Feeding automatic limiting stacking machine

Abstract

The invention mainly relates to the technical field of stacking machines, in particular to a feeding automatic limiting stacking machine which comprises a vehicle body running according to a preset track of a warehouse, a mounting support is fixedly mounted at the top of the vehicle body, a lifting mechanism and a lifting support driven by the lifting mechanism to ascend and descend are arranged on the mounting support, and a telescopic mechanism is arranged on the lifting support. The two pallet forks are driven by the telescopic mechanism to stretch out and draw back in the horizontal direction, first limiting mechanisms are arranged on the tops of the two pallet forks, and second limiting mechanisms are arranged on the two sides of the two pallet forks; the first limiting mechanism and the second limiting mechanism are in transmission connection with the telescopic mechanism, when the telescopic mechanism drives the two pallet forks to extend towards the outer side, the two limiting mechanisms move in the direction away from the two pallet forks, and when the telescopic mechanism drives the two pallet forks to contract towards the inner side, the two limiting mechanisms move in the direction close to the pallet forks. When the two pallet forks take goods and move towards the inner side, the first limiting mechanism can limit the top of the goods, and the second limiting mechanism can limit the two sides of the goods.

Description

Technical Field

[0001] The invention mainly relates to the technical field of stackers, and in particular to an automatic loading and limiting stacker. Background Art

[0002] A stacker is a special crane widely used in warehouses, workshops and other places. It is mainly used for the storage and retrieval of goods in automated warehouses. It grabs, transports and stacks unit goods through picking devices such as forks or skewers. It uses the walking mechanism to walk horizontally on the lower guide rail, the lifting mechanism to achieve vertical lifting, and the fork telescopic mechanism to complete horizontal extension. The frame serves as the main structure to support and connect various mechanisms and components. The various mechanisms move in coordination to achieve accurate storage and retrieval of goods. The application of stackers can greatly improve the storage capacity and operating efficiency of warehouses, reduce the labor intensity of workers, improve the utilization and turnover rate of warehouses, and reduce safety risks. At the same time, stackers have the advantages of high precision, high reliability, and easy maintenance. They are indispensable and important equipment in modern logistics warehousing.

[0003] After the existing stacker picks up the goods with the fork, there is no limit mechanism to limit the goods, and there is a risk of the goods falling during transportation. Some stackers are also equipped with a limit plate driven by a cylinder to limit the goods. Multiple driving cylinders are required, and the electrical control system is required to receive instructions, and the overall cost is high. Summary of the invention

[0004] 1. Technical problem to be solved by the invention: The present invention provides a material loading automatic limiting stacker, which is used to solve the technical problems existing in the above-mentioned background technology.

[0005] 2. Technical solution: To achieve the above object, the technical solution provided by the present invention is as follows: a loading automatic limit stacker, comprising a vehicle body that travels along a predetermined track of a warehouse, a mounting bracket fixedly mounted on the top of the vehicle body, a lifting mechanism and a lifting bracket driven to lift by the lifting mechanism are arranged on the mounting bracket, a telescopic mechanism and two forks driven to extend and retract in a horizontal direction by the telescopic mechanism are arranged on the lifting bracket, a first limit mechanism is arranged on the top of the two forks, and second limit mechanisms are arranged on both sides; The first limiting mechanism and the second limiting mechanism are transmission-connected with the telescopic mechanism. When the telescopic mechanism drives the two forks to extend outward, the two limiting mechanisms both move in a direction away from the two forks. When the telescopic mechanism drives the two forks to retract inward, the two limiting mechanisms both move in a direction close to the forks.

[0006] Furthermore, the lifting mechanism includes a lifting cylinder mounted on the top of the mounting bracket, the output end of the lifting cylinder is fixedly connected to a first rotating bracket, a sprocket is rotatably mounted on the first rotating bracket, a chain is mounted on the sprocket, one end of the chain is connected to a connecting plate provided on the mounting bracket, and the other end is connected to the lifting bracket, a first slider is provided on one side of the lifting bracket, and the first slider is slidably connected to a first sliding groove opened in a vertical direction on the mounting bracket.

[0007] Furthermore, the telescopic mechanism includes a guide sliding bracket and a movable plate, a first sliding rod extending in the horizontal direction is symmetrically arranged on one side of the movable plate, the first sliding rod is slidably connected to the guide sliding bracket, the guide sliding bracket is fixedly installed on the top of the lifting bracket, and is equipped with a telescopic cylinder that can be telescoped in the horizontal direction, the output end of the telescopic cylinder is fixedly connected to the movable plate, and the movable plate and the fork are connected through a distance adjustment mechanism.

[0008] Furthermore, the distance adjustment mechanism includes a first slide rail fixedly mounted on the movable plate, a dual-axis motor is installed in the first slide rail, and two output ends of the dual-axis motor are provided with a first screw rod, the thread directions of the two first screw rods are opposite, and both are threadedly connected with a second slider, and the two second sliders are slidably mounted in the first slide rail and are respectively fixedly connected to the two forks.

[0009] Furthermore, the first limiting mechanism includes a first limiting plate and a guide slide fixedly mounted on the lifting bracket, the first limiting plate is L-shaped, and the vertical portion is slidably connected to the guide slide, an inclined block is provided at the bottom of the vertical portion of the first limiting plate, the inclined block is slidably mounted in the second slide rail, the second slide rail is inclined downward, and the bottom is fixedly connected to the movable plate through a connecting member.

[0010] Furthermore, a second slide groove extending in the vertical direction is provided at the bottom of the vertical portion of the first limit plate, and a first limit hole connected to the first limit plate is provided on the side wall, a telescopic plate is slidably installed in the second slide groove, the end of the telescopic plate is fixedly connected to the inclined block, and second limit holes linearly arranged in the vertical direction are provided on the side wall, and a limit pin is inserted into the first limit hole and one of the second limit holes.

[0011] Furthermore, the second limiting mechanism includes an extrusion mechanism, and a linkage plate driven by the extrusion mechanism to slide in a through groove opened at the top of the lifting bracket, both sides of the linkage plate are hingedly connected with connecting rods, the other end of the connecting rod is hingedly connected with a connecting block, the connecting block is slidably mounted on the guide slide rod, the guide slide rod is fixedly mounted on a fixed bracket arranged on the lifting bracket, the connecting block is fixedly mounted with a limiting mounting plate, and the limiting mounting plate is located on one side of the fork.

[0012] Furthermore, the extrusion mechanism includes a second rotating bracket arranged on the guide sliding bracket, a transmission rod is rotatably installed on the second rotating bracket, a gear is coaxially arranged on the transmission rod and a disc is eccentrically arranged, the gear is meshed with a toothed plate extending in a horizontal direction on the movable plate, and a spring is arranged on the linkage plate to drive the abutment plate arranged on the top of the linkage plate to abut against the side wall of the disc.

[0013] Furthermore, a second limit plate is provided on the side of the limit mounting plate close to the fork, a connecting sleeve is fixedly installed on the second limit plate, and is slidingly connected to the limit mounting plate through a symmetrically distributed second sliding rod, a second screw rod is rotatably connected to the limit mounting plate, and the second screw rod is threadedly connected to the connecting sleeve.

[0014] 3. Beneficial effects: The technical solution provided by the present invention has the following beneficial effects compared with the prior art: when the two forks move inward after picking up the goods, the horizontal part of the first limiting plate will move downward on the top of the two forks to limit the top of the goods, and at the same time, the two second mounting plates will approach each other to limit the two sides of the goods, thereby achieving automatic limiting of the top and both sides of the goods to prevent the goods from accidentally falling off during transportation, and the entire limiting process is mechanically driven, without the need for an additional drive source control system, thereby reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the lifting mechanism structure of the present invention; Figure 3 It is a schematic diagram of the connection structure of the lifting bracket of the present invention; Figure 4 It is a schematic structural diagram of the telescopic mechanism and the second limiting mechanism of the present invention; Figure 5 It is a schematic diagram of the structure of the distance adjustment mechanism of the present invention; Figure 6 It is a schematic diagram of the connection structure of the limiting mounting plate and the second limiting plate of the present invention; Figure 7 It is a schematic structural diagram of the first limiting mechanism of the present invention; Figure 8 It is a schematic diagram of the structure of the first limiting plate and the telescopic plate link structure of the present invention.

[0016] Reference numerals: 1. Car body; 2. Mounting bracket; 3. Lifting mechanism; 300. Lifting cylinder; 301. First rotating bracket; 302. Sprocket; 303. Chain; 304. Connecting plate; 305. First slider; 306. First slideway; 4. Lifting bracket; 5. Telescopic mechanism; 500. Guide slide bracket; 501. Movable plate; 502. First sliding rod; 503. Telescopic cylinder; 504. First slide rail; 505. Dual-axis motor; 506. First screw rod; 507. Second slider; 6. Fork; 7. First limit mechanism; 700. Guide slide plate; 701. First limit plate; 702. Bevel block; 703. Second slide rail; 704, connecting piece; 705, second slide groove; 706, telescopic plate; 707, first limiting hole; 708, second limiting hole; 709, limiting pin; 8, second limiting mechanism; 800, linkage plate; 801, connecting rod; 802, connecting block; 803, limiting mounting plate; 804, guide slide rod; 805, fixed bracket; 806, second rotating bracket; 807, transmission rod; 808, gear; 809, tooth plate; 810, disc; 811, abutment plate; 812, spring; 813, second sliding rod; 814, second limiting plate; 815, connecting sleeve; 816, second screw rod. DETAILED DESCRIPTION

[0017] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0018] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "page", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0019] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0020] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", "provided with", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] Example: See attached Figure 1-8 A stacker with automatic limit loading includes a vehicle body 1 that travels along a predetermined track of a warehouse, a mounting bracket 2 is fixedly mounted on the top of the vehicle body 1, a lifting mechanism 3 is arranged on the mounting bracket 2, and a lifting bracket 4 driven to lift by the lifting mechanism 3 is arranged on the lifting bracket 4, a telescopic mechanism 5 is arranged on the lifting bracket 4, and two forks 6 that are driven to extend and retract in a horizontal direction by the telescopic mechanism 5, and a first limit mechanism 7 is arranged on the top of the two forks 6, and a second limit mechanism 8 is arranged on both sides; The first limiting mechanism 7 and the second limiting mechanism 8 are transmission connected to the telescopic mechanism 5. When the telescopic mechanism 5 drives the two forks 6 to extend outward, the two limiting mechanisms move in the direction away from the two forks 6. When the telescopic mechanism 5 drives the two forks 6 to retract inward, the two limiting mechanisms move in the direction close to the forks 6.

[0022] In this embodiment, the lifting mechanism 3 drives the lifting bracket 4, and then cooperates with the telescopic mechanism 5 to drive the two forks 6 to extend and retract in the horizontal direction, so as to realize the transportation and stacking of goods. When the telescopic mechanism 5 drives the two forks 6 to extend outward, the first limiting mechanism 7 will move upward, and the second limiting mechanism 8 will move outward, forming sufficient space between the two forks 6 for picking up or putting goods. When the telescopic mechanism 5 drives the two forks 6 to retract outward, the first limiting mechanism 7 will move downward, and the second limiting mechanism 8 will move inward, which are respectively used to limit the top and both sides of the goods, thereby preventing the goods from accidentally falling during transportation.

[0023] The lifting mechanism 3 includes a lifting cylinder 300 mounted on the top of the mounting bracket 2, and the output end of the lifting cylinder 300 is fixedly connected to a first rotating bracket 301, a sprocket 302 is rotatably mounted on the first rotating bracket 301, and a chain 303 is mounted on the sprocket 302, one end of the chain 303 is connected to a connecting plate 304 provided on the mounting bracket 2, and the other end is connected to the lifting bracket 4, and a first slider 305 is provided on one side of the lifting bracket 4, and the first slider 305 is slidably connected to a first slide groove 306 opened in the vertical direction on the mounting bracket 2.

[0024] In this embodiment, after the lifting cylinder 300 is started, it can drive the first rotating bracket 301 to rise and fall. During the lifting process, the first rotating bracket 301 transmits power between the sprocket 302 and the chain 303, and the lifting bracket 4 can be pulled by the chain 303. The lifting bracket 4 cooperates with the sliding connection between the first slider 305 and the first slide groove 306 to realize the lifting movement.

[0025] The telescopic mechanism 5 includes a guide sliding bracket 500 and a movable plate 501. A first sliding rod 502 extending in the horizontal direction is symmetrically arranged on one side of the movable plate 501. The first sliding rod 502 is slidably connected to the guide sliding bracket 500. The guide sliding bracket 500 is fixedly installed on the top of the lifting bracket 4 and is equipped with a telescopic cylinder 503 that can be telescoped in the horizontal direction. The output end of the telescopic cylinder 503 is fixedly connected to the movable plate 501. The movable plate 501 and the fork 6 are connected through a distance adjustment mechanism.

[0026] The distance adjustment mechanism includes a first slide rail 504 fixedly mounted on a movable plate 501, a dual-axis motor 505 is installed in the first slide rail 504, and both output ends of the dual-axis motor 505 are provided with a first screw rod 506, the thread directions of the two first screw rods 506 are opposite, and both are threadedly connected with a second slider 507, and the two second sliders 507 are both slidably mounted in the first slide rail 504 and are respectively fixedly connected to the two forks 6.

[0027] In this embodiment, after starting the telescopic cylinder 503, the movable plate 501 can be driven to move in the horizontal direction, and the two forks 6 keep moving synchronously for transporting the goods, and the sliding connection between the first sliding rod 502 and the guide sliding bracket 500 can make the movement process smoother. After starting the dual-axis motor 505, the two first screw rods 506 with opposite thread directions rotate synchronously, which can drive the two second sliders 507 to slide relative to each other in the first slide rail 504. The two forks 6 keep moving synchronously, and the distance between them can be adjusted for transporting goods of different sizes.

[0028] The first limiting mechanism 7 includes a first limiting plate 701 and a guide slide 700 fixedly mounted on the lifting bracket 4. The first limiting plate 701 is L-shaped, and the vertical portion is slidably connected to the guide slide 700. An inclined block 702 is provided at the bottom of the vertical portion of the first limiting plate 701. The inclined block 702 is slidably mounted in the second slide rail 703. The second slide rail 703 is inclined downward, and the bottom is fixedly connected to the movable plate 501 through a connecting member 704.

[0029] In this embodiment, when the telescopic cylinder 503 drives the two forks 6 to move outward to pick up or put down the goods, the second slide rail 703 keeps moving synchronously, and the inclined block 702 slides in the second slide rail 703, which can drive the vertical part of the first limit plate 701 to slide upward on the guide slide plate 700, and the horizontal part of the first limit plate 701 moves upward synchronously on the top of the two forks 6, which can release the limit on the top of the goods to facilitate putting down the goods, or form enough space with the top of the forks 6 for picking up the goods. Similarly, when the two forks 6 move inward after picking up the goods, the horizontal part of the first limit plate 701 will move downward on the top of the two forks 6, which can automatically limit the top of the goods.

[0030] A second slide groove 705 extending in the vertical direction is provided at the bottom of the vertical portion of the first limiting plate 701, and a first limiting hole 707 connected thereto is provided on the side wall, a telescopic plate 706 is slidably installed in the second slide groove 705, an end of the telescopic plate 706 is fixedly connected to the inclined block 702, and second limiting holes 708 linearly arranged in the vertical direction are provided on the side wall, and a limiting pin 709 is inserted into the first limiting hole 707 and one of the second limiting holes 708.

[0031] In this embodiment, after the telescopic plate 706 slides in the second slide groove 705, when one of its second limiting holes 708 is aligned with the first limiting hole 707, the limiting pin 709 is inserted into the two limiting holes to lock the telescopic plate 706. Similarly, it can be locked in other positions, thereby changing the limiting height of the horizontal part of the first limiting plate 701, which is used to limit the top of goods at different heights.

[0032] The second limiting mechanism 8 includes an extrusion mechanism and a linkage plate 800 driven by the extrusion mechanism to slide in a through groove opened at the top of the lifting bracket 4. Both sides of the linkage plate 800 are hingedly connected with connecting rods 801. The other end of the connecting rod 801 is hingedly connected with a connecting block 802. The connecting block 802 is slidably installed on a guide slide rod 804. The guide slide rod 804 is fixedly installed on a fixed bracket 805 provided on the lifting bracket 4. A limiting mounting plate 803 is fixedly installed on the connecting block 802. The limiting mounting plate 803 is located on one side of the fork 6.

[0033] The extrusion mechanism includes a second rotating bracket 806 arranged on the guide sliding bracket 500, and a transmission rod 807 is rotatably installed on the second rotating bracket 806. A gear 808 is coaxially arranged on the transmission rod 807, and a disc 810 is eccentrically arranged. The gear 808 is meshed with a tooth plate 809 extending in the horizontal direction on the movable plate 501. A spring 812 is arranged on the linkage plate 800, which is used to drive the abutment plate 811 arranged on the top of the linkage plate 800 to abut against the side wall of the disc 810.

[0034] In this embodiment, when the telescopic cylinder 503 drives the two forks 6 to move outward to pick up or release goods, the tooth plate 809 maintains synchronous movement, and can drive the transmission rod 807 to rotate by meshing with the gear 808. The eccentrically arranged disc 810 rotates eccentrically, and the pressing plate 811 cooperates with the spring 812, which can drive the linkage plate 800 to slide downward in the through groove opened on the top of the lifting bracket 4, and the connecting rod 801 stretches the connecting block 802 outward, and the connecting block 802 slides outward on the guide slide rod 804. The limit mounting plate 803 moves synchronously away from the side of the fork 6, which can release the limit on both sides of the goods to facilitate releasing the goods, or form enough space with both sides of the fork 6 for picking up goods. Similarly, when the two forks 6 move inward after picking up the goods, the limit mounting plate 803 will move to the side close to the fork 6, which can automatically limit the two sides of the goods.

[0035] A second limiting plate 814 is provided on the side of the limiting mounting plate 803 close to the fork 6, a connecting sleeve 815 is fixedly mounted on the second limiting plate 814, and the second limiting plate 814 is slidingly connected to the limiting mounting plate 803 through a symmetrically distributed second sliding rod 813, a second screw rod 816 is rotatably connected to the limiting mounting plate 803, and the second screw rod 816 is threadedly connected to the connecting sleeve 815.

[0036] In this embodiment, after rotating the handle at the end of the second screw rod 816, and then cooperating with the sliding connection between the second sliding rod 813 and the limiting mounting plate 803, the position of the second limiting plate 814 can be adjusted to limit the two sides of goods of different widths.

[0037] The above-described embodiments only express a certain implementation mode of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the patent scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A stacker with automatic loading and limiting position, comprising a vehicle body (1) that moves along a predetermined trajectory in a warehouse, characterized in that: A mounting bracket (2) is fixedly mounted on the top of the vehicle body (1); a lifting mechanism (3) is arranged on the mounting bracket (2); and a lifting bracket (4) driven to be lifted and lowered by the lifting mechanism (3); a telescopic mechanism (5) is arranged on the lifting bracket (4); and two forks (6) driven to be extended and retracted in a horizontal direction by the telescopic mechanism (5); a first limiting mechanism (7) is arranged on the top of the two forks (6), and second limiting mechanisms (8) are arranged on both sides; The first limiting mechanism (7) and the second limiting mechanism (8) are transmission-connected to the telescopic mechanism (5); when the telescopic mechanism (5) drives the two forks (6) to extend outward, the two limiting mechanisms both move in a direction away from the two forks (6); and when the telescopic mechanism (5) drives the two forks (6) to retract inward, the two limiting mechanisms both move in a direction close to the forks (6); The telescopic mechanism (5) comprises a guide slide bracket (500) and a movable plate (501); a first sliding rod (502) extending in the horizontal direction is symmetrically arranged on one side of the movable plate (501); the first sliding rod (502) is slidably connected to the guide slide bracket (500); the guide slide bracket (500) is fixedly mounted on the top of the lifting bracket (4) and is equipped with a telescopic cylinder (503) that telescopes in the horizontal direction; an output end of the telescopic cylinder (503) is fixedly connected to the movable plate (501); and the movable plate (501) and the fork (6) are connected via a distance adjustment mechanism; The first limiting mechanism (7) comprises a first limiting plate (701) and a guide slide plate (700) fixedly mounted on the lifting bracket (4); the first limiting plate (701) is L-shaped, and the vertical portion is slidably connected to the guide slide plate (700); an inclined block (702) is provided at the bottom of the vertical portion of the first limiting plate (701); the inclined block (702) is slidably mounted in a second slide rail (703); the second slide rail (703) is inclined downward, and the bottom is fixedly connected to the movable plate (501) via a connecting piece (704); The second limiting mechanism (8) comprises a squeezing mechanism and a linkage plate (800) driven by the squeezing mechanism to slide in a through groove opened at the top of the lifting bracket (4); both sides of the linkage plate (800) are hingedly connected to connecting rods (801); the other end of the connecting rod (801) is hingedly connected to a connecting block (802); the connecting block (802) is slidably mounted on a guide slide rod (804); the guide slide rod (804) is fixedly mounted on a fixed bracket (805) provided on the lifting bracket (4); a limiting mounting plate (803) is fixedly mounted on the connecting block (802); and the limiting mounting plate (803) is located on one side of the fork (6).

2. The automatic loading and limiting stacker according to claim 1, characterized in that: The lifting mechanism (3) comprises a lifting cylinder (300) mounted on the top of the mounting bracket (2); the output end of the lifting cylinder (300) is fixedly connected to a first rotating bracket (301); a sprocket (302) is rotatably mounted on the first rotating bracket (301); a chain (303) is mounted on the sprocket (302); one end of the chain (303) is connected to a connecting plate (304) provided on the mounting bracket (2); and the other end is connected to the lifting bracket (4); a first sliding block (305) is provided on one side of the lifting bracket (4); and the first sliding block (305) is slidably connected to a first sliding groove (306) provided on the mounting bracket (2) along a vertical direction.

3. The automatic loading and limiting stacker according to claim 1, characterized in that: The distance adjustment mechanism comprises a first slide rail (504) fixedly mounted on a movable plate (501); a double-axis motor (505) is mounted in the first slide rail (504); two output ends of the double-axis motor (505) are each provided with a first screw rod (506); the two first screw rods (506) have opposite thread directions and are both threadedly connected to a second slider (507); the two second sliders (507) are both slidably mounted in the first slide rail (504) and are respectively fixedly connected to the two forks (6).

4. The automatic loading and limiting stacker according to claim 1, characterized in that: The bottom of the vertical portion of the first limiting plate (701) is provided with a second sliding groove (705) extending in the vertical direction, and the side wall is provided with a first limiting hole (707) connected to the second sliding groove; a telescopic plate (706) is slidably installed in the second sliding groove (705); the end of the telescopic plate (706) is fixedly connected to the inclined block (702), and the side wall is provided with second limiting holes (708) linearly arranged in the vertical direction; a limiting pin (709) is inserted into the first limiting hole (707) and one of the second limiting holes (708).

5. The automatic loading and limiting stacker according to claim 1, characterized in that: The extrusion mechanism comprises a second rotating bracket (806) arranged on the guide slide bracket (500), a transmission rod (807) being rotatably mounted on the second rotating bracket (806), a gear (808) being coaxially arranged on the transmission rod (807) and a disc (810) being eccentrically arranged, the gear (808) being meshed with a toothed plate (809) extending in a horizontal direction on the movable plate (501), and a spring (812) being arranged on the linkage plate (800) for driving abutment plate (811) arranged at the top end of the linkage plate (800) to abut against a side wall of the disc (810).

6. The automatic loading and limiting stacker according to claim 1, characterized in that: A second limiting plate (814) is provided on a side of the limiting mounting plate (803) close to the fork (6); a connecting sleeve (815) is fixedly mounted on the second limiting plate (814) and is slidably connected to the limiting mounting plate (803) via symmetrically distributed second sliding rods (813); a second screw rod (816) is rotatably connected to the limiting mounting plate (803); and the second screw rod (816) is threadedly connected to the connecting sleeve (815).

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