CN210477185U

CN210477185U - Rotary die-cutting machine

Info

Publication number: CN210477185U
Application number: CN201920638850.2U
Authority: CN
Inventors: 郑忠强; 吴付科
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 rotary die cutting machine, which comprises a frame, a feeding mechanism arranged on the frame, a line pressing roller rotationally connected with the frame and a die cutting knife roller rotationally connected with the frame; 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 loading board has seted up the spout along the play paper direction of line ball roller and die cutter roller, and the baffle correspondence is equipped with the slider that can follow the spout and slide, is equipped with two grip blocks in the spout, and the grip block can be followed the spout and slided, is equipped with the regulating part that is used for adjusting two grip blocks intervals on the grip block. The space between this application adjustable baffle and the loading board, the different cardboard of length is collected to the staff of being convenient for, is favorable to increasing the application scope of loading board and baffle.

Description

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 circle cross cutting machine is pressed to circle.

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. A circular die cutting machine in the prior art, as shown in fig. 1, includes a frame 1, a feeding mechanism 2 disposed on the frame 1, a line pressing roller (not shown) rotatably connected to the frame 1, and a die cutting knife roller (not shown) rotatably connected to the frame 1. The line pressing roller and the die cutting knife roller can operate at high speed, when the line pressing roller and the die cutting knife roller operate at high speed, the functions of quickly pressing lines and die cutting are achieved for the paperboard on one hand, and the function of quickly discharging the paper after the lines are pressed and the die cutting can be achieved on the other hand. The rack 1 is also provided with a bearing plate 4 for bearing the die-cut paperboard, and the bearing plate 4 is positioned on the paper outlet side of the line pressing roller and the die cutting knife roller. The bearing plate 4 is provided with a baffle 5 used for limiting the paper board to move out of the bearing plate 4 along the paper outlet direction of the line pressing roller and the die cutting knife roller. The feeding mechanism 2 conveys the paper boards between the line pressing roller and the die cutting knife roller, after the line pressing roller and the die cutting knife roller press the paper boards to complete line pressing and die cutting, the paper boards are discharged from the paper discharging side of the line pressing roller and the die cutting knife roller under the action of high-speed operation of the line pressing roller and the die cutting knife roller, and the baffle 5 can prevent the paper boards from flying out of the bearing plate 4, so that the paper boards after being discharged can stably fall on the bearing plate 4.

In the above technology, since the baffle 5 is generally welded and fixed on the bearing plate 4, when a longer paper board needs to be die-cut, the space between the bearing plate 4 and the baffle 5 is not enough for placing the paper board, so that the applicability between the bearing plate 4 and the baffle 5 is small.

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 circle cross cutting machine is pressed to circle, but the space between adjustable baffle and the loading board, the staff of being convenient for collects the different cardboard of length, is favorable to increasing the application scope of loading board and baffle.

The above technical purpose of the present invention can be achieved by the following technical solutions: a circle-pressing circle 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 loading board is followed the line ball roller and the play paper direction of die-cutting knife roller has seted up the spout, the baffle correspondence is equipped with and follows the slider that the spout slided, be provided with two relative grip blocks that set up in the spout, the grip block can be followed the spout slides, be equipped with on the grip block and be used for adjusting two the regulating part of interval between the grip block, so that two the grip block centre gripping or break away from the slider.

By adopting the technical scheme, when the circular die cutting machine works, the feeding mechanism conveys the paperboard to be die-cut between the line pressing roller and the die cutting knife roller, the line pressing roller is matched with the die cutting knife roller to perform rapid die cutting on the paperboard, after the die cutting of the paperboard is completed, the paperboard directly flies out from the line pressing roller and the die cutting knife roller due to inertia and falls on the bearing plate, the paperboard can be stacked on the bearing plate under the action of the baffle plate, the sliding groove is formed in the bearing plate along the moving direction of the paperboard, a worker can adjust the position of the baffle plate on the bearing plate according to the length of the paperboard, when the baffle plate needs to be moved, the clamping plates are separated from the surface of the sliding block under the action of the adjusting piece, when the baffle plate needs to be fixed on the bearing plate, the sliding block is clamped by the two clamping plates to limit the movement of the sliding. At the moment, a sufficient space is formed between the baffle and the bearing plate for placing the paper feeding plate, which is beneficial to improving the applicability of the baffle.

Preferably, the adjusting piece is an adjusting screw rod used for driving the two clamping blocks to move close to or away from each other.

Through adopting above-mentioned technical scheme, the regulating part is accommodate the lead screw setting, and when the staff rotated accommodate the lead screw, two grip blocks can be close to each other or keep away from to realize the centre gripping or loosen the slider, when the staff stopped to rotate accommodate the lead screw, accommodate the self-locking function of lead screw made the grip block fixed at the present position, realized that the grip block keeps the state of centre gripping slider.

Preferably, the two ends of the adjusting screw rod are rotatably connected to the bearing plate, the adjusting screw rod is in threaded connection with the clamping plates, a horizontally arranged guide rod is arranged in the chute, and the two ends of the guide rod penetrate through the two clamping plates respectively and are fixed on the chute walls of the chute.

Through adopting above-mentioned technical scheme, under the guide effect of guide bar, staff's accessible rotates accommodate the lead screw and then makes two grip blocks be close to each other or keep away from each other.

Preferably, the adjusting screw rod is provided with one first thread section and one second thread section, the screwing directions of the first thread section and the second thread section are opposite, and the two clamping plates are respectively in threaded fit with the first thread section and the second thread section correspondingly.

Through adopting above-mentioned technical scheme, the staff accessible rotates an accommodate the lead screw and can two grip blocks of synchronous drive be close to each other or keep away from, is favorable to improving the convenience of staff's operation.

Preferably, one end of the adjusting screw rod, which is far away from the two clamping plates, is fixedly provided with a rotating block.

Through adopting above-mentioned technical scheme, the turning block setting is convenient for the staff to rotate accommodate the lead screw and rotates.

Preferably, the surface of the turning block is provided with a protrusion in a rotation direction of the turning block.

Through adopting above-mentioned technical scheme, when staff's drive turning block rotated, the bellying setting played the antiskid effect, and the staff of further being convenient for drives the turning block and rotates.

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.

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

1. the loading board is provided with the spout along the moving direction of cardboard, and the staff can adjust the position of baffle on the loading board according to the length of cardboard, and when needs removal baffle, under the effect of regulating part, the grip block breaks away from the slider surface, and when needs were fixed the baffle on the loading board, under the effect of regulating part, the slider was carried in order to restrict the slider and is removed to two grip blocks. At the moment, a sufficient space is formed between the baffle and the bearing plate for placing the paper feeding plate, which is beneficial to improving the applicability of the baffle;

2. in the process that the worker drives the adjusting screw rod to rotate, the guide rod can limit the clamping plate to rotate, and meanwhile, the guide function is achieved on the sliding of the clamping plate, so that the clamping plate can move more stably;

3. staff's accessible rotates an accommodate the lead screw and can the mutual approaching of two grip blocks of synchronous drive or keep away from, is favorable to improving the convenience of staff's operation.

Drawings

FIG. 1 is a schematic diagram of a circular die cutting machine according to the prior art;

FIG. 2 is a schematic structural view of a rotary die-cutting machine according to an embodiment of the present invention;

FIG. 3 is a schematic view of another perspective of the rotary die-cutting machine according to an embodiment of the present invention;

FIG. 4 is a schematic view of the assembly relationship between the baffle and the bearing plate according to the embodiment of the present invention;

fig. 5 is a schematic view illustrating the states of the first and second telescopic cylinders when the loading plate 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 chute; 5. a baffle plate; 51. a blocking part; 52. a connecting portion; 521. a slider; 6. a clamping plate; 7. adjusting the screw rod; 71. rotating the block; 72. a boss portion; 73. a guide bar; 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 circle die cutting machine, refer to fig. 2 and fig. 3, including the stander 1, locate the feed mechanism 2 of the stander, connect to the line roller 31 of the stander 1 and connect to the die cutter roller 32 of the stander 1 rotatably; 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. The rack 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. 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 and 4, the carrying plate 4 is provided with a chute 41 along the paper discharging direction of the line pressing roller 31 and the die cutter roller 32, and the length direction of the chute 41 is the same as the paper discharging direction of the line pressing roller 31 and the die cutter roller 32. One end of the slide groove 41 is an open end, and the other end of the slide groove 41 is a closed end. The baffle 5 comprises a blocking part 51 and a connecting part 52, wherein the blocking part 51 is vertically arranged and used for blocking the flying-out of the bearing plate 4 in the paper-out process of the paper board. 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 configured as an iron plate, and the end face of the baffle 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, when the paper board flies out from the paper outlet side of the line pressing roller 31 and the die cutting knife roller 32 and touches the baffle 5, the flexible pad 8 of the baffle 5 protects the paper board.

As shown in fig. 4, the connecting portion 52 of the baffle 5 is correspondingly provided with a slide block 521 capable of sliding along the slide slot 41. Two opposite clamping plates 6 are arranged in the sliding groove 41, and the clamping plates 6 can slide along the sliding groove 41 and can clamp two opposite side walls of the sliding block 521. In this embodiment, the clamping plate 6 is rectangular plate-shaped, the sliding block 521 is correspondingly configured to be rectangular block-shaped, and the area of the side surface of the sliding block 521 is larger than the area of the top and the bottom of the sliding block 521, so that the sliding block 521 and the clamping plate 6 have a sufficient contact area, which is beneficial to improving the clamping strength between the clamping plate 6 and the sliding block 521.

Referring to fig. 3 and 4, the clamping plates 6 are provided with an adjusting member for adjusting the distance between the two clamping plates 6, so that the two clamping plates 6 are clamped or separated from the slider 521. The adjusting member is located on a side near the open end of the slide groove 41. The adjusting element is in this example an adjusting screw 7 for driving the two clamping blocks towards or away from each other. The two ends of the adjusting screw rod 7 are rotatably connected to the bearing plate 4, the adjusting screw rod 7 is in threaded connection with the clamping plates 6, a horizontally arranged guide rod 73 is arranged in the sliding groove 41, and the two ends of the guide rod 73 respectively penetrate through the two clamping plates 6 and are fixed on the groove wall of the sliding groove 41. In the process that the staff drives the adjusting screw rod 7 to rotate, the guide rod 73 can limit the clamping plate 6 to rotate, and meanwhile, the clamping plate 6 can slide to play a guiding role, so that the clamping plate 6 can move more stably.

As shown in fig. 3 and 4, in order to save the occupied area of the adjusting screw rod 7, one end of the adjusting screw rod 7 penetrates through the bearing plate 4 and is rotatably connected to the groove wall of the chute 41, and the other end of the adjusting screw rod 7 is located outside the bearing plate 4 and is fixedly provided with a rotating block 71. The surface of the rotating block 71 is provided with a convex part 72 along the rotating direction of the rotating block 71, and the convex part 72 is arranged so that a worker can not slip in the process of driving the rotating block 71 to rotate.

In this embodiment, there is one adjusting screw rod 7, and the adjusting screw rod 7 has a first thread section and a second thread section with opposite screwing directions, and the two clamping plates 6 are respectively and correspondingly in thread fit with the first thread section and the second thread section. When the distance between the two clamping plates 6 needs to be adjusted, the two clamping plates 6 can be synchronously driven to be close to or far away from each other by a worker through rotating one adjusting screw rod 7, and the convenience for operation of the worker is improved.

Referring to fig. 3 and 5, the part of the frame 1 for mounting the bearing plate 4 is a mounting part 101, and an adjusting assembly is disposed between the mounting part 101 and the bearing plate 4, so that the bearing plate 4 can move up and down relative to the mounting part 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. 3 and 5, 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 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. 5, 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. At this time, the baffle 3 is fixed on the bearing plate 4 by the cooperation of the two clamping plates 6 and the adjusting screw 7.

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 drives the rotating block 71 to rotate, so that the adjusting screw rod 7 rotates, and the two clamping plates 6 are separated from the side face of the sliding block 521; next, the worker can move the baffle 5, so that a space enough for placing the paper board is formed between the baffle 5 and the bearing plate 4; finally, the worker drives the rotating block 71 to rotate, so that the two clamping plates 6 approach each other until the two clamping plates 6 clamp and fix the sliding block 521, so that the baffle 5 is fixed 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 circle-pressing circle 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 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 method is characterized in that: the loading board (4) is followed line ball roller (31) and die cutter roller (32) play paper direction has seted up spout (41), baffle (5) correspond be equipped with can follow slider (521) that spout (41) slided, be provided with two grip block (6) that set up relatively in spout (41), grip block (6) can be followed spout (41) slide, be equipped with on grip block (6) and be used for adjusting two the regulating part of interval between grip block (6), so that two grip block (6) centre gripping or break away from slider (521).

2. The rotary die cutting machine of claim 1, wherein: the adjusting piece is an adjusting screw rod (7) used for driving the two clamping plates (6) to approach or separate from each other.

3. The rotary die cutting machine of claim 2, wherein: the both ends of accommodate the lead screw (7) rotate connect in loading board (4), just accommodate the lead screw (7) with grip block (6) threaded connection, be provided with guide bar (73) that the level set up in spout (41), two are passed respectively at the both ends of guide bar (73) grip block (6) and are fixed in the cell wall of spout (41).

4. The rotary die cutting machine of claim 3, wherein: the adjusting screw rod (7) is provided with one, the adjusting screw rod (7) is provided with a first thread section and a second thread section which are opposite in screwing direction, and the two clamping plates (6) are correspondingly matched with the first thread section and the second thread section in a thread manner respectively.

5. The rotary die cutting machine of claim 4, wherein: and a rotating block (71) is fixedly arranged at one end of the adjusting screw rod (7) deviating from the two clamping plates (6).

6. The rotary die cutting machine of claim 5, wherein: a protruding portion (72) is arranged on the surface of the rotating block (71) along the rotating direction of the rotating block (71).

7. The rotary die cutting machine of 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).