Bag hooking equipment for packaging product processing

Abstract

The invention discloses bag hooking equipment for packaging product processing, and belongs to the technical field of packaging equipment. The equipment mainly comprises a rack, a driving mechanism, a moving mechanism, a stretching mechanism and a bag hooking mechanism; the bag hooking mechanism is provided with a plurality of hooking claws with 90-degree bending angles, all the mechanisms cooperate to drive the hooking claws to form a multi-direction composite moving track, and accurate sealing and shaping of packaging bags are achieved. The direction moving mechanism comprises a clamping jaw assembly and a plurality of preset angle direction moving pairs and is matched with the driving mechanism to guide the hook claw track. The stretching mechanism pushes the hook claw to be inserted into a packaging bag seal, the horizontal driving mechanism and the vertical driving mechanism drive the hook claw to open a bag body, the sealing driving mechanism drives the hook claw to bend the opposite side faces of the bag body into an M shape, the other set of opposite side faces are made to collapse synchronously, and seal shaping is completed. According to the equipment, the packaging bag sealing corner inserting regularity and the sealing sealing performance can be remarkably improved, the rejection rate is reduced, the high-precision and batch production requirements are met, the hook claws are convenient to replace, and the universality is high.

Description

Technical Field

[0001] This application relates to the field of packaging equipment technology, and in particular to a bag hooking device for processing packaging products. Background Technology

[0002] In the production and processing of packaging bags, some specific shaped packaging bags commonly used in the food, daily chemical and other fields need to be folded and shaped first (so that the left and right sides of the bag sealing part are bent into an M shape). Only after the two sides form a compliant corner can the subsequent sealing process be carried out. The regularity of the corner directly affects the sealing performance and product appearance.

[0003] However, existing packaging bag processing equipment has significant shortcomings in actual operation: after the packaging bag is pushed out by the pusher, the equipment lacks a precise shaping control mechanism for the sealing area, and can only rely on simple conveying or preliminary compression to complete the transition. This leads to problems such as deformation and wrinkles in the sealing part of the packaging bag, and it is impossible to stably fold out corners with clear creases and standard dimensions. Some products have excessive deviations in the corner angle, or insufficient crease depth, making them prone to springback. This problem can range from minor issues such as the product's formed shape not meeting design standards and failing to meet downstream packaging requirements; to more serious issues such as sealing misalignment due to corner structure failure, resulting in problems like incomplete sealing and cracking, causing the product to be scrapped directly.

[0004] In summary, existing packaging bag processing equipment suffers from poor shaping and instability in the corner shaping and sealing process of products with corner inserts, directly lowering the product qualification rate and making it difficult to adapt to high-precision, mass production scenarios. Summary of the Invention

[0005] To address the aforementioned problems, this application provides a hook bag processing device for packaging products.

[0006] A bag-hooking device for processing packaging products includes a driving mechanism, a moving mechanism, a probing mechanism, and a bag-hooking mechanism; the bag-hooking mechanism includes a plurality of hooks, and the driving mechanism, the moving mechanism, and the probing mechanism work together to drive the hooks to move in order to achieve sealing and shaping of the packaging product.

[0007] By adopting the above technical solution, the coordinated action of the drive mechanism, the moving mechanism and the extending mechanism can provide the hook with precise multi-directional driving force and motion guidance, solving the problem of deformation and wrinkling of the sealing part caused by simple transmission or preliminary compression in existing equipment. This enables the hook to complete the corner shaping and sealing action of the packaged product according to the preset trajectory, effectively improving the regularity of the insertion corner and the sealing performance.

[0008] Furthermore, it also includes a frame, on which a mounting bracket that can slide along a straight line is provided via a sliding pair. The probe mechanism includes a second drive member and a cam mounted on the frame. The cam includes an integrally formed base circle and a protruding section. The output shaft of the second drive member is coaxially and fixedly connected to the base circle to drive the cam to rotate. The probe mechanism further includes a guide assembly, which includes a guide wheel and a guide plate. The guide wheel is mounted on the protruding section via a wheel axle. The guide plate is fixed on the mounting bracket and has a guide groove on the side facing the guide wheel. The guide groove extends in a direction perpendicular to the sliding direction of the sliding pair. The end of the guide wheel away from the protruding section is inserted into the guide groove and rolls with the side wall of the guide groove.

[0009] By adopting the above technical solution, when the second driving component drives the cam to rotate, the protruding section drives the guide wheel to move synchronously. The rolling cooperation of the guide wheel in the guide groove can convert the circumferential motion of the cam into the linear motion of the mounting frame along the sliding pair, so that the mounting frame drives the hook to accurately approach or move away from the packaged product, ensuring that the hook can stably insert into the bag or be pulled out of the bag, providing a precise initial position basis for the subsequent sealing and shaping action.

[0010] Furthermore, the drive mechanism and the directional mechanism are mounted on the mounting frame. The drive mechanism is provided in at least two sets, each set of drive mechanisms including a first drive member and a drive assembly. The power output directions of the several sets of drive mechanisms are arranged at a preset angle, including 90°, so that the pawl forms a multi-directional composite movement trajectory under the drive assembly.

[0011] By adopting the above technical solution, the power output directions of multiple drive mechanisms arranged at preset angles can work with the moving mechanism to provide horizontal, vertical and other multi-directional driving forces for the hooks, so that the hooks form a composite movement trajectory, which can meet the complex action requirements of packaging products such as opening, folding and sealing, and avoid the problem that single-direction drive cannot adapt to the shaping of products with corner structures.

[0012] Furthermore, the drive assembly includes a drive belt and at least two pulleys. The pulleys are rotatably mounted on the mounting frame. The drive belt is tensioned and sleeved on the outer circumference of the pulleys. The output end of the first drive member is connected to the pulleys. The pulley includes a wheel body and baffles coaxially fixed on both sides of the wheel body. The axial projections of the baffles and the wheel body are both circular, and the diameter of the baffles is larger than the diameter of the wheel body, so that the inner side of the baffles and the outer peripheral surface of the wheel body form an annular mounting groove for accommodating and limiting the drive belt.

[0013] By adopting the above technical solution, the annular mounting groove formed by the baffles on both sides of the pulley can effectively limit the transmission belt, preventing the transmission belt from shifting or falling off along the pulley axis during operation; at the same time, the transmission belt is tensioned and sleeved on the outer circumference of the pulley to ensure that the power of the first driving component can be stably transmitted to the transmission belt, avoiding deviation of the pawl movement due to belt misalignment, and improving the transmission reliability of the drive component.

[0014] Furthermore, the outer peripheral surface of the wheel body is provided with a friction part, which extends in a corrugated shape along the circumference of the wheel body, forming alternating peaks and troughs; The top of the crest is a circular arc transition structure, and two adjacent troughs are smoothly connected through the crest. The projection of the trough along the radial direction of the wheel body is a minor arc.

[0015] By adopting the above technical solutions, the corrugated friction part can increase the contact friction between the wheel and the transmission belt, effectively reducing belt slippage; the arc transition structure of the crest and the inferior arc design of the trough can make the transmission belt fit more tightly with the outer peripheral surface of the wheel, avoiding local stress concentration that leads to belt wear, while further improving power transmission efficiency and ensuring that the speed and displacement accuracy of the pawl are controllable.

[0016] Furthermore, the shifting mechanism includes a claw assembly, which includes a locking block and a receiving block. The locking block has a locking protrusion on one side facing the receiving block, and the receiving block has a receiving groove on one end facing the locking block. The transmission belt is placed in the receiving groove and is pressed and secured by the locking protrusion.

[0017] By adopting the above technical solution, the receiving groove can initially position the transmission belt, and the cooperation between the snap-fit ​​protrusion and the receiving groove can firmly press the transmission belt, realize the stable connection between the drive mechanism and the directional mechanism, avoid the power transmission delay or interruption caused by the loose connection between the two, and ensure that the directional mechanism can respond to the power output of the drive mechanism in a timely manner, and drive the hook to accurately adjust the movement direction.

[0018] Furthermore, the directional mechanism also includes directional pairs, with at least two sets of directional pairs arranged at a preset angle, including 90°, to coordinate with the power output direction of the drive mechanism and guide the pawl to form a multi-directional composite movement trajectory.

[0019] By adopting the above technical solution, the guide directions of multiple sets of moving pairs arranged at preset angles can work in synergy with the multi-directional power output of the drive mechanism to accurately guide and regulate the movement trajectory of the hook, avoid trajectory deviation of the hook during compound motion, ensure that the hook can complete the shaping actions such as opening and folding of the packaged product according to the design path, and improve the shaping accuracy.

[0020] Furthermore, the bag hook mechanism also includes a connecting pair, which has at least two sets to cooperate with the moving pair to adjust the movement trajectory of the hook claw.

[0021] By adopting the above technical solution, the connecting pair can serve as a supplementary adjustment structure to the moving pair, adjusting the vertical movement distance of the hooks according to the shaping requirements of different specifications of packaged products, thereby improving the equipment's adaptability to packaged products of different sizes and shapes.

[0022] Furthermore, the bag hook mechanism also includes a connecting plate, which is detachably connected to the hook and the connecting pair.

[0023] By adopting the above technical solution, the detachable connecting plate facilitates quick replacement of the appropriate hooks according to the specifications of the packaged products, without the need to disassemble the connecting pair or other core components, reducing the difficulty of hook replacement and downtime; at the same time, when the hooks are worn or damaged, only the hooks need to be replaced, reducing equipment maintenance costs and resource waste.

[0024] Furthermore, it also includes several sets of position sensors to detect whether the claw has moved into place.

[0025] By adopting the above technical solution, the position sensor can detect the movement position of the hook in key stages such as insertion, opening, and sealing in real time. When the hook reaches the preset position, it will promptly send a signal to control the drive mechanism and the extension mechanism to pause or switch actions, thus avoiding insertion angle deviation and sealing failure caused by the hook not moving in place, or damage to the packaged products caused by excessive movement, and significantly improving the product qualification rate.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. By cooperating with multiple sets of drive mechanisms and directional mechanisms to form a multi-directional composite trajectory, combined with real-time positioning by position sensors, the hooks can accurately complete the opening, cornering and sealing actions of packaged products, effectively solving the problems of insufficient corner regularity and easy rebound of creases in existing equipment, ensuring that the corner angle meets the standard and the crease is clear, improving the sealing performance and product appearance consistency, and reducing the scrap rate caused by shaping problems; 2. The annular mounting groove and corrugated friction part of the pulley in the drive assembly prevent belt misalignment and slippage, ensuring stable power transmission; the claw assembly firmly clamps the transmission belt to avoid power transmission lag; the cam-guide assembly of the extension mechanism cooperates to achieve precise linear movement of the mounting frame. The overall structural design improves the stability of equipment operation, reduces the number of downtime due to failure, and is suitable for mass production needs. 3. The detachable connecting plate facilitates quick replacement of hooks of different specifications, and the connecting pair allows for fine adjustment of the hook trajectory, enabling the equipment to adapt to packaging products with various sizes and shapes with corner structures without the need for separate equipment customization; the design of individually replaceable hooks and the detachable installation of position sensors reduce the difficulty and cost of equipment maintenance, and improve the flexibility and lifespan of equipment use. Attached Figure Description

[0027] Figure 1 This is a three-dimensional view of the equipment, mainly showing the overall structure of the equipment before it is put into operation; Figure 2 This is a stereoscopic view of the device from another perspective; Figure 3 This is a three-dimensional view of the probe mechanism, mainly showing the overall structure of the probe mechanism; Figure 4 This is a three-dimensional view of the probe mechanism, mainly showing the structure of the cam; Figure 5 It is a three-dimensional view of the probe mechanism, mainly showing the specific structure of the guide plate and guide groove; Figure 6 This is a three-dimensional view of the drive mechanism, mainly showing the vertical drive mechanism and the horizontal drive mechanism; Figure 7 This is a three-dimensional view of the drive mechanism, mainly showing the sealing drive mechanism; Figure 8 It is a 3D view of the driving component, mainly showing its specific structure; Figure 9 This is a plan view of the pulley, mainly showing the friction part; Figure 10 This is a three-dimensional view of the directional mechanism, mainly showing the specific structure of the directional auxiliary AC and directional auxiliary EF; Figure 11 This is a three-dimensional view of the steering mechanism, mainly showing the steering sub-d; Figure 12 This is a three-dimensional view of the hook bag mechanism, mainly showing the hook and connecting parts; Figure 13 It is a three-dimensional view of the drive mechanism, the direction-shifting mechanism, and the bag-hooking mechanism; Figure 14 This is a three-dimensional view of the drive mechanism, the directional mechanism, and the hook mechanism from another perspective; Figure 15 The main focus is on showcasing the specific structure of the gripper assembly; Figure 16 The primary focus is on showcasing the first position sensor; Figure 17 The main focus is on showcasing the second position sensor; Figure 18 The main focus is on showcasing the third-position sensor; Figure 19 A view showing the state of the hook extending into the target object; Figure 20 This is a view showing the grappling hook fully extending the target object. Figure 21 This is a view of the object after the hook has sealed it with the grappling hook. Figure 22 This is a view of the state after the hook has been pulled out of the target object.

[0028] Explanation of reference numerals in the attached drawings: 1. Frame; 10. Mounting bracket; 100. Connecting plate; 11. Friction part; 111. Crest; 112. Valley; 12. Baffle; 121. Mounting groove; 21. First driving component a; 22. Driving assembly a; 221. Pulley a; 222. Drive belt a; 23. First driving component b; 24. Driving assembly b; 241. Pulley b; 242. Drive belt b; 25. First driving component c; 26. Driving assembly c; 261. Pulley c; 262. Drive belt c; 3. Claw assembly; 31. Snap-fit ​​block; 311. Snap-fit ​​protrusion; 32. Receiving block; 321. Receiving groove; 41. Moving pair a; 42. Moving pair b; 43. Moving pair c; 44. Moving pair d; 45. Moving pair e; 46. Moving pair f; 5. Cam; 50. Sliding pair 51. Base circle; 52. Protruding section; 53. Second driving component; 54. Guide wheel; 55. Guide plate; 56. Guide groove; 61. First hook a; 62. First hook b; 63. Second hook a; 64. Second hook b; 65. Third hook a; 66. Third hook b; 67. Fixing part; 68. Hook part; 71. Connecting pair a; 72. Connecting pair b; 73. Connecting pair c; 74. Connecting pair d; 81. Moving end a; 82. Sensing end a; 83. Moving end b; 84. Sensing end b; 85. Moving end c; 86. Sensing end c; 90. Intermediate plate a; 91. Intermediate plate b; 92. Intermediate plate c; 93. Intermediate plate d; 94. Intermediate plate e; 95. Intermediate plate f; 96. Intermediate plate g; 97. Intermediate plate h; 98. Intermediate plate i; 99. Intermediate plate j. Detailed Implementation

[0029] The following will refer to the appendix to this application. Figure 1-22 The technical solutions in this application are clearly and completely described herein. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. The components of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0030] This application discloses a bag-hooking device for processing packaging products, referring to... Figure 1 and Figure 2 It includes a drive mechanism, a moving mechanism, a reaching mechanism, a bag hooking mechanism, and a frame 1. Each mechanism is supported by the frame 1 and drives the hook to move precisely through the coordinated action of power transmission and motion guidance, ultimately achieving the sealing and shaping action of the packaged product.

[0031] Reference Figure 1 and Figure 2 In this embodiment, the hooks are arranged in three sets, each set including two hooks: first hook a61, first hook b62, second hook a63, second hook b64, third hook a65, and third hook b66. (Refer to...) Figure 12 Each hook has a 90° bending angle, thus forming two functional parts: a fixing part 67 and a hook part 68. The hook part 68 is used to directly hook the packaged product, while the fixing part 67 is used to connect with other components. The 90° bending angle between the fixing part 67 and the hook part 68 can form a stable engagement when the hook comes into contact with the packaged product, preventing the packaged product from falling off during the sealing process.

[0032] In this embodiment, the packaged product is preferably a packaging bag. The specific sealing process must follow the following logic: First, the first hooks a61 and b62, and the third hooks a65 and b66 must move to the four corners inside the packaging bag to fully support the sealing opening. After the packaging bag is opened, the second hooks a63 and b64 move from the middle of the outer surface of the packaging bag towards the center, opening the two opposite sides of the sealed area, as shown in the attached diagram. Figure 21 As shown, the left and right sides of the seal are bent into an M-shape. During this bending process, the other two opposite sides of the packaging bag seal, as shown in the attached diagram... Figure 21 The top and bottom surfaces shown will collapse towards the center synchronously as the M-shaped bend occurs, ultimately completing the sealing and shaping of the packaging bag. Based on the above sealing logic, all packaging products that can be sealed in this way are suitable for processing using this equipment.

[0033] Reference Figure 3 , Figure 4 and Figure 5A mounting bracket 10, which can slide linearly, is provided on the frame 1 via a sliding pair 50. This sliding pair 50 provides the basis for the subsequent extension mechanism to drive the mounting bracket 10 to move. Specifically, in this embodiment, the sliding pair 50 preferably consists of a slider and a slide rail. The slide rail is fixedly mounted on the frame 1, and the slider is connected to the mounting bracket 10. The relative sliding of the mounting bracket 10 and the frame 1 is achieved through the cooperation of the slider and the slide rail. Furthermore, the sliding direction of the slider and the slide rail is towards the target object (i.e., the packaging bag). This directional design ensures that the first hook a61, the first hook b62, the third hook a65, and the third hook b66 can be smoothly inserted into the packaging bag.

[0034] Reference Figure 3 , Figure 4 and Figure 5 The probe mechanism drives the mounting frame 10 to move along the aforementioned sliding pair 50. It includes a second drive member 53 and a cam 5 mounted on the frame 1. The cam 5 is an integrally formed structure, consisting of a base circle 51 and a protruding section 52. The output shaft of the second drive member 53 is coaxially and fixedly connected to the end of the base circle 51 to drive the cam 5 to rotate as a whole. In this embodiment, the second drive member 53 is preferably a motor. The output shaft of the motor drives the base circle 51 to rotate, thereby driving the protruding section 52 to rotate synchronously. To ensure accurate movement direction, the probe mechanism is also provided with a guide assembly, which includes a guide wheel 54 and a guide plate 55. The guide wheel 54 is mounted on the protruding section 52 via an axle, and the guide plate 55 is fixed to the mounting frame 10. The guide plate 55 has a guide groove 56 on the side facing the guide wheel 54, and the extending direction of the guide groove 56 is perpendicular to the sliding direction of the sliding pair 50. The end of the guide wheel 54 away from the protruding section 52 is inserted into the guide groove 56 and forms a rolling fit with the side wall of the guide groove 56. Based on this structure, the second drive member 53 pushes the guide wheel 54 through the cam 5, and with the guidance of the guide groove 56, it can drive the mounting bracket 10 to reciprocate along the sliding pair 50. Specifically, the guide wheel 54 will be displaced as the protruding section 52 rotates, and its surface rolls along the side wall of the guide groove 56 while pushing the guide plate 55 to move along the length of the slide rail, ultimately achieving precise displacement of the mounting bracket 10.

[0035] Reference Figure 6 and Figure 7 Both the drive mechanism and the directional mechanism are mounted on the mounting bracket 10, and the two work together to provide power and guidance for the hook. The drive mechanism is provided in at least two sets, and each set of drive mechanisms includes a first drive member and a drive assembly. The first drive member is a rotational power source, which is preferably a motor in this embodiment. The power output directions of the several sets of drive mechanisms are arranged at a preset angle, including 90°, so that the hook can form a multi-directional composite movement trajectory under the drive assembly.

[0036] Reference Figure 6 and Figure 7Specifically, regarding the structure of the drive assembly, a set of drive assemblies includes a drive belt and at least two pulleys. In this embodiment, it is preferably one drive belt and two pulleys. The pulleys are rotatably mounted on the mounting frame 10 and can rotate freely relative to the mounting frame 10. The drive belt is tensioned and sleeved on the outer circumference of the pulley. The output end of the first drive component is connected to the pulley to drive the pulley to rotate the drive belt. To prevent the drive belt from deviating and to enhance transmission stability, the pulley is designed as a wheel body with a baffle 12. The baffle 12 is coaxially fixed on both sides of the wheel body. The axial projection of both the baffle 12 and the wheel body is circular, and the diameter of the baffle 12 is larger than the diameter of the wheel body, so that the inner side of the baffle 12 and the outer circumferential surface of the wheel body form an annular mounting groove 121. This mounting groove 121 can be used to accommodate and limit the drive belt.

[0037] Reference Figure 8 and Figure 9 The outer circumferential surface of the pulley is also provided with a friction part 11, which extends in a corrugated shape along the circumference of the pulley, forming alternating peaks 111 and troughs 112. The top of each peak 111 has a rounded transition structure, and adjacent troughs 112 are smoothly connected by peaks 111. The projection of each trough 112 along the radial direction of the pulley is a minor arc. This friction part 11 design increases the contact friction between the pulley and the drive belt, effectively preventing slippage.

[0038] Reference Figure 10 and Figure 11 In this embodiment, the drive mechanism is specifically configured with three sets: a vertical drive mechanism, a horizontal drive mechanism, and a sealing drive mechanism, with their installation positions and functions adapted to each other. The vertical drive mechanism is vertically fixedly installed on one side of the mounting frame 10 relative to the frame 1. The horizontal drive mechanism and the sealing drive mechanism are respectively installed on two opposite surfaces of the mounting frame 10, and are both horizontally arranged relative to the frame 1. Correspondingly, the vertical drive mechanism includes a first drive member a21 and a drive assembly a22. The horizontal drive mechanism includes a first drive member b23 and a drive assembly b24, and the sealing drive mechanism includes a first drive member c25 and a drive assembly c26. Drive assembly a22 includes a pulley a221 and a transmission belt a222. Drive assembly b24 includes a pulley b241 and a transmission belt b242. Drive assembly c26 includes a pulley c261 and a transmission belt c262.

[0039] Reference Figure 10 and Figure 11 The core function of the directional mechanism is to guide the trajectory of the hook in conjunction with the drive mechanism. It includes the claw assembly 3 and the directional pair. The claw assembly 3 is used to realize the power transmission between the drive assembly and the directional pair.

[0040] Reference Figure 15The claw assembly 3 includes a locking block 31 and a receiving block 32. The locking block 31 has a locking protrusion 311 on the side facing the receiving block 32, and the receiving block 32 has a receiving groove 321 on the end facing the locking block 31. During assembly, the drive belt is placed in the receiving groove 321 and pressed and fixed by the locking protrusion 311 to ensure stable power transmission. To achieve bidirectional drive, each drive assembly has at least one claw assembly 3 on both the tight and slack sides of the drive belt.

[0041] Reference Figure 10 and Figure 11 The directional pair is used to provide motion guidance. It is provided in at least two sets, and the guiding directions of several sets of directional pairs are arranged at a preset angle, including 90°. This arrangement is coordinated with the power output direction of the drive mechanism to jointly guide the pawl to form a multi-directional composite movement trajectory.

[0042] Reference Figure 12 The bag hook mechanism also includes a connecting pair, which has at least two sets. Its function is to work with the moving pair to adjust the movement trajectory of the hook claw, further ensuring that the hook claw can meet the sealing requirements of the packaged products.

[0043] Reference Figure 10 and Figure 11 In this embodiment, the structures of the directional joints, connecting joints, and sliding joints 50 are identical, all consisting of sliders and slide rails, but with slight differences depending on functional requirements. In the directional joints, two sliders are slidably mounted on one slide rail; in the connecting joints, one slider is slidably mounted on one slide rail. Specifically, there are six sets of directional joints (directional joints a41, b42, c43, d44, e45, and f46), and four sets of connecting joints (connecting joints a71, b72, c73, and d74). From the installation orientation, directional joints a41-d44 are all horizontally mounted on the mounting frame 10 relative to the frame 1, while directional joints e45 and f46 are vertically mounted on the mounting frame 10 relative to the frame 1. The four sets of connecting joints are all vertically positioned relative to the frame 1.

[0044] Reference Figure 10 and Figure 11Furthermore, to optimize spatial layout and motion coordination, the moving pairs c43, d44, e45, and f46 are arranged in a grid pattern, with an included angle of 90°. Moving pairs a41 and e45 are connected by an intermediate plate a90. Specifically, the slide rail of moving pair a41 is fixedly connected to the intermediate plate a90, the slider of moving pair e45 is fixedly connected to the intermediate plate a90, and one end of the intermediate plate a90 is connected to the slack or tight side of the transmission belt a222 in the drive assembly a22 via a claw assembly 3. Meanwhile, the shifting pair e45 and the shifting pair b42 are also connected to the slack or tight side of the transmission belt a222 in the drive assembly a22 through the intermediate plate b91. When the shifting pair a41 and the shifting pair b42 are connected to the transmission belt a222, they are not on the same side. Through this connection method, when the first drive member a21 drives the pulley a221 to drive the transmission belt a222, the shifting pair a41 and the shifting pair b42 can simultaneously move closer to or further away from the center position of the shifting pair e45, achieving synchronous reverse movement.

[0045] Reference Figure 12 Furthermore, the connecting pair and the shifting pair achieve precise docking through the intermediate plate: connecting pair a71 is connected to shifting pair a41, specifically, the slide rail of connecting pair a71 is fixedly connected to the slider of shifting pair a41 through the intermediate plate c92; connecting pair b72 is connected to shifting pair b42, specifically, the slide rail of connecting pair b72 is fixedly connected to the slider of shifting pair b42 through the intermediate plate d93.

[0046] Reference Figure 12 The bag hooking mechanism also includes a connecting plate 100, which is detachable and used to connect the hook claws and the connecting pair: one end of the connecting plate 100 is detachably connected to the slide rail of the connecting pair, and the other end is detachably connected to the fixing part 67 of the hook claw. This design not only facilitates the replacement of hook claws according to the specifications of the packaged products, but also improves the adaptability of the equipment. The specific connection relationship is as follows: the first hook claw b62 is connected to the connecting pair a71 through the connecting plate 100, and the third hook claw b66 is connected to the connecting pair b72 through the connecting plate 100.

[0047] Reference Figure 13 The ends of intermediate plates a90 and b91 furthest from the vertical drive mechanism are respectively connected to connecting pairs c73 and d74. Specifically, directional joints e45 and f46 are mounted parallel to and spaced apart on the mounting bracket 10. Directional joint e45 is mounted on the mounting bracket 10 near the vertical drive mechanism; directional joint f46 is mounted on the mounting bracket 10 furthest from the vertical drive mechanism. Directional joint f46 is fixedly connected to the ends of intermediate plates a90 and b91 furthest from the vertical drive mechanism via sliders.

[0048] Reference Figure 13The end of the slide rail moving towards sub-a41 away from connecting sub-a71 is connected to the slider of connecting sub-c73 via intermediate plate e94; the end of the slide rail moving towards sub-b42 away from connecting sub-b72 is connected to the slider of connecting sub-d74 via intermediate plate f95. The slide rails of connecting sub-c73 and connecting sub-d74 are connected to the first hook a61 and the third hook a65 respectively via connecting plate 100. Through the connection of the above multiple sets of intermediate plates and sub-structures, the vertical drive mechanism can sequentially drive the moving sub-a41 and moving sub-b42 along moving sub-e45 and moving sub-f46 via drive assembly a22, and further drive the first hook b62, the third hook b66, the hook a61, and the third hook a65 to perform vertical approach and retraction movements via connecting sub-a71, connecting sub-b72, connecting sub-c73, and connecting sub-d74 respectively.

[0049] Reference Figure 10 , Figure 12 and Figure 13 The shifting joint C43 is arranged parallel to shifting joints A41 and B42. The horizontal drive mechanism is connected to shifting joint C43 to achieve horizontal drive of the hook. The slack or tight side of the transmission belt B242 is connected to the intermediate plate G96 through the claw assembly 3. The slack or tight side of the transmission belt B242 is also connected to the intermediate plate H97 through the claw assembly 3. The intermediate plates G96 and H97 are not connected to the transmission belt B242 on the same side. The intermediate plate G96 is fixedly connected to the sliders of connecting joints A71 and B72, and the intermediate plate H97 is fixedly connected to the sliders of connecting joints C73 and D74. The sliders of connecting joints A71 and B72 are fixed parallel to each other on the intermediate plate G96, and the sliders of connecting joints C73 and D74 are fixed parallel to each other on the intermediate plate H97. Based on this structure, the horizontal drive mechanism can simultaneously drive connecting pairs a71 and b72, and connecting pairs c73 and d74 to move closer or further away from each other via pulley b241 and transmission belt b242, thereby driving the first hook a61 and the third hook a65, and the first hook b62 and the third hook b66 to perform actions of moving closer or further away from each other in the horizontal direction.

[0050] Reference Figure 11 and Figure 14 The sealing drive mechanism, the horizontal drive mechanism, and the vertical drive mechanism are mounted on the mounting frame 10 in opposite directions to achieve power output in the sealing direction: the first drive component c25 drives the pulley c261 to drive the transmission belt c262 to run. The slack side or tight side of the transmission belt c262 is connected to the intermediate plate i98 through the claw assembly 3. The slack side or tight side of the transmission belt c262 is also connected to the intermediate plate j99 through the claw assembly 3. The intermediate plate i98 and the intermediate plate j99 are connected to the transmission belt c262 on different sides.

[0051] Reference Figure 11 and Figure 14 The moving auxiliary plate d44 is arranged adjacent to the sealing drive mechanism. The slide rail of the moving auxiliary plate d44 is fixed on the mounting bracket 10. The two sliders on the moving auxiliary plate d44 are fixedly connected to the intermediate plate i98 and the intermediate plate j99, respectively. Specifically, the intermediate plate i98 is simultaneously connected to the slider of the moving auxiliary plate d44 and the claw assembly 3 connected to the drive belt c262; the intermediate plate j99 is simultaneously connected to the slider of the moving auxiliary plate d44 and another claw assembly 3 connected to the drive belt c262. The intermediate plate i98 is also connected to the second claw a63 through the connecting plate 100, and the intermediate plate j99 is also connected to the second claw b64 through the connecting plate 100. When the drive assembly c26 is running, the intermediate plates i98 and j99 will drive the second claw a63 and the second claw b64 to move closer or further away in the horizontal direction.

[0052] Reference Figure 16 , Figure 17 and Figure 18 In this embodiment, several sets of position sensors are also provided to detect whether the hook has moved into place, ensuring sealing accuracy. In this embodiment, the position sensors are preferably general-purpose photoelectric sensors, which include a moving end and a sensing end. Distributing the position sensors along the movement trajectories of the actuators of the drive mechanism, the moving mechanism, and the extending mechanism enables fixed-distance movement of each actuator. Furthermore, the position sensors are detachable, allowing operators to easily adjust their positions according to actual processing needs.

[0053] Reference Figure 16 , Figure 17 and Figure 18 Specifically, in this embodiment, three sets of position sensors are provided. This number represents the minimum number of sets required to ensure stable operation of the device, achieving a balance between cost control and detection efficiency. The three sets of position sensors are a first position sensor, a second position sensor, and a third position sensor. Each set of position sensors includes a moving end and a sensing end, and the movement trajectory of the moving end can pass through the sensing area of ​​the sensing end to ensure detection effectiveness.

[0054] Reference Figure 16 , Figure 17 and Figure 18Furthermore, the sensing end a82 of the first position sensor is fixedly mounted on the intermediate plate b91, and the moving end a81 is fixedly mounted on the intermediate plate d93; the moving end b83 of the second position sensor is fixedly mounted on the intermediate plate a90, and the sensing end b84 is located at the position traversed by the moving end b83 and is fixedly mounted on the mounting bracket 10; the sensing end c86 of the third position sensor is fixedly mounted on the mounting bracket 10 adjacent to the directional pair d44, and the moving end c85 is fixedly mounted on the intermediate plate i98. Through the coordinated detection of the three sets of sensors, the displacement status of the key claw can be fed back in real time, ensuring the coordinated consistency of the actions of each mechanism.

[0055] The implementation principle of this application embodiment is as follows: 1. Initial state preparation In the initial state, the mounting bracket 10 is mounted on the frame 1 via the sliding pair 50. At this time, the mounting bracket 10 is in the reset position away from the target object, i.e., the packaging bag. The sliding pair 50 consists of a slide rail on the frame 1 and a slider on the mounting bracket 10. All hooks, including the first hook a61, the first hook b62, the second hook a63, the second hook b64, the third hook a65, and the third hook b66, are in the retracted state, and the hook portion 68 of the hooks does not contact the packaging bag. The three sets of position sensors, namely the first position sensor, the second position sensor, and the third position sensor, are in a non-triggered state at both their moving ends and sensing ends, standing by in real time to detect the displacement of the hooks. All drive mechanisms, including the first drive component of the vertical drive mechanism, the horizontal drive mechanism, the sealing drive mechanism, and the second drive component 53 of the extension mechanism, are in the stopped state, and the transmission belts in each drive assembly remain stationary.

[0056] 2. The extending mechanism drives the hook to insert into the sealing opening of the packaging bag. The second drive component 53 of the probe mechanism is activated. In this embodiment, the second drive component 53 is preferably a motor. Its output shaft drives the cam 5 to rotate. The cam 5 includes an integrally formed base circle 51 and a protruding section 52. The output shaft is coaxially fixedly connected to the end of the base circle 51, so the base circle 51 and the protruding section 52 will rotate synchronously. As the cam 5 rotates, the protruding section 52 pushes the guide wheel 54. However, due to the limiting effect of the side wall of the guide groove 56, the guide wheel 54 cannot follow the protruding section 52 to make a circular motion, but can only roll along the side wall of the guide groove 56. When the guide wheel 54 rolls, it will generate a thrust on the side wall of the guide groove 56 in the direction of the sliding pair 50. This thrust drives the guide plate 55 to move. Since the guide plate 55 is fixed to the mounting frame 10, the mounting frame 10 will move linearly along the sliding pair 50 on the frame 1. Figure 19 The probe mechanism stops operating when all the hooks are inserted into the sealed packaging bag.

[0057] 3. The horizontal and vertical drive mechanisms drive the hooks to open the packaging bag seal. Reference Figure 20 The first drive component a21 of the vertical drive mechanism is activated. In this embodiment, the first drive component a21 is preferably a motor, whose output end drives the pulley a221 of the drive assembly a22 to rotate. When the pulley a221 rotates, it synchronously drives the transmission belt a222 to rotate. Through the claw assembly 3, the tight side of the transmission belt a222 is connected to the intermediate plate a90, and the loose side is connected to the intermediate plate b91. Therefore, when the transmission belt a222 rotates, it drives the intermediate plates a90 and b91 to move synchronously. At the same time, the moving auxiliary a41 and the moving auxiliary b42 slide along the moving auxiliary e45 and the moving auxiliary f46 respectively in directions away from each other. Connecting pair a71 connects to the first hook b62, connecting pair b72 connects to the third hook b66, connecting pair c73 connects to the first hook a61, and connecting pair d74 connects to the third hook a65. Therefore, when the intermediate plate a90 and intermediate plate b91 move, they will move the first hook a61, the first hook b62, the third hook a65, and the third hook b66 in the up and down directions of the packaging bag seal through moving pair a41, moving pair b42, connecting pair a71, connecting pair b72, connecting pair c73, connecting pair d74, and connecting plate 100, thus opening the cavity at the packaging bag seal. At this time, the moving end b83 of the second position sensor is fixed on the intermediate plate a90, and the moving end b83 will move to the sensing area of ​​the sensing end b84. The sensing end b84 is fixed on the mounting bracket 10. The position sensor sends a positioning signal, the first driving component a21 stops operating, and the hooks remain in the open state.

[0058] The first drive component b23 of the horizontal drive mechanism is activated. In this embodiment, the first drive component b23 is preferably a motor. Its output end drives the pulley b241 of the drive assembly b24 to rotate. When the pulley b241 rotates, it drives the transmission belt b242 to run. When the transmission belt b242 runs, it applies a pushing force that moves away from each other to the sliders of connecting pairs a71, b72, c73, and d74 through the intermediate plates g96 and h97. This causes the first hook a61, the first hook b62, the third hook a65, and the third hook b66 to move toward the four corners of the packaging bag seal, thus fully supporting the seal of the packaging bag.

[0059] 4. The sealing drive mechanism drives the hooks to complete the sealing and shaping of the packaging bag. The first driving component c25 of the sealing drive mechanism is activated. In this embodiment, the first driving component c25 is preferably a motor. Its output end drives the pulley c261 of the drive assembly c26 to rotate. When the pulley c261 rotates, it drives the transmission belt c262 to run. When the transmission belt c262 runs, it drives the intermediate plate i98 and intermediate plate j99 to move closer to each other along the moving auxiliary d44. The moving auxiliary d44 is horizontally installed relative to the frame 1, so the intermediate plate i98 and intermediate plate j99 will move towards the center of the packaging bag, thereby driving the second hook a63 and the second hook b64 to move synchronously from the middle position of the outer surface of the packaging bag sealing point towards the center.

[0060] Reference Figure 21 During the movement of the second claw a63 and the second claw b64, the two opposing sides of the packaging bag seal, such as the left and right sides, are squeezed towards the center, causing these two sides to bend along a preset trajectory to form an M shape. During this bending process, the other two opposing sides of the packaging bag seal, such as the top and bottom sides, are affected by the M-shaped bending and collapse towards the center simultaneously, thus completing the sealing and shaping of the packaging bag.

[0061] When the second claw a63 and the second claw b64 move to the preset position, the moving end c85 of the third position sensor is fixed on the intermediate plate i98. The moving end c85 will move to the sensing area of ​​the sensing end c86. The sensing end c86 is fixed on the mounting bracket 10 adjacent to the moving pair d44. The position sensor sends a positioning signal, the first driving component c25 stops operating, and the sealing action is completed.

[0062] 5. Pull out the hook claw Reference Figure 22 The second drive component 53 of the probe mechanism rotates in the opposite direction, causing the cam 5 to rotate in the opposite direction. The protruding section 52 drives the guide wheel 54 to roll in the opposite direction along the guide groove 56, pushing the guide plate 55 and the mounting bracket 10 to move away from the packaging bag along the sliding pair 50, so that all the hooks are pulled out from the packaging bag seal.

[0063] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A bag-hooking device for processing packaged products, characterized in that, It includes a driving mechanism, a moving mechanism, a probing mechanism, and a bag hooking mechanism; the bag hooking mechanism includes several hooks, and the driving mechanism, the moving mechanism, and the probing mechanism work together to drive the hooks to move in order to achieve sealing and shaping of the packaged product.

2. The bag hooking device for processing packaged products according to claim 1, characterized in that, It also includes a frame (1), on which a mounting bracket (10) that can slide along a straight line is provided via a sliding pair (50). The probe mechanism includes a second drive member (53) and a cam (5) mounted on the frame (1). The cam (5) includes an integrally formed base circle (51) and a protruding section (52). The output shaft of the second drive member (53) is coaxially fixedly connected to the base circle (51) to drive the cam (5) to rotate. The probe mechanism also includes a guide assembly, which includes a guide wheel (54) and a guide plate (55). The guide wheel (54) is mounted on the protruding section (52) via a wheel axle. The guide plate (55) is fixed on the mounting bracket (10) and has a guide groove (56) on the side facing the guide wheel (54). The guide groove (56) extends in the direction perpendicular to the sliding direction of the sliding pair (50). The end of the guide wheel (54) away from the protruding section (52) is inserted into the guide groove (56) and rolls with the side wall of the guide groove (56).

3. The bag-hooking equipment for processing packaged products according to claim 2, characterized in that, The drive mechanism and the directional mechanism are mounted on the mounting bracket (10). The drive mechanism is provided in at least two sets, each set of drive mechanism includes a first drive member and a drive assembly. The power output directions of several sets of drive mechanisms are arranged at a preset angle, including 90°, so that the pawl forms a multi-directional composite movement trajectory under the drive assembly.

4. The bag hooking device for processing packaged products according to claim 3, characterized in that, The drive assembly includes a drive belt and at least two pulleys. The pulleys are rotatably mounted on the mounting bracket (10). The drive belt is tensioned and sleeved on the outer circumference of the pulleys. The output end of the first drive member is connected to the pulleys. The pulley includes a wheel body and baffles (12) coaxially fixed on both sides of the wheel body. The axial projection of the baffles (12) and the wheel body is circular, and the diameter of the baffles (12) is larger than the diameter of the wheel body, so that the inner side of the baffles (12) and the outer circumferential surface of the wheel body form an annular mounting groove (121) for accommodating and limiting the drive belt.

5. The bag-hooking device for processing packaged products according to claim 4, characterized in that, The outer peripheral surface of the wheel body is provided with a friction part (11), which extends in a corrugated shape along the circumference of the wheel body to form alternating peaks (111) and valleys (112); The top of the crest (111) is a circular arc transition structure, and two adjacent troughs (112) are smoothly connected through the crest (111). The projection of the trough (112) along the radial direction of the wheel body is a minor arc.

6. The bag-hooking device for processing packaged products according to claim 4, characterized in that, The shifting mechanism includes a claw assembly (3), which includes a locking block (31) and a receiving block (32). The locking block (31) has a locking protrusion (311) on one side facing the receiving block (32), and the receiving block (32) has a receiving groove (321) on one end facing the locking block (31). The transmission belt is placed in the receiving groove (321) and pressed by the locking protrusion (311).

7. The bag hooking device for processing packaged products according to claim 3, characterized in that, The directional mechanism also includes directional pairs, and at least two sets of directional pairs are provided. The guiding directions of the directional pairs are arranged at a preset angle, including 90°, so as to cooperate with the power output direction of the drive mechanism and guide the pawl to form a multi-directional composite movement trajectory.

8. A bag-hooking device for processing packaged products according to claim 7, characterized in that, The bag hooking mechanism also includes a connecting pair, which has at least two sets to cooperate with the moving pair to adjust the movement trajectory of the hook claw.

9. A bag-hooking device for processing packaged products according to claim 8, characterized in that, The bag hook mechanism also includes a connecting plate (100), which is detachably connected to the hook and the connecting pair.

10. A bag-hooking device for processing packaged products according to claim 1, characterized in that, It also includes several sets of position sensors to detect whether the claw has moved into place.

Images