Automatic unstacking and bag breaking device based on infrared induction
By using an infrared sensor-triggered bag-breaking device and a vibrating screening structure, the problems of high labor intensity and low efficiency in the process of unpacking bagged materials have been solved, realizing automated unpacking and screening, and improving unpacking efficiency and material quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN GUILIU ANIMAL HUSBANDRY CO LTD
- Filing Date
- 2025-07-02
- Publication Date
- 2026-07-24
AI Technical Summary
In existing technologies, the process of unpacking bagged materials is labor-intensive and inefficient, and mechanical unpacking devices cannot achieve accurate automatic positioning and screening, and large particles may enter the production process, affecting efficiency.
The device combines an infrared sensor with a bag-breaking knife. The bag-breaking knife is triggered by an infrared photoelectric switch to automatically cut bagged materials. It is also combined with a vibrating motor and screen holes for screening, thus achieving automatic destacking and bag breaking.
It achieves convenience and efficiency in the automated bag-opening process, reduces manual operation, ensures accurate positioning, prevents large particles from entering the production process, and improves work efficiency and material screening effect.
Smart Images

Figure CN224546598U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of unloading device technology, specifically to an automatic destacking and bag breaking device based on infrared sensing. Background Technology
[0002] Currently, there are various packaging methods for transporting materials, with bagged materials being one of them. When unpacking bagged materials after they have been transported to the designated location, the methods are mainly divided into manual unpacking and mechanical unpacking. The manual unpacking process involves first moving the bag, then cutting it open with a blade, and then unloading the material. This method is not only labor-intensive but also very inefficient.
[0003] After searching, it was found that the application with application number CN201620975485.0, entitled "Automatic Crushing and Bag-Breaking Unloading Device", proposed a mechanical automatic bag-breaking device that uses a drive cylinder to drive a disc cutter to break bags. However, in actual operation, the operator needs to operate the drive cylinder, which cannot achieve accurate automatic positioning and automatic bag breaking, and there are still some inconveniences in its use. At the same time, large particles cannot be screened, and uncrushed and clumped materials may still enter the production process, affecting work efficiency. Further improvements can be made.
[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] To address the shortcomings of existing technologies, this utility model provides an automatic depalletizing and bag-breaking device based on infrared sensing, which has the advantages of being easy to use and having high working efficiency, thereby solving the problems mentioned in the background technology.
[0007] (II) Technical Solution
[0008] To achieve the aforementioned advantages of ease of use and high work efficiency, the specific technical solution adopted by this utility model is as follows:
[0009] An automatic depalletizing and bag-breaking device based on infrared sensing includes a base and a rotating column. The rotating column is rotatably connected to the top surface of the base via a rotating connecting seat. A top frame is fixedly installed on the top surface of the rotating column, and a hook is fixedly installed on the bottom surface of the top frame. A stepper motor is fixedly installed on the top surface of the base, and a drive gear is installed at the output end of the stepper motor. A driven gear is fixedly installed on the surface of the rotating column, and the driven gear meshes with the drive gear. A lifting frame is installed on the bottom surface of the base on one side of the drive motor, and a discharge hopper is installed on the top surface of the base on the other side of the rotating column. A perforated plate is provided inside the discharge hopper. An electric cylinder is fixedly installed on the bottom surface of the perforated plate, and a bag-breaking knife is fixedly connected to the other end of the moving rod of the electric cylinder via a lifting seat. Uprights are fixedly mounted on both sides of the discharge hopper, and infrared photoelectric switches are fixedly installed on the inner surface of the uprights above the discharge hopper.
[0010] Furthermore, the output terminal of the infrared photoelectric switch is electrically connected to the input terminal of the electric cylinder, and the connection between the infrared photoelectric switches intersects perpendicularly with the central axis of the unloading hopper.
[0011] Furthermore, the hooks are arranged in multiple sets, and the hooks are distributed at equal angles along the vertical central axis of the rotating column.
[0012] Furthermore, a support plate is fixedly installed on the inner wall of the unloading hopper, and a guide rod is fixedly installed on the top surface of the support plate. The guide rod passes through the perforated plate and is slidably connected to the perforated plate. A spring is sleeved between the perforated plate and the support plate on the outside of the guide rod.
[0013] Furthermore, a vibration motor is fixedly installed on the bottom surface of the perforated plate, and the surface of the perforated plate is densely covered with sieve holes.
[0014] Furthermore, the stepping angle of the stepper motor matches the included angle of the hook distribution, and the hooks are arranged in pairs.
[0015] Furthermore, the vertical projection shape of the bag-breaking knife is cross-shaped, and the top of the bag-breaking knife is a pointed tip.
[0016] Furthermore, the unloading hopper is fixedly connected to the base via support legs.
[0017] (III) Beneficial Effects
[0018] Compared with the prior art, this utility model provides an automatic depalletizing and bag-breaking device based on infrared sensing, which has the following beneficial effects:
[0019] (1) This utility model adopts an infrared beam switch and a bag-breaking knife. When automatically unpacking and breaking bags, the staff can place the ton bag on the top surface of the lifting frame and lift the ton bag by the lifting frame. Then, the ton bag hanging rope is attached to the hook. Then, the stepper motor drives the drive gear to rotate, drives the driven gear to rotate, drives the rotating column to rotate, and drives the ton bag to rotate between the uprights. The infrared light emitted by the infrared beam switch is blocked by the ton bag, triggering the infrared beam switch, which can start the electric cylinder to extend and push the bag-breaking knife to move up and break the bottom surface of the ton bag, so that the material can flow out. This device uses an infrared beam switch for automatic triggering of bag breaking, which saves the trouble of manual operation, and the positioning is accurate and reliable, improving the convenience of use and work efficiency.
[0020] (2) This utility model adopts a vibrating motor and a perforated plate. The surface of the perforated plate is densely covered with screen holes. When breaking the bag, the vibrating motor drives the perforated plate to vibrate, which in turn drives the material falling into the top surface of the perforated plate to vibrate. The screen holes on the surface of the perforated plate vibrate and screen the material, preventing the material with too large a particle size from entering the production process, saving the trouble of screening later. At the same time, during the repeated vibration process, the clumped material is shaken apart and then passes through the screen holes, saving the trouble of breaking it apart later, further improving the convenience of use and work efficiency. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments 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.
[0022] Figure 1 This is a schematic diagram of the structure of an automatic depalletizing and bag-breaking device based on infrared sensing proposed in this utility model;
[0023] Figure 2 This is a front view of an automatic depalletizing and bag-breaking device based on infrared sensing proposed in this utility model;
[0024] Figure 3 This is an enlarged view of node A of an automatic depalletizing and bag-breaking device based on infrared sensing proposed in this utility model;
[0025] Figure 4 This is a schematic diagram of the installation of the bag-breaking knife proposed in this utility model.
[0026] In the picture:
[0027] 1. Base; 2. Lifting frame; 3. Rotating column; 4. Rotary connecting seat; 5. Stepper motor; 6. Drive gear; 7. Driven gear; 8. Unloading hopper; 9. Orifice plate; 10. Electric cylinder; 11. Bag breaking knife; 12. Vibration motor; 13. Upright frame; 14. Infrared photoelectric switch; 15. Top frame; 16. Hook; 17. Guide rod; 18. Support plate; 19. Spring; 20. Lifting seat. Detailed Implementation
[0028] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.
[0029] According to an embodiment of the present invention, an automatic depalletizing and bag-breaking device based on infrared sensing is provided.
[0030] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-4As shown, an automatic depalletizing and bag-breaking device based on infrared sensing according to an embodiment of this utility model includes a base 1 and a rotating column 3. The rotating column 3 is rotatably connected to the top surface of the base 1 via a rotating connecting seat 4, and a top frame 15 is fixedly installed on the top surface of the rotating column 3. A hook 16 is fixedly installed on the bottom surface of the top frame 15. A stepper motor 5 is fixedly installed on the top surface of the base 1, and a drive gear 6 is installed at the output end of the stepper motor 5. A driven gear 7 is fixedly installed on the surface of the rotating column 3, and the driven gear 7 meshes with the drive gear 6, which is a common drive structure. A lifting frame 2 is installed on the bottom surface of the base 1 on one side of the drive motor, which is a common lifting structure, facilitating the placement of ton bags. A discharge hopper 8 is installed on the top surface of the base 1 on the other side of the rotating column 3, and a perforated plate 9 is provided inside the discharge hopper 8. An electric cylinder 10 is fixedly installed on the bottom surface of the perforated plate 9, and the other end of the moving rod of the electric cylinder 10 is fixed via a lifting seat 20. The device is equipped with a bag-breaking knife 11 and uprights 13 fixed on both sides of the unloading hopper 8. An infrared photoelectric switch 14 is fixedly installed on the inner surface of the uprights 13 above the unloading hopper 8. When automatically unpacking and breaking bags, the operator can place the ton bag on the top surface of the lifting frame 2 and lift the ton bag through the lifting frame 2. Then, the ton bag hanging rope is attached to the hook 16. Subsequently, the stepper motor 5 drives the drive gear 6 to rotate, which drives the driven gear 7 to rotate, which drives the rotating column 3 to rotate, causing the ton bag to rotate between the uprights 13. The infrared light emitted by the infrared photoelectric switch 14 is blocked by the ton bag, triggering the infrared photoelectric switch 14. This activates the electric cylinder 10 to extend, pushing the bag-breaking knife 11 to move upward and break the bottom surface of the ton bag, allowing the material to flow out. This device uses the infrared photoelectric switch 14 for automatic triggering of bag breaking, eliminating the trouble of manual operation, providing accurate and reliable positioning, and improving the convenience and efficiency of use.
[0031] In one embodiment, the output terminal of the infrared photoelectric switch 14 is electrically connected to the input terminal of the electric cylinder 10, and the connection between the infrared photoelectric switches 14 intersects perpendicularly with the central axis of the unloading hopper 8, which facilitates the detection of ton bags.
[0032] In one embodiment, multiple sets of hooks 16 are arranged, and the hooks 16 are distributed at equal angles along the vertical central axis of the rotating column 3. The stepping angle of the stepper motor 5 matches the angle between the distribution of the hooks 16, and the hooks 16 are arranged in pairs, which facilitates the simultaneous installation and removal of ton bags when breaking the bags.
[0033] In one embodiment, a support plate 18 is fixedly installed on the inner wall of the unloading hopper 8, and a guide rod 17 is fixedly installed on the top surface of the support plate 18. The guide rod 17 passes through the perforated plate 9 and is slidably connected to the perforated plate 9. A spring 19 is sleeved between the perforated plate 9 and the support plate 18 on the outside of the guide rod 17. The spring 19 provides support elasticity to facilitate the vibration of the perforated plate 9, and the guide rod 17 guides the vibration of the perforated plate 9.
[0034] In one embodiment, a vibration motor 12 is fixedly installed on the bottom surface of the perforated plate 9, and the surface of the perforated plate 9 is densely covered with sieve holes. When breaking the bag, the vibration motor 12 drives the perforated plate 9 to vibrate, which in turn drives the material falling into the top surface of the perforated plate 9 to vibrate. The sieve holes on the surface of the perforated plate 9 vibrate and screen the material, preventing materials with excessively large particle sizes from entering the production process, thus saving the trouble of later screening. At the same time, during the repeated vibration process, the clumped material is shaken apart and then passes through the sieve holes, saving the trouble of later dispersing, further improving the convenience of use and work efficiency.
[0035] In one embodiment, the vertical projection shape of the bag-breaking knife 11 is cross-shaped, and the top of the bag-breaking knife 11 is a pointed tip, which facilitates bag breaking.
[0036] In one embodiment, the unloading hopper 8 is fixedly connected to the base 1 by support legs, which facilitates the discharge of material from the unloading hopper 8.
[0037] Working principle:
[0038] During automatic destacking and bag breaking, workers can place the ton bag on top of the lifting frame 2, which then lifts the ton bag. The ton bag's hanging rope is then attached to the hook 16. Subsequently, the stepper motor 5 drives the drive gear 6 to rotate, which in turn drives the driven gear 7, causing the rotating column 3 to rotate. This rotates the ton bag to the upright frame 13, where the infrared beam emitted by the infrared photoelectric switch 14 is blocked by the ton bag. Triggering the infrared photoelectric switch 14, the electric cylinder 10 extends, pushing the bag-breaking knife 11 upwards to break through the bottom of the ton bag, allowing the material to flow out. This device uses the infrared photoelectric switch 14 for automatic triggering of bag breaking. It eliminates the hassle of manual operation, provides accurate and reliable positioning, and improves the convenience and efficiency of use. At the same time, the surface of the perforated plate 9 is densely covered with sieve holes. When breaking the bag, the vibrating motor 12 drives the perforated plate 9 to vibrate, which in turn causes the material falling into the top surface of the perforated plate 9 to vibrate and screen the material. This prevents materials with excessively large particle sizes from entering the production process, eliminating the trouble of later screening. In addition, during the repeated vibration process, the clumped material is shaken apart and passes through the sieve holes, eliminating the trouble of later dispersing, further improving the convenience and efficiency of use.
[0039] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 automatic depalletizing and bag-breaking device based on infrared sensing, characterized in that, The system includes a base (1) and a rotating column (3). The top surface of the base (1) is rotatably connected to the rotating column (3) via a rotating connecting seat (4). A top frame (15) is fixedly installed on the top surface of the rotating column (3), and a hook (16) is fixedly installed on the bottom surface of the top frame (15). A stepper motor (5) is fixedly installed on the top surface of the base (1), and a drive gear (6) is installed at the output end of the stepper motor (5). A driven gear (7) is fixedly installed on the surface of the rotating column (3), and the driven gear (7) meshes with the drive gear (6). The bottom surface of the base (1) A lifting frame (2) is installed on one side of the drive motor, and a discharge hopper (8) is installed on the top surface of the base (1) on the other side of the rotating column (3). A perforated plate (9) is provided inside the discharge hopper (8). An electric cylinder (10) is fixedly installed on the bottom surface of the perforated plate (9). The other end of the moving rod of the electric cylinder (10) is fixedly connected to a bag-breaking knife (11) through a lifting seat (20). A stand (13) is fixedly mounted on both sides of the discharge hopper (8), and an infrared beam switch (14) is fixedly installed on the inner surface of the stand (13) above the discharge hopper (8).
2. The automatic depalletizing and bag-breaking device based on infrared sensing according to claim 1, characterized in that, The output terminal of the infrared photoelectric switch (14) is electrically connected to the input terminal of the electric cylinder (10), and the line connecting the infrared photoelectric switches (14) intersects perpendicularly with the central axis of the unloading hopper (8).
3. The automatic depalletizing and bag-breaking device based on infrared sensing according to claim 1, characterized in that, The hooks (16) are arranged in multiple sets, and the hooks (16) are distributed at equal angles along the vertical central axis of the rotating column (3).
4. The automatic depalletizing and bag-breaking device based on infrared sensing according to claim 1, characterized in that, A support plate (18) is fixedly installed on the inner wall of the unloading hopper (8), and a guide rod (17) is fixedly installed on the top surface of the support plate (18). The guide rod (17) passes through the perforated plate (9) and is slidably connected to the perforated plate (9). A spring (19) is sleeved between the perforated plate (9) and the support plate (18) on the outside of the guide rod (17).
5. The automatic depalletizing and bag-breaking device based on infrared sensing according to claim 1, characterized in that, A vibration motor (12) is fixedly installed on the bottom surface of the perforated plate (9), and the surface of the perforated plate (9) is densely covered with sieve holes.
6. The automatic depalletizing and bag-breaking device based on infrared sensing according to claim 1, characterized in that, The stepping angle of the stepper motor (5) matches the angle between the distribution of the hooks (16), and the hooks (16) are in pairs.
7. The automatic depalletizing and bag-breaking device based on infrared sensing according to claim 1, characterized in that, The vertical projection shape of the bag-breaking knife (11) is cross-shaped, and the top of the bag-breaking knife (11) is a pointed tip.
8. The automatic depalletizing and bag-breaking device based on infrared sensing according to claim 1, characterized in that, The unloading hopper (8) is fixedly connected to the base (1) by support legs.