Automatic discharging mechanism for producing polyurethane sandwich panel
The automated unloading mechanism, utilizing electric push rods, adjustable guide plates, and flexible rubber plates, solves the problems of automated unloading and damage prevention in sandwich panel production, thereby improving production efficiency and equipment adaptability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2026-03-06
AI Technical Summary
In the current production of polyurethane sandwich panels, the unloading process relies heavily on manual labor, has a low level of automation, is difficult to adapt to different specifications of panels, and traditional pushing devices are prone to causing panel skewing, disordered stacking and damage, and are inconvenient to maintain.
An automated unloading mechanism is adopted, including an electric push rod driving a push plate and a detachable rubber plate, combined with an adjustable fixing mechanism and a guide plate, to achieve automatic positioning and flexible buffering of the sandwich panel, thereby improving unloading accuracy and safety.
It enables automated unloading of sandwich panels, ensuring precise positioning and damage-free transport of panels of different specifications, improving production efficiency, equipment adaptability and durability, and reducing maintenance costs.
Smart Images
Figure CN223973374U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sandwich panel production technology, and in particular to an automated unloading mechanism for polyurethane sandwich panel production. Background Technology
[0002] Polyurethane sandwich panels are widely used in construction, cold chain logistics, cleanrooms, and other fields due to their excellent thermal insulation performance, high structural strength, and light weight. In the production process of polyurethane sandwich panels, the formed panels need to undergo multiple steps such as conveying, sorting, alignment, and stacking before packaging or transfer to the next process. Currently, although most production lines have achieved a certain degree of mechanization, there is still a significant reliance on manual labor in the crucial unloading process, especially in the movement and positioning of the panels, where the level of automation is low, limiting overall production efficiency.
[0003] Existing sandwich panel unloading methods mostly rely on manual handling or simple semi-automatic pushing devices. Especially when handling sandwich panels of different specifications, traditional guiding structures are difficult to adapt flexibly, leading to panel misalignment or disordered stacking, affecting subsequent processes. Furthermore, traditional pushing structures are mostly rigid designs lacking cushioning protection, making the panels prone to edge scratches and surface damage when forcibly pushed, reducing the finished product yield. The disassembly and replacement of rubber cushioning components in some equipment is also cumbersome, resulting in low maintenance efficiency, increased downtime and operating costs, and failing to meet the requirements of modern, high-efficiency production.
[0004] Therefore, an automated unloading mechanism for polyurethane sandwich panel production is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides an automated unloading mechanism for the production of polyurethane sandwich panels, which aims to improve the problems of misaligned sandwich panels and accidental damage to sandwich panels during unloading.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: an automated unloading mechanism for polyurethane sandwich panel production, including a workbench, a conveyor belt installed on the top of the workbench, an automatic unloading mechanism provided on the top of the workbench, two limiting posts fixedly connected to the top of the workbench and located on both sides of the conveyor belt respectively, a fixing mechanism provided inside the limiting posts, a connecting post slidably connected inside the limiting posts, a guide plate fixedly connected to one end of the connecting post, and auxiliary components provided on the top of the workbench;
[0007] The automatic feeding mechanism includes an electric push rod, which is installed on the top of the worktable. A push plate is fixedly connected to the output end of the electric push rod. Multiple circular columns are slidably connected inside the push plate. Rubber rings are fixedly connected to the outer side of the circular columns. A groove corresponding to the rubber ring is opened inside the push plate. A rubber plate is fixedly connected to the side of the circular column away from the push plate.
[0008] As a further description of the above technical solution:
[0009] The fixing mechanism includes an outer shell, the outer side of which is fixedly connected to the inside of the limiting post, and an inner shell fixedly connected to the inside of the outer shell. A pin is slidably connected inside the inner shell, a spring is sleeved on the outer side of the pin, and a temporary locking component is provided on the outer side of the pin.
[0010] As a further description of the above technical solution:
[0011] The auxiliary component includes a fixed frame, the bottom of which is fixedly connected to the top of the workbench. A hollow column is fixedly connected to the middle of the fixed frame. A second spring is installed inside the hollow column. A sliding column is slidably connected inside the hollow column. The bottom of the second spring is fixedly connected to the top of the sliding column. A pressure plate is fixedly connected to the bottom of the sliding column. Multiple rollers are installed inside both the pressure plate and the guide plate.
[0012] As a further description of the above technical solution:
[0013] The temporary locking assembly includes a pad, which is fixedly connected to the outside of the pin. A locking block is fixedly connected to the outside of the pad, and a U-shaped slot is provided on the outside of the inner shell.
[0014] As a further description of the above technical solution:
[0015] The rubber ring is engaged inside the groove, and the push plate is slidably connected above the conveyor belt.
[0016] As a further description of the above technical solution:
[0017] The connecting post has multiple circular holes on its outer side, and the pin is inserted into one of the circular holes.
[0018] As a further description of the above technical solution:
[0019] The pad is slidably connected inside the inner shell, and the locking block is slidably connected inside the U-shaped slot.
[0020] As a further description of the above technical solution:
[0021] One end of the spring is fixedly connected to the top of the pad, and the other end of the spring abuts against the inner wall of the inner shell.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, an electric push rod drives a push plate to automatically unload the sandwich panel, while a rubber sheet is detachably fixed to the outside of the push plate. During the pushing process, the rubber sheet makes flexible contact with the material surface, effectively buffering the impact force and preventing damage to the panel surface. The rubber sheet is easy to replace and maintain. Compared with the shortcomings of traditional rigid pushing structures, which are prone to material scratches and inconvenient parts replacement, this solution significantly improves unloading safety and equipment durability.
[0024] 2. In this utility model, a fixing mechanism is set up to achieve sliding adjustment of the connecting column, thereby precisely controlling the distance between the two guide plates to meet the positioning requirements of sandwich panels of different specifications. Combined with the roller structure inside the guide plates and pressure plates, the sandwich panels can be automatically aligned during conveying. Compared with the problems of non-adjustable guide structures or complex adjustment methods in existing technologies, this design effectively improves the convenience of adjustment and the centering accuracy during sandwich panel conveying, enhancing the adaptability and stability of the overall equipment. Attached Figure Description
[0025] Figure 1 This is a three-dimensional schematic diagram of the automated unloading mechanism for the production of polyurethane sandwich panels proposed in this utility model.
[0026] Figure 2 This is an exploded structural diagram of the fixing mechanism of the automated unloading mechanism for polyurethane sandwich panel production proposed in this utility model.
[0027] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0028] Figure 4 This is a schematic diagram of the pressure plate of the automated unloading mechanism for polyurethane sandwich panel production proposed in this utility model.
[0029] Figure 5 This is a schematic diagram of the electric push rod of the automated unloading mechanism for polyurethane sandwich panel production proposed in this utility model.
[0030] Figure 6 for Figure 5 Enlarged diagram of point B in the middle.
[0031] Legend:
[0032] 1. Push plate; 2. Electric push rod; 3. Worktable; 4. Guide plate; 5. Rubber ring; 6. Pressure plate; 7. Roller; 8. Fixing frame; 9. Connecting column; 10. Conveyor belt; 11. Inner shell; 12. Pin; 13. Spring 1; 14. Pad; 15. Limiting column; 16. Circular hole; 17. Locking block; 18. U-shaped slot; 19. Outer shell; 20. Spring 2; 21. Hollow column; 22. Sliding column; 23. Circular column; 24. Rubber plate; 25. Groove. Detailed Implementation
[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0034] Reference Figure 1 - Figure 6 An embodiment of this utility model provides an automated unloading mechanism for the production of polyurethane sandwich panels, including a workbench 3, a conveyor belt 10 installed on the top of the workbench 3, an automatic unloading mechanism on the top of the workbench 3, two limiting posts 15 fixedly connected to the top of the workbench 3 and located on both sides of the conveyor belt 10 respectively, a fixing mechanism is provided inside the limiting posts 15, a connecting post 9 is slidably connected inside the limiting posts 15, a guide plate 4 is fixedly connected to one end of the connecting post 9, and auxiliary components are provided on the top of the workbench 3.
[0035] The automatic feeding mechanism includes an electric push rod 2, which is installed on the top of the workbench 3. The output end of the electric push rod 2 is fixedly connected to a push plate 1. Multiple circular columns 23 are slidably connected inside the push plate 1. Rubber rings 5 are fixedly connected to the outside of the circular columns 23. The push plate 1 has a groove 25 corresponding to the rubber rings 5 inside. A rubber plate 24 is fixedly connected to the side of the circular column 23 away from the push plate 1. The rubber rings 5 are engaged inside the grooves 25. The push plate 1 is slidably connected above the conveyor belt 10.
[0036] The workbench 3 serves as the basic support structure for the entire device, supporting and securing all other components. A conveyor belt 10 is mounted on top of the workbench 3 to transport the sandwich panels, ensuring they reach their designated unloading positions smoothly. Limiting posts 15 are fixed to the top of the workbench 3 and located on both sides of the conveyor belt 10, providing guidance and sliding space for the connecting posts 9. The connecting posts 9 can slide within the limiting posts 15, with one end fixedly connected to a guide plate 4. The guide plate 4's spacing is adjusted to accommodate sandwich panels of different sizes. The guide plate 4 guides the sandwich panels, maintaining their correct orientation during transport and preventing deviation.
[0037] Auxiliary components are mounted on top of the workbench 3 to provide additional support during the pressing and alignment of the sandwich panels. An electric push rod 2 is mounted on top of the workbench 3, its output end fixedly connected to the push plate 1, driving the push plate 1 to reciprocate and automate the pushing and unloading of the sandwich panels. The push plate 1 is located above the conveyor belt 10 and can slide, with multiple circular pillars 23 slidably connected inside. The circular pillars 23 connect rubber plates 24, allowing the rubber plates 24 to be removed and replaced within the push plate 1. Rubber rings 5 are fixedly connected to the outside of the circular pillars 23, providing an interference fit with the grooves 25 inside the push plate 1, ensuring the rubber plates 24 are securely installed and easily replaceable. The grooves 25 are located inside the push plate 1, corresponding to the positions of the rubber rings 5, for snap-fit fixing. The rubber plates 24 are fixed to the side of the circular pillars 23 away from the push plate 1, directly contacting the sandwich panels during unloading, providing cushioning and protection to prevent damage to the sandwich panels.
[0038] Reference Figure 1 - Figure 3 The fixing mechanism includes a housing 19, which is fixedly connected to the inside of the limiting post 15. An inner housing 11 is fixedly connected to the inside of the housing 19. A pin 12 is slidably connected inside the inner housing 11. A spring 13 is sleeved on the outside of the pin 12. A temporary locking component is provided on the outside of the pin 12. The temporary locking component includes a pad 14, which is fixedly connected to the outside of the pin 12. A locking block 17 is fixedly connected to the outside of the pad 14. A U-shaped slot 18 is opened on the outside of the inner housing 11. The pad 14 is slidably connected inside the inner housing 11. The locking block 17 is slidably connected inside the U-shaped slot 18. One end of the spring 13 is fixedly connected to the top of the pad 14. The other end of the spring 13 abuts against the inner wall of the inner housing 11. Multiple circular holes 16 are opened on the outside of the connecting post 9. The pin 12 is inserted into one of the circular holes 16.
[0039] The outer shell 19 is the outermost housing of the fixing mechanism, and its outer side is fixedly connected to the inside of the limiting post 15, serving to support and protect the internal components. An inner shell 11 is fixedly connected inside the outer shell 19. The inner shell 11 provides a sliding channel for the pin 12, enabling smooth movement of the pin 12 within it. The pin 12, slidably connected inside the inner shell 11, is a key component controlling the positioning of the connecting post 9. Locking and releasing the connecting post 9 are achieved by inserting into or removing it from the circular hole 16. A spring 13 is fitted on the outer side of the pin 12, providing a restoring force to ensure that the pin 12 will not move without external force.
[0040] A temporary locking assembly is provided on the outside of the pin 12 to temporarily fix the pin 12 when adjusting the guide plate 4, preventing rebound interference. The temporary locking assembly includes a pad 14, which is fixedly connected to the outside of the pin 12 and slides inside the inner shell 11. It is used to fix the locking block 17 and also to transmit the spring force of the spring 13 to the pin 12. The locking block 17 is fixedly connected to the outside of the pad 14 and can slide inside the U-shaped slot 18, cooperating with it to temporarily lock the pin 12. When the pin 12 is pulled out from the circular hole 16, by rotation, the locking block 17 can be engaged in the U-shaped slot 18, keeping the pin 12 in the pulled-out state, facilitating the adjustment of the guide plate 4. The U-shaped slot 18 is opened on the outside of the inner shell 11 to cooperate with the locking block 17 to complete the temporary locking operation.
[0041] Multiple circular holes 16 are provided on the outer side of the connecting post 9 for positioning with the pin 12. When the pin 12 is inserted into a circular hole 16, the connecting post 9 is fixed, ensuring that the guide plate 4 is stably maintained in the set position after adjustment.
[0042] Reference Figure 1 - Figure 4 The auxiliary components include a fixed frame 8, the bottom of which is fixedly connected to the top of the workbench 3. A hollow column 21 is fixedly connected to the middle of the fixed frame 8. A spring 20 is installed inside the hollow column 21. A sliding column 22 is slidably connected inside the hollow column 21. The bottom of the spring 20 is fixedly connected to the top of the sliding column 22. A pressure plate 6 is fixedly connected to the bottom of the sliding column 22. Multiple rollers 7 are installed inside both the pressure plate 6 and the guide plate 4.
[0043] The fixed frame 8 serves as the supporting base for the auxiliary components. Its bottom is fixedly connected to the top of the workbench 3 to stabilize the entire auxiliary structure and ensure that its position does not shift during operation. A hollow column 21 is fixedly connected to the middle of the fixed frame 8. The hollow column 21 provides vertical sliding space for the sliding column 22 and accommodates the internal spring 20. The spring 20 is installed inside the hollow column 21, and its bottom is fixedly connected to the top of the sliding column 22 to provide downward elastic force, ensuring that the sliding column 22 always maintains a certain clamping force.
[0044] The sliding column 22 is slidably connected inside the hollow column 21, and a pressure plate 6 is fixedly connected to its bottom. Under the action of the spring 20, the pressure plate 6 can automatically press the sandwich panel as it passes, thereby increasing the friction between the sandwich panel and the conveyor belt 10 and effectively preventing the sandwich panel from slipping during the conveying process. Multiple rollers 7 are installed inside the pressure plate 6. The rotation function of the rollers 7 helps the sandwich panel move smoothly while being pressed, reducing frictional resistance and improving the smoothness of the conveying.
[0045] In addition, multiple rollers 7 are also installed inside the guide plate 4. These rollers 7 play a guiding and correcting role when the sandwich panel passes through, ensuring that the sandwich panel is conveyed along the correct trajectory and preventing skewing or jamming.
[0046] Working principle: When using this device, the distance between the two guide plates 4 must first be adjusted according to the size of the sandwich panel. During operation, the pin 12 can be pulled out of the circular hole 16 on the connecting post 9. Then, the pin 12 is rotated so that the locking block 17 on it engages with the U-shaped slot 18. At this point, the pin 12 is temporarily locked and does not require continuous pulling. In this state, the connecting post 9 can slide freely inside the limiting post 15, thereby adjusting the distance between the guide plates 4. The connecting post 9 on the other side is operated in the same way.
[0047] After the two guide plates 4 are adjusted to the appropriate distance, gently pull the pin 12 so that it can rotate inside the inner shell 11. Then rotate the pin 12 in the opposite direction so that the locking block 17 can slide freely in the U-shaped slot 18. After releasing the pin 12, under the action of the spring 13, the pin 12 will automatically insert into the circular hole 16 on the connecting post 9 to complete the locking.
[0048] Subsequently, the sandwich panel is conveyed by conveyor belt 10. When the sandwich panel enters between the two guide plates 4, the sliding column 22 on the pressure plate 6 slides inside the hollow column 21 and is pressed together by the spring 20, thereby increasing the friction between the sandwich panel and the conveyor belt 10 and preventing slippage during transportation. With the assistance of the rollers 7 built into the guide plate 4, the sandwich panel is gradually aligned and conveyed to the position of the automatic unloading mechanism.
[0049] At this time, the electric push rod 2 is activated, driving the push plate 1 to move back and forth, pushing the already aligned sandwich panel to the unloading position. During the unloading process, the rubber plate 24 is in direct contact with the sandwich panel, effectively preventing damage to the sandwich panel.
[0050] After prolonged use, if the rubber plate 24 needs to be replaced, simply pull the circular post 23 on it out of the push plate 1, and reinsert the circular post 23 on the new rubber plate 24 into the push plate 1, ensuring that the rubber ring 5 is engaged in the groove 25 to form an interference fit. At this point, the replacement of the rubber plate 24 is complete.
[0051] 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 embodiments, those skilled in the art can still modify the technical solutions described in the foregoing 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. An automated unloading mechanism for the production of polyurethane sandwich panels, comprising a worktable (3), characterized in that: The top of the workbench (3) is provided with a conveying belt (10), and the top of the workbench (3) is provided with an automatic unloading mechanism, and the top of the workbench (3) is fixedly connected with two limiting columns (15) and is located on both sides of the conveying belt (10) respectively, and the inside of the limiting column (15) is provided with a fixing mechanism, and the inside of the limiting column (15) is slidably connected with a connecting column (9), and one end of the connecting column (9) is fixedly connected with a guide plate (4), and the top of the workbench (3) is provided with an auxiliary assembly. The automatic unloading mechanism comprises an electric push rod (2), the electric push rod (2) is installed on the top of the workbench (3), the output end of the electric push rod (2) is fixedly connected with a push plate (1), the inside of the push plate (1) is slidably connected with a plurality of circular columns (23), the outside of the circular column (23) is fixedly connected with a rubber ring (5), the inside of the push plate (1) is provided with a groove (25) corresponding to the rubber ring (5), and the side away from the push plate (1) of the circular column (23) is fixedly connected with a rubber plate (24).
2. The automated unloading mechanism for polyurethane sandwich panel production according to claim 1, characterized in that: The fixing mechanism comprises an outer shell (19), the outer shell (19) is fixedly connected in the inside of the limiting column (15), the inside of the outer shell (19) is fixedly connected with an inner shell (11), the inside of the inner shell (11) is slidably connected with a bolt (12), the outside of the bolt (12) is sleeved with a spring (13), and the outside of the bolt (12) is provided with a temporary locking assembly.
3. The automated unloading mechanism for polyurethane sandwich panel production according to claim 1, characterized in that: The auxiliary assembly comprises a fixed frame (8), the bottom of the fixed frame (8) is fixedly connected on the top of the workbench (3), the middle of the fixed frame (8) is fixedly connected with a hollow column (21), the inside of the hollow column (21) is provided with a spring (20), the inside of the hollow column (21) is slidably connected with a sliding column (22), the bottom of the spring (20) is fixedly connected on the top of the sliding column (22), the bottom of the sliding column (22) is fixedly connected with a pressing plate (6), and the inside of the pressing plate (6) and the guide plate (4) is installed with a plurality of rollers (7).
4. The automated unloading mechanism for polyurethane sandwich panel production according to claim 2, characterized in that: The temporary locking assembly comprises a backing plate (14), the backing plate (14) is fixedly connected on the outside of the bolt (12), the outside of the backing plate (14) is fixedly connected with a clamping block (17), and the outside of the inner shell (11) is provided with a U-shaped clamping groove (18).
5. The automated unloading mechanism for polyurethane sandwich panel production according to claim 1, characterized in that: The rubber ring (5) is clamped in the groove (25), and the push plate (1) is slidably connected above the conveying belt (10).
6. The automated unloading mechanism for polyurethane sandwich panel production according to claim 2, characterized in that: The outside of the connecting column (9) is provided with a plurality of circular holes (16), and the bolt (12) is inserted into one of the circular holes (16).
7. The automated unloading mechanism for polyurethane sandwich panel production according to claim 4, characterized in that: The backing plate (14) is slidably connected in the inside of the inner shell (11), and the clamping block (17) is slidably connected in the U-shaped clamping groove (18).
8. The automated unloading mechanism for polyurethane sandwich panel production according to claim 4, characterized in that: One end of the spring (13) is fixedly connected on the top of the backing plate (14), and the other end of the spring (13) abuts against the inner wall of the inner shell (11).