Stacker with automatic unloading function

By controlling the servo motor and threaded rod system through the console, the stacker truck can automatically unload goods, solving the problem of inconvenient unloading of goods in the existing technology and improving work efficiency.

CN223963224UActive Publication Date: 2026-03-03TIANJIN GUANGSHENG HANDLING MACHINERY
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-25
Publication Date
2026-03-03

AI Technical Summary

Technical Problem

Existing stackers require pallets during cargo handling, making it impossible to automatically unload and stack goods of different heights, resulting in low work efficiency.

Method used

The first servo motor is controlled by the console to drive the bidirectional threaded rod to rotate. The slider slides and drives the first connecting rod to move closer. The fixing plate slides close to the goods and is fixed by the clamp. After the placement plate is raised directly above the goods, the connecting rod is separated to allow the goods to be stacked at the loading port. Combined with the unloading roller, automatic unloading is achieved.

Benefits of technology

It improves unloading efficiency and enhances the practicality of stackers, enabling goods to automatically detach and be stacked on the lower level, reducing manual intervention.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223963224U_ABST
    Figure CN223963224U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of stackers, and discloses a stacker with an automatic unloading function, which comprises a fixing mechanism, a loading and unloading mechanism and a stacker body, one end of the loading and unloading mechanism is fixedly connected with the fixing mechanism, the stacker body is arranged at one end of the loading and unloading mechanism, the fixing mechanism comprises two placing plates, and the two placing plates are fixedly connected with the loading and unloading mechanism. Goods falling openings are formed in one sides of the upper end faces of the two containing plates. According to the stacking vehicle, the first servo motor is driven by the control console to drive the bidirectional threaded rod to rotate, so that the two sliding blocks arranged on the bidirectional threaded rod in a sleeving mode oppositely slide on the base, the first connecting rod is driven to rotate to push the fixing plate and the clamping plate to clamp goods, and after the stacking vehicle moves to a stacking place, the placing plate ascends to the top of a goods pile; and when the goods falling opening is aligned with the goods below, the first connecting rod rotates reversely to separate the fixing plates, the goods are stably stacked through the goods falling opening under the assistance of the discharging roller, efficient unloading is achieved, and the practicability of the device is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of stacker technology, and in particular to a stacker with automatic unloading function. Background Technology

[0002] A stacker truck is an industrial vehicle used for handling and stacking goods, and it comes in manual, electric, and fuel-powered types. Its core structure includes forks, a mast, and a hydraulic lifting system, capable of lifting heavy objects to a height of several meters, making it suitable for warehouses, workshops, and other similar locations. Manual stackers rely on manual operation and are economical and practical; electric models are efficient and labor-saving, suitable for frequent operations; fuel-powered models offer strong power and are suitable for outdoor use. Stackers effectively improve logistics efficiency and reduce labor intensity, making them indispensable equipment in modern warehousing and logistics. When using them, attention must be paid to load limits and operational safety.

[0003] Most existing forklifts require pallets to move and stack goods during the transport process. After the goods are moved to the desired height, the pallets obstruct the stacking of goods of different heights, making it impossible to automatically unload goods during the stacking process and allow upper-layer goods to detach and be conveniently stacked on top of lower-layer goods. The entire stacking process requires the cooperation of many workers to achieve a neat stacking effect, which greatly reduces the efficiency of goods stacking and thus reduces the practicality of the equipment.

[0004] Therefore, those skilled in the art have provided a stacker truck with automatic unloading function to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a stacker truck with automatic unloading function. The stacker truck uses a control console to control a first servo motor that drives a bidirectional threaded rod to rotate. This rotation causes two sliders mounted on the rod to slide on a base. As the sliders slide, a first connecting rod rotating on them moves closer together, causing a fixing plate to slide closer to the placement plate. The goods are then secured using a clamp connected to a spring telescopic rod on the fixing plate. When the stacker truck moves to the stacking area, the placement plate rises to its highest point directly above the goods. Once the unloading port is aligned with the goods below, the first connecting rod can be manipulated to separate at both ends, causing the fixing plate to slide apart. At this point, the goods, assisted by a discharge roller, are stacked on top of the pile through the unloading port, thereby enhancing unloading efficiency and improving the practicality of the device.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A stacker truck with automatic unloading function includes a fixing mechanism, a loading and unloading mechanism, and a stacker truck body. The loading and unloading mechanism is fixedly connected to the fixing mechanism at one end, and the stacker truck body is provided at the other end. The fixing mechanism includes two placement plates. Each of the two placement plates has a loading port on one side of its upper surface. Each of the two placement plates has a base fixedly connected to one side of its upper surface. Each of the two bases has a first servo motor in the middle of its upper surface. Each of the two first servo motors has a bidirectional threaded rod fixedly connected to its output end. Each of the two bidirectional threaded rods has two sliders sleeved on its outer wall. Each of the sliders has a first connecting rod rotatably connected to its inner center. Each of the two first connecting rods has a fixed plate rotatably connected to one end. Each of the two fixed plates has two discharge rollers at both ends of its upper surface. Each of the two fixed plates has two spring telescopic rods fixedly connected to one end of its upper surface. Each of the two spring telescopic rods has a clamping plate fixedly connected to one end.

[0008] Through the above technical solution, the stacker truck controls the first servo motor via the control console to drive the bidirectional threaded rod to rotate. The rotation of the bidirectional threaded rod causes two sliders mounted on it to slide on the base. When the two sliders slide, they drive the first connecting rod rotating on them to move closer together, causing the fixing plate to slide closer above the placement plate. The clamp on the fixing plate, which is connected to the spring telescopic rod, fixes the goods. When the stacker truck body moves to the stacking site, the placement plate rises to the highest point directly above the goods. After the loading port is aligned with the goods below, the first connecting rod can be operated to separate at both ends, causing the fixing plate to slide apart. At this time, the goods are stacked on top of the stack with the assistance of the unloading roller through the loading port, thereby enhancing the unloading efficiency and improving the practicality of the device.

[0009] Furthermore, the loading and unloading mechanism includes a stabilizing bracket, with a second servo motor provided on both sides of the upper end face of the stabilizing bracket, and a worm gear fixedly connected to the output ends of the two second servo motors. A rotating shaft is rotatably connected to both ends of the upper end face of the stabilizing bracket, and a worm wheel is fixedly connected to the middle of the outer wall of the two rotating shafts. A second connecting rod is fixedly connected to the upper end of one side of the outer wall of the two rotating shafts.

[0010] Through the above technical solution, the device controls two second servo motors via the control console to drive the worm gear to rotate. The worm gear drives the worm wheel to rotate. When the worm wheel rotates, the rotating shaft fixedly connected to it rotates at both ends of the upper end face of the stable support. The second connecting rod fixedly connected to the rotating shaft then drives the placement plate, which was originally assembled together, to rotate outward from the cargo pile at a certain angle until the fixing mechanism is completely detached from the cargo pile after unloading. This allows the fixing mechanism to be promptly detached from the cargo pile after unloading for subsequent work, thereby enhancing unloading efficiency and improving the practicality of the device.

[0011] Furthermore, the stacker vehicle body includes a chassis, a control console is provided in the middle of the upper end face of the chassis, a guide rod is fixedly connected in the middle of the upper end face of the chassis, and a plurality of hydraulic telescopic rods are provided at one end of the upper end face of the chassis.

[0012] Through the above technical solution, the stacker truck body can control multiple hydraulic telescopic rods through the control console to raise or lower the stabilizing support, thereby enabling the loading and unloading mechanism and the fixing mechanism to rise and fall accordingly, completing the handling and loading / unloading of goods.

[0013] Furthermore, a fixing plate is slidably connected to one side of the upper end face of each of the two placement plates, and a slider is slidably connected to both sides of the upper end face of each of the two bases.

[0014] Through the above technical solution, this setting not only makes the movement of the fixing plate more stable, but also enhances the load-bearing capacity of the fixing plate.

[0015] Furthermore, one end of each of the two placement plates is fixedly connected to the second connecting rod;

[0016] Through the above technical solution, this setting enables the rotation of the second link to also drive the placement plate to separate and rotate, thereby detaching it from the cargo stack.

[0017] Furthermore, both worm gears are fixedly connected to the two ends of the upper end face of the stable bracket, and worm wheels are meshed with one side of the outer wall of both worm gears;

[0018] Through the above technical solution, this setting makes the rotation of the worm more stable and the worm wheel can also be controlled in one direction to prevent the worm wheel from reversing.

[0019] Furthermore, sleeves are fixedly connected to both sides of the lower end face of the stable bracket, and connecting plates are fixedly connected to one side of the inner wall of each of the two sleeves.

[0020] Through the above technical solution, this setup enables the stacker truck body to be connected to the stable support and control the overall movement and height adjustment of the device.

[0021] Furthermore, a connecting plate is slidably connected to one side of the outer wall of the guide rod;

[0022] Through the above technical solution, this setting enables the connecting plate and the loading / unloading mechanism and fixing mechanism connected to it to rise and fall vertically along the trajectory of the guide rod without tilting or deviating.

[0023] This utility model has the following beneficial effects:

[0024] 1. This utility model proposes a stacker truck with automatic unloading function. The stacker truck is controlled by a control console to drive a first servo motor to rotate a bidirectional threaded rod. The rotation of the bidirectional threaded rod causes two sliders mounted on it to slide on the base. When the two sliders slide, they drive the first connecting rod rotating on them to move closer together, causing the fixing plate to slide close above the placement plate. The goods are fixed by the clamp plate connected to the spring telescopic rod on the fixing plate. When the stacker truck body moves to the stacking site, the placement plate rises to the highest point directly above the goods. After the unloading port is aligned with the goods below, the first connecting rod can be operated to separate the two ends, causing the fixing plate to slide apart. At this time, the goods are stacked on top of the stack with the assistance of the unloading roller through the unloading port, thereby enhancing the unloading efficiency and improving the practicality of the device.

[0025] 2. The present invention proposes a stacker with automatic unloading function. The device controls two second servo motors through the control console to drive the worm gear to rotate. The worm gear drives the worm wheel to rotate. When the worm wheel rotates, the rotating shaft fixedly connected to it rotates at both ends of the upper end face of the stable support. The second connecting rod fixedly connected to the rotating shaft drives the placement plate that was originally assembled together to rotate outward of the stack of goods by a certain angle until the fixing mechanism is completely separated from the stack of goods after unloading. This allows the fixing mechanism to be separated from the stack of goods in time after unloading to carry out subsequent work, thereby improving unloading efficiency and improving the practicality of the device. Attached Figure Description

[0026] Figure 1 This is an isometric view of a stacker truck with automatic unloading function proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of a stacker truck with automatic unloading function proposed in this utility model;

[0028] Figure 3 This is an exploded structural diagram of the fixing mechanism of a stacker truck with automatic unloading function proposed in this utility model;

[0029] Figure 4 This is a schematic diagram of the loading and unloading mechanism of a stacker truck with automatic unloading function proposed in this utility model;

[0030] Figure 5 This is a side view of a stacker truck with automatic unloading function proposed in this utility model.

[0031] Legend:

[0032] 1. Fixing mechanism; 101. Placement plate; 102. Drop port; 103. Base; 104. First servo motor; 105. Bidirectional threaded rod; 106. Slider; 107. First connecting rod; 108. Fixing plate; 109. Discharge roller; 110. Spring telescopic rod; 111. Clamping plate; 2. Loading and unloading mechanism; 201. Stabilizing bracket; 202. Second servo motor; 203. Worm gear; 204. Rotating shaft; 205. Worm wheel; 206. Second connecting rod; 207. Sleeve; 208. Connecting plate; 3. Stacker body; 301. Chassis; 302. Control console; 303. Guide rod; 304. Hydraulic telescopic rod. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Reference Figure 1-3 One specific embodiment provided by this utility model:

[0035] A stacker truck with automatic unloading function includes a fixing mechanism 1, a loading and unloading mechanism 2, and a stacker truck body 3. The loading and unloading mechanism 2 is fixedly connected to the fixing mechanism 1 at one end, and the stacker truck body 3 is located at the other end. The fixing mechanism 1 includes two placement plates 101, each with a loading port 102 on one side of its upper surface. A base 103 is fixedly connected to one side of the upper surface of each of the two placement plates 101. A first servo motor 104 is located in the middle of the upper surface of each of the two bases 103. A bidirectional threaded rod 105 is fixedly connected to the output end of each of the two first servo motors 104. Two sliders 106 are sleeved on the outer wall of each of the two bidirectional threaded rods 105. A first connecting rod 107 is rotatably connected to the inner center of each slider 106. A fixing plate 108 is rotatably connected to one end of each pair of first connecting rods 107. Two unloading rollers 109 are located at both ends of the upper surface of each of the two fixing plates 108. Two spring telescopic rods 110 are fixedly connected, and a clamping plate 111 is fixedly connected to one end of each pair of spring telescopic rods 110. The stacker truck controls the first servo motor 104 through the control console 302 to drive the bidirectional threaded rod 105 to rotate. The rotation of the bidirectional threaded rod 105 drives the two sliders 106 sleeved on it to slide on the base 103. When the two sliders 106 slide, they drive the first connecting rod 107 rotating on them to move closer to each other, and cause the fixing plate 108 to slide close to the placement plate 101 above it. The clamping plate 111 on the fixing plate 108 connected to the spring telescopic rod 110 fixes the goods. When the stacker truck body 3 moves to the stacking site, the placement plate 101 rises to the highest point directly above the goods. After the drop port 102 is aligned with the goods below, the first connecting rod 107 can be operated to separate to both ends, so that the fixing plate 108 slides apart. At this time, the goods are stacked on the top of the stack with the assistance of the discharge roller 109 through the drop port 102, thereby enhancing the unloading efficiency and improving the practicality of the device.

[0036] Reference Figure 3-5The loading and unloading mechanism 2 includes a stabilizing bracket 201. Two second servo motors 202 are mounted on both sides of the upper end face of the stabilizing bracket 201. Worms 203 are fixedly connected to the output ends of both second servo motors 202. Rotating shafts 204 are rotatably connected to both ends of the upper end face of the stabilizing bracket 201. Worm gears 205 are fixedly connected to the middle of the outer wall of each of the two rotating shafts 204. A second connecting rod 206 is fixedly connected to the upper end of one side of the outer wall of each of the two rotating shafts 204. The device controls the two second servo motors 202 via a control console 302. The worm gear 203 rotates, which drives the worm wheel 205 to rotate. When the worm wheel 205 rotates, the rotating shaft 204, which is fixedly connected to it, rotates at both ends of the upper end face of the stable support 201. The second connecting rod 206, which is fixedly connected to the rotating shaft 204, then drives the placement plate 101, which was originally assembled together, to rotate outward from the cargo pile by a certain angle until the fixing mechanism 1 is completely separated from the cargo pile after unloading. This allows the fixing mechanism to be separated from the cargo pile in time after unloading to carry out subsequent work, thereby improving unloading efficiency and increasing the practicality of the device.

[0037] The stacker body 3 includes a chassis 301. A control console 302 is provided in the middle of the upper end face of the chassis 301. A guide rod 303 is fixedly connected in the middle of the upper end face of the chassis 301. Multiple hydraulic telescopic rods 304 are provided at one end of the upper end face of the chassis 301. The stacker body 3 can control the multiple hydraulic telescopic rods 304 through the control console 302 to raise or lower the stabilizing support 201, thereby allowing the loading and unloading mechanism 2 and the fixing mechanism 1 to be raised and lowered accordingly, completing the handling and loading / unloading of goods.

[0038] A fixing plate 108 is slidably connected to one side of the upper end face of each of the two placement plates 101, and a slider 106 is slidably connected to both sides of the upper end face of each of the two bases 103. This arrangement not only makes the movement of the fixing plate 108 more stable, but also enhances the load-bearing capacity of the fixing plate 108.

[0039] One end of each of the two placement plates 101 is fixedly connected to the second connecting rod 206. This arrangement allows the rotation of the second connecting rod 206 to also cause the placement plates 101 to separate and rotate, thereby detaching them from the cargo pile.

[0040] Both worm gears 203 are fixedly connected to both ends of the upper surface of the stable bracket 201. Both worm gears 203 have a worm wheel 205 meshing with one side of their outer wall. This arrangement makes the rotation of the worm gears 203 more stable and the worm wheel 205 can also be controlled in one direction to prevent the worm wheel 205 from reversing.

[0041] Both sides of the lower end face of the stabilizing bracket 201 are fixedly connected to sleeves 207, and one side of the inner wall of each sleeve 207 is fixedly connected to a connecting plate 208. This arrangement allows the stacker vehicle body 3 to be connected to the stabilizing bracket 201 and control the overall movement and height adjustment of the device.

[0042] A connecting plate 208 is slidably connected to one side of the outer wall of the guide rod 303. This arrangement allows the connecting plate 208 and the loading / unloading mechanism 2 and the fixing mechanism 1 connected thereto to rise and fall vertically along the trajectory of the guide rod 303 without tilting or shifting.

[0043] Working principle: The stacker truck controls the first servo motor 104 via the control console 302 to drive the bidirectional threaded rod 105 to rotate. The rotation of the bidirectional threaded rod 105 causes the two sliders 106 mounted on it to slide on the base 103. When the two sliders 106 slide, they cause the first connecting rod 107 on them to move closer together, causing the fixing plate 108 to slide closer above the placement plate 101. The clamp 111 on the fixing plate 108, which is connected to the spring telescopic rod 110, fixes the goods. When the stacker truck body 3 moves to the stacking site, the placement plate 101 rises to its highest point directly above the goods. After the drop opening 102 is aligned with the goods below, the first connecting rod 107 can be operated to separate to both ends. The fixed plate 108 slides apart, and the goods are then stacked on top of the pile through the drop port 102 with the assistance of the unloading roller 109. The device controls two second servo motors 202 through the control console 302 to drive the worm gear 203 to rotate. The worm gear 203 drives the worm wheel 205 to rotate. When the worm wheel 205 rotates, the rotating shaft 204 fixedly connected to it rotates at both ends of the upper end face of the stable support 201. The second connecting rod 206 fixedly connected to the rotating shaft 204 drives the placement plate 101, which was originally assembled together, to rotate outward from the pile of goods by a certain angle until the fixing mechanism 1 is completely separated from the pile of goods after unloading, so that the fixing mechanism can be separated from the pile of goods in time for subsequent work after unloading.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A forklift truck with automatic unloading function, comprising a fixing mechanism (1), a loading and unloading mechanism (2) and a forklift truck body (3), characterized in that: One end of the loading and unloading mechanism (2) is fixedly connected with a fixing mechanism (1), one end of the loading and unloading mechanism (2) is provided with a platform truck body (3), the fixing mechanism (1) comprises two placing plates (101), the upper end face of the two placing plates (101) is provided with a goods falling port (102) on one side, the upper end face of the two placing plates (101) is fixedly connected with a base (103) on one side, the upper end face of the two bases (103) is provided with a first servo motor (104) in the middle, the output end of the two first servo motors (104) is fixedly connected with a two-way threaded rod (105), the outer wall of the two two-way threaded rods (105) is sleeved with two sliding blocks (106), the inner middle part of the plurality of sliding blocks (106) is rotatably connected with a first connecting rod (107), one end of every two first connecting rods (107) is rotatably connected with a fixed plate (108), the upper end face of the two fixed plates (108) is provided with two material discharging rollers (109) at both ends, the upper end face of the two fixed plates (108) is fixedly connected with two spring telescopic rods (110) on one side, one end of every two spring telescopic rods (110) is fixedly connected with a clamping plate (111).

2. The lift truck with automatic unloading function according to claim 1, characterized in that: The loading and unloading mechanism (2) comprises a stable support (201), the upper end face of the stable support (201) is provided with a second servo motor (202) on both sides, the output end of the two second servo motors (202) is fixedly connected with a worm (203), the upper end face of the stable support (201) is rotatably connected with a rotating shaft (204) at both ends, the outer wall of the two rotating shafts (204) is fixedly connected with a worm gear (205) in the middle, the outer wall of the two rotating shafts (204) is fixedly connected with a second connecting rod (206) on one side.

3. The lift truck with automatic unloading function according to claim 1, characterized in that: The platform truck body (3) comprises a chassis (301), the upper end face of the chassis (301) is provided with a control console (302) in the middle, the upper end face of the chassis (301) is fixedly connected with a guide rod (303) in the middle, the upper end face of the chassis (301) is provided with a plurality of hydraulic telescopic rods (304) on one end.

4. The lift truck with automatic unloading function according to claim 1, characterized in that: The upper end face of the two placing plates (101) is slidably connected with a fixed plate (108) on one side, the upper end face of the two bases (103) is slidably connected with a sliding block (106) on both sides.

5. The lift truck with automatic unloading according to claim 1, characterized in that: One end of the two placing plates (101) is fixedly connected with a second connecting rod (206).

6. The lift truck with automatic unloading according to claim 2, characterized in that: The lower end face of the stable support (201) is fixedly connected with a sleeve (207) on both sides, the inner wall of the two sleeves (207) is fixedly connected with a connecting plate (208) on one side.

7. The lift truck with automatic unloading according to claim 2, characterized in that: The outer wall of the guide rod (303) is slidably connected with a connecting plate (208) on one side.

8. The lift truck with automatic unloading according to claim 3, characterized in that: ​