CN218555218U

CN218555218U - Rear stock stop

Info

Publication number: CN218555218U
Application number: CN202222677871.XU
Authority: CN
Inventors: 徐最虎; 戴弘业
Original assignee: Foshan Radical Technology Co ltd
Current assignee: Foshan Radical Technology Co ltd
Priority date: 2022-10-11
Filing date: 2022-10-11
Publication date: 2023-03-03
Anticipated expiration: 2032-10-11

Abstract

The utility model discloses a back stock stop, include: a cross member extending in a left-right direction; a transverse drive assembly mounted to the cross beam; the transverse driving assembly drives the at least two rear material blocking assemblies to move along the left and right directions independently; the rear material blocking assembly comprises a rear material blocking frame, a first front and rear driving assembly and a material blocking plate, the rear material blocking frame is connected with the cross beam in a sliding mode, the first front and rear driving assembly is installed on the rear material blocking frame, and the first front and rear driving assembly drives the material blocking plate to move front and rear. The utility model discloses can improve the practicality of bender to the suitability of different panels and bender.

Description

Rear stock stop

Technical Field

The utility model relates to a bender technical field, especially back stock stop.

Background

Among the prior art, the bender is used for bending the panel that is the rectangle usually, has step-like structure's dysmorphism panel to some peripheries, and the back stock stop of current bender can fix a position and keep off the material to the rear end of dysmorphism panel usually unable adaptation, needs the tool of the special adaptation of manual design installation for the suitability of the back stock stop of current bender to foretell dysmorphism panel is relatively poor.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the utility model provides a back stock stop to solve among the prior art the relatively poor technical problem of bender to the suitability of special-shaped plate.

The utility model provides a solution of its technical problem is:

back stock stop includes:

a cross member extending in a left-right direction;

a transverse drive assembly mounted to the cross beam;

the transverse driving assembly drives the at least two rear material blocking assemblies to move along the left and right directions independently; the rear material blocking assembly comprises a rear material blocking frame, a first front and rear driving assembly and a material blocking plate, the rear material blocking frame is connected with the cross beam in a sliding mode, the first front and rear driving assembly is installed on the rear material blocking frame, and the first front and rear driving assembly drives the material blocking plate to move front and back.

According to the technical scheme, when the rear material blocking mechanism is used for positioning a plate, the transverse driving assembly respectively drives the two rear material blocking assemblies to move in the left and right directions, so that the two rear material blocking assemblies can be adapted to the width and the placement position of the plate, and the two rear material blocking assemblies respectively move to appropriate positions to support the plate; two driving assembly drive two striker plates respectively and follow the fore-and-aft direction motion afterwards for two striker plates are in the dislocation of back and forth orientation, and not completely straight with the limit of some rear ends of adaptation, have the metal sheet of step form structure, improve the suitability of bender to different panel and the practicality of bender.

As a further improvement of the above technical solution, the transverse driving assembly comprises a transverse driving source, a transverse driving gear and a transverse driving rack; the transverse driving rack is fixedly connected with the cross beam, the transverse driving sources are arranged in one-to-one correspondence with the rear material blocking assemblies, and the transverse driving sources are relatively fixed with the rear material blocking assemblies; the horizontal driving source with horizontal drive gear one-to-one, horizontal driving source drive horizontal drive gear is rotatory, horizontal drive rack extends along left right direction, horizontal drive gear with horizontal drive rack toothing.

Through above-mentioned technical scheme, through horizontal drive gear and horizontal drive rack for a plurality of back dam subassemblies can move respectively, make the panel of back stock stop adaptable different width.

As a further improvement of the above technical solution, the first front-rear driving assembly includes a first front-rear screw, a first front-rear driving source, and a first front-rear slide; first front and back driving source install in back shelves magazine, around first lead screw with back shelves magazine rotates to be connected, first front and back driving source drive the lead screw is rotatory around first, first front and back slide with lead screw threaded connection around first, first front and back slide with the striker plate is connected.

Through the technical scheme, the first front and rear screw rods and the first front and rear sliding seats are of screw rod transmission structures, and the transmission precision is high.

As a further improvement of the technical scheme, the device further comprises an up-and-down driving assembly, and the up-and-down driving assembly drives the cross beam to move up and down.

Through above-mentioned technical scheme, upper and lower drive assembly drive crossbeam up-and-down motion for the different panel of bender adaptation.

As a further improvement of the above technical solution, the up-and-down driving assembly includes at least two up-and-down driving structures and at least one up-and-down driving source, the number of the up-and-down driving sources is not greater than the number of the up-and-down driving structures, the at least two up-and-down driving structures are respectively disposed at two ends of the cross beam, the up-and-down driving source drives the up-and-down driving structures, and the up-and-down driving structures drive the cross beam to move up and down.

As a further improvement of the above technical solution, the up-down driving assembly further comprises a first synchronous belt, a first synchronous wheel and a first driving wheel; the number of the upper and lower driving sources is set to be one, and the upper and lower driving sources are connected with the first driving wheel; the first synchronizing wheels are matched with the upper and lower driving structures in number, the first synchronizing wheels are connected with the upper and lower driving structures, and the first synchronizing wheels are in transmission connection with the first driving wheels through the first synchronizing belt.

Through above-mentioned technical scheme, upper and lower driving source during operation can drive first drive wheel rotatory, and first drive wheel carries out the transmission through first hold-in range and first synchronous wheel, first synchronous wheel and first drive wheel synchronous rotation. And because first synchronizing wheel is rotatory, first front and back lead screw and first synchronizing wheel synchronous revolution, two lead screw synchronous rotations about being promptly to drive the whole motion along the up-and-down direction of crossbeam, through such setting, can avoid two upper and lower drive structure to drive through two driving sources respectively, thereby avoid two asynchronous problems of driving source, can avoid the crossbeam to take place the emergence of unfavorable condition such as slope at the in-process of up-and-down motion.

As a further improvement of the above technical solution, the up-down driving structure includes an up-down screw rod and an up-down fixing seat, the up-down screw rod is in threaded connection with the up-down fixing seat, and the up-down screw rod is relatively fixed with the first synchronous wheel.

Through above-mentioned technical scheme, adjust the upper and lower position of crossbeam through upper and lower lead screw and upper and lower fixing base, the transmission precision is high.

As a further improvement of the above technical solution, the device further comprises at least two second front and rear driving assemblies, wherein the at least two second front and rear driving assemblies are respectively arranged at two ends of the cross beam, and the second front and rear driving assemblies drive the cross beam to move along the front and rear direction.

Through above-mentioned technical scheme, set up to two front and back drive assembly, can drive the both ends of crossbeam simultaneously, avoid the crossbeam only have one end to have the drive structure to lead to the drive structure atress of one end great and produce the condition of skew easily.

As a further improvement of the above technical solution, the second front-rear driving assembly includes a mounting frame, a second front-rear lead screw, and a second front-rear slide; slide around the second with the mounting bracket slides and is connected, lead screw around the second with the mounting bracket rotates to be connected, lead screw around the second with slide threaded connection around the second, slide around the second with the crossbeam is in the synchronous motion in the front and back direction.

Through the technical scheme, when the rear stock stop is used for positioning the plate, the front and rear driving assemblies work firstly, the upper and lower driving assemblies, the cross beam and the rear stock stop are driven to move in the front and rear directions, the moving amplitude of the action process is large, the action is fast, and the primary positioning effect of the stock stop is achieved.

As a further improvement of the above technical solution, a plurality of the second front and rear lead screws are synchronized through a second linkage structure; the second linkage structure comprises a second synchronous wheel, a second synchronous belt, a second driving wheel and a second front and rear driving source; the driving source drives the second driving wheel to rotate around the second, the second synchronizing wheel is connected with the second driving wheel through the second synchronous belt in a transmission mode, and the second synchronizing wheel is fixedly connected with the second front screw rod and the second rear screw rod.

Through above-mentioned technical scheme, the during operation of driving source around the second can drive the second drive wheel rotatory, and the second drive wheel carries out the transmission through second hold-in range and second synchronizing wheel, second synchronizing wheel and second drive wheel synchronous rotation. And because the second synchronizing wheel is rotatory, around the second lead screw and the synchronous revolution of second synchronizing wheel, two lead screws rotate around the second promptly in step to drive the whole motion along the fore-and-aft direction of crossbeam, through such setting, can avoid lead screw around two seconds to drive through two driving sources respectively, thereby avoid the problem of two driving sources asynchronizations, can avoid the crossbeam to take place the emergence of unfavorable condition such as slope in the in-process of back and forth motion.

The utility model has the advantages that: the adaptability of the bending machine to different plates and the practicability of the bending machine are improved.

The utility model is used for bender technical field.

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures represent only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from these figures without inventive effort.

Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;

fig. 2 is a schematic view of the overall structure of the cross beam, the first front and rear driving assemblies and the transverse driving assembly according to the embodiment of the present invention;

fig. 3 is a schematic view of another angle of the cross beam, the first front-rear driving assembly and the transverse driving assembly according to the embodiment of the present invention;

fig. 4 is an overall structure diagram of a cross-sectional structure of the embodiment of the present invention, in which a cross section is parallel to a horizontal plane;

fig. 5 is a schematic overall structural diagram of a part of the second front-rear driving assembly and the up-down driving assembly according to the embodiment of the present invention.

In the figure, 100, a beam; 200. a transverse drive assembly; 210. a transverse driving rack; 220. a transverse drive gear; 230. a lateral drive source; 300. a first front and rear drive assembly; 310. a first front and rear slide; 320. a first front and rear drive source; 330. a first front and rear screw rod; 340. a first guide bar; 350. a first guide seat; 400. an up-down driving assembly; 410. a first synchronization belt; 420. a first synchronizing wheel; 430. a first drive wheel; 440. an up-down driving source; 450. an up-down driving structure; 451. an upper fixing seat and a lower fixing seat; 452. an upper screw rod and a lower screw rod; 460. an upper guide seat and a lower guide seat; 470. an upper and lower guide bar; 500. a second front and rear drive assembly; 510. a second synchronizing wheel; 520. a second front and rear slide; 530. a second front and rear screw rod; 540. a mounting frame; 550. a second front and rear rail; 560. a second front and rear guide seat; 600. a rear material blocking assembly; 610. a striker plate; 630. back shelves work or material rest.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments to be described below with reference to the accompanying drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention. In addition, all the coupling/connection relationships mentioned herein do not mean that the components are directly connected, but mean that a better coupling structure can be formed by adding or reducing coupling accessories according to specific implementation conditions. The technical characteristics in the invention can be combined interactively on the premise of not conflicting with each other.

In the description of the present invention, it should be understood that the directional descriptions, such as the directions or positional relationships indicated by upper, lower, front, rear, left, right, etc., are based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but not for indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.

In the description of the present invention, a plurality of meanings are one or more, a plurality of meanings are two or more, and the terms greater than, smaller than, exceeding, etc. are understood as excluding the number, and the terms greater than, lower than, within, etc. are understood as including the number. If there is a description of first and second for the purpose of distinguishing technical features only, this is not to be understood as indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of technical features indicated.

Referring to fig. 1 to 5, a back stock stop for a bending machine is provided with a front-back direction, a left-right direction and an up-down direction which are orthogonal to each other.

The rear material blocking mechanism comprises a beam 100, a transverse driving assembly 200, an up-down driving assembly 400, a second front-back driving assembly 500 and a rear material blocking assembly 600.

The number of the second front and rear driving assemblies 500 is set to two (in other embodiments, the number of the second front and rear driving assemblies 500 may also be set to three, etc.), the two second front and rear driving assemblies 500 are arranged in the left-right direction, and the two second front and rear driving assemblies 500 are respectively disposed at both ends of the cross beam 100. The two front and rear driving assemblies are synchronous through a second linkage structure.

The second front and rear driving assembly 500 includes a second front and rear slide 520, a second front and rear screw 530, and a mounting bracket 540.

The mounting frame 540 is fixedly installed at an inner sidewall of the bending machine by screws, and the mounting frame 540 is installed at a lower portion of the bending machine.

The second front and rear carriages 520 are mounted on the mounting frame 540 and the second front and rear carriages 520 are slidably connected to the mounting frame 540.

A second front-rear guide rail 550 and a second front-rear guide seat 560 are arranged between the second front-rear sliding seat 520 and the mounting frame 540, the second front-rear guide rail 550 extends along the front-rear direction, the second front-rear guide rail 550 is fixed on the mounting frame 540 through screws, the second front-rear guide seat 560 is connected with the second front-rear guide rail 550 in a sliding manner, and the second front-rear guide rail 550 and the second front-rear guide seat 560 guide the second front-rear sliding seat 520 so as to avoid large deviation generated in the movement process of the second front-rear sliding seat 520.

The front end and the rear end of the second front and rear screw rod 530 are rotatably connected with the mounting rack 540 respectively, and bearings are arranged between the front end and the rear end of the second front and rear screw rod 530 and the mounting rack 540, so that the rotational friction between the second front and rear screw rod 530 and the mounting rack 540 can be reduced by the bearings. The second front and rear screws 530 are threadedly coupled to the second front and rear slides 520, and when the second front and rear screws 530 rotate, the second front and rear slides 520 are driven to move in the front and rear directions.

The second linkage structure includes a second front and rear driving source, a second driving wheel, a second timing belt, and a second timing wheel 510 (in other embodiments, a chain may be used instead of the second timing belt, and the second driving wheel and the second timing wheel 510 are provided as sprockets fitted to the chain to achieve transmission of power and synchronous rotation of the sprockets). And the second front and rear driving sources are fixedly connected with the shell of the bending machine.

The second driving wheel is rotatably connected with the shell of the bending machine, and it can be understood that a bearing is arranged between the second front and rear driving wheels and the shell of the bending machine to reduce friction between the second front and rear driving wheels and the shell of the bending machine; the output end of the second front and rear driving source is fixedly connected with the second driving wheel, and the second front and rear driving source drives the second driving wheel to rotate. The number of the second synchronizing wheels 510 is the same as that of the second front and rear driving assemblies 500, the second synchronizing wheels 510 correspond to the second front and rear driving assemblies 500 one by one, and the second synchronizing wheels 510 are fixedly connected to the front ends of the corresponding second front and rear lead screws 530. The second synchronous belt passes around the second synchronous wheel 510 and the second driving wheel, and the second synchronous belt is in transmission connection with the second driving wheel and the second synchronous wheel 510.

During operation of the front and rear driving sources of the second, the second driving wheel is driven to rotate, the second driving wheel is driven to transmit with the second synchronous wheel 510 through the second synchronous belt, and the second synchronous wheel 510 and the second driving wheel rotate synchronously. And because the second synchronizing wheel 510 rotates, the second front-rear screw 530 and the second synchronizing wheel 510 rotate synchronously, that is, the two second front-rear screw 530 rotate synchronously, so as to drive the whole beam 100 to move along the front-rear direction, through the arrangement, the problem that the two second front-rear screw 530 are respectively driven by two driving sources can be avoided, so that the two driving sources are not synchronous, and the adverse conditions of inclination and the like in the front-rear moving process of the beam 100 can be avoided.

The up-down driving assembly 400 includes a first timing belt 410, a first timing wheel 420, a first driving wheel 430, an up-down driving source 440, and two up-down driving structures 450.

The first synchronizing wheels 420 and the upper and lower driving structures 450 have the same number, and the first synchronizing wheels 420 and the upper and lower driving structures 450 are disposed in a one-to-one correspondence.

The first synchronizing wheel 420 is rotatably connected to the cross member 100. The up-down driving source 440 is provided as a servo motor, the up-down driving source 440 is fixedly installed to the cross member 100, and the first driving wheel 430 is fixedly connected to an output shaft of the up-down driving source 440, and the up-down driving source 440 drives the first driving wheel 430 to rotate when operating.

The first timing belt 410 passes around the first timing wheel 420 and the first driving wheel 430, and the first timing belt 410 is in driving connection with the first timing wheel 420 and the first driving wheel 430 (in other embodiments, the first timing belt 410 may be replaced by a chain, and correspondingly, the first timing wheel 420 and the first driving wheel 430 are replaced by sprockets).

The first timing belt 410 is used to effect power transmission such that the two first timing wheels 420 move in synchronization with the first driving wheel 430.

The number of the up-down driving structures 450 is two, the two up-down driving structures 450 are respectively disposed at the left and right ends of the cross beam 100, and the up-down driving assembly 400 includes an up-down fixing base 451 and an up-down screw rod 452. The upper and lower holders 451 are fixedly connected to the second front and rear sliders 520. The upper end of the upper and lower screw rods 452 is rotatably connected to the cross beam 100, when the upper and lower screw rods 452 move in the up-down direction, the cross beam 100 is driven to move in the up-down direction, and the upper and lower fixing seats 451 are in threaded connection with the upper and lower screw rods 452. The upper ends of the upper and lower screw rods 452 are fixedly connected with the first synchronizing wheel 420, when the first synchronizing wheel 420 rotates, the upper and lower screw rods 452 are driven to rotate, and due to the fact that the upper and lower fixing seats 451 and the upper and lower screw rods 452 are in threaded connection, when the upper and lower screw rods 452 rotate relative to the upper and lower fixing seats 451, the upper and lower screw rods 452 can ascend or descend, so that the cross beam 100 is driven to ascend or descend, and the effect of adjusting the height of the cross beam 100 is achieved.

When the up-down driving source 440 operates, the first driving wheel 430 is driven to rotate, and the first driving wheel 430 is driven to rotate with the first synchronizing wheel 420 through the first synchronizing belt 410, so that the first synchronizing wheel 420 and the first driving wheel 430 rotate synchronously. And because the first synchronizing wheel 420 rotates, the first front and rear screw rods 330 rotate synchronously with the first synchronizing wheel 420, that is, the two upper and lower screw rods 452 rotate synchronously, so as to drive the whole beam 100 to move in the up-and-down direction, through the arrangement, the two upper and lower screw rods 452 can be prevented from being driven by the two driving sources respectively, so that the problem that the two driving sources are not synchronous can be avoided, and the occurrence of adverse conditions such as inclination and the like of the beam 100 in the up-and-down movement process can be avoided.

The up-down driving assembly 400 further includes an up-down guiding structure including an up-down guiding base 460 and an up-down guiding rod 470 (in other embodiments, a guiding rail and a guiding base may be used), the up-down guiding base 460 is fixedly connected to the second front-rear sliding base 520, the up-down guiding rod 470 is a circular rod-shaped structure, and the up-down guiding rod 470 extends in an up-down direction. The upper and lower guide seats 460 are slidably coupled to the upper and lower guide rods 470. The upper and lower guide seats 460 and the upper and lower guide bars 470 guide the cross beam 100 to prevent the cross beam 100 from being deviated during the up and down movement.

The number of back material blocking assemblies 600 is set to two (in other embodiments, the number of back material blocking assemblies 600 can also be set to more than three), and the two back material blocking assemblies 600 are arranged along the left and right directions.

The backstop assembly 600 includes a striker plate 610, a first front-rear drive assembly 300, and a backstop stock shelf 630. The rear material shelf 630 is connected with the cross beam 100 in a sliding manner, and the relative sliding of the rear material shelf 630 and the cross beam 100 is driven by the transverse driving assembly 200.

The transverse drive assembly 200 includes a transverse drive rack 210, a transverse drive gear 220, and a transverse drive source 230. The transverse driving rack 210 extends in the left-right direction, and the transverse driving rack 210 is fixedly connected to the lower end surface of the cross beam 100.

The transverse driving source 230 is set to be a servo motor, two transverse driving sources 230 are provided, and the two transverse driving sources 230 are respectively arranged corresponding to the two rear stock stop assemblies 600. The lateral driving source 230 is fixedly installed at the rear end of the back frame 630.

The transverse driving gear 220 is fixedly connected with an output end of the transverse driving source 230, the transverse driving source 230 drives the transverse driving gear 220 to rotate, meanwhile, the transverse driving gear 220 is meshed with the transverse driving rack 210, and when the transverse driving gear 220 rotates, the transverse driving gear 220 rotates relative to the transverse driving rack 210, so that the transverse beam 100 is driven to move in the left-right direction.

Two horizontal driving source 230 drive two back striker assemblies 600 respectively and move along the left and right directions for two back striker assemblies 600 can adjust according to the width of the panel that needs were bent and place the position, make two back striker assemblies 600 can carry out the adaptation to the panel of difference, can effectively improve this back striker mechanism's practicality.

The first front-rear driving assembly 300 is installed at the rear rack 630.

The first front-rear driving assembly 300 includes a first front-rear slide 310, a first front-rear screw 330, and a first front-rear driving source 320.

The first front and rear driving source 320 is fixedly connected to the rear material frame 630, and the first front and rear driving source 320 is a servo motor. The first front and rear screw 330 extends in the front-rear direction, both ends of the first front and rear screw 330 are rotatably connected with the rear material rack 630, the rear end of the first front and rear screw 330 is fixedly connected with the output shaft of the first front and rear driving source 320, and the first front and rear driving source 320 drives the first front and rear screw 330 to rotate. The first front-rear sliding base 310 is slidably connected to a rear shelf 630, the rear shelf 630 is slidably movable in a front-rear direction with respect to the first front-rear sliding base 310, and the first front-rear screw 330 is threadedly connected to the first front-rear sliding base 310. The striker plate 610 is fixedly or hingedly connected to the first front and rear slides 310.

And back material stopping component 600 still is equipped with the first front and back guide bar the same with the extending direction of first front and back lead screw 330, and first front and back slide 310 is fixed with first front and back guide holder, and first front and back guide holder slides with first front and back guide bar and is connected, and first front and back guide holder and first front and back guide bar lead to first front and back slide 310, avoid first front and back slide 310 to take place the skew at the removal in-process, guaranteed the accuracy that back material stopping component 600 removed.

The striker plates 610 of the two rear striker assemblies 600 can be staggered in the front-rear direction under the driving of the first front-rear driving assemblies 300 corresponding to each other, so that the adaptable rear end of the rear striker mechanism is not a completely straight plate, and the adaptability of the rear striker mechanism and the bending machine to special-shaped plates is improved.

When the rear stock stop mechanism positions a sheet, the second front-back driving assembly 500 works firstly, the second front-back driving assembly 500 drives the upper-lower driving assembly 400, the cross beam 100 and the rear stock stop assembly 600 to move along the front-back direction, the moving range of the action process is large, the action is fast, and the primary positioning effect of the stock stop plate 610 is achieved; then, the up-down driving assembly 400 drives the beam 100 and the rear stock stop assembly 600 to move in the up-down direction, so that the stock stop plate 610 of the rear stock stop assembly 600 can support the plate in the horizontal direction; the transverse driving assembly 200 drives the two rear material blocking assemblies 600 to move in the left and right directions respectively, so that the two rear material blocking assemblies 600 can adapt to the width and the placement position of the plate, and the two rear material blocking assemblies 600 move to appropriate positions respectively to support the plate; two driving assembly 300 drive two striker plates 610 respectively and move along the fore-and-aft direction afterwards for two striker plates 610 are misplaced in the fore-and-aft direction, and not completely straight with the limit of some rear ends of adaptation, have the metal sheet of step-like structure, improve the suitability of bender to different panels and the practicality of bender.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the details of the embodiments shown, but is capable of various modifications and substitutions without departing from the spirit of the invention.

Claims

1. Back stock stop, its characterized in that: the method comprises the following steps:

a cross member extending in a left-right direction;

a transverse drive assembly mounted to the cross beam;

2. The backstop mechanism of claim 1 wherein: the transverse driving assembly comprises a transverse driving source, a transverse driving gear and a transverse driving rack; the transverse driving rack is fixedly connected with the cross beam, the transverse driving sources are arranged in one-to-one correspondence with the rear material blocking assemblies, and the transverse driving sources are relatively fixed with the rear material blocking assemblies; the horizontal driving source with horizontal drive gear one-to-one, horizontal driving source drive horizontal drive gear is rotatory, horizontal drive rack extends along left right direction, horizontal drive gear with horizontal drive rack toothing.

3. The backstop mechanism of claim 1 wherein: the first front and rear driving assembly comprises a first front and rear screw rod, a first front and rear driving source and a first front and rear sliding seat; first front and back driving source install in keep off the material frame after, first front and back lead screw with keep off the material frame after and rotate and connect, first front and back driving source drive the lead screw is rotatory around first, first front and back slide with lead screw threaded connection around first, first front and back slide with the striker plate is connected.

4. The backstop mechanism of claim 1 wherein: the device also comprises an upper driving assembly and a lower driving assembly, wherein the upper driving assembly and the lower driving assembly drive the cross beam to move up and down.

5. The backstop mechanism of claim 4 wherein: the upper and lower driving assembly comprises at least two upper and lower driving structures and at least one upper and lower driving source, the number of the upper and lower driving sources is not more than that of the upper and lower driving structures, the at least two upper and lower driving structures are respectively arranged at two ends of the cross beam, the upper and lower driving sources drive the upper and lower driving structures, and the upper and lower driving structures drive the cross beam to move up and down.

6. The backstop mechanism of claim 5 wherein: the upper and lower driving assembly further comprises a first synchronous belt, a first synchronous wheel and a first driving wheel; the number of the upper and lower driving sources is set to be one, and the upper and lower driving sources are connected with the first driving wheel; the first synchronous wheels are matched with the upper and lower driving structures in number, the first synchronous wheels are connected with the upper and lower driving structures, and the first synchronous wheels are in transmission connection with the first driving wheels through the first synchronous belts.

7. The backstop mechanism of claim 6 wherein: the up-and-down driving structure comprises an up-and-down screw rod and an up-and-down fixing seat, the up-and-down screw rod is in threaded connection with the up-and-down fixing seat, and the up-and-down screw rod is relatively fixed with the first synchronous wheel.

8. The backstop mechanism of claim 1 wherein: the beam is characterized by further comprising at least two second front and rear driving assemblies, wherein the at least two second front and rear driving assemblies are respectively arranged at two ends of the beam, and the beam is driven by the second front and rear driving assemblies to move along the front and rear directions.

9. The backstop mechanism of claim 8 wherein: the second front and rear driving assembly comprises a mounting frame, a second front and rear screw rod and a second front and rear sliding seat; slide around the second with the mounting bracket slides and is connected, lead screw around the second with the mounting bracket rotates to be connected, lead screw around the second with slide threaded connection around the second, slide around the second with the crossbeam is in the synchronous motion in the front and back direction.

10. The backstop mechanism of claim 9 wherein: the second front and rear screw rods are synchronized through a second linkage structure; the second linkage structure comprises a second synchronous wheel, a second synchronous belt, a second driving wheel and a second front and rear driving source; the second front and rear driving source drives the second driving wheel to rotate, the second synchronizing wheel is connected with the second driving wheel through a second synchronous belt in a transmission manner, and the second synchronizing wheel is fixedly connected with the second front and rear screw rods.