Automatic bread packaging device

Abstract

The utility model discloses an automatic bread packaging device which comprises a bag opening module and a bag opening module, the bag opening module comprises a bag taking assembly and a bag opening assembly, the bag taking assembly is used for taking and conveying packaging bags, the bag taking assembly distributes the packaging bags to the bag opening assembly, and the bag opening assembly extends into the packaging bags and opens the packaging bags; the bagging module comprises a feeding conveying belt and a pushing assembly arranged above the feeding conveying belt, bread to be bagged is arranged on the feeding conveying belt, the opened packaging bags are conveyed to the feeding conveying belt through the bag taking assembly, the pushing assembly pushes the bread into the packaging bags, and the packaging bags containing the bread are conveyed to the sorting module through the feeding conveying belt. And the packaging bags are conveyed to the next process by the arrangement module. The whole bread packaging machine is simple in structure and easy to maintain and replace, the problem that workers continuously repeat mechanical labor is solved, the manual labor of the workers is relieved, the work efficiency of bread packaging is improved, and losses caused by improper manual operation are reduced.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment, and in particular to an automatic bread packaging device. Background Technology

[0002] Traditional bread packaging is inefficient and difficult to integrate with modern production lines, especially for food packaging lines where hygiene is a significant concern. Existing equipment is also complex in structure, expensive, and difficult to repair and maintain when problems arise. Utility Model Content

[0003] The purpose of this invention is to solve the technical problems of existing bread packaging equipment, which is characterized by low efficiency, complex mechanical structure, high cost, and difficulty in maintenance and repair after problems occur. This invention provides an automatic bread packaging device with a simple structure, easy maintenance and replacement, eliminating the need for repetitive mechanical labor by workers, reducing physical workload, improving bread packaging efficiency, and minimizing losses caused by improper manual operation.

[0004] To solve the above-mentioned technical problems, this utility model discloses an automatic bread packaging device, comprising:

[0005] The bag opening module includes a bag picking component and a bag opening component. The bag picking component is used to pick up and deliver the packaging bag. The bag picking component delivers the packaging bag to the bag opening component, and the bag opening component extends into the packaging bag and opens the packaging bag.

[0006] The bagging module includes a feeding conveyor belt and a pushing component located above the feeding conveyor belt. Bread to be bagged is placed on the feeding conveyor belt. After the packaging bag is opened, it is sent to the feeding conveyor belt by the bag taking component. The pushing component pushes the bread into the packaging bag. The packaging bag containing bread is transported to the sorting module by the feeding conveyor belt, and the sorting module transports the packaging bag to the next process.

[0007] By adopting the above technical solution, the entire equipment has a simple structure, is easy to maintain and replace, solves the problem of workers constantly performing repetitive mechanical labor, reduces the physical labor of workers, improves the efficiency of bread packaging, and reduces losses caused by improper manual operation.

[0008] According to another specific embodiment of the present invention, the bag opening component disclosed in this embodiment includes:

[0009] The fixed plate is connected to the bag-retrieving assembly via a telescopic rod. Multiple support claws are hinged on the fixed plate at equal intervals along its circumference. A through hole is provided at the center of the fixed plate.

[0010] The telescopic support claw part includes a telescopic rod fixing shaft, which passes through and extends out of the through hole. Multiple telescopic support claw rods corresponding to the number of support claws are provided on the telescopic rod fixing shaft, and the multiple telescopic support claw rods are respectively connected to the multiple support claws.

[0011] According to another specific embodiment of the present invention, the telescopic rod and the fixed shaft of the telescopic rod are both hollow and interconnected. A hydraulic component is provided inside the telescopic rod. The hydraulic component is connected to the telescopic rod of the support claw through the fixed shaft of the telescopic rod and is used to drive the telescopic rod of the support claw to extend and retract so as to drive the support claw to open and close.

[0012] According to another specific embodiment of the present invention, the telescopic rod fixing shaft is fixed to the fixing plate by a large nut, and the support claw telescopic rod is fixed to the telescopic rod fixing shaft by a small nut.

[0013] According to another specific embodiment of the present invention, the present invention discloses that the support claw is long and narrow, and along the extension direction of the support claw, the support claw is bent inward and closes together, and a soft head is detachably installed at the end of the support claw.

[0014] According to another specific embodiment of the present invention, the embodiment of the present invention discloses a bag-retrieving component comprising:

[0015] The track has a groove inside, and a slide rail rack is installed in the groove. The outer surface of the track has a guide groove, and the extension direction of the guide groove is parallel to the extension direction of the groove.

[0016] The drive assembly includes a slide rail gear and a drive motor. The slide rail gear is disposed in a groove and meshes with the slide rail rack. The drive motor is driven by the slide rail gear and is used to drive the slide rail gear to rotate so as to move along the slide rail gear.

[0017] The mobile suction cup clamp is connected to the drive motor via a mobile suction cup telescopic rod and is driven by the drive motor to move back and forth between the first position and the second position. The bottom of the mobile suction cup clamp is provided with a first suction cup, which is used to pick up and deliver packaging bags.

[0018] The fixed suction cup clamp is fixedly installed on the track. The fixed suction cup clamp is equipped with a second suction cup. When the movable suction cup clamp is in the first position, the fixed suction cup clamp is located below the movable suction cup clamp.

[0019] According to another specific embodiment of the present invention, the embodiment of the present invention also includes a packaging bag storage box for storing packaging bags, which is set below the track. When the movable suction cup clamp moves to the second position, the movable suction cup clamp is located above the packaging bag storage box. The movable suction cup telescopic rod drives the movable suction cup clamp to approach the packaging bag storage box, and the packaging bag is sucked up by the first suction cup.

[0020] According to another specific embodiment of the present invention, a support is provided on one side of the feeding conveyor belt, and a pushing assembly is disposed on the support. The pushing assembly includes:

[0021] The push plate is positioned above and close to the feeding conveyor belt, and is hinged to the bracket.

[0022] A drive rod, which includes a drive rod connected to a push plate, is used to push the push plate to push bread from the feeding conveyor belt into the packaging bag.

[0023] According to another specific embodiment of the present invention, the sorting module disclosed in this embodiment includes:

[0024] The feeding conveyor belt delivers the bread-filled bags to the discharging conveyor belt;

[0025] The packaging bag auxiliary standing device is installed on the discharge conveyor belt near the feeding conveyor belt. When the discharge conveyor belt can transport the packaging bag to the packaging bag auxiliary standing device, the packaging bag auxiliary standing device will lift the packaging bag into an upright position and then be transported to the next process by the discharge conveyor belt.

[0026] According to another specific embodiment of the present invention, the present invention discloses that the discharge conveyor belt is a roller conveyor belt, which includes a support frame, and multiple synchronously rotating self-rotating rollers are equally spaced at the center of the support frame, and the self-rotating rollers drive the packaging bag to move.

[0027] The packaging bag auxiliary standing device is set on the support frame. The rollers of the discharge conveyor belt near the feeding conveyor belt are grooved rollers. When the packaging bag auxiliary standing device is in the initial position, it is located in the groove of the grooved roller so that the upper surface of the packaging bag auxiliary standing device is flush with the transport surface of the discharge conveyor belt.

[0028] The beneficial effects of this application are: the entire equipment has a simple structure, is easy to maintain and replace, solves the problem of workers constantly performing repetitive mechanical labor, reduces the physical labor of workers, improves the efficiency of bread packaging, and reduces losses caused by improper manual operation. Attached Figure Description

[0029] Figure 1 This diagram shows the overall assembly of the automatic bread packaging device according to an embodiment of the present invention.

[0030] Figure 2 This diagram shows the structure of the bag-opening component of the automatic bread packaging device according to an embodiment of the present invention.

[0031] Figure 3This diagram shows the structure of the sorting module of the automatic bread packaging device according to an embodiment of the present invention. Detailed Implementation

[0032] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model will be presented in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to this embodiment. On the contrary, the purpose of describing the utility model in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. To provide a deep understanding of this utility model, many specific details will be included in the following description. This utility model may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0033] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0034] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0035] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0036] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" 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 embodiment based on the specific circumstances.

[0037] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0038] Reference Figure 1 This application provides an automatic bread packaging device, including: a bag opening module and a bag filling module. The bag opening module includes a bag picking component 1 and a bag opening component 2. The bag picking component 1 is used to pick up and deliver the packaging bag. The bag picking component 1 delivers the packaging bag to the bag opening component 2. The bag opening component 2 extends into the packaging bag and opens the packaging bag.

[0039] The bagging module includes a feeding conveyor belt 3 and a pushing component 4 disposed above the feeding conveyor belt 3. Bread to be bagged is placed on the feeding conveyor belt 3. After the packaging bag is opened, it is sent to the feeding conveyor belt 3 by the bag taking component 1. The pushing component 4 pushes the bread into the packaging bag. The packaging bag containing bread is transported to the sorting module 5 by the feeding conveyor belt 3, and the sorting module 5 transports the packaging bag to the next process.

[0040] In this embodiment, the bag picking component 1 is a key component at the beginning of the entire packaging process. Its purpose is to accurately and efficiently pick up and deliver packaging bags. The bag picking component 1 includes a gripping mechanism and a moving transmission part.

[0041] The gripping mechanism is equipped with flexible suction cups that can closely adhere to the surface of packaging bags of different textures, ensuring a firm grip. The layout of the suction cups is rationally planned according to the common sizes and shapes of packaging bags, achieving balanced force and preventing localized deformation or slippage of the packaging bags during the gripping process.

[0042] The mobile transmission unit moves quickly and smoothly along the preset trajectory, ensuring that the gripping mechanism does not deviate from the predetermined path during bag picking and delivery, so that the bag picking component 1 can reliably and accurately deliver the packaging bag from the storage location to the location of the bag opening component 2.

[0043] The bag opening component 2 is responsible for opening the delivered packaging bag. Its material possesses a certain strength and toughness, capable of forcefully opening the bag without easily damaging it. During operation, the bag opening component 2 precisely inserts into the packaging bag and then slowly unfolds according to a preset angle and force, fully opening the bag. The bag opening component 2 also ensures that its insertion position and angle into the packaging bag are accurate each time, guaranteeing the consistency and stability of the opening action, allowing the packaging bag to await packaging in good condition.

[0044] The feeding conveyor belt 3 is the key channel for bread transportation. The conveyor belt itself is made of wear-resistant material with moderate friction, and the surface texture is specially treated to help the bread be placed stably and prevent slippage or rolling during transportation.

[0045] Its drive system consists of a powerful and stable motor paired with a reducer. Through a reasonable transmission device, the conveyor belt maintains a stable running speed, ensuring that the bread is delivered to the sorting module 5 at a uniform speed. At the same time, baffles of appropriate height are set on both sides of the conveyor belt, which can not only prevent the bread from falling accidentally, but also help to keep the bread in a relatively neat arrangement, providing convenience for the operation of the subsequent pushing component 4.

[0046] The pushing component 4 is located above the feeding conveyor belt 3, which enables the bread to be accurately put into the packaging bag. The pushing component 4 is used to make the bread accurately and orderly put into the packaging bag, making the whole bagging process efficient and standardized.

[0047] Once the bread-filled bags arrive at the sorting module 5 via the feeding conveyor belt 3, the sorting module 5 will perform final sorting and transport them to the next process, ensuring that the entire packaging process proceeds smoothly and continuously, laying the foundation for the high-quality completion of product packaging.

[0048] By providing a simplified bread packaging device, the entire equipment has a simple structure, is easy to maintain and replace, solves the problem of workers constantly performing repetitive mechanical labor, reduces the physical labor of workers, improves the efficiency of bread packaging, and reduces losses caused by improper manual operation.

[0049] Reference Figure 1 and Figure 2 In one feasible embodiment, the bag opening assembly 2 includes a fixed plate 21, which is connected to the bag taking assembly 1 via a telescopic rod 22. A plurality of support claws 23 are hinged on the fixed plate 21 and are spaced at equal intervals along the circumference of the fixed plate 21. A through hole is provided at the center of the fixed plate 21.

[0050] The telescopic part of the support claw 23 includes a telescopic rod fixing shaft 24, which passes through and extends out of the through hole. Multiple support claw telescopic rods 25 corresponding to the number of support claws 23 are provided on the telescopic rod fixing shaft 24, and the multiple support claw telescopic rods 25 are respectively connected to the multiple support claws 23.

[0051] Both the telescopic rod 22 and the telescopic rod fixed shaft 24 are hollow and interconnected. A hydraulic component is installed inside the telescopic rod 22. The hydraulic component is connected to the support claw telescopic rod 25 through the telescopic rod fixed shaft 24 and is used to drive the support claw telescopic rod 25 to extend and retract, thereby driving the support claw 23 to open and close.

[0052] In this embodiment, the fixing plate 21 has a circular structure and can be made of high-strength aluminum alloy, which can effectively reduce the load on the telescopic rod 22. Its surface is anodized, which improves its wear resistance and corrosion resistance.

[0053] The fixed plate 21 is connected to the bag-picking assembly 1 via a telescopic rod 22. The telescopic rod 22 is electrically operated and possesses high-precision stroke control capabilities, allowing for precise adjustment of the fixed plate 21's height according to the bag's height and opening position requirements. The drive motor 152 of the telescopic rod 22 is a servo motor, enabling precise speed and position control to ensure smooth lifting and lowering of the fixed plate 21. The high-precision stroke control of the electric telescopic rod 22, connected to the bag-picking assembly 1, allows for accurate adjustment of the fixed plate 21's height based on different bag sizes and opening position requirements, improving the adaptability and accuracy of bag opening. The servo motor-driven telescopic rod 22 precisely controls speed and position, ensuring smooth lifting and lowering of the fixed plate 21 and preventing damage to the bag or opening failure due to shaking.

[0054] Multiple hinge seats are evenly distributed on the fixed plate 21, and the support claw 23 is hinged to the hinge seats via a pin. The hinged connection between the support claw 23 and the fixed plate 21 allows the support claw 23 to rotate flexibly around the pin, achieving the opening and closing actions. To ensure smooth rotation of the support claw 23, the pin surface is polished and coated with grease. The flexible rotation design of the support claw 23, connected to the hinge seats on the fixed plate 21 via the pin, allows the support claw 23 to adjust the opening angle according to the actual situation of the packaging bag. The polished and grease-coated pin surface reduces rotational resistance, improves the smoothness of the support claw 23's movement, and ensures efficient and stable bag opening.

[0055] The diameter of the through hole at the center of the fixed plate 21 is set according to the size of the telescopic rod fixing shaft 24, and the two are fitted with a clearance fit to ensure that the telescopic rod fixing shaft 24 can slide freely within the through hole. At the same time, the edges of the through hole are chamfered to prevent scratching during the sliding of the telescopic rod fixing shaft 24. The clearance fit between the through hole at the center of the fixed plate 21 and the telescopic rod fixing shaft 24 ensures the free sliding of the telescopic rod fixing shaft 24 and avoids jamming that could affect the bag opening operation. The chamfered edges of the through hole prevent scratching the telescopic rod fixing shaft 24, extend its service life, and ensure the reliability of the equipment.

[0056] The support claw 23 is made of stainless steel, offering excellent strength and corrosion resistance. Its curved shape allows it to better conform to the inner wall of the packaging bag, preventing damage during opening. The surface of the support claw 23 is polished to reduce friction with the packaging bag. The rotation angle range of the support claw 23 is adjustable, and its maximum opening angle can meet the opening requirements of packaging bags of different sizes. In the retracted state, the support claw 23 fits tightly around the fixing plate 21, facilitating insertion into the packaging bag; in the open state, the support claw 23 can fully open the packaging bag, providing ample space for material filling.

[0057] Telescopic rod fixing shaft 24: The telescopic rod fixing shaft 24 is made of high-strength alloy steel, which has good rigidity and bending resistance. Its surface is chrome-plated to improve wear resistance and corrosion resistance. One end of the telescopic rod fixing shaft 24 is connected to the drive device, and the other end passes through the through hole of the fixing plate 21 and is connected to the support claw telescopic rod 25.

[0058] The telescopic rod 22 and its fixed shaft 24 are made of high-strength alloy steel in a hollow tubular structure. Precision machining and surface treatment ensure a smooth inner wall, reducing frictional resistance during hydraulic assembly operation. The hollow design of the telescopic rod 22 not only reduces its own weight and the load on the bag-retrieving assembly 1, but also provides installation space for the hydraulic assembly. The outer diameter and wall thickness of the telescopic rod 22 are precisely calculated and designed based on the required load-bearing capacity and hydraulic system pressure to ensure it does not deform or break during operation.

[0059] The hollow design of the telescopic rod 22 significantly reduces its own weight, thereby reducing the load on the connected bag-picking assembly 1. This makes the bag-picking assembly 1 more flexible and efficient during operation, reduces energy consumption, and extends the service life of related drive components. At the same time, reducing the load also helps improve the accuracy of the entire bag-opening assembly 2 during movement and positioning, allowing the support claw 23 to extend more accurately into the packaging bag.

[0060] The hollow design of the telescopic rod 22 provides dedicated installation space for the hydraulic components, avoiding the space occupation and interference problems that might arise from externally mounted hydraulic components. This compact layout makes the overall structure of the bag opening component 2 more rational, reduces the equipment's footprint, and is beneficial for the overall planning and layout of the packaging production line.

[0061] Hydraulic Components: The hydraulic components mainly consist of a hydraulic pump, hydraulic hoses, hydraulic valves, and a hydraulic cylinder. The hydraulic pump is a high-performance gear pump, capable of providing a stable and high-pressure hydraulic oil flow. The hydraulic hoses are made of high-pressure resistant and corrosion-resistant rubber tubing to ensure safe and reliable hydraulic oil transmission. The hydraulic valves include a directional valve, a relief valve, and a throttle valve. The directional valve controls the flow direction of the hydraulic oil, enabling the extension and retraction of the claw telescopic rod 25; the relief valve limits the maximum pressure of the hydraulic system to prevent system overload; and the throttle valve regulates the flow rate of the hydraulic oil, thereby controlling the extension and retraction speed of the claw telescopic rod 25. The hydraulic cylinder is installed inside the telescopic rod 22, and its piston rod is connected to the claw telescopic rod 25, driving the extension and retraction of the claw telescopic rod 25 through changes in hydraulic oil pressure.

[0062] The hydraulic components provide a powerful and stable driving force, ensuring that the telescopic claw 25 has sufficient force to open packaging bags of various materials and sizes during extension and retraction. Whether it is a rigid plastic packaging bag or a relatively flexible paper packaging bag, the hydraulic system can easily handle it, ensuring a smooth bag opening operation.

[0063] By precisely controlling the flow direction, flow rate, and pressure of hydraulic oil through hydraulic valves, the extension speed and stroke of the extender claw 25 can be accurately adjusted. This allows the bag opening assembly 2 to flexibly adjust the opening angle and force of the extender claw 23 according to the requirements of different packaging bags, improving the accuracy and success rate of bag opening and reducing the probability of packaging bag damage.

[0064] The hydraulic system has excellent cushioning performance. At the moment the support claw 23 contacts and opens the packaging bag, it effectively absorbs and buffers the impact force, preventing excessive compression or damage to the packaging bag. At the same time, it also reduces the vibration and noise of the equipment itself, improving the stability of the equipment and the comfort of the working environment.

[0065] The specific workflow of the bag opening component 2 is as follows:

[0066] After the fixed plate 21, carrying the support claw 23, extends into the packaging bag, the hydraulic pump starts, delivering hydraulic oil through the hydraulic oil pipe to the rodless chamber of the hydraulic cylinder. This causes the piston rod to extend, driving the extension rod 25 of the support claw to lengthen, thereby pushing the support claw 23 outward and gradually opening the packaging bag. During the opening process of the support claw 23, the position and angle of the support claw 23 are controlled according to the settings. When the support claw 23 reaches the preset opening angle, the piston rod stops extending, completing the bag opening action.

[0067] After the bag is opened, the reversing valve switches the hydraulic oil flow direction, delivering the hydraulic oil to the rod chamber of the hydraulic cylinder, causing the piston rod to retract, which in turn drives the extension rod 25 of the support claw to retract, thereby pulling the support claw 23 inward. The extension rod 22 pulls the fixed plate 21 out of the packaging bag, preparing for the next bag opening operation. The bag taking component 1 moves the opened packaging bag to the feeding conveyor belt 3 of the bag filling module, and the pushing component 4 pushes the material (such as bread) into the packaging bag.

[0068] In one feasible embodiment, the telescopic lever 25 can also be an electric push rod, which has the advantages of compact structure, large thrust, and precise stroke control. Each telescopic lever 25 is connected to a corresponding claw 23 and is individually controlled by an independent control circuit. The stroke of the telescopic lever 25 is precisely designed according to the rotation angle of the claw 23 and the size of the packaging bag to ensure that the claw 23 can be accurately pushed to open and close.

[0069] The drive device for the telescopic part of the support claw 23 adopts a stepper motor, which converts the rotational motion of the motor into the linear motion of the telescopic rod fixed shaft 24 through a lead screw transmission mechanism. The stepper motor has high-precision position control capability, and can accurately control the movement distance of the telescopic rod fixed shaft 24 according to the instructions of the control system, thereby realizing the precise opening and closing of the support claw 23.

[0070] The specific workflow of the bag opening component 2 is as follows:

[0071] After the fixed plate 21, carrying the support claw 23, extends into the packaging bag, the upward movement of the telescopic rod fixed shaft 24 causes the support claw telescopic rod 25 to extend, pushing the support claw 23 to rotate outward around the pin axis, gradually opening the packaging bag. During the opening process of the support claw 23, the position and angle of the support claw 23 are controlled according to the settings. When the support claw 23 reaches the preset opening angle, the rotation stops, completing the bag opening action.

[0072] After the bag is opened, the telescopic rod fixed shaft 24 moves downward, causing the support claw telescopic rod 25 to retract, pulling the support claw 23 to rotate inward around the pin axis, gradually retracting to the initial position. The electric telescopic rod 22 rises, pulling the fixed plate 21 out of the packaging bag, ready for the next bag opening operation. The bag taking component 1 moves the opened packaging bag to the feeding conveyor belt 3 of the bag filling module, and the pushing component 4 pushes the material (such as bread) into the packaging bag.

[0073] In one feasible embodiment, the telescopic rod fixing shaft 24 is fixed to the fixing plate 21 by a large nut 26, and the support claw telescopic rod 25 is fixed to the telescopic rod fixing shaft 24 by a small nut 27. The support claw 23 is elongated and curved inward along its extension direction, and a flexible head 28 is detachably installed at the end of the support claw 23.

[0074] In this embodiment, the outer diameter of the telescopic rod fixing shaft 24 matches the inner diameter of the central through hole of the fixing plate 21, using a clearance fit to ensure that the telescopic rod fixing shaft 24 can slide freely within the through hole. One end of the shaft is threaded for installing the large nut 26, and the other end is connected to the support claw telescopic rod 25. During installation, the telescopic rod fixing shaft 24 is passed through the through hole of the fixing plate 21, and then the large nut 26 is tightened to ensure that the telescopic rod fixing shaft 24 will not loosen during operation, thus firmly fixing the telescopic rod fixing shaft 24 to the fixing plate 21.

[0075] One end of the claw telescopic rod 25 is connected to the piston rod of the hydraulic cylinder, and the other end is threaded and fixed to the telescopic rod fixing shaft 24 by a small nut 27. The tightening method of the small nut 27 is similar to that of the large nut 26. The fixing of the small nut 27 ensures a reliable connection between the claw telescopic rod 25 and the telescopic rod fixing shaft 24, and guarantees the accuracy and stability of the claw 23's movement.

[0076] The support claw 23 is elongated and made of stainless steel, offering excellent strength and corrosion resistance. Along its extension direction, the support claw 23 is curved inwards, a design that allows it to better conform to the inner wall of the packaging bag when inserted, reducing damage and improving efficiency in opening the bag. The bending angle and radius of curvature of the support claw 23 are optimized for the sizes and shapes of common packaging bags to accommodate various specifications.

[0077] Because the support claw 23 can better fit the inner wall of the packaging bag, the bag opening can be opened faster during the opening process, reducing the time and force required to open the bag. This not only improves the working efficiency of the bag opening component 2, but also reduces the energy consumption of the equipment and improves the production efficiency of the entire packaging production line.

[0078] The end of the support claw 23 is detachably fitted with a flexible tip 28, which is made of soft materials such as rubber or silicone. The function of the flexible tip 28 is to cushion and protect the packaging bag when the support claw 23 comes into contact with it, preventing the support claw 23 from scratching or damaging the packaging bag. The flexible tip 28 is installed using a threaded connection or a snap-fit ​​connection, making it easy to disassemble and replace. When the flexible tip 28 becomes worn or damaged, it can be replaced promptly to ensure effective bag opening.

[0079] The soft tip 28 at the end of the support claw 23 is made of a soft material, which provides good cushioning and protection when in contact with the packaging bag, preventing the hard support claw 23 from directly scratching or damaging the packaging bag. This is especially important for packaging bags that are thin or have a fragile surface, effectively improving packaging quality and reducing the defect rate.

[0080] The detachable design of the flexible tip 28 allows for easy replacement when it becomes worn or damaged, without needing to replace the entire support claw 23. This not only reduces maintenance costs but also minimizes equipment downtime and improves equipment efficiency. Furthermore, flexible tips 28 of different materials and shapes can be selected and replaced according to the characteristics of different packaging bags, further enhancing the adaptability and versatility of the bag opening assembly 2.

[0081] In one feasible embodiment, the bag-retrieving assembly 1 includes:

[0082] The track 14 has a groove 12 inside, and a slide rail rack 13 is provided in the groove 12. The outer surface of the track 14 has a guide groove 11, and the extension direction of the guide groove 11 is parallel to the extension direction of the groove 12.

[0083] The drive assembly 15 includes a slide rail gear 151 and a drive motor 152. The slide rail gear 151 is disposed in the groove 12 and meshes with the slide rail rack 13. The drive motor 152 is driven by the slide rail gear 151 and is used to drive the slide rail gear 151 to rotate so as to move along the slide rail gear 151.

[0084] The mobile suction cup clamp 16 is connected to the drive motor 152 via the mobile suction cup telescopic rod 153 and is driven by the drive motor 152 to move back and forth between the first position and the second position. The bottom of the mobile suction cup clamp 16 is provided with a first suction cup, which is used to pick up and deliver packaging bags.

[0085] The fixed suction cup clamp 17 is fixedly installed on the track 14. The fixed suction cup clamp 17 is provided with a second suction cup. When the movable suction cup clamp 16 is in the first position, the fixed suction cup clamp 17 is located below the movable suction cup clamp 16.

[0086] In this embodiment, the track 14 is made of high-strength aluminum alloy, which has the advantages of light weight, high strength and good corrosion resistance. It can maintain structural stability during long-term use, while reducing the weight of the entire bag-taking assembly 1, which is conducive to the flexible operation of the equipment. The track 14 is long and narrow, and a groove 12 is provided inside. The shape and size of the groove 12 are adapted to the slide rail rack 13.

[0087] The groove 12 extends along the length of the track 14, and its inner wall is finely machined to have a smooth and flat surface, ensuring that the slide rail rack 13 can fit tightly and be smoothly installed within it. The slide rail rack 13 is made of high-quality alloy steel and is manufactured using a precision mold forming process. It has clear tooth shape, high precision, good wear resistance and load-bearing capacity, providing a stable and reliable transmission foundation for meshing with the slide rail gear 151 in the drive assembly 15.

[0088] The guide groove 11, formed on the outer surface of the track 14, extends along the length of the track 14 and remains parallel to the extension direction of the groove 12. The width and depth of the guide groove 11 are rationally set according to actual usage requirements. Its main function is to provide guidance and limiting for the movement of components such as the movable suction cup clamp 16, preventing lateral deviation or wobbling during movement and ensuring accuracy and stability. The edges of the guide groove 11 are rounded to prevent scratching during component movement and reduce wear.

[0089] The slide rail gear 151 is placed in the groove 12 and meshes tightly with the slide rail rack 13. It is made of high-strength hardened steel, and after quenching and tempering, it has high surface hardness and strong wear resistance, capable of withstanding large transmission torque. The gear's module, number of teeth, and other parameters are precisely calculated and designed according to the required transmission ratio and driving force requirements, ensuring that under the drive motor 152, it can roll smoothly and accurately along the slide rail rack 13, realizing the linear movement of the drive assembly 15 on the track 14.

[0090] The drive motor 152 is a high-performance servo motor with high-precision speed and position control capabilities. The motor's output shaft is rigidly connected to the central shaft of the slide rail gear 151 via a coupling, ensuring efficient and stable power transmission. The servo motor is equipped with an advanced encoder, which can provide real-time feedback on the motor's speed and rotation angle information. In conjunction with the control system, it can precisely control the moving speed, moving distance, and positioning accuracy of the drive component 15, meeting the precise positional requirements in different bag-retrieving operation scenarios.

[0091] At the connection between the drive motor 152 and the slide rail gear 151, a flexible coupling with good elasticity and buffering performance is used. This coupling not only effectively transmits torque but also absorbs the impact generated during motor start-up and shutdown to a certain extent, protecting the motor and gear from damage. Furthermore, to ensure smoother meshing between the slide rail gear 151 and the slide rail rack 13, an appropriate amount of lubricating grease is placed in the groove 12. Regular lubrication maintenance reduces frictional wear between the gear and rack, lowers noise, and extends the service life of the components.

[0092] The main frame of the mobile suction cup clamp 16 is made of lightweight yet robust engineering plastic, a material that ensures structural strength while offering good machinability and cost-effectiveness. The clamp's shape is designed with the contact method with the packaging bag and the layout of the suction cups in mind, resulting in a suitable shape and size to ensure stable gripping and transfer of the packaging bag.

[0093] The mobile suction cup telescopic rod 153 connects the drive motor 152 and the mobile suction cup clamp 16. It is an electric push rod with adjustable extension stroke and sufficient thrust. The outer shell of the electric push rod is made of high-strength aluminum alloy tubing, and the internal transmission components such as the lead screw and nut are precision-machined to ensure smooth and high-precision operation during extension and retraction. By controlling the electric push rod through the control system, the vertical position of the mobile suction cup clamp 16 can be flexibly adjusted to adapt to the needs of grasping packaging bags at different heights.

[0094] The first suction cup, located at the bottom of the mobile suction cup clamp 16, is a key component for gripping the packaging bag. The first suction cup is made of high-quality rubber, which features high elasticity, high adhesion, and good wear and aging resistance. The suction cup is typically circular, with its diameter designed according to the size of common packaging bags. Multiple suction cups are evenly distributed at the bottom of the clamp in a specific layout, ensuring uniform and sufficient adhesion to the packaging bag. Each suction cup is connected to a vacuum generator via an independent air path. The vacuum generator can quickly generate negative pressure, firmly adhering the suction cup to the surface of the packaging bag. The adsorption and release of each suction cup can be individually controlled by the control system to accommodate packaging bags of different shapes and conditions.

[0095] Driven by the drive motor 152, the movable suction cup gripper 16 can reciprocate between a first position and a second position. The control system precisely controls the rotation direction and number of rotations of the drive motor 152 through a pre-set program and position information fed back from sensors, thereby controlling the gripper's moving direction and distance. During the movement from the first position to the second position, the gripper maintains the suction cup's adsorption state on the packaging bag, ensuring stable transfer of the bag. Upon reaching the second position, the position of the gripper and the adsorption state of the suction cup can be adjusted in a timely manner according to the readiness of the subsequent bag-opening component 2, preparing to accurately hand over the packaging bag to the bag-opening component 2.

[0096] The fixed suction cup clamp 17 is securely installed at a specific position on the track 14 by bolt connection. The installation position is precisely calibrated to ensure that its relative position to the movable suction cup clamp 16 in the first position is accurate. The bolts are made of high-strength stainless steel, which has good anti-loosening ability and can ensure that the fixed suction cup clamp 17 remains in a stable installation state during long-term operation of the equipment, without displacement due to vibration or other factors.

[0097] The second suction cup on the fixed suction cup clamp 17 is also made of high-quality rubber material, with similar material properties to the first suction cup, but its size and quantity may differ depending on actual usage requirements. The main function of the second suction cup is to work in conjunction with the first suction cup when the movable suction cup clamp 16 is in the first position, further enhancing the suction capacity of the packaging bag. Especially for some larger or heavier packaging bags, the combined action of the upper and lower suction cups can more reliably fix the packaging bag, preventing the packaging bag from slipping during the handover process.

[0098] When the movable suction cup clamp 16 moves to the first position, the fixed suction cup clamp 17 is located directly below it. The second suction cup adheres to the bottom of the packaging bag, and the movable suction cup telescopic rod 153 drives the movable suction cup clamp 16 to move upward. Through the adhesion of the first and second suction cups, the opening of the packaging bag is opened so that the subsequent bag opening component 2 can be inserted into the packaging bag to open the packaging bag completely.

[0099] In one feasible embodiment, a packaging bag storage box 8 is also included for storing packaging bags. It is disposed below the track 14. When the movable suction cup clamp 16 moves to the second position, the movable suction cup clamp 16 is located above the packaging bag storage box 8. The movable suction cup telescopic rod 153 drives the movable suction cup clamp 16 to approach the packaging bag storage box 8 and sucks up the packaging bag through the first suction cup.

[0100] In this embodiment, the packaging bag storage box 8 is mounted on a packaging bag storage box 8 fixing frame. The packaging bag storage box 8 is injection molded from high-strength plastic material, which has good toughness, wear resistance, and chemical stability, and can store packaging bags for a long time without damage or deformation. The storage box 8 is generally rectangular or cubic in shape, and its internal space is rationally designed according to the size and quantity of common packaging bags to ensure that it can accommodate a sufficient number of packaging bags and facilitate retrieval and placement. The top opening of the storage box 8 is designed to be relatively large, so that the movable suction cup clamp 16 can be smoothly inserted into it to pick up the packaging bags. At the same time, the edges of the opening are rounded to prevent the packaging bags from being scratched during insertion and removal.

[0101] The packaging bag storage box 8 fixing frame is positioned and installed on the ground or equipment mounting platform via positioning feet at the bottom. The positioning feet are height-adjustable; the level of the packaging bag storage box 8 fixing frame can be finely adjusted by rotating the adjusting nut to ensure that it is in a stable state after installation. This prevents packaging bags inside the packaging bag storage box 8 from piling up unevenly due to uneven placement, which would affect the bag retrieval operation. The packaging bag storage box 8 fixing frame is fixed to the track 14 via connectors, which are usually metal brackets or plastic buckles. This ensures that the position of the packaging bag storage box 8 within the fixing frame relative to the track 14 is fixed, so that the moving suction cup clamp 16 can accurately and reliably be positioned above the storage box 8 to retrieve the bag each time it moves to the second position.

[0102] An internal bag sorting device is installed inside the bag storage box 8, which mainly consists of inclined guide plates and dividers. The guide plates are installed around the inner wall of the storage box 8, tilted at a certain angle towards the center, guiding the bags to automatically converge towards the center for easy pickup by the movable suction cup clamp 16. The dividers are vertically installed inside the storage box 8, dividing it into multiple small areas to prevent bags from piling up haphazardly and ensuring each bag is in a relatively independent and easily graspable position. Furthermore, ventilation holes are provided at the bottom of the storage box 8 to help keep the bags dry and prevent moisture from affecting their quality and subsequent performance.

[0103] In one feasible embodiment, a support is provided on one side of the feeding conveyor belt 3, and a pushing assembly 4 is disposed on the support. The pushing assembly 4 includes:

[0104] Push plate 41 is positioned above and close to the feeding conveyor belt 3, and is hinged to the bracket.

[0105] A drive rod 42 is included, which is connected to a push plate 41 and is used to push the push plate 41 to push the bread on the feeding conveyor belt 3 into the packaging bag.

[0106] In this embodiment, the pusher plate 41, as the component that directly contacts and pushes the bread, is made of food-grade polytetrafluoroethylene (PTFE) plastic sheet. This material has an extremely low coefficient of surface friction, which minimizes damage to the bread surface during pushing, ensuring the bread's appearance integrity. The pusher plate 41 is rectangular in shape, and its length and width are reasonably adapted to the width of the feeding conveyor belt 3 and the size of the bread, ensuring that it can cover a certain area of ​​bread and improve pushing efficiency. The front edge of the pusher plate 41 adopts an arc-shaped design, further reducing the impact force when in contact with the bread and preventing the bread from being squeezed and deformed during pushing.

[0107] The pusher plate 41 is hinged to the bracket via a specially designed hinge structure. The hinge is made of stainless steel, providing excellent corrosion resistance and rotational flexibility. The hinge pin is precision ground to a smooth surface and is fitted with a wear-resistant oil-impregnated bearing, allowing the pusher plate 41 to rotate flexibly around the pin. When not pushing bread, the pusher plate 41 hangs naturally under its own weight, maintaining a safe distance from the conveyor belt to prevent interference with the bread being transported normally on the conveyor belt. When pushing bread is needed, it can smoothly rotate around the hinge under the action of the drive rod 42, accurately pushing the bread into the packaging bag.

[0108] The drive rod 42 is a key component providing the driving power for the push plate 41. It mainly consists of a cylinder, a piston rod, and a connector. A thin-type cylinder is used, which has advantages such as compact structure, small footprint, and large output thrust. Its cylinder barrel is made of aluminum alloy and anodized, providing excellent corrosion resistance and heat dissipation. The piston and seals inside the cylinder are made of high-quality wear-resistant materials to ensure good sealing performance during long-term reciprocating motion, preventing gas leakage and thus ensuring stable thrust output.

[0109] The piston rod is connected to the piston via a thread and is made of high-strength stainless steel with a chrome-plated surface, which improves its wear resistance and corrosion resistance. It also possesses excellent straightness, enabling smooth and precise linear extension and retraction under the drive of the cylinder. The end of the piston rod is connected to the push plate 41 via a specially designed connector. This connector uses an adjustable-angle ball joint structure to accommodate changes in the angle of the push plate 41 during rotation, ensuring smooth power transmission and preventing jamming at the connection point from affecting the normal pushing action of the push plate 41.

[0110] The movement of the drive rod 42 is precisely controlled by the control system. The control system determines when to activate the drive rod 42 to push the bread based on the bread position detection signal on the feeding conveyor belt 3 (provided by a photoelectric sensor installed on the conveyor belt) and the bag arrival signal (feedback from the bag opening assembly 2). When the pushing conditions are met, the control system sends an electrical signal to the solenoid valve of the cylinder to control the air intake and exhaust direction of the cylinder, thereby driving the piston rod to extend or retract, and driving the push plate 41 to complete the pushing action.

[0111] To accommodate variations in pushing distance for different bread sizes and bagging requirements, the drive rod 42 also features a stroke adjustment function. A stroke adjustment device, typically an adjustable limit nut structure, is installed on the cylinder barrel. By rotating the limit nut, the effective stroke range of the piston rod can be changed, thereby precisely controlling the pushing stroke of the push plate 41. This ensures the bread is accurately pushed into the appropriate position within the packaging bag, preventing excessive or insufficient pushing that could affect bagging quality.

[0112] Reference Figures 1 to 3 In one feasible embodiment, the sorting module 5 includes a discharge conveyor belt, and the feeding conveyor belt 3 delivers the bread-filled packaging bags onto the discharge conveyor belt;

[0113] A packaging bag auxiliary standing device 6 is installed on the discharge conveyor belt near the feeding conveyor belt 3. When the discharge conveyor belt can transport the packaging bag to the packaging bag auxiliary standing device 6, the packaging bag auxiliary standing device 6 will lift the packaging bag into an upright position and then transport it to the next process by the discharge conveyor belt. It includes a support frame 51, and multiple synchronously rotating self-rotating rollers 52 are evenly spaced at the center of the support frame 51. The self-rotating rollers 52 drive the packaging bag to move.

[0114] The packaging bag auxiliary standing device 6 is set on the support frame 51. The roller of the discharge conveyor belt near the feeding conveyor belt 3 is a slotted roller 53. When the packaging bag auxiliary standing device 6 is in the initial position, the packaging bag auxiliary standing device 6 is located in the slot of the slotted roller 53 so that the upper surface of the packaging bag auxiliary standing device 6 is flush with the transport surface of the discharge conveyor belt.

[0115] In this embodiment, the discharge conveyor belt is responsible for receiving the bread-filled packaging bags from the feeding conveyor belt 3 and smoothly transporting them to the next process. Its overall structure is built around the support frame 51, and the various components cooperate with each other to achieve efficient and stable conveying functions.

[0116] The support frame 51 is welded from high-strength steel, which undergoes rigorous quality testing to ensure it possesses excellent mechanical properties, such as tensile strength and yield strength, to withstand the weight of the entire conveyor belt and packaging bags, as well as various forces during operation. The frame is rectangular in shape, with its length and width designed according to the actual production line layout and the conveying requirements of the packaging bags, ensuring it covers a reasonable conveying range while facilitating connection with equipment in upstream and downstream processes.

[0117] Below the support frame 51, multiple support feet are evenly distributed, and the support feet are firmly fixed to the ground or equipment foundation platform by anchor bolts. The specifications, materials, and embedment depth of the anchor bolts have been precisely calculated, taking into full account factors such as the equipment's own weight, vibration during operation, and potential external impact forces, ensuring that the support frame 51 remains stable during long-term use and will not loosen or tilt, providing a solid foundation for the smooth operation of the discharge conveyor belt.

[0118] After the main structure of the support frame 51 is welded, a series of surface treatment processes are performed. First, shot blasting is conducted to remove rust, scale, and other impurities from the steel surface by high-speed shot impact, giving the steel surface a certain roughness and enhancing the adhesion of subsequent coatings. Next, epoxy zinc-rich primer, epoxy micaceous iron oxide intermediate coat, and polyurethane topcoat are sprayed sequentially to form a multi-layered protective system. The epoxy zinc-rich primer, rich in zinc powder, provides electrochemical protection for the steel, preventing rust; the epoxy micaceous iron oxide intermediate coat further enhances the shielding effect of the coating, blocking the intrusion of external corrosive media; and the polyurethane topcoat has excellent weather resistance, wear resistance, and decorative properties, enabling the support frame 51 to maintain good appearance and structural integrity for a long time in complex production environments.

[0119] Inside the support frame 51, multiple reinforcing ribs are arranged along its length and width. These ribs are made of the same steel as the main frame and are connected to the frame by welding. The layout of the reinforcing ribs has been optimized through mechanical analysis and simulation, and they are mainly distributed in areas subject to high stress, such as the installation positions of the support rollers and the connection points with other equipment. They effectively improve the overall rigidity of the frame, prevent deformation during the carrying of packaging bags and operation, and ensure the structural stability of the support frame 51.

[0120] Multiple synchronously rotating rollers 52 are evenly spaced at the center of the support frame 51. Each roller 52 mainly consists of an outer ring, a hub, a bearing, and a shaft. The choice of material for the outer ring is crucial, and it is usually made of wear-resistant rubber or high-performance engineering plastics with a certain degree of elasticity. If rubber is used, it is generally a composite formula of high-quality natural rubber and synthetic rubber, which has good wear resistance, aging resistance, and high friction with the packaging bag. This ensures effective driving of the packaging bag without scratching its surface even after prolonged contact. For rollers made of engineering plastic, wear-resistant agents, lubricants, and other additives are added to improve their wear resistance, and a special surface treatment process is used to create an appropriate texture on the surface, increasing the friction with the packaging bag and ensuring stable movement of the packaging bag.

[0121] As the core component supporting the outer ring of the roller, the wheel hub is made of high-strength aluminum alloy or carbon steel, formed by precision casting or forging, and then machined to ensure its dimensional accuracy and surface quality. The wheel hub's interior features holes for mounting bearings and keyways for mating with the shaft, ensuring a secure connection between components and accurate power transmission.

[0122] The bearings are high-precision deep groove ball bearings, with inner and outer rings made of high-quality bearing steel. They undergo heat treatment and machining processes such as quenching and grinding, resulting in a surface with high hardness and low roughness. The rolling elements are made of high-quality chromium steel, ensuring high load-carrying capacity, low friction coefficient, and long service life. Appropriate fit tolerances are used during bearing installation, and strict cleaning and lubrication procedures are performed to ensure smooth rotation of the bearing within the self-rotating roller 52, reducing energy loss and improving roller rotation efficiency.

[0123] The shaft is typically made of stainless steel, which has good corrosion resistance and sufficient strength. Through machining processes such as turning and grinding, the shaft's straightness, coaxiality, and other geometric tolerances are ensured to meet requirements, providing reliable support for the stable rotation of the roller. Both ends of the shaft are fixed to corresponding mounting seats on the support frame 51 using appropriate methods (such as interference fit, key connection, or set screw connection), ensuring that the self-rotating roller 52 does not experience axial movement or radial offset during operation.

[0124] Synchronous rotation among multiple rotating rollers 52 is achieved through a synchronous transmission system. Common synchronous transmission systems include synchronous belt drives and chain drives; this explanation uses a synchronous belt drive as an example. The synchronous belt is made of high-strength, wear-resistant, and highly elastic polyurethane material with an internal steel wire core to enhance its tensile strength, ensuring it will not elongate or break during long-term transmission. The synchronous belt pulleys are fixed to the shafts of the rotating rollers 52 via key connections, ensuring accurate power transmission. In the entire synchronous transmission system, a drive motor 152 serves as the power source. The motor's output shaft is connected to one of the synchronous belt pulleys. When the motor starts, the synchronous belt drives the other connected synchronous belt pulleys and their corresponding rotating rollers 52 to rotate synchronously, ensuring that all rotating rollers 52 rotate at the same speed and in the same direction. This allows the packaging bag to move smoothly and evenly across the multiple rotating rollers 52, preventing problems such as jamming or shifting caused by differences in roller speeds.

[0125] The rollers on the discharge conveyor belt near the feeding conveyor belt 3 are designed as slotted rollers 53. This is to achieve precise coordination with the packaging bag auxiliary standing device 6, ensuring that the packaging bags can smoothly transition and complete the standing action. The structure of the slotted rollers 53 is specially designed based on ordinary conveyor rollers. Its surface has equally spaced slots along the circumference. The number, width, depth, and spacing of the slots are carefully designed according to the size and shape of the packaging bags and the characteristics of the placement and transportation of packaging bags in actual production.

[0126] The grooved roller 53 is generally made of high-quality carbon steel, which undergoes heat treatment processes such as forging and tempering to improve its comprehensive mechanical properties. It is then machined to ensure dimensional accuracy and surface quality. The grooves on the roller surface are machined using CNC technology to ensure that the grooves are regular in shape, precise in size, and smooth in surface, preventing scratches or jamming of the packaging bags during transport.

[0127] The grooved roller 53 is installed in a similar manner to ordinary conveyor rollers, mounted on the corresponding bearing seat on the support frame 51 via bearings. High-precision deep groove ball bearings are also selected to ensure the roller can rotate freely. During installation, the axial position and radial runout of the grooved roller 53 are precisely adjusted to ensure good coordination with other conveyor rollers and the packaging bag auxiliary standing device 6, thus ensuring the smooth operation of the entire discharge conveyor belt.

[0128] The packaging bag auxiliary standing device 6 is installed on the support frame 51 of the discharge conveyor belt and is located close to the feeding conveyor belt 3. It works closely with the discharge conveyor belt and the slotted roller 53 to complete the process of straightening the packaging bag from lying flat to standing upright.

[0129] The main structure of the packaging bag auxiliary standing device 6 is fixed to the support frame 51 by welding or bolt connection. The installation position is precisely measured and adjusted to ensure that when the device is in the initial position, it is exactly located in the groove of the slotted roller 53, and its upper surface is strictly flush with the conveyor belt surface.

[0130] The packaging bag standing device 6 mainly consists of guiding components, supporting components, and driving components. All components work together to gradually turn the packaging bag into an upright position.

[0131] The guiding components are located on both sides of the device, typically in the form of inclined guide plates or curved guide tracks 14. They are made of food-grade plastics (such as polypropylene, polyethylene, etc.) or smooth-surfaced thin metal sheets (such as stainless steel sheets). These materials have good flexibility and a low coefficient of friction, effectively guiding the packaging bags without scratching them. The inclination angle or curvature of the guiding components is optimized according to the size and shape of the packaging bags. When the packaging bags transition from the discharge conveyor belt to the auxiliary standing device 6, the guiding components apply appropriate lateral forces to both sides of the packaging bags, causing them to gradually adjust their posture along the guiding direction under the drive of the rotating rollers 52, transforming them into a standing position.

[0132] Support components are distributed at key locations on the device, primarily serving to assist in supporting and stabilizing the packaging bag. These components can take the form of adjustable-height and adjustable-angle elastic support arms or small sets of rolling wheels. For example, an elastic support arm uses a combination of springs and metal rods. The springs provide a certain amount of elastic support force, which can be adjusted according to the weight and size of the packaging bag by adjusting the spring constant or the length of the support arm, ensuring adequate support during the bag's standing process and preventing it from tipping over. Small sets of rolling wheels contact the packaging bag through rolling, reducing friction and assisting in the smooth movement of the bag on the device, further ensuring a successful standing process.

[0133] The drive unit provides the necessary or auxiliary power for the uprighting action of the packaging bag. It can be linked with the drive system of the discharge conveyor belt, or it can be equipped with a separate power source such as a small drive motor 152. For example, in some designs, the drive unit is connected to the transmission system of the self-rotating roller 52 through gear transmission or belt transmission. When the self-rotating roller 52 rotates, the drive unit can apply additional rotational torque in a timely manner according to the actual state of the packaging bag, helping the packaging bag to better adjust its angle, speed up the uprighting process, and ensure that the entire uprighting process is more efficient and stable.

[0134] During operation, when the discharge conveyor belt transports the bread-filled packaging bag to the slotted roller 53, due to the special structure of the slotted roller 53 and its precise cooperation with the packaging bag auxiliary standing device 6, the packaging bag can smoothly transition from the discharge conveyor belt to the auxiliary standing device 6. At this time, the self-rotating roller 52 continues to rotate, providing forward movement power for the packaging bag.

[0135] As the packaging bag moves on the rotating roller 52, the guiding components of the packaging bag standing device 6 begin to function, guiding the sides of the packaging bag to gradually converge towards the center and adjust its posture. Simultaneously, the supporting components provide stable support to the packaging bag as needed, preventing it from tipping over due to changes in the center of gravity during the standing process. The driving components, as needed, provide additional assistance for the rotation and posture adjustment of the packaging bag, ensuring that the packaging bag can smoothly complete the transition from lying flat to standing.

[0136] After the packaging bag is fully upright, the rotating roller 52 continues to drive the packaging bag forward along the discharge conveyor belt, and finally transports the upright packaging bag to the next process. Throughout the process, the discharge conveyor belt, the slotted roller 53 and the packaging bag auxiliary standing device 6 work closely together to achieve efficient sorting and orderly transportation of the packaging bags.

[0137] After the feeding conveyor belt 3 delivers the bread-filled packaging bag to the discharging conveyor belt, the discharging conveyor belt starts to rotate at a constant speed under the action of the drive system, driving the packaging bag to move along the conveyor belt in the direction of the packaging bag auxiliary standing device 6.

[0138] When the packaging bag approaches the packaging bag auxiliary standing device 6, the packaging bag first contacts the slotted roller 53. Due to the slotted structure of the slotted roller 53 and its flush design with the packaging bag auxiliary standing device 6, the packaging bag can smoothly transition onto the auxiliary standing device 6. At this time, the self-rotating roller 52 continues to rotate, providing stable moving power for the packaging bag, so that it can continue to move forward on the auxiliary standing device 6.

[0139] As the packaging bag moves, the guiding components of the packaging bag standing device 6 begin to apply lateral guiding forces to both sides of the packaging bag, prompting the packaging bag to gradually adjust its posture and transition to a standing position. During this process, the supporting components provide corresponding support force according to the actual state of the packaging bag, ensuring the stability of the packaging bag's center of gravity and preventing it from tipping over. At the same time, the driving components apply auxiliary power as needed to help the packaging bag better complete the angle adjustment and standing action.

[0140] Throughout the process of the packaging bag standing up, the control system monitors in real time the operating speed of the discharge conveyor belt, the rotation of the self-rotating roller 52, and the position and posture of the packaging bag. It collects relevant data through sensors installed in key locations (such as speed sensors, angle sensors, and displacement sensors) and compares this data with preset normal operating parameter ranges. If any abnormal data is detected, the control system immediately issues an alarm signal, prompting operators to promptly check and maintain the system, ensuring that the packaging bag can successfully complete the standing action and that the entire conveying and sorting process can proceed stably and efficiently.

[0141] A protective railing is installed around the equipment. The railing is constructed from high-strength stainless steel tubing, with the spacing between the tubing meeting safety standards. This effectively prevents operators from accidentally touching operating equipment parts, thus avoiding accidents and injuries. The height and installation location of the railing are rationally designed to ensure that it does not obstruct the operator's normal operation and observation of the equipment while providing reliable safety protection.

[0142] An emergency stop button is installed in a prominent position on the equipment. The emergency stop button is directly connected to the control system. In case of an emergency (such as equipment failure, accidental personnel approach, etc.), the operator only needs to press the emergency stop button, and the control system will immediately cut off the power to the entire discharge conveyor belt and the packaging bag auxiliary standing device 6, so that all running parts (such as motors, self-rotating rollers 52, etc.) stop running instantly, maximizing the safety of equipment and personnel.

[0143] For the drive system of the discharge conveyor belt, the motor is equipped with an overload protection device. When the motor is overloaded due to excessive load, the overload protection device will automatically cut off the power supply to the motor to prevent the motor from burning out due to prolonged overload operation, avoid electrical fires and other safety accidents, and also protect other components of the entire drive system from damage.

[0144] In the packaging bag auxiliary standing device 6, protective covers or protective nets are provided for some parts that may pose a risk of pinching hands (such as the gap between the self-rotating roller 52 and the guide component, the moving parts of the support component, etc.). These protective components are made of sturdy and easy-to-observe materials, which can not only prevent the operator's hands from accidentally reaching into the dangerous area, but also make it convenient for the operator to check the operation of the internal components during the operation of the equipment, thus ensuring the safety of personnel during the operation of the equipment.

[0145] Simultaneously, it is equipped with an equipment operation status monitoring system. By installing various types of sensors, such as temperature sensors, vibration sensors, and displacement sensors, at various key locations, it collects the equipment's operating parameter information in real time and transmits this data to the control system for analysis and processing. Once abnormal parameters are detected (such as excessively high temperature in a certain part, excessive vibration amplitude, or component displacement exceeding the normal range), the control system can promptly and accurately locate the faulty part and prompt operators to perform targeted maintenance and repairs, ensuring long-term stable operation of the equipment, reducing production interruptions caused by equipment failures, and improving production efficiency.

[0146] It also includes a detection device 7, which is set on one side of the packaging bag auxiliary standing device 6 on the support frame 51. The detection device 7 is used to detect the movement position of the packaging bag. When the packaging bag moves to the upper surface of the packaging bag auxiliary standing device 6, the detection device 7 is triggered, the packaging bag auxiliary standing device 6 is activated, and the packaging bag is straightened to the position with the bag opening facing upward.

[0147] In this embodiment, the detection device 7 is mounted on the support frame 51, located on one side of the packaging bag auxiliary standing device 6. Its position ensures accurate detection of the movement of the packaging bag on the conveyor belt. The detection device 7 mainly consists of sensors, mounting brackets, and signal transmission lines.

[0148] The sensor is the core component of the detection device 7. Depending on the detection principle, photoelectric sensors or proximity sensors are selected. Photoelectric sensors determine whether an object has entered the detection area by emitting and receiving light, featuring high detection accuracy and fast response speed. Proximity sensors, on the other hand, use principles such as electromagnetic fields to detect the presence of nearby objects and have good sensing effects on packaging bags of different materials. The sensor housing is made of sturdy and corrosion-resistant plastic or metal materials, providing good protection and adapting to factors such as dust and moisture in the production environment, ensuring stable and reliable operation.

[0149] The mounting bracket is used to fix the sensor in a suitable position on the support frame 51. Its structure is designed according to the specific shape of the support frame 51 and the installation requirements of the sensor. It is made of metal and connected to the support frame 51 by welding or bolting to ensure a firm installation and adjustable position. By adjusting the position and angle of the mounting bracket, the detection range and direction of the sensor can be precisely set so that it is exactly aligned with the expected detection position of the packaging bag on the conveyor belt.

[0150] The signal transmission line is responsible for transmitting the signals detected by the sensors to the control system. The line uses shielded cables to effectively prevent external electromagnetic interference and ensure the accuracy and stability of signal transmission. The cables are routed appropriately inside or outside the support frame 51 and secured using cable trays or cable ties to prevent loosening or tangling during equipment operation.

[0151] The working principle of the detection device 7 is based on the characteristics of the selected sensors to detect the movement position of the packaging bag. Taking a photoelectric sensor as an example, when the packaging bag moves with the discharge conveyor belt to the detection area corresponding to the upper surface of the packaging bag auxiliary standing device 6, it will block the light emitted by the sensor, causing a change in the intensity of the light received by the sensor, thereby triggering the sensor to generate a corresponding electrical signal. The proximity sensor, on the other hand, generates an electrical signal by sensing the change in electromagnetic field caused by the material of the packaging bag when it approaches within a certain distance.

[0152] Once the sensor detects that the packaging bag has reached the set position, it immediately sends a trigger signal to the control system via the signal transmission line. After receiving the signal, the control system performs internal logic judgment and processing to confirm that the packaging bag is in the correct position. It then sends a start command to the packaging bag auxiliary standing device 6, prompting it to initiate the corresponding action to straighten the packaging bag to a position with the opening facing upwards, ensuring that subsequent processes can proceed smoothly.

[0153] Although the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the present invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the present invention to these descriptions. Those skilled in the art can make various changes in form and detail, including some simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. An automatic bread packaging device, characterized in that, include: A bag opening module includes a bag picking component and a bag opening component. The bag picking component is used to pick up and deliver a packaging bag. The bag picking component delivers the packaging bag to the bag opening component, and the bag opening component extends into the packaging bag and opens the packaging bag. The bagging module includes a feeding conveyor belt and a pushing component disposed above the feeding conveyor belt. Bread to be bagged is placed on the feeding conveyor belt. After the packaging bag is opened, it is fed onto the feeding conveyor belt by the bag taking component. The pushing component pushes the bread into the packaging bag. The packaging bag containing the bread is transported to the sorting module by the feeding conveyor belt, and the sorting module transports the packaging bag to the next process.

2. The automatic bread packaging device as described in claim 1, characterized in that, The bag opening component includes: A fixed plate is connected to the bag-taking assembly via a telescopic rod. Multiple support claws are hinged to the fixed plate at equal intervals along its circumference. A through hole is provided at the center of the fixed plate. The support claw telescopic part includes a telescopic rod fixing shaft, which passes through and extends out of the through hole. The telescopic rod fixing shaft is provided with a plurality of support claw telescopic rods corresponding to the number of support claws, and the plurality of support claw telescopic rods are respectively connected to the plurality of support claws.

3. The automatic bread packaging device as described in claim 2, characterized in that, Both the telescopic rod and the fixed shaft of the telescopic rod are hollow and interconnected. A hydraulic component is installed inside the telescopic rod. The hydraulic component is connected to the telescopic claw telescopic rod through the fixed shaft of the telescopic rod and is used to drive the telescopic claw telescopic rod to extend and retract, thereby driving the telescopic claw to open and close.

4. The automatic bread packaging device as described in claim 2, characterized in that, The telescopic rod fixing shaft is fixed to the fixing plate by a large nut, and the support claw telescopic rod is fixed to the telescopic rod fixing shaft by a small nut.

5. The automatic bread packaging device as described in claim 2, characterized in that, The support claw is long and narrow, and along its extension direction, it is bent inward. A soft head can be detachably installed at the end of the support claw.

6. The automatic bread packaging device as described in claim 1, characterized in that, The bag-retrieving component includes: The track has a groove inside, a slide rail rack is installed in the groove, and a guide groove is provided on the outer surface of the track, the extension direction of the guide groove is parallel to the extension direction of the groove. A drive assembly includes a slide rail gear and a drive motor. The slide rail gear is disposed in the groove and meshes with the slide rail rack. The drive motor is driven by the slide rail gear and is used to drive the slide rail gear to rotate so as to move along the slide rail rack. A mobile suction cup clamp is connected to the drive motor via a mobile suction cup telescopic rod and is driven by the drive motor to reciprocate between a first position and a second position. The bottom of the mobile suction cup clamp is provided with a first suction cup, which is used to pick up and deliver the packaging bag. A fixed suction cup clamp is fixedly installed on the track. The fixed suction cup clamp is provided with a second suction cup. When the movable suction cup clamp is in the first position, the fixed suction cup clamp is located below the movable suction cup clamp.

7. The automatic bread packaging device as described in claim 6, characterized in that, It also includes a packaging bag storage box for storing the packaging bags, which is located below the track. When the movable suction cup clamp moves to the second position, the movable suction cup clamp is located above the packaging bag storage box. The movable suction cup telescopic rod drives the movable suction cup clamp to move closer to the packaging bag storage box, and the packaging bag is sucked up by the first suction cup.

8. The automatic bread packaging device as described in claim 1, characterized in that, A support is provided on one side of the feeding conveyor belt, and the pushing assembly is mounted on the support. The pushing assembly includes: A push plate is positioned above and close to the feeding conveyor belt, and is hinged to the bracket. A drive rod, comprising a drive rod connected to the push plate, for pushing the push plate to push the bread on the feeding conveyor belt into the packaging bag.

9. The automatic bread packaging device as described in claim 1, characterized in that, The sorting module includes: A discharge conveyor belt, wherein the feeding conveyor belt delivers the packaging bag containing the bread onto the discharge conveyor belt; A packaging bag standing device is installed on the discharge conveyor belt near the feeding conveyor belt. When the discharge conveyor belt can transport the packaging bag to the packaging bag standing device, the packaging bag standing device will lift the packaging bag into an upright position and then be transported by the discharge conveyor belt to the next process.

10. The automatic bread packaging device as described in claim 9, characterized in that, The discharge conveyor belt is a roller conveyor belt, which includes a support frame. Multiple synchronously rotating self-rotating rollers are evenly spaced at the center of the support frame, and the self-rotating rollers drive the packaging bag to move. The packaging bag auxiliary standing device is mounted on the support frame. The rollers of the discharge conveyor belt near the feeding conveyor belt are slotted rollers. When the packaging bag auxiliary standing device is in its initial position, it is located in the slot of the slotted roller so that the upper surface of the packaging bag auxiliary standing device is flush with the transport surface of the discharge conveyor belt.

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