High-speed continuous bag clamping device for packaging machine

Abstract

The utility model relates to the technical field of packaging machines, and provides a high-speed continuous bag clamping device for a packaging machine, which comprises a support plate, a motor, a first hinge wall mechanism, a second hinge wall mechanism, a gear shaft and a connecting rod are mounted on one side of the support plate, and a lower bag clamping mechanism and an upper bag clamping mechanism are mounted on the other side of the support plate. By means of the bag clamping device, redundant components such as a plurality of air cylinders or pushing push rods in a traditional bag clamping device are reduced, the compactness and the operation efficiency of the whole device are improved, and the fault probability is reduced. Due to the adoption of the design that the cam shaft directly drives the first hinge wall mechanism and the second hinge wall mechanism, the synchronism of bag clamping actions is enhanced, the bag clamping speed and stability are improved, and the maintenance difficulty and cost are reduced.

Description

Technical Field

[0001] This utility model relates to the field of packaging machine technology, and in particular to a high-speed continuous bag clamping device for packaging machines. Background Technology

[0002] Traditional packaging machines typically feature complex bag-clamping mechanisms, incorporating multiple redundant components such as cylinders, push rods, and other auxiliary mechanisms. This complexity not only increases the overall size and weight of the equipment but also leads to higher manufacturing costs and increased maintenance difficulty. Furthermore, the lack of precision in the fit between components makes them prone to mechanical failures and wear, further impacting the equipment's reliability and lifespan.

[0003] In traditional bag clamping devices, the synchronization between multiple clamping mechanisms is often poor during operation. This is mainly due to the suboptimal design of each transmission link, leading to inconsistent or delayed actions. For example, when multiple cylinder-driven clamping heads perform bag clamping operations, asynchrony may cause misalignment or damage to the packaging bags, affecting packaging quality and efficiency. This lack of synchronization is particularly prominent in high-speed continuous packaging operations, limiting the improvement of production efficiency.

[0004] The purpose of this invention is to solve the problems of redundant structure and low synchronization of bag clamping devices in traditional packaging machines. Utility Model Content

[0005] The purpose of this utility model is to solve the problems of redundant structure and low synchronization of bag clamping devices in traditional packaging machines. This utility model adopts the following technical solution:

[0006] A high-speed continuous bag clamping device for a packaging machine includes a support plate. A motor, a first hinged wall mechanism, a second hinged mechanism, a gear shaft, and a connecting rod are mounted on one side of the support plate. A lower bag clamping mechanism and an upper bag clamping mechanism are mounted on the other side of the support plate. The motor is driven by a camshaft, which drives the first hinged wall mechanism and the second hinged mechanism to oscillate. The first hinged wall mechanism drives the gear shaft to rotate, and the second hinged mechanism drives the connecting rod to rotate. The gear shaft is driven by at least one first push-pull mechanism, which drives the lower bag clamping mechanism to clamp the bag. The connecting rod is driven by at least one second push-pull mechanism, which drives the upper bag clamping mechanism to clamp the bag.

[0007] As described above, a high-speed continuous bag clamping device for a packaging machine includes a camshaft with at least one cam, a first hinged wall mechanism comprising a frame, one end of which is hinged to a support plate, a spring mounted on the frame, a connecting block mounted on one end of the spring, the connecting block being fixedly connected to the support plate, a first push-pull rod hinged to the frame, a locking block hinged to one end of the first push-pull rod, the locking block being mounted on the gear shaft, and the cam rotating to drive the frame to flip.

[0008] As described above, in a high-speed continuous bag clamping device for a packaging machine, the second hinge mechanism includes a second push-pull rod. The structure of the other components of the second hinge mechanism, except for the second push-pull rod, is the same as that of the first hinge mechanism. The length of the second push-pull rod is longer than that of the first push-pull rod. The locking block of the second hinge mechanism is installed on the connecting rod.

[0009] As described above, a high-speed continuous bag clamping device for a packaging machine includes a first push-pull mechanism comprising a rotating rod, the rotating rod being connected to the gear shaft via a bevel gear, the rotating rod being mounted with a first rotating block, one end of the first rotating block being hinged to a first rod body, and the other end of the first rotating block being hinged to a second rod body.

[0010] As described above, in a high-speed continuous bag clamping device for a packaging machine, the second push-pull mechanism includes a second rotating block, which is sleeved on the connecting rod. The connecting rod is engaged with the second rotating block. A third rod is hinged to one end of the second rotating block, and a fourth rod is hinged to the other end of the second rotating block.

[0011] As described above, a high-speed continuous bag clamping device for a packaging machine includes a lower bag clamping mechanism comprising a slide rail mounted on one side of the support plate. The slide rail is slidably connected to a first slider and a second slider. The first slider is hinged to a first rod, and the second slider is hinged to a second rod. A first horizontal plate is mounted on one end of the first slider and one end of the second slider. At least one first bag clamping head is mounted on the first horizontal plate.

[0012] As described above, a high-speed continuous bag clamping device for a packaging machine includes an upper bag clamping mechanism comprising a second horizontal plate, one end of the third rod and the fourth rod being hinged to the second horizontal plate, and at least one second bag clamping head being mounted on the second horizontal plate.

[0013] As described above, a high-speed continuous bag clamping device for a packaging machine has a roller installed inside the frame, the roller being rotatably connected to the frame, and the roller being tangent to the cam.

[0014] As described above, in a high-speed continuous bag clamping device for a packaging machine, a base plate is installed at one end of the first slider and one end of the second slider, and the first horizontal plate is slidably connected to the base plate.

[0015] As described above, in a high-speed continuous bag clamping device for a packaging machine, a connecting frame is mounted on the first horizontal plate.

[0016] Implementing the embodiments of this utility model has the following beneficial effects:

[0017] 1. This utility model reduces redundant components in traditional bag clamping devices, such as multiple cylinders or push rods, improving the overall compactness and operating efficiency of the equipment and reducing the probability of failure. Due to the design of using a camshaft to directly drive the first hinged wall mechanism and the second hinged mechanism, not only is the synchronization of the bag clamping action enhanced, but the clamping speed and stability are also improved, reducing maintenance difficulty and cost.

[0018] In summary, this utility model solves the problems of redundant structure and low synchronization of bag clamping devices in traditional packaging machines. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of a high-speed continuous bag clamping device for a packaging machine according to this utility model.

[0021] Figure 2 This is a schematic diagram of the structure of a high-speed continuous bag clamping device for a packaging machine after the support plate has been removed.

[0022] Figure 3 yes Figure 1 A structural diagram from another angle.

[0023] Figure 4 This is a schematic diagram of the lower bag clamping mechanism of a high-speed continuous bag clamping device for a packaging machine according to this utility model.

[0024] Figure 5 yes Figure 4 A structural diagram from another angle.

[0025] As shown in the figure:

[0026] 1. Support plate; 2. Motor; 3. Camshaft; 31. Cam; 4. First hinged wall mechanism; 41. Frame; 42. Contraction spring; 43. Roller; 44. First push-pull rod; 45. Connecting block; 46. Locking block; 5. Second hinge mechanism; 51. Second push-pull rod; 6. Gear shaft; 7. First push-pull mechanism; 71. Rotating rod; 72. First rotating block; 73. First rod body; 74. Second rod body; 8. Connecting rod; 9. Second push-pull mechanism; 91. Second rotating block; 92. Third rod body; 93. Fourth rod body; 10. Lower bag clamping mechanism; 101. Slide rail; 102. First slider; 103. Second slider; 104. First horizontal plate; 105. First bag clamping head; 106. Base plate; 107. Connecting frame; 11. Upper bag clamping mechanism; 111. Second horizontal plate; 112. Second bag clamping head. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figures 1 to 5As shown, this utility model proposes a high-speed continuous bag clamping device for a packaging machine, including a support plate 1. A motor 2, a first hinged wall mechanism 4, a second hinged mechanism 5, a gear shaft 6, and a connecting rod 8 are mounted on one side of the support plate 1. A lower bag clamping mechanism 10 and an upper bag clamping mechanism 11 are mounted on the other side of the support plate 1. The key feature is that the motor 2 is driven by a camshaft 3, which drives the first hinged wall mechanism 4 and the second hinged mechanism 5 to swing. The first hinged wall mechanism 4 drives the gear shaft 6 to rotate, and the second hinged mechanism 5 drives the connecting rod 8 to rotate. The gear shaft 6 is driven by at least one first push-pull mechanism 7, which drives the lower bag clamping mechanism 10 to clamp the bag. The connecting rod 8 is driven by at least one second push-pull mechanism 9, which drives the upper bag clamping mechanism 11 to clamp the bag. Specifically, the motor 2 drives the camshaft 3 to rotate, thereby driving the first hinged wall mechanism 4 and the second hinged mechanism 5 to swing. The swinging of the first hinged wall mechanism 4 causes the gear shaft 6 to rotate, and the motion is transmitted to the lower bag clamping mechanism 10 through at least one first push-pull mechanism 7. Simultaneously, the swinging of the second hinged mechanism 5 drives at least one second push-pull mechanism 9 through the connecting rod 8, causing the upper bag clamping mechanism 11 to perform the bag clamping operation. This design ensures that the upper and lower bag clamping mechanisms work synchronously and coordinately, achieving an efficient bag clamping process. It reduces redundant components in traditional bag clamping devices, such as multiple cylinders or push rods, improving the overall compactness and operating efficiency of the equipment and reducing the probability of failure. Due to the design of directly driving the first and second hinged wall mechanisms with a camshaft, not only is the synchronization of the bag clamping action enhanced, but the bag clamping speed and stability are also improved, reducing maintenance difficulty and cost.

[0029] Furthermore, as a preferred embodiment of the present invention and not a limitation thereof, the camshaft 3 is equipped with at least one cam 31, the first hinged wall mechanism 4 includes a frame 41, one end of the frame 41 is hinged to the support plate 1, the frame 41 is equipped with a spring 42, one end of the spring 42 is equipped with a connecting block 45, the connecting block 45 is fixedly connected to the support plate 1, the frame 41 is hinged to a first push-pull rod 44, one end of the first push-pull rod 44 is hinged to a locking block 46, the locking block 46 is installed on the gear shaft 6, and the cam 31 can drive the frame 41 to flip when it rotates. When the motor drives the camshaft to rotate, the cam 31 interacts with the frame 41 in the first hinged wall mechanism 4, causing the frame 41 to flip around its hinge point with the support plate 1. When the frame 41 flips due to the action of the cam 31, it drives the locking block 46 through the first push-pull rod 44, thereby causing the gear shaft 6 to rotate. Due to the presence of the compression spring 42, the frame 41 will always be close to the cam 31, reducing the gap and impact during the transmission process and improving the response speed and accuracy of the entire system. Due to the design of the cam 31, the gear shaft 6 will continuously rotate in both directions as the gear shaft 6 rotates.

[0030] Furthermore, as a preferred embodiment of the present invention and not a limitation thereof, the second hinge mechanism 5 includes a second push-pull rod 51. The structure of all other components of the second hinge mechanism 5, except for the second push-pull rod 51, is the same as that of the first hinge wall mechanism 4. The length of the second push-pull rod 51 is longer than the length of the first push-pull rod 44. The locking block 46 of the second hinge mechanism 5 is mounted on the connecting rod 8. When the camshaft 3 rotates, the cam 31 drives the frame to flip, which in turn drives the locking block 46 via the second push-pull rod 51, causing the connecting rod 8 to rotate accordingly, ensuring the synchronization and coordination of the upper and lower bag clamping mechanisms.

[0031] Furthermore, as a preferred embodiment of the present invention and not a limitation thereof, the first push-pull mechanism 7 includes a rotating rod 71, which is connected to the gear shaft 6 via a bevel gear. A first rotating block 72 is mounted on the rotating rod 71. One end of the first rotating block 72 is hinged to a first rod body 73, and the other end is hinged to a second rod body 74. When the gear shaft 6 rotates, it drives the rotating rod 71 to rotate via the bevel gear. The first rotating block 72 is mounted on the rotating rod 71, with one end hinged to the first rod body 73 and the other end hinged to the second rod body 74. When the rotating rod 71 rotates, the first rotating block 72 also rotates accordingly, and through the linkage of the first rod body 73 and the second rod body 74, the rotation is converted into the linear motion or oscillating action required by the lower bag clamping mechanism 10.

[0032] Furthermore, as a preferred embodiment of the present invention and not a limitation thereof, the second push-pull mechanism 9 includes a second rotating block 91, which is sleeved on the connecting rod 8. The connecting rod 8 is engaged with the second rotating block 91. One end of the second rotating block 91 is hinged to a third rod 92, and the other end is hinged to a fourth rod 93. When the connecting rod 8 rotates due to the action of the second hinge mechanism 5, it drives the second rotating block 91 to rotate together. One end of the second rotating block 91 is hinged to the third rod 92, and the other end is hinged to the fourth rod 93. As the second rotating block 91 rotates, the third rod 92 and the fourth rod 93 are pushed or pulled, thereby converting the rotational motion into the linear or oscillating motion required by the upper bag clamping mechanism 11, enabling the upper bag clamping mechanism 11 to complete a precise and stable bag clamping operation.

[0033] Furthermore, as a preferred embodiment of the present invention and not a limitation thereof, the lower bag clamping mechanism 10 includes a slide rail 101 mounted on one side of the support plate 1. The slide rail 101 is slidably connected to a first slider 102 and a second slider 103. The first slider 102 is hinged to the first rod 73, and the second slider 103 is hinged to the second rod 74. A first horizontal plate 104 is mounted at one end of the first slider 102 and at one end of the second slider 103. At least one first bag clamping head 105 is mounted on the first horizontal plate 104. When the gear shaft 6 drives the rotating rod 71 in the first push-pull mechanism 7 to rotate via the bevel gear, the first rod 73 and the second rod 74 push or pull the first slider 102 and the second slider 103 to slide along the slide rail 101. A first horizontal plate 104 is mounted at one end of each slider, and at least one first bag clamping head 105 is mounted on the first horizontal plate 104. In this way, when the first slider 102 and the second slider 103 move closer or further away from each other along the slide rail 101, the first bag clamping head 105 can perform bag clamping operations synchronously.

[0034] Furthermore, as a preferred embodiment of the invention and not a limitation thereof, the upper bag clamping mechanism 11 includes a second horizontal plate 111, with one end of each of the third rod 92 and the fourth rod 93 hinged to the second horizontal plate 111. At least one second bag clamping head 112 is mounted on the second horizontal plate 111. When the connecting rod 8 rotates, it drives the second rotating block 91 to rotate, thereby pushing or pulling the second horizontal plate 111 linearly through the third rod 92 and the fourth rod 93, causing the two second horizontal plates 111 to move closer or further apart. At least one second bag clamping head 112 is mounted on the second horizontal plate 111. Thus, when the third rod 92 and the fourth rod 93 move, the second horizontal plate 111 moves accordingly, driving the second bag clamping head 112 to complete the bag clamping operation. This design ensures the synchronicity and coordination between the upper and lower bag clamping mechanisms.

[0035] Furthermore, as a preferred embodiment of the invention and not a limitation thereof, a roller 43 is installed inside the frame 41. The roller 43 is rotatably connected to the frame 41 and is tangential to the cam 31. When the motor drives the camshaft 3 to rotate, the cam 31 rotates accordingly and contacts the roller 43. Since the roller 43 can rotate freely, it can roll along the contour of the cam 31, thereby converting the rotational motion of the cam 31 into the oscillating motion of the frame 41. This design not only reduces friction but also reduces mechanical wear. The cam 31 can achieve smoother motion transmission under the action of the roller 43.

[0036] Furthermore, as a preferred embodiment of the invention and not a limitation thereof, a base plate 106 is mounted on one end of the first slider 102 and one end of the second slider 103, and the first horizontal plate 104 is slidably connected to the base plate 106. A connecting frame 107 is mounted on the first horizontal plate 104, which is used to connect a push-pull mechanism, such as a cylinder, thereby driving the first horizontal plate 104 to slide back. Specifically, the first horizontal plate 104 can slide on the base plate 106 to achieve more flexible bag clamping operation. When the push-pull mechanism (e.g., a cylinder) is activated, it drives the first horizontal plate 104 to slide along the base plate 106 through the connecting frame 107, thereby achieving precise control and reset of the first bag clamping head 105. This design enables the lower bag clamping mechanism 10 to not only perform efficient bag clamping actions but also achieve rapid reset through the push-pull mechanism, ensuring the continuity and efficiency of the entire packaging process.

[0037] Example 1:

[0038] This utility model proposes a high-speed continuous bag clamping device for a packaging machine, including a support plate 1. A motor 2, a first hinged wall mechanism 4, a second hinged mechanism 5, a gear shaft 6, and a connecting rod 8 are mounted on one side of the support plate 1. A lower bag clamping mechanism 10 and an upper bag clamping mechanism 11 are mounted on the other side of the support plate 1. The key feature is that the motor 2 is driven by a camshaft 3, which drives the first hinged wall mechanism 4 and the second hinged mechanism 5 to swing. The first hinged wall mechanism 4 drives the gear shaft 6 to rotate, and the second hinged mechanism 5 drives the connecting rod 8 to rotate. The gear shaft 6 is driven by at least one first push-pull mechanism 7, which drives the lower bag clamping mechanism 10 to clamp the bag. The connecting rod 8 is driven by at least one second push-pull mechanism 9, which drives the upper bag clamping mechanism 11 to clamp the bag. Specifically, the motor 2 drives the camshaft 3 to rotate, thereby driving the first hinged wall mechanism 4 and the second hinged mechanism 5 to swing. The swinging of the first hinged wall mechanism 4 causes the gear shaft 6 to rotate, and the motion is transmitted to the lower bag clamping mechanism 10 through at least one first push-pull mechanism 7. Simultaneously, the swinging of the second hinged mechanism 5 drives at least one second push-pull mechanism 9 through the connecting rod 8, causing the upper bag clamping mechanism 11 to perform the bag clamping operation. This design ensures that the upper and lower bag clamping mechanisms work synchronously and coordinately, achieving an efficient bag clamping process. It reduces redundant components in traditional bag clamping devices, such as multiple cylinders or push rods, improving the overall compactness and operating efficiency of the equipment and reducing the probability of failure. Due to the design of directly driving the first and second hinged wall mechanisms with a camshaft, not only is the synchronization of the bag clamping action enhanced, but the bag clamping speed and stability are also improved, reducing maintenance difficulty and cost.

[0039] The camshaft 3 is equipped with at least one cam 31. The first hinged wall mechanism 4 includes a frame 41, one end of which is hinged to the support plate 1. The frame 41 is equipped with a spring 42, one end of which is equipped with a connecting block 45. The connecting block 45 is fixedly connected to the support plate 1. The frame 41 is hinged to a first push-pull rod 44, one end of which is hinged to a locking block 46. The locking block 46 is mounted on the gear shaft 6. When the cam 31 rotates, it can drive the frame 41 to flip. When the motor drives the camshaft to rotate, the cam 31 interacts with the frame 41 in the first hinged wall mechanism 4, causing the frame 41 to flip around its hinge point with the support plate 1. When the frame 41 flips due to the action of the cam 31, it drives the locking block 46 through the first push-pull rod 44, thereby causing the gear shaft 6 to rotate. Due to the presence of the compression spring 42, the frame 41 will always be close to the cam 31, reducing the gap and impact during the transmission process and improving the response speed and accuracy of the entire system. Due to the design of the cam 31, the gear shaft 6 will continuously rotate in both directions as the gear shaft 6 rotates.

[0040] The second hinge mechanism 5 includes a second push-pull rod 51. Except for the second push-pull rod 51, the structure of all other components of the second hinge mechanism 5 is the same as that of the first hinge mechanism 4. The length of the second push-pull rod 51 is longer than that of the first push-pull rod 44. The locking block 46 of the second hinge mechanism 5 is mounted on the connecting rod 8. When the camshaft 3 rotates, the cam 31 drives the frame to flip, which in turn drives the locking block 46 through the second push-pull rod 51, causing the connecting rod 8 to rotate accordingly, ensuring the synchronization and coordination of the upper and lower bag clamping mechanisms.

[0041] The first push-pull mechanism 7 includes a rotating rod 71, which is connected to the gear shaft 6 via a bevel gear. A first rotating block 72 is mounted on the rotating rod 71. One end of the first rotating block 72 is hinged to a first rod body 73, and the other end is hinged to a second rod body 74. When the gear shaft 6 rotates, it drives the rotating rod 71 to rotate via the bevel gear. The first rotating block 72, hinged to the first rod body 73 at one end and the second rod body 74 at the other end, rotates when the rotating rod 71 rotates. Through the linkage of the first rod body 73 and the second rod body 74, the rotation is converted into the linear motion or oscillating action required by the lower bag clamping mechanism 10.

[0042] The second push-pull mechanism 9 includes a second rotating block 91, which is sleeved on the connecting rod 8. The connecting rod 8 is engaged with the second rotating block 91. One end of the second rotating block 91 is hinged to a third rod 92, and the other end is hinged to a fourth rod 93. When the connecting rod 8 rotates due to the action of the second hinge mechanism 5, it drives the second rotating block 91 to rotate as well. One end of the second rotating block 91 is hinged to the third rod 92, and the other end is hinged to the fourth rod 93. As the second rotating block 91 rotates, the third rod 92 and the fourth rod 93 are pushed or pulled, thereby converting the rotational motion into the linear or oscillating motion required by the upper bag clamping mechanism 11, enabling the upper bag clamping mechanism 11 to complete a precise and stable bag clamping operation.

[0043] The lower bag clamping mechanism 10 includes a slide rail 101 mounted on one side of the support plate 1. The slide rail 101 is slidably connected to a first slider 102 and a second slider 103. The first slider 102 is hinged to a first rod 73, and the second slider 103 is hinged to a second rod 74. A first horizontal plate 104 is mounted at one end of both the first slider 102 and the second slider 103. At least one first bag clamping head 105 is mounted on the first horizontal plate 104. When the gear shaft 6 drives the rotating rod 71 in the first push-pull mechanism 7 to rotate via the bevel gear, the first rod 73 and the second rod 74 push or pull the first slider 102 and the second slider 103 to slide along the slide rail 101. Each slider has a first horizontal plate 104 mounted at one end, and at least one first bag clamping head 105 is mounted on the first horizontal plate 104. Thus, when the first slider 102 and the second slider 103 move closer or further away along the slide rail 101, the first bag clamping head 105 can simultaneously perform bag clamping operations.

[0044] The upper bag clamping mechanism 11 includes a second horizontal plate 111, with one end of each of the third rod 92 and the fourth rod 93 hinged to the second horizontal plate 111. At least one second bag clamping head 112 is mounted on the second horizontal plate 111. When the connecting rod 8 rotates, it drives the second rotating block 91 to rotate, which in turn pushes or pulls the second horizontal plate 111 linearly through the third rod 92 and the fourth rod 93, causing the two second horizontal plates 111 to move closer or further apart. At least one second bag clamping head 112 is mounted on the second horizontal plate 111. Thus, when the third rod 92 and the fourth rod 93 move, the second horizontal plate 111 moves accordingly, driving the second bag clamping head 112 to complete the bag clamping operation. This design ensures the synchronicity and coordination between the upper and lower bag clamping mechanisms.

[0045] A roller 43 is installed inside the frame 41, rotatably connected to the frame 41, and tangential to the cam 31. When the motor drives the camshaft 3 to rotate, the cam 31 rotates accordingly and comes into contact with the roller 43. Since the roller 43 can rotate freely, it can roll along the contour of the cam 31, thus converting the rotational motion of the cam 31 into the oscillating motion of the frame 41. This design not only reduces friction but also reduces mechanical wear. The cam 31 can achieve smoother motion transmission under the action of the roller 43.

[0046] A base plate 106 is mounted on one end of the first slider 102 and one end of the second slider 103. The first horizontal plate 104 is slidably connected to the base plate 106. A connecting frame 107 is mounted on the first horizontal plate 104. The connecting frame 107 is used to connect a push-pull mechanism, such as a cylinder, thereby driving the first horizontal plate 104 to slide back. Specifically, the first horizontal plate 104 can slide on the base plate 106 to achieve more flexible bag clamping operation. When the push-pull mechanism (e.g., a cylinder) is activated, it drives the first horizontal plate 104 to slide along the base plate 106 through the connecting frame 107, thereby achieving precise control and reset of the first bag clamping head 105. This design enables the lower bag clamping mechanism 10 to not only complete efficient bag clamping action, but also achieve rapid reset through the push-pull mechanism, ensuring the continuity and efficiency of the entire packaging process.

[0047] Specifically, the working principle of this invention is as follows:

[0048] The bag clamping device is driven by a motor 2 to rotate a camshaft 3. A cam 31 on the camshaft 3 drives a first hinged wall mechanism 4 and a second hinged mechanism 5 to swing. The first hinged wall mechanism 4 transmits motion to a gear shaft 6 via a frame 41, a spring 42, and a first push-pull rod 44, and drives a lower bag clamping mechanism 10 via at least one first push-pull mechanism 7. The second hinged mechanism 5, in turn, drives at least one second push-pull mechanism 9 via a connecting rod 8 and a second push-pull rod 51, causing the upper bag clamping mechanism 11 to perform the bag clamping operation. This design ensures that the upper and lower bag clamping mechanisms work synchronously and coordinately, achieving an efficient bag clamping process.

[0049] In the first hinged wall mechanism 4, the cam 31 is tangent to the roller 43, causing the frame 41 to flip around its hinge point with the support plate 1, and driving the locking block 46 via the first push-pull rod 44 to rotate the gear shaft 6. The gear shaft 6 is driven by a bevel gear to the rotating rod 71 in the first push-pull mechanism 7. The first rotating block 72 on the rotating rod 71 converts the rotational motion into the linear motion required by the lower bag clamping mechanism 10 via the first rod 73 and the second rod 74. Similarly, the second hinged mechanism 5 drives the third rod 92 and the fourth rod 93 via the connecting rod 8 and the second rotating block 91 to convert the rotational motion into the linear motion required by the upper bag clamping mechanism 11.

[0050] The lower bag clamping mechanism 10 includes a slide rail 101, a first slider 102, and a second slider 103. The first slider 102 and the second slider 103 are hinged to the first rod 73 and the second rod 74, respectively, and perform the bag clamping operation through the first bag clamping head 105 on the first horizontal plate 104. The first horizontal plate 104 is equipped with a connecting frame 107, which enables rapid reset through a push-pull mechanism (such as a cylinder). The upper bag clamping mechanism 11 performs the bag clamping operation through the second horizontal plate 111 and the second bag clamping head 112, ensuring the synchronization and coordination between the upper and lower bag clamping mechanisms. This design not only improves the system's response speed and action accuracy but also enhances the reliability and durability of the equipment.

[0051] In summary, this utility model solves the problems of redundant structure and low synchronization of bag clamping devices in traditional packaging machines.

[0052] It should be understood that the terms "first," "second," etc., are used in this utility model to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this utility model, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information. In addition, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0053] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A high-speed continuous bag clamping device for packaging machines, comprising a support plate (1), one side of which is provided with a motor (2), a first hinged wall mechanism (4), a second hinged mechanism (5), a gear shaft (6), a connecting rod (8), the other side of which is provided with a lower bag clamping mechanism (10), an upper bag clamping mechanism (11), characterized in that, The motor (2) is drivingly connected with a camshaft (3), the camshaft (3) is used to drive the first hinged wall mechanism (4) and the second hinged mechanism (5) to swing, the first hinged wall mechanism (4) is used to drive the gear shaft (6) to rotate, the second hinged mechanism (5) is used to drive the connecting rod (8) to rotate, the gear shaft (6) is drivingly connected with at least one first push-pull mechanism (7), the first push-pull mechanism (7) is used to drive the lower bag clamping mechanism (10) to clamping bag movement, the connecting rod (8) is drivingly connected with at least one second push-pull mechanism (9), the second push-pull mechanism (9) is used to drive the upper bag clamping mechanism (11) to clamping bag movement.

2. A high speed continuous bag gripping device for packaging machines as claimed in claim 1, characterized in that, The camshaft (3) is provided with at least one cam (31), the first hinged wall mechanism (4) comprises a frame (41), one end of the frame (41) is hinged with the support plate (1), the frame (41) is provided with a compression spring (42), one end of the compression spring (42) is provided with a connecting block (45), the connecting block (45) is fixedly connected with the support plate (1), the frame (41) is hinged with a first push-pull rod (44), one end of the first push-pull rod (44) is hinged with a clamping block (46), the clamping block (46) is installed on the gear shaft (6), the cam (31) can drive the frame (41) to turn when rotating.

3. A high speed continuous bag gripping device for packaging machines as claimed in claim 2, characterized in that, The second hinged mechanism (5) comprises a second push-pull rod (51), the second hinged mechanism (5) is the same as the first hinged wall mechanism (4) except that the second push-pull rod (51) is provided, the length of the second push-pull rod (51) is longer than that of the first push-pull rod (44), and the clamping block (46) of the second hinged mechanism (5) is installed on the connecting rod (8).

4. A high speed continuous bag gripping device for packaging machines as claimed in claim 1, wherein, The first push-pull mechanism (7) comprises a rotating rod (71), the rotating rod (71) is drivingly connected with the gear shaft (6) through a bevel gear, the rotating rod (71) is provided with a first rotating block (72), one end of the first rotating block (72) is hinged with a first rod body (73), and the other end of the first rotating block (72) is hinged with a second rod body (74).

5. A high speed continuous bag gripping device for packaging machines as claimed in claim 1, wherein, The second push-pull mechanism (9) comprises a second rotating block (91), the second rotating block (91) is sleeved outside the connecting rod (8), the connecting rod (8) is clamped with the second rotating block (91), one end of the second rotating block (91) is hinged with a third rod body (92), and the other end of the second rotating block (91) is hinged with a fourth rod body (93).

6. A high speed continuous bag gripping device for packaging machines as claimed in claim 4, characterized in that, The lower bag clamping mechanism (10) comprises a sliding rail (101) mounted on one side of the support plate (1), the sliding rail (101) is slidably connected with a first sliding block (102) and a second sliding block (103), the first sliding block (102) is hingedly connected with the first rod body (73), the second sliding block (103) is hingedly connected with the second rod body (74), one end of the first sliding block (102) and one end of the second sliding block (103) are both mounted with a first horizontal plate (104), and the first horizontal plate (104) is mounted with at least one first bag clamping head (105).

7. A high speed continuous bag gripping device for packaging machines as claimed in claim 5, characterized in that, The upper bag clamping mechanism (11) comprises a second horizontal plate (111), one end of the third rod body (92) and one end of the fourth rod body (93) are both hingedly connected with the second horizontal plate (111), and the second horizontal plate (111) is mounted with at least one second bag clamping head (112).

8. A high speed continuous bag gripping device for packaging machines as claimed in claim 2, wherein, A roller (43) is mounted in the frame body (41), the roller (43) is rotatably connected with the frame body (41), and the roller (43) is tangent to the cam (31).

9. A high speed continuous bag gripping device for a packaging machine according to claim 6, characterized in that, One end of the first sliding block (102) and one end of the second sliding block (103) are both mounted with a bottom plate (106), and the first horizontal plate (104) is slidably connected with the bottom plate (106).

10. A high speed continuous bag gripping device for a packaging machine according to claim 9, characterized in that, The first horizontal plate (104) is mounted with a connecting frame (107).

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