Stacking car loader

Abstract

The invention discloses a stacking car loader which comprises a guide rail, a machine body, a stacking device and a conveying device. A vehicle channel for a transport vehicle to enter is formed below the guide rail; the machine body comprises a walking frame, a movable frame and a first driving unit, and the first driving unit is used for driving the movable frame to ascend and descend relative to the walking frame; the stacking device comprises a stacking gate, a mounting frame, a lifting support and a second driving unit, and the second driving unit is used for driving the lifting support to ascend and descend relative to the mounting frame in the vertical direction so as to drive the stacking gate to ascend and descend; the conveying device is used for conveying materials to the stacking gate; stacking positioning of materials in a three-dimensional space is achieved through horizontal sliding of the walking frame, horizontal sliding of the mounting frame, vertical lifting of the movable frame and the stacking gate and horizontal rotation of the stacking gate. According to the technical scheme, the stacking car loader can improve the stacking quality while adapting to transport vehicles with different heights.

Description

Technical Field

[0001] The present invention relates to the technical field of palletizing and loading machines, in particular to a palletizing and loading machine. Background Art

[0002] In modern logistics and industrial production processes, cargo palletizing and loading is a critical step, and its efficiency and quality directly impact production costs and transportation safety. As an efficient and stable palletizing method, staggered palletizing is widely used in numerous industries. By staggering cargo between layers, staggered palletizing effectively improves the stability of the palletizing structure, greatly reducing the risk of cargo collapsing or shifting due to vibration and bumps during transportation, and significantly reducing cargo loss. At the same time, this method can more fully utilize truck compartment space, increase transport loads, and thereby reduce unit transportation costs. In the building materials industry, staggered palletizing is used for bagged cement and sand and gravel to ensure safety in long-distance transportation; in the food industry, this palletizing method is used for bagged flour and condiments to prevent damage and deterioration during transportation.

[0003] Although existing palletizing devices can improve efficiency to a certain extent, they also have serious shortcomings. On the one hand, when using a rake-like manipulator to clamp bagged products, the unloading height is relatively high, and the materials fall into the carriage in a free-fall manner. Due to the large height difference of the carriage bottom, the bagged products falling into the carriage will generate a lot of dust, and the bagged products are easy to shift, resulting in uneven stacking. On the other hand, there are also problems with the way the suction cup absorbs the bagged products. The suction cup is generally adsorbed on the middle of the bagged product. For bagged products that are filled with material, the whole can remain roughly flat after absorption. However, for bagged products that are not filled, that is, when there is less material inside, the two ends are prone to drooping. If they are directly loaded and stacked one by one, there is a high probability that the stacking will be unstable, causing the stacking to collapse. Summary of the Invention

[0004] The main purpose of the present invention is to provide a palletizing loader, which is designed to adapt to transport vehicles of different heights while improving the palletizing quality.

[0005] Improve the accuracy of bagged material palletizing and enhance the stability of bagged product palletizing.

[0006] To achieve the above-mentioned purpose, the present invention proposes a palletizing and loading machine, comprising:

[0007] A guide rail is used to be fixed to the factory building, and a vehicle passage is formed below the guide rail for transport vehicles to enter;

[0008] The machine body includes a traveling frame, a movable frame, and a first driving unit, wherein the traveling frame is slidably mounted on the guide rail, the movable frame is located below the first driving unit, and the first driving unit is connected between the traveling frame and the movable frame to drive the movable frame to rise and fall relative to the traveling frame;

[0009] A palletizing device comprising a palletizing gate, a mounting frame, a lifting bracket, and a second drive unit; the mounting frame is slidably mounted on the movable frame, the sliding direction of the mounting frame and the sliding direction of the traveling frame being perpendicular to each other in a horizontal plane; the lifting bracket is liftably mounted on the mounting frame via the second drive unit; the palletizing gate is rotatably mounted on the lower end of the lifting bracket, and the rotation axis of the palletizing gate extends vertically; the second drive unit is used to drive the lifting bracket to rise and fall in a vertical direction relative to the mounting frame, thereby driving the palletizing gate to rise and fall; and

[0010] A conveying device, mounted on the mounting frame, with a conveying direction pointing to the stacking gate, for conveying materials to the stacking gate;

[0011] The stacking positioning of materials in three-dimensional space is achieved through the horizontal sliding of the traveling frame, the horizontal sliding of the mounting frame, the vertical lifting of the movable frame and the stacking gate, and the horizontal rotation of the stacking gate.

[0012] Optionally, the top of the movable frame is provided with a plurality of first guide columns extending in the vertical direction, and the walking frame is provided with a plurality of first guide sleeves corresponding to the first guide columns, and a sliding sleeve corresponding to each first guide sleeve is provided on the first guide column to form a guide structure for the lifting and lowering of the movable frame.

[0013] Optionally, the first driving unit includes an electric hoist, which is installed on the traveling frame, and a traction end of the electric hoist is connected to the movable frame to drive the movable frame to move up and down.

[0014] Optionally, the conveying device includes a belt conveyor, the conveying direction of the belt conveyor points to the stacking gate, and the discharge end of the belt conveyor is higher than the supporting surface at the top of the stacking gate.

[0015] Optionally, the second driving unit includes a lifting motor, a lifting gear and a lifting rack. The lifting motor is installed on the mounting frame, and the output shaft is connected to the lifting gear. The lifting rack is vertically fixed to the lifting bracket and engages with the lifting gear to drive the lifting gear to rotate through the lifting motor, thereby driving the lifting bracket to rise and fall in the vertical direction.

[0016] Optionally, the lifting bracket includes at least two second guide columns extending in the vertical direction, and a connecting plate connected to the lower ends of the two second guide columns. The mounting frame is provided with a plurality of second guide sleeves corresponding to the second guide columns, and each second guide sleeve corresponds to a sliding sleeve provided on the second guide column. The stacking gate is rotatably mounted at the lower end of the connecting plate.

[0017] Optionally, the palletizing gate is connected to the connecting plate via a rotary drive mechanism, which includes a rotary motor fixed to the connecting plate, the output shaft of the rotary motor extending downward and fixedly connected to the palletizing gate for driving the palletizing gate to rotate around a vertical axis.

[0018] Optionally, the stacking gate includes a main body, a driving mechanism and two opening and closing pages. The main body is rotatably mounted on the lower end of the lifting bracket, and the two opening and closing pages are hinged to the main body. The driving mechanism is used to drive the two opening and closing pages to rotate synchronously to form a closed state for supporting materials or an open state for releasing materials.

[0019] Optionally, the driving mechanism includes a driving member, a single slider and two groups of crank connecting rods. The single slider is slidably installed on the main body. The two groups of crank connecting rods are spaced apart on both sides of the single slider, each corresponding to one of the opening and closing pages. The crank and the connecting rod in each group are hinged, the crank is connected to the opening and closing page, and the connecting rod is connected to the single slider. The driving member is installed on the main body and is used to drive the single slider to slide up and down, and the two groups of crank connecting rods respectively drive the opening and closing pages to rotate.

[0020] Optionally, the palletizing device further includes a third drive unit, which includes a translation motor, a translation gear and a translation rack. The translation motor is installed on the mounting frame, and the output shaft is connected to the translation gear. The translation rack is horizontally fixed to the movable frame and meshes with the translation gear to drive the translation gear to rotate through the translation motor, thereby driving the mounting frame to translate relative to the movable frame.

[0021] The technical solution of this invention achieves precise positioning along the X, Y, and Z axes through the horizontal sliding of the traveling and mounting frames, coordinated with the vertical movement of the movable frame and palletizing gates. This allows for precise positioning at any coordinate point within the carriage. Furthermore, the horizontal rotation of the palletizing gates adjusts the material placement angle, perfectly adapting to the angle-shifting requirements of multi-layer cross-stacked stacking (e.g., horizontal first layer, vertical second layer), ensuring precise alignment of each layer and improving palletizing stability.

[0022] In addition, the overall lifting of the movable frame can achieve a wide range of height adjustment, thereby adapting to the height of carriages of different models. The partial lifting of the stacking gate is used to slowly lower it when approaching the stacking layer, which can avoid collision or dumping of materials due to excessive height difference, improve the stacking quality, and avoid excessive dust when stacking materials such as flour and cement.

[0023] Moreover, the guide rails are fixed above the factory building, and vehicles pass through the channel below, forming a three-dimensional operation layout. This avoids the problem of traditional ground equipment occupying ground space, and can operate in parallel with ground conveyor lines, forklifts and other equipment to improve the utilization rate of factory space. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0025] Figure 1 This is a structural schematic diagram of an embodiment of a palletizing and loading machine of the present invention;

[0026] Figure 2 for Figure 1 Schematic diagram of the structure in which the middle stacking gate is adjusted to the low position by the first drive unit and the second drive unit;

[0027] Figure 3 for Figure 2 Schematic diagram of the structure in which the middle stacking gate is adjusted to the high position by the first drive unit and the second drive unit;

[0028] Figure 4 for Figure 2 Schematic diagram of the structure of the middle palletizing device;

[0029] Figure 5 for Figure 4 A schematic diagram of the structure of the middle palletizing device from another perspective;

[0030] Figure 6 for Figure 4 Schematic diagram of the structure of the middle stacking gate;

[0031] Figure 7 for Figure 6 Schematic diagram of the structure of the driving mechanism.

[0032] Explanation of the accompanying reference numerals: 200, conveying device; 210, belt conveyor; 300, palletizing device; 310, palletizing gate; 311, main body; 312, driving mechanism; 3121, driving member; 3122, single slider; 3123, crank connecting rod; 3124, lead screw; 313, opening and closing leaf; 320, mounting frame; 330, lifting bracket; 331, second guide column; 332, connecting plate; 340, second driving unit; 341, lifting motor; 342, lifting gear; 343, lifting rack; 350, third driving unit; 351, translation motor; 352, translation gear; 353, translation rack; 360, rotating motor; 400, machine body; 410, traveling frame; 411, first guide sleeve; 420, movable frame; 421, first guide column; 430, first driving unit; 431, electric hoist;

[0033] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0035] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0036] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their 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 at least one of such features. In addition, the meaning of "and / or" appearing in the full text is to include three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or a solution in which both A and B are satisfied. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0037] The present invention provides a palletizing and loading machine.

[0038] In the embodiment of the present invention, Figures 1 to 7 As shown, the palletizing loader includes a guide rail, a body 400, a palletizing device 300 and a conveying device 200; the guide rail is used to be fixed to the factory building, and a vehicle passage for transport vehicles to enter is formed under the guide rail; the body 400 includes a traveling frame 410, a movable frame 420 and a first driving unit 430, the traveling frame 410 is slidably mounted on the guide rail, the movable frame 420 is located below the first driving unit 430, and the first driving unit 430 is connected between the traveling frame 410 and the movable frame 420, and is used to drive the movable frame 420 to rise and fall relative to the traveling frame 410; the palletizing device 300 includes a palletizing gate 310, a mounting frame 320, a lifting bracket 330 and a second driving unit 340, the mounting frame 320 is slidably mounted on the movable frame 420, and the sliding direction of the mounting frame 320 is aligned with the sliding direction of the traveling frame 410 The directions are perpendicular to each other in the horizontal plane. The lifting bracket 330 is liftably mounted on the mounting frame 320 through the second drive unit 340. The stacking gate 310 is rotatably mounted at the lower end of the lifting bracket 330, and the rotation axis of the stacking gate 310 extends vertically. The second drive unit 340 is used to drive the lifting bracket 330 to rise and fall relative to the mounting frame 320 in the vertical direction, thereby driving the stacking gate 310 to rise and fall; the conveying device 200 is mounted on the mounting frame 320, and the conveying direction points to the stacking gate 310, which is used to convey the material to the stacking gate 310; through the horizontal sliding of the walking frame 410, the horizontal sliding of the mounting frame 320, the vertical lifting of the movable frame 420 and the stacking gate 310, and the horizontal rotation of the stacking gate 310, the stacking positioning of the material in three-dimensional space is realized.

[0039] Specifically, the transport vehicle enters the factory building and stops in the vehicle passage below the guide rail, and the position of the vehicle body needs to be aligned with the operating range of the pallet loader. Then, the traveling frame 410 slides along the guide rail to the initial position directly above the vehicle, and the movable frame 420 is lowered to a preset height by the first driving unit 430. The palletizing gate 310 is raised to the highest position by the second driving unit 340 and the lifting bracket 330. The gate is in a closed state, forming a material supporting surface, and at the same time rotates to the initial angle, which can support the material transported by the conveying device 200.

[0040] After the stacking gate 310 moves the material to above the preset stacking position, the stacking gate 310 will open to release the material and drop the material to the designated stacking position. In this way, through the horizontal sliding of the walking frame 410, the horizontal sliding of the mounting frame 320, the vertical lifting of the movable frame 420 and the stacking gate 310, and the horizontal rotation of the stacking gate 310, the material can be accurately delivered from the conveying end to any position in the carriage, which is particularly suitable for multi-layer cross-stacking scenarios.

[0041] The present invention utilizes the horizontal sliding of the traveling frame 410 and mounting frame 320, coupled with the vertical movement of the movable frame 420 and palletizing gate 310, to achieve precise positioning along the X, Y, and Z axes, capable of covering any coordinate point within the carriage. Furthermore, the horizontal rotation of the palletizing gate 310 allows for adjustment of the material placement angle, perfectly adapting to the angle-shifting requirements of multi-layer cross-stacked stacking (e.g., horizontal first layer, vertical second layer), ensuring strict alignment of each layer and improving palletizing stability.

[0042] In addition, the overall lifting of the movable frame 420 can achieve a wide range of height adjustment to adapt to the height of carriages of different models. The partial lifting of the stacking gate 310 is used to slowly lower it when approaching the stacking layer, which can avoid collision or dumping of materials due to excessive height difference, improve the stacking quality, and avoid excessive dust when stacking materials such as flour and cement.

[0043] Moreover, the guide rails are fixed above the factory building, and vehicles pass through the channel below, forming a three-dimensional operation layout. This avoids the problem of traditional ground equipment occupying ground space, and can operate in parallel with ground conveyor lines, forklifts and other equipment to improve the utilization rate of factory space.

[0044] In some embodiments, the top of the movable frame 420 is provided with a plurality of first guide posts 421 extending in a vertical direction, and the traveling frame 410 is provided with a plurality of first guide sleeves 411 corresponding to the first guide posts 421. Each first guide sleeve 411 corresponds to a sliding sleeve mounted on the first guide post 421, thereby forming a guide structure for the lifting and lowering of the movable frame 420. Specifically, the movable frame 420 is lifted and lowered vertically by the first drive unit 430, and the sliding fit between the guide posts and the guide sleeves provides a strict vertical guide for the movable frame 420. The guide sleeves are rigidly connected to the traveling frame 410, which can effectively restrain lateral deviation or rotational shaking that may occur during the lifting and lowering process of the movable frame 420, thereby ensuring the positioning accuracy of the palletizing device 300 and preventing the material placement position from shifting due to the tilt of the movable frame 420.

[0045] In some embodiments, the first drive unit 430 includes an electric hoist 431, which is mounted on the traveling frame 410. The traction end of the electric hoist 431 is connected to the movable frame 420 to drive the movable frame 420 to rise and fall. Specifically, the movable frame 420 of the palletizing loader needs to bear the static weight of the palletizing device 300 and the dynamic load of the material. The rated lifting capacity of the electric hoist 431 can easily cover such load requirements. At the same time, its lifting speed is significantly higher than that of traditional hydraulic cylinders or screw drives, and a large range of height adjustments of the movable frame 420 can be quickly completed. Moreover, the main body of the electric hoist 431 can be directly mounted on the top or side of the traveling frame 410 without occupying additional space under the traveling frame 410, leaving a larger margin for the lifting stroke of the movable frame 420.

[0046] In some embodiments, the conveying device 200 includes a belt conveyor 210. The conveying direction of the belt conveyor 210 is directed toward the palletizing gate 310, and the discharge end of the belt conveyor 210 is higher than the support surface at the top of the palletizing gate 310. Specifically, the discharge end of the belt conveyor 210 is higher than the support surface of the palletizing gate 310, and the material's own gravity is used to form a natural sliding process from high-level discharge to low-level reception. Compared with structures that use a handling robot for conveying, the belt conveyor 210 has higher conveying efficiency, lower costs, and is more convenient to maintain.

[0047] In some embodiments, the second drive unit 340 includes a lifting motor 341, a lifting gear 342, and a lifting rack 343. The lifting motor 341 is mounted on the mounting frame 320, and its output shaft is connected to the lifting gear 342. The lifting rack 343 is vertically fixed to the lifting bracket 330 and meshes with the lifting gear 342. The lifting motor 341 drives the lifting gear 342 to rotate, thereby driving the lifting bracket 330 to rise and fall in the vertical direction. Specifically, the rack and pinion transmission is a rigid meshing transmission with a constant transmission ratio and no slip. It can achieve high-precision vertical lifting of the stacking gate 310 and ensure the positioning accuracy of materials when stacking at different heights. Compared with flexible transmissions such as wire ropes and chains, the rack and pinion transmission has stronger vibration and impact resistance, and is particularly suitable for frequent starting and stopping and heavy load scenarios. It avoids gate shaking caused by transmission gaps or elastic deformation and can ensure stability during material support and release. Moreover, the rack converts rotary motion into linear motion, with high transmission efficiency and low energy loss. Combined with a servo motor or a variable frequency motor, it can achieve stepless adjustment of the lifting speed and precise feedback control of the position, thereby adapting to the needs of different material weights and stacking rhythms, and further improving loading efficiency.

[0048] In some embodiments, the lifting bracket 330 includes at least two second guide posts 331 extending vertically, and a connecting plate 332 connected to the lower ends of the two second guide posts 331. The mounting frame 320 is provided with a plurality of second guide sleeves corresponding to the second guide posts 331. Each second guide sleeve corresponds to a sliding sleeve mounted on the second guide post 331. The palletizing gate 310 is rotatably mounted on the lower end of the connecting plate 332. Specifically, the second guide posts 331 extend vertically and slidably engage with the second guide sleeves, providing a rigid guide constraint for the lifting and lowering motion of the palletizing gate 310, ensuring that it moves strictly along a vertical trajectory, avoiding tilting or yaw caused by lateral forces, and thus preventing the risk of material misplacement or tipping due to gate skew, further improving palletizing accuracy.

[0049] In some embodiments, the palletizing gate 310 is connected to the connecting plate 332 via a rotary drive mechanism 312. The rotary drive mechanism 312 includes a rotary motor 360 fixed to the connecting plate 332. The output shaft of the rotary motor 360 extends downward and is fixedly connected to the palletizing gate 310, which is used to drive the palletizing gate 310 to rotate about a vertical axis. Specifically, strewn palletizing requires that materials be stacked in multiple layers. By driving the palletizing gate 310 to rotate by the rotary motor 360, the materials can be changed in direction during delivery, easily achieving a cross-stacked pattern such as horizontal stacking on the first layer and vertical stacking on the second layer. This meets specific palletizing requirements and improves the stability and space utilization of the pallet. Moreover, the rotary motor 360 has a relatively fast start and stop speed, which can complete the rotation of the palletizing gate 310 in a short time, reducing the time interval between palletizing operations and improving overall palletizing efficiency.

[0050] In some embodiments, the palletizing gate 310 includes a main body 311, a drive mechanism 312, and two hinges 313. The main body 311 is rotatably mounted at the lower end of a lifting bracket 330. The two hinges 313 are hingedly connected to the main body 311. The drive mechanism 312 is configured to drive the hinges 313 to rotate synchronously, either in a closed position to support materials or in an open position to release materials. Specifically, when the hinges 313 are in the closed position, they together form a flat support surface that stably receives materials conveyed from the conveyor 200. Whether they are regularly shaped boxes, bagged goods, or irregularly shaped items, they all remain stable on this support surface, reducing the risk of swaying, sliding, or tipping during the receiving process, ensuring that the materials are safely received by the palletizing gate 310. The drive mechanism 312 is capable of driving the hinges 313 to rotate synchronously, enabling rapid opening and accurate release of materials to the designated palletizing location. During the palletizing process, this rapid release action reduces the time the materials remain in the air, improving palletizing efficiency. At the same time, by precisely controlling the opening angle and speed of the opening and closing pages 313, it is possible to ensure that the materials fall along a predetermined trajectory, achieve precise delivery, and ensure the neatness and stability of the stacking.

[0051] In some embodiments, the drive mechanism 312 includes a drive member 3121, a single slider 3122, and two sets of crank-connecting rods 3123. The single slider 3122 is slidably mounted on the main body 311. The two sets of crank-connecting rods 3123 are spaced apart on either side of the single slider 3122, each corresponding to a hinged door 313. The crank and connecting rod of each set are hinged, with the crank connected to the hinged door 313 and the connecting rod connected to the single slider 3122. The drive member 3121 is mounted on the main body 311 and is used to drive the single slider 3122 to slide up and down. The two sets of crank-connecting rods 3123 respectively drive the hinged door 313 to rotate. Specifically, the two sets of crank-connecting rods 3123 are symmetrically distributed on either side of the single slider 3122. When the drive member 3121 drives the slider to slide up and down, the connecting rods on both sides synchronously drive the two hinged doors 313 to rotate via the cranks. This design, driven by a single power source and operating on both sides, mechanically ensures that the rotation angles and speeds of the two hinges 313 are perfectly aligned, completely eliminating the asynchronous opening and closing issues often associated with traditional dual-drive systems (e.g., two independent cylinders) due to control errors or component wear. Furthermore, the crank-connecting rod 3123 mechanism is a rigid transmission mechanism, converting the linear motion of the slider into the rotational motion of the hinge 313. Compared to flexible transmissions like belts and chains, this mechanism exhibits no elastic deformation during the transmission process, and the hinge point between the connecting rod and the crank can withstand significant loads.

[0052] In some embodiments, the drive member 3121 is a motor, and the drive mechanism 312 further includes a lead screw 3124, which is threaded onto the single slider 3122 and connected to the output shaft of the motor. Specifically, the lead screw 3124 transmission is a continuous meshing transmission. Compared to the pneumatic impact of a cylinder or the rigid push of an electric push rod, the movement speed and acceleration of the slider can be infinitely adjusted when the motor drives the lead screw 3124, achieving smooth starts and stops and uniform movement. This avoids the problems of insufficient precision, high impact, and low safety of the traditional drive member 3121 during the opening and closing of the palletizing gate 310. It is particularly suitable for heavy-load palletizing scenarios that require high control accuracy and safety.

[0053] In some embodiments, there are two palletizing devices 300, and the two palletizing devices 300 are installed on the movable frame 420 through the same palletizing track. The two palletizing devices 300 can slide independently through the track, and the conveying device 200 feeds the two palletizing devices in turn. When one palletizing device is palletizing, the conveying device 200 can directly feed the other palletizing device 300 without waiting for the working cycle of the previous palletizing device 300, thereby improving the palletizing efficiency of the palletizing loader.

[0054] In some embodiments, the palletizing device 300 further includes a third drive unit 350, which includes a translation motor 351, a translation gear 352, and a translation rack 353. The translation motor 351 is mounted on the mounting frame 320, and its output shaft is connected to the translation gear 352. The translation rack 353 is horizontally fixed to the movable frame 420 and meshes with the translation gear 352. The translation motor 351 drives the translation gear 352 to rotate, thereby driving the mounting frame 320 to translate relative to the movable frame 420. Specifically, the rack and pinion drive is a rigid meshing drive with a constant transmission ratio and no slip. It can achieve high-precision lateral movement of the palletizing gate 310, ensuring the positioning accuracy of the materials. Compared with flexible transmissions such as wire ropes and chains, the rack and pinion drive has stronger vibration and impact resistance, making it particularly suitable for frequent starting and stopping and heavy load scenarios. It avoids gate shaking caused by transmission backlash or elastic deformation, and can ensure stability during material support and release. Moreover, the rack converts rotary motion into linear motion, with high transmission efficiency and low energy loss. Combined with a servo motor or a variable frequency motor, it can achieve stepless adjustment of the lifting speed and precise feedback control of the position, thereby adapting to the needs of different material weights and stacking rhythms, and further improving loading efficiency.

[0055] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A palletizing loader, characterized in that: include: A guide rail is used to be fixed to the factory building, and a vehicle passage is formed below the guide rail for transport vehicles to enter; The machine body includes a traveling frame, a movable frame, and a first driving unit, wherein the traveling frame is slidably mounted on the guide rail, the movable frame is located below the first driving unit, and the first driving unit is connected between the traveling frame and the movable frame to drive the movable frame to rise and fall relative to the traveling frame; A palletizing device comprising a palletizing gate, a mounting frame, a lifting bracket, and a second drive unit; the mounting frame is slidably mounted on the movable frame, the sliding direction of the mounting frame and the sliding direction of the traveling frame being perpendicular to each other in a horizontal plane; the lifting bracket is liftably mounted on the mounting frame via the second drive unit; the palletizing gate is rotatably mounted on the lower end of the lifting bracket, and the rotation axis of the palletizing gate extends vertically; the second drive unit is used to drive the lifting bracket to rise and fall in a vertical direction relative to the mounting frame, thereby driving the palletizing gate to rise and fall; and A conveying device, mounted on the mounting frame, with a conveying direction pointing to the stacking gate, for conveying materials to the stacking gate; The stacking positioning of materials in three-dimensional space is achieved through the horizontal sliding of the traveling frame, the horizontal sliding of the mounting frame, the vertical lifting of the movable frame and the stacking gate, and the horizontal rotation of the stacking gate.

2. The palletizing loader according to claim 1, characterized in that: The top of the movable frame is provided with a plurality of first guide columns extending in the vertical direction, and the walking frame is provided with a plurality of first guide sleeves corresponding to the first guide columns. The sliding sleeve corresponding to each first guide sleeve is provided on the first guide column to form a guide structure for the lifting and lowering of the movable frame.

3. The palletizing loader according to claim 1 or 2, characterized in that: The first driving unit includes an electric hoist, which is installed on the traveling frame. The traction end of the electric hoist is connected to the movable frame to drive the movable frame to move up and down.

4. The palletizing machine according to claim 1, characterized in that: The conveying device includes a belt conveyor, the conveying direction of the belt conveyor points to the stacking gate, and the discharge end of the belt conveyor is higher than the supporting surface at the top of the stacking gate.

5. The palletizing and loading machine according to claim 1, characterized in that: The second driving unit includes a lifting motor, a lifting gear and a lifting rack. The lifting motor is installed on the mounting frame, and the output shaft is connected to the lifting gear. The lifting rack is vertically fixed to the lifting bracket and engages with the lifting gear to drive the lifting gear to rotate through the lifting motor, thereby driving the lifting bracket to rise and fall in the vertical direction.

6. The palletizing loader according to claim 5, characterized in that: The lifting bracket includes at least two second guide columns extending in the vertical direction, and a connecting plate connected to the lower ends of the two second guide columns. The mounting frame is provided with a plurality of second guide sleeves corresponding to the second guide columns. The sliding sleeve corresponding to each second guide sleeve is provided on the second guide column. The stacking gate is rotatably mounted on the lower end of the connecting plate.

7. The palletizing and loading machine according to claim 6, characterized in that: The stacking gate is connected to the connecting plate through a rotary drive mechanism, which includes a rotary motor fixed to the connecting plate. The output shaft of the rotary motor extends downward and is fixedly connected to the stacking gate for driving the stacking gate to rotate around a vertical axis.

8. The palletizing and loading machine according to claim 1 or 6, characterized in that: The stacking gate includes a main body, a driving mechanism and two opening and closing pages. The main body is rotatably mounted on the lower end of the lifting bracket. The two opening and closing pages are hinged to the main body. The driving mechanism is used to drive the two opening and closing pages to rotate synchronously to form a closed state for supporting materials or an open state for releasing materials.

9. The palletizing and loading machine according to claim 8, characterized in that: The driving mechanism includes a driving member, a single slider and two groups of crank connecting rods. The single slider is slidably installed on the main body. The two groups of crank connecting rods are spaced apart on both sides of the single slider, each corresponding to one of the opening and closing pages. The crank and the connecting rod of each group are hinged, the crank is connected to the opening and closing page, and the connecting rod is connected to the single slider. The driving member is installed on the main body and is used to drive the single slider to slide up and down, and the two groups of crank connecting rods respectively drive the opening and closing pages to rotate.

10. The palletizing loader according to claim 1, characterized in that: The palletizing device also includes a third driving unit, which includes a translation motor, a translation gear and a translation rack. The translation motor is installed on the mounting frame, and the output shaft is connected to the translation gear. The translation rack is horizontally fixed to the movable frame and meshes with the translation gear to drive the translation gear to rotate through the translation motor, thereby driving the mounting frame to translate relative to the movable frame.

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