Bed sheet and quilt cover sorting equipment
By combining the structural design of the lifting plate and electrode plate with image scanning technology, the problem of high sorting error rate in bed sheet and duvet cover sorting equipment has been solved, and a highly efficient and accurate sorting process has been achieved.
Patent Information
- Application Number
- CN202520031820.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-07
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-01-07
AI Technical Summary
Existing bed sheet and duvet cover sorting equipment struggles to accurately determine the quality of bed sheets and duvet covers, resulting in a high sorting error rate and potential confusion, which impacts production efficiency.
The system employs a structural design that combines a lifting plate and an electrode plate, along with a pneumatic cylinder and an electric motor to control the rotation of the rotating rollers. It sorts bed sheets and duvet covers based on their quality differences and uses an image scanner to capture high-definition images for precise classification.
It enables accurate sorting of bed sheets and duvet covers, reduces sorting error rate, avoids chaos in the sorting process, and greatly improves sorting efficiency.
Smart Images

Figure CN223888493U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of bed sheet and duvet cover sorting equipment, specifically a bed sheet and duvet cover sorting equipment. Background Technology
[0002] Whether during the production process of bed sheets and duvet covers or after use in hospitals or hotels, bed sheets and duvet covers need to be washed. After washing, bed sheets and duvet covers need to be folded and sorted. Sorting can separate bed sheets and duvet covers and classify them into categories, making the storage area more tidy and orderly.
[0003] Chinese patent CN218394742U discloses a bed sheet and duvet cover sorting device, belonging to the field of sorting equipment technology. This invention includes an operating platform and a collection rack. Two mounting holes are equidistantly spaced on one side of the outer wall of the collection rack. A round rod is connected to the inner wall of each mounting hole via a bearing. A limiting block is fixedly connected to the outer wall of each round rod. A first mounting opening is opened on one side of the outer wall of each limiting block. An iron block is fixedly connected to the inner wall of each first mounting opening. When transporting bed sheets and duvet covers, rotating the limiting blocks on the round rods causes the iron blocks to adhere to the magnetic blocks, thus limiting the collection rack and preventing it from falling off during transport and contaminating the bed sheets and duvet covers.
[0004] Existing bed sheet and duvet cover sorting equipment cannot accurately determine the quality of bed sheets and duvet covers by simply scanning them. This results in a high sorting error rate, which can disrupt the production process and cause confusion. Correcting errors may require stopping the production line or reallocating resources, significantly reducing overall production efficiency. Therefore, a bed sheet and duvet cover sorting device is proposed to address these issues. Utility Model Content
[0005] In order to overcome the shortcomings of the existing technology and solve the problems mentioned in the background, this utility model proposes a bed sheet and duvet cover sorting device.
[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A bed sheet and duvet cover sorting device of this utility model includes a base, four columns fixedly connected to the base, and a lifting plate fitted onto the four columns. Four springs are fixedly connected between the lifting plate and the base, and each spring is fitted onto a corresponding column. Two first fixing plates are fixedly connected to the lifting plate, and a first support frame is fixedly connected to the two first fixing plates. A first rotating rod is rotatably mounted at both ends of the first support frame. A first rotating roller is fitted onto each of the two first rotating rods. A first conveyor belt is fitted onto the outer surface of the two first rotating rollers. A first motor is mounted on the side of the first support frame. The output end of the motor is connected to one end of the first rotating rod. A vertical plate is fixedly attached to the lifting plate. A first electrode plate and a second electrode plate are installed on the vertical plate from top to bottom. A square plate is fixedly attached to the base. A pneumatic cylinder is installed on the square plate. A pneumatic rod is fitted to the working end of the pneumatic cylinder. A mounting plate is fixedly attached to the end of the pneumatic rod. A third electrode plate is installed on the mounting plate. The first and second electrode plates are electrically connected to the third electrode plate. When sorting bed sheets and duvet covers, the washed and folded bed sheets or duvet covers are first placed on the inclined guide hopper in sequence. Then, the third motor is started, causing the rotating wheel to drive the swing plate to rotate, thereby tilting the inclined guide hopper. The opening of the guide hopper is opened, allowing items on the inclined guide hopper to fall onto the first conveyor belt. The opening of the inclined guide hopper is then resealed. After the items fall onto the first conveyor belt, the spring is compressed, causing the lifting plate to move vertically downwards. This, in turn, causes the first and second electrode plates to move downwards as well. Once the first and second electrode plates have quickly completed their downward movement, the pneumatic cylinder is activated, causing the mounting plate to move the third electrode plate. When the third electrode plate comes into contact with the second electrode plate, it indicates that the lifting plate has not descended significantly, meaning that the items falling are washed bed sheets. Simultaneously, the contact between the third and second electrode plates energizes the first motor, causing the first rotating... The roller rotates forward, forcing the first conveyor belt to rotate as well, thus conveying the fallen sheets. When an item falling onto the first conveyor belt causes the lifting plate to descend relatively significantly, it indicates that the fallen sheet is a washed sheet. The third electrode plate will then contact the first electrode plate, and the first motor will reverse, causing the first rotating roller to reverse as well, forcing the first conveyor belt to move accordingly. This allows the fallen duvet cover to be conveyed in another direction, enabling accurate sorting based on the quality of the sheets and duvet covers, reducing the sorting error rate, avoiding confusion during the sorting process, and greatly improving sorting efficiency.
[0007] Preferably, a support column is fixedly connected to the base, and an inclined guide hopper is fixedly connected to the support column. A third motor is installed on the side wall of the inclined guide hopper, and a third rotating rod is connected to the output end of the third motor. A rotating wheel is fitted on the third rotating rod, and a swing plate is fixed to the outer surface of the rotating wheel. During sorting, the third motor is started, causing the rotating wheel to drive the swing plate to rotate, thereby opening the opening of the inclined guide hopper and allowing the items on the inclined guide hopper to automatically fall onto the first conveyor belt, thus achieving the purpose of automatic feeding and facilitating subsequent continuous sorting operations.
[0008] Preferably, support plates are fixed to both sides of the base, and two second fixed plates are fixed to each support plate. A second support frame is fixed to the top of the two second fixed plates. A second rotating rod is rotatably installed at both ends of the second support frame. A second rotating roller is fitted on the outer surface of each second rotating rod. A second conveyor belt is fitted on the outer surface of the two second rotating rollers. A second motor is installed on one side wall of each of the two second support frames. The output end of the second motor is connected to one end of the second rotating rod. During the sorting process, items transported by the first conveyor belt will fall onto the second conveyor belt. The second motor is started, causing the second rotating roller to drive the second conveyor belt to rotate, thereby enabling the continued transport of sorted sheets or duvet covers, facilitating subsequent classification and sorting.
[0009] Preferably, a first baffle is fixed to one side of the top of the first support frame, and a second baffle is fixed to one side of the top of each of the two second support frames. A controller is installed on one of the second baffles, and a rectangular plate is fixed to each of the two second baffles. When using this device, by setting the first baffle and the second baffle, the bed sheet or duvet cover can be prevented from falling off during the conveying process.
[0010] Preferably, each of the rectangular plates is equipped with an LED light and an image scanner. The two image scanners are connected by wires, and the LED lights, image scanners, and controllers are electrically connected. When using this device, the image scanners capture high-definition images of the sheets and duvet covers, including details such as color, texture, and shape. Through high-precision image processing and recognition technology, accurate classification of the sheets and duvet covers can be achieved, avoiding classification errors. The LED lights provide illumination for the sheets and duvet covers, ensuring high brightness and maintaining image clarity and detail during the scanning process.
[0011] The advantages of this utility model are:
[0012] 1. In sorting bed sheets and duvet covers, this utility model first places the washed and folded sheets or duvet covers onto the inclined guide hopper. Then, the third motor is started, causing the rotating wheel to drive the swing plate to rotate, thereby opening the opening of the inclined guide hopper and allowing the items on the inclined guide hopper to fall onto the first conveyor belt. The opening of the inclined guide hopper is then resealed. After the items fall onto the first conveyor belt, the spring is compressed, and the lifting plate moves vertically downward. This causes the vertical plate to move the first and second electrode plates downward as well. After the first and second electrode plates have quickly completed their downward movement, the pneumatic cylinder is activated, causing the mounting plate to move the third electrode plate. When the third electrode plate moves to contact the second electrode plate, it indicates that the downward movement of the lifting plate is not significant, indicating that the items that have fallen are washed sheets or duvet covers. When the bed sheet comes into contact with the second electrode plate, the first motor is energized, causing the first rotating roller to rotate forward. This forces the first conveyor belt to rotate as well, thus conveying the fallen bed sheet. When the falling item causes the lifting plate to descend relatively significantly, it indicates that the fallen item is a washed bed sheet. The third electrode plate then comes into contact with the first electrode plate, and the first motor reverses its operation, causing the first rotating roller to rotate in reverse. This forces the first conveyor belt to move as well, thus conveying the fallen duvet cover in another direction. This allows for accurate sorting of bed sheets and duvet covers based on their quality, reducing sorting errors, preventing confusion during sorting, and greatly improving sorting efficiency.
[0013] 2. When using this device, by setting up the image scanner, high-definition images of bed sheets and duvet covers are captured, including details such as color, texture, and shape. Through high-precision image processing and recognition technology, accurate classification of bed sheets and duvet covers can be achieved, avoiding classification errors. By setting up LED lights, it is convenient to illuminate the bed sheets and duvet covers, providing high-brightness light to ensure the clarity and detail of the images during the scanning process. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the device;
[0016] Figure 2 This is a partial three-dimensional structural diagram of the device;
[0017] Figure 3 This is a schematic diagram of the three-dimensional structure of the sorting mechanism;
[0018] Figure 4 A cross-sectional three-dimensional structural diagram of the sorting mechanism;
[0019] Figure 5 This is a schematic diagram of the three-dimensional structure of the conveying component.
[0020] In the diagram: 1. Base; 2. Column; 3. Lifting plate; 4. Spring; 5. First fixed plate; 6. First support frame; 7. First rotating rod; 8. First rotating roller; 9. First conveyor belt; 10. First motor; 11. Vertical plate; 12. First electrode plate; 13. Second electrode plate; 14. Square plate; 15. Pneumatic cylinder; 16. Pneumatic rod; 17. Mounting plate; 18. Third electrode plate; 19. Support column; 20. Inclined guide hopper; 21. Third motor; 22. Third rotating rod; 23. Rotating wheel; 24. Swing plate; 25. First baffle; 26. Support plate; 27. Second fixed plate; 28. Second support frame; 29. Second rotating rod; 30. Second rotating roller; 31. Second conveyor belt; 32. Second motor; 33. Second baffle; 34. Controller; 35. Rectangular plate; 36. LED light; 37. Image scanner; 38. Wire. Detailed Implementation
[0021] 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 scope of protection of the present utility model.
[0022] Please see Figure 1-4As shown, a bed sheet and duvet cover sorting device includes a base 1, four columns 2 fixedly connected to the base 1, a lifting plate 3 fitted onto the four columns 2, four springs 4 fixedly connected between the lifting plate 3 and the base 1, and each spring 4 correspondingly fitted onto a column 2. Two first fixing plates 5 are fixedly connected to the lifting plate 3, and a first support frame 6 is fixedly connected to the two first fixing plates 5. First rotating rods 7 are rotatably mounted at both ends of the first support frame 6, and first rotating rollers 8 are fitted onto the two first rotating rods 7. A first conveyor belt 9 is fitted onto the outer surface of the two first rotating rollers 8. The side of the first support frame 6... A first motor 10 is installed on the shield, and the output end of the first motor 10 is connected to one end of the first rotating rod 7. A vertical plate 11 is fixedly connected to the lifting plate 3. A first electrode plate 12 and a second electrode plate 13 are installed on the vertical plate 11 from top to bottom. A square plate 14 is fixedly connected to the base 1. A pneumatic cylinder 15 is installed on the square plate 14. A pneumatic rod 16 is assembled on the working end of the pneumatic cylinder 15. A mounting plate 17 is fixedly connected to the end of the pneumatic rod 16. A third electrode plate 18 is installed on the mounting plate 17. The first electrode plate 12 and the second electrode plate 13 are electrically connected to the third electrode plate 18 respectively.When sorting bed sheets and duvet covers, since bed sheets are relatively lighter than duvet covers, they can be sorted according to their weight. During the sorting process, the washed and folded bed sheets or duvet covers are first placed sequentially on the inclined guide hopper 20. Then, the third motor 21 is started, causing the rotating wheel 23 to drive the swing plate 24 to rotate, thereby opening the opening of the inclined guide hopper 20 and allowing the items on the inclined guide hopper 20 to fall onto the first conveyor belt 9. The opening of the inclined guide hopper 20 is then resealed. After the items fall onto the first conveyor belt 9, the spring 4 is compressed, and the lifting plate 3 moves vertically downwards. This causes the vertical plate 11 to move the first electrode plate 12 and the second electrode plate 13 downwards as well. After the first electrode plate 12 and the second electrode plate 13 have quickly completed their downward movement, the pneumatic cylinder 15 is activated, causing the pneumatic rod 16 to move the mounting plate 17 and the third electrode plate 18. When the third electrode plate 18 moves to contact the second electrode plate 13... When the lifting plate 3 descends only slightly upon contact with the second electrode plate 13, it indicates that the fallen item is a washed sheet. Simultaneously, the contact between the third electrode plate 18 and the second electrode plate 13 energizes the first motor 10, causing the first rotating roller 8 to rotate forward, which in turn forces the first conveyor belt 9 to rotate, thus conveying the fallen sheet. When the falling item causes the lifting plate 3 to descend more significantly, it indicates that the fallen item is a washed sheet. The third electrode plate 18 then contacts the first electrode plate 12, and the first motor 10 reverses its operation, causing the first rotating roller 8 to reverse, which in turn forces the first conveyor belt 9 to move, thus conveying the fallen duvet cover in another direction. This allows for accurate sorting of sheets and duvet covers based on their quality, reducing sorting errors, preventing confusion during sorting, and greatly improving sorting efficiency.
[0023] A support column 19 is fixedly connected to the base 1, and an inclined guide hopper 20 is fixedly connected to the support column 19. A third motor 21 is installed on the side wall of the inclined guide hopper 20. The output end of the third motor 21 is connected to a third rotating rod 22. A rotating wheel 23 is fitted on the third rotating rod 22. A swing plate 24 is fixed on the outer surface of the rotating wheel 23. A first baffle 25 is fixed to one side of the top of the first support frame 6. When sorting, the third motor 21 is started, which causes the rotating wheel 23 to drive the swing plate 24 to rotate, thereby opening the opening of the inclined guide hopper 20 and allowing the items on the inclined guide hopper 20 to automatically fall onto the first conveyor belt 9, thereby achieving the purpose of automatic feeding and facilitating subsequent continuous sorting operations.
[0024] Please see Figure 1 and Figure 5As shown, support plates 26 are fixedly connected to both side walls of the base 1. Two second fixing plates 27 are fixedly connected to each support plate 26. A second support frame 28 is fixedly connected to the top of each of the two second fixing plates 27. Second rotating rods 29 are rotatably mounted at both ends of each second support frame 28. A second rotating roller 30 is fitted onto the outer surface of each second rotating rod 29. A second conveyor belt 31 is fitted onto the outer surface of each of the two second rotating rollers 30. A second motor 32 is mounted on one side wall of each of the two second support frames 28. The output end of the second motor 32 is connected to the second rotating rod 29. One end of each of the two second support frames 28 is connected to the other end. A second baffle 33 is fixed to one side of the top of each second baffle 33. A controller 34 is installed on one of the second baffles 33. The controller 34 is model S7-300. A rectangular plate 35 is fixed to each of the two second baffles 33. During the sorting process, the items conveyed by the first conveyor belt 9 will fall onto the second conveyor belt 31. The second motor 32 is started, which causes the second rotating roller 30 to drive the second conveyor belt 31 to rotate, so that the sorted sheets or duvet covers can continue to be conveyed, which is convenient for subsequent sorting and sorting.
[0025] Each rectangular plate 35 is equipped with an LED light 36 and an image scanner 37 on its bottom side. The two image scanners 37 are connected by a wire 38, and the LED light 36, the image scanner 37, and the controller 34 are electrically connected. When using the device, the image scanner 37 (model Fi-7240) captures high-definition images of the sheets and duvet covers, including details such as color, texture, and shape. Through high-precision image processing and recognition technology, the sheets and duvet covers can be accurately classified, avoiding classification errors. The LED light 36 provides illumination for the sheets and duvet covers, offering high-brightness light to ensure the clarity and detail of the images during the scanning process of the image scanner 37.
[0026] Working Principle: Existing bed sheet and duvet cover sorting equipment relies on simple scanning to accurately determine the quality of bed sheets and duvet covers, leading to a high error rate. These errors disrupt production and cause confusion, potentially requiring production line shutdowns or resource reallocation to correct them, significantly reducing overall efficiency. Therefore, this paper proposes a bed sheet and duvet cover sorting device. Because bed sheets are relatively lighter than duvet covers, they can be sorted based on their weight. First, the washed and folded bed sheets or duvet covers are placed on the inclined guide hopper 20. Then, the third motor 21 is started, causing the rotating wheel 23 to drive the swing plate 24 to rotate, thereby opening the opening of the inclined guide hopper 20 and allowing the items on the inclined guide hopper 20 to fall onto the first conveyor belt 9. The opening of the inclined guide hopper 20 is then resealed. After the items fall onto the first conveyor belt 9, the spring 4 is compressed, and the lifting plate 3 moves vertically downward. This causes the vertical plate 11 to drive the first electrode plate 12 and the second electrode plate 13 to move downward as well. After the first electrode plate 12 and the second electrode plate 13 have quickly completed their downward movement, the pneumatic cylinder 15 is activated, causing the pneumatic rod 16 to drive the mounting plate 1. 7. The third electrode plate 18 moves. When the third electrode plate 18 comes into contact with the second electrode plate 13, it indicates that the lifting plate 3 has not descended significantly, meaning that the falling item is a washed sheet. Simultaneously, the contact between the third electrode plate 18 and the second electrode plate 13 energizes the first motor 10, causing the first rotating roller 8 to rotate forward, forcing the first conveyor belt 9 to rotate as well, thus transporting the falling sheet. When the falling item causes the lifting plate 3 to descend more significantly, it indicates that the falling item is a washed sheet. The third electrode plate 18 will then come into contact with the first electrode plate 12, and the first motor 10 will... When machine 10 starts in reverse operation, the first rotating roller 8 reverses, forcing the first conveyor belt 9 to move accordingly. This allows the fallen duvet covers to be transported in another direction, enabling accurate sorting based on the quality of the sheets and duvet covers, reducing the sorting error rate, avoiding confusion during sorting, and greatly improving sorting efficiency. During the sorting process, items transported by the first conveyor belt 9 will fall onto the second conveyor belt 31. The second motor 32 is started, causing the second rotating roller 30 to drive the second conveyor belt 31 to rotate, thus continuing to transport the sorted sheets or duvet covers for subsequent classification and sorting.
[0027] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A bed sheet and duvet cover sorting device, characterized in that: Includes a base (1), on which four columns (2) are fixedly connected. A lifting plate (3) is fitted on each of the four columns (2). Four springs (4) are fixed between the lifting plate (3) and the base (1), and each spring (4) is fitted on a corresponding column (2). Two first fixing plates (5) are fixedly connected to the lifting plate (3). A first support frame (6) is fixedly connected to the two first fixing plates (5). A first rotating rod (7) is rotatably installed at both ends of the first support frame (6). A first rotating roller (8) is fitted on each of the two first rotating rods (7). A first conveyor belt (9) is fitted on the outer surface of the two first rotating rollers (8). A first motor (1) is installed on the side of the first support frame (6). 0), and the output end of the first motor (10) is connected to one end of the first rotating rod (7). A vertical plate (11) is fixed on the lifting plate (3). A first electrode plate (12) and a second electrode plate (13) are installed on the vertical plate (11) from top to bottom. A square plate (14) is fixed on the base (1). A pneumatic cylinder (15) is installed on the square plate (14). A pneumatic rod (16) is assembled on the working end of the pneumatic cylinder (15). A mounting plate (17) is fixed to the end of the pneumatic rod (16). A third electrode plate (18) is installed on the mounting plate (17). The first electrode plate (12) and the second electrode plate (13) are electrically connected to the third electrode plate (18).
2. The bed sheet and duvet cover sorting device according to claim 1, characterized in that: A support column (19) is fixedly connected to the base (1), and an inclined guide hopper (20) is fixedly connected to the support column (19). A third motor (21) is installed on the side wall of the inclined guide hopper (20). A third rotating rod (22) is connected to the output end of the third motor (21). A rotating wheel (23) is fitted on the third rotating rod (22). A swing plate (24) is fixed on the outer surface of the rotating wheel (23). A first baffle (25) is fixedly connected to one side of the top of the first support frame (6).
3. The bed sheet and duvet cover sorting device according to claim 1, characterized in that: Support plates (26) are fixed to both sides of the base (1), and two second fixing plates (27) are fixed to each support plate (26). The top of the two second fixing plates (27) are fixed to a second support frame (28).
4. A bed sheet and duvet cover sorting device according to claim 3, characterized in that: The second support frame (28) is rotatably mounted with a second rotating rod (29) at both ends. A second rotating roller (30) is fitted on the outer surface of each second rotating rod (29). A second conveyor belt (31) is fitted on the outer surface of the two second rotating rollers (30). A second motor (32) is installed on one side wall of each of the two second support frames (28). The output end of the second motor (32) is connected to one end of the second rotating rod (29).
5. A bed sheet and duvet cover sorting device according to claim 3, characterized in that: A second baffle (33) is fixed to one side of the top of each of the two second support frames (28). A controller (34) is installed on one of the second baffles (33), and a rectangular plate (35) is fixed to each of the two second baffles (33).
6. A bed sheet and duvet cover sorting device according to claim 5, characterized in that: Each rectangular plate (35) is equipped with an LED light (36) and an image scanner (37) on its bottom side. The two image scanners (37) are connected by a wire (38), and the LED light (36), the image scanner (37) and the controller (34) are electrically connected.
Citation Information
Patent Citations
Bed sheet and quilt cover sorting equipment
CN218394742U