CN218053013U

CN218053013U - Punching mechanism of die-cutting machine

Info

Publication number: CN218053013U
Application number: CN202220568438.XU
Authority: CN
Inventors: 刁海明; 李辉峰
Original assignee: Swire Zhengdao Deqing Packaging Technology Co ltd
Current assignee: Swire Zhengdao Deqing Packaging Technology Co ltd
Priority date: 2022-03-16
Filing date: 2022-03-16
Publication date: 2022-12-16
Anticipated expiration: 2032-03-16

Abstract

The utility model belongs to the technical field of the technique of cross cutting equipment and specifically relates to a mechanism of punching of cross cutting machine is related to, and it includes the organism, is equipped with along the horizontal direction in proper order along unreeling roller, lifter plate and wind-up roll on the organism, is equipped with drive wind-up roll pivoted motor on the organism, the lifter plate is located the organism top, and the lower surface mounting of lifter plate has the die cutting board, one side that the lifter plate deviates from the organism is equipped with synchronizing, and synchronizing's one end is close to the lifter plate, and synchronizing's the other end is close to unreeling the roller, synchronizing orientation unreels the one end of roller is equipped with the mount pad, be equipped with the processing pole that a plurality of is used for punching on the mount pad, be equipped with the paper supply on the organism and open the processing platform of placing, the processing platform is located the below of mount pad, processing bench has seted up the processing hole that a plurality of confession was worn to establish futilely, processing hole and processing pole one-to-one. This application can make things convenient for cross cutting processing.

Description

Punching mechanism of die-cutting machine

Technical Field

The application relates to the technical field of die cutting equipment, in particular to a punching mechanism of a die cutting machine.

Background

Die cutters are mechanical devices used for processing after paper packaging and printing. The die cutting machine is mainly used for die cutting of paperboards, corrugated boards, adhesive stickers, EVA, double-faced adhesive tapes, electronics, mobile phone rubber mats and the like.

In the correlation technique of cross cutting equipment, including the organism, have set gradually along the horizontal direction on the organism and unreel roller, lifter plate and wind-up roll, the axial of unreeling roller and wind-up roll all is the horizontality to perpendicular to the direction of arranging between them installs drive wind-up roll pivoted motor on the organism, and the lifter plate is located the top of organism, and the lifter plate removes along vertical direction on the organism, and the die cutting board is installed towards the one end of organism to the lifter plate.

When the paper needs to be die-cut, a worker starts the motor to enable the winding roller to rotate, the winding roller pulls the paper to leave from the unwinding roller and pass through the lower portion of the die cutting plate, and then the lifting piece is started to enable the die cutting plate to press and cut the paper, so that the die cutting work is completed.

However, the scale of the die-cutting plate is not easy to modify after being manufactured and molded, and partial paper needs to be punched first in the process of processing, so that punching is needed before die cutting, the whole processing step becomes more complicated, and the die cutting is inconvenient.

SUMMERY OF THE UTILITY MODEL

In order to facilitate die cutting processing, the application provides a punching mechanism of a die cutting machine.

The application provides a pair of punching mechanism of cross cutting machine adopts following technical scheme: the utility model provides a mechanism of punching of cross cutting machine, includes the organism, is equipped with along the horizontal direction in proper order along unreeling roller, lifter plate and wind-up roll on the organism, is equipped with drive wind-up roll pivoted motor on the organism, the lifter plate is located the organism top, and the lower surface mounting of lifter plate has the cross cutting board, one side that the lifter plate deviates from the organism is equipped with synchronizing, and synchronizing's one end is close to the lifter plate, and synchronizing's the other end is close to unreeling the roller, synchronizing is equipped with the mount pad towards the one end of unreeling the roller, be equipped with a plurality of processing pole that is used for punching on the mount pad, be equipped with the paper supply on the organism and open the processing platform of placing, the processing platform is located the below of mount pad, the processing bench is seted up a plurality of and is supplied the processing hole of processing futilely wearing to establish, processing hole and processing pole one-to-one.

Through adopting the above technical scheme, when processing the paper, the starter motor, the motor drives the wind-up roll rotatory, the paper on the wind-up roll pulling unreeling roll, remove to the processing bench earlier, stop the motor, start the lifter plate, the lifter plate descends and drives synchronous piece and mount pad decline, the mount pad drives on the processing pole presses the paper, insert the processing hole until the processing pole, make to form the hole on the paper, accomplish and punch, then continue starter motor, the pulling paper, when making the lifter plate processing paper, punch the paper in advance, reduce the setting of extra power supply, the processing step is difficult for complicating, and then make things convenient for cross cutting processing.

Optionally, the processing table is provided with two pressing rods for pressing the paper on the processing table, the axial directions of the pressing rods are parallel to the axial direction of the unwinding roller, and the processing rods are located between the two pressing rods.

Through adopting above-mentioned technical scheme, when wind-up roll pulling paper, the paper removes to the processing bench, and two this moment press the depression bar with it to press on the processing bench, and when the processing pole pressed the paper and inserted the processing hole, the stability of pressing the depression bar and keeping paper had improved the precision of punching, and it is to keep away from the processing bench when the processing pole simultaneously, presses the depression bar and presses the paper both sides for the paper remains stable.

Optionally, a guide rod is arranged on the processing table, and a guide hole for the guide rod to penetrate through in a sliding manner is formed in the mounting seat.

Through adopting above-mentioned technical scheme for when the lifter plate moved the mount pad and removed, the processing pole was difficult for taking place the skew with the processing hole, has improved the accuracy of processing.

Optionally, a plurality of balls are embedded in the side wall of the guide rod in a rolling manner, and the balls are abutted against the hole wall of the guide hole.

Through adopting above-mentioned technical scheme, when the lifter plate moved the mount pad and removed, the guiding hole was worn to locate in the guide bar slides, and the ball takes place to roll, has improved the gliding smoothness nature of mount pad on the guide bar.

Optionally, a spring used for pushing the mounting seat to be far away from the processing table is arranged on the processing table, one end of the spring is connected with the processing table, and the other end of the spring is connected with the mounting seat.

Through adopting above-mentioned technical scheme, the spring supports the mount pad, reduces the support of synchronizing part to the mount pad, makes synchronizing part not fragile bending, is difficult for influencing the removal of mount pad simultaneously.

Optionally, the machine body is provided with a receiving groove, and the receiving groove is communicated with the processing hole.

Through adopting above-mentioned technical scheme, press the paper when the processing pole, push the circular scraps of paper according to the extrusion on the paper in the processing hole, circular scraps of paper fall to accepting the groove through the processing hole this moment for the difficult jam in processing hole makes things convenient for the workman to retrieve the clearance circular scraps of paper simultaneously.

Optionally, the mount pad includes first mounting panel and second mounting panel, the processing pole is located on the second mounting panel, threaded connection has the construction bolt on the first mounting panel, construction bolt and second mounting panel threaded connection, be equipped with the installation screw rod on the first mounting panel, threaded connection has two mounting nuts that are used for centre gripping synchronous piece on the installation screw rod.

Through adopting above-mentioned technical scheme, made things convenient for the workman to twist and move the first mounting panel of two nut installations, simultaneously, the workman twists and moves mounting bolt to dismantle the change to the second mounting panel, make things convenient for the workman to change the machining pole.

Optionally, be equipped with adjusting screw on the organism, the processing bench is seted up and is supplied the adjusting groove that adjusting screw slided to wear to establish, the extending direction of adjusting groove is on a parallel with the direction of arranging of unreeling roller and wind-up roll, threaded connection has the adjusting nut who is used for supporting tight processing bench on the adjusting screw, set up the cooperation groove that supplies the installation screw to slide to wear to establish on the synchronizing piece, the extending direction of cooperation groove is the same with the extending direction of adjusting groove.

Through adopting above-mentioned technical scheme, when the position that punches is adjusted to needs, the workman rotates adjusting nut, make adjusting nut remove on adjusting screw, adjusting nut and processing platform separation, promote the processing platform, make adjusting screw slide in the adjustment tank, the installation screw removes in the cooperation inslot this moment, after the interval between processing platform and the lifter plate is confirmed, screw up adjusting nut, adjusting nut supports the processing platform tightly in the organism, thereby made things convenient for the workman to adjust the position of punching, and then made things convenient for the cross cutting processing.

To sum up, the application comprises the following beneficial technical effects:

1. through the arrangement of the machine body, the unwinding roller, the lifting plate, the winding roller, the motor, the die cutting plate, the synchronizing piece, the lifting plate, the mounting seat, the machining rod, the machining table and the machining hole, when the lifting plate is used for die cutting of paper, the paper before die cutting is punched in advance, the arrangement of an additional power source is reduced, the operation steps are simple, and die cutting machining is facilitated;

2. through the arrangement of the pressing rod, the stability of the paper is kept when the processing rod punches the paper;

3. through the arrangement of the guide rod and the guide hole, the machining rod is not easy to be separated from the machining hole in a staggered manner, and the machining accuracy is improved;

4. through the arrangement of the balls, the moving smoothness of the mounting seat is improved;

5. the mounting seat is supported through the arrangement of the spring, so that the synchronous piece is not easy to stress and bend, and the movement of the mounting seat is not easy to influence;

6. through the arrangement of the bearing groove, the machining hole is not easy to block, and meanwhile, workers can conveniently recover and clean the round paper sheets;

7. through the arrangement of the first mounting plate, the second mounting plate, the mounting bolts, the mounting screw rods and the mounting nuts, workers can conveniently replace the machining rods, and can conveniently adjust the punching sizes and the hole sequencing;

8. through adjusting screw, adjustment tank, adjusting nut and cooperation groove, make things convenient for the workman to adjust the interval of processing platform and lifter plate, made things convenient for the workman to adjust the position that punches, and then made things convenient for cross cutting processing.

Drawings

FIG. 1 is a schematic diagram of the overall structure in the embodiment of the present application;

FIG. 2 is a schematic structural view showing a machining table, a mounting base, a pressing rod, a spring, a guide rod and an adjusting screw in the embodiment of the present application;

fig. 3 is a schematic sectional structural view for showing a mounting bolt and a mounting threaded hole in the embodiment of the present application.

Reference numerals are as follows: 1. a body; 11. unwinding the roller; 12. a wind-up roll; 13. a motor; 14. a lifting plate; 2. positioning a screw rod; 21. a synchronizing member; 22. positioning a nut; 3. a mounting base; 31. a first mounting plate; 32. a second mounting plate; 33. processing a rod; 34. installing a screw rod; 35. mounting a nut; 36. a mating groove; 4. a processing table; 41. machining a hole; 42. a pressing lever; 5. installing a bolt; 51. installing a threaded hole; 6. adjusting the screw rod; 61. an adjustment groove; 62. adjusting the nut; 7. a guide rod; 71. a guide hole; 72. a ball bearing; 73. a spring; 8. a receiving groove.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses punching mechanism of a die-cutting machine.

As shown in fig. 1 and 2, a punching mechanism of a die-cutting machine comprises a machine body 1, wherein the machine body 1 extends along the horizontal direction, an unwinding roller 11 and a winding roller 12 are sequentially connected to the machine body 1 in a rotating manner along the length direction of the machine body, the axial direction of the unwinding roller 11 is parallel to the axial direction of the winding roller 12, a motor 13 is fixedly connected to the machine body 1, and the output shaft of the motor 13 is coaxially connected with the winding roller 12. The machine body 1 is connected with a lifting plate 14 in a sliding mode in the vertical direction, the lifting plate 14 is located between the unwinding roller 11 and the winding roller 12, and the lower end face of the lifting plate 14 is provided with a die cutting plate.

The last fixed surface of lifter plate 14 is connected with positioning screw 2, and positioning screw 2 is vertical setting, and the synchronous piece 21 that wears to be equipped with slides on positioning screw 2, and synchronous piece 21 extends along the horizontal direction in this embodiment, and the extending direction of synchronous piece 21 is on a parallel with the length direction of organism 1, and the one end that lifter plate 14 was kept away from to synchronous piece 21 is close to unreeling roller 11, and threaded connection has set nut 22 on positioning screw 2. When the synchronous piece 21 needs to be installed, the positioning nut 22 is rotated to make the synchronous piece 21 tightly abut against the lifting plate 14, and the installation of the synchronous piece 21 is completed.

The one end that synchronous piece 21 kept away from lifter plate 14 is installed mount pad 3, and the lower terminal surface of mount pad 3 is connected with a plurality of machining pole 33, installs processing platform 4 on the organism 1, and processing platform 4 is located the mount pad 3 under, and a plurality of processing hole 41 has been seted up to the upper surface of processing platform 4, and processing hole 41 and machining pole 33 one-to-one correspond.

When the paper needs to be die-cut, the motor 13 is started, the output shaft of the motor 13 drives the winding roller 12 to rotate around the axis of the winding roller, the paper is pulled to sequentially pass through the processing table 4 and the lifting plate 14 from the unwinding roller 11, the lifting plate 14 is started, and the lifting plate 14 drives the die-cutting plate to perform die-cutting on the paper.

When the lifting plate 14 moves towards the machine body 1, the lifting plate 14 drives the synchronizing piece 21 and the mounting seat 3 to move downwards, the mounting seat 3 drives the processing rod 33 to press paper, the processing rod 33 is inserted into the processing hole 41 in a sliding mode, therefore, holes are formed in the paper, and cut round paper enters the processing hole 41.

According to the actions, when the lifting plate 14 processes paper, the punching step of the paper is completed in advance, and the punching is performed without additionally increasing a power source, so that the die cutting processing is facilitated.

As shown in fig. 2 and fig. 3, the mounting seat 3 includes a first mounting plate 31 and a second mounting plate 32 which are sequentially arranged from top to bottom, the first mounting plate 31 and the second mounting plate 32 are both horizontally arranged, the processing rod 33 and the second mounting plate 32 are integrally formed, the upper surface of the first mounting plate 31 is in threaded connection with a plurality of mounting bolts 5, the lower ends of the mounting bolts 5 protrude from the lower surface of the first mounting plate 31, a plurality of mounting threaded holes 51 are formed in the upper surface of the second mounting plate 32, and the mounting threaded holes 51 correspond to the mounting bolts 5 one to one.

Organism 1's last fixedly connected with adjusting screw 6, adjusting screw 6 is vertical setting, and the upper surface of processing platform 4 is seted up and is run through in the adjustment tank 61 of processing platform 4 lower surface, and adjusting screw 6 slides and wears to locate adjustment tank 61, and adjustment tank 61 extends along organism 1's length direction, and threaded connection has adjusting nut 62 on adjusting screw 6.

When the machining rod 33 needs to be replaced, the mounting bolt 5 is rotated, the mounting bolt 5 is separated from the mounting threaded hole 51, the second mounting plate 32 is taken down, the second mounting plate 32 drives the machining rod 33 to be separated from the first mounting plate 31, the new second mounting plate 32 is attached to the lower surface of the first mounting plate 31, the mounting bolt 5 is rotated, the mounting bolt 5 is connected with the mounting threaded hole 51 in a threaded mode, replacement of the machining rod 33 is completed, and replacement of the machining rod 33 by workers is facilitated.

Meanwhile, when the diameter of the replaced processing rod 33 or the arrangement of the processing rod 33 changes, the worker rotates the adjusting nut 62, so that the adjusting nut 62 is separated from the adjusting screw rod 6, the processing table 4 is pulled, the processing table 4 is separated from the machine body 1, a new processing table 4 is placed on the machine body 1, the adjusting screw rod 6 penetrates through the adjusting groove 61, the adjusting nut 62 is rotated to enable the processing table 4 to be tightly abutted to the machine body 1, and therefore the processing rod 33 can conveniently correspond to different processing rods, and various punching requirements can be conveniently processed.

As shown in fig. 1 and 2, a mounting screw 34 is integrally formed on the upper surface of the first mounting plate 31, the mounting screw 34 is vertically disposed, mounting nuts 35 are threadedly connected to the mounting screw 34, and the two mounting nuts 35 respectively abut against the upper end and the lower end of the synchronizing member 21.

The synchronizing member 21 is provided with a matching groove 36, the matching groove 36 extends along the length direction of the machine body 1, and the mounting screw 34 is slidably inserted into the matching groove 36.

When it is necessary to adjust the punching position, the adjustment nut 62 is rotated so that the adjustment nut 62 moves on the adjustment screw 6 in the axial direction thereof until the adjustment nut 62 is separated from the processing table 4, and the worker pushes the processing table 4 so that the adjustment screw 6 slides in the adjustment groove 61.

Meanwhile, the first mounting base 3 and the mounting screw 34 are driven to move, the mounting screw 34 moves in the matching groove 36, the adjusting nut 62 is screwed up until the position of the processing table 4 is determined, and the adjusting nut 62 abuts against the upper surface of the processing table 4, so that the processing table 4 abuts against the machine body 1, the position for punching is conveniently adjusted by a worker, and die cutting processing is further facilitated.

The machining table 4 is fixedly connected with two pressing rods 42, the two pressing rods 42 are arranged along the length direction of the machine body 1, the axial direction of the pressing rods 42 is the same as the width direction of the machine body 1, and all the machining rods 33 are positioned between the two pressing rods 42.

When the paper passes over the processing table 4, the two pressing bars 42 abut against the upper surface of the paper and press the paper against the upper surface of the processing table 4.

Therefore, after the processing rod 33 is inserted into or separated from the processing hole 41, the processing rod 33 is not easy to drive the paper to generate large deformation, the stability of the paper is improved, and the accuracy of paper processing is further improved.

The upper surface of the processing table 4 is integrally formed with two guide rods 7, the guide rods 7 are vertically arranged, the first mounting plate 31 is provided with two guide holes 71, the guide rods 7 correspond to the guide holes 71 one by one, and the guide rods 7 penetrate through the guide holes 71 in a sliding manner.

When moving the processing table 4, the guide rod 7 drives the first mounting plate 31 to move, so that a worker can conveniently move the processing table 4 and the first mounting base 3.

Meanwhile, when the lifting plate 14 drives the first mounting plate 31 to move, the guide rod 7 penetrates through the guide hole 71 in a sliding manner, so that the processing rod 33 and the processing hole 41 are not prone to dislocation and separation, and the processing accuracy is improved.

Roll on the lateral wall of guide bar 7 and inlay and be equipped with a plurality of ball 72, the lateral wall of ball 72 contradicts in the pore wall of guiding hole 71, and when first mounting panel 31 removed, relative movement took place for guide bar 7 and first mounting panel 31, and guide bar 7 slides in guiding hole 71, and ball 72 contradicts and takes place to roll in the pore wall of guiding hole 71, changes hard friction into rolling friction, has improved the gliding smoothness nature of first mounting panel 31 on guide bar 7.

The upper surface of the processing table 4 is fixedly connected with two springs 73, the springs 73 correspond to the guide rods 7 one by one, the guide rods 7 are sleeved with the springs 73, the lower ends of the springs 73 are fixedly connected to the processing table 4, and the upper ends of the springs 73 are fixedly connected to the lower ends of the first mounting plates 31.

When the lifting plate 14 is far away from the machine body 1, the spring 73 pushes the first mounting plate 31, the second mounting plate 32 and the processing rod 33 to rise, so that the bearing capacity of the synchronizing member 21 far away from one end of the lifting plate 14 is reduced, the synchronizing member 21 is not easy to bend and damage, and the service life of the synchronizing member 21 is prolonged.

When the synchronizing member 21 pushes the first mounting plate 31 to move downward, the spring 73 is deformed, and the movement of the first mounting plate 31 is not easily affected.

Accept groove 8 has been seted up to organism 1's upper surface, accept groove 8 and extend along organism 1's length direction, accept groove 8 and communicate in processing hole 41, when the round scraps of paper of cutting department is pressed to machining rod 33, machining rod 33 promotes the round scraps of paper and removes in processing hole 41, break away from processing hole 41 and drop to accepting in the groove 8 until round scraps of paper, the volume of accomodating round scraps of paper has been improved, make its difficult use that influences processing hole 41, the workman of being convenient for simultaneously carries out recycle to scraps of paper.

The implementation principle of the punching mechanism of the die cutting machine in the embodiment of the application is as follows: when the paper needs to be punched, firstly, the motor 13 is started, the output shaft of the motor 13 drives the winding roller 12 to rotate around the axis of the winding roller, the paper is pulled to leave the unwinding roller 11 and move to the processing table 4, the paper penetrates through the pressing rod 42, the paper is enabled to abut against the upper surface of the processing table 4, and the motor 13 is turned off.

Then, the lifting plate 14 is started, the lifting plate 14 moves downwards, the lifting plate 14 drives the synchronizing piece 21 to move downwards, the synchronizing piece 21 pushes the mounting nut 35, the mounting screw 34 drives the first mounting rod, the second mounting plate 32 and the processing rod 33 to move downwards, the guide rod 7 slides in the guide hole 71, the ball 72 abuts against the hole wall of the guide hole 71 to roll, and the spring 73 deforms.

The processing rod 33 pushes part of the paper sheets to be inserted into the processing hole 41, holes are cut out, and the circular paper sheets drop into the receiving groove 8 through the processing hole 41.

Then, the lifting plate 14 is started, the lifting plate 14 moves upwards, the synchronous piece 21 pushes the mounting nut 35 again, the processing rod 33 is separated from the processing hole 41, the spring 73 returns to the natural state and pushes the first mounting plate 31 to ascend and support the first mounting plate, the processing rod 33 is separated from the paper sheet, the actions are repeated, and the punching is continuously completed.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a mechanism of punching of cross cutting machine, includes organism (1), is equipped with unwinding roller (11), lifter plate (14) and wind-up roll (12) along the horizontal direction in proper order on organism (1), is equipped with drive wind-up roll (12) pivoted motor (13) on organism (1), lifter plate (14) are located organism (1) top, and the lower surface mounting of lifter plate (14) has the cross cutting board, its characterized in that: one side that lifter plate (14) deviates from organism (1) is equipped with synchronizing member (21), and the one end of synchronizing member (21) is close to lifter plate (14), and the other end of synchronizing member (21) is close to unreels roller (11), synchronizing member (21) are equipped with mount pad (3) towards the one end of unreeling roller (11), be equipped with processing pole (33) that a plurality of is used for punching on mount pad (3), be equipped with on organism (1) and supply paper to open processing platform (4) of placing, processing platform (4) are located the below of mount pad (3), set up processing hole (41) that a plurality of confession processing was worn to establish futilely on processing platform (4), processing hole (41) and processing pole (33) one-to-one.

2. The hole punching mechanism of the die cutting machine according to claim 1, characterized in that: the processing table (4) is provided with two pressing rods (42) for pressing paper on the processing table (4), the axial direction of each pressing rod (42) is parallel to the axial direction of the unwinding roller (11), and the processing rods (33) are located between the two pressing rods (42).

3. The hole punching mechanism of the die cutting machine according to claim 1, characterized in that: the machining table (4) is provided with a guide rod (7), and the mounting base (3) is provided with a guide hole (71) for the guide rod (7) to penetrate in a sliding mode.

4. The hole punching mechanism of the die cutting machine according to claim 3, characterized in that: a plurality of balls (72) are embedded in the side wall of the guide rod (7) in a rolling mode, and the balls (72) are abutted to the hole wall of the guide hole (71).

5. The hole punching mechanism of the die cutting machine according to claim 1, characterized in that: the processing table (4) is provided with a spring (73) used for pushing the mounting seat (3) to be far away from the processing table (4), one end of the spring (73) is connected with the processing table (4), and the other end of the spring (73) is connected with the mounting seat (3).

6. The hole punching mechanism of the die cutting machine according to claim 1, characterized in that: the machine body (1) is provided with a bearing groove (8), and the bearing groove (8) is communicated with the processing hole (41).

7. The hole punching mechanism of the die cutting machine according to claim 1, characterized in that: mount pad (3) include first mounting panel (31) and second mounting panel (32), processing pole (33) are located on second mounting panel (32), threaded connection has construction bolt (5) on first mounting panel (31), construction bolt (5) and second mounting panel (32) threaded connection, be equipped with construction screw (34) on first mounting panel (31), threaded connection has two mounting nut (35) that are used for centre gripping synchronous piece (21) on construction screw (34).

8. The hole punching mechanism of the die cutting machine according to claim 7, characterized in that: be equipped with adjusting screw (6) on organism (1), set up on processing platform (4) and supply adjusting screw (6) to slide adjustment tank (61) of wearing to establish, the extending direction of adjustment tank (61) is on a parallel with the direction of arranging of unreeling roller (11) and wind-up roll (12), threaded connection has adjusting nut (62) that are used for supporting tight processing platform (4) on adjusting screw (6), set up cooperation groove (36) that supply mounting screw (34) to slide to wear to establish on synchronizing member (21), the extending direction of cooperation groove (36) is the same with the extending direction of adjustment tank (61).