CN210214137U - Unstacker - Google Patents

Abstract

An unstacker belongs to the technical field of unstacking equipment. The utility model discloses a solve the current equipment use of breaking a jam, the problem of the inefficiency of breaking a jam, poor stability. The utility model discloses a base, lift platform, elevating gear, pneumatic cylinder and trip shaft seat install the turnover shaft seat on the base, elevating gear installs on the turnover shaft seat through the upset center pin is articulated, the cylinder body end of pneumatic cylinder install on the base, the output and the elevating gear of pneumatic cylinder establish and are connected, under the impetus of pneumatic cylinder, the pitching action is realized to the relative base of elevating gear, lift platform install on elevating gear, lift platform is straight reciprocating motion on elevating gear. The utility model discloses be convenient for accomplish the work automation mechanized operation of breaking a jam, improve the efficiency of breaking a jam.

Description

Unstacker

Technical Field

The utility model relates to a mechanism of breaking a jam of goods in bags belongs to the equipment of breaking a jam technical field.

Background

The bagged goods is basically automated in the aspect of packaging and stacking, but in the logistics transfer process, the bagged goods after stacking is frequently required to be disassembled into single bags, and the bags are transferred as units, for example, the bagged goods are loaded and delivered, and ingredients are blended in the production process.

At present, the automatic unstacking mode adopts a hand grasping mode of a robot (joint type or rectangular coordinate type) matched with a vacuum chuck, and the automatic unstacking mode has the following defects:

1. the mode needs to be matched with a stack type visual identification, grabbing (or sucking) and placing operation system and the like, so that the cost is higher;

2. influenced by materials, bag quality and the like, the unstacking efficiency is low and the stability is poor in the vacuum grabbing process;

3. most bags of bagged goods are plastic woven bags, and a vacuum sucker cannot establish high vacuum degree when sucking the bags, and cannot suck or cannot suck reliably;

4. the pocket position decision manipulator on feed pile upper portion snatchs the stroke of the vertical direction of part, and along with the increase of goods height, the tablet of feed pile top is apart from the vertical distance grow of manipulator, so need transfer the vertical removal's that the manipulator snatched distance increase, and this kind of displacement must lead to the fact the design complexity of manipulator, causes its control loaded down with trivial details, cost greatly increased.

Based on the shortcoming of above-mentioned current automatic mechanism of breaking a jam, need urgently to propose a pure mechanical type's mode, need not vacuum system and sucking disc and participate in, more need not supporting buttress type visual identification system, need not complicated operation process to the demand of breaking a jam of the various packing material bags that adapt to on the existing market.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the current equipment use of breaking a jam, the problem of the inefficiency of breaking a jam, poor stability. A brief summary of the present invention is provided below in order to provide a basic understanding of some aspects of the present invention. It should be understood that this summary is not an exhaustive overview of the invention. It is not intended to identify key or critical elements of the invention or to delineate the scope of the invention.

The technical scheme of the utility model:

a unstacker comprises a base, a lifting platform, a lifting device, a hydraulic cylinder and a turnover shaft seat, wherein the turnover shaft seat is installed on the base, the lifting device is installed on the turnover shaft seat in a hinged mode through a turnover central shaft, the cylinder body end of the hydraulic cylinder is installed on the base, the output end of the hydraulic cylinder is connected with the lifting device, the lifting device achieves pitching motion relative to the base under the pushing action of the hydraulic cylinder, the lifting platform is installed on the lifting device, and the lifting platform does linear reciprocating motion on the lifting device.

Further, the base include base frame, portal and hydro-cylinder tailstock, the base frame is square frame that square tube welding pieced together and forms, the equal fixed mounting of portal and hydro-cylinder tailstock on the base frame, the cylinder body end of pneumatic cylinder articulated on the hydro-cylinder tailstock, the portal top processing have a flange mount pad, the trip shaft seat adopts the flange mode to install the top at the portal.

Further, lift platform include material bag bracket, tray ejecting mechanism, chucking mechanism and compound roll guiding mechanism, material bag bracket is square bracket that square tube welding piece together formed, compound roll guiding mechanism is installed at the both ends of material bag bracket, material bag bracket realizes doing the straight line reciprocating sliding on elevating gear through compound roll guiding mechanism, material bag bracket on carry and to have tray ejecting mechanism, chucking mechanism install on material bag bracket, chucking mechanism is in the side of tray ejecting mechanism, chucking mechanism is used for the chucking to place the tray in material bag bracket top.

Further, the tray pushing-out mechanism comprises a supporting beam, a supporting vertical beam, a tray pushing-out speed reducing motor, a driving chain wheel, a driven chain wheel, a driving chain wheel shaft, a driven chain wheel shaft, a tray pushing plate and a chain, wherein two supporting beams arranged in parallel are arranged on the supporting vertical beam, the driven chain wheel is arranged at two ends of each supporting beam through the driven chain wheel shaft, the drive sprocket axle pass through the bearing frame and install the intermediate position at supporting beam, drive sprocket is installed at the both ends of drive sprocket axle, still installs the tray on the supporting beam and releases gear motor, gear motor's output and drive sprocket axle cooperation installation are released to the tray, the tray is released gear motor drive sprocket axle and is rotated, the chain is walked around drive sprocket and driven sprocket in proper order and is realized the installation, the tray push pedal horizontal on supporting beam, the installation is established with the chain to the tray push pedal.

Further, the chucking mechanism include chucking mechanism installation roof beam, the chucking motor, initiative chucking sprocket, driven chucking sprocket, drive chain, the chucking axle, fork board and chucking axle mount pad, chucking mechanism installation roof beam is installed on material bag bracket, the chucking axle is installed on the lateral wall of chucking mechanism installation roof beam through chucking axle mount pad, still install the chucking motor on the chucking mechanism installation roof beam, initiative chucking sprocket is installed to the output of chucking motor, driven chucking sprocket is installed to the tip of chucking axle, initiative chucking sprocket passes through drive chain cooperation installation with driven chucking sprocket, the chucking epaxial fork board of installing two "bending forms".

And the composite rolling guide mechanism comprises a rolling guide seat plate and rolling guide wheels, the rolling guide seat plate is fixedly arranged at two ends of the material bag bracket, and the rolling guide wheels are arranged on the rolling guide seat plate through shafts.

Further, the lifting device comprises a door beam, a driving lifting chain wheel, a driven lifting chain wheel, a lifting chain, a driving lifting chain wheel shaft, a driven lifting chain wheel shaft, a lifting speed reducing motor, a driving lifting bearing seat, a driven lifting bearing seat and a sliding baffle plate, wherein the driving lifting bearing seat is installed at the upper end of the door beam, the driving lifting chain wheel shaft is installed in the driving lifting bearing seat in a rotating manner, the driving lifting chain wheel is installed at two ends of the driving lifting chain wheel shaft, the driven lifting bearing seat is installed at the lower end of the door beam, the driven lifting chain wheel shaft is installed on the driven lifting bearing seat, the driven lifting chain wheel is installed on the driven lifting chain wheel shaft, the driving lifting chain wheel and the driven lifting chain wheel are installed through the lifting chain, the lifting speed reducing motor is installed on the side wall of the door beam, the output end of the lifting speed reducing motor is, the lifting platform is arranged in the slideway of the side wall of the portal beam through the composite rolling guide mechanism, the lifting chain is connected with the lifting platform, and the lifting chain drives the lifting platform to do linear motion on the portal beam.

The lifting device further comprises a lifting platform connecting seat, the lifting platform connecting seat is installed on a chain link of the lifting chain, and the lifting platform adopts the lifting platform connecting seat to establish a connection relation with the lifting chain.

The utility model discloses following beneficial effect has:

1. the utility model discloses a through a pure mechanical type mode, need not vacuum system and sucking disc and participate in, need not supporting buttress type visual identification system more, need not complicated operation process, adapt to various packing material belts on the existing market, its ability of breaking a jam is three to four times that the sucking disc of robot breaks a jam, and the farther super sucking disc of robot of adaptability breaks a jam;

2. the utility model discloses an what destack structure was ingenious has utilized chain drive mode to drive lift platform to combine under the dragging action of pneumatic cylinder, make the material bag receive under the action of gravity of self, the successive layer breaks away from the buttress and piles up, accomplishes the operation of destacking.

3. The base, the lifting platform, the lifting device, the hydraulic cylinder and the turnover shaft seat of the utility model have compact structural layout, reasonable design, simple and convenient installation and simple use mode, can adjust the unstacking angle and position of the lifting device according to actual conditions, and can complete the unstacking work with high efficiency;

4. the lifting platform of the utility model integrates the tray pushing-out function and the tray clamping function, thereby not only reducing the step of manually withdrawing the material bag tray in the using process, but also realizing the positioning and fastening of the tray, and improving the safety and automation degree of the whole disassembling process;

5. the utility model discloses be convenient for accomplish the work automation mechanized operation of breaking a jam, improve the efficiency of breaking a jam.

Drawings

FIG. 1 is a perspective view of an unstacker;

FIG. 2 is a front view of an unstacker;

FIG. 3 is a top view of an unstacker;

FIG. 4 is a left side view of an unstacker;

FIG. 5 is a perspective view of the base;

FIG. 6 is a state view of the lift platform in use;

FIG. 7 is a perspective view of the lift platform;

FIG. 8 is a perspective view of the compound rolling guide mechanism;

fig. 9 is a perspective view of the tray pushing-out mechanism;

fig. 10 is a perspective view of the chucking mechanism;

FIG. 11 is a perspective view of the elevator apparatus;

FIG. 12 is a first unstacking position of an unstacker;

FIG. 13 is a second illustration of an unstacker;

FIG. 14 is a third illustration of an unstacker;

wherein: 1 base, 2 lifting platform, 3 lifting device, 4 hydraulic cylinder, 5 turning shaft seat, 6 turning central shaft, 7 material bag, 8 pallet, 1-1 base frame, 1-2 portal frame, 1-3 oil cylinder tail seat, 2-1 material bag bracket, 2-2 pallet push-out mechanism, 2-3 clamping mechanism, 2-4 composite rolling guide mechanism, 2-2-1 supporting beam, 2-2-2 supporting vertical beam, 2-2-3 pallet push-out speed reducing motor, 2-2-4 driving chain wheel, 2-2-5 driven chain wheel, 2-2-6 driving chain wheel shaft, 2-2-7 driven chain wheel shaft, 2-2-8 pallet push plate, 2-2-9 chain, 2-3-1 clamping mechanism mounting beam, 2-3-2 clamping motor, 2-3-3 driving clamping chain wheel, 2-3-4 driven clamping chain wheel, 2-3-5 driving chain, 2-3-6 clamping shaft, 2-3-7 fork plate, 2-3-8 clamping shaft mounting seat, 2-4-1 rolling guide seat plate, 2-4-2 rolling guide wheel, 3-1 door beam, 3-2 driving lifting chain wheel, 3-3 driven lifting chain wheel, 3-4 lifting chain wheel, 3-5 driving lifting chain wheel shaft, 3-6 driven lifting chain wheel shaft, 3-7 lifting speed reducing motor, 3-8 driving lifting bearing seat, 3-9 driven lifting bearing seat, 3-10 slide plate, 3-11 slide way and 3-12 lifting platform connecting seat.

Detailed Description

The first embodiment is as follows: the unstacker of the embodiment is described by combining fig. 1-4 and fig. 12-14, and comprises a base 1, a lifting platform 2, a lifting device 3, a hydraulic cylinder 4 and a turning shaft seat 5, wherein the turning shaft seat 5 is installed on the base 1, the lifting device 3 is installed on the turning shaft seat 5 in a hinged mode through a turning central shaft 6, the cylinder body end of the hydraulic cylinder 4 is installed on the base 1, the output end of the hydraulic cylinder 4 is connected with the lifting device 3, the lifting platform 2 is installed on the lifting device 3, and the lifting platform 2 makes linear reciprocating motion on the lifting device 3. So set up, 3 articulated states of elevating gear of base 1 with are realized to turnover shaft seat 5, and under the impetus of pneumatic cylinder 4, elevating gear 3 can realize the luffing motion relative base 1, install lift platform 2 on elevating gear 3 and realize straight reciprocating motion on elevating gear 3, the working process of unstacking, place tray 8 intercommunication material bag 7 transportation on lift platform 2, the luffing angle of adjustment elevating gear 3, adjust the position of lift platform 2 on elevating gear 3 afterwards, under the self action of gravity of material bag 7, material bag 7 is split by the successive layer, whole unstacking process has used mechanical luffing motion, the lifting principle, and combine material bag 7 self gravity, ingenious completion unstacking operation.

The second embodiment is as follows: the unstacker is described by combining fig. 1 and fig. 5, the base 1 of the unstacker in the embodiment comprises a base frame 1-1, a portal 1-2 and an oil cylinder tail seat 1-3, the base frame 1-1 is a square frame formed by welding and splicing square pipes, the portal 1-2 and the oil cylinder tail seat 1-3 are both fixedly installed on the base frame 1-1, the cylinder body end of the hydraulic cylinder 4 is hinged to the oil cylinder tail seat 1-3, the top end of the portal 1-2 is provided with a flange installation seat, and the turnover shaft seat 5 is installed at the top end of the portal 1-2 in a flange mode. According to the arrangement, the base frame 1-1 is a square frame formed by welding and splicing square pipes, in order to enhance the structural strength of the base 1, a supporting beam and a rib plate can be additionally arranged inside the square frame, wherein the door frame 1-2 can be arranged on the base frame 1-1 in a welding mode and a bolt fastening mode.

The third concrete implementation mode: referring to fig. 1-4 and 6-9, the embodiment, an unstacker of the embodiment, the lifting platform 2 comprises a material bag bracket 2-1, a tray push-out mechanism 2-2, a clamping mechanism 2-3 and a composite rolling guide mechanism 2-4, the material bag bracket 2-1 is a square bracket formed by welding and splicing square pipes, the composite rolling guide mechanism 2-4 is arranged at two ends of the material bag bracket 2-1, the material bag bracket 2-1 realizes the linear reciprocating sliding on the lifting device 3 through the composite rolling guide mechanism 2-4, the material bag bracket 2-1 is provided with a tray push-out mechanism 2-2, the clamping mechanism 2-3 is arranged on the material bag bracket 2-1, and the clamping mechanism 2-3 is arranged on the side surface of the tray push-out mechanism 2-2. According to the arrangement, the lifting platform 2 comprises a tray pushing mechanism 2-2 for pushing out the tray 8 after unstacking and a clamping mechanism 2-3 for locking the tray 8 in the unstacking process, all mechanical structures of the lifting platform 2 are determined according to labor division, independent mechanical actions are completed, the tray pushing mechanism 2-2 acts rapidly and stably, and the clamping mechanism 2-3 clamps flexibly and reliably.

The fourth concrete implementation mode: the embodiment is described with reference to fig. 7-9, and the tray pushing-out mechanism 2-2 of the embodiment comprises a supporting beam 2-2-1, a supporting vertical beam 2-2-2, a tray pushing-out speed reduction motor 2-2-3, a driving sprocket 2-2-4, a driven sprocket 2-2-5, a driving sprocket shaft 2-2-6, a driven sprocket shaft 2-2-7, a tray push plate 2-2-8 and a chain 2-2-9, wherein the supporting vertical beam 2-2-2 is provided with two supporting beams 2-2-1 which are arranged in parallel, two ends of each supporting beam 2-2-1 are provided with the driven sprockets 2-2-5 through the driven sprocket shafts 2-2-7, the driving chain wheel shaft 2-2-6 is arranged in the middle of the supporting beam 2-2-1 through a bearing seat, the driving chain wheel 2-2-4 is arranged at two ends of the driving chain wheel shaft 2-2-6, the supporting beam 2-2-1 is also provided with a tray pushing-out reducing motor 2-2-3, the output end of the tray pushing-out reducing motor 2-2-3 is matched with the driving chain wheel shaft 2-2-6 for installation, the tray pushing-out reducing motor 2-2-3 drives the driving chain wheel shaft 2-2-6 to rotate, the chain 2-2-9 sequentially bypasses the driving chain wheel 2-2-4 and the driven chain wheel 2-2-5 for installation, and the tray push plate 2-2-8 is transversely arranged on the supporting beam 2-2-1, the tray push plate 2-2-8 and the chain 2-2-9 are installed. According to the arrangement, the supporting beam 2-2-1 provides a supporting guide rail for the whole tray pushing-out mechanism 2-2, the chain transmission mechanism arranged on the supporting beam 2-2-1 forms the driving of the tray pushing-out mechanism, when in use, the tray is driven to push out the speed reducing motor 2-2-3, the tray pushing-out speed reducing motor 2-2-3 drives the driving chain wheel shaft 2-2-6 to rotate, the driven chain wheel shaft 2-2-7 synchronously rotates under the action of the driving chain wheel shaft 2-2-6 and the chain 2-2-9, the tray push plate 2-2-8 arranged on the chain 2-2-9 reciprocates on the supporting beam 2-2-1, and the whole tray pushing-out mechanism 2-2 stably operates under the action of chain transmission, huge vibration cannot occur, and meanwhile, the tray 8 left after unstacking is guaranteed to be pushed out ingeniously.

The fifth concrete implementation mode: the embodiment is described by combining with figures 7 and 10, and the unstacker of the embodiment comprises a clamping mechanism mounting beam 2-3-1, a clamping motor 2-3-2, a driving clamping chain wheel 2-3-3, a driven clamping chain wheel 2-3-4, a transmission chain 2-3-5, a clamping shaft 2-3-6, a fork plate 2-3-7 and a clamping shaft mounting seat 2-3-8, wherein the clamping mechanism mounting beam 2-3-1 is mounted on a material bag bracket 2-1, the clamping shaft 2-3-6 is mounted on the side wall of the clamping mechanism mounting beam 2-3-1 through the clamping shaft mounting seat 2-3-8, the clamping motor 2-3-2 is further mounted on the clamping mechanism mounting beam 2-3-1, the output end of the clamping motor is provided with a driving clamping chain wheel 2-3-3, the end part of the clamping shaft 2-3-6 is provided with a driven clamping chain wheel 2-3-4, the driving clamping chain wheel 2-3-3 and the driven clamping chain wheel 2-3-4 are installed in a matched mode through a transmission chain 2-3-5, and the clamping shaft 2-3-6 is provided with two bent fork plates 2-3-7. With such arrangement, the working principle of the clamping mechanism 2-3 is that when the clamping motor 2-3-2 rotates, the clamping motor 2-3-2 drives the driving clamping chain wheel 2-3-3 to rotate, driven by a transmission chain 2-3-5, a driven clamping chain wheel 2-3-4 drives a clamping shaft 2-3-6 arranged in a clamping shaft mounting seat 2-3-8 to rotate, at the moment, two bent fork plates 2-3-7 arranged on the clamping shaft 2-3-6 are clamped into a socket of a tray 8 (an opening on the tray 8 is used for insertion of a forklift), a clamping mechanism 2-3 acts quickly and agilely, the tray 8 can be effectively fixed in the process of disassembly so as to prevent the tray 8 from moving in the lifting platform and influencing the unstacking effect.

The sixth specific implementation mode: the embodiment is described with reference to fig. 1, 6-8, and the composite rolling guide mechanism 2-4 of the unstacker of the embodiment comprises a rolling guide seat plate 2-4-1 and a rolling guide wheel 2-4-2, wherein the rolling guide seat plate 2-4-1 is fixedly arranged at two ends of the material bag bracket 2-1, and the rolling guide wheel 2-4-2 is arranged on the rolling guide seat plate 2-4-1 through a shaft. By the arrangement, the composite rolling guide mechanism 2-4 provides a structural support for the linear sliding of the lifting platform 2 in the lifting device 3, the structural support is a stable sliding fulcrum, and under the action of the rolling guide wheel 2-4-2, the lifting platform 2 has good running buffering effect, runs stably and reliably, and is stably and stably unstacked.

The seventh embodiment: the unstacker of the embodiment is described by combining the figures 1-4 and 11, wherein the lifting device 3 comprises a door beam 3-1, a driving lifting chain wheel 3-2, a driven lifting chain wheel 3-3, a lifting chain 3-4, a main lifting chain wheel shaft 3-5, a driven lifting chain wheel shaft 3-6, a lifting speed reduction motor 3-7, a driving lifting bearing seat 3-8, a driven lifting bearing seat 3-9 and a sliding baffle 3-10, the upper end of the door beam 3-1 is provided with the driving lifting bearing seat 3-8, the driving lifting bearing seat 3-8 is internally provided with the main lifting chain wheel shaft 3-5 in a rotating way, the two ends of the main lifting chain wheel shaft 3-5 are provided with the driving lifting chain wheel 3-2, the lower end of the door beam 3-1 is provided with the driven lifting bearing seat 3-9, a driven lifting chain wheel shaft 3-6 is installed on a driven lifting bearing seat 3-9, a driven lifting chain wheel 3-3 is installed on the driven lifting chain wheel shaft 3-6, a driving lifting chain wheel 3-2 and the driven lifting chain wheel 3-3 are installed through a lifting chain 3-4, a lifting speed reducing motor 3-7 is installed on the side wall of the door beam 3-1, the output end of the lifting speed reducing motor 3-7 is installed in a matching mode with the main lifting chain wheel shaft 3-5, the sliding baffle 3-10 is laid on the door beam 3-1, a slideway 3-11 is arranged on the left side wall and the right side wall of the door beam 3-1, a lifting platform 2 is installed in the slideway 3-11 on the side wall of the door beam 3-1 through a composite rolling guide mechanism 2-4, and the lifting chain 3-4 is connected with the lifting platform 2, the lifting chain 3-4 drives the lifting platform 2 to do linear motion on the door beam 3-1. According to the arrangement, the lifting device 3 is used for driving the lifting platform 2 to realize linear motion, and the lifting device is structurally characterized in that under the action of a lifting speed reducing motor 3-7, a lifting sprocket shaft 3-5 drives a driving lifting sprocket 3-2 to rotate, a driven lifting sprocket 3-3 rotates under the action of a lifting chain 3-4, the lifting platform 2 is connected with the lifting chain 3-4, and the lifting chain 3-4 is used for driving the lifting platform 2 to realize vertical sliding on a portal beam 3-1.

The specific implementation mode is eight: referring to fig. 11, the embodiment is described, and the lifting device 3 of the embodiment further includes lifting platform connecting seats 3-12, the lifting platform connecting seats 3-12 are installed on the links of the lifting chains 3-4, and the lifting platform 2 adopts the lifting platform connecting seats 3-12 to establish a connection relationship with the lifting chains 3-4.

An unstacker, the unstacking principle of which is:

firstly, placing single-stack material bag stack cargos stacked on a tray according to a certain grouping rule on a lifting platform 2 of a unstacker by using a forklift, and driving away from a dangerous area by a forklift driver; secondly, pressing down a stack placing confirmation button on a hand-held remote controller, starting a clamping mechanism 2-3 arranged on the lifting platform 2, closing a fork plate 2-3-7 (a tray fork), locking and positioning the tray and stacked goods, and connecting the process with a stacking conveying system or a three-dimensional warehouse delivery system to finish automatic stacking and realize unmanned control; and thirdly, driving a hydraulic cylinder 4 to enable the lifting device 3 to overturn to a preset angle together with the goods stack, enabling the lifting platform 2 to ascend to the plane on the stack together with the piled goods to be close to the chute plate plane of the chute baffle plate in the overturning process, after the overturning is in place, enabling the stack to ascend by one unit height every time, and completing the operation of unstacking layer by layer due to the fact that material bags exceeding the baffle plate slide to the material receiving area of the lane divider along the chute plate under the action of gravity.

This embodiment is only illustrative of the patent and does not limit the scope of protection thereof, and those skilled in the art can make modifications to its part without departing from the spirit of the patent.

Claims (8)

1. An unstacker machine, characterized in that: including base (1), lift platform (2), elevating gear (3), pneumatic cylinder (4) and trip shaft seat (5), install turnover shaft seat (5) on base (1), elevating gear (3) are articulated to be installed on turnover shaft seat (5) through upset center pin (6), the cylinder body end of pneumatic cylinder (4) install on base (1), the output and the elevating gear (3) of pneumatic cylinder (4) are established and are connected, lift platform (2) install on elevating gear (3), straight reciprocating motion is done on elevating gear (3) in lift platform (2).

2. An unstacker according to claim 1, characterised in that: the base (1) comprises a base frame (1-1), a portal (1-2) and an oil cylinder tailstock (1-3), the base frame (1-1) is a square frame formed by splicing square pipes in a welded mode, the portal (1-2) and the oil cylinder tailstock (1-3) are fixedly installed on the base frame (1-1), the cylinder body end of the hydraulic cylinder (4) is hinged to the oil cylinder tailstock (1-3), a flange mounting seat is machined at the top end of the portal (1-2), and the overturning shaft seat (5) is installed at the top end of the portal (1-2) in a flange mode.

3. An unstacker according to claim 1, characterised in that: the lifting platform (2) comprises a material bag bracket (2-1), a tray pushing mechanism (2-2), a clamping mechanism (2-3) and a composite rolling guide mechanism (2-4), the material bag bracket (2-1) is a square bracket formed by splicing square tubes in a welding manner, the composite rolling guide mechanism (2-4) is arranged at two ends of the material bag bracket (2-1), the material bag bracket (2-1) can linearly and reciprocally slide on the lifting device (3) through the composite rolling guide mechanism (2-4), the material bag bracket (2-1) is provided with a tray pushing-out mechanism (2-2), the clamping mechanism (2-3) is arranged on the material bag bracket (2-1), and the clamping mechanism (2-3) is arranged on the side surface of the tray pushing-out mechanism (2-2).

4. An unstacker according to claim 3, characterized in that: the tray push-out mechanism (2-2) comprises a supporting cross beam (2-2-1), a supporting vertical beam (2-2-2), a tray push-out speed reducing motor (2-2-3), a driving chain wheel (2-2-4), a driven chain wheel (2-2-5), a driving chain wheel shaft (2-2-6), a driven chain wheel shaft (2-2-7), a tray push plate (2-2-8) and a chain (2-2-9), wherein the supporting vertical beam (2-2-2) is provided with two supporting cross beams (2-2-1) which are arranged in parallel, the two ends of each supporting cross beam (2-2-1) are provided with the driven chain wheels (2-2-5), and the driving chain wheel shaft (2-2-6) is arranged on the supporting cross beams (2-2-1) through a bearing seat ) In the middle position, two ends of a driving sprocket shaft (2-2-6) are provided with driving sprockets (2-2-4), a supporting beam (2-2-1) is also provided with a tray pushing reducing motor (2-2-3), the output end of the tray pushing reducing motor (2-2-3) is matched with the driving sprocket shaft (2-2-6) for installation, the tray pushing reducing motor (2-2-3) drives the driving sprocket shaft (2-2-6) to rotate, a chain (2-2-9) sequentially bypasses the driving sprocket (2-2-4) and a driven sprocket (2-2-5) for installation, and a tray push plate (2-2-8) is transversely arranged on the supporting beam (2-2-1), the tray push plate (2-2-8) and the chain (2-2-9) are installed.

5. An unstacker according to claim 3, characterized in that: the clamping mechanism (2-3) comprises a clamping mechanism mounting beam (2-3-1), a clamping motor (2-3-2), a driving clamping chain wheel (2-3-3), a driven clamping chain wheel (2-3-4), a transmission chain (2-3-5), a clamping shaft (2-3-6), a fork plate (2-3-7) and a clamping shaft mounting seat (2-3-8), the clamping mechanism mounting beam (2-3-1) is mounted on the material bag bracket (2-1), the clamping shaft (2-3-6) is mounted on the side wall of the clamping mechanism mounting beam (2-3-1) through the clamping shaft mounting seat (2-3-8), the clamping mechanism mounting beam (2-3-1) is further provided with the clamping motor (2-3-2), the output end of the clamping motor is provided with a driving clamping chain wheel (2-3-3), the end part of the clamping shaft (2-3-6) is provided with a driven clamping chain wheel (2-3-4), the driving clamping chain wheel (2-3-3) and the driven clamping chain wheel (2-3-4) are installed in a matched mode through a transmission chain (2-3-5), and the clamping shaft (2-3-6) is provided with two bent fork plates (2-3-7).

6. An unstacker according to claim 3, characterized in that: the composite rolling guide mechanism (2-4) comprises a rolling guide seat plate (2-4-1) and rolling guide wheels (2-4-2), the rolling guide seat plate (2-4-1) is fixedly arranged at two ends of the material bag bracket (2-1), and the rolling guide wheels (2-4-2) are arranged on the rolling guide seat plate (2-4-1) through shafts.

7. An unstacker according to claim 3, characterized in that: the lifting device (3) comprises a door beam (3-1), a driving lifting chain wheel (3-2), a driven lifting chain wheel (3-3), a lifting chain (3-4), a driving lifting chain wheel shaft (3-5), a driven lifting chain wheel shaft (3-6), a lifting speed reducing motor (3-7), a driving lifting bearing seat (3-8), a driven lifting bearing seat (3-9) and a sliding baffle (3-10), wherein the driving lifting bearing seat (3-8) is installed at the upper end of the door beam (3-1), the driving lifting chain wheel shaft (3-5) is rotatably installed in the driving lifting bearing seat (3-8), the driving lifting chain wheel (3-2) is installed at two ends of the driving lifting chain wheel shaft (3-5), the driven lifting bearing seat (3-9) is installed at the lower end of the door beam (3-1), a driven lifting chain wheel shaft (3-6) is installed on a driven lifting bearing seat (3-9), a driven lifting chain wheel (3-3) is installed on the driven lifting chain wheel shaft (3-6), a driving lifting chain wheel (3-2) and the driven lifting chain wheel (3-3) are installed through a lifting chain (3-4), a lifting speed reducing motor (3-7) is installed on the side wall of a door beam (3-1), the output end of the lifting speed reducing motor (3-7) is installed with a main lifting chain wheel shaft (3-5) in a matched mode, a sliding baffle (3-10) is laid on the door beam (3-1), a slide way (3-11) is arranged on the left side wall and the right side wall of the door beam (3-1), and a lifting platform (2) is installed on the slide way (3-11) on the side wall of the door beam (3-1) through a composite rolling guide mechanism (2-4) ) And the lifting chain (3-4) is connected with the lifting platform (2), and the lifting chain (3-4) drives the lifting platform (2) to do linear motion on the portal beam (3-1).

8. An unstacker according to claim 7, characterized in that: the lifting device (3) further comprises lifting platform connecting seats (3-12), the lifting platform connecting seats (3-12) are installed on chain links of the lifting chains (3-4), and the lifting platform (2) adopts the lifting platform connecting seats (3-12) to establish a connection relation with the lifting chains (3-4).

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