CN113062108A

CN113062108A - Cloth cutting machine

Info

Publication number: CN113062108A
Application number: CN202110325347.3A
Authority: CN
Inventors: 胡海波; 黄娜; 杨地青
Original assignee: Shanghai Weixiang Industrial Co ltd
Current assignee: Shanghai Weixiang Industrial Co ltd
Priority date: 2021-03-26
Filing date: 2021-03-26
Publication date: 2021-07-02
Anticipated expiration: 2041-03-26
Also published as: CN113062108B

Abstract

The utility model relates to a cloth cutting machine, including workstation, guide board and cloth cutter, the guide board is installed on the workstation, and the cloth cutter slides along the guide board, installs spacing subassembly on the workstation, and spacing subassembly includes two vertical gag lever posts of installing on the workstation, and the upper end and the guide board of gag lever post are connected to can slide from top to bottom along vertical direction, the workstation on be provided with lifting unit, lifting unit includes lift pulley and lifting belt, the lift pulley is installed in the upper end department of gag lever post, two gag lever posts are first pole and second pole respectively, the one end fixed mounting of lift belt is in the lower extreme department of first pole, and lifting belt walks around from the lift pulley upside of first pole upper end and the lift pulley upside of second pole upper end in proper order to fixed connection is on the workstation. This application has and reduces because the atress is inhomogeneous, leads to the probability that the position blocked phenomenon appears in first pole, the effect of lifting up whole guide board that can be more laborsaving.

Description

Cloth cutting machine

Technical Field

The application relates to the field of cloth cutting equipment, in particular to a cloth cutting machine.

Background

The cloth cutting machine is mainly used for cutting a large number of small-sized samples or products, can be widely used for cutting cloth, leather, cotton textiles, hard paper and other similar materials, has two peripheral shapes of straight edges and laces, and is particularly widely applied in the field of clothing.

For example, chinese patent publication No. CN209412588U discloses a cloth cutting machine, which comprises a worktable, a cloth cutting knife, and a guide plate arranged on the worktable; the cloth cutting knife comprises a main knife rest, a motor and a cutting blade; the motor is fixedly connected to the main tool rest, and the cutting blade is arranged on the main tool rest and used for cutting cloth; the guide board is placed on the workstation, has seted up long banding guiding groove on the guide board, and the both ends of guide board and the both ends of guiding groove all are located the outside of workstation. The cloth cutter is placed on the guide plate; when the cloth cutter is placed on the guide plate, the main blade holder is brought into contact with the guide plate, and the cutting blade is inserted into the guide groove. The cloth cutting knife can be conveniently pushed by a worker, and the cloth cutting knife is not easy to deviate.

In view of the above-described related art, the inventor believes that in this structure, when the guide plate is lifted up, if the guide plate is lifted up from only one end, the other end of the guide plate is likely to be positionally locked, and it is not easy to lift up the entire guide plate.

Disclosure of Invention

In order to improve and only lift up the guide plate from one end, lead to the other end of guide plate easily to be blocked, the phenomenon that can not be convenient lifts up whole guide plate, this application provides a cloth cutting machine.

The application provides a cloth cutting machine adopts following technical scheme:

the utility model provides a cloth cutting machine, includes workstation, guide board and cloth cutter, and the guide board is installed on the workstation, and the cloth cutter slides along the guide board, installs spacing subassembly on the workstation, and spacing subassembly includes two vertical gag lever posts of installing on the workstation, and the upper end and the guide board of gag lever post are connected to can slide from top to bottom along vertical direction, the workstation on be provided with lifting unit, lifting unit includes lift pulley and lifting belt, the lift pulley is installed in the upper end department of gag lever post, two gag lever posts are first pole and second pole respectively, the one end fixed mounting of lift belt is in the lower extreme department of first pole, and lifting belt walks around from the lift pulley upside of first pole upper end and the lift pulley upside of second pole upper end in proper order to fixed connection is on the workstation.

Through adopting above-mentioned technical scheme, all install the lift pulley at the upper end department of first pole and second pole, because the lift belt of first pole department is fixed connection on first pole, and the lift belt of second pole department is fixed connection on the workstation, when the workman mentions the one end that the guide board connects the second pole, the second pole has been mentioned to the power of exerting this one end of guide board, thereby make the lift pulley of second pole upper end department rise, the length of the lift belt between the lift pulley of second pole upper end department and the first pole has been reduced, thereby make the lift belt tighten, and exert ascending pulling force to the first pole lower extreme department that the lift belt is connected, the first pole of pulling rises. The guide plate between first pole and the second pole is propped up by the lifting belt that is located to tighten between first pole and the second pole to when the guide plate rises, reduce because the atress is inhomogeneous, lead to the probability that the position blocked phenomenon appears in first pole, can lift up whole guide plate more laborsavingly.

Optionally, the workstation on be provided with the subassembly of lifting, the subassembly of lifting is including lifting the pole and lifting the axle, lifting axle level and fixed mounting are on the workstation, lifting the pole vertical and rotate and install on lifting the epaxial, lifting the pole both ends and lifting and all having the space at the interval between the axle, lifting the pole and lifting and being close to the one end between the axle for being close to the end, it is adjacent with the second pole position to lean on the near-end, the axle of lifting simultaneously is adjacent and is higher than the lower extreme of second pole with the second pole position, be connected with between the lower extreme near-end and second pole and lift the rope

Through adopting above-mentioned technical scheme, the pole of lifting can rotate along the axis of the axle of lifting because the distance between the pole both ends of lifting and the axle of lifting is unequal to make the pole of lifting form the lever-shaped structure, when people pressed the pole of lifting and kept away from the one end near the end, the rope was lifted in the pulling that can be easier, thereby lifted the second pole. Because lift and be connected through the lifting rope between pole and the second pole, at the in-process that the second pole goes up and down, the lower extreme of second pole is less than the axle of lifting all the time, consequently can make the lifting rope drive the second pole when rising, effort deviation top to can be more laborsaving rise the second pole.

Optionally, the lower end of the limiting rod is further connected with a connecting spring, the other end of the connecting spring is connected to the workbench, and one end, far away from the limiting rod, of the connecting spring is higher than the lower end of the limiting rod.

Through adopting above-mentioned technical scheme, coupling spring connects the lower extreme at the gag lever post, plays the cushioning effect to following pole, loosens the pole of lifting when people, when leading to guide board and gag lever post free fall, connects the coupling spring between workstation and gag lever post and can be pulled open, provides ascending power to the gag lever post, makes the guide board can be more gentle when contacting the workstation, is difficult for appearing pounding workman's phenomenon.

Optionally, the guide plate top surface on seted up the guiding groove, the guiding groove is rectangular shape and sets up along the guide board, the width of guiding groove bottom surface is greater than the opening width of guiding groove, fixed mounting has the guide block on the cloth cutter, the guide block is installed in the guiding groove and is slided along the guiding groove, the bullport has been seted up on the top surface of guide block, the cloth cutter is the annular saw, the blade lower extreme setting of annular saw is in the guiding hole.

Through adopting above-mentioned technical scheme, because the blade lower extreme setting of annular saw is in the guiding hole, when cutting, can be stable will lay cloth cutting on the guide plate top surface disconnected. The guide block slides along the guide groove, so that the cloth cutting knife keeps stable when moving along the guide plate.

Optionally, the end of the guide groove is provided with a buffer assembly, the buffer assembly comprises buffer blocks fixedly arranged in the guide groove, the two ends of the guide groove are respectively provided with one buffer block, and the side face of the buffer block close to the other end of the guide groove is provided with a buffer spring.

Through adopting above-mentioned technical scheme, when the guide block slides to the end department of guiding groove along the guiding groove, the guide block can extrude buffer spring to slow down speed. It can make the guide block difficult direct impact to the buffer block, and the workman of being convenient for is pinned and is fixed the cloth cutter. When people push the cloth cutting knife, the phenomenon that the position of the cloth cutting knife is staggered due to collision deformation of the cloth cutting knife is not easy to occur due to the fact that the cloth cutting knife directly collides with the buffer block.

Optionally, the workbench is provided with a supporting assembly, the supporting assembly comprises a supporting plate and supporting wheels, the two sides of the workbench are respectively provided with one supporting plate, the supporting plate is adjacent to the limiting rod in position, the supporting wheels are rotatably installed on the supporting plate, the rotating axes of the supporting wheels are parallel to the guide grooves, the supporting wheels are provided with two groups, the two sides of the limiting rod are respectively provided with one group, each group of supporting wheels comprises at least two supporting wheels, and the supporting wheels are all attached to the limiting rod.

Through adopting above-mentioned technical scheme, all be provided with a set of supporting wheel through the both sides at the gag lever post to fix the position of gag lever post. The axis of rotation of supporting wheel is parallel with the guiding groove to make the gag lever post at the in-process that reciprocates along the axis, stable reciprocate along the spacing groove, and then more gentle when making the guide board rise and descend.

Optionally, the lateral wall of supporting wheel on circumference seted up annular spacing groove, the second pole is worn to establish between two sets of supporting wheels to inlay and establish at the spacing inslot, the dwang sets up the upside at the supporting wheel.

Through adopting above-mentioned technical scheme, the second pole is installed between two sets of supporting wheels to make partial second pole wear to establish at the spacing inslot, can carry out stable spacing to the second pole, be difficult for appearing the phenomenon that the second pole position shifts out between two sets of supporting wheels.

Optionally, the second rod is divided into a fixed rod and a rotating rod, the fixed rod is vertically installed between the two sets of supporting wheels, the rotating rod is hinged at the upper end of the fixed rod and is higher than the supporting wheels, the rotating rod can rotate towards one side far away from the first rod, the upper end of the rotating rod is fixedly connected with the guide plate, an ejection wedge block is fixedly arranged on the supporting plate, and the ejection wedge block is positioned at one side of the rotating rod close to the first rod; the side of the ejection wedge block close to the second rod is an inclined surface, the upper end of the inclined surface inclines towards one side far away from the first rod, an ejection groove is formed in the side of the rotating rod adjacent to the ejection wedge block, the side of the ejection groove far away from the opening is an inclined surface, the lower end of the inclined surface is adjacent to the opening of the ejection groove, and the ejection wedge block is embedded in the ejection groove and attached to the bottom surface of the ejection groove.

By adopting the technical scheme, when the fixed rod descends to the position with the lowest height, the ejection wedge block is embedded in the ejection groove, and the top surface of the ejection wedge block is attached to the top surface of the inner side of the ejection groove, so that the fixed rod is clamped and cannot move downwards. In the process of raising the fixed rod, the bottom surface laminating of ejecting wedge and ejecting groove to can promote the dwang, guide board and first pole rotate a little angle towards the one side that is close to the second pole, can promote the second pole when raising, be difficult for appearing because second pole focus is between first pole and second pole, lead to the dwang, guide board and first pole towards keeping away from the one side slope of second pole, and then make the phenomenon that blocks that first pole and spacing inslot lateral wall closely laminate and lead to.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the probability of the position clamping phenomenon of the first rod caused by uneven stress is reduced, and the whole guide plate can be lifted in a labor-saving manner;

2. the guide plate is more gently lifted and lowered.

Drawings

Fig. 1 is a schematic structural diagram of the present embodiment.

Fig. 2 is a schematic structural diagram after the workbench is hidden.

Fig. 3 is a schematic view of the installation of the cutting burr and bumper assembly.

Fig. 4 is an enlarged view of a portion a in fig. 1.

Fig. 5 is a schematic structural view of the ejector wedge block and the ejector groove.

Description of reference numerals: 1. a work table; 11. a guide plate; 12. a cloth cutter; 13. a guide groove; 14. a guide block; 15. a guide hole; 2. a buffer assembly; 21. a buffer block; 22. a buffer spring; 3. a support assembly; 31. a support plate; 32. a support wheel; 33. a limiting groove; 4. a limiting component; 41. a limiting rod; 411. a first lever; 412. a second lever; 5. a lifting assembly; 51. a lifting pulley; 52. a lifting belt; 6. a lifting assembly; 61. a lifting rod; 62. a lifting shaft; 63. a lifting rope; 64. a connecting spring; 7. fixing the rod; 71. rotating the rod; 72. ejecting a wedge block; 73. ejecting the slot.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses a cloth cutting machine. Referring to fig. 1 and 2, the cloth cutting machine includes a table 1. The top surface of the working table 1 is provided with a guide plate 11 and a cloth cutter 12. The worktable 1 is also provided with a buffer component 2, a supporting component 3, a limiting component 4, a lifting component 5 and a lifting component 6.

Referring to fig. 1 and 3, guide board 11 is rectangular shape and level and places on the top surface of workstation 1, and the both ends of guide board 11 all are located the workstation 1 outside, have seted up long banding guide groove 13 on the top surface of guide board 11, and guide groove 13 sets up along guide board 11, and the both ends of guide groove 13 also all are located the outside of workstation 1. The cross section of the guide groove 13 is T-shaped, and the width of the bottom surface of the guide groove 13 is larger than the width of the opening of the guide groove 13. A guide block 14 is installed in the guide groove 13, the guide block 14 slides along the guide groove 13, and the cloth cutter 12 is located on the upper side of the guide plate 11 and is fixedly connected to the guide block 14. The cloth cutter 12 is a circular saw, and a guide block 14 is provided with an elongated guide hole 15, and the blade of the cloth cutter 12 is inserted through the guide groove 13 so that the lower end of the blade is positioned inside the guide hole 15. When cutting, the blade disposed in the guide hole 15 can stably cut off the cloth laid on the top surface of the guide plate 11. And the guide block 14 slides along the guide groove 13 to keep the cloth cutter 12 stable while moving along the guide plate 11.

Referring to fig. 1 and 3, the buffer assembly 2 includes a buffer block 21 and a buffer spring 22, wherein one buffer block 21 is fixedly mounted at the end of the guide groove 13, and the buffer spring 22 is fixedly mounted on the side surface of the buffer block 21 close to the other buffer block 21. When the guide shoe 14 slides along the guide groove 13 to the end of the guide groove 13, the guide shoe 14 can press the buffer spring 22 and slow down. It can make the guide block 14 difficult to directly collide against the buffer block 21, and it is convenient for a worker to hold and fix the cloth cutter 12. The phenomenon that the cloth cutting knife 12 is displaced due to the collision deformation of the cloth cutting knife 12 caused by the direct collision of the cloth cutting knife 12 to the buffer block 21 is not easy to occur.

Referring to fig. 2 and 4, the supporting assembly 3 includes a supporting plate 31 and a supporting wheel 32, the supporting plate 31 is provided with two blocks and is vertically and fixedly installed on the bottom surface of the worktable 1, the supporting plates 31 are respectively located at two sides of the worktable 1 and adjacent to the end positions of the guide plates 11, and the supporting plate 31 is perpendicular to the guide plates 11. The support wheel 32 is rotatably mounted on a side of the two support plates 31 remote from each other. Four support wheels 32 are mounted on one support plate 31, and the rotation axis of the support wheel 32 is perpendicular to the support plate 31. The four support wheels 32 are distributed in a rectangular array, the two support wheels 32 on the left side are grouped together, and the two support wheels 32 on the right side are grouped together. An annular limiting groove 33 is formed on the outer side surface of the supporting wheel 32. The limiting component 4 comprises a limiting rod 41, and one limiting rod 41 is vertically arranged on the bottom surfaces of the two ends of the guide plate 11. The limiting rod 41 is adjacent to the support plate 31 and penetrates between the two sets of support wheels 32. The limiting rod 41 is arranged in the limiting groove 33 in a penetrating mode and is tightly attached to the supporting wheel 32. The supporting wheel 32 can fix the position of the limiting rod 41, so that the limiting rod 41 can stably move up and down along the limiting groove 33 in the process of moving up and down along the axis, and the guide plate 11 can be more smoothly lifted and lowered.

Referring to fig. 2 and 5, the lifting assembly 5 includes a lifting pulley 51 and a lifting belt 52, the lifting pulley 51 is fixedly installed at the upper end of the stopper rod 41, and the lifting pulley 51 is disposed on the side where the two stopper rods 41 are close to each other. The stop lever 41 is a first lever 411 and a second lever 412, respectively, and one end of the lifting belt 52 is fixedly connected to the lower end of the first lever 411, then goes around from the upper side of the lifting pulley 51 at the upper end of the second lever 412 along the bottom surface of the guide plate 11, and finally goes down and is fixedly connected to the support plate 31.

Referring to fig. 4 and 5, the lifting assembly 6 includes a lifting rod 61 and a lifting shaft 62, the lifting shaft 62 is perpendicular to the support plate 31 and is fixedly mounted on the support plate 31, and the lifting shaft 62 is adjacent to the second rod 412 and is always higher than the lower end of the second rod 412. The lifting rod 61 is vertically and rotatably installed on the lifting shaft 62, the distance between the two ends of the lifting rod 61 and the lifting shaft 62 is unequal, and the end of the lifting rod 61 close to the lifting shaft 62 is a close end. The proximal end is positioned adjacent to the secondary rod 412 and a lifting cord 63 is connected between the proximal end and the lower end of the secondary rod 412. A connection spring 64 is connected at the lower end of the second lever 412, and the other end of the connection spring 64 is fixedly connected to the table 1 higher than the lower end of the second lever 412. When people loosen the lifting rod 61, the guide plate 11 and the limiting rod 41 can fall freely, the connecting spring 64 connected between the workbench 1 and the limiting rod 41 can be pulled open to provide upward force for the limiting rod 41, so that the guide plate 11 can fall to a position adjacent to the workbench 1 more smoothly, and workers are not easily injured by smashing.

Referring to fig. 4 and 5, the second lever 412 is divided into a fixing lever 7 and a rotating lever 71, the fixing lever 7 is penetrated between the two sets of support wheels 32, and the rotating lever 71 is hinged at the upper end of the fixing lever 7 and is higher than the support wheels 32. The rotation axis of the rotation lever 71 is perpendicular to the plane on which the axis of the first lever 411 and the axis of the fixing lever 7 are located. An ejector wedge block 72 is integrally formed on the support plate 31 adjacent to the second rod 412, and the ejector wedge block 72 is located on a side of the support plate 31 close to the second rod 412. The side of the ejector wedge 72 remote from the support plate 31 is a slope, and the lower end of the slope is inclined toward the side close to the support plate 31. An ejection groove 73 is formed in the side surface of the rotating rod 71 adjacent to the ejection wedge block 72, the side surface of the ejection groove 73 away from the opening is an inclined surface, the inclined surface of the ejection groove 73 is parallel to the inclined surface of the ejection wedge block 72, the ejection wedge block 72 is embedded in the ejection groove 73, and the two inclined surfaces of the ejection wedge block 72 and the ejection groove 73 are attached to each other. When the guide plate 11 moves to the lowest position, the top surface of the ejecting wedge block 72 is attached to the top surface of the inner side of the ejecting groove 73, and a gap is formed between the bottom surface of the guide plate 11 and the top surface of the table 1. In the process of lifting the fixing rod 7, the ejecting wedge block 72 is attached to the bottom surface of the ejecting groove 73, so that the rotating rod 71, the guide plate 11 and the first rod 411 can be pushed to rotate by a slight angle towards one side close to the second rod 412, when the second rod 412 is pushed to lift, the phenomenon that the rotating rod 71, the guide plate 11 and the first rod 411 incline towards one side far away from the second rod 412 because the gravity center of the second rod 412 is located between the first rod 411 and the second rod 412 is not easy to occur, and the phenomenon that the first rod 411 is tightly attached to the inner side wall of the limiting groove 33 to cause clamping is avoided.

The cloth cutting machine in the embodiment of the application has the implementation principle that: when the worker needs to lift the guide plate 11, the lifting rope 63 connected to the near end is pulled up and the secondary lever 412 connected to the lifting rope 63 is lifted up by pressing the end of the lifting lever 61 away from the near end. The second rod 412 raises the lifting pulley 51 at the upper end of the second rod 412 during the raising, reduces the length of the lifting belt 52 between the lifting pulley 51 at the upper end of the second rod 412 and the first rod 411, thereby tightening the lifting belt 52 and applying an upward pulling force to the lower end of the first rod 411 to which the lifting belt 52 is connected, pulling the first rod 411 to be raised. The guide plate 11 between the first rod 411 and the second rod 412 is supported by the tight lifting belt 52 between the first rod 411 and the second rod 412, so that when the guide plate 11 is lifted, the probability of position clamping of the first rod 411 caused by uneven stress is reduced, and the whole guide plate 11 can be lifted in a labor-saving manner.

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 cloth cutting machine, including workstation (1), guide board (11) and cloth cutter (12), install on workstation (1) guide board (11), cloth cutter (12) slide along guide board (11), install spacing subassembly (4) on workstation (1), spacing subassembly (4) include two vertical gag lever post (41) of installing on workstation (1), the upper end and the guide board (11) of gag lever post (41) are connected to can slide its characterized in that from top to bottom along vertical direction: workstation (1) on be provided with lifting unit (5), lifting unit (5) are including lift pulley (51) and lifting belt (52), upper end department at gag lever post (41) is installed in lift pulley (51), two gag lever posts (41) are first pole (411) and second pole (412) respectively, the one end fixed mounting of lifting belt (52) is in the lower extreme department of first pole (411), and lifting belt (52) are walked around from lift pulley (51) upside and the lift pulley (51) upside of second pole (412) upper end of first pole (411) upper end in proper order to fixed connection is on workstation (1).

2. A cloth cutting machine according to claim 1, characterized in that: workstation (1) on be provided with lifting assembly (6), lifting assembly (6) is including lifting rod (61) and lift axle (62), lift axle (62) level and fixed mounting are on workstation (1), lifting rod (61) is perpendicular and rotate and install on lifting axle (62), it has the space to lift equal interval between pole (61) both ends and the lift axle (62), the one end of distance between lifting rod (61) and the lift axle (62) is for being close to the end, it is adjacent with second pole (412) position to be close to the near-end, it is adjacent and higher than the lower extreme of second pole (412) to lift axle (62) and second pole (412) position simultaneously, be connected with between the lower extreme of closing-end and second pole (412) and lift rope (63).

3. A cloth cutting machine according to claim 2, characterized in that: the lower end of the limiting rod (41) is further connected with a connecting spring (64), the other end of the connecting spring (64) is connected to the workbench (1), and one end, away from the limiting rod (41), of the connecting spring (64) is higher than the lower end of the limiting rod (41).

4. A cloth cutting machine according to claim 1, characterized in that: guide board (11) top surface on seted up guide groove (13), guide groove (13) are rectangular shape and set up along guide board (11), the width of guide groove (13) bottom surface is greater than the opening width of guide groove (13), fixed mounting has guide block (14) on cloth cutter (12), guide block (14) are installed in guide groove (13) and are slided along guide groove (13), bullport (15) have been seted up on the top surface of guide block (14), cloth cutter (12) are the annular saw, the blade lower extreme of annular saw sets up in bullport (15).

5. A cloth cutting machine according to claim 4, characterized in that: the end department of guiding groove (13) install buffer unit (2), buffer unit (2) are including fixed buffer block (21) that set up in guiding groove (13), buffer block (21) respectively are provided with one at the both ends department of guiding groove (13), be provided with buffer spring (22) on buffer block (21) the side that is close to the guiding groove (13) other end.

6. A cloth cutting machine according to claim 2, characterized in that: workstation (1) on be provided with supporting component (3), supporting component (3) are including backup pad (31) and supporting wheel (32), backup pad (31) respectively is provided with one in the both sides of workstation (1), backup pad (31) are adjacent with gag lever post (41) position, supporting wheel (32) rotate and install on backup pad (31), the axis of rotation of supporting wheel (32) is parallel with guiding groove (13), supporting wheel (32) are provided with two sets ofly, and respectively be provided with a set ofly in gag lever post (41) both sides, every supporting wheel of group (32) all includes two at least supporting wheels (32), and supporting wheel (32) all laminate with gag lever post (41).

7. A cloth cutting machine according to claim 6, characterized in that: annular spacing groove (33) have been seted up to the lateral wall of supporting wheel (32) on circumference, second pole (412) wear to establish between two sets of supporting wheels (32) to inlay and establish in spacing groove (33), dwang (71) set up the upside at supporting wheel (32).

8. A cloth cutting machine according to claim 7, characterized in that: the second rod (412) is divided into a fixed rod (7) and a rotating rod (71), the fixed rod (7) is vertically installed between the two groups of supporting wheels (32), the rotating rod (71) is hinged at the upper end of the fixed rod (7) and is higher than the supporting wheels (32), the rotating rod (71) can rotate towards one side far away from the first rod (411), the upper end of the rotating rod (71) is fixedly connected with the guide plate (11), an ejection wedge block (72) is fixedly arranged on the supporting plate (31), and the ejection wedge block (72) is located on one side, close to the first rod (411), of the rotating rod (71); the side face, close to the second rod (412), of the ejection wedge block (72) is an inclined face, the upper end of the inclined face inclines towards one side far away from the first rod (411), an ejection groove (73) is formed in the side face, adjacent to the ejection wedge block (72), of the rotating rod (71), the side face, far away from the opening, of the ejection groove (73) is an inclined face, the lower end of the inclined face is adjacent to the opening position of the ejection groove (73), and the ejection wedge block (72) is embedded in the ejection groove (73) and attached to the bottom face of the ejection groove (73).