Adjustable transfer platform

Abstract

The application provides an adjustable transfer platform, which comprises a mounting plate, a baffle and a limiting component; the mounting plate is used for being connected with the end of a mechanical arm and being in a horizontal state, the mounting plate is provided with a translation member which is slidingly connected with the mounting plate in the front-rear direction, and the translation member is drivingly connected with a linear driving member; the baffle is arranged on the lower side of the mounting plate and is connected with the translation member through a distance adjusting structure, so that the baffle can move relative to the translation member in the up-down direction; the lower end of the baffle is provided with a plug-in part which has the ability to be inserted into the bottom or middle part of a packaging bag stack; the limiting component is arranged on the front end of the mounting plate and is used for being connected with the top of the packaging bag stack, so as to be matched with the material receiving table or the plug-in part to clamp and limit the packaging bag, thereby taking out and placing the packaging bag stack with different thicknesses. The adjustable transfer platform provided by the application can take and place a part of the packaging bags in the stacked state, so as to meet the stacking requirements of the filling production line for users.

Description

Technical Field

[0001] This application belongs to the field of product transfer technology, specifically relating to an adjustable transfer platform. Background Technology

[0002] Finished packaging bags refer to empty packaging bags that have completed their own bag-making and printing processes but have not yet been filled with contents. Their materials include plastic, aluminum foil, and high-grade paper. To connect the two core processes of bag making and filling, these packaging bags need to be stacked on the receiving table and transferred to the filling production line by a transfer device.

[0003] Common transfer equipment in the prior art includes a robotic arm and a transfer platform, with the platform installed at the end of the robotic arm. When transferring packaging bags, the robotic arm controls the transfer platform to move to the underside of the packaging bag, and then moves it up to contact the bottom surface of the packaging bag, thereby supporting the stacked packaging bags and enabling them to be transferred.

[0004] The inventors discovered that existing transfer platforms cannot be inserted into the middle of the packaging bag stack, which means that the packaging bags can only be transferred to the filling production line according to the stacking state of the receiving platform. This has poor adaptability and cannot meet the special needs of users. Utility Model Content

[0005] This application provides an adjustable transfer platform, designed to pick up and place a portion of the packaging bags during the transfer of stacked packaging bags, in order to meet the stacking needs of the filling production line.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0007] An adjustable transfer platform is provided for mounting at the end effector of a robotic arm, comprising:

[0008] A mounting plate is used to connect to a robotic arm and is in a horizontal position. The length direction of the mounting plate is defined as the front-back direction. The mounting plate has a translational member, which is slidably connected to the mounting plate in the front-back direction. The translational member is also connected to a linear drive component.

[0009] A baffle, disposed on the underside of the mounting plate and connected to the translational member via an adjustable structure, allows the baffle to move relative to the translational member in a vertical direction; furthermore, the lower end of the baffle has a horizontally extending insert for insertion into the bottom or middle of a stack of packaging bags; and

[0010] A limiting component is disposed at the front end of the mounting plate and is used to connect with the top of the stack of packaging bags to cooperate with the receiving platform or the plug-in component to clamp and limit the packaging bags.

[0011] In one possible implementation, the linear drive component includes:

[0012] The first nut is fixedly mounted on the translational member, and its axial direction is parallel to the front-rear direction; and

[0013] A transmission screw is rotatably mounted on the mounting plate in the front-back direction and is threadedly connected to the first nut; the transmission screw is driven by a first rotary motor, which drives the transmission screw to rotate so that the first nut drives the translational member to move in the front-back direction.

[0014] In one possible implementation, the translational member has a receiving cavity that extends through the front-rear direction; the first nut is fitted into the receiving cavity, and both ends of the receiving cavity are fitted with caps, and the caps have reserved holes suitable for the transmission screw to pass through.

[0015] In one possible implementation, the translational member is disposed on the upper side of the mounting plate; the mounting plate has a strip-shaped hole that extends through the vertical direction and extends in the front-back direction.

[0016] The baffle has an upwardly extending connecting arm; the connecting arm is inserted into the strip hole and is slidably connected to the translational member in the vertical direction.

[0017] In one possible implementation, the connecting arm has a groove extending in the vertical direction, and the translational member has a protrusion that slides into the groove.

[0018] In one possible implementation, the adjustment structure includes:

[0019] A first linear cylinder is fixedly mounted on the baffle, and its power output axis is parallel to the vertical direction; and

[0020] The transmission plate is slidably disposed on the lower side of the mounting plate in the front-to-back direction and is connected to the power output end of the first linear cylinder.

[0021] In one possible implementation, the limiting component includes:

[0022] Two lifting seats are arranged side-by-side on the underside of the mounting plate in a left-right direction, and each lifting seat is slidably connected to the mounting plate in a vertical direction; and

[0023] Two pressure plates are respectively set at the bottom ends of the two lifting seats;

[0024] The mounting plate has a synchronous drive component that is connected to the two lifting seats. The synchronous drive component is used to drive the two lifting seats to move relative to the mounting plate in the vertical direction so that the two pressure plates simultaneously contact or separate from the top of the packaging bag stack.

[0025] In one possible implementation, the synchronization drive component includes:

[0026] Two sliders are arranged side by side on the mounting plate in the left-right direction and are slidably connected to the mounting plate in the left-right direction; each slider has a second nut fixedly connected to it, and the axis of the second nut is parallel to the left-right direction;

[0027] Two transmission arms are respectively hinged to the two sliders in the front-to-back direction, and the swing ends of the two transmission arms are respectively hinged to the two lifting seats in the front-to-back direction; and

[0028] A bidirectional screw is rotatably mounted on the mounting plate in the left-right direction. It has two threaded portions with opposite thread directions, and the two threaded portions are respectively threadedly connected to the two second nuts.

[0029] The bidirectional screw drive is connected to a rotation drive component for rotating it; when the rotation drive component drives the bidirectional screw to rotate, the two second nuts respectively drive the two sliders to move, so that the two sliders move towards each other or away from each other; at the same time, the two transmission arms swing to drive the two lifting seats to move synchronously in the up and down direction.

[0030] In one possible implementation, the rotation drive component includes:

[0031] The second rotating motor is fixedly mounted on the mounting plate, its power output axis is parallel to the left-right direction, and its power output axis is coaxially connected to a drive gear; and

[0032] The driven gear is coaxially connected to the bidirectional screw and threadedly connected to the driving gear.

[0033] In one possible implementation, the lifting base has a positioning hole extending in the horizontal direction, and the lifting base further includes:

[0034] The fixed pile is fixedly installed on the mounting plate, and its axis is parallel to the vertical direction;

[0035] A sliding rod is slidably connected to the fixed pile in the up-down direction, and its lower end has a positioning arm that extends radially outward and is inserted into the positioning hole;

[0036] The lifting seat also has an outer alignment hole that extends through the positioning hole in a direction perpendicular to the axial direction of the positioning hole, and the outer alignment hole communicates with the positioning hole; the positioning arm has a plurality of inner alignment holes spaced apart along its length, and each inner alignment hole is adapted to communicate with the outer alignment hole.

[0037] Furthermore, the lifting platform also includes:

[0038] Connecting bolts are inserted into the interconnected outer and inner alignment holes; and

[0039] A locking nut is threaded to the connecting bolt and is adapted to engage with the head of the connecting bolt to abut against both sides of the lifting seat.

[0040] In this embodiment, the mounting plate serves as the base and is connected to the robotic arm; the translational component, driven by the linear drive component, can move the baffle connected to it via the adjustable distance structure back and forth; the baffle can move up and down independently, so that the connector at its lower end reaches the predetermined position; finally, the limiting component at the front end of the mounting plate cooperates with the adjusted connector (or receiving platform) to jointly complete the clamping and limiting of the packaging bag stack.

[0041] In the aforementioned components, the forward and backward sliding of the translational component and the up and down movement of the baffle together determine the final position of the connector in space, enabling it to be accurately inserted into the middle or bottom of the stack of packaging bags; while the limiting component cooperates at the top to form a stable clamping force.

[0042] The adjustable transfer platform provided in this embodiment, compared with the prior art, realizes the picking and placing of any part of the stacked packaging bags through the combination of flexibly adjustable plug-in parts and limiting components. This allows for the active change of the stacking state of the packaging bags to better meet the special stacking requirements of the filling production line, thereby improving the versatility and practical value of the equipment. Attached Figure Description

[0043] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0044] Figure 1 One of the three-dimensional structural schematic diagrams of the adjustable transfer platform provided in the embodiments of this application;

[0045] Figure 2 for Figure 1 A magnified view of a portion of the middle circle A;

[0046] Figure 3 A second three-dimensional structural schematic diagram of the adjustable transfer platform provided in the embodiments of this application;

[0047] Figure 4 This is a partially enlarged schematic diagram of the baffle and connector used in the embodiments of this application under an explosive state;

[0048] Figure 5 This is a three-dimensional structural diagram of the baffle and adjustment structure used in the embodiments of this application in a combined state;

[0049] Figure 6 This is a three-dimensional structural diagram of the connector used in the embodiments of this application;

[0050] Figure 7 This is a three-dimensional structural diagram of the translational and linear drive components used in the embodiments of this application under an explosive state;

[0051] Figure 8 This is a cross-sectional structural schematic diagram of the translational component used in the embodiments of this application;

[0052] Figure 9 This is a three-dimensional structural diagram of the rotation drive component used in the embodiments of this application;

[0053] Figure 10 This is a three-dimensional structural diagram of the synchronous drive component used in the embodiments of this application;

[0054] Figure 11 This is a three-dimensional structural diagram of the limiting component and sliding rod used in the embodiments of this application under an explosive state;

[0055] Figure 12 This is a partially enlarged cross-sectional view of the mounting plate and limiting components used in the embodiments of this application.

[0056] Explanation of reference numerals in the attached drawings: 1. Mounting plate; 11. Strip hole; 12. Fixing post; 13. Sliding rod; 14. Positioning arm; 141. Inner alignment hole; 2. Baffle; 21. Connecting arm; 211. Slide groove; 3. Limiting assembly; 31. Lifting seat; 311. Positioning hole; 312. Outer alignment hole; 313. Connecting bolt; 314. Locking nut; 32. Pressure plate; 4. Translational component; 41. Receiving cavity; 42. Cover; 421. Reserved space. 43. Hole; 5. Protrusion; 6. Linear drive component; 7. First nut; 8. Transmission screw; 9. First rotary motor; 10. Adjustable pitch structure; 11. First linear cylinder; 12. Transmission plate; 13. Connector; 14. Synchronous drive component; 15. Slider; 16. Second nut; 17. Transmission arm; 18. Bidirectional screw; 19. Rotation drive component; 10. Second rotary motor; 11. Drive gear; 12. Driven gear. Detailed Implementation

[0057] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0058] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0059] It should be understood that the terms "length", "width", "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 application 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 application.

[0060] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0061] Please refer to the following: Figures 1 to 12 The adjustable transfer platform provided in this application will now be described. The adjustable transfer platform proposed in this application is used for installation at the end of a robotic arm and includes a mounting plate 1, a baffle 2, and a limiting component 3.

[0062] Mounting plate 1 is used to connect to the robotic arm, and after installation, mounting plate 1 is in a horizontal state. In this embodiment, for ease of description, the length direction of mounting plate 1 is defined as the front-back direction; correspondingly, the width direction of mounting plate 1 is the left-right direction, and the thickness direction is the up-down direction. Mounting plate 1 is provided with a translational member 4, which is slidably connected to mounting plate 1 in the front-back direction, and the translational member 4 is driven by a linear drive member 5 for moving relative to mounting plate 1.

[0063] The baffle 2 is arranged below the mounting plate 1 and is connected to the translation member 4 through the adjustment structure 6. This connection allows the baffle 2 to move up and down relative to the translation member 4 to achieve vertical positioning adjustment. The lower end of the baffle 2 is provided with a forward horizontally extending plug 7, which is used to perform the insertion action. Through its unique horizontal extension structure, it can be accurately inserted into the bottom or middle position of the packaging bag stack to achieve selective picking and placing of a specific number of packaging bags.

[0064] The limiting component 3 is installed at the front end of the mounting plate 1. This limiting component 3 is used to contact the top surface of the stack of packaging bags. It works in conjunction with the receiving table or the connector 7 to achieve stable clamping and limiting of the stack of packaging bags.

[0065] In this embodiment, the mounting plate 1 serves as a base platform connected to the robotic arm. The translational component 4 moves back and forth under the drive of the linear drive component 5, and this movement synchronously displaces the baffle 2 via the adjustable structure 6. The baffle 2 itself has independent vertical adjustment capability, a design that allows its lower connector 7 to reach a predetermined working position. The limiting component 3 at the front end of the mounting plate 1 cooperates with the adjusted connector 7, together achieving reliable clamping and limiting of the stack of packaging bags.

[0066] Of the aforementioned components, the translational member 4 provides positioning in the front-to-back direction. The baffle 2 provides precise positioning in the up-and-down direction. The combined motion of these two components determines the final working position of the connector 7 in space, enabling the connector 7 to be accurately inserted into the designated location within the stack of packaging bags. The limiting component 3 provides a stable clamping force at the top of the stack of packaging bags, forming a complete clamping system.

[0067] Compared with the prior art, the adjustable transfer platform provided in this embodiment, through the combination of the flexibly adjustable connector 7 and the limiting component 3, enables the picking and placing of any part of the stacked packaging bags, thereby actively changing the stacking state of the packaging bags to better meet the special stacking requirements of the filling production line and improve the versatility and practical value of the equipment.

[0068] In some embodiments, such as Figure 7 As shown, the linear drive component 5 includes a first nut 51 and a transmission screw 52.

[0069] The first nut 51 is fixedly installed on the translational member 4, and its axis is parallel to the front-back direction.

[0070] The transmission screw 52 is supported on the mounting plate 1 by a bearing seat, and its axis is arranged in the front-to-back direction; the transmission screw 52 is threadedly engaged with the first nut 51, and its end is connected to the output shaft of the first rotating motor 521.

[0071] In actual use, the first rotating motor 521 can drive the transmission screw 52 to rotate, so as to convert the linear motion of the first nut 51 through the thread transmission, thereby driving the translational member 4 to move in the front-back direction.

[0072] In some embodiments, such as Figure 7 and Figure 8 As shown, the translational component 4 has a cavity 41 that runs through the front and rear directions; the first nut 51 is embedded in the cavity 41, and this embedded installation structure provides a stable bearing environment for the first nut 51; both ends of the cavity 41 are fitted with caps 42, and the caps 42 have a reserved hole 421 for the transmission screw 52 to pass through. This closed design can ensure the stability of the transmission system and prevent foreign objects from entering and affecting the transmission accuracy.

[0073] In some embodiments, such as Figure 1 , Figure 5 and Figure 8 As shown, the translational component 4 is arranged on the upper surface of the mounting plate 1; the mounting plate 1 has a strip hole 11 that runs through the plate body in the vertical direction, and its extension direction is consistent with the front and rear direction, providing space for the connecting components to move.

[0074] The upper part of the baffle 2 is provided with an upwardly extending connecting arm 21; the connecting arm 21 extends upward through the strip hole 11, and its upper part forms a sliding connection with the translation member 4 in the vertical direction, so that the baffle 2 can move horizontally while having the ability to adjust vertically.

[0075] In some embodiments, such as Figure 1 , Figure 5 and Figure 8 As shown, the connecting arm 21 is machined with a groove 211 extending in the vertical direction; the translation member 4 is provided with a protrusion 43 on its side, which is embedded in the groove 211 to form a guide sliding pair. This structure can ensure the stability of the baffle 2 during the vertical movement and prevent deflection.

[0076] In some embodiments, such as Figure 5 As shown, the adjustable structure 6 includes a first linear cylinder 61 and a transmission plate 62.

[0077] The first linear cylinder 61 is fixedly mounted on the baffle 2, and the movement direction of its piston rod is parallel to the up and down direction, providing vertical driving force.

[0078] The transmission plate 62 is connected to the lower surface of the mounting plate 1 through a groove and docking body cooperation structure, and it can slide in the front and back direction; the transmission plate 62 is fixedly connected to the piston rod end of the first linear cylinder 61, converting the linear motion of the first linear cylinder 61 into the precise displacement of the baffle 2.

[0079] In some embodiments, such as Figure 1 and Figure 11 As shown, the limiting component 3 includes two lifting seats 31 and two pressure plates 32.

[0080] Two lifting seats 31 are arranged side by side on the lower left and right sides of the mounting plate 1. Each lifting seat 31 is connected to the mounting plate 1 in an up-down sliding manner to ensure the stability of the lifting process.

[0081] Two pressure plates 32 are respectively installed at the bottom of the corresponding lifting seats 31, providing a contact surface with the top of the packaging bag stack.

[0082] In this embodiment, the connection between the pressure plate 32 and the lifting seat 31 adopts a detachable connection structure. Specifically, the pressure plate 32 can be detached and installed separately from the lifting seat 31 by means of bolts and nuts.

[0083] The mounting plate 1 is provided with a synchronous drive component 8, which is connected to two lifting seats 31 for driving the two lifting seats 31 to lift synchronously, ensuring that the two pressure plates 32 can simultaneously contact or leave the top of the packaging bag stack, thus ensuring a uniform distribution of clamping force.

[0084] In some embodiments, such as Figure 1 and Figure 10 As shown, the synchronous drive component 8 includes two sliders 81, two transmission arms 82, and a bidirectional screw 83.

[0085] Two sliders 81 are arranged side by side on the mounting plate 1, and their sliding relative to the mounting plate 1 in the left and right directions is achieved through a sliding connection structure with the mounting plate 1; a second nut 811 is fixedly installed on each slider 81, and its axis is parallel to the left and right directions, providing a basis for threaded transmission.

[0086] One end of each of the two transmission arms 82 is hinged to one of the two sliders 81, with the hinge axis set along the front-back direction; the other end of each of the two transmission arms 82 is hinged to one of the two lifting seats 31, converting the horizontal motion into vertical motion.

[0087] The bidirectional screw 83 is supported on the mounting plate 1 by a bearing seat, and its axis is arranged in the left-right direction. The bidirectional screw 83 is machined with two sections of threads with opposite directions, which respectively form threaded engagement with the two second nuts 811 to ensure that the two sliders 81 can move synchronously towards or away from each other.

[0088] The bidirectional screw 83 is connected to the rotary drive component 9 for transmission. When the rotary drive component 9 drives the bidirectional screw 83 to rotate, the two second nuts 811 drive the corresponding sliders 81 to move towards or away from each other, and the two transmission arms 82 swing accordingly, converting the horizontal movement of the sliders 81 into the vertical movement of the lifting seat 31, thereby achieving precise synchronous control.

[0089] In some embodiments, such as Figure 2 and Figure 9 As shown, the rotation drive component 9 includes a second rotation motor 91 and a driven gear 92.

[0090] The second rotating motor 91 is fixedly mounted on the mounting plate 1, and its output shaft axis is parallel to the left and right direction; a drive gear 911 is mounted on the output shaft to provide a drive source.

[0091] Driven gear 92 is fixedly mounted on bidirectional screw 83 and meshes with driving gear 911 to form a gear transmission pair, ensuring the smoothness and accuracy of power transmission.

[0092] In some embodiments, such as Figure 11 and Figure 12 As shown, the lifting seat 31 is provided with a positioning hole 311 that runs through the horizontal direction; the limiting component 3 also includes a fixing post 12, a sliding rod 13, a connecting bolt 313 and a locking nut 314.

[0093] The fixed pile 12 is vertically fixed to the lower surface of the mounting plate 1, and its axis is set in the vertical direction to provide a guiding foundation for the lifting and lowering movement.

[0094] The sliding rod 13 and the fixed pile 12 form an up-and-down sliding fit; the lower end of the sliding rod 13 is provided with a positioning arm 14, which extends radially outward and its end is inserted into the positioning hole 311 to form a stable connection structure.

[0095] The lifting seat 31 is machined with an external alignment hole 312, which passes through in a direction perpendicular to the axis of the positioning hole 311 and is connected to the positioning hole 311, providing a reference for height adjustment.

[0096] The positioning arm 14 has multiple inner alignment holes 141 arranged along its length. These holes are used to adjust the installation height. Each inner alignment hole 141 can be aligned with the outer alignment hole 312 to achieve rapid positioning at different working heights.

[0097] The connecting bolt 313 can be inserted into the aligned outer alignment hole 312 and inner alignment hole 141 to provide a reliable connection and fixation.

[0098] The locking nut 314 works in conjunction with the connecting bolt 313 to reliably fix the lifting seat 31 on the slide rod 13 through the synergistic action of the bolt head, ensuring structural stability during operation.

[0099] The above content is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An adjustable transfer platform for placement at the end of a robotic arm, characterized by, include: A mounting plate is used to connect to a robotic arm and is in a horizontal position. The length direction of the mounting plate is defined as the front-back direction. The mounting plate has a translational member, which is slidably connected to the mounting plate in the front-back direction. The translational member is also connected to a linear drive component. A baffle, disposed on the underside of the mounting plate and connected to the translational member via an adjustable structure, allows the baffle to move relative to the translational member in a vertical direction; furthermore, the lower end of the baffle has a horizontally extending insert for insertion into the bottom or middle of a stack of packaging bags; and A limiting component is disposed at the front end of the mounting plate and is used to connect with the top of the stack of packaging bags to cooperate with the receiving platform or the plug-in component to clamp and limit the packaging bags.

2. The adjustable transfer platform of claim 1, wherein, The linear drive component includes: The first nut is fixedly mounted on the translational member, and its axial direction is parallel to the front-rear direction; and A transmission screw is rotatably mounted on the mounting plate in the front-back direction and is threadedly connected to the first nut; the transmission screw is driven by a first rotary motor, which drives the transmission screw to rotate so that the first nut drives the translational member to move in the front-back direction.

3. The adjustable transfer platform as described in claim 2, characterized in that, The translational component has a cavity that extends through the front-rear direction; the first nut is fitted into the cavity, and both ends of the cavity are fitted with caps, and the caps have reserved holes suitable for the transmission screw to pass through.

4. The adjustable transfer platform of claim 1, wherein, The translational member is disposed on the upper side of the mounting plate; the mounting plate has a strip-shaped hole that runs through the vertical direction and extends in the front-back direction; The baffle has an upwardly extending connecting arm; the connecting arm is inserted into the strip hole and is slidably connected to the translational member in the vertical direction.

5. The adjustable transfer platform of claim 4, wherein, The connecting arm has a groove extending in the vertical direction, and the translational member has a protrusion that slides into the groove.

6. The adjustable transport platform of any one of claims 1, 4 and 5, wherein, The adjustment structure includes: A first linear cylinder is fixedly mounted on the baffle, and its power output axis is parallel to the vertical direction; and The transmission plate is slidably disposed on the lower side of the mounting plate in the front-to-back direction and is connected to the power output end of the first linear cylinder.

7. The adjustable transfer platform of claim 1, wherein, The limiting component includes: Two lifting seats are arranged side-by-side on the underside of the mounting plate in a left-right direction, and each lifting seat is slidably connected to the mounting plate in a vertical direction; and Two pressure plates are respectively set at the bottom ends of the two lifting seats; The mounting plate has a synchronous drive component that is connected to the two lifting seats. The synchronous drive component is used to drive the two lifting seats to move relative to the mounting plate in the vertical direction so that the two pressure plates simultaneously contact or separate from the top of the packaging bag stack.

8. The adjustable transfer platform of claim 7, wherein, The synchronous drive component includes: Two sliders are arranged side by side on the mounting plate in the left-right direction and are slidably connected to the mounting plate in the left-right direction; each slider has a second nut fixedly connected to it, and the axis of the second nut is parallel to the left-right direction; Two transmission arms are respectively hinged to the two sliders in the front-to-back direction, and the swing ends of the two transmission arms are respectively hinged to the two lifting seats in the front-to-back direction; and A bidirectional screw is rotatably mounted on the mounting plate in the left-right direction. It has two threaded portions with opposite thread directions, and the two threaded portions are respectively threadedly connected to the two second nuts. The bidirectional screw drive is connected to a rotation drive component for rotating it; when the rotation drive component drives the bidirectional screw to rotate, the two second nuts respectively drive the two sliders to move, so that the two sliders move towards each other or away from each other; at the same time, the two transmission arms swing to drive the two lifting seats to move synchronously in the up and down direction.

9. The adjustable transfer platform of claim 8, wherein, The rotation drive component includes: The second rotating motor is fixedly mounted on the mounting plate, its power output axis is parallel to the left-right direction, and its power output axis is coaxially connected to a drive gear; and The driven gear is coaxially connected to the bidirectional screw and threadedly connected to the driving gear.

10. The adjustable transfer platform of claim 7, wherein, The lifting base has a positioning hole that extends horizontally, and the lifting base further includes: The fixed pile is fixedly installed on the mounting plate, and its axis is parallel to the vertical direction; A sliding rod is slidably connected to the fixed pile in the up-down direction, and its lower end has a positioning arm that extends radially outward and is inserted into the positioning hole; The lifting seat also has an outer alignment hole that extends through the positioning hole in a direction perpendicular to the axial direction of the positioning hole, and the outer alignment hole communicates with the positioning hole; the positioning arm has a plurality of inner alignment holes spaced apart along its length, and each inner alignment hole is adapted to communicate with the outer alignment hole. Furthermore, the lifting platform also includes: Connecting bolts are inserted into the interconnected outer and inner alignment holes; and A locking nut is threaded to the connecting bolt and is adapted to engage with the head of the connecting bolt to abut against both sides of the lifting seat.

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