the positioning effect of the positioning screw and the dovetail block of the sucker and then slides the dovetail block out from the insertion end of the dovetail groove, so that the baffle can be detached from the bearing plate;

3. the elastic sucker has elasticity, the bearing plate is easy to vibrate when the paper board falls on the bearing plate, the elasticity of the elastic sucker is favorable for reducing the influence of vibration of the bearing plate on the positioning screw rod, and the effect of limiting the dovetail block to move by matching of the positioning screw rod and the sucker is favorable for improving.

Drawings

FIG. 1 is a schematic structural view of a circular die-cutting machine for making paperboard in an embodiment of the present invention;

FIG. 2 is another angle diagram of the paperboard rotary die-cutting machine according to the embodiment of the present invention;

FIG. 3 is a partial sectional view of the bearing plate and baffle in the embodiment of the present invention;

fig. 4 is a schematic view illustrating the state of the first telescopic cylinder and the second telescopic cylinder when the loading board is in the unloading state according to the embodiment of the present invention.

Reference numerals: 1. a frame; 101. an installation part; 102. a mounting frame; 2. a feeding mechanism; 21. a limiting component; 22. a conveyor belt; 31. a wire pressing roller; 32. a die-cutting knife roll; 4. a carrier plate; 41. a dovetail groove; 5. a baffle plate; 51. a blocking part; 52. a connecting portion; 521. a dovetail block; 6. a through groove; 61. a threaded through hole; 62. a circular lumen; 71. positioning a screw rod; 72. a suction cup; 73. a wing nut; 8. a flexible pad; 9. a telescopic rod; 91. a fixed part; 92. a moving part; 10. a compression spring; 11. a first telescopic cylinder; 12. a second telescopic cylinder; 13. pushing the plate; 14. a rubber layer.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

A circular paperboard die cutting machine is shown in figures 1 and 2 and comprises a frame 1, a feeding mechanism 2 arranged on the frame 1, a line pressing roller 31 rotationally connected to the frame 1 and a die cutting knife roller 32 rotationally connected to the frame 1. The feeding mechanism 2 comprises a limiting component 21 for limiting the corrugated board and a conveying belt 22 for conveying the corrugated board to a line pressing roller 31 and a die cutting knife roller 32, the line pressing roller 31 is located above the die cutting knife roller 32, the line pressing roller 31 plays a line pressing role for the corrugated board, the die cutting knife roller 32 plays a die cutting role for the corrugated board, and the line pressing roller 31 and the die cutting knife roller 32 are provided with paper discharging sides. The frame 1 is further provided with a bearing plate 4 for receiving the die-cut paperboard, and the bearing plate 4 is positioned on the paper outlet side of the line pressing roller 31 and the die cutting knife roller 32. After the paper board is processed by the line pressing roller 31 and the die cutter roller 32, the paper board flies out from the paper outlet side of the line pressing roller 31 and the die cutter roller 32, and in order to enable the paper board to stably drop on the bearing plate 4 after flying out from the paper outlet side of the line pressing roller 31 and the die cutter roller 32, the bearing plate 4 is further provided with a baffle 5 which is vertically arranged along the paper outlet direction of the line pressing roller 31 and the die cutter roller 32. When the paper sheets are conveyed between the line pressing roller 31 and the die cutting knife roller 32, the line pressing roller 31 and the die cutting knife roller 32 operate at high speed and perform line pressing and die cutting operations on the paper sheets, and after the line pressing and die cutting operations, the paper sheets fly out from the paper outlet sides of the line pressing roller 31 and the die cutting knife roller 32 and are stacked on the loading plate 4 under the action of the baffle 5.

Referring to fig. 3, the baffle 5 includes a blocking portion 51 for blocking the cardboard flying out of the loading plate 4 and a connecting portion 52, the blocking portion 51 is vertically disposed, and the connecting portion 52 is horizontally disposed. In this embodiment, in order to ensure the structural strength of the baffle 5, the baffle 5 is an iron plate, and the end face of the blocking portion 51 of the baffle 5 for blocking the flying-out of the paper board is fixedly provided with a layer of flexible pad 8, and when the paper board flies out from the paper outlet side of the line pressing roller 31 and the die cutter roller 32 and touches the baffle 5, the flexible pad 8 of the baffle 5 protects the paper board.

As shown in fig. 3, the carrier plate 4 is provided with a dovetail groove 41 in the moving direction of the paper plate, and in the present embodiment, the notch direction of the dovetail groove 41 is directed in a vertically upward direction. The connecting portion 52 is correspondingly provided with a dovetail block 521 slidably engaged with the dovetail groove 41. One end of the dovetail groove 41 is an insertion end into which the dovetail block 521 is inserted, and the other end of the dovetail groove 41 is a closed end. Thereby, the baffle 5 can move along the moving direction of the paper boards, so that a sufficient space can be formed between the baffle 5 and the carrying plate 4 for placing the paper boards with different lengths. In addition, the dovetail block 521 is not easily removed from the notch direction of the dovetail groove 41, and the stability of the connection between the dovetail block 521 and the dovetail groove 41 is further improved.

Referring to fig. 3, the dovetail block 521 is provided with a positioning screw 71, and one end of the positioning screw 71 is threadedly connected with a suction cup 72. In the embodiment, the positioning screw 71 is vertically disposed, and the suction cup 72 is threadedly connected to the lower end of the positioning screw 71. The dovetail block 521 is provided with a through slot 6 communicated with the dovetail groove 41, the through slot 6 comprises a threaded through hole 61 and a circular cavity 62, and the positioning screw 71 can be in threaded fit with the threaded through hole 61, so that one end of the positioning screw 71, which is far away from the suction cup 72, penetrates through the threaded through hole 61 and the suction cup 72 is located in the circular cavity 62. The worker rotates the positioning screw 71, so that the positioning screw 71 drives the suction cup 72 to move in the direction of the dovetail groove 41, and the suction cup 72 is rotatably connected to the circular cavity 62 and can be adsorbed on the wall of the dovetail groove 41 to limit the movement of the dovetail block 521. One end of the positioning screw rod 71, which is far away from the suction cup 72, is fixedly provided with a butterfly nut 73, so that the convenience of rotating the positioning screw rod 71 by a worker is improved.

In this embodiment, the suction cup 72 is a resilient suction cup 72. In the process that the paper board falls on the bearing plate 4, the bearing plate 4 is easy to vibrate, and the elasticity of the elastic sucker 72 is beneficial to reducing the influence of the vibration of the bearing plate 4 on the positioning screw 71 and improving the effect of limiting the movement of the dovetail block 521 by the matching of the positioning screw 71 and the sucker 72.

Referring to fig. 1 and 4, a portion of the frame 1 for mounting the bearing plate 4 is a mounting portion 101, and an adjusting assembly is disposed between the mounting portion 101 and the bearing plate 4, so that the bearing plate 4 can move up and down relative to the mounting portion 101. In this embodiment, adjusting part is provided with four, and four adjusting part correspond respectively and locate four edges of loading board 4 bottom for four adjusting part are rectangular array and distribute, further improve the stability that loading board 4 reciprocated.

Referring to fig. 1 and 4, the adjusting assembly includes a telescopic rod 9 provided between the loading plate 4 and the mounting part 101 and a compression spring 10 provided to the telescopic rod 9. The telescopic rod 9 includes a fixing portion 91 and a moving portion 92, in this embodiment, the fixing portion 91 and the moving portion 92 are both cylindrical, the fixing portion 91 is a cylindrical rod, and the moving portion 92 is a cylindrical sleeve. The lower end of the fixing portion 91 is fixedly disposed on the upper surface of the mounting portion 101, the upper end of the fixing portion 91 is connected to the lower end of the moving portion 92, the upper end of the moving portion 92 is fixedly disposed at the bottom of the supporting plate 4, and the moving portion 92 can move along the length direction of the fixing portion 91. The compression spring 10 is sleeved on the fixing portion 91, one end of the compression spring 10 is fixedly connected with the mounting portion 101, and the other end of the compression spring 10 is fixedly connected with the lower end of the moving portion 92. When the compression spring 10 is in a natural state, the bearing plate 4 is in a ready-to-charge state; when the compression spring 10 is in the compressed state, the carrier plate 4 is in the discharge state.

Before the rotary die cutting machine works, the state of the bearing plate 4 is a preparation charging state at the moment. In the working process of the rotary die cutting machine, along with more and more paper boards on the bearing plate 4, the gravity of the paper boards makes the bearing plate 4 gradually descend, at the moment, the bearing plate 4 makes the moving part 92 move along the fixing part 91, the compression spring 10 is gradually compressed, and at the moment, more paper boards can be loaded on the bearing plate 4. When the loading plate 4 is loaded with enough paper boards, the compression spring 10 is in a compressed state, the loading plate 4 cannot move downwards continuously, the loading plate 4 is in a discharging state, and a worker can perform discharging operation.

Referring to fig. 1 and 4, one side of the carrying floor 4 is a discharge side for discharging the staff. In order to facilitate the unloading of the working personnel, the frame 1 is also fixedly provided with a mounting frame 102. In particular, the mounting bracket 102 is located on the mounting portion 101 of the frame 1 on a side of the mounting portion 101 facing away from the discharge side of the carrier plate 4. The loading plate 4 is provided with a load cell (not shown in the figure) which is electrically connected with a controller (not shown in the figure). Two first telescopic cylinders 11 for limiting the upward movement of the bearing plate 4 and a second telescopic cylinder 12 horizontally arranged are fixedly arranged on the mounting frame 102. Two first telescopic cylinder 11 all are vertical setting, and two first telescopic cylinder 11 all are located the top of loading board 4, and first telescopic cylinder 11 is connected with the controller electricity, and when loading board 4 was in the state of unloading, the piston rod extension of the steerable first telescopic cylinder 11 of controller was contradicted in the upper surface of loading board 4 to realize restricting loading board 4 rebound. The controller is electrically connected with a second telescopic cylinder 12, a piston rod of the second telescopic cylinder 12 is fixedly provided with a push plate 13 for pushing the paper board on the bearing plate 4 to the discharging side of the bearing plate 4, and a rubber layer 14 is fixedly arranged on the side surface of the push plate 13 for pushing the paper board. When the loading plate 4 is in the unloading state, the controller can control the piston rod of the second telescopic cylinder 12 to extend out, the piston rod of the second telescopic cylinder 11 drives the push plate 13 to move, in the process, the push plate 13 slides along the loading plate 4, and the push plate 13 can slide along the unloading side facing the loading plate 4 so as to push the paper board on the loading plate 4 to the unloading side of the loading plate 4, so that the paper board on the loading plate 4 is unloaded.

After the pushing plate 13 of the second telescopic cylinder 12 pushes out all the paper boards on the bearing plate 4 from the discharging side of the bearing plate 4, because the weight borne by the bearing plate 4 is smaller at this time, the controller controls the piston rod of the second telescopic cylinder 12 and the pushing plate 13 to retract, the first telescopic cylinder 11 enables the bearing plate 4 to be stably kept in the discharging state, and the piston rod of the second telescopic cylinder 12 can retract more smoothly.

When the bearing plate 4 is in the unloading state, the weighing sensor of the bearing plate 4 sends a signal to the controller, and the controller controls the piston rod of the first telescopic cylinder 11 to extend until the piston rod of the first telescopic cylinder 11 abuts against the upper surface of the bearing plate 4, so that the bearing plate 4 is limited to move upwards; next, the controller controls the piston rod of the second telescopic cylinder 12 to extend, the push plate 13 moves along with the piston rod of the second telescopic cylinder 12 and slides along the bearing plate 4, so that the push plate 13 pushes the paper plate on the bearing plate 4 to the discharging side of the bearing plate 4, and when the weight borne by the bearing plate 4 is reduced, the weighing sensor sends a signal to the controller, so that the controller controls the piston rod of the second telescopic cylinder 12 to retract; next, the controller controls the piston rod of the first telescopic cylinder 11 to retract, and at this time, under the action of the compression spring 10, the bearing plate 4 moves upwards, so as to be convenient for bearing the paper board subsequently.

The specific working process is as follows:

before the rotary die cutting machine works, the compression spring 10 is in a natural state, and the bearing plate 4 is in a ready-to-charge state at the moment. The shutter 5 is now positioned at the current position by the cooperation of the positioning screw 71 and the suction cup 72.

In the working process of the circular die cutting machine, the feeding mechanism 2 conveys the paper boards between the line pressing roller 31 and the die cutting knife roller 32, the line pressing roller 31 is matched with the die cutting knife roller 32 to press lines and cut die on the paper boards, and next, under the high-speed operation of the line pressing roller 31 and the die cutting knife roller 32, the paper boards fly out from between the line pressing roller 31 and the die cutting knife roller 32 and are stacked on the bearing plate 4 under the action of the baffle 5.

As more and more paper sheets are stacked on the carrier plate 4, the carrier plate 4 gradually moves downward, the carrier plate 4 causes the moving part 92 to move along the fixing part 91, and the compression spring 10 is gradually compressed; more cardboard can be carried on the carrier plate 4.

When enough paper boards are loaded on the bearing plate 4, the compression spring 10 is in a compressed state at the moment, the bearing plate 4 cannot move downwards continuously, the bearing plate 4 is in a discharging state at the moment, and a worker can push the board trolley for conveying the paper boards to the discharging side of the bearing plate 4; at this time, the load cell of the bearing plate 4 sends a signal to the controller, and the controller controls the piston rod of the first telescopic cylinder 11 to extend out towards the upper surface of the bearing plate 4 and makes the piston rod of the first telescopic cylinder 11 keep abutting against the upper surface of the bearing plate 4 so as to limit the upward movement of the bearing plate 4; next, the controller controls the piston rod of the second telescopic cylinder 12 to extend, and at this time, the push plate 13 moves along with the piston rod of the second telescopic cylinder 12 and pushes the paper board on the bearing plate 4 to the discharging side of the bearing plate 4, so that the paper board on the bearing plate 4 moves to the board vehicle from the discharging side, and the subsequent transportation of the paper board by a worker is facilitated. After the piston rod of the second telescopic cylinder 12 pushes all the paper boards on the bearing plate 4 out of the discharging side of the bearing plate 4, the controller retracts the piston rod of the second telescopic cylinder 12 until the push plate 13 is separated from the bearing plate 4; next, the controller controls the telescopic rod 9 of the first telescopic cylinder 11 to retract again, and at this time, the compression spring 10 rapidly restores the natural state and moves the loading plate 4 upward, so that the loading plate 4 restores the ready-to-load state.

When the bearing plate 4 needs to bear paperboards with different lengths, a worker rotates the butterfly nut 73 to enable the butterfly nut 73 to drive the positioning screw 71 to rotate, so that the suction disc 72 is not adsorbed to the bottom of the dovetail groove 41 any more; next, the worker can move the baffle 5 until the baffle 5 is adjusted to a required position, finally, the butterfly nut 73 is rotated, the butterfly nut 73 drives the positioning screw 71 to rotate until the suction cup 72 at the lower end of the positioning screw 71 is adsorbed on the wall of the dovetail groove 41, so that the baffle 5 is positioned at the current position, and at this time, the bearing plate 4 has enough space for placing the paper board.

The above embodiments are merely illustrative of the present invention, and are not intended to limit the present invention, and those skilled in the art can make modifications of the present embodiments without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent law within the scope of the present invention.

Claims

1. A circular paperboard die cutting machine comprises a rack (1), a feeding mechanism (2) arranged on the rack (1), a line pressing roller (31) rotationally connected to the rack (1) and a die cutting knife roller (32) rotationally connected to the rack (1); the method is characterized in that: the machine frame (1) is further provided with a bearing plate (4) which is located on the paper outlet side of the line pressing roller (31) and the die cutting knife roller (32) and used for bearing the paper plates subjected to die cutting, and a baffle (5) used for limiting the paper plates to move out of the bearing plate (4) is arranged on the bearing plate (4) along the paper outlet direction of the line pressing roller (31) and the die cutting knife roller (32); the bearing plate (4) is provided with a dovetail groove (41) along the moving direction of the paper plate, and the baffle (5) is correspondingly provided with a dovetail block (521) matched with the dovetail groove (41) in a sliding manner;

dovetail (521) are provided with positioning screw (71), the one end of positioning screw (71) is equipped with sucking disc (72), dovetail (521) seted up with logical groove (6) of dovetail (41) intercommunication, lead to groove (6) include with positioning screw (71) screw-thread fit's screw through-hole (61) and circular chamber (62), sucking disc (72) rotatable coupling in circular chamber (62) and can contradict in the cell wall of dovetail (41), in order to restrict dovetail (521) remove, positioning screw (71) are kept away from the one end of sucking disc (72) is passed screw through-hole (61) and is extended to outside screw through-hole (61).

2. A paperboard rotary die cutting machine as claimed in claim 1, wherein: one end of the dovetail groove (41) is an insertion end for inserting the dovetail block (521), and the other end of the dovetail groove (41) is a closed end.

3. A paperboard rotary die cutting machine as claimed in claim 1, wherein: the baffle (5) is used for blocking the end face of the paperboard and is fixedly provided with a flexible pad (8).

4. A paperboard rotary die cutting machine as claimed in claim 1, wherein: and a butterfly nut (73) is fixedly arranged at one end of the positioning screw rod (71) departing from the sucker (72).

5. A paperboard rotary die cutting machine as claimed in claim 1, wherein: the sucker (72) is in threaded connection with the positioning screw rod (71).

6. A paperboard rotary die cutting machine according to claim 5, characterized in that: the sucker (72) is an elastic sucker (72).

7. A paperboard rotary die cutting machine as claimed in claim 1, wherein: frame (1) is used for the installation the part of loading board (4) is installation department (101), installation department (101) with be provided with adjusting part between loading board (4), so that loading board (4) can for installation department (101) reciprocate.

8. A paperboard rotary die cutting machine as claimed in claim 7, wherein: the adjusting assembly comprises a telescopic rod (9) arranged between the bearing plate (4) and the mounting part (101) and a compression spring (10) sleeved on the telescopic rod (9);

the telescopic rod (9) comprises a fixing part (91) and a moving part (92), the lower end of the fixing part (91) is fixedly arranged on the mounting part (101), the upper end of the fixing part (91) is connected with the lower end of the moving part (92), the moving part (92) can move along the length direction of the fixing part (91), and the upper end of the moving part (92) is fixedly arranged at the bottom of the bearing plate (4);

compression spring (10) cover is located fixed part (91), the one end of compression spring (10) with installation department (101) fixed connection, the other end of compression spring (10) with removal portion (92) fixed connection.

9. A paperboard rotary die cutting machine as claimed in claim 8, wherein: the number of the adjusting assemblies is four, and the four adjusting assemblies are respectively and correspondingly arranged at four corners of the bearing plate (4).