An automatic loading and unloading stacking device
By combining a frame-type support and a lifting mechanism, the paper pulp molded products can be transferred without damage and automatically, solving the problems of product damage caused by mechanical contact and insufficient automation, and improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HETRUN CHEMICAL LTD CO
- Filing Date
- 2025-06-13
- Publication Date
- 2026-06-19
AI Technical Summary
Existing stacking equipment is prone to product damage due to mechanical contact during the transfer of pulp molded products, and its level of automation is insufficient, making it difficult to balance production efficiency and product quality.
It adopts a frame-type support design, combined with a lifting mechanism and a double-layer conveyor mechanism. The support components lift the materials to achieve progressive lifting and precise stacking. With the addition of adjustment components and belt drive structure, it ensures damage-free material transfer and automated process.
It achieves lossless stacking, improves production efficiency, ensures product quality, and is suitable for automated transfer of various lightweight and easily deformable materials, reducing operation and maintenance costs.
Smart Images

Figure CN224377051U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of material transfer equipment technology, specifically to an automatic loading and unloading stacking device. Background Technology
[0002] In the production of molded pulp products, drying and transfer are crucial steps connecting the molding process and post-processing. Molded pulp materials, made from renewable resources such as waste paper and plant fibers, are molded into three-dimensional structures, possessing environmentally friendly and biodegradable characteristics, and are widely used in packaging, cushioning materials, and other fields. However, due to its lightweight, porous nature and relatively low mechanical strength, traditional rigid clamping mechanisms or vacuum suction cups commonly used in industrial transfer equipment are prone to causing product deformation, surface scratches, or structural damage, making it difficult to meet the transfer requirements of molded pulp products.
[0003] In the prior art, there has been some exploration of automated equipment for material stacking. For example, patent publication number CN201610060871.1 discloses an automatic tray stacking and recycling device, which uses a lifting mechanism to raise the stacked materials layer by layer and release the new material after moving it under the stack to achieve stacking. However, when releasing the material, the gravity of the upper layer of material directly acts on the lower stacked product. Repeated impacts can easily cause indentations or collapses in pulp molded products due to local stress concentration, especially for hollow structures or thin-walled parts where the risk of damage is higher.
[0004] Another patent, CN202021198956.4, proposes an automatic stacking and collection device for pulp molding. It uses a pushing mechanism to push the molded products from the conveyor line to the collection area, where they are naturally stacked by gravity. While this method avoids mechanical contact damage, it has the following drawbacks: firstly, the stacking height is limited by the product's free-fall stability, making it prone to misalignment or tipping; secondly, it requires periodic manual intervention to transfer the stacked products, making fully automated production impossible and hindering the improvement of production efficiency.
[0005] In summary, existing stacking equipment, when used in the transfer of pulp molded products, either causes product damage due to mechanical forces or lacks sufficient automation due to reliance on manual intervention, making it difficult to balance production efficiency and product quality. Utility Model Content
[0006] In view of this, the present invention provides an automatic loading and unloading stacking device, which can automatically stack dried pulp molding and automatically transfer it after stacking.
[0007] To solve the above-mentioned technical problems, this utility model provides an automatic loading and unloading stacking device, including a support frame, which is a frame structure and serves as the main support structure of the device. The frame structure of the support frame not only enables lightweight design and reduces manufacturing energy consumption, but also provides space for the internal mechanical structure.
[0008] The first conveying mechanism is horizontally placed on a support, and two first conveying components are symmetrically arranged on it. The material is placed between the two first conveying components, which can be used to transfer the material. The first conveying mechanism is also provided with an adjustment component, which is connected to the two first conveying components to adjust the relative movement or back-to-back movement of the two first conveying components. The back-to-back movement of the two first conveying components can provide clearance for the material to move downward.
[0009] The lifting mechanism is vertically fixed on the support and located between the two first conveying components. A support component is fixed on the lifting mechanism. The lifting mechanism can drive the support component to move up and down. When the support component moves upward, it can lift the material, and the support component can support the material to move up and down.
[0010] The second conveying mechanism is horizontally placed on the support and below the first conveying mechanism. Two second conveying components are symmetrically arranged on it. A lifting mechanism is also located between the two second conveying components. The first and second conveying components rotate in the same direction and have an overlapping area on the support. This overlapping area is used to transfer materials stacked on the support.
[0011] Both the first and second conveying components are belt-driven structures, resulting in greater friction between the conveying components and the material.
[0012] The adjustment assembly includes two sliders that are slidably mounted on the bracket. The two sliders can slide relative to each other or away from each other. Each slider is connected to a first transmission component, which can drive the first transmission component to move.
[0013] The two sliders are also equipped with rotating rods on the support. The rotating rods are located at the center of the two sliders and have gears at their ends. The rotating rods can drive the gears to rotate. The gears are equipped with racks on the opposite surfaces between the two sliders. The teeth of the racks mesh with the teeth of the gears. The two racks are arranged symmetrically about the axis of the rotating rod. The two racks can slide relative to each other or slide away from each other through the gears.
[0014] The bracket is also fixed with a telescopic component, which is used to pull the slider back and forth, and the telescopic component can indirectly drive the gear to rotate.
[0015] The lifting mechanism includes a threaded rod that is vertically rotatably mounted on a bracket. The threaded rod is located at the bottom of the first conveying mechanism and on the side of the second conveying mechanism closer to the first conveying mechanism. Corresponding to the threaded rod, a movable plate is also vertically slidable on the bracket. The threaded rod can drive the movable plate to move up and down. A support member is provided on the side of the movable plate, which can drive the support member to move up and down.
[0016] The lifting mechanism also includes a drive motor mounted on the bracket. The output shaft of the drive motor and the end of the threaded rod are both equipped with synchronous pulleys. The two synchronous pulleys are connected by a synchronous belt, and the drive motor can indirectly drive the threaded rod to rotate.
[0017] The support includes a support plate horizontally arranged on the side of the movable plate. The support plate is located on the side of the movable plate closer to the second conveying mechanism. Several reinforcing ribs are also provided between the support plate and the movable plate. The reinforcing ribs are located at the bottom of the support plate. When the support plate is moved to the bottom, the top surface of the support plate is lower than the top surface of the second conveying assembly. The support plate can transfer materials to the second conveying mechanism.
[0018] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects:
[0019] 1. Damage-free stacking ensures product quality:
[0020] The lifting mechanism drives the support components to lift materials precisely, avoiding the problem of the upper layer material directly impacting the lower layer product due to gravity, which is common in traditional stacking equipment. The support components use a gradual lifting method instead of free-fall stacking, significantly reducing the risk of indentation and collapse of pulp molded products caused by localized stress concentration. It is especially suitable for the gentle transfer of hollow structures or thin-walled parts, perfectly matching the fragile and easily damaged physical characteristics of pulp molded materials.
[0021] 2. Full-process automation improves production efficiency:
[0022] The equipment integrates a double-layer conveyor mechanism and an intelligent adjustment system to achieve integrated "stacking-transfer" operations.
[0023] Dynamic adjustment: The adjustment component drives the two first conveying components to separate in opposite directions through a gear and rack, providing precise clearance space for the material to move downward and ensuring that the stacking process does not require manual intervention;
[0024] Automated transfer: After stacking, the support components move down to the overlapping area of the second conveyor mechanism, and the materials are automatically transferred to the next process, completely eliminating the manual material handling process and improving production continuity.
[0025] 3. Precise alignment to prevent stacking misalignment:
[0026] The adjustment component adopts a centrally symmetrical gear and rack structure, which achieves synchronous counter-movement of the two first conveying components through linkage with a rotating rod, ensuring that the material always falls in the center. Combined with the high friction characteristics of the belt drive component, it effectively prevents material slippage or tilting, improves stacking neatness compared to traditional equipment, and significantly reduces adjustment costs in subsequent packaging or processing stages.
[0027] 4. Flexible adaptation, expanding application scenarios:
[0028] Adjustable size: The telescopic component drives the adjustment assembly, which can quickly adapt to the stacking requirements of pulp molded products of different specifications;
[0029] Height controllable: The lifting mechanism composed of the threaded rod and the drive motor supports micron-level precision adjustment of the support components and is compatible with single-layer material thickness and multi-layer stacking height;
[0030] Material compatibility: The belt drive structure replaces rigid clamping, avoiding scratches on the product surface, and is also suitable for stacking other lightweight and easily deformable materials (such as foam and textiles).
[0031] 5. Structural optimization reduces operation and maintenance costs:
[0032] Lightweight design: The frame support reduces material usage while ensuring strength, thereby reducing equipment weight and energy consumption;
[0033] Modular maintenance: Core components such as adjustment components and lifting mechanisms adopt independent modular design, and faulty parts can be quickly replaced, reducing maintenance time by more than half;
[0034] Wear-resistant enhancement: The reinforcing ribs at the bottom of the support components improve load-bearing capacity, extend equipment service life, and reduce overall operation and maintenance costs. Attached Figure Description
[0035] Figure 1 This is a schematic diagram of the structure of an automatic loading and unloading stacking device according to the present invention;
[0036] Figure 2 This utility model Figure 1 Schematic diagram of the structure at point A;
[0037] Figure 3 This is a structural schematic diagram of the lifting mechanism of this utility model in cross-section;
[0038] Figure 4 This utility model Figure 3 A schematic diagram of the structure at point B.
[0039] Explanation of reference numerals in the attached figures:
[0040] 100. Bracket;
[0041] 200. First transmission mechanism; 201. First transmission component;
[0042] 210. Adjustment component; 211. Slider; 212. Rotating rod; 213. Gear; 214. Rack; 215. Telescopic component;
[0043] 300. Second transmission mechanism; 301. Second transmission component;
[0044] 400. Lifting mechanism; 401. Threaded rod; 402. Movable plate; 403. Drive motor; 404. Synchronous belt;
[0045] 500. Support components. Detailed Implementation
[0046] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the appendices of the embodiments of this utility model. Figure 1-4 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.
[0047] This embodiment provides an automatic loading, unloading, and stacking device, such as... Figure 1 , 3 As shown: It includes a support 100, which is a frame structure and serves as the main support structure for the equipment. The frame structure of the support 100 not only enables lightweight design and reduces manufacturing energy consumption, but also provides space for the internal mechanical structure. The support 100 also has two first transmission components 201 horizontally arranged on it. The two first transmission components 201 are symmetrically arranged, and the support 100 also has an adjustment component 210 corresponding to the two first transmission components 201. The adjustment component 210 is connected to the two first transmission components 201 to drive the two first transmission components 201 to move relative to each other or in opposite directions. The support 100 also has a vertical lifting mechanism 400 corresponding to the two first transmission components 201. The lifting mechanism 400 is located below the end of the first transmission mechanism 201 and between the two first transmission components 201. The lifting mechanism 400 is connected to a support member 500, and the operation of the lifting mechanism 400 can drive the support member 500 to move up and down.
[0048] When the material moves to the end of the first conveying mechanism 200, the lifting mechanism 400 first drives the support member 500 to move upward, so that the support member 500 can lift the material that has moved above the support member 500. Then, the adjustment mechanism is controlled to make the two first conveying components 201 move in opposite directions, so that the lifting mechanism 400 can indirectly drive the material to move downward. Then, the adjustment mechanism drives the two first conveying components 201 to reset, so that the next material can be stacked.
[0049] When the next material moves to the end of the first conveying mechanism 200, the two first conveying components 201 can be moved in opposite directions by the adjustment mechanism, so that the material can fall naturally between the two first conveying components 201 and fall on the top of the material on the support 500, thus forming a stacking effect. Then, by controlling the support 500 to move down a certain distance and controlling the second conveying component 301 to reset, it can be used to stack the next material.
[0050] It is worth mentioning that a second conveying mechanism 300 is also horizontally installed on the support frame 100, such as... Figure 1 , 3 As shown: The second conveying mechanism 300 is located below the first conveying mechanism 200. There is an overlapping area between the ends of the opposite surfaces of the first conveying mechanism 200 and the second conveying mechanism 300. The first conveying mechanism 200 includes two second conveying components 301 disposed on the support 100. The two second conveying components 301 are symmetrical to each other and rotate in the same direction as the first conveying component 201. After the support member 500 is lowered to the lowest position on the lifting mechanism 400, the upper surface of the support member 500 is lower than the upper surface of the second conveying component 301.
[0051] Furthermore, the lifting mechanism 400 is located at the end of the second conveying component 301 near the first transmission mechanism, while the support member 500 is located on the lifting mechanism 400 near the second conveying component 301. That is, when the number of materials on the support member 500 reaches the predetermined storage capacity, the lifting mechanism 400 will drive the support member 500 to move down to the bottom. At this time, multiple materials will fall between the two second conveying components 301, and the second conveying mechanism 300 can then transfer the stacked materials to the next process.
[0052] Specifically, the support 100 is also equipped with an extension plate, on which a slide rail is provided. Two sliders 211 slide on the slide rail, and slide rails are also provided on both sides of the support 100. First conveying components 201 are slidably mounted on both sides of the support 100, such as... Figure 2As shown: A vertically rotatable rotating rod 212 is also provided on the extension plate. A gear 213 is coaxially provided on the top of the rotating rod 212. The rotating rod 212 and the gear 213 can rotate together on the extension plate. Corresponding to the gear 213, racks 214 are provided on the opposite surfaces of the two sliders 211. The teeth on the racks 214 mesh with the teeth of the gears 213. The two racks 214 are arranged symmetrically along the axis of the rotating rod 212. That is, the rotation of the gear 213 can drive the two racks 214 to move relative to each other or in opposite directions. The end of the bracket 100 corresponding to the slider 211 is also provided with a telescopic mechanism. The telescopic component 215 can be configured as a pneumatic push rod or a pneumatic telescopic rod. That is, the telescopic component 215 has a piston rod, which is connected to one of the sliders 211. When the telescopic component 215 extends or retracts, it can drive one of the sliders 211 to slide on the slide rail, thereby driving the gear 213 to rotate. This, in turn, can drive the two sliders 211 to move relative to each other or in opposite directions. The two sliders 211 are respectively connected to the corresponding first transmission components 201, thereby enabling the two first transmission components 201 to move relative to each other or in opposite directions.
[0053] Preferably, the lifting mechanism 400 includes a threaded rod 401 vertically disposed on the bracket 100, such as... Figure 4 As shown: The two ends of the threaded rod 401 are connected to the bracket 100 via bearing seats, allowing the threaded rod 401 to rotate on the bracket 100. A drive motor 403 is also fixed on the bracket 100. The output shaft of the drive motor 403 and the bottom end of the threaded rod 401 are both coaxially equipped with synchronous belts 404 pulleys. A synchronous belt 404 connects the two synchronous belts 404 pulleys. When the drive motor 403 operates, it can drive the threaded rod 401 to rotate via the synchronous belts 404 pulleys and the synchronous belt 404. Correspondingly, the threaded rod 401 is also... The bracket 100 is vertically provided with two slide rails located on the two threaded rods 401. A movable plate 402 is slidably provided between the two slide rails. A threaded hole is vertically provided through the movable plate 402. The threaded rod 401 passes through the threaded hole and is connected to the movable plate 402. Rotation of the threaded rod 401 can drive the movable plate 402 to move up and down. A support member 500 is provided on the side of the movable plate 402 near the second conveying component 301. Moving the movable plate 402 up and down can drive the support member 500 to move up and down.
[0054] In summary, both the first conveyor assembly 201 and the second conveyor assembly 301 are belt-driven structures. The belt can increase the friction between the belt and the bottom of the material, thereby making the material run more stably, and the cost of purchasing the belt is relatively low.
[0055] Meanwhile, the support member 500 includes a support plate horizontally arranged on the side of the movable plate 402. Several reinforcing ribs are also provided between the support plate and the movable plate 402. The reinforcing ribs are located at the bottom of the support plate. Limiting structures are also provided on both sides of the support plate. The limiting structures are used to limit the stacked materials and prevent the stacked materials from shaking on the support plate when they fall downwards.
[0056] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0057] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.
Claims
1. An automatic loading and unloading stacking apparatus, characterized by: include; The bracket (100) is a frame structure and serves as the main support structure for the equipment. A first conveying mechanism (200) is horizontally placed on a support (100), and two first conveying components (201) are symmetrically arranged on it. The material is placed between the two first conveying components (201). The first conveying mechanism (200) is also provided with an adjustment component (210), which is connected to the two first conveying components (201) for adjusting the relative movement or opposite movement of the two first conveying components (201). The lifting mechanism (400) is vertically fixed on the bracket (100) and located between the two first conveying components (201). A support member (500) is fixed on the lifting mechanism (400). The lifting mechanism (400) can drive the support member (500) to move up and down. When the support member (500) moves upward, it can lift the material.
2. The automatic loading and unloading stacking equipment as described in claim 1, characterized in that: The support (100) is also provided with a second conveying mechanism (300), which is horizontally placed on the support (100) and located below the first conveying mechanism (200). Two second conveying components (301) are symmetrically arranged on it. The first conveying component (201) and the second conveying component (301) rotate in the same direction, and the first conveying component (201) and the second conveying component (301) have an overlapping area on the support (100).
3. The automatic loading and unloading stacking equipment as described in claim 2, characterized in that: Both the first transmission component (201) and the second transmission component (301) are belt-driven structures.
4. The automatic loading and unloading stacking equipment as described in claim 1, characterized in that: The adjustment assembly (210) includes two sliders (211) slidably disposed on the bracket (100). The two sliders (211) can slide relative to each other or away from each other. Each slider (211) is connected to a first transmission assembly (201).
5. An automatic loading and unloading stacking device as described in claim 4, characterized in that: A rotating rod (212) is provided on the bracket (100) for each of the two sliders (211). The rotating rod (212) is located at the center of the two sliders (211). A gear (213) is provided at the end of the rotating rod (212). A rack (214) is provided on the opposite surface between the two sliders (211) for each gear (213). The teeth of the rack (214) mesh with the teeth of the gear (213). The two racks (214) are arranged in a centrally symmetrical manner about the axis of the rotating rod (212).
6. The automatic loading and unloading stacking equipment as described in claim 5, characterized in that: The bracket (100) is also fixedly provided with a telescopic component (215), which is used to pull the slider (211) back and forth.
7. The automatic loading and unloading stacking equipment as described in claim 1, characterized in that: The lifting mechanism (400) includes a threaded rod (401) that is vertically rotatably mounted on the bracket (100). The threaded rod (401) is located at the bottom of the first conveying mechanism (200) and on the side of the second conveying mechanism (300) close to the first conveying mechanism (200). Corresponding to the threaded rod (401), a movable plate (402) is also vertically slidably mounted on the bracket (100). A support member (500) is provided on the side of the movable plate (402).
8. The automatic loading and unloading stacking equipment as described in claim 7, characterized in that: The lifting mechanism (400) also includes a drive motor (403) mounted on the bracket (100). The output shaft of the drive motor (403) and the end of the threaded rod (401) are both provided with synchronous belt (404) pulleys, and the two synchronous belt (404) pulleys are connected to each other by a synchronous belt (404).
9. An automatic loading and unloading stacking device as described in claim 7, characterized in that: The support member (500) includes a support plate horizontally arranged on the side of the movable plate (402). A number of reinforcing ribs are also provided between the support plate and the movable plate (402). The reinforcing ribs are located at the bottom of the support plate, and when the support plate moves down to the bottom, the top surface of the support plate is lower than the top surface of the second conveying assembly (301).
Citation Information
Patent Citations
A device and method for automatically recovering and stacking trays
CN105731084B
Automatic stacking and collecting device in pulp molding
CN212831528U