CN212147546U

CN212147546U - Shell material feeder

Info

Publication number: CN212147546U
Application number: CN202020507047.8U
Authority: CN
Inventors: 黄水荣
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-09
Filing date: 2020-04-09
Publication date: 2020-12-15
Anticipated expiration: 2030-04-09

Abstract

The utility model discloses a shell material feeder, which comprises a frame, the material rack is rolled up, the stripper plate, wait to send the platform, stripper plate translation drive arrangement, the pay-off drive roller, pay-off drive arrangement, press from both sides material rod and waste material rolling axle, it installs in the frame to roll up the material rack, but the stripper plate is installed at the frame top with translation and is connected with stripper plate translation drive arrangement transmission, it installs at the frame top to wait to send the platform, the stripper plate with wait to send to be provided with between the platform and shell the material mouth, the stripper plate is close to the one end terminal surface of waiting to send the platform and is down to keeping away from by last and wait to send platform direction slope formation inclined plane, pay-off drive roller and press from both sides the material rod and all install in the frame through the material roller mounting bracket, pay-off drive. The utility model discloses a stripper plate can shell the material to the material area of shelling the material end through it, makes the diaphragm with shift to waiting to send the platform after separating from type paper, has realized automatic shell the material operation, has improved production efficiency.

Description

Shell material feeder

Technical Field

The utility model relates to a technical field of pad pasting equipment, more specifically say, relate to a shell material feeder.

Background

With the continuous development and popularization of smart phones, the smart phones become indispensable electronic devices in daily life. In traditional cell-phone production line, the cell-phone shell pad pasting is mainly gone on through the manual work, and the diaphragm that the material was rolled up the material in the manual work is earlier peeled out, then the manual work pastes the cell-phone shell with the diaphragm again. However, manual film pasting is time-consuming, the working efficiency is low, errors are very easy to occur during film pasting, the production quality is difficult to guarantee, the labor cost is high, and the production is not facilitated, so that an automatic film pasting machine capable of automatically peeling and feeding materials and pasting films on workpieces is needed to be invented, and the peeling feeder is one of key mechanisms of the automatic film pasting machine.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the above-mentioned defect among the prior art, provide a shell material feeder.

In order to achieve the purpose, the utility model provides a stripping feeder, which comprises a frame, a material roll placing frame for placing a material roll, a stripping plate, a platform to be fed, a stripping plate translation driving device for driving the stripping plate to translate relative to the platform to be fed, a feeding driving roller, a feeding driving device, a clamping roller and a waste material rolling shaft, wherein the feeding driving roller, the feeding driving device and the clamping roller are matched with the clamping roller to drive feeding, the waste material rolling shaft is used for rolling up the stripped material belt, the material roll placing frame is arranged on the frame, the stripping plate is arranged on a fixed platform of the frame in a translation way through a slide rail assembly and is positioned at the top of the frame, the stripping plate translation driving device is arranged on the fixed platform and is in transmission connection with the stripping plate, the platform to be fed is arranged at the top of the frame and is positioned at the side edge of the stripping plate, a stripping opening through, the one end terminal surface that the stripper plate is close to and waits to send the platform forms the inclined plane to keeping away from the direction slope of waiting to send the platform from top to bottom, pay-off drive roller and clamp material rod are all installed in the frame through material roller mounting bracket, pay-off drive roller and clamp material rod all rotate with material roller mounting bracket and are connected, the pay-off drive roller is located and shells the material mouth below, it is located pay-off drive roller below to press from both sides the material rod, the lateral wall of pay-off drive roller is pressed close to the lateral wall that presss from both sides the material rod, waste material rolling axle is rotationally installed in the frame, pay-off drive arrangement installs in the frame and is connected in order to drive pay-off drive roller and waste.

As the preferred embodiment, pay-off drive arrangement includes first driving motor, first pivot, first transmission assembly and second transmission assembly, first driving motor fixes in the frame through the installation pole, the one end of first pivot is connected with first driving motor's output shaft through the shaft coupling, the other end of first pivot is worn out behind the curb plate of frame and is connected with the transmission of pay-off drive roller through first transmission assembly, the waste material rolling axle is connected with first pivot transmission through second transmission assembly.

In a preferred embodiment, the first transmission assembly includes a first pulley, a second pulley and a first synchronous belt, the first pulley is mounted on the first rotating shaft, the second pulley is mounted on the feeding driving roller, and the first pulley is synchronously connected with the second pulley through the first synchronous belt.

As a preferred embodiment, be provided with the tensioning adjusting device who is used for adjusting the rate of tension of first synchronous belt between first band pulley and the second band pulley, tensioning adjusting device is including the stopper screw and bearing, the stopper screw is installed in the hole site of seting up on the curb plate of frame, bearing dress cover is on the stopper screw and is contacted with first synchronous belt, the stopper screw can move in the hole site in order to adjust the position.

As a preferred embodiment, the second transmission assembly includes a third pulley, a fourth pulley and a second synchronous belt, the third pulley is mounted on the first rotating shaft, the fourth pulley is mounted on the waste winding shaft, and the third pulley is synchronously connected with the fourth pulley through the second synchronous belt.

As a preferred embodiment, the stripper plate translation driving device includes a second driving motor, a fifth belt pulley, a sixth belt pulley and a third synchronous belt, the second driving motor is longitudinally fixed on a fixed platform of the frame, the sixth belt pulley is rotatably mounted on the fixed platform through a wheel shaft, the fifth belt pulley is mounted on an output shaft of the second driving motor and is synchronously connected with the sixth belt pulley through the third synchronous belt, and the stripper plate is fixedly connected with one section of belt body of the third synchronous belt through a synchronous belt locking block arranged at the bottom.

As a preferred embodiment, the material roll placing frame comprises a mounting arm, a second rotating shaft and two limiting baffles, the lower end of the mounting arm is fixed on the frame, one end of the second rotating shaft is mounted at the upper end of the mounting arm, and the two limiting baffles are respectively arranged on the second rotating shaft at intervals.

As preferred embodiment, still be provided with the pressure material guider who is used for pressing the material direction between material book rack and the stripper plate, press material guider to include first deflector roll, second deflector roll, press material cylinder, briquetting mount pad, three briquetting and press the seat, press the material cylinder to install on the installation arm through pressing material cylinder mount pad, the briquetting is connected with the output shaft of pressing the material cylinder through the briquetting mount pad, and three briquetting separate the interval fix in the bottom of briquetting mount pad, press the seat to fix on the installation arm and be located the briquetting below, first deflector roll and second deflector roll are all rotationally installed on the installation arm, first deflector roll is located one side of pressing the seat, the second deflector roll is located the opposite side of pressing the seat.

As preferred embodiment, the waste material rolling axle includes that third pivot and hook type press from both sides the material strip, the one end of third pivot is rotationally installed on the curb plate of frame, the one end that the material strip was pressed from both sides to the hook type is fixed on the terminal surface of third pivot, the other end that the material strip was pressed from both sides to the hook type extends and is pressed close to the lateral wall of third pivot along the axis direction of third pivot.

As the preferred embodiment, be provided with the third deflector roll that is used for the direction of material area between material stripping mouth and the pay-off drive roller, the third deflector roll rotationally installs in the frame, the top interval of material stripping board is provided with two limiting plates, is provided with the material way that supplies the material area to pass through between two limiting plates, and the edge in material area can be pushed down to one of them limiting plate.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model has the advantages of simple structure, reasonable in design, the stripper plate can shell the material through its material area of shelling the material end, makes the diaphragm with shift to after separating from type paper to waiting to send the platform on, has realized automatic material operation of shelling, has reduced the personnel selection cost when having improved production efficiency, is favorable to production.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a first schematic structural diagram of a stripping feeder according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a stripping feeder according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram three of a stripping feeder according to an embodiment of the present invention;

fig. 4 is an enlarged view of a material pressing guide portion of a stripping feeder according to an embodiment of the present invention;

fig. 5 is an enlarged view of a translation driving device of a stripper plate of a stripper feeder according to an embodiment of the present invention;

fig. 6 is an enlarged view of a stripping portion of a stripping feeder according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a stripping plate of a stripping feeder according to an embodiment of the present invention;

fig. 8 is a schematic structural view of a waste material winding shaft of a stripping feeder according to an embodiment of the present invention;

fig. 9 is an operation schematic diagram of a stripping feeder according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1 to 9, an embodiment of the present invention provides a stripping feeder, which includes a frame 601, a material roll rack 602 for placing a material roll, a stripping plate 604, a platform 606 to be fed, a stripping plate translation driving device 605 for driving the stripping plate 604 to translate relative to the platform 606 to be fed, a feeding driving roller 608 for driving feeding in cooperation with a material clamping roller 609, a feeding driving device 611, a material clamping roller 609, and a waste material rolling shaft 612 for rolling up the stripped material roll, and the structure and the operation principle of each component will be described below.

The material roll placing frame 602 is installed on a rack 601, a stripping plate 604 is installed on a fixed platform 6011 of the rack 601 through a sliding rail slider assembly 618 in a translation mode and located at the top of the rack 601, a stripping plate translation driving device 605 is installed on the fixed platform 6011 and is in transmission connection with the stripping plate 604, a to-be-sent platform 606 is installed at the top of the rack 601 and located on the side edge of the stripping plate 604, a stripping opening 614 for a material strip to be downwards inclined and bent to pass through is formed between the stripping plate 604 and the to-be-sent platform 606, and one end face, close to the to-be-sent platform 606, of the stripping plate 604 is inclined from top to bottom in the direction far. The top of the stripper plate 604 may be provided with two limiting plates 616 at intervals, a material channel 617 for the material belt to pass through is provided between the two limiting plates 616, and one of the limiting plates 616 may press the edge of the material belt, so that the material belt more smoothly enters the stripping end of the stripper plate 604.

Preferably, the roll holder 602 may include a mounting arm 613, a second rotating shaft 6021 and two limit baffles 6023, wherein the lower end of the mounting arm 613 is fixed on the frame 601, one end of the second rotating shaft 6021 is mounted on the upper end of the mounting arm 613, and the two limit baffles 6023 are respectively and alternately arranged on the second rotating shaft 6021.

In specific implementation, a swaging guide device 603 for swaging guide may be disposed between the material roll holder 602 and the stripper plate 604, the swaging guide device 603 includes a first guide roller 6031, a second guide roller 6032, a swaging cylinder 6033, a swaging mount 6035, three pieces of swaging blocks 6034 and a swaging seat 6036, the swaging cylinder 6033 is mounted on the mounting arm 613 through the swaging cylinder mount 6037, the swaging block 6034 is connected to an output shaft of the swaging cylinder 6033 through the swaging mount 6035, the three pieces of swaging blocks 6034 are respectively fixed at intervals at the bottom of the swaging mount 6035, the swaging seat 6036 is fixed on the mounting arm 613 and located below the swaging block 6034, the first guide roller 6031 and the second guide roller 6032 are both rotatably mounted on the mounting arm 613, the first guide roller 6031 is located on one side of the swaging seat 6036, and the second guide roller 6032 is located on the other side of the swaging seat 6036.

Preferably, the stripper plate translation driving device 605 may include a second driving motor 6051, a fifth pulley 6053, a sixth pulley 6054 and a third synchronous belt 6052, the second driving motor 6051 is longitudinally fixed on the fixed platform 6011 of the frame 601, the sixth pulley 6054 is rotatably mounted on the fixed platform 6011 through a wheel axle, the fifth pulley 6053 is mounted on an output shaft of the second driving motor 6051 and is synchronously connected with the sixth pulley 6054 through the third synchronous belt 6052, and the stripper plate 604 is fixedly connected with one section of belt body of the third synchronous belt 6052 through a synchronous belt locking block 6041 arranged at the bottom. When the stripper plate feeding and discharging device is used for feeding and discharging materials in the stripper plate feeder, the stripper plate translation driving device 605 can drive the stripper plate 604 to translate in the direction away from the to-be-fed platform 606 so as to increase the distance between the stripper plate 604 and the to-be-fed platform 606, so that a worker can conveniently pass a new material belt through the stripper port 614 between the stripper plate 604 and the to-be-fed platform 606, and the feeding and discharging operations of the worker are facilitated.

As shown in fig. 2, a tensioning adjustment device for adjusting the tension of the first synchronous belt 6119 may be disposed between the first belt pulley 6116 and the second belt pulley 6117, the tensioning adjustment device includes a tucking screw 6191 and a bearing 6192, the tucking screw 6191 is installed in a hole 6012 formed on a side plate of the frame 601, the bearing 6192 is sleeved on the tucking screw 6191 and contacts with the first synchronous belt 6119, and the tucking screw 6191 is able to move in the hole 6012 to adjust the position. During operation, a worker can move the plugging screw 6191 according to actual needs, so as to adjust the tension of the first synchronous belt 6119.

The feeding driving roller 608 and the material clamping roller 609 are both mounted on the machine frame 601 through a material roller mounting frame 610, the feeding driving roller 608 and the material clamping roller 609 are both rotatably connected with the material roller mounting frame 610, the feeding driving roller 608 is located below the stripping opening 614, the material clamping roller 609 is located below the feeding driving roller 608, the side wall of the material clamping roller 609 is close to the side wall of the feeding driving roller 608, the waste material winding shaft 612 is rotatably mounted on the machine frame 601, and the feeding driving device 611 is mounted on the machine frame 601 and is in transmission connection with the feeding driving roller 608 and the waste material winding shaft 612 to drive the feeding driving roller 608 and the waste material winding shaft 612 to rotate.

In an implementation, a third guide roller 607 for guiding the material belt may be disposed between the material stripping opening 614 and the feeding driving roller 608, and the third guide roller 607 may be rotatably mounted on the frame 601.

As shown in fig. 2 and fig. 3, the feeding driving device 611 may include a first driving motor 6111, a first rotating shaft 6113, a first transmission assembly and a second transmission assembly, the first driving motor 6111 is fixed on the frame 601 through a mounting rod, one end of the first rotating shaft 6113 is connected to an output shaft of the first driving motor 6111 through a coupling 6112, the other end of the first rotating shaft 6113 penetrates through a side plate of the frame 601 and is connected to the feeding driving roller 608 through the first transmission assembly in a transmission manner, and the waste material winding shaft 612 is connected to the first rotating shaft 6113 through the second transmission assembly in a transmission manner.

Preferably, the first transmission assembly may include a first pulley 6116, a second pulley 6117 and a first synchronous belt 6119, the first pulley 6116 is mounted on the first rotating shaft 6113, the second pulley 6117 is mounted on the feeding driving roller 608, the first pulley 6116 is synchronously connected with the second pulley 6117 through the first synchronous belt 6119, the second transmission assembly may include a third pulley 6114, a fourth pulley 6115 and a second synchronous belt 6118, the third pulley 6114 is mounted on the first rotating shaft 6113, the fourth pulley 6115 is mounted on the waste material winding shaft 612, and the third pulley 6114 is synchronously connected with the fourth pulley 6115 through the second synchronous belt 6118. Of course, in other embodiments, the feeding driving roller 608 and the waste material rolling shaft 612 may be driven by other driving devices, which is not limited to this embodiment.

As shown in fig. 8, the waste winding shaft 612 includes a third rotating shaft 6121 and a hook-shaped material clamping strip 6122, one end of the third rotating shaft 6121 is rotatably installed on a side plate of the rack 601, one end of the hook-shaped material clamping strip 6122 is fixed on an end surface of the third rotating shaft 6121, the other end of the hook-shaped material clamping strip 6122 extends along an axial direction of the third rotating shaft 6121 and is close to a side wall of the third rotating shaft 6121, and the hook-shaped material clamping strip 6122 can be matched with the side wall of the third rotating shaft 6121 to clamp the material strip, so that an end of the material strip is clamped on the waste winding shaft 612.

During operation, as shown in fig. 9, a material roll is placed on the material roll placing rack 602, a material belt 01 in the material roll passes through a first guide roller 6031, a pressing block 6034, a second guide roller 6032, a material channel 617 of the stripping plate 604, a stripping opening 614, a third guide roller 607 and a feeding driving roller 608 in sequence, and is finally wound on a waste material winding shaft 612, in the process, the material clamping roller 609 and the feeding driving roller 608 are matched to clamp the material belt 01, the feeding driving device 611 can drive the feeding driving roller 608 to rotate, so that the feeding driving roller 608 drives the material belt 01 to move, feeding is achieved, when the material belt 01 passes through a stripping end of the stripping plate 604, the material belt 01 can be bent downwards in an inclined mode, a film on the material belt 01 is separated from release paper of the material belt, the film falls off and is transferred to a platform 606 to be.

In addition, this embodiment can be used with current laminator to peel off the material for the laminator and supply.

To sum up, the utility model has the advantages of simple structure, reasonable in design, the stripper plate can shell the material to the material area of shelling the material end through it, makes the diaphragm with shift to after separating from the type paper and wait to send the platform on, has realized automatic material operation of shelling, has reduced the personnel selection cost when having improved production efficiency, is favorable to production.

The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.

Claims

1. A shell material feeder which characterized in that: the device comprises a rack (601), a material roll placing frame (602) for placing a material roll, a stripping plate (604), a platform (606) to be fed, a stripping plate translation driving device (605) for driving the stripping plate (604) to translate relative to the platform (606) to be fed, a feeding driving roller (608) for driving feeding in cooperation with a material clamping roller (609), a feeding driving device (611), a material clamping roller (609) and a waste material winding shaft (612) for winding the stripped material strip, wherein the material roll placing frame (602) is installed on the rack (601), the stripping plate (604) is installed on a fixed platform (6011) of the rack (601) in a translation mode through a sliding rail sliding block assembly (618) and is located at the top of the rack (601), the stripping plate translation driving device (605) is installed on the fixed platform (6011) and is in transmission connection with the stripping plate (604), the platform (606) to be fed is installed at the top of the rack (601) and is located at the side edge of the stripping plate (604), stripper (604) and wait to be provided with between platform (606) and supply the material area downward sloping to buckle material stripping mouth (614) that passes through, stripper (604) are close to the one end terminal surface of waiting to send platform (606) and from top to bottom form inclined plane (615) to the direction slope of keeping away from waiting to send platform (606), pay-off drive roller (608) and material clamping roller (609) are all installed in frame (601) through material roller mounting bracket (610), pay-off drive roller (608) and material clamping roller (609) all rotate with material roller mounting bracket (610) and are connected, pay-off drive roller (608) are located material stripping mouth (614) below, material clamping roller (609) are located pay-off drive roller (608) below, the lateral wall of material clamping roller (609) pay-off drive roller (608) is pressed close to, waste material rolling axle (612) rotationally installs in frame (601), pay-off drive arrangement (611) are installed in frame (601) and with pay-off drive roller (608) and waste material rolling axle (612) The transmission connection drives the feeding driving roller (608) and the waste material rolling shaft (612) to rotate.

2. A stripping feeder as claimed in claim 1, characterised in that: the feeding driving device (611) comprises a first driving motor (6111), a first rotating shaft (6113), a first transmission assembly and a second transmission assembly, the first driving motor (6111) is fixed on the rack (601) through a mounting rod, one end of the first rotating shaft (6113) is connected with an output shaft of the first driving motor (6111) through a coupler (6112), the other end of the first rotating shaft (6113) penetrates through a side plate of the rack (601) and then is in transmission connection with the feeding driving roller (608) through the first transmission assembly, and the waste winding shaft (612) is in transmission connection with the first rotating shaft (6113) through the second transmission assembly.

3. A stripping feeder as claimed in claim 2, wherein: the first transmission assembly comprises a first belt wheel (6116), a second belt wheel (6117) and a first synchronous belt (6119), the first belt wheel (6116) is installed on a first rotating shaft (6113), the second belt wheel (6117) is installed on the feeding driving roller (608), and the first belt wheel (6116) is synchronously connected with the second belt wheel (6117) through the first synchronous belt (6119).

4. A stripping feeder as claimed in claim 3, characterised in that: a tensioning adjusting device used for adjusting the tension degree of the first synchronous belt (6119) is arranged between the first belt wheel (6116) and the second belt wheel (6117), the tensioning adjusting device comprises a plug beating screw (6191) and a bearing (6192), the plug beating screw (6191) is installed in a hole position (6012) formed in a side plate of the rack (601), the bearing (6192) is sleeved on the plug beating screw (6191) and is in contact with the first synchronous belt (6119), and the plug beating screw (6191) can move in the hole position (6012) to adjust the position.

5. A stripping feeder as claimed in claim 2, wherein: the second transmission assembly comprises a third belt wheel (6114), a fourth belt wheel (6115) and a second synchronous belt (6118), the third belt wheel (6114) is installed on the first rotating shaft (6113), the fourth belt wheel (6115) is installed on the waste material winding shaft (612), and the third belt wheel (6114) is synchronously connected with the fourth belt wheel (6115) through the second synchronous belt (6118).

6. A stripping feeder as claimed in claim 1, characterised in that: stripper plate translation drive arrangement (605) includes second driving motor (6051), fifth band pulley (6053), sixth band pulley (6054) and third hold-in range (6052), second driving motor (6051) longitudinal fixation is on fixed platform (6011) of frame (601), sixth band pulley (6054) rotationally installs on fixed platform (6011) through the shaft, fifth band pulley (6053) are installed on the output shaft of second driving motor (6051) and are passed through third hold-in range (6052) and sixth band pulley (6054) synchronous connection, stripper plate (604) are through one of them section area body fixed connection of hold-in range locking piece (6041) and third hold-in range (6052) that the bottom set up.

7. A stripping feeder as claimed in claim 1, characterised in that: the material roll placing rack (602) comprises a mounting arm (613), a second rotating shaft (6021) and two limiting baffles (6023), wherein the lower end of the mounting arm (613) is fixed on the rack (601), one end of the second rotating shaft (6021) is mounted at the upper end of the mounting arm (613), and the two limiting baffles (6023) are respectively arranged on the second rotating shaft (6021) at intervals.

8. A stripping feeder as claimed in claim 7, wherein: still be provided with material pressing guider (603) that is used for pressing the material direction between material book rack (602) and stripper plate (604), material pressing guider (603) includes first deflector roll (6031), second deflector roll (6032), swage cylinder (6033), briquetting mount pad (6035), three briquetting (6034) and press seat (6036), install on installation arm (613) through swage cylinder mount pad (6037) swage cylinder (6033), briquetting (6034) is connected with the output shaft of swage cylinder (6033) through briquetting mount pad (6035), and the bottom at briquetting mount pad (6035) is fixed at the interval respectively to three briquetting (6034), press seat (6036) to fix on installation arm (613) and be located briquetting (6034) below, first deflector roll (6031) and second deflector roll (6032) all rotatably install on installation arm (613), first deflector roll (31) is located one side of 6036), the second guide roller (6032) is positioned on the other side of the pressing seat (6036).

9. A stripping feeder as claimed in claim 1, characterised in that: the waste material winding shaft (612) comprises a third rotating shaft (6121) and a hook-shaped material clamping strip (6122), one end of the third rotating shaft (6121) is rotatably installed on a side plate of the rack (601), one end of the hook-shaped material clamping strip (6122) is fixed on the end face of the third rotating shaft (6121), and the other end of the hook-shaped material clamping strip (6122) extends along the axial direction of the third rotating shaft (6121) and is close to the side wall of the third rotating shaft (6121).

10. A stripping feeder as claimed in claim 1, characterised in that: be provided with between material stripping opening (614) and the pay-off drive roller (608) and be used for the third deflector roll (607) of material area direction, third deflector roll (607) rotationally installs in frame (601), the top interval of material stripping plate (604) is provided with two limiting plates (616), is provided with material way (617) that the confession material area passes through between two limiting plates (616), and the edge in material area can be pushed down to one of them limiting plate (616).