Bag opening device for a feed bag

By designing a bag-supporting device for feed bag filling, the problems of collapse and automation in the traditional feed bag filling process were solved, realizing automatic opening and fixing, and improving filling efficiency and intelligence.

CN224929341UActive Publication Date: 2026-11-03HUBEI BODA BIOLOGICAL CO LTD
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Patent Information

Application Number
CN202521574900.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-28
Publication Date
2026-11-03
Estimated Expiration
2035-07-28

AI Technical Summary

Technical Problem

Traditional feed bags are prone to collapse during the filling process, making it difficult to coordinate precisely with automated equipment, which limits the degree of automation in filling and requires manual intervention.

Method used

Design a bag-opening device for feed bags, including a top plate, an optical shaft, a drive assembly, an elastic telescopic assembly, and a clamping assembly. The optical shaft drives a conical head to work in conjunction with the elastic telescopic assembly to automatically open the feed bag opening, and the clamping assembly fixes it in place. It is suitable for different bag opening sizes.

Benefits of technology

It enables automatic opening and fixing of feed bag openings, improves filling efficiency, adapts to automated production lines, reduces manual intervention, and promotes intelligent upgrading of the packaging process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to feed packaging technical field, and disclose a kind of bagging device for feed bag loading, including top plate, the top plate board face center place slidingly connected with the light axis of being set through, and top plate is provided with the drive assembly for driving light axis axial movement, the top plate is provided with elastic telescopic component, setting drive assembly, simultaneously with light axis cooperation, drive conical head and elastic telescopic component linkage, realize the automatic opening of feed bag mouth, and adopt conical head and ball head bevel resistance design, axial thrust is converted into radial expansion force, make four moving plate synchronous move outward, ensure bag mouth evenly open, change bagging diameter by adjusting electric push rod stroke, adapt to different specifications feed bag, device can be integrated in existing automated production line, collaborative work with mechanical arm, loading machine and other equipment, promote packaging link intelligent upgrading still be provided with clamping component, can quickly complete bag mouth fixation, significantly improve loading efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of feed packaging technology, specifically a bag-supporting device for feed bag packaging. Background Technology

[0002] Feed is a food specially formulated to meet the nutritional needs of animals. It is the core substance in the animal husbandry industry to ensure the healthy growth of animals and improve their production performance. Through the scientific formulation of various raw materials, it provides comprehensive and balanced nutritional support for animals at different growth stages. Common feed packaging bags are usually woven bags, which form a mesh structure through weaving technology. They have good air permeability, are suitable for packaging pelleted feed, and are convenient for storage and transportation.

[0003] Traditional feed bags are prone to collapse during filling due to their softness and irregular shape, caused by material impact or gravity. This can lead to bag closure or material accumulation, requiring repeated manual adjustments to the bag's position. Furthermore, the flexible nature of feed bags makes them difficult to precisely coordinate with automated equipment such as robotic arms and vacuum suction cups, necessitating manual assistance for positioning or adjustment, thus limiting the level of automation in the filling process. Therefore, a bag-supporting device for feed bag filling is proposed to address these issues. Utility Model Content

[0004] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a bag-supporting device for feed bags, including a top plate. A through-type optical axis is slidably connected to the center of the top plate surface, and a driving component for driving the optical axis to move axially is provided on the top plate. Four elastic telescopic components are provided on the top plate and are distributed in a ring at equal intervals around the center of the top plate. A conical head is provided at the end of the optical axis away from the driving component, which simultaneously abuts against the four elastic telescopic components. A movable plate is provided at the telescopic end of the elastic telescopic component, and one side of the movable plate contacts the inner opening of the feed bag. A clamping component for fixing the opening of the feed bag is provided on the movable plate.

[0005] Furthermore, the drive assembly includes a bracket fixedly installed on one side of the top plate, and a vertically arranged electric push rod is fixedly installed on the bracket. The telescopic end of the electric push rod is fixedly connected to one end of the optical axis.

[0006] Furthermore, the elastic telescopic component includes a linear bearing seat. Several linear bearing seats are fixedly installed on the top plate in a ring-shaped equidistant distribution. A connecting shaft is slidably connected to the linear bearing seats. A ball head is provided at the end of the connecting shaft near the optical axis, and the ball head abuts against one inclined surface of the conical head. A limiting part is provided on the connecting shaft. A spring is provided between the limiting part and the linear bearing seat and sleeved on the outside of the connecting shaft. A push plate is provided at the end of the connecting shaft away from the ball head, and a movable plate is fixedly installed on one side of the push plate. A guide rod is provided on the linear bearing seat, and a guide rod bushing adapted to the guide rod is provided on the push plate.

[0007] Furthermore, the four beveled sides of the conical head are smoothly arranged.

[0008] Furthermore, the clamping assembly includes a rotary cylinder fixedly mounted on the movable plate, and the output end of the rotary cylinder is fixedly connected to a rotating shaft. The rotating shaft is rotatably connected to the movable plate through a bearing seat. An L-shaped plate is provided on the outer side of the rotating shaft, and a pressure plate adapted to the movable plate is provided at the end of the L-shaped plate away from the rotating shaft.

[0009] Furthermore, the side surface of the movable plate near the feed bag is arc-shaped and has several protrusions that are evenly distributed. The side surface of the pressure plate near the movable plate has grooves that match the protrusions.

[0010] The beneficial effects of this utility model are as follows: By setting a driving component, which works in conjunction with an optical axis, this utility model drives the conical head and the elastic telescopic component to automatically open the feed bag opening. Furthermore, the design of the conical head and the beveled surface of the ball head abuts against each other, converting the axial thrust into the radial expansion force, causing the four moving plates to move outward synchronously, ensuring that the bag opening opens evenly. The diameter of the bag opening can be changed by adjusting the stroke of the electric push rod to adapt to different specifications of feed bags. The device can be integrated into existing automated production lines and work in conjunction with robotic arms, filling machines, and other equipment, promoting the intelligent upgrade of the packaging process. It is also equipped with a clamping component, which can quickly fix the bag opening without manual intervention, significantly improving the filling efficiency. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall design of this utility model; Figure 2 This is a bottom view of the present invention.

[0012] Among them, 1. Top plate; 2. Optical axis; 3. Drive assembly; 31. Bracket; 32. Electric push rod; 4. Elastic telescopic assembly; 41. Linear bearing seat; 42. Connecting shaft; 43. Ball head; 44. Limiting part; 45. Spring; 46. Push plate; 47. Guide rod; 48. Guide rod bushing; 5. Conical head; 6. Moving plate; 7. Clamping assembly; 71. Rotary cylinder; 72. Rotating shaft; 73. L-shaped plate; 74. Pressure plate; 8. Protrusion; 9. Groove. Detailed Implementation

[0013] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0014] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this 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 this utility model.

[0015] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0016] In the embodiments, by Figure 1-2Provided is a bag-supporting device for bagged feed, comprising a top plate 1, with a through-axis 2 slidably connected to the center of the top plate 1, and a drive assembly 3 for driving the axial movement of the optical axis 2 on the top plate 1. Four elastic telescopic components 4 are provided on the top plate 1, equidistantly distributed in a ring around the center of the top plate 1. A conical head 5 is provided at the end of the optical axis 2 away from the drive assembly 3, simultaneously abutting against the four elastic telescopic components 4. A movable plate 6 is provided at the telescopic end of each elastic telescopic component 4, with one side of the movable plate 6 contacting the inner opening of the feed bag. A clamping assembly 7 is provided on the movable plate 6 for fixing the opening of the feed bag, surrounding the opening of the feed bag around the four sides of the movable plate 6. The pneumatic drive assembly 3 is also provided. The drive assembly 3 pushes the optical shaft 2 to move along the central axis of the top plate 1, causing the conical head 5 at the end of the optical shaft 2 to move down synchronously. The inclined surface of the conical head 5 contacts the ball head 43 of the four elastic telescopic components 4, converting the axial thrust into a radial component force, which pushes the connecting shaft 42 to drive the moving plate 6 to expand outward, thus automatically opening the feed bag opening. When the bag opening is opened to a certain area, the rotary cylinder drives the rotating shaft 72 to rotate, causing the L-shaped plate 73 and the pressure plate 74 to press down, so that the groove 9 of the pressure plate 74 fits into the protrusion 8 of the moving plate 6, completing the mechanical fixation of the bag opening. The bottom of the top plate 1 is fixedly installed with a base plate by a column, and a sealing plate is set between the top plate 1 and the base plate to prevent the feed from contacting this device when the feed bag is filled, thus preventing loss.

[0017] Reference Figure 1-2 The drive assembly 3 includes a bracket 31 fixedly installed on one side of the top plate 1. A vertically arranged electric push rod 32 is fixedly installed on the bracket 31. The telescopic end of the electric push rod 32 is fixedly connected to one end of the optical axis 2.

[0018] Reference Figure 1-2 The elastic telescopic component 4 includes a linear bearing seat 41. Several linear bearing seats 41 are fixedly installed on the top plate 1 in an annular and equidistant arrangement. A connecting shaft 42 is slidably connected to the linear bearing seat 41. A ball head 43 is provided at one end of the connecting shaft 42 near the optical axis 2. The ball head 43 abuts against one side of the inclined surface of the conical head 5. A limiting part 44 is provided on the connecting shaft 42. A spring 45 is sleeved on the outside of the connecting shaft 42 between the limiting part 44 and the linear bearing seat 41. A push plate 46 is provided at one end of the connecting shaft 42 away from the ball head 43. A moving plate 6 is fixedly installed on one side of the push plate 46. A guide rod 47 is provided on the linear bearing seat 41. A guide rod bushing 48 adapted to the guide rod 47 is provided on the push plate 46. With the above structural configuration, when the optical axis 2 drives the conical head 5 to move axially, its inclined surface forms a rolling contact with the ball head 43 at the end of the connecting shaft 42, converting the linear motion of the conical head 5 into the radial displacement of the connecting shaft 42, realizing the direction conversion of mechanical force, thereby enabling the feed bag opening to expand outward. When the connecting shaft 42 moves, it compresses the spring 45. The spring 45 provides a stable rebound force through the cooperation of the limiting part 44 and the linear bearing seat 41, ensuring that the push plate 46 retracts inward when the optical axis 2 is reset. The guide rod 47 cooperates with the guide rod bushing 48 to ensure the linearity of the push plate 46 movement, so that the entire elastic telescopic assembly 4 works stably.

[0019] Reference Figure 1-2 The four beveled sides of the conical head 5 are smoothly arranged. With the above structural design, when the conical head 5 is subjected to external force and undergoes displacement or rotation, its four sides are smooth, which reduces frictional resistance during contact with the ball head 43 at one end of the connecting shaft 42 in the elastic telescopic component 4.

[0020] Reference Figure 1-2 The clamping assembly 7 includes a rotary cylinder 71 fixedly mounted on the movable plate 6, and the output end of the rotary cylinder 71 is fixedly connected to a rotating shaft 72. The rotating shaft 72 is rotatably connected to the movable plate 6 through a bearing seat. An L-shaped plate 73 is provided on the outer side of the rotating shaft 72, and a pressure plate 74 adapted to the movable plate 6 is provided at the end of the L-shaped plate 73 away from the rotating shaft 72. With the above-described structure, the output end of the rotary cylinder 71 generates rotational power, which directly drives the rotating shaft 72 fixedly connected to it to rotate. The rotating shaft 72 is supported by a bearing seat mounted on the moving plate 6, ensuring the smoothness and accuracy of the rotation of the rotating shaft 72 and reducing friction and shaking during the rotation process. As the rotating shaft 72 rotates, the L-shaped plate 73 set on the outer side of the rotating shaft 72 also moves in a circle around the rotating shaft 72. The pressure plate 74 moves accordingly. When the pressure plate 74 moves to a position opposite to the moving plate 6, a clamping space is formed between the two, thereby clamping the workpiece placed on the moving plate 6. When it is necessary to release the workpiece, the rotary cylinder 71 rotates in the opposite direction. Through the above-described reverse transmission process, the pressure plate 74 is moved away from the moving plate 6, releasing the clamping of the workpiece.

[0021] Reference Figure 1-2 The movable plate 6 has an arc-shaped surface on the side near the feed bag and has several protrusions 8 that are evenly distributed. The pressure plate 74 has a groove 9 on the side near the movable plate 6 that matches the protrusions 8. With the above structural design, the movable plate 6 is arc-shaped on the side near the feed bag, which can better fit the shape of the feed bag and increase the contact area with the feed bag. When the pressure plate 74 is close to the movable plate 6 to clamp the feed bag, the groove 9 on the pressure plate 74 that matches the protrusion 8 will fit into the protrusion 8, further enhancing the stability of the clamping and preventing the feed bag from sliding or falling off during the clamping process.

[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bag-supporting device for bagged feed, comprising a top plate (1), characterized in that: The top plate (1) has a through-type optical axis (2) slidably connected at the center of the plate surface, and the top plate (1) is provided with a drive assembly (3) for driving the optical axis (2) to move axially. The top plate (1) is provided with an elastic telescopic assembly (4), and there are four elastic telescopic assemblies (4) distributed in a ring at equal intervals at the center of the top plate (1). The end of the optical axis (2) away from the drive assembly (3) is provided with a conical head (5) that simultaneously abuts against the four elastic telescopic assemblies (4). The telescopic end of the elastic telescopic assembly (4) is provided with a moving plate (6), and one side of the moving plate (6) is in contact with the inner opening of the feed bag. The moving plate (6) is provided with a clamping assembly (7) for fixing the opening of the feed bag.

2. The bag-supporting device for bagged feed according to claim 1, characterized in that: The drive assembly (3) includes a bracket (31) fixedly installed on one side of the top plate (1), and an electric push rod (32) arranged vertically is fixedly installed on the bracket (31). The telescopic end of the electric push rod (32) is fixedly connected to one end of the optical axis (2).

3. The bag-supporting device for bagged feed according to claim 1, characterized in that: The elastic telescopic component (4) includes a linear bearing seat (41). Several linear bearing seats (41) are fixedly installed on the top plate (1) and are distributed in a ring at equal intervals. A connecting shaft (42) is slidably connected to the linear bearing seat (41). A ball head (43) is provided at one end of the connecting shaft (42) near the optical axis (2). The ball head (43) abuts against one side of the inclined surface of the conical head (5). A limiting part (44) is provided on the connecting shaft (42). A spring (45) is sleeved on the outside of the connecting shaft (42) between the limiting part (44) and the linear bearing seat (41). A push plate (46) is provided at one end of the connecting shaft (42) away from the ball head (43). A moving plate (6) is fixedly installed on one side of the push plate (46). A guide rod (47) is provided on the linear bearing seat (41). A guide rod bushing (48) adapted to the guide rod (47) is provided on the push plate (46).

4. The bag-supporting device for bagged feed according to claim 1, characterized in that: The four beveled sides of the conical head (5) are smoothly arranged.

5. A bag-supporting device for bagged feed according to claim 1, characterized in that: The clamping assembly (7) includes a rotary cylinder (71) fixedly mounted on the movable plate (6), and the output end of the rotary cylinder (71) is fixedly connected to a rotating shaft (72). The rotating shaft (72) is rotatably connected to the movable plate (6) through a bearing seat. An L-shaped plate (73) is provided on the outer side of the rotating shaft (72), and a pressure plate (74) adapted to the movable plate (6) is provided at the end of the L-shaped plate (73) away from the rotating shaft (72).

6. A bag-supporting device for bagged feed according to claim 5, characterized in that: The movable plate (6) has an arc-shaped surface on the side near the feed bag and has several protrusions (8) that are evenly distributed. The pressure plate (74) has a groove (9) on the side near the movable plate (6) that matches the protrusions (8).