Auxiliary mechanism for bag opening of packaging equipment

Abstract

The utility model relates to the field of packaging equipment and discloses an auxiliary mechanism for bag opening of packaging equipment, which comprises a mounting rod, a manipulator A is rotatably connected to the outer side of the mounting rod, a manipulator B is rotatably connected to the right side, close to the manipulator A, of the mounting rod, and the upper portion of the manipulator A is rotatably connected with the manipulator B through a transmission rod. A bag opening mechanism is arranged on the outer sides of the manipulator A and the manipulator B and comprises a connecting assembly and a supporting assembly, the connecting assembly comprises an air cylinder, the left side of the air cylinder is arranged on the inner side of the manipulator A, and the right side of an output shaft of the air cylinder is fixedly connected with a movable head cap. According to the packaging bag opening device, the air cylinder drives the movable head cap and the connecting cap to move, the mechanical arm A and the mechanical arm B open a packaging bag, after the opening operation is completed, the movable head cap extrudes the compression spring and makes contact with and extrudes the micro-motion detection switch, signal feedback is conducted through mechanical touch, the detection precision is improved, and the risk of bagging failure is reduced.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment, and in particular to an auxiliary mechanism for supporting bags in packaging equipment. Background Technology

[0002] In packaging equipment, the mechanical mechanism for opening bags is achieved by the extension and retraction of cylinders, and the detection of whether the bag opening is successful is crucial.

[0003] Currently, most detection methods rely on magnetic switches on cylinders. However, detection using magnetic switches is affected by many external factors, such as air pressure and cylinder leaks, leading to problems like slow cylinder opening, incomplete stroke, and over-stroke. Magnetic switches also assume successful bagging, thus carrying the risk of bagging failure. Another method uses pressure sensors to detect the pressure output by the cylinder; however, these sensors are often too large and have limited placement, failing to meet installation requirements. Therefore, an auxiliary bag-opening mechanism for packaging equipment is proposed to address these issues. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an auxiliary mechanism for bag support in packaging equipment, which aims to improve the problem in the prior art that "when the cylinder malfunctions, the magnetic switch also detects that the bag is successfully put on by default, which poses a risk of bag failure".

[0005] To achieve the above objectives, this utility model adopts the following technical solution: an auxiliary mechanism for bag support in packaging equipment, including a mounting rod, a robotic arm A rotatably connected to the outer side of the mounting rod, and a robotic arm B rotatably connected to the right side of the mounting rod near the robotic arm A. The upper part of the robotic arm A and the robotic arm B are rotatably connected via a transmission rod. A bag support mechanism is provided on the outer side of the robotic arm A and the robotic arm B. The bag support mechanism includes a connecting component and a supporting component. The connecting component includes a cylinder. The left side of the cylinder is located inside the robotic arm A. A movable head cap is fixedly connected to the right side of the cylinder output shaft. A connecting cap is provided on the right side of the movable head cap. The right side of the connecting cap is rotatably connected to the inner wall of the robotic arm B. A compression spring is sleeved on the outer side of the right part of the movable head cap. An insertion hole is provided through the upper part of both the movable head cap and the connecting cap. A pin is provided on the inner wall of the insertion hole. A groove is provided on the front side of the connecting cap. A micro-motion detection switch is provided on the inner wall of the groove.

[0006] As a further description of the above technical solution:

[0007] The support assembly includes side plates, which are fixedly connected to the lower part of the front and rear sides of the robot A. Multiple sets of side plates are provided, and another set of side plates is provided on the lower part of the front and rear sides of the robot B.

[0008] As a further description of the above technical solution:

[0009] The outer side of the pin slides left and right on the inner wall of the insertion hole.

[0010] As a further description of the above technical solution:

[0011] One side of the compression spring is attached to the outside of the movable head cap, and the other end of the compression spring is attached to the left side of the connecting cap.

[0012] As a further description of the above technical solution:

[0013] The right side of the active headgear is designed as a long column.

[0014] As a further description of the above technical solution:

[0015] The connecting cap has a slot on its left inner wall, and the movable head cap slides on the right side of the slot. The slot is connected to the groove.

[0016] As a further description of the above technical solution:

[0017] An auxiliary component is provided on the outside of the robotic arm B. The auxiliary component includes a housing, which is fixedly connected to the inner wall of the right side of the robotic arm B. A mounting plate is fixedly connected to the right side of the robotic arm B near the housing. A pressing plate is slidably connected to the inner wall of the housing, and multiple sets of pressing plates are provided. The right side of the pressing plate slides through the inner wall of the mounting plate.

[0018] As a further description of the above technical solution:

[0019] The extrusion plate and the outer shell are elastically connected by a return spring. One end of the return spring is fixedly connected to the inner wall of the outer shell, and the other end of the return spring is attached to the left side of the extrusion plate. An anti-slip strip is provided on the outer side of the extrusion plate.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the movable head cap and connecting cap are moved by the cylinder, so that the robotic arm A and robotic arm B can open the packaging bag. After the opening operation is completed, the movable head cap squeezes the compression spring and contacts the compression micro-motion detection switch. The signal feedback is provided through mechanical touch, which improves the detection accuracy and reduces the risk of bagging failure.

[0022] 2. In this utility model, by using the auxiliary components, robotic arm A and robotic arm B in combination, during the bag-opening operation, multiple sets of extrusion plates and return springs increase the friction between the packaging bags, thereby improving the stability of the packaging bags when opening them, and also playing a certain buffering role in the process of opening the bag opening, reducing damage to the packaging bags. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the overall device in this utility model;

[0024] Figure 2 This is a three-dimensional structural diagram of the bag-supporting mechanism in this utility model;

[0025] Figure 3 This is a front-view three-dimensional cross-sectional view of the movable headgear and connecting cap in this utility model;

[0026] Figure 4 This is a three-dimensional structural diagram of the disassembled auxiliary components in this utility model.

[0027] Legend:

[0028] 1. Mounting rod; 2. Robotic arm A; 3. Robotic arm B; 4. Transmission rod; 51. Cylinder; 52. Movable head cap; 53. Compression spring; 54. Connecting cap; 55. Pin; 6. Micro-motion detection switch; 71. Housing; 72. Extrusion plate; 73. Return spring; 74. Mounting plate; 8. Side plate. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Reference Figure 1 - Figure 3This utility model provides an embodiment of an auxiliary mechanism for bag opening in packaging equipment, including a mounting rod 1 for mounting robotic arms A2 and B3. Robotic arm A2 is rotatably connected to the outer side of the mounting rod 1, and robotic arm B3 is rotatably connected to the right side of the mounting rod 1 near robotic arm A2. Driven by the bag opening mechanism, robotic arms A2 and B3 can open the packaging bag. Simultaneously, the upper part of robotic arm A2 is higher than that of robotic arm B3. The upper part of robotic arm A2 and robotic arm B3 are rotatably connected via a transmission rod 4. One end of the transmission rod 4 is located on the upper part of robotic arm A2, and the other end is located on the connection between robotic arm B3 and the mounting rod 1. On the lower side of the contact, the transmission rod 4 is used to drive the robotic arm A2 and the robotic arm B3 to move synchronously in opposite directions. The outer side of the robotic arm A2 and the robotic arm B3 is provided with a bag-supporting mechanism. The bag-supporting mechanism includes a connecting component and a supporting component. The connecting component includes a cylinder 51. The cylinder 51 is horizontally set. Through the drive of its output shaft, the movable head cap 52 and the connecting cap 54 are moved, thereby pushing the robotic arm A2 and the robotic arm B3 to perform the opening operation. The left side of the cylinder 51 is set inside the robotic arm A2. The movable head cap 52 is fixedly connected to the right side of the output shaft of the cylinder 51. Under the push of the output shaft of the cylinder 51, the connecting cap 54 is pushed to move by the compression spring 53.

[0031] Furthermore, the right side of the movable head cap 52 is designed as a long cylindrical shape, and a connecting cap 54 is provided on the right side of the movable head cap 52 for connecting the robot arm B3 and the movable head cap 52, providing a certain amount of movement space for the movable head cap 52, so that the long cylindrical shape on the right side of the movable head cap 52 can detach from or press against the micro-motion detection switch 6. The right side of the connecting cap 54 is rotatably connected to the inner wall of the robot arm B3. A compression spring 53 is sleeved on the outer side of the right part of the movable head cap 52, with one side of the compression spring 53 attached to the outer side of the movable head cap 52 and the other end of the compression spring 53 attached to the connecting cap. On the left side of 54, the sliding resistance component between the movable cap 52 and the connecting cap 54, through its own elastic force, can drive the connecting cap 54 to move without squeezing the micro-motion detection switch 6, thereby enabling the robotic arms A2 and B3 to perform the opening operation. At the same time, when the robotic arms A2 and B3 open the packaging bag, the resistance encountered by the robotic arms A2 and B3 causes the compression spring 53 to be compressed, allowing the movable cap 52 and connecting cap 54 to slide and triggering the micro-motion detection switch 6.

[0032] Reference Figure 2 and Figure 3Both the movable headcap 52 and the connecting cap 54 have through holes at their upper parts. A pin 55 is installed on the inner wall of each hole to connect the movable headcap 52 and the connecting cap 54, preventing them from separating. The outer side of the pin 55 slides left and right on the inner wall of the hole. The width of the hole is wider than the pin 55, so that while connecting the movable headcap 52 and the connecting cap 54, the pin 55 does not obstruct their relative sliding. The connecting cap 54 has a groove on its front side and a slot on its left inner wall for the movable headcap 52 to slide. The space is provided so that the right side of the movable head cap 52 slides on the inner wall of the slot. The slot is connected to the groove. A micro-motion detection switch 6 is provided on the inner wall of the groove. The micro-motion detection switch 6 is triggered by the elongated column on the right side of the movable head cap 52 to provide signal feedback through mechanical touch, which improves the detection accuracy and reduces the risk of bagging failure. The support component includes a side plate 8, which is inclined and used to open the bag opening. The side plate 8 is fixedly connected to the lower part of the front and rear sides of the robot A2. There are multiple sets of side plates 8. Another set of side plates 8 is set on the lower part of the front and rear sides of the robot B3.

[0033] Reference Figure 1 and Figure 4 The outer side of the robotic arm B3 is equipped with auxiliary components, and there are multiple sets of these components, which are respectively installed on the robotic arms A2 and B3. The auxiliary components include a housing 71, which is fixedly connected to the inner wall of the right side of the robotic arm B3. A mounting plate 74 is fixedly connected to the right side of the robotic arm B3 near the housing 71. It can be installed by bolts and is used to limit the installation of the extrusion plate 72, while also facilitating disassembly and maintenance. The extrusion plate 72 is slidably connected to the inner wall of the housing 71, and there are multiple sets of these components. The outer side of the extrusion plate 72 is equipped with anti-slip strips. When the packaging bag opening is opened by the anti-slip strips made of rubber, the friction can be increased, thereby improving the opening effect.

[0034] Furthermore, the right side of the extrusion plate 72 slides through the inner wall of the mounting plate 74. The extrusion plate 72 is elastically connected to the outer shell 71 by a return spring 73. One end of the return spring 73 is fixedly connected to the inner wall of the outer shell 71, and the other end of the return spring 73 is attached to the left side of the extrusion plate 72. This provides an inward elastic force to the extrusion plate 72, so that the extrusion plate 72 can automatically reset and return to its initial position after the external force is removed or disappears. It also plays a certain buffering role during the process of opening the bag opening, reducing damage to the packaging bag.

[0035] Working principle: When in use, after receiving the bag-opening command, cylinder 51 starts to work, and its output shaft drives the connected movable cap 52 to move. The movable cap 52 squeezes the compression spring 53. The compression spring 53, relying on its own elastic force, begins to push the connecting cap 54 to move to the right. At this time, the long column on the right side of the movable cap 52 has not yet squeezed the micro-motion detection switch 6. As the connecting cap 54 moves to the right, it will drive the robot arm B3 to rotate around its connection point with the mounting rod 1.

[0036] Meanwhile, since robotic arm A2 and robotic arm B3 are rotatably connected through transmission rod 4, robotic arm A2 and robotic arm B3 will rotate synchronously in opposite directions according to the transmission action of transmission rod 4. That is, robotic arm A2 rotates in opposite directions around its connection point with mounting rod 1. In this way, robotic arm A2 and robotic arm B3 open the opening of the packaging bag.

[0037] Meanwhile, when the robotic arm B3 rotates to open the bag opening, the extrusion plate 72 will slide inward along the inner wall of the outer shell 71 due to the reaction force of the packaging bag. The return spring 73 will be squeezed when the extrusion plate 72 slides inward. The elastic force generated by it plays a buffering role, making the opening action more stable and reducing damage to the packaging bag. At the same time, the rubber anti-slip strip will contact the bag opening and generate friction. This friction helps to grip the bag opening more firmly, better open the bag opening, and improve the opening effect.

[0038] As robotic arms A2 and B3 continue to expand the packaging bag, when the bag is expanded to the appropriate size, meaning that the resistance from the bag reaches a certain level, this resistance is transmitted to the compression spring 53, causing it to be further compressed. Consequently, the movable head cap 52 and the connecting cap 54 begin to slide relative to each other. At this point, the elongated column on the right side of the movable head cap 52 slides to the micro-motion detection switch 6. After being mechanically activated, the micro-motion detection switch 6 sends a signal to the control system, indicating that the packaging bag has been expanded to the correct position. This achieves accurate detection of the bag expansion status, helping to promptly understand the bag expansion situation and reduce the risk of bagging failure.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An auxiliary mechanism for supporting bags in packaging equipment, comprising a mounting rod (1), characterized in that: A robotic arm A (2) is rotatably connected to the outside of the mounting rod (1). A robotic arm B (3) is rotatably connected to the right side of the mounting rod (1) near the robotic arm A (2). The upper part of the robotic arm A (2) is rotatably connected to the robotic arm B (3) through a transmission rod (4). A bag-supporting mechanism is provided on the outside of the robotic arm A (2) and the robotic arm B (3). The bag-supporting mechanism includes a connecting component and a supporting component. The connecting component includes a cylinder (51). The left side of the cylinder (51) is located inside the robotic arm A (2). A movable head cap (52) is fixedly connected to the right side of the output shaft of the cylinder (51). A connecting cap (54) is provided on the right side of the movable head cap (52). The right side of the connecting cap (54) is rotatably connected to the inner wall of the robot arm B (3). A compression spring (53) is sleeved on the outer side of the right part of the movable head cap (52). Insertion holes are provided through the upper parts of the movable head cap (52) and the connecting cap (54). A pin (55) is provided on the inner wall of the insertion hole. A groove is provided on the front side of the connecting cap (54). The inner wall of the groove is... A micro-motion detection switch (6) is provided; an auxiliary component is provided on the outside of the robot arm B (3), the auxiliary component includes a shell (71), the shell (71) is fixedly connected to the inner wall of the right side of the robot arm B (3), a mounting plate (74) is fixedly connected to the right side of the robot arm B (3) near the shell (71), and a pressing plate (72) is slidably connected to the inner wall of the shell (71), and multiple sets are provided. The right side of the pressing plate (72) slides through the inner wall of the mounting plate (74), and the pressing plate (72) is connected to the outer side of the robot arm B (3). The shell (71) is elastically connected by a return spring (73). One end of the return spring (73) is fixedly connected to the inner wall of the shell (71), and the other end of the return spring (73) is attached to the left side of the extrusion plate (72). An anti-slip strip is provided on the outer side of the extrusion plate (72). The support assembly includes a side plate (8). The side plate (8) is fixedly connected to the lower part of the front and rear sides of the robot A (2). Multiple sets of side plates (8) are provided. Another set of side plates (8) is provided on the lower part of the front and rear sides of the robot B (3).

2. The auxiliary mechanism for bag support in packaging equipment according to claim 1, characterized in that: The pin (55) slides left and right on the outer side of the inner wall of the socket.

3. The auxiliary mechanism for bag support in packaging equipment according to claim 1, characterized in that: One side of the compression spring (53) is attached to the outside of the movable head cap (52), and the other end of the compression spring (53) is attached to the left side of the connecting cap (54).

4. The auxiliary mechanism for bag support in packaging equipment according to claim 1, characterized in that: The right side of the active headgear (52) is designed as a long column.

5. The auxiliary mechanism for bag support in packaging equipment according to claim 1, characterized in that: The connecting cap (54) has a slot on its left inner wall, and the movable head cap (52) slides on the right side of the slot inner wall. The slot is connected to the groove.

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