Automatic packaging machine

Abstract

The invention belongs to the technical field of packaging equipment, and provides an automatic packaging machine which comprises a machine table, a conveying belt, a conveying belt and a conveying belt. The packaging bag conveying mechanism, the workpiece conveying mechanism, the sealing mechanism and the material taking mechanism are sequentially arranged on the machine table in the rotating direction of the rotating platform; the bag opening mechanism is arranged on the side, facing the rotating platform, of the workpiece conveying mechanism; the bag opening mechanism comprises a bag opening piece and a bag expanding piece which are arranged adjacently. Compared with the prior art, the multiple clamping pieces are arranged on the rotating platform, and the packaging bag conveying mechanism, the workpiece conveying mechanism, the bag opening mechanism, the sealing mechanism and the material taking mechanism are sequentially arranged in the rotating direction of the rotating platform, so that integrated operation of automatic bag feeding, bag opening, bagging, sealing and discharging of packaging bags is achieved; and the packaging efficiency and the automation degree are obviously improved.

Description

Technical Field

[0001] The invention belongs to the technical field of packaging equipment, and in particular relates to an automatic packaging machine. Background Art

[0002] In the field of modern automated packaging equipment, automatic packaging machines are widely used in industries such as food, pharmaceuticals, and daily necessities to improve production efficiency and reduce labor costs. The bag opening mechanism, a key component of automatic packaging machines, simulates human hand movements to open the bag, allowing subsequent workpieces to be loaded smoothly and completing the sealing operation.

[0003] Most automatic packaging machines currently on the market use a single-direction bag opening method, using a robotic arm or gripper to open the bag in a fixed direction. This design is suitable for granular or small-volume materials (such as sugar, salt, and powders), and can meet basic bag opening requirements. However, when faced with large, irregularly shaped, or rigid workpieces (such as bottled products and boxed items), the traditional single-direction bag opening method exhibits a series of limitations.

[0004] First, because the bag opens only in one direction, its opening area is limited. This makes it easy for the workpiece to collide with or be squeezed against the bag opening when entering. In particular, when pushing the workpiece into the bag, the front end of the workpiece may directly impact the edge of the bag opening, causing deformation or even damage, thus affecting the overall quality of the package.

[0005] Secondly, when a larger workpiece enters the packaging bag, it exerts lateral pressure on the bag opening, causing wrinkles or collapse in the bag opening. These wrinkles not only prevent the smooth insertion of the workpiece, but also cause problems such as poor heat sealing and loose sealing during the subsequent sealing process, thus affecting the packaging quality of the final product and increasing the scrap rate.

[0006] Furthermore, existing technologies lack effective support and shaping structures to maintain the bag's opening. This can cause uneven force on the bag's opening after the workpiece is bagged, leading to distortion or contraction, making sealing more difficult. Therefore, there is an urgent need for a bagging structure that can work in multiple directions to complete bag opening, expansion, and shaping operations, adapting to the packaging needs of workpieces of varying sizes and shapes.

[0007] Furthermore, existing automatic packaging machines mostly use one-piece packaging bags, which have the following significant drawbacks: 1) Structural rigidity limitations. One-piece continuous packaging bags are designed as an integral, integral unit, requiring precise alignment of the cutting position and length with the machine's shear mechanism. Frequent adjustments to meet packaging requirements for varying specifications reduce production efficiency and make it difficult to meet the flexible demands of high-variety, small-batch production. 2) Limitations of the shear mechanism. Existing shear mechanisms typically rely on mechanical blades or heat-sealing devices to perform the cutting task, making operation complex and time-consuming. Under high-speed production lines, the shear mechanism wears rapidly, leading to reduced cutting accuracy and even problems such as bag edge damage and poor sealing. Furthermore, the waste generated by shearing increases equipment maintenance costs and energy consumption. 3) Compatibility with split-type packaging bags is limited. With growing market demand for split-type packaging bags (such as modular combination packaging and detachable packaging), traditional one-piece packaging bags and their packaging methods are no longer fully adaptable. Split-type packaging bags typically consist of multiple independent units, requiring specialized clamping, positioning, and assembly processes for complete packaging. Existing automatic bagging machines lack a dedicated transport and fixing structure for split bags, resulting in an inability to efficiently complete the bagging operation of split bags, limiting its application in food, medicine and other fields; 4) The contradiction between production efficiency and adaptability. The cutting process of one-piece packaging bags requires additional time and workstations, while the bagging process of split packaging bags often involves more complex positioning and assembly steps.

[0008] In summary, the bag opening mechanisms in current automatic packaging machines face challenges such as poor adaptability, poor bag opening performance, and the tendency to cause deformation at the bag opening. This makes it difficult to meet the requirements for efficient, high-quality packaging of large-volume workpieces, and urgent improvements are needed. Furthermore, the equipment design fails to fully account for the characteristics of split bags, resulting in the need for machine downtime and adjustments when switching packaging modes, seriously impacting the overall efficiency of the production line. Summary of the Invention

[0009] The technical problem to be solved by the present invention is to provide an automatic packaging machine in view of the current status of the existing technology.

[0010] The technical solution adopted by the present invention to solve the above technical problems is as follows: an automatic packaging machine is provided, comprising: a machine table, on which a rotating platform is rotatably provided, and the rotating platform is provided with a plurality of clamping members for fixing packaging bags at intervals along its circumference;

[0011] A packaging bag conveying mechanism, a workpiece conveying mechanism, a sealing mechanism and a material taking mechanism are sequentially arranged on the machine table along the rotation direction of the rotating platform, wherein the packaging bag conveying mechanism is used to convey packaging bags one by one to adjacent clamping members, the workpiece conveying mechanism is used to push the workpiece into the packaging bag on the adjacent clamping member, the sealing mechanism is used to seal the packaging bag on the adjacent clamping member, and the material taking mechanism is used to remove the sealed packaging bag from the adjacent clamping member;

[0012] A bag opening mechanism is provided on the side of the workpiece conveying mechanism facing the rotating platform, and is used to open the packaging bag fixed on the clamping member adjacent to the workpiece conveying mechanism; wherein,

[0013] The bag opening mechanism includes a bag opening member and a bag expanding member arranged adjacent to each other, wherein the bag opening member is used to open the packaging bag fixed on the clamping member, and the bag expanding member is used to expand the packaging bag in a direction perpendicular to the bag opening direction after the bag opening operation is completed, and the bag expanding member has a contracted state and an expanded state;

[0014] When the bag expansion member is in the contracted state, one end of the bag expansion member extends into a moving path of the workpiece on the workpiece conveying mechanism;

[0015] When the workpiece moves along the moving path, the workpiece abuts against one end of the bag expanding member and drives the bag expanding member to switch from the contracted state to the expanded state, so as to perform a bag expanding operation on the packaging bag that has completed the bag opening operation.

[0016] In the above-mentioned automatic packaging machine, the bag expanding member is an elastic member arranged on the workpiece conveying mechanism, and the elastic member includes an elastic member main body arranged on the workpiece conveying mechanism and a bag expanding end elastically connected to the elastic member main body. When the bag expanding member is in the contracted state, the bag expanding end at least partially extends into the moving path of the workpiece on the workpiece conveying mechanism.

[0017] In the above-mentioned automatic packaging machine, the bag opening member includes:

[0018] a first support frame, which is arranged on a side of the workpiece conveying mechanism facing the rotating platform;

[0019] a first driving member, which is disposed on the first supporting frame;

[0020] two clamping arms drivingly connected to the first driving member, wherein the first driving member is used to drive the two clamping arms to move toward or away from each other;

[0021] A connecting block, each of the clamping arms is provided with a connecting block;

[0022] The first suction cup is provided on each of the connecting blocks with at least one first suction cup. When the first suction cup is connected to the air source, it is used to absorb two opposite side walls of the packaging bag.

[0023] In the above-mentioned automatic packaging machine, the workpiece conveying mechanism includes:

[0024] Fixed table;

[0025] A second driving member is provided on the fixed platform, wherein an output end of the second driving member is provided with a bearing seat, and a material receiving channel is provided on the bearing seat, and the material receiving channel is used to receive the workpiece;

[0026] a third driving member, which is arranged on a side of the bearing seat close to the rotating platform, and an output end of the third driving member is provided with two supporting arms, and the third driving member is used to drive the two supporting arms to move towards or away from each other;

[0027] Support block, each support arm is provided with a support block, and the shapes of the two support blocks are adapted to the shape of the workpiece; wherein,

[0028] The bearing seat has a retracted position and a feeding position;

[0029] When the bearing seat is in the retracted position, it drives the two supporting blocks to move out of the working area of ​​the bag opening member, so as to provide a clearance for the bag opening member to open the packaging bag;

[0030] When the supporting seat is in the feeding position, it drives the two support blocks to extend into the packaging bag, and the third driving member drives the two support blocks away from each other, so that the outer side walls of the two support blocks that are away from each other are pressed against the inner side walls of the packaging bag opening, which are used to shape the packaging bag opening.

[0031] In the above-mentioned automatic packaging machine, the workpiece conveying mechanism further includes:

[0032] A fourth driving member is provided on the fixed platform, wherein an output end of the fourth driving member is provided with a pushing rod, one end of which extends into the material receiving channel and is used to push the workpiece to move on the material receiving channel;

[0033] A feeding seat, which is arranged on the bearing seat, is provided with a feeding cavity, one end of which is connected to the material receiving channel;

[0034] a fifth driving member, which is arranged on the feeding seat, and the output end of the fifth driving member movably extends into the feeding cavity, and is used to provide a limit for the workpiece in the feeding cavity;

[0035] A feeding pipe is provided above the feeding seat, the feeding pipe is communicated with the feeding cavity, and is used for providing the workpiece to the feeding cavity;

[0036] a sixth driving member, which is arranged on the feeding seat through the first connecting frame; a pushing block is provided at the output end of the sixth driving member; the pushing block includes a pushing block body and a feeding trough provided on the pushing block body; a limiting portion is provided on the side wall of the feeding trough; a convex portion is provided at one end of the workpiece, and when the limiting portion abuts against the convex portion, it is used to prevent the workpiece in the feeding trough from passing through; the feeding trough has a working position and a sorting position;

[0037] The first sensor is arranged on the feeding seat and is electrically connected to the sixth driving member. The workpiece has an inner ring and an outer ring that are nested with each other. The first sensor is used to sense the inner ring. When the first sensor does not detect the inner ring of the workpiece, the sixth driving member is triggered to operate, so that the feeding chute is switched from the working position to the sorting position; wherein,

[0038] When the feed chute is in the working position, the feed chute is located between the feed pipe and the feed cavity, and is used for feeding the workpiece from the feed pipe into the feed cavity;

[0039] When the feed chute is at the sorting position, the feed chute moves out of the feeding seat to remove the workpieces contained therein from the feed cavity.

[0040] In the above-mentioned automatic packaging machine, the plurality of clamping members each have an expanded state and a locked state, the expanded state being used to receive or release the packaging bag, and the locked state being used to fix the packaging bag on the rotating platform, and the packaging bag conveying mechanism includes:

[0041] A positioning piece used for stacking packaging bags;

[0042] Support rods are arranged in the circumference of the rotating platform, and each of the clamping members has at least two corresponding support rods, and the support rods are used to provide support for the packaging bag fixed on the clamping member;

[0043] a seventh driving member disposed above the rotating platform, wherein an output end of the seventh driving member is provided with a driving block, the driving block being movably disposed above the rotating platform and configured to drive two adjacent clamping members to switch between an expanded state and a locked state;

[0044] a transporting member, which is provided on one side of the positioning member and is used to transport the packaging bags on the positioning member individually to the clamping member in the expanded state;

[0045] A guide member is provided between the rotating platform and the positioning member, and is used for guiding the packaging bag placed on the clamping member when the clamping member is in the expanded state; wherein,

[0046] The driving block includes a release position close to the rotating platform and a fixed position away from the rotating platform;

[0047] When the driving block is in the release position, it is used to put the clamping member into the expanded state;

[0048] When the driving block is in the fixed position, it is used to put the clamping member in the locked state.

[0049] In the above-mentioned automatic packaging machine, the clamping member includes:

[0050] A first support seat, which is arranged on the rotating platform;

[0051] The swing arm is rotatably arranged on the first support seat through a rotating shaft. The swing arm has a driving end and an execution end. The execution end contacts and cooperates with the surface of the rotating platform and is used to compress the packaging bag in a locked state. The driving end is movably abutted against the driving block, and a spring is arranged between the driving end and the rotating platform.

[0052] In the above-mentioned automatic packaging machine, the positioning member includes: a support platform; a plurality of guide posts, wherein the plurality of guide posts are arranged on the support platform; guide sleeves corresponding to the guide posts one by one, wherein the guide sleeves are movably sleeved on the outer side walls of the guide posts through bearings; a pressing block, wherein one end of the pressing block is connected to the guide sleeve and the other end is movably pressed on the edge of the packaging bags stacked on the support platform;

[0053] The guiding member includes: a second support frame; an eighth driving member, which is uprightly arranged on the second support frame; a first pneumatic clamping jaw, which is drivingly connected to the eighth driving member, and the first pneumatic clamping jaw is movably abutted against two opposite sides of the packaging bag to perform a guiding operation on the packaging bag;

[0054] The transport member includes: a third support frame; a ninth driving member, which is laterally connected to the third support frame; a tenth driving member, which is drivingly connected to the ninth driving member, and the ninth driving member is used to drive the tenth driving member to move laterally; a second connecting frame, which is drivingly connected to the tenth driving member, and the tenth driving member is used to drive the second connecting frame to move in a vertical direction; a plurality of second suction cups, which are elastically connected to the second connecting frame and are used to absorb the packaging bags on the positioning member; a second sensor, which is arranged on the second connecting frame and is used to sense the distance moved by the end of the second suction cup.

[0055] In the above-mentioned automatic packaging machine, the sealing mechanism includes:

[0056] Fourth support frame;

[0057] an eleventh driving member, which is horizontally arranged on the fourth supporting frame, and two twelfth driving members are arranged opposite to each other at the output end of the eleventh driving member, and the output ends of the two twelfth driving members are each provided with a bag-pulling rod, and the bag-pulling rod is used to perform a bag-pulling operation on the packaging bag fixed by the clamping member adjacent to the sealing mechanism;

[0058] The thirteenth driving member is vertically arranged on the fourth support frame. Two second support seats are provided at the output end of the thirteenth driving member. The thirteenth driving member is used to drive the two second support seats to move closer to or away from each other. A thermocouple is designed on each second support seat. When the two second support seats move toward each other, the two thermocouples are driven closer to achieve heating and sealing of the packaging bag.

[0059] In the above-mentioned automatic packaging machine, the material taking mechanism includes:

[0060] fifth support frame;

[0061] a fourteenth driving member, which is horizontally arranged on the fifth supporting frame;

[0062] The second pneumatic gripper is drivingly connected to the fourteenth driving member, and the fourteenth driving member is used to drive the second pneumatic gripper to grab the packaging bag on the clamping member adjacent to the material picking mechanism.

[0063] Compared with the prior art, the present invention has the following beneficial effects:

[0064] (1) By setting up multiple clamping parts on the rotating platform and arranging the packaging bag conveying mechanism, workpiece conveying mechanism, bag opening mechanism, sealing mechanism and material taking mechanism in sequence along its rotating direction, the integrated operation of automatic bag loading, bag opening, bag filling, sealing and material discharging of the packaging bag is realized, which significantly improves the packaging efficiency and degree of automation. In particular, by setting up a bag expansion part with a contracted state and an expanded state, the packaging bag can be expanded laterally before the workpiece is pushed, which effectively prevents the bag mouth from being deformed or damaged due to insufficient opening area during the entry of the workpiece, thereby improving the packaging quality and stability.

[0065] (2) The bag expansion part adopts an elastic part and utilizes the elastic restoring force to realize the automatic reset of the bag expansion end, which simplifies the driving mechanism and reduces the complexity and maintenance cost of the equipment. At the same time, the flexible contact mode of the elastic part can also effectively buffer the impact force between the workpiece and the bag expansion end, thereby protecting the packaging bag from damage and improving the safety and stability of the equipment operation.

[0066] (3) The bag opening part adopts a double clamping arm structure, and its movement is controlled by the first driving part. In combination with the suction cup adsorbing the two side walls of the packaging bag, the bag opening operation can be completed more stably.

[0067] (4) By arranging a supporting seat that can move relative to the fixed table on the workpiece conveying mechanism, and a second driving member that drives the supporting seat to move, not only can the workpiece be accurately transported into the packaging bag, but the telescopic function of the supporting seat can also enable it to actively avoid the bag opening area during the bag opening stage to avoid interference; and in the feeding stage, the opening of the packaging bag is shaped by the mutual distance movement of the support blocks, the opening size is expanded, and the workpiece is ensured to enter the bag smoothly, which significantly improves the problem of limited opening in the traditional one-way bag opening method and improves the adaptability of the equipment to large-volume and irregular workpieces.

[0068] (5) The clamping element can accurately grasp and fix the independent units of the split packaging bag by switching between the expanded and locked states, without relying on a mechanical shearing mechanism, meeting the modular packaging requirements. The locating element and the rotating platform work together to separate and directionally transport the packaging bags one by one, eliminating the traditional waste disposal process after shearing and significantly improving production efficiency. The clamping element state is controlled by the drive block, which can dynamically adapt to split bags of different sizes or shapes, enhancing the equipment's adaptability to diverse packaging needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0069] Figure 1 It is a three-dimensional image of the workpiece.

[0070] Figure 2 It is a three-dimensional diagram of an automatic packaging machine of the present invention.

[0071] Figure 3 yes Figure 2 A three-dimensional diagram of the central structure.

[0072] Figure 4 This is a three-dimensional diagram of the bag opening mechanism and workpiece conveying mechanism when installed.

[0073] Figure 5 yes Figure 4 A view from another direction.

[0074] Figure 6 yes Figure 5 A three-dimensional diagram with some structures omitted.

[0075] Figure 7 It is a three-dimensional diagram of the bag opening.

[0076] Figure 8 yes Figure 6 A three-dimensional diagram of the central structure.

[0077] Figure 9 It is a three-dimensional diagram of the partial structure of the workpiece conveying mechanism.

[0078] Figure 10 yes Figure 9 A view from another direction with the feed pipe omitted.

[0079] Figure 11 It is a three-dimensional picture of the workpiece passing through the push block.

[0080] Figure 12 This is a three-dimensional diagram of the rotating platform, clamping parts and packaging bag conveying mechanism during installation.

[0081] Figure 13 yes Figure 12 A three-dimensional diagram with some structures omitted.

[0082] Figure 14 yes Figure 12 A three-dimensional diagram with the rotating platform structure omitted.

[0083] Figure 15 It is a three-dimensional diagram of the sealing mechanism.

[0084] Figure 16 It is a three-dimensional diagram of the material taking mechanism installed on the machine platform.

[0085] In the figure, 100, machine; 110, rotating platform; 120, clamping member; 121, first support seat; 122, swing arm; 122a, driving end; 122b, execution end; 123, spring; 200, packaging bag conveying mechanism; 210, positioning member; 211, support platform; 212, guide column; 213, guide sleeve; 214, pressing block; 220, support rod; 230, seventh driving member; 231, driving block; 240, conveying member; 241, third supporting frame; 242, Ninth driving member; 243, tenth driving member; 244, second connecting frame; 245, second suction cup; 246, second sensor; 250, guide member; 251, second support frame; 252, eighth driving member; 253, first pneumatic clamp; 300, workpiece transport mechanism; 310, fixed platform; 320, second driving member; 321, bearing seat; 322, material receiving channel; 330, third driving member; 331, support arm; 332, support block; 340, fourth driving member; 341 , push rod; 350, feeding seat; 351, feeding chamber; 360, fifth driving member; 370, feeding pipe; 380, sixth driving member; 381, pushing block; 381a, pushing block body; 381b, feeding chute; 381c, limiting part; 390, first sensor; 400, sealing mechanism; 410, fourth supporting frame; 420, eleventh driving member; 430, twelfth driving member; 440, bag-smoothing rod; 450, thirteenth driving member; 460, second supporting seat; 470 , thermocouple; 500, material taking mechanism; 510, fifth support frame; 520, fourteenth driving member; 530, second pneumatic clamp; 600, bag opening mechanism; 610, bag opening member; 611, first support frame; 612, first driving member; 613, clamping arm; 614, connecting block; 615, first suction cup; 620, bag expansion member; 621, elastic member main body; 622, bag expansion end; 700, workpiece; 710, inner ring; 720, outer ring; 730, convex portion; 800, packaging bag. DETAILED DESCRIPTION

[0086] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0087] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0088] like Figures 1 to 16As shown, an automatic packaging machine of the present invention includes: a machine platform 100, a packaging bag conveying mechanism 200, a workpiece conveying mechanism 300, a sealing mechanism 400, a material taking mechanism 500, and a bag opening mechanism 600.

[0089] Specifically, a rotating platform 110 is rotatably provided on the machine 100, and a plurality of clamping members 120 for fixing the packaging bag 800 are provided at intervals along the circumference of the rotating platform 110;

[0090] The packaging bag conveying mechanism 200, the workpiece conveying mechanism 300, the sealing mechanism 400, and the material taking mechanism 500 are sequentially arranged on the machine 100 along the rotation direction of the rotating platform 110. The packaging bag conveying mechanism 200 is used to convey packaging bags 800 one by one to the adjacent clamping member 120. The workpiece conveying mechanism 300 is used to push the workpiece 700 into the packaging bag 800 on the adjacent clamping member 120. The sealing mechanism 400 is used to seal the packaging bag 800 on the adjacent clamping member 120. The material taking mechanism 500 is used to remove the sealed packaging bag 800 from the adjacent clamping member 120.

[0091] The bag opening mechanism 600 is disposed on the side of the workpiece conveying mechanism 300 facing the rotating platform 110 and is used to open the packaging bag 800 fixed on the clamping member 120 adjacent to the workpiece conveying mechanism 300; wherein,

[0092] The bag opening mechanism 600 includes a bag opening member 610 and a bag expanding member 620 arranged adjacent to each other. The bag opening member 610 is used to open the packaging bag 800 fixed to the clamping member 120. The bag expanding member 620 is used to expand the packaging bag 800 in a direction perpendicular to the bag opening direction after the bag opening operation is completed. The bag expanding member 620 has a contracted state and an expanded state.

[0093] When the bag expansion member 620 is in the contracted state, one end of the bag expansion member 620 extends into the moving path of the workpiece 700 on the workpiece conveying mechanism 300 ;

[0094] When the workpiece 700 moves along the moving path, the workpiece 700 abuts against one end of the bag expander 620 and drives the bag expander 620 to switch from the contracted state to the expanded state, so as to expand the packaging bag 800 that has completed the bag opening operation.

[0095] The number of clamping members 120 can be four, with each of the four clamping members 120 corresponding to the packaging bag conveying mechanism 200, the workpiece conveying mechanism 300, the bag opening mechanism 600, and the material retrieving mechanism 500. Of course, the number of clamping members 120 can also be other numbers, such as six or eight. To facilitate the description of the present solution, the following description uses four clamping members 120 as an example.

[0096] In one embodiment, a combination of a motor and a reducer is provided on the machine 100 to drive the rotating platform 110 to rotate on the machine 100 .

[0097] During operation, the bag conveying mechanism 200 first conveys a bag 800 to an adjacent clamping member 120. Subsequently, the rotating platform 110 rotates, driving the clamping member 120 holding the bag 800 to rotate to the position of the workpiece conveying mechanism 300. Simultaneously, the rotating platform 110 rotates another clamping member 120, not loaded with a bag 800, to a position opposite the bag conveying mechanism 200. The bag conveying mechanism 200 then conveys a bag 800 to this clamping member 120. This cycle continues until the packaging process for the same batch of workpieces 700 is complete.

[0098] After the rotating platform 110 rotates the clamping member 120, holding the packaging bag 800, to a position adjacent to the workpiece conveying mechanism 300, the bag opening mechanism 600 begins operation, opening the packaging bag 800 on the clamping member 120 via the bag opening member 610. After the packaging bag 800 is opened, the workpiece conveying mechanism 300 pushes the workpiece 700 into the packaging bag 800. During this process, the workpiece 700 pushes the bag expansion member 620 from a contracted state to an expanded state. Before the workpiece 700 enters the packaging bag 800, the bag is expanded perpendicular to the direction of the bag opening, thereby preventing deformation of the workpiece 700 due to contact with the bag opening.

[0099] In this solution, by providing multiple clamping members 120 on a rotating platform 110 and sequentially arranging a packaging bag conveying mechanism 200, a workpiece conveying mechanism 300, a bag opening mechanism 600, a sealing mechanism 400, and a material removal mechanism 500 along its rotational direction, the integrated operation of automatically loading, opening, filling, sealing, and discharging packaging bags 800 is achieved, significantly improving packaging efficiency and automation. In particular, by providing a bag expansion member 620 capable of both contracted and expanded states, the packaging bag 800 can be expanded laterally before the workpiece 700 is introduced, effectively preventing deformation or damage to the bag opening caused by insufficient opening area during the entry of the workpiece 700, thereby improving packaging quality and stability.

[0100] Furthermore, the bag expansion member 620 is an elastic member arranged on the workpiece conveying mechanism 300, and the elastic member includes an elastic member main body 621 arranged on the workpiece conveying mechanism 300 and an expanding bag end 622 elastically connected to the elastic member main body 621. When the bag expansion member 620 is in a contracted state, the bag expansion end 622 at least partially extends to the moving path of the workpiece 700 on the workpiece conveying mechanism 300.

[0101] The bag expander 620 utilizes an elastic member, leveraging its elastic restoring force to automatically reset the bag expander end 622. This simplifies the drive mechanism, reducing the complexity and maintenance costs of the device. Furthermore, the flexible contact of the elastic member effectively cushions the impact between the workpiece 700 and the bag expander end 622, protecting the packaging bag 800 from damage and enhancing the safety and stability of the device.

[0102] The elastic member is preferably a torsion spring, and the bag expansion end 622 is composed of one leg of the torsion spring, the other leg of which is clamped to the workpiece conveying mechanism 300. The provision of the torsion spring allows the bag expansion end 622 to switch more smoothly from a retracted state to an extended state when the workpiece 700 pushes the bag expansion end 622, and automatically resets after the workpiece 700 passes, ensuring reliable operation and rapid response.

[0103] It is worth mentioning that, referring to Figure 5 and Figure 7 The bag opening part 610 includes: a first support frame 611, which is arranged on the side of the workpiece conveying mechanism 300 facing the rotating platform 110; a first driving member 612, which is arranged on the first support frame 611; two clamping arms 613 that are both driven and connected to the first driving member 612, and the first driving member 612 is used to drive the two clamping arms 613 to move closer to or away from each other; a connecting block 614, each clamping arm 613 is provided with a connecting block 614; a first suction cup 615, each connecting block 614 is provided with at least one first suction cup 615, and when the first suction cup 615 is connected to the air source, it is used to adsorb the two opposite side walls of the packaging bag 800.

[0104] The first support frame 611 can be fixed to the workpiece conveying mechanism 300 by welding or threading. The first driving member 612 is preferably a double-headed cylinder. When the double-headed cylinder is in operation, it can drive the two clamping arms 613 to move closer or farther from each other, causing the suction cups on the two clamping arms 613 to move closer or farther away, thereby completing the bag opening operation of the packaging bag 800.

[0105] The bag opening element 610 utilizes a dual-grip arm structure 613, whose movement is controlled by a first drive element 612. Combined with suction cups that adhere to the sides of the bag 800, this allows for a more stable bag opening operation. Compared to traditional mechanical clamping methods, the use of suction cups not only provides a stronger grip but also reduces the risk of surface damage to the bag 800. This makes it particularly suitable for bags made of film, significantly improving the success rate and applicability of bag opening.

[0106] Reference Figures 2 to 11The workpiece transport mechanism 300 includes: a fixed platform 310; a second driving member 320, which is arranged on the fixed platform 310, and a supporting seat 321 is provided at the output end of the second driving member 320, and a material receiving channel 322 is provided on the supporting seat 321, and the material receiving channel 322 is used to receive the workpiece 700; a third driving member 330, which is arranged on the side of the supporting seat 321 close to the rotating platform 110, and two supporting arms 331 are provided at the output end of the third driving member 330, and the third driving member 330 is used to drive the two supporting arms 331 to move closer to or away from each other; a supporting block 332, each supporting arm 331 is provided with a supporting block 332, and the two supporting arms 331 are provided with a supporting block 332. The outer shapes of the support blocks 332 are adapted to the outer shape of the workpiece 700; wherein, the supporting seat 321 has a retracted position and a feeding position; when the supporting seat 321 is in the retracted position, it drives the two support blocks 332 to move out of the working range of the bag opening part 610, and is used to provide a avoidance position for the bag opening part 610 to open the packaging bag 800; when the supporting seat 321 is in the feeding position, it drives the two support blocks 332 to extend into the packaging bag 800, and the third driving member 330 drives the two support blocks 332 away from each other, so that the outer side walls of the two support blocks 332 that are away from each other are pressed against the inner side wall of the opening of the packaging bag 800, and are used to shape the opening of the packaging bag 800.

[0107] The second driving member 320 is preferably a cylinder, and the third driving member 330 is preferably a double-headed cylinder. In one embodiment, the first support frame 611 is fixed on the fixing platform 310 .

[0108] During operation, when the rotating platform 110 transports the clamping member 120, holding the packaging bag 800, to one side of the support seat 321, the support seat 321, driven by the second driving member 320, initially retracts, driving the two support blocks 332 out of the working area of ​​the bag opening member 610, providing clearance for the bag opening member 610 to open the packaging bag 800. After the rotating platform 110 transports the packaging bag 800 to its proper position, the opening of the packaging bag 800 faces the fixed platform 310 and is positioned between the two clamping arms 613. At this point, the first driving member 612 drives the two clamping arms 613 toward each other, causing the first suction cups 615 to adhere to the two side walls of the packaging bag 800 that face each other. Subsequently, the first driving member 612 again drives the two clamping arms 613 away from each other, completing the bag opening operation on the packaging bag 800 and opening the packaging bag 800.

[0109] When the bag opening member 610 opens the packaging bag 800, due to the certain softness of the material of the packaging bag 800 itself, the shape of the opening after it is opened may not necessarily completely match the outer shape of the workpiece 700. For example, the outer shape of the workpiece 700 is cylindrical, and after the bag opening member 610 opens the packaging bag 800 and the bag expansion member 620 expands the packaging bag 800, the opening of the packaging bag 800 may appear to be approximately quadrilateral. At this time, if the workpiece 700 has a dimensional deviation or its path into the packaging bag 800 is offset, the workpiece 700 may still interfere with the opening of the packaging bag 800. To this end, the present solution provides two support blocks 332 at the end of the support seat 321, which effectively solves the above-mentioned problem.

[0110] Specifically, after the opening of the packaging bag 800 is opened by the bag opening member 610, the second driving member 320 is actuated to move the support seat 321 toward the packaging bag 800, causing the support seat 321 to move from a retracted position to a feeding position. This also drives the two adjacent support blocks 332 through the bag opening member 610 and into the opening of the packaging bag 800. Subsequently, the third driving member 330 is actuated to separate the two support blocks 332, causing the outer walls of the two support blocks 332, which are spaced apart from each other, to mate with the inner walls of the opening of the packaging bag 800, thereby shaping the opening of the packaging bag 800. The shape of the support blocks 332 is adapted to match the workpiece 700. For example, if the workpiece 700 is cylindrical, the support blocks 332 are designed to have a matching arc shape; if the workpiece 700 is square, the support blocks 332 are designed to have a corresponding square structure. By supporting the opening of the packaging bag 800 from the inside, the opening shape of the packaging bag 800 is made to fit the shape of the workpiece 700 more closely, thereby further preventing the workpiece 700 from interfering with the bag opening due to path deviation or shape mismatch during the bagging process, thereby avoiding problems such as wrinkles at the opening of the packaging bag 800.

[0111] The workpiece conveying mechanism 300 in this solution can not only accurately transport the workpiece 700 into the packaging bag 800, but also has the telescopic function of the support seat 321, so that it can actively avoid the bag opening area during the bag opening stage to avoid interference; and in the feeding stage, the opening of the packaging bag 800 is shaped by the mutual distance movement of the support blocks 332, and the opening size is expanded to ensure that the workpiece 700 enters the bag smoothly, which significantly improves the problem of limited opening under the traditional one-way bag opening method and improves the equipment's adaptability to large-volume and irregular workpieces 700.

[0112] Preferably, refer to Figure 6 and Figure 8 The ends of the two support blocks 332 that are close to each other are both provided with a contoured surface that matches the shape of the workpiece 700. The contoured surface forms an extension of the material receiving channel 322 when the two support blocks 332 are away from each other.

[0113] This contoured surface is designed to adapt to the specific shape of the workpiece 700, providing smooth guidance and transition between the workpiece 700 and the packaging bag 800. By providing a contoured surface that matches the shape of the workpiece 700, problems such as jamming or tearing of the packaging bag 800 caused by sudden changes in the workpiece 700's shape can be effectively avoided, significantly improving the smoothness and reliability of the bagging process.

[0114] Furthermore, the workpiece transport mechanism 300 further includes:

[0115] A fourth driving member 340 is disposed on the fixed platform 310 . A push rod 341 is disposed at the output end of the fourth driving member 340 . One end of the push rod 341 extends into the material receiving channel 322 to push the workpiece 700 to move on the material receiving channel 322 .

[0116] A feeding seat 350 is provided on the supporting seat 321 . A feeding cavity 351 is provided on the feeding seat 350 . One end of the feeding cavity 351 is connected to the material receiving channel 322 .

[0117] The fifth driving member 360 is disposed on the feeding base 350 , and the output end of the fifth driving member 360 movably extends into the feeding cavity 351 , and is used to provide a limit for the workpiece 700 in the feeding cavity 351 ;

[0118] A feeding pipe 370 is provided above the feeding seat 350 and is in communication with the feeding cavity 351 for supplying the workpiece 700 to the feeding cavity 351;

[0119] The sixth driving member 380 is mounted on the feeding base 350 via the first connecting frame. A pusher block 381 is provided at the output end of the sixth driving member 380. The pusher block 381 includes a pusher block body 381a and a feeding trough 381b provided on the pusher block body 381a. A limiting portion 381c is provided on the side wall of the feeding trough 381b. A protrusion 730 is provided at one end of the workpiece 700. When the limiting portion 381c abuts against the protrusion 730, the workpiece 700 in the feeding trough 381b is prevented from passing through. The feeding trough 381b has a working position and a sorting position.

[0120] The first sensor 390 is provided on the feeding base 350 and is electrically connected to the sixth driving member 380. The workpiece 700 has an inner ring 710 and an outer ring 720 that are nested with each other. The first sensor 390 is used to sense the inner ring 710. When the first sensor 390 does not detect the inner ring 710 of the workpiece 700, the sixth driving member 380 is triggered to operate, so that the feeding chute 381b is switched from the working position to the sorting position.

[0121] When the feeding chute 381b is in the working position, the feeding chute 381b is located between the feeding pipe 370 and the feeding cavity 351, and is used to feed the workpiece 700 from the feeding pipe 370 into the feeding cavity 351;

[0122] When the feed chute 381b is in the sorting position, the feed chute 381b moves to the outside of the feeding seat 350 to remove the workpiece 700 contained therein from the feed cavity 351.

[0123] The fifth driving member 360 and the sixth driving member 380 are preferably both cylinders, the fourth driving member 340 can be a combination of a cylinder, a motor and a pulley assembly, or a linear guide rail, and the feed end of the feeding pipe 370 (i.e. Figure 5 The upper end of the feeding pipe 370 is connected to the hoist. During operation, the hoist continuously transports the workpiece 700 into the feeding pipe 370.

[0124] Under normal circumstances, after entering the feed pipe 370 from the elevator, the workpieces 700 pass through the feed pipe 370 and the feed chute 381b, ultimately entering the receiving channel 322. Within the receiving channel 322, the fourth drive member 340 drives the push rod 341 to move, aligning the workpieces 700 within the receiving channel 322. When the number of workpieces 700 arranged within the receiving channel 322 reaches the required number for a single load of packaging bags 800, the push rod 341 pushes all of the workpieces 700 into the packaging bags 800, completing the conveying process for the workpieces 700.

[0125] The fifth driving member 360 is used to drive its output end into the material passing cavity 351 after the number of workpieces 700 in the material receiving channel 322 reaches the number required for a single bagging, and to prevent new workpieces 700 from continuing to enter the material receiving channel 322 before all the workpieces 700 in the material receiving channel 322 enter the packaging bag 800.

[0126] However, if a workpiece 700 exhibits an abnormality (such as damage, deformation, misorientation, missing parts, or inconsistent dimensions), the abnormal workpiece 700 must be promptly removed from the feed tube 370 and into the feed chute 381b. The sixth drive member 380 and pusher block 381 effectively address this issue. When the workpiece 700 is functioning normally, the conveying process continues as described above. However, if an abnormality is detected, the sixth drive member 380 drives the pusher block 381 out of the feed chamber 351, thereby removing the abnormal workpiece 700.

[0127] Preferably, (cf. Figure 11One end of the chute 381b has an opening, and an air pipe is disposed thereon, with air outlet directed toward the opening. When the sixth driving member 380 pushes the pusher block 381 out of the feed base 350, the air pipe ejects air, blowing any abnormal workpieces 700 stuck in the chute 381b away from the chute 381b and into the waste bin, automatically removing the abnormal workpieces 700.

[0128] The above technical solution lists the identification and processing methods for the two situations of abnormal orientation and missing parts of the workpiece 700.

[0129] Specifically, one end of the workpiece 700 is provided with a convex portion 730. When the workpiece 700 is oriented correctly (refer to Figure 11 ), the protrusion 730 should be located between the stopper 381c and the sidewall of the feed chute 381b. In this case, the protrusion 730 and the stopper 381c will not interfere, allowing the workpiece 700 to pass smoothly through the feed chute 381b. However, if the workpiece 700 is facing the wrong way, after entering the feed chute 381b, the protrusion 730 will face the stopper 381c and get stuck, preventing the workpiece 700 from entering the receiving channel 322. At this time, the sixth driving member 380 drives the pusher block 381 to move out of the feed chamber 351, thereby removing the workpiece 700 with the incorrect orientation.

[0130] The first sensor 390 is used to identify whether a workpiece 700 has a missing component abnormality. The workpiece 700 has an inner ring 710 and an outer ring 720. When the first sensor 390 does not detect the inner ring 710, it is determined to be a missing component abnormality and triggers a signal, causing the sixth drive member 380 to drive the pusher block 381 out of the feeding chamber 351, thereby removing the abnormal workpiece 700.

[0131] If the workpiece 700 is in the correct orientation but has a missing part abnormality, then after the sixth driving member 380 drives the pushing block 381 to move out of the feeding chamber 351, the workpiece 700 will move away from the feeding trough 381b under the action of its own weight and eventually fall into the silo; if the workpiece 700 not only has a missing part abnormality but also has the wrong orientation, then after the sixth driving member 380 drives the pushing block 381 to move out of the feeding chamber 351, it will be separated from the feeding trough 381b under the action of the air pipe jet and eventually enter the silo.

[0132] Reference Figure 2 、 Figure 3 、 Figures 12 to 14 The plurality of clamping members 120 each have an expanded state and a locked state. The expanded state is used to receive or release the packaging bag 800, and the locked state is used to fix the packaging bag 800 on the rotating platform 110. The packaging bag conveying mechanism 200 includes:

[0133] A positioning member 210 for stacking packaging bags 800;

[0134] Support rods 220 are arranged around the rotating platform 110 , and each clamping member 120 has at least two corresponding support rods 220 . The support rods 220 are used to provide support for the packaging bag 800 fixed on the clamping member 120 ;

[0135] A seventh driving member 230 is disposed above the rotating platform 110. A driving block 231 is disposed at an output end of the seventh driving member 230. The driving block 231 is movably disposed above the rotating platform 110 and is used to drive two adjacent clamping members 120 to switch between the expanded state and the locked state.

[0136] The transporting member 240 is provided on one side of the positioning member 210 and is used to transport the packaging bags 800 on the positioning member 210 individually to the clamping member 120 in the expanded state;

[0137] The guide member 250 is disposed between the rotating platform 110 and the positioning member 210. The guide member 250 is used to guide the packaging bag 800 placed on the clamping member 120 when the clamping member 120 is in the unfolded state; wherein,

[0138] The driving block 231 includes a release position close to the rotating platform 110 and a fixed position away from the rotating platform 110;

[0139] When the driving block 231 is in the release position, it is used to put the clamping member 120 into the expanded state;

[0140] When the driving block 231 is in the fixed position, it is used to put the clamping member 120 into a locked state.

[0141] The seventh driving member 230 is preferably a cylinder. When working, the seventh driving member 230 is started first, driving the driving block 231 to move toward the rotating platform 110, so that the clamping member 120 adjacent to the packaging bag conveying mechanism 200 and the material picking mechanism 500 is in the expanded state. When the clamping member 120 on the material picking mechanism 500 is in the expanded state, it is used to release the packaging bag 800 that has been sealed thereon. After the clamping member 120 adjacent to the packaging bag conveying mechanism 200 is in the expanded state, the conveying member 240 is started, grabs the packaging bag 800 on the positioning member 210 individually, and conveys it to the clamping member 120 adjacent to the conveying member 240 and in the expanded state on the rotating platform 110. The support rod 220 is used to provide support for the packaging bag 800 and the workpiece 700 before one end of the packaging bag 800 is fixed by the clamping member 120 and when the packaging bag 800 is loaded into the workpiece 700, so as to keep the packaging bag 800 flat when the rotating platform 110 rotates, thereby facilitating the subsequent bagging operation of the workpiece 700.

[0142] After the packaging bag 800 is placed, the seventh driving member 230 drives the driving block 231 to reset, so that the clamping member 120 adjacent to the packaging bag conveying mechanism 200 switches to a locked state, so that the packaging bag 800 is fixed on the rotating platform 110. Figure 12 The clockwise rotation (as viewed from above) transports the packaging bag 800 to the workpiece transport mechanism 300 and transfers another clamping member 120 to a position adjacent to the transport member 240. At this point, the driver block 231 operates again to control the clamping member 120 to enter the expanded state. The transport member 240 then transfers another packaging bag 800 to the clamping member 120. The driver block 231 then switches the clamping member 120 to the locked state. This process is repeated until the packaging process for the workpiece 700 is complete.

[0143] The guiding member 250 is used to guide the packaging bag 800 placed on the clamping member 120 when the clamping member 120 is in the unfolded state.

[0144] In this embodiment, the clamping member 120 switches between an expanded and locked state to precisely grasp and secure individual units of the split packaging bag 800, eliminating the need for mechanical shearing mechanisms and meeting modular packaging requirements. The positioning member 210 works in conjunction with the rotating platform 110 to separate and transport the individual packaging bags 800 in a targeted manner, eliminating the traditional post-shear waste disposal process and significantly improving production efficiency. The clamping member 120's state is controlled by the driver block 231, allowing it to dynamically adapt to different sizes and shapes of split bags, enhancing the device's adaptability to diverse packaging needs.

[0145] Preferably, the area of ​​the driving block 231 facing the clamping member 120 is larger than the covering area between two adjacent driving ends 122 a and smaller than the covering area between three adjacent driving ends 122 a.

[0146] During the two processes of the bag conveying mechanism 200 securing the bag 800 and the material removal mechanism 500 removing the packaged bag 800, two clamping members 120 must simultaneously switch to the expanded state: the first, switched to the expanded state to receive a new bag 800; the second, switched to the expanded state to release the packaged bag 800. By optimizing the area of ​​the drive block 231 (i.e., the area of ​​the drive block 231 is larger than the area enclosed by two adjacent drive ends 122a and smaller than the area enclosed by three drive ends 122a), the drive block 231 can be ensured to act on two target clamping members 120 simultaneously during movement, realizing batch state switching control and significantly improving operational efficiency.

[0147] Furthermore, the clamping member 120 includes: a first support seat 121, which is arranged on the rotating platform 110; a swing arm 122, which is arranged on the first support seat 121 by rotating through a rotating shaft, and the swing arm 122 has a driving end 122a and an execution end 122b, and the execution end 122b contacts and cooperates with the surface of the rotating platform 110, and is used to press the packaging bag 800 in a locked state, and the driving end 122a is movably abutted against the driving block 231, and a spring 123 is arranged between the driving end 122a and the rotating platform 110.

[0148] During operation, the drive block 231 moves to the release position, pushing the drive end 122a to overcome the elastic force of the spring 123, causing the swing arm 122 to rotate relative to the first support seat 121, thereby separating the actuating end 122b from the rotating platform 110, and ultimately placing the clamping member 120 in the expanded state. After the packaging bag 800 is placed on the clamping member 120, the drive block 231 moves to the fixed position. At this time, the spring 123 resumes its extension without external force, and the elastic force pushes the swing arm 122 to rotate in the opposite direction relative to the first support seat 121, causing the actuating end 122b to rest against the rotating platform 110 again, and ultimately switching the clamping member 120 to the locked state.

[0149] In this embodiment, spring 123 applies thrust to driving end 122a, causing actuating end 122b to firmly press against packaging bag 800. The swing arm 122 is connected to the first support base 121 via a rotating shaft. Its structure is simple and wear-resistant, making it suitable for high-frequency grasping operations. The elastic contact between actuating end 122b and rotating platform 110 enhances the grip of the clamp 120 on the edge of the packaging bag 800, preventing the bag 800 from slipping during rotation.

[0150] It is worth mentioning that the positioning member 210 includes: a support platform 211; a plurality of guide columns 212, and the plurality of guide columns 212 are arranged on the support platform 211; a guide sleeve 213 corresponding one to the guide column 212, and the guide sleeve 213 is movably sleeved on the outer wall of the guide column 212 through a bearing; a pressing block 214, one end of the pressing block 214 is connected to the guide sleeve 213, and the other end is movably pressed on the edge of the packaging bag 800 stacked on the support platform 211.

[0151] Due to the material properties and thickness of stacked packaging bags 800, when the transport member 240 grabs a single packaging bag 800, it may adhere to the packaging bags 800 below it, making it difficult to separate. To address this issue, the pressure block 214 is designed to prevent this. When the transport member 240 grabs the topmost packaging bag 800 on the support platform 211, the edge of the packaging bag 800 is subjected to pressure from the pressure block 214. The transport member 240, at the gripping position, applies a force opposite to the pressure of the pressure block 214. In this situation, the transport member 240 must elastically deform the topmost packaging bag 800 to release it from the pressure of the pressure block 214 and separate it from the remaining packaging bags 800 on the support platform 211. Since the adhesion force between the lower packaging bag 800 and the top packaging bag 800 is not sufficient to overcome the elastic deformation of the material, the lower packaging bag 800 cannot be deformed synchronously with the top packaging bag 800. Therefore, under the pressure of the pressing block 214, the lower packaging bag 800 cannot be separated from the support platform 211 at the same time as the top packaging bag 800, thereby realizing the layer-by-layer separation of the packaging bag 800, and finally enabling the conveying member 240 to accurately grasp a single packaging bag 800.

[0152] The coordinated design of the guide sleeve 213 and the guide post 212 allows the pressing block 214 to automatically adjust its position relative to the support platform 211 according to the height of the packaging bags 800 stacked on the support platform 211. The provision of a bearing further enhances the smooth adjustment of the pressing block 214, ensuring that even as the number of packaging bags 800 stacked on the support platform 211 decreases, the pressing block 214 can adjust its position in real time, thereby maintaining effective pressure on the topmost packaging bags 800 and ensuring that the transport member 240 can stably grasp individual packaging bags 800.

[0153] The guiding member 250 includes: a second support frame 251; an eighth driving member 252, which is uprightly arranged on the second support frame 251; a first pneumatic clamp 253, which is driven and connected to the eighth driving member 252, and the first pneumatic clamp 253 is movably abutted against the opposite sides of the packaging bag 800 for guiding the packaging bag 800.

[0154] The eighth driving member 252 is preferably a pneumatic cylinder. When the transport member 240 transports the packaging bag 800 to the deployed clamping member 120, the two clamping blocks of the first pneumatic clamping jaw 253 are positioned on opposite sides of the packaging bag 800. At this point, the eighth driving member 252 actuates the first pneumatic clamping jaw 253, forcing the packaging bag 800 between the two clamping blocks. The clamping blocks then move toward each other, pushing the packaging bag 800 to the predetermined position, completing the positioning and guiding operation.

[0155] The transport member 240 includes: a third support frame 241; a ninth driving member 242, which is laterally connected to the third support frame 241; a tenth driving member 243, which is drivingly connected to the ninth driving member 242, and the ninth driving member 242 is used to drive the tenth driving member 243 to move laterally; a second connecting frame 244, which is drivingly connected to the tenth driving member 243, and the tenth driving member 243 is used to drive the second connecting frame 244 to move in a vertical direction; a plurality of second suction cups 245, which are elastically connected to the second connecting frame 244 and are used to adsorb the packaging bag 800 on the positioning member 210; a second sensor 246, which is arranged on the second connecting frame 244 and is used to sense the distance moved by the end of the second suction cup 245.

[0156] The ninth and tenth driving members 242, 243 are preferably pneumatic cylinders; however, the ninth driving member 242 may also be a linear guide. Together, the ninth and tenth driving members 242, 243 form a two-dimensional transport platform, driving the second connecting frame 244 to perform a combination of lateral and vertical movement between the positioning member 210 and the rotating platform 110. The second connecting frame 244 is mounted with a plurality of second suction cups 245, which, when connected to an air source, enable suction to the packaging bag 800.

[0157] As the second suction cup 245 continuously draws the packaging bag 800 from the positioning member 210, the position at which the second suction cup 245 contacts the packaging bag 800 may vary each time it descends, due to possible height variations or slight inclinations on the surface of the stacked packaging bags 800. However, after the second suction cup 245 completes its suction action, the distance between the end of the second suction cup 245 facing away from the packaging bag 800 and the second connecting bracket 244 remains constant. This characteristic is confirmed by the real-time detection of this distance by the second sensor 246, ensuring that the second suction cup 245 consistently and securely holds the packaging bag 800, preventing any failures due to poor suction.

[0158] The elastic connection structure between the second suction cup 245 and the second connecting frame 244 is preferably a spring 123 assembly, specifically comprising a guide rod, a spring 123 sleeve, and a compression spring 123. The second suction cup 245 slides into engagement with the mounting hole on the second connecting frame 244 via the guide rod. The compression spring 123 is sleeved onto the outside of the guide rod and located within the spring 123 sleeve. One end of the compression spring 123 rests against the second connecting frame 244, while the other end acts on the back of the second suction cup 245. This structure allows the second suction cup 245 to experience a certain degree of axial float when in contact with the packaging bag 800, thereby adapting to the different heights of the packaging bag 800 surface. Furthermore, after suction is complete, the spring 123's reset force returns the second suction cup 245 to its initial position, ensuring consistency in its relative position with the second connecting frame 244.

[0159] The above structural design not only improves the adsorption reliability of the second suction cup 245 under complex working conditions, but also enhances the stability and adaptability of the entire transport system.

[0160] Reference Figure 2 、 Figure 3 and Figure 14 The sealing mechanism 400 includes: a fourth support frame 410; an eleventh driving member 420, which is horizontally arranged on the fourth support frame 410, and two twelfth driving members 430 are relatively arranged at the output end of the eleventh driving member 420, and the output ends of the two twelfth driving members 430 are both provided with a bag-smoothing rod 440, which is used to smooth the bag 800 fixed to the clamping member 120 adjacent to the sealing mechanism 400; a thirteenth driving member 450, which is vertically arranged on the fourth support frame 410, and two second supporting seats 460 are provided at the output end of the thirteenth driving member 450, and the thirteenth driving member 450 is used to drive the two second supporting seats 460 to approach or move away from each other, and each second supporting seat 460 is designed with a thermocouple 470. When the two second supporting seats 460 move toward each other, the two thermocouples 470 are driven to approach each other to achieve heating and sealing of the packaging bag 800.

[0161] The eleventh driving member 420 and the twelfth driving member 430 are preferably air cylinders, and the thirteenth driving member 450 is preferably a double-headed air cylinder. During operation, after the rotating platform 110 transports the packaging bag 800 containing the workpiece 700 to the position of the sealing mechanism 400, the eleventh driving member 420 is first actuated, driving the two twelfth driving members 430 to move toward the opening of the packaging bag 800, so that the two bag-smoothing rods 440 enter the packaging bag 800. Then, the two twelfth driving members 430 are actuated simultaneously, driving the two bag-smoothing rods 440 away from each other, simulating the action of a human hand to smooth the opening of the packaging bag 800, so as to prevent wrinkles in the packaging bag 800 during the heat sealing process. After the bag-smoothing operation is completed, the thirteenth driving member 450 is actuated, driving the two second support seats 460 toward each other, so that the two thermocouples 470 first press the packaging bag 800. Subsequently, the eleventh driving member 420 is activated again to withdraw the two bag-pulling rods 440 from the packaging bag 800 , and then the thermocouple 470 is energized to perform heat-melt sealing on the packaging bag 800 .

[0162] The sealing mechanism 400 uses a bag-smoothing rod 440 to pre-align the bag 800, eliminating wrinkles at the bag opening. Thermocouple 470 then heats and seals the bag, ensuring a smooth, well-sealed finish. The dual-sided, simultaneous sealing design improves sealing efficiency and consistency, making it suitable for high-speed production scenarios while reducing product rework due to poor sealing.

[0163] Reference Figure 2 、 Figure 3 and Figure 16The material picking mechanism 500 includes: a fifth support frame 510; a fourteenth driving member 520, which is horizontally arranged on the fifth support frame 510; a second pneumatic clamp 530, which is driven and connected to the fourteenth driving member 520, and the fourteenth driving member 520 is used to drive the second pneumatic clamp 530 to grab the packaging bag 800 on the clamping member 120 adjacent to the material picking mechanism 500.

[0164] The fourteenth driving member 520 can be a cylinder or a linear guide. During operation, the rotating platform 110 transports the sealed packaging bag 800 to the position of the material removal mechanism 500. When the packaging bag 800 reaches the designated position, the fourteenth driving member 520 drives the second pneumatic clamp 530 to move toward the rotating platform 110, enabling it to grab the packaging bag 800 on the rotating platform 110. Subsequently, the clamping member 120 switches to the expanded state, releasing the packaging bag 800. Next, the fourteenth driving member 520 drives the second pneumatic clamp 530 away from the rotating platform 110, separating the packaging bag 800 from the rotating platform 110, completing the material removal operation.

[0165] The retrieving mechanism 500 utilizes pneumatic grippers in conjunction with a horizontal drive element to quickly and accurately grasp sealed bags 800 and remove them from the work area. The entire process is seamless and responsive, minimizing manual intervention and improving the machine's automation and production cycle. Furthermore, the gripping force of the grippers is adjustable to prevent damage to the bags 800 during the grasping process, further enhancing the stability of the equipment and the integrity of the finished product.

[0166] It should be noted that, in the present invention, descriptions such as "first", "second", "one", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly defined. The terms "connected", "fixed", etc. should be understood in a broad sense. For example, "fixed" can be a fixed connection, a detachable connection, or an integral whole; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0167] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0168] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope of the appended claims.

Claims

1. An automatic packaging machine, characterized in that: include: A machine platform, on which a rotating platform is rotatably provided, and the rotating platform is provided with a plurality of clamping members for fixing the packaging bag at intervals along its circumference; A packaging bag conveying mechanism, a workpiece conveying mechanism, a sealing mechanism and a material taking mechanism are sequentially arranged on the machine table along the rotation direction of the rotating platform, wherein the packaging bag conveying mechanism is used to convey packaging bags one by one to adjacent clamping members, the workpiece conveying mechanism is used to push the workpiece into the packaging bag on the adjacent clamping member, the sealing mechanism is used to seal the packaging bag on the adjacent clamping member, and the material taking mechanism is used to remove the sealed packaging bag from the adjacent clamping member; A bag opening mechanism is provided on the side of the workpiece conveying mechanism facing the rotating platform, and is used to open the packaging bag fixed on the clamping member adjacent to the workpiece conveying mechanism; wherein, The bag opening mechanism includes a bag opening member and a bag expanding member arranged adjacent to each other, wherein the bag opening member is used to open the packaging bag fixed on the clamping member, and the bag expanding member is used to expand the packaging bag in a direction perpendicular to the bag opening direction after the bag opening operation is completed, and the bag expanding member has a contracted state and an expanded state; When the bag expansion member is in the contracted state, one end of the bag expansion member extends into a moving path of the workpiece on the workpiece conveying mechanism; When the workpiece moves along the moving path, the workpiece abuts against one end of the bag expanding member and drives the bag expanding member to switch from the contracted state to the expanded state, so as to perform a bag expanding operation on the packaging bag that has completed the bag opening operation.

2. The automatic packaging machine according to claim 1, characterized in that: The bag expansion member is an elastic member arranged on the workpiece conveying mechanism, and the elastic member includes an elastic member main body arranged on the workpiece conveying mechanism and an expanding bag end elastically connected to the elastic member main body. When the bag expansion member is in the contracted state, the bag expansion end at least partially extends into the moving path of the workpiece on the workpiece conveying mechanism.

3. The automatic packaging machine according to claim 1, characterized in that: The bag opening member comprises: a first support frame, which is arranged on a side of the workpiece conveying mechanism facing the rotating platform; a first driving member, which is disposed on the first supporting frame; two clamping arms drivingly connected to the first driving member, wherein the first driving member is used to drive the two clamping arms to move toward or away from each other; A connecting block, each of the clamping arms is provided with a connecting block; The first suction cup is provided on each of the connecting blocks with at least one first suction cup. When the first suction cup is connected to the air source, it is used to absorb two opposite side walls of the packaging bag.

4. The automatic packaging machine according to claim 1, characterized in that: The workpiece transport mechanism comprises: Fixed table; A second driving member is provided on the fixed platform, wherein an output end of the second driving member is provided with a bearing seat, and a material receiving channel is provided on the bearing seat, and the material receiving channel is used to receive the workpiece; a third driving member, which is arranged on a side of the bearing seat close to the rotating platform, and an output end of the third driving member is provided with two supporting arms, and the third driving member is used to drive the two supporting arms to move towards or away from each other; Support block, each support arm is provided with a support block, and the shapes of the two support blocks are adapted to the shape of the workpiece; wherein, The bearing seat has a retracted position and a feeding position; When the bearing seat is in the retracted position, it drives the two supporting blocks to move out of the working area of ​​the bag opening member, so as to provide a clearance for the bag opening member to open the packaging bag; When the supporting seat is in the feeding position, it drives the two support blocks to extend into the packaging bag, and the third driving member drives the two support blocks away from each other, so that the outer side walls of the two support blocks that are away from each other are pressed against the inner side walls of the packaging bag opening, which are used to shape the packaging bag opening.

5. The automatic packaging machine according to claim 4, characterized in that: The workpiece transport mechanism further comprises: A fourth driving member is provided on the fixed platform, wherein an output end of the fourth driving member is provided with a pushing rod, one end of which extends into the material receiving channel and is used to push the workpiece to move on the material receiving channel; A feeding seat, which is arranged on the bearing seat, is provided with a feeding cavity, one end of which is connected to the material receiving channel; a fifth driving member, which is arranged on the feeding seat, and the output end of the fifth driving member movably extends into the feeding cavity, and is used to provide a limit for the workpiece in the feeding cavity; A feeding pipe is provided above the feeding seat, the feeding pipe is communicated with the feeding cavity, and is used for providing the workpiece to the feeding cavity; a sixth driving member, which is arranged on the feeding seat through the first connecting frame; a pushing block is provided at the output end of the sixth driving member; the pushing block includes a pushing block body and a feeding trough provided on the pushing block body; a limiting portion is provided on the side wall of the feeding trough; a convex portion is provided at one end of the workpiece, and when the limiting portion abuts against the convex portion, it is used to prevent the workpiece in the feeding trough from passing through; the feeding trough has a working position and a sorting position; The first sensor is arranged on the feeding seat and is electrically connected to the sixth driving member. The workpiece has an inner ring and an outer ring that are nested with each other. The first sensor is used to sense the inner ring. When the first sensor does not detect the inner ring of the workpiece, the sixth driving member is triggered to operate, so that the feeding chute is switched from the working position to the sorting position; wherein, When the feed chute is in the working position, the feed chute is located between the feed pipe and the feed cavity, and is used for feeding the workpiece from the feed pipe into the feed cavity; When the feed chute is at the sorting position, the feed chute moves out of the feeding seat to remove the workpieces contained therein from the feed cavity.

6. The automatic packaging machine according to claim 1, characterized in that: The plurality of clamping members each have an expanded state and a locked state. The expanded state is used to receive or release the packaging bag, and the locked state is used to fix the packaging bag on the rotating platform. The packaging bag conveying mechanism includes: A positioning piece used for stacking packaging bags; Support rods are arranged in the circumference of the rotating platform, and each of the clamping members has at least two corresponding support rods, and the support rods are used to provide support for the packaging bag fixed on the clamping member; a seventh driving member disposed above the rotating platform, wherein an output end of the seventh driving member is provided with a driving block, the driving block being movably disposed above the rotating platform and configured to drive two adjacent clamping members to switch between an expanded state and a locked state; a transporting member, which is provided on one side of the positioning member and is used to transport the packaging bags on the positioning member individually to the clamping member in the expanded state; A guide member is provided between the rotating platform and the positioning member, and is used for guiding the packaging bag placed on the clamping member when the clamping member is in the expanded state; wherein, The driving block includes a release position close to the rotating platform and a fixed position away from the rotating platform; When the driving block is in the release position, it is used to put the clamping member into the expanded state; When the driving block is in the fixed position, it is used to put the clamping member in the locked state.

7. The automatic packaging machine according to claim 6, characterized in that: The clamping member comprises: A first support seat, which is arranged on the rotating platform; The swing arm is rotatably arranged on the first support seat through a rotating shaft. The swing arm has a driving end and an execution end. The execution end contacts and cooperates with the surface of the rotating platform and is used to compress the packaging bag in a locked state. The driving end is movably abutted against the driving block, and a spring is arranged between the driving end and the rotating platform.

8. The automatic packaging machine according to claim 6, characterized in that: The positioning member includes: a support platform; a plurality of guide posts, wherein the plurality of guide posts are arranged on the support platform; guide sleeves corresponding to the guide posts one by one, wherein the guide sleeves are movably sleeved on the outer side walls of the guide posts via bearings; a pressing block, wherein one end of the pressing block is connected to the guide sleeve and the other end is movably pressed on the edge of the packaging bag stacked on the support platform; The guiding member includes: a second support frame; an eighth driving member, which is uprightly arranged on the second support frame; a first pneumatic clamping jaw, which is drivingly connected to the eighth driving member, and the first pneumatic clamping jaw is movably abutted against two opposite sides of the packaging bag to perform a guiding operation on the packaging bag; The transport member includes: a third support frame; a ninth driving member, which is laterally connected to the third support frame; a tenth driving member, which is drivingly connected to the ninth driving member, and the ninth driving member is used to drive the tenth driving member to move laterally; a second connecting frame, which is drivingly connected to the tenth driving member, and the tenth driving member is used to drive the second connecting frame to move in a vertical direction; a plurality of second suction cups, which are elastically connected to the second connecting frame and are used to absorb the packaging bags on the positioning member; a second sensor, which is arranged on the second connecting frame and is used to sense the distance moved by the end of the second suction cup.

9. The automatic packaging machine according to claim 1, characterized in that: The sealing mechanism comprises: Fourth support frame; an eleventh driving member, which is horizontally arranged on the fourth supporting frame, and two twelfth driving members are arranged opposite to each other at the output end of the eleventh driving member, and the output ends of the two twelfth driving members are each provided with a bag-pulling rod, and the bag-pulling rod is used to perform a bag-pulling operation on the packaging bag fixed by the clamping member adjacent to the sealing mechanism; The thirteenth driving member is vertically arranged on the fourth support frame. Two second support seats are provided at the output end of the thirteenth driving member. The thirteenth driving member is used to drive the two second support seats to move closer to or away from each other. A thermocouple is designed on each second support seat. When the two second support seats move toward each other, the two thermocouples are driven closer to achieve heating and sealing of the packaging bag.

10. The automatic packaging machine according to claim 1, characterized in that: The material taking mechanism comprises: fifth support frame; a fourteenth driving member, which is horizontally arranged on the fifth supporting frame; The second pneumatic gripper is drivingly connected to the fourteenth driving member, and the fourteenth driving member is used to drive the second pneumatic gripper to grab the packaging bag on the clamping member adjacent to the material picking mechanism.

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