Pressing device of pillow type packaging machine

Abstract

The utility model provides a material pressing device of a pillow type packaging machine, which comprises a fixed rack which is fixedly arranged, the fixed rack is provided with an adjusting frame which moves along the vertical direction, the adjusting frame is movably provided with a floating frame, the floating frame is fixedly provided with a material pressing mechanism, the material pressing mechanism is provided with a roll shaft, and the roll shaft is provided with a material pressing groove. A driving mechanism for driving the roll shaft to rotate is mounted on the adjusting frame; the height of the material pressing mechanism is adjusted by arranging the automatically-controlled adjusting frame and the follow-up floating frame, on one hand, the whole material pressing height can be automatically and rapidly adjusted, on the other hand, the material pressing mechanism can adjust the height in a floating mode within a small range, adaptive follow-up adjustment is conducted according to the material height, the extrusion and exhaust effect of materials is improved, and the production efficiency is improved. And the packaging quality of the packaging machine is ensured.

Description

Technical Field

[0001] This utility model relates to the field of automated packaging, and in particular to a pressing device for a pillow packaging machine. Background Technology

[0002] In existing technologies, pillow-type packaging machines are widely used in the commodity packaging field, requiring material compression during the packaging process. In current compression operations, the compression adjustment device is mostly manually adjusted by handwheels, often resulting in inaccurate compression height settings. This makes the adjustment process cumbersome, time-consuming, and labor-intensive. Furthermore, because the actual height of the material varies, once the compression device is set, the compression height is fixed. If the material height becomes abnormally high, it may lead to excessive compression and packaging damage. Utility Model Content

[0003] The technical problem this utility model aims to solve is that the existing pressing devices of packaging machines are cumbersome to adjust and inefficient. Moreover, most existing pressing devices are set at a fixed height, which can easily lead to material breakage and squeezing failures during the pressing process. This utility model provides a pressing device for a pillow-type packaging machine to solve the above problems.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a pressing device for a pillow packaging machine, including a fixed frame, an adjusting frame that moves in the vertical direction on the fixed frame, a floating frame that is movably installed on the adjusting frame, a pressing mechanism that is fixedly installed on the floating frame, a roller on the pressing mechanism, and a driving mechanism that drives the roller to rotate on the adjusting frame.

[0005] Furthermore: the fixed frame is provided with an adjustment mechanism, and the adjustment frame is mounted on the fixed frame through the adjustment mechanism. The adjustment mechanism includes a first guide rod, a first slider, a lead screw, a nut slider, and a servo motor. The first guide rod is vertically fixed on the fixed frame, the first slider is slidably mounted on the first guide rod, the adjustment frame is fixedly connected to the first slider, the lead screw is set parallel to the guide rod and rotatably mounted on the fixed frame, the nut slider is mounted on the lead screw and fixedly connected to the adjustment frame, and the servo motor drives the lead screw to rotate, thereby driving the adjustment frame to move up and down along the axis of the lead screw.

[0006] Furthermore: the adjusting frame is provided with a floating mechanism, the floating frame is mounted on the adjusting frame through the floating mechanism, the floating mechanism includes a second guide rod, a second slider and a spring, the second guide rod is vertically fixed on the adjusting frame, the second slider is slidably mounted on the second guide rod, and the floating frame is fixedly connected to the second slider; the bottom of the floating frame is provided with a spring base, the spring base is provided with a spring guide rod, the spring is sleeved on the spring guide rod and pushes the floating frame upward.

[0007] Further: The drive mechanism includes a drive gear, a double-ended gear, a transition pin, a double-ended bushing, an output gear, and a flange bushing. The drive gear is mounted on the output shaft of the roller drive motor. One end of the flange bushing is sleeved on the outer circumference of the output shaft of the roller drive motor, and the other end is fixedly connected to one end of the transition pin. The double-ended gear is rotatably mounted on the transition pin. One end of the double-ended bushing is sleeved on the outer circumference of the transition pin, and the other end is sleeved on the outer circumference of the roller. The output gear is mounted on the roller. One end of the double-ended gear meshes with the drive gear, and the other end meshes with the output gear. The drive gear, the double-ended gear, and the output gear have the same module.

[0008] The beneficial effects of this utility model are that the pressing device of the pillow packaging machine of this utility model adjusts the height of the pressing mechanism by setting an automatically controlled adjusting frame and a following floating frame. On the one hand, it can achieve automatic and rapid adjustment of the overall pressing height. On the other hand, the pressing mechanism can float and adjust its height within a small range, making adaptive adjustments according to the height of the material, which improves the material extrusion and degassing effect and ensures the packaging quality of the packaging machine. Attached Figure Description

[0009] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0010] Figure 1 This is a schematic diagram of the pressing device of a pillow-type packaging machine according to the present invention;

[0011] Figure 2 yes Figure 1 Main view of the structure for installing the middle adjustment frame and floating frame (the material pressing mechanism is omitted);

[0012] Figure 3 yes Figure 1 Left view of the structural diagram of the installation of the middle adjustment frame and the floating frame (the material pressing mechanism is omitted);

[0013] Figure 4 yes Figure 1 A three-dimensional schematic diagram of the installation structure of the middle adjustment frame and the floating frame (the material pressing mechanism is omitted).

[0014] Figure 5 This is a partial structural diagram of the drive mechanism.

[0015] In the diagram: 1. Fixed frame; 2. Adjusting frame; 3. Floating frame; 4. Pressing mechanism; 5. First guide rod; 6. First slider; 7. Lead screw; 8. Nut slider; 9. Servo motor; 10. Second guide rod; 11. Second slider; 12. Spring; 13. Spring base; 14. Spring guide rod; 15. Drive mechanism; 16. Drive gear; 17. Double-ended gear; 18. Transition pin; 19. Double-ended bushing; 20. Output gear; 21. Flange bushing. Detailed Implementation

[0016] The embodiments of this utility model are described in detail below, examples of which 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. Rather, the embodiments of this utility model include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0017] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0018] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0019] Any process or method described in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process, and the scope of the preferred embodiments of the present invention includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order according to the functions involved, as should be understood by those skilled in the art to which embodiments of the present invention pertain.

[0020] like Figures 1-5 As shown, this utility model provides a pressing device for a pillow packaging machine, including a fixed frame 1, an adjusting frame 2 that moves in the vertical direction on the fixed frame 1, a floating frame 3 that is movably mounted on the adjusting frame 2, a pressing mechanism 4 that is fixedly mounted on the floating frame 3, a roller shaft on the pressing mechanism 4, and a driving mechanism 15 that drives the roller shaft to rotate on the adjusting frame 2.

[0021] The pressing device is often used in the material pressing and venting process of pillow packaging machines. The pressing mechanism 4 presses the material on the upper end. The pressing mechanism is often designed in the form of a conveyor belt or brush belt. This can provide a flat downward pressing operation on the material on the one hand, and the conveyor belt-like structure provides driving force. Through the action of friction, the material is pressed and pushed backward, realizing the orderly squeezing and venting operation of the material from front to back. The power source for the transmission work of the pressing mechanism is provided by the roller.

[0022] The technical solution of this application allows the height of the adjusting frame 2 to be adjusted on the fixed frame 1, thus accommodating materials of different heights and specifications. Customized adjustments can be made for each material. After adjusting the height of a certain type of material, the height of the adjusting frame 2 will be fixed. During the pressing process, the pressing mechanism 4 may encounter situations where the material heights are inconsistent or differ. The floating frame 3, located on the adjusting frame 2, can adjust dynamically according to the actual height of the material contacted by the pressing mechanism 4, resulting in tighter material compression and improved pressing effect of the pressing mechanism 4.

[0023] The drive mechanism 15 provides transmission power to the roller shaft, ensuring the material conveying function of the pressing mechanism 4 during the pressing process.

[0024] The fixed frame 1 is provided with an adjustment mechanism. The adjustment frame 2 is installed on the fixed frame 1 through the adjustment mechanism. The adjustment mechanism includes a first guide rod 5, a first slider 6, a lead screw 7, a nut slider 8, and a servo motor 9. The first guide rod 5 is vertically fixed on the fixed frame 1. The first slider 6 is slidably installed on the first guide rod 5. The adjustment frame 2 is fixedly connected to the first slider 6. The lead screw 7 is set parallel to the guide rod and rotatably installed on the fixed frame 1. The nut slider 8 is installed on the lead screw 7 and fixedly connected to the adjustment frame 2. The servo motor 9 drives the lead screw 7 to rotate, thereby driving the adjustment frame 2 to move up and down along the axis of the lead screw 7.

[0025] The adjustment mechanism on the fixed frame 1 is mainly used to adjust the height of the adjustment frame 2. Guided by the first slider 6, the adjustment frame 2 can slide up and down along the first guide rod 5, which plays a guiding role in the vertical direction. The servo motor 9 drives the lead screw 7 to rotate, which in turn drives the nut slider 8 to push the adjustment frame 2 up and down along the axis of the lead screw 7. By controlling the rotation of the servo motor 9, the position and height of the adjustment frame 2 can be controlled, allowing for precise adjustment for materials of different specifications.

[0026] The adjusting frame 2 is provided with a floating mechanism, and the floating frame 3 is installed on the adjusting frame 2 through the floating mechanism. The floating mechanism includes a second guide rod 10, a second slider 11 and a spring 12. The second guide rod 10 is vertically fixed on the adjusting frame 2, and the second slider 11 is slidably installed on the second guide rod 10. The floating frame 3 is fixedly connected to the second slider 11. The bottom of the floating frame 3 is provided with a spring base 13, and a spring guide rod 14 is provided on the spring base 13. The spring 12 is sleeved on the spring guide rod 14 and pushes the floating frame 3 upward.

[0027] Once the adjusting frame 2 is fixed, the height of the floating frame 3 can be adaptively adjusted using the floating mechanism. Guided by the second slider 11, the floating frame 3 slides up and down along the second guide rod 10. The spring 12, mounted on the spring base 13, pushes the floating frame 3 upwards to overcome its own weight. When the pressing mechanism 4 encounters uneven material heights, the material provides upward support to the pressing mechanism 4. When the upward support force exceeds the weight of the pressing mechanism 4, it pushes the pressing mechanism 4 upwards; when the support force weakens, it slides downwards. The floating frame 3 will move accordingly with the material height. The spring 12 provides an initial upward support force to the floating frame 3, allowing it to be in a buffered, vertically adjustable state, facilitating a more comfortable pressing action on the material below.

[0028] The device employs a servo motor 9 and a lead screw 7. Through the encoder in the servo motor 9, the height of the pressing mechanism 4 can be accurately and quickly adjusted according to the actual material height. Simultaneously, once the height is fixed, vertical height adjustment is achieved through the flexible transmission of the gear assembly in the drive mechanism 15. When materials of varying heights enter the device, the pressing mechanism can adjust accordingly, preventing damage to the packaging bag.

[0029] The drive mechanism 15 includes a drive gear 16, a double-ended gear 17, a transition pin 18, a double-ended bushing 19, an output gear 20, and a flange bushing 21. The drive gear 16 is mounted on the output shaft of the roller drive motor. One end of the flange bushing 21 is sleeved on the outer circumference of the output shaft of the roller drive motor, and the other end is fixedly connected to one end of the transition pin 18. The double-ended gear 17 is rotatably mounted on the transition pin 18. One end of the double-ended bushing 19 is sleeved on the outer circumference of the transition pin 18, and the other end is sleeved on the outer circumference of the roller. The output gear 20 is mounted on the roller. One end of the double-ended gear 17 meshes with the drive gear 16, and the other end meshes with the output gear 20. The drive gear 16, the double-ended gear 17, and the output gear 20 have the same module.

[0030] Since the drive mechanism 15 is mounted on the adjustment frame 2, and the pressing mechanism 4 is mounted on the floating frame 3, and the floating frame 3 has a vertical floating motion relative to the adjustment frame 2, the drive mechanism 15 needs to provide power to the pressing mechanism 4, which can move vertically.

[0031] In this application, the drive mechanism 15, supported by the flange bushing 21, allows the transition pin 18 and the double-ended gear 17 mounted above it to rotate around the drive gear 16, maintaining meshing between the drive gear 16 and the double-ended gear 17 during rotation. Simultaneously, supported by the double-ended bushing 19, the roller shaft and the output gear 20 mounted above it can also rotate around the double-ended gear 17, maintaining meshing between the double-ended gear 17 and the output gear 20 during rotation. Since the drive gear 16, the double-ended gear 17, and the output gear 20 always maintain a meshing relationship, and their gear modules are all similar... Therefore, synchronous transmission can be achieved, transmitting the power of the roller drive motor to the roller end. At the same time, since the double-headed gear 17 can rotate around the driving gear 16 and the output gear 20 can rotate around the double-headed gear 17, the relative position of the roller and the output shaft of the roller drive motor can be variable. When the floating frame 3 is floating at a certain height, it can adaptively adjust its relative position through these rotations. While ensuring power transmission, it can flexibly adjust the height of the output and input ends, meeting the operational requirements of transmitting power through gear meshing under small-distance floating motion.

[0032] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0033] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A pressing device for a pillow-type packaging machine, characterized in that: The device includes a fixed frame (1) that is fixedly installed. An adjusting frame (2) that moves in the vertical direction is provided on the fixed frame (1). A floating frame (3) is movably installed on the adjusting frame (2). A pressing mechanism (4) is fixedly installed on the floating frame (3). The pressing mechanism (4) has a roller shaft. A driving mechanism (15) that drives the roller shaft to rotate is installed on the adjusting frame (2).

2. The pressing device of a pillow-type packaging machine as described in claim 1, characterized in that: The fixed frame (1) is provided with an adjustment mechanism. The adjustment frame (2) is installed on the fixed frame (1) through the adjustment mechanism. The adjustment mechanism includes a first guide rod (5), a first slider (6), a lead screw (7), a nut slider (8), and a servo motor (9). The first guide rod (5) is vertically fixed on the fixed frame (1). The first slider (6) is slidably installed on the first guide rod (5). The adjustment frame (2) is fixedly connected to the first slider (6). The lead screw (7) is set parallel to the guide rod and rotatably installed on the fixed frame (1). The nut slider (8) is installed on the lead screw (7) and fixedly connected to the adjustment frame (2). The servo motor (9) drives the lead screw (7) to rotate, thereby driving the adjustment frame (2) to move up and down along the axis of the lead screw (7).

3. The pressing device of a pillow-type packaging machine as described in claim 2, characterized in that: A floating mechanism is provided on the adjusting frame (2). The floating frame (3) is installed on the adjusting frame (2) through the floating mechanism. The floating mechanism includes a second guide rod (10), a second slider (11), and a spring (12). The second guide rod (10) is vertically fixed on the adjusting frame (2). The second slider (11) is slidably installed on the second guide rod (10). The floating frame (3) is fixedly connected to the second slider (11). A spring base (13) is provided at the bottom of the floating frame (3). A spring guide rod (14) is provided on the spring base (13). The spring (12) is sleeved on the spring guide rod (14) and pushes the floating frame (3) upward.

4. The pressing device of a pillow-type packaging machine as described in claim 3, characterized in that: The drive mechanism (15) includes a drive gear (16), a double-ended gear (17), a transition pin (18), a double-ended bushing (19), an output gear (20), and a flange bushing (21). The drive gear (16) is mounted on the output shaft of the roller drive motor. One end of the flange bushing (21) is sleeved on the outer circumference of the output shaft of the roller drive motor, and the other end is fixedly connected to one end of the transition pin (18). The double-ended gear (17) is rotatably mounted on the transition pin (18). One end of the double-ended bushing (19) is sleeved on the outer circumference of the transition pin (18), and the other end is sleeved on the outer circumference of the roller. The output gear (20) is mounted on the roller. One end of the double-ended gear (17) meshes with the drive gear (16), and the other end meshes with the output gear (20). The drive gear (16), the double-ended gear (17), and the output gear (20) have the same module.

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