CN216426043U - Stacking machine - Google Patents

Abstract

The utility model discloses a stacker, which comprises a frame, the front end of frame is equipped with the feed inlet, the side is equipped with at least one lateral shifting mechanism respectively about the frame, and each lateral shifting mechanism can move to the frame inside and outside, the feed inlet is connected with the lateral shifting mechanism that is located the front end, and respectively sliding connection movable bracket mechanism below each lateral shifting mechanism, movable bracket mechanism can be relative lateral shifting mechanism to the frame inside and outside direction removal, be equipped with the blanking district below the frame, panel gets into between the lateral shifting mechanism of frame both sides by the feed inlet to support below by movable bracket mechanism, when panel removes directly over to the blanking district, the movable bracket mechanism that supports panel removes to the outside direction of frame, makes panel fall on the blanking district. The utility model is suitable for a multiple panel, work efficiency is high, and panel whereabouts distance is little, and the pile is accurate during the stack, and the sheet material does not have the fish tail, satisfies present iron and steel enterprise to the production line requirement.

Description

Stacking machine

Technical Field

The utility model relates to a stacking equipment technical field especially relates to a stacker for carrying out the stack to sheet metal.

Background

At present, the market of metal plates with high added value is getting bigger and bigger, and large-scale steel mills do a lot of work on the quality aspect of the plates, so that the characteristics of the materials in the aspects of mechanical property, surface treatment and the like are greatly improved. However, in the last step of the process, namely the stacking process after the plates are cut, the plates are scratched, and the staggered layer of the final finished plate stack is large.

The stacking equipment used by the existing plate line of a large iron and steel enterprise mainly comprises: a horseshoe roller opening type stacker and an electromagnet sucker type stacker. In the opening process of the horseshoe roller opening type stacker, the surface of a plate is easy to scratch due to friction between the roller surface and the plate surface. Due to the structural limitation, the distance between the receiving platform and the plate is large, and the deviation generated by the falling of the plate is large. The piled plates have large staggered layers, which affects the outgoing quality of the plates. And such a stacker is only suitable for thick plates. The electromagnet sucker type stacker is high in equipment cost, high in failure rate and inconvenient to maintain. Moreover, the equipment has slow action frequency, which affects the yield.

The requirements of the current steel enterprises on the production line are as follows: multiple varieties, high productivity and good quality.

Therefore, how to design a stacker which meets the requirements of the current steel enterprises on the production line, is suitable for various plates (thick plates, thin plates, wide plates and narrow plates), has high working efficiency, small falling distance of the plates, accurate stacking during stacking and no scratch of the plates is the subject of the intensive research of the inventor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a stacker, it is applicable to multiple panel, and work efficiency is high, and panel whereabouts distance is little, and the pile is accurate during the stack, and the panel does not have the fish tail, satisfies present iron and steel enterprise to producing the line requirement.

In order to achieve the above object, the present invention provides a stacker, which comprises a frame, wherein a feed inlet is arranged at the front end of the frame, at least one lateral moving mechanism is arranged at each of the left and right sides of the frame, each lateral moving mechanism can move towards the inside or the outside of the frame, the feed inlet is connected with the lateral moving mechanism at the front end, a movable bracket mechanism is slidably connected below each lateral moving mechanism, the movable bracket mechanism can move towards the inside or the outside of the frame relative to the lateral moving mechanism, a blanking area is arranged below the frame, a plate enters between the lateral moving mechanisms at both sides of the frame through the feed inlet and is supported by the movable bracket mechanism below, when the plate moves to the position right above the blanking area, the movable bracket mechanism supporting the plate moves towards the outside of the frame, and enabling the plate to fall in the blanking area.

Preferably, the transverse moving mechanism comprises a transverse moving transmission mechanism and a plurality of transverse moving support frames, the transverse moving transmission mechanism is mounted on the rack, and the plurality of transverse moving support frames are mounted at the output end of the transverse moving transmission mechanism.

Preferably, the transverse movement transmission mechanism includes a first driving motor installed on the rack, an output shaft of the first driving motor is connected with input ends of a plurality of screw jacks through a plurality of couplers, each screw jack is fixed on the rack, a screw of each screw jack is respectively screwed with a moving nut, each moving nut is respectively connected with one transverse movement support frame, and when the first driving motor drives the screw of the screw jacks to rotate through the plurality of couplers, each moving nut moves along the corresponding screw, so as to drive each transverse movement support frame to move towards the inside or the outside of the rack.

Preferably, the movable bracket mechanism comprises a movable bracket and a sliding transmission mechanism, the sliding transmission mechanism is installed on the rack, the movable bracket is installed at the output end of the sliding transmission mechanism, and the movable bracket is installed below the transverse moving mechanism in a sliding manner through a sliding rail.

Preferably, the sliding transmission mechanism comprises a second driving motor installed on the transverse moving mechanism, a main gear is installed on an output shaft of the second driving motor, a driven gear is installed on the movable bracket, and a synchronous toothed belt is installed between the main gear and the driven gear.

Preferably, a plurality of parallel carrier rollers for conveying the plate are arranged on the movable bracket, and the carrier rollers are driven to rotate by the carrier roller set driving mechanism.

Preferably, the rack is provided with at least one rear stopping mechanism capable of moving in the front-rear direction of the rack, the rear stopping mechanism comprises a first rear stopping slide rail slidably mounted on the rack, the first rear stopping slide rail can move back and forth on the rack through a first slide rail driving mechanism, a slide rail seat is connected below the first rear stopping slide rail, a second rear stopping slide rail is arranged on the slide rail seat, a rear stopping portion is slidably mounted on the second rear stopping slide rail, the rear stopping portion positions the plate entering the rack in the length direction, and the rear stopping portion can move up and down on the slide rail seat through a second slide rail driving mechanism.

Preferably, the first rear stop slide rail is driven by a first slide rail driving mechanism to move back and forth on the frame, and the slide rail seat and the first rear stop slide rail are arranged obliquely or vertically.

Preferably, the first slide rail driving mechanism includes a third driving motor mounted on the frame or the slide rail seat and a rack mounted on the slide rail seat or the frame, an output gear is mounted on an output shaft of the third driving motor, and the output gear is engaged with the rack.

Preferably, the second slide rail driving mechanism comprises a rear stopping cylinder installed on the slide rail seat, a piston rod of the rear stopping cylinder is connected with the rear stopping portion, and the rear stopping portion is driven by the extension and contraction of the piston rod to move up and down on the second rear stopping slide rail.

Preferably, a fixed stopping portion is arranged at the foremost end of the blanking area, a front stopping mechanism used for being matched with the rear stopping mechanism to position the length of the plate is further fixed on the rack, the front stopping mechanism is located between the rear stopping mechanism used in a matched mode and the fixed stopping portion, and the front stopping mechanism comprises a front stopping cylinder fixed on the rack and a front stopping portion installed at the lower end of a piston rod of the front stopping cylinder.

Preferably, a damper is installed at the lower end of the rear stopping portion, an inductive switch is arranged on the rear stopping portion above the damper, and the inductive switch controls the movable bracket mechanism to release the support of the plate.

Preferably, a side blocking portion is connected to a lower surface of the lateral moving mechanism, the side blocking portion positions the plate entering the rack in the width direction, and the movable bracket mechanism can pass through the side blocking portion when moving towards the inside of the rack.

Preferably, the plate blanking device further comprises a side beating mechanism, wherein the side beating mechanism is connected between two adjacent side blocking parts and used for pushing and aligning the plates falling to the blanking area.

Preferably, the blanking area or the stacking area is provided with a lifting platform.

After the scheme is adopted, the transverse moving mechanisms are arranged on the two sides of the stacking machine in the feeding direction, the transverse moving mechanisms on the two sides are adjusted to be adaptive to the widths of the feeding plates with different widths, and the side blocking parts connected with the lower ends of the transverse moving mechanisms are used for positioning the plates in the width direction so as to ensure the accurate blanking position of the plates in the width direction; the movable bracket mechanism is arranged below the transverse moving mechanism, the effects of supporting feeding plates and conveying the plates can be achieved by controlling the extending movement of the carrier rollers of the movable bracket mechanism, and the plates fall into the blanking area after being conveyed to the position right above the blanking area by controlling the shrinking movement of the carrier rollers of the movable bracket mechanism; the rear stopping mechanism and the fixed stopping part or the front stopping mechanism matched with the rear stopping mechanism are arranged on the rack in a sliding mode, a plurality of blanking areas or stacking areas can be arranged below the rack according to the length of the plates for stacking, one rear stopping mechanism is used for stacking the plates in one blanking area, the conveying start point and the conveying end point of the plates can be positioned by arranging the rear stopping mechanism and the fixed stopping part or the front stopping mechanism, so that the positioning of the plates in the length direction is ensured, the plates stop moving when being conveyed to be close to the rear stopping mechanism, and signals are sent by an inductive switch arranged on the rear stopping mechanism to enable a plurality of carrier rollers of the movable bracket mechanism to move towards two outer sides of the rack so that the plates can accurately fall into the stacking areas; through connecting the side between two adjacent side fender portions and clapping the mechanism, can realize the accurate location to panel to the sign indicating number is neat in the blanking district, the utility model discloses a mechanical transmission mode, the range of application is wide, and the stack precision is high, and is fast.

Drawings

FIG. 1 is a schematic view of a stacker of the present invention;

FIG. 2 is a schematic view of the connecting structure of the frame, the transverse moving mechanism and the movable bracket mechanism of the stacker of the present invention;

FIG. 3 is a schematic diagram of a right-view structure of the stacker of the present invention;

FIG. 4 is a schematic top view of the structure of FIG. 3;

FIG. 5 is a schematic diagram of a right-view structure of a lateral moving mechanism of the stacker of the present invention;

FIG. 6 is a schematic top view of the structure of FIG. 5;

FIG. 7 is a schematic view of the movable bracket mechanism of the stacker of the present invention;

FIG. 8 is a right side view schematic structural diagram of the movable bracket mechanism of the stacker of the present invention;

FIG. 9 is a schematic top view of the structure of FIG. 8;

FIG. 10 is a schematic view showing the operation state of the rear stop mechanism of the stacker with the novel embodiment mounted on the frame;

FIG. 11 is a schematic top view of the structure of FIG. 10;

FIG. 12 is a schematic diagram of a right-view structure of a rear stopping mechanism of the stacker of the present invention;

fig. 13 is a front view of the structure of fig. 12.

Detailed Description

The invention will be elucidated on the basis of an embodiment shown in the drawing. The embodiments disclosed herein are to be considered in all respects as illustrative and not restrictive. The scope of the present invention is not limited by the following description of the embodiments, but is defined only by the scope of the claims, and includes all modifications that have the same meaning as the scope of the claims and are within the scope of the claims.

The structure of the stacker of the present invention will be described with reference to the following embodiments.

Referring to fig. 1 to 4, the stacker of the present invention includes a frame 1, and the frame 1 is a rectangular frame structure. The front end of the frame 1 is provided with a feed inlet 2, and the feed inlet 2 is in a horn shape with a large front end and a small rear end.

At least one transverse moving mechanism is respectively arranged on the left side and the right side of the frame 1, and two transverse moving mechanisms are oppositely arranged on the left side and the right side of the frame 1 in the embodiment. The lateral moving mechanisms are distributed over the entire length of the frame 1. The lateral movement mechanism can move in the inner or outer direction of the frame 1 (i.e., leftward or rightward). The feed inlet 2 is connected with the front end of the transverse moving mechanism.

Referring to fig. 5 and 6, the lateral moving mechanism includes a lateral moving transmission mechanism and a plurality of lateral moving support frames 3. The transverse movement transmission mechanism comprises a first driving motor 4 installed on the rack 1, an output shaft of the first driving motor 4 is connected with input ends of a plurality of screw jacks 6 through a plurality of couplers 5, and the screw jacks 6 are fixed on the rack 1. The concrete connection mode is as follows: the output shaft of the first driving motor 4 is engaged with the input bevel gears of the two screw jacks 6 through the two couplers 5, so that the output of the first driving motor 4 is transmitted to the two connected screw jacks 6, and the two screw jacks 6 are engaged with the input bevel gears of the other two screw jacks 6 through the two couplers 5, so that the output of the first driving motor 4 is transmitted to the plurality of screw jacks 6.

The output end screw rods 7 of the screw jacks 6 are respectively screwed with movable nuts 8, each movable nut 8 is respectively connected with a transverse moving support frame 3, and the transverse moving support frame 3 is of a rectangular frame structure. When the first driving motor 4 drives the screw rods 7 of the screw jacks 6 to rotate through the couplers 5, the movable nuts 8 move left and right along the corresponding screw rods 7, so that the transversely movable support frames 3 are driven to move towards the inside or outside of the rack 1.

The lower surface of each transverse moving support frame 3 is respectively connected with a movable bracket mechanism in a sliding way, and the movable bracket mechanism can move towards the inner or outer direction of the frame 1 relative to the transverse moving mechanism.

Referring to fig. 7, 8 and 9, the movable bracket mechanism includes a movable bracket 9 and a slide transmission mechanism. The sliding transmission mechanism is arranged on the transverse moving support frame 3. The movable bracket 9 is arranged below the transverse moving support frame 3 through a slide rail 10, and the movable bracket 9 is arranged at the output end of the sliding transmission mechanism. Specifically, the sliding transmission mechanism comprises a second driving motor 11 arranged on the transverse moving support frame 3, a main gear 12 is arranged on an output shaft of the second driving motor 11, a driven gear 13 is arranged on the movable bracket 9, a synchronous toothed belt 14 is arranged between the main gear 12 and the driven gear 13, and a toothed belt clamping device is arranged at the interface meshing position of the synchronous toothed belt 14 and is respectively connected with the movable bracket 9 and the transverse moving support frame 3. When the second driving motor 11 drives the main gear 12 to rotate, the main gear 12 drives the timing belt 14 to transmit, so that the movable bracket 9 moves towards the inside or outside of the rack 1 through the slide rail 10 relative to the transversely moving support frame 3.

The movable bracket 9 is provided with a plurality of parallel carrier rollers 16 for conveying plates, and the carrier rollers 16 are driven to rotate by a carrier roller group driving mechanism. The carrier roller group driving mechanism comprises a carrier roller group driving motor 17 arranged on the movable bracket 9, an output shaft of the carrier roller group driving motor 17 is connected with one carrier roller 16, one end of each carrier roller 16 is provided with two belt pulleys, and the two belt pulleys of each carrier roller are respectively connected with the left and right adjacent carrier rollers 16 through belts, so that the carrier rollers 16 can rotate simultaneously.

Referring to fig. 1, side blocking portions 19 are respectively connected to the lower surfaces of the lateral movement support frames 3 through bolts, and a side beating mechanism is connected between two adjacent side blocking portions 19, and the side beating mechanism of the present embodiment includes a side beating cylinder 18, and a pushing portion is connected to a piston rod end of the side beating cylinder 18. The side stop 19 of the present embodiment is configured to have an upwardly flared configuration. The side stopper 19 moves in the inside or outside direction of the frame 1 with the laterally moving support frame 3, thereby positioning the sheet material entering the frame 1 in the width direction. Through holes are respectively formed in the side blocking parts 19 at positions corresponding to the positions of the carrier rollers 16 of the movable bracket mechanism, so that the carrier rollers 16 can pass through the side blocking parts 19 when moving towards the inner direction of the frame 1. Through setting up the side and clap the mechanism, can break away from a plurality of bearing rollers 16 and fall to blanking district after panel, push away to the panel with the portion of pushing away that side claps cylinder 18 and connect, with panel yards neat on the blanking platform.

A blanking area (stacking area) is arranged below the rack 1, one stacking area or two stacking areas are generally arranged below the rack 1, if the length of the plate is not large, two stacking areas A, B shown in fig. 10 and 11 can be adopted, if the length of the plate is large, one stacking area is adopted, and a lifting platform for placing the stacked plate is arranged in the blanking area (stacking area). The plate enters the frame 1 through the feeding hole 2 and is positioned between the transverse moving mechanisms at the left side and the right side, the plurality of carrier rollers 16 of the movable bracket mechanism extend out to be used for supporting and conveying the plate to move towards the front part of the frame 1, and when the plate moves right above the blanking area, the plurality of carrier rollers 16 of the movable bracket mechanism supported below the plate shrink and move towards the outer direction of the frame 1, so that the plate falls in the blanking area.

At least one rear stop mechanism which can slide along the front and back directions of the rack 1 is installed on the rack 1, the number of the rear stop mechanisms is determined according to the number of the stacking areas, and the number of the rear stop mechanisms is two because the stacking areas are two. The two rear stopping mechanisms are matched to position the length of the plate, and a fixed stopping portion 30 located at the foremost end of the blanking area and a front stopping mechanism fixed on the frame 1 are further provided, wherein the fixed stopping portion 30 is in an upward horn-shaped structure in the embodiment. The front stop mechanism is located between the rear stop mechanism and the fixed stop 30, which are used together, and in the middle of the embodiment. The front stopping mechanism comprises a front stopping cylinder 31 fixed on the frame 1 and a front stopping portion 32 installed at the lower end of the piston rod of the front stopping cylinder 31, and the front stopping portion 32 is in an upward horn-shaped structure in this embodiment. The fixed stopping part 30 is matched with the rear stopping mechanism to be used through the front stopping mechanism and the rear stopping mechanism, so that the length of the feeding plate can be accurately positioned.

Referring to fig. 12 and 13, the backstop mechanism includes a first backstop slide rail 20 slidably mounted on the frame 1, the first backstop slide rail 20 can move back and forth on the frame 1 through a first slide rail driving mechanism, a slide rail seat 21 is disposed at a lower end of the first backstop slide rail 20, and the slide rail seat 21 and the first backstop slide rail 20 are disposed in an inclined manner or in a vertical manner. A second rear stop slide rail 22 is disposed on the inclined surface of the slide rail seat 21, a rear stop portion 23 is slidably mounted on the second rear stop slide rail 22, and the rear stop portion 23 is in an upward horn-shaped structure in this embodiment. The rear stopper portion 23 is movable up and down on the rail base 21 by the second rail drive mechanism.

The first slide rail driving mechanism includes a third driving motor 24 mounted on the frame 1 and a rack 25 mounted on the slide rail seat 21, and of course, the third driving motor 24 and the rack 25 of the first slide rail driving mechanism may also be mounted on the slide rail seat 21 and the frame 1, respectively. An output gear 26 is mounted on an output shaft of the third drive motor 24, and the output gear 26 is engaged with the rack 25.

The second slide rail driving mechanism comprises a rear stop cylinder 27 installed on the slide rail seat 21, a piston rod of the rear stop cylinder 27 is connected with the rear stopping portion 23, and the rear stopping portion 23 is driven by the piston rod to move up and down on the inclined surface of the slide rail seat 21.

The lower end of the rear stopping portion 23 is provided with a damper 28, the rear stopping portion 23 above the damper 28 is provided with an inductive switch 29, and the inductive switch 29 controls the carrier roller group driving motor 17 to enable the carrier rollers 16 to move towards the outer direction of the rack 1, so that the support of the sheet material is released, and the sheet material falls into the blanking area.

When the automatic feeding device works, according to the width of a blanking area and a feeding plate, the first driving motors 4 of the two transverse moving mechanisms on the left side and the right side of the rack 1 respectively drive the screw rods 7 of the screw jacks 6 on each side to rotate, so that the screw rods 7 drive the transverse moving support frames 3 to move towards the inner direction of the rack 1, the side blocking parts 19 below the transverse moving support frames 3 move towards the inner direction of the rack 1 along with the side blocking parts, the distance between the side blocking parts 19 on the two sides of the rack 1 corresponds to the width of the feeding plate, then the movable bracket 9 below the transverse moving mechanism is driven by the sliding transmission mechanism to move towards the inner direction of the rack 1, and the carrier rollers 16 on the movable bracket 9 extend out of the corresponding side blocking parts 19; then, the rear stopping mechanisms are adjusted, and the embodiment has two stacking areas, so that the positions of the two rear stopping mechanisms are adjusted respectively, the position of the rear stopping portion 23 of the rear stopping mechanism located in front is adjusted to be corresponding to the distance between the fixed stopping portion 30 and the length of the plates to be stacked in the stacking area a, and the position of the rear stopping portion 23 of the rear stopping mechanism located behind is adjusted to be corresponding to the distance between the rear stopping portion 23 of the rear stopping mechanism located behind and the front stopping portion 32 and the length of the plates to be stacked in the stacking area B. When the positions are adjusted, the carrier rollers 16 are driven to rotate by the driving motors 17 of the carrier roller sets.

After the machine starts to operate, plates enter from the feeding hole 2 and are supported on the plurality of carrier rollers 16 to operate, when the plates operate to the rear stopping portions 23 close to the front and rear stopping mechanisms, the induction switches 29 on the rear stopping portions 23 send release signals, and the movable brackets 9 are driven by the sliding transmission mechanism to move towards the left and right outer sides of the rack 1, so that the plates fall onto the lifting tables arranged in the stacking area A and the stacking area B after being separated from the support of the carrier rollers 16. During the falling process of the sheet material, the side blocking part 19, the rear blocking part 23, the fixed blocking part 30 and the front blocking part 32 which are in the shape of upward trumpet position locate the sheet material, namely the falling position is concentrated. And the side beating cylinder 18 is connected between the adjacent side blocking parts 19 to push the plates falling onto the lifting platform, so that the plates are orderly stacked in the stacking process, the precise positioning of the plates is ensured, and the plates stacked gradually are orderly stacked.

It is to be understood that the present invention is not limited to the example methods, structures, and precise structures shown in the drawings, which have been described above, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims (15)

1. A stacker is characterized by comprising a frame, wherein the front end of the frame is provided with a feed inlet, the left side and the right side of the frame are respectively provided with at least one transverse moving mechanism, each transverse moving mechanism can move towards the inside or the outside of the frame, the feed inlet is connected with the transverse moving mechanisms positioned at the front end, the lower parts of the transverse moving mechanisms are respectively connected with a movable bracket mechanism in a sliding way, the movable bracket mechanism can move towards the inner or outer direction of the frame relative to the transverse moving mechanism, a blanking area is arranged below the frame, the plate enters between the transverse moving mechanisms at the two sides of the frame through the feeding hole and is supported by the movable bracket mechanism below, when the plate moves to the position right above the blanking area, the movable bracket mechanism supporting the plate moves towards the outer direction of the rack, so that the plate falls on the blanking area.

2. The stacker according to claim 1 wherein the traverse mechanism comprises a traverse transmission mechanism and a plurality of traverse supports, the traverse transmission mechanism is mounted on the frame, and the plurality of traverse supports are mounted at an output end of the traverse transmission mechanism.

3. The stacker according to claim 2 wherein the traverse transmission mechanism comprises a first driving motor mounted on the frame, an output shaft of the first driving motor is connected to input ends of a plurality of screw jacks through a plurality of couplers, each screw jack is fixed on the frame, a lead screw of each screw jack is respectively screwed with a traveling nut, each traveling nut is respectively connected to one traverse support frame, and when the first driving motor drives the lead screws of the plurality of screw jacks to rotate through the plurality of couplers, each traveling nut moves along the corresponding lead screw, thereby driving each traverse support frame to move towards the inside or the outside of the frame.

4. The stacker according to claim 1 wherein the movable carriage mechanism comprises a movable carriage and a sliding transmission mechanism, the sliding transmission mechanism is mounted on the frame, the movable carriage is mounted at the output end of the sliding transmission mechanism, and the movable carriage is slidably mounted below the transverse moving mechanism through a slide rail.

5. The stacker crane according to claim 4 wherein the sliding transmission mechanism comprises a second driving motor mounted on the traverse mechanism, a main gear is mounted on an output shaft of the second driving motor, a slave gear is mounted on the movable carriage, and a timing belt is mounted between the main gear and the slave gear.

6. The stacker according to claim 4 wherein the movable carrier is provided with a plurality of parallel idlers for conveying the sheet material, and the idlers are rotated by an idler set driving mechanism.

7. The stacker according to claim 1, wherein the frame is provided with at least one rear stop mechanism capable of moving in the front-rear direction of the frame, the rear stop mechanism comprises a first rear stop slide rail slidably mounted on the frame, the first rear stop slide rail is capable of moving back and forth on the frame through a first slide rail driving mechanism, a slide rail seat is connected below the first rear stop slide rail, a second rear stop slide rail is arranged on the slide rail seat, a rear stop portion is slidably mounted on the second rear stop slide rail, the rear stop portion positions the plate entering the frame in the length direction, and the rear stop portion is capable of moving up and down on the slide rail seat through a second slide rail driving mechanism.

8. The stacker according to claim 7 wherein said first rear stop rail is driven by a first rail drive mechanism to move back and forth on said frame, said rail seat being disposed obliquely or perpendicularly to said first rear stop rail.

9. The stacker according to claim 8 wherein the first slide rail driving mechanism comprises a third driving motor mounted on the frame or the slide rail seat and a rack mounted on the slide rail seat or the frame, an output gear is mounted on an output shaft of the third driving motor, and the output gear is engaged with the rack.

10. The stacker according to claim 7 wherein the second slide rail driving mechanism comprises a rear stop cylinder mounted on the slide rail seat, a piston rod of the rear stop cylinder is connected to the rear stop portion, and the rear stop portion is driven by the extension and contraction of the piston rod to move up and down on the second rear stop slide rail.

11. The stacker according to claim 7 wherein a fixed stop portion is provided at the foremost end of the blanking area, a front stop mechanism for positioning the length of the plate material in cooperation with the rear stop mechanism is further fixed on the frame, the front stop mechanism is located between the rear stop mechanism and the fixed stop portion, and the front stop mechanism comprises a front stop cylinder fixed on the frame and a front stop portion mounted at the lower end of a piston rod of the front stop cylinder.

12. The stacker according to claim 7 wherein a damper is mounted at a lower end of the rear stopper portion, and an inductive switch is provided on the rear stopper portion above the damper, the inductive switch controlling the movable carriage mechanism to release the support of the sheet material.

13. The stacker crane according to claim 1 wherein a side stop portion is connected to a lower surface of the lateral moving mechanism, the side stop portion positioning the sheet material entering the frame in a width direction, the movable carriage mechanism being configured to pass through the side stop portion when moving in the inside direction of the frame.

14. The stacker according to claim 13 further comprising a side beating mechanism connected between two adjacent side stop portions for pushing and aligning the sheet material falling to the blanking area.

15. The stacker according to claim 1 wherein the blanking or stacking section is provided with a lifting table.

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