A bag drawing packaging device

Abstract

This utility model discloses a packaging bag holding device, including a rotating disk that rotates horizontally and has multiple clamping components distributed circumferentially on its bottom outer end for clamping the packaging bag; a fixed disk located above the rotating disk and equipped with a pushing component for moving the clamping components to clamp and release the packaging bag; and a vacuum adsorption mechanism located at the outer end of the rotating disk and corresponding to any one of the clamping components to open the clamped packaging bag. When the clamping components move to the vacuum adsorption mechanism with the rotation of the rotating disk, the clamping components move to squeeze the opening of the clamped packaging bag. This packaging device, through the multiple clamping components located on the outside of the rotating disk, facilitates the clamping of the packaging bag. Combined with the pushing components, it can clamp or release the packaging bag. Combined with the vacuum adsorption mechanism, it can open the clamped packaging bag, facilitating subsequent material filling into the packaging bag, thereby realizing an automated packaging process.

Description

Technical Field

[0001] This utility model relates to the field of material packaging technology, specifically a bag-pulling packaging device. Background Technology

[0002] In the product packaging sector of numerous industries such as food, pharmaceuticals, and daily chemicals, pre-packaging bags have become one of the core pieces of equipment for achieving large-scale, standardized product packaging due to their advantages of high automation, high packaging efficiency, and convenient operation. This type of equipment can automatically complete a series of packaging processes, including bag picking, opening, material filling, and sealing, greatly reducing manual intervention, improving enterprise production efficiency and packaging quality stability, and meeting the demands of modern industrial production for high efficiency and precision in the packaging process.

[0003] As a key transmission and positioning component of bag packaging machines, the indexing turntable's stability and accuracy directly determine the overall efficiency and packaging quality of the machine. Typically, several sets of bag clamping assemblies are evenly installed around the circumference of the indexing turntable. The core function of these clamping assemblies is to reliably hold the bag opening on both sides during the packaging process, ensuring smooth subsequent processes such as opening and filling.

[0004] Most existing bag clamping assemblies use corresponding transmission mechanisms to achieve opening and closing actions, thereby completing the clamping and releasing operation of the packaging bag opening. In actual packaging production, after the bag clamping assembly clamps the packaging bag opening, in order to cooperate with the subsequent bag opening process, the bag opening mechanism applies a pulling force to both sides of the packaging bag opening, causing the bag opening to open to facilitate filling materials. However, since the clamping position and clamping force of existing bag clamping assemblies are mostly in a fixed state after clamping the packaging bag, they cannot adaptively adjust according to the changes in the pulling force on the bag opening during the bag opening process.

[0005] This fixed clamping method makes it easy for the bag opening to slide relative to the clamping part of the bag clamping assembly when subjected to lateral pulling forces during the bag opening process. When the lateral pulling force on the bag opening exceeds the clamping force of the bag clamping assembly, the bag opening will detach from the clamping part of the bag clamping assembly. This detachment not only interrupts the current packaging process, requiring operators to stop the machine and reload the bag, severely impacting the packaging machine's production efficiency; it also may damage the packaging bag during the detachment process, increasing the cost of packaging material waste and reducing the company's production efficiency. Utility Model Content

[0006] Therefore, in order to solve the above-mentioned shortcomings, this utility model provides a packaging bag pulling packaging device. This packaging device can realize automatic clamping and releasing of packaging bags by reasonably setting the clamping components. At the same time, during the clamping process, when the packaging bag rotates with the rotating disk to the working position of the vacuum adsorption mechanism, the clamping components can move before the bag opening opens, squeezing the bag opening of the clamped packaging bag inward, thereby leaving a margin to facilitate the vacuum adsorption mechanism to adsorb the two sides of the bag opening and pull it outward to open the bag opening.

[0007] This utility model is implemented as follows: a packaging bag holding packaging device includes a rotating disk that maintains horizontal rotation and has multiple clamping components for clamping the packaging bag distributed circumferentially at the bottom outer end. A fixed plate is positioned above the rotating plate and has a pushing component on it for moving the clamping assembly to clamp and release the packaging bag; A vacuum adsorption mechanism is located at the outer end of the rotating disk and corresponds to any clamping component to open the clamped packaging bag. When the clamping component moves to the vacuum adsorption mechanism with the rotation of the rotating disk, the clamping component moves to squeeze the opening of the clamped packaging bag.

[0008] Preferably, it also includes a base and a support cylinder, the rotating disk and the fixed disk are disposed above the support cylinder, a driving device is disposed at the outer end of the base, and a transmission mechanism for connecting the driving device and the rotating disk and realizing power transmission is disposed inside the support cylinder.

[0009] Preferably, each of the clamping components specifically includes, A support plate is fixed to the bottom of the rotating disk; The first slide rail is symmetrically arranged on both sides of the support plate and fixed to the bottom of the rotating disk; The clamping arm has one end slidably mounted on the first slide rail via the first slide block, and the other end extends to the outside of the rotating disk and is provided with a clamping claw. The first tension spring is connected between the clamping arms at both ends of the support plate; Rollers are positioned on the opposing surfaces of the two clamping arms and rotate in the up-down direction; The first push plate is set on the bottom of the support plate and moves up and down through the first telescopic device; The second slide rail is located on the side of the support plate; The second slide block, in conjunction with the second slide rail, slides and is fixed to the side of the first push plate to realize the up and down movement of the first push plate.

[0010] Preferably, the top side of the first push plate is inclined and keeps in contact with the roller. When the first push plate moves upward, it pushes the two clamping arms to move outward through the contact between the inclined surface and the roller. When the first push plate moves downward, the two clamping arms move inward through the tension of the first tension spring.

[0011] Preferably, the gripper includes a fixed gripper and a movable gripper. The fixed gripper is fixed to the inner side of the end of the gripping arm. One end of the movable gripper corresponds to the fixed gripper. The middle part of the movable gripper is rotatably mounted on the end of the gripping arm. A pull rod is provided at the other end of the movable gripper. A rotating arm is also provided at the other end of the pull rod. The middle part of the rotating arm is hinged to the gripping arm. One end of the rotating arm is hinged to the pull rod. A push rod is provided above the other end of the rotating arm. The push rod is in contact with the pushing assembly. A second tension spring connected to the fixed gripper is also provided below the connection end of the rotating arm and the pull rod.

[0012] Preferably, the pushing assembly includes a second telescopic device and a second push plate. The second telescopic device is fixed above the fixed disk and keeps its telescopic end facing outward from the fixed disk. One end of the second push plate is fixed to the telescopic end of the second telescopic device, and the other end of the second push plate is bent downward and contacts the push rod.

[0013] Preferably, the vacuum adsorption mechanism specifically includes, The housing is fixed to the support rod; Two sliding rods are distributed vertically throughout the box and slide in a straight line. A pivot is located between two sliding rods and is rotatably mounted on the housing; The transmission plate is fixed in the middle to the outer end of the rotating shaft, and has strip holes at both ends; Two transmission rods are fixed to the sides of two sliding rods and locked into the slots in the transmission plate; Two vacuum suction cups are respectively positioned on the same side below the two sliding rods and are kept facing each other.

[0014] Compared with the prior art, the present invention has the following advantages: This packaging device, through a rationally designed clamping assembly, actively compresses the bag opening inwards to allow for a margin when the packaging bag rotates with the turntable to the vacuum adsorption mechanism's station. This design fundamentally changes the limitations of existing fixed clamping methods: on the one hand, the "pre-tightening" state formed by the bag opening compression can counteract the tangential tension generated when the vacuum adsorption mechanism stretches outwards, preventing the bag opening from sliding along the clamping surface; on the other hand, the reserved margin provides ample operating space for the adsorption mechanism, enabling effective bag opening without excessive pulling of the bag opening. This ensures that when the vacuum adsorption mechanism acts on the outside of the bag opening, it can directly pull the bag opening open, reducing the adsorption force to open the bag opening, avoiding the problem of traditional fixed clamping methods failing to pull the bag opening open when clamped. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the specific embodiments of the present invention to explain the present invention, but do not constitute any limitation on the present invention. In the drawings: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model without the vacuum adsorption mechanism; Figure 3 for Figure 2 The diagram shows only one structural schematic of the clamping component and the pushing component; Figure 4 This is a detailed structural diagram of the clamping assembly of this utility model; Figure 5 for Figure 4 A structural diagram from another perspective; Figure 6 This is a schematic diagram of the vacuum adsorption mechanism of this utility model; Figure 7 A schematic diagram showing the internal structure of a vacuum adsorption mechanism with the casing removed. In the diagram: 1. Base; 2. Support cylinder; 3. Fixed disk; 4. Rotating disk; 5. Clamping assembly; 501. Support plate; 502. First slide rail; 503. Clamping arm; 504. First slide block; 505. Roller; 506. First tension spring; 507. Rotating arm; 508. Push rod; 509. Pull rod; 510. Fixed gripper; 511. Movable gripper; 512. Second tension spring; 513. First push plate; 514. First telescopic device; 515. Second slide rail; 516. Second slide block; 6. Second telescopic device; 7. Second push plate; 8. Vacuum suction mechanism; 801. Box; 802. Support rod; 803. Rotating shaft; 804. Transmission plate; 805. Sliding rod; 806. Transmission rod; 807. Vacuum suction cup. Detailed Implementation

[0016] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only for illustration and explanation of this utility model and are not intended to limit this utility model in any way. The accompanying drawings in this utility model are only for illustrative purposes and to facilitate understanding of the embodiments and are not intended to limit this utility model in any way.

[0017] It should be noted that the structures, proportions, sizes, etc. shown in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0018] As described in the background section, the clamping components in existing automatic bag packaging machines can only clamp and release the bag opening. During the bag opening process, the two sides of the bag opening need to open outwards, which inevitably causes the clamping part to extend and retract inwards. However, the fixed clamping components cannot move, which may cause the bag opening in the clamping part to slip and fall off when the bag opening is opened, affecting the subsequent packaging process.

[0019] For the reasons stated above, please refer to the appendix for solutions to these problems. Figure 1 ~Appendix Figure 3 This utility model provides a packaging bag pulling packaging device, including a rotating disk 4, which maintains horizontal rotation and has a plurality of clamping components 5 arranged circumferentially on the bottom outer end for clamping the packaging bag; A fixed plate 3 is positioned above the rotating plate 4 and is equipped with a pushing component for moving the clamping assembly 5 to clamp and release the packaging bag; The vacuum adsorption mechanism 8 is located at the outer end of the rotating disk 4 and corresponds to any clamping component 5 to open the clamped packaging bag. When the clamping component 5 moves to the vacuum adsorption mechanism 8 with the rotation of the rotating disk 4, the clamping component 5 moves to squeeze the opening of the clamped packaging bag.

[0020] In this embodiment, in order to achieve horizontal support for the fixed disk and the rotating disk and to achieve horizontal rotation of the rotating disk, a base 1 and a support cylinder 2 are also included. The rotating disk 4 and the fixed disk 3 are disposed above the support cylinder 2. A driving device is also provided at the outer end of the base 1. A transmission mechanism for connecting the driving device and the rotating disk 4 and realizing power transmission is provided inside the support cylinder 2.

[0021] In this embodiment, the driving device is a drive motor, and the transmission mechanism is a belt drive mechanism or a chain drive mechanism and a Geneva mechanism. The number of slots in the Geneva mechanism corresponds to the number of clamping components.

[0022] In this embodiment, to facilitate opening the bag opening, please refer to the attached document. Figure 4 and attached Figure 5 Each of the clamping components 5 specifically includes, Support plate 501 is fixed to the bottom of rotating disk 4; The first slide rail 502 is symmetrically arranged on both sides of the support plate 501 and fixed to the bottom of the rotating disk 4; The clamping arm 503 has one end slidably mounted on the first slide rail 502 via the first slide block 504, and the other end extends to the outside of the rotating disk 4 and is provided with a clamping claw. The first tension spring 506 is connected between the clamping arms 503 at both ends of the support plate 501; Roller 505 is disposed on the opposite surface of the two clamping arms 503 and rotates in the up and down direction; The first push plate 513 is disposed on the bottom of the support plate 501 and moves up and down through the first telescopic device 514; The second slide rail 515 is provided on the side of the support plate 501; The second slide block 516 cooperates with the second slide rail 515 to slide and is fixed to the side of the first push plate 513 to realize the up and down movement of the first push plate 513.

[0023] Furthermore, to ensure that the bag opening of the clamped packaging bag is opened, thus facilitating the opening and also enabling the clamping of packaging bags of different sizes, the top side of the first push plate 513 is inclined and keeps in contact with the roller 505. When the first push plate 513 moves upward, it pushes the two clamping arms 503 outward through the contact between the inclined surface and the roller 505. When the first push plate 513 moves downward, the two clamping arms 503 move inward through the pulling force of the first tension spring 506.

[0024] In this embodiment, to achieve the clamping and releasing of the bag opening of the packaging bag, thereby realizing the gripping of the packaging bag, the gripper includes a fixed gripper 510 and a movable gripper 511. The fixed gripper 510 is fixed to the inner side of the end of the gripping arm 503. One end of the movable gripper 511 corresponds to the fixed gripper 510, and the middle part of the movable gripper 511 is rotatably mounted on the end of the gripping arm 503. The other end of the movable gripper 511 is provided with a pull rod 509. The other end of the pull rod 509 is also provided with a rotating arm 507. The middle part of the rotating arm 507 is hinged to the gripping arm 503. One end of the rotating arm 507 is hinged to the pull rod 509. A push rod 508 is provided above the other end of the rotating arm 507. The push rod 508 is in contact with the pushing component. A second tension spring 512 connected to the fixed gripper 510 is also provided below the connection end of the rotating arm 507 and the pull rod 509.

[0025] Furthermore, in order to achieve the clamping and releasing of the bag opening of the packaging bag, the pushing component includes a second telescopic device 6 and a second push plate 7. The second telescopic device 6 is fixed above the fixed plate 3 and keeps the telescopic end facing the outside of the fixed plate 3. One end of the second push plate 7 is fixed on the telescopic end of the second telescopic device 6, and the other end of the second push plate 7 is bent downward and contacts the push rod 508.

[0026] In this embodiment, please refer carefully to the appendix. Figure 6 and attached Figure 7 To enable the opening of the clamped packaging bag, the vacuum adsorption mechanism 8 specifically includes: Box 801 is fixed to support rod 802; Two sliding rods 805 are distributed vertically and pass through the housing 801, maintaining a straight sliding motion. A rotating shaft 803 is located between two sliding rods 805 and is rotatably mounted on the housing 801. The transmission plate 804 is fixed in the middle to the outer end of the rotating shaft 803, and has strip holes at both ends; Two transmission rods 806 are fixed to the sides of two sliding rods 805 and are engaged in the slots of the transmission plate 804; Two vacuum suction cups 807 are respectively located on the same side below the two sliding rods 805 and are positioned opposite each other.

[0027] Instructions for using this packaging device: First, the second telescopic device 6 extends, driving the second push plate 7 to push the push rod 508, which in turn drives the rotating arm 507 to rotate around the center point. During the rotation, the other end of the rotating arm 507 pulls the pull rod 509 to move. At the same time, the second tension spring 512 undergoes elastic deformation, and the other end of the pull rod 509 pulls the movable gripper 511 to rotate around the hinge point. The rotation of the movable gripper 511 opens the gap between the two grippers, making it easier to put in the packaging bag. After the packaging bag is placed, the second telescopic device 6 retracts. Under the elastic action of the second tension spring 512, the rotating arm 507 rotates, which causes the movable gripper 511 to rotate in the opposite direction to approach the fixed gripper 510, thereby clamping the two sides of the bag opening.

[0028] Then, the drive device drives the rotating disk 4 to rotate once, rotating the clamping component 5 of the station where the clamped packaging bag is located to the position of the vacuum adsorption mechanism 8. At this time, the first telescopic device 514 retracts, driving the first push plate 513 to descend. At this time, the rollers 505 on the inner side of the clamping arms 503 on both sides lose the force of the inclined surface of the first push plate 513. Under the elastic action of the first tension spring 506, the clamping arms 503 on both sides are driven to move closer along the first slide rail 502, thereby squeezing the opening of the clamped packaging bag to facilitate subsequent bag opening.

[0029] Finally, the rotating shaft 803 at the inner end of the vacuum adsorption mechanism 8 rotates, driving the two sliding rods 805 to move in opposite directions via the transmission plate 804 and transmission rod 806. This causes the two vacuum suction cups 807 to approach and adhere to the bag opening, generating negative pressure and sticking tightly to the bag opening. Then, the rotating shaft 803 rotates in the opposite direction, causing the vacuum suction cups 807 to move away and open the bag opening, thus opening the bag. Finally, the vacuum suction cups 807 detach from the bag opening, and the rotating disk 4 rotates to move the opened bag to the next station for filling. After filling is complete, the rotating disk... 4. Rotate again to the subsequent station (such as the sealing station). At this time, the first telescopic device 514 extends and drives the first push plate 513 to rise. At this time, the rollers 505 on the inner side of the clamping arms 503 on both sides push the clamping arms 503 on both sides away from the first slide rail 502 under the force of the inclined surface of the first push plate 513, so that the first tension spring 506 undergoes elastic deformation, thereby closing the open bag mouth and facilitating sealing. After sealing, the rotating disk rotates to the push component station. The push component pushes the gripper to move, and the packaging bag falls off under the action of gravity, realizing automated packaging bag pulling and packaging operation.

[0030] The above description is a detailed description of the preferred embodiments of the present utility model. However, the embodiments are not intended to limit the scope of the patent application of the present utility model. All equivalent changes or modifications made under the technical spirit of the present utility model should fall within the patent scope covered by the present utility model.

Claims

1. A bag-pulling packaging apparatus for a packaging bag, characterized by: include, The rotating disk rotates horizontally and has multiple clamping components distributed around its bottom outer circumference for clamping packaging bags. A fixed plate is positioned above the rotating plate and has a pushing component on it for moving the clamping assembly to clamp and release the packaging bag; A vacuum adsorption mechanism is located at the outer end of the rotating disk and corresponds to any clamping component to open the clamped packaging bag. When the clamping component moves to the vacuum adsorption mechanism with the rotation of the rotating disk, the clamping component moves to squeeze the opening of the clamped packaging bag.

2. The bag-pulling packaging apparatus according to claim 1, wherein: It also includes a base and a support cylinder. The rotating disk and the fixed disk are arranged above the support cylinder. A driving device is also provided at the outer end of the base. The support cylinder is provided with a transmission mechanism for connecting the driving device and the rotating disk and realizing power transmission.

3. The bag-pulling packaging apparatus according to claim 1, wherein: Each of the aforementioned clamping components specifically includes, A support plate is fixed to the bottom of the rotating disk; The first slide rail is symmetrically arranged on both sides of the support plate and fixed to the bottom of the rotating disk; The clamping arm has one end slidably mounted on the first slide rail via the first slide block, and the other end extends to the outside of the rotating disk and is provided with a clamping claw. The first tension spring is connected between the clamping arms at both ends of the support plate; Rollers are positioned on the opposing surfaces of the two clamping arms and rotate in the up-down direction; The first push plate is set on the bottom of the support plate and moves up and down through the first telescopic device; The second slide rail is located on the side of the support plate; The second slide block, in conjunction with the second slide rail, slides and is fixed to the side of the first push plate to realize the up and down movement of the first push plate.

4. The bag-pulling packaging apparatus according to claim 3, wherein: The top side of the first push plate is inclined and keeps in contact with the roller. When the first push plate moves upward, it pushes the two clamping arms to move outward through the contact between the inclined surface and the roller. When the first push plate moves downward, the two clamping arms move inward through the tension of the first tension spring.

5. The bag-pulling packaging apparatus according to claim 3, wherein: The gripper includes a fixed gripper and a movable gripper. The fixed gripper is fixed to the inner side of the end of the gripping arm. One end of the movable gripper corresponds to the fixed gripper. The middle part of the movable gripper is rotatably mounted on the end of the gripping arm. A pull rod is provided at the other end of the movable gripper. A rotating arm is also provided at the other end of the pull rod. The middle part of the rotating arm is hinged to the gripping arm. One end of the rotating arm is hinged to the pull rod. A push rod is provided above the other end of the rotating arm. The push rod is in contact with the pushing component. A second tension spring connected to the fixed gripper is also provided below the connection end of the rotating arm and the pull rod.

6. The bag-pulling packaging apparatus according to claim 5, wherein: The pushing assembly includes a second telescopic device and a second push plate. The second telescopic device is fixed above the fixed plate and keeps its telescopic end facing outward from the fixed plate. One end of the second push plate is fixed to the telescopic end of the second telescopic device, and the other end of the second push plate is bent downward and contacts the push rod.

7. The bag-pulling packaging apparatus according to claim 1, wherein: The vacuum adsorption mechanism specifically includes, The housing is fixed to the support rod; Two sliding rods are distributed vertically throughout the box and slide in a straight line. A pivot is located between two sliding rods and is rotatably mounted on the housing; The transmission plate is fixed in the middle to the outer end of the rotating shaft, and has strip holes at both ends; Two transmission rods are fixed to the sides of two sliding rods and locked into the slots in the transmission plate; Two vacuum suction cups are respectively positioned on the same side below the two sliding rods and are kept facing each other.

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