Mechanism for arranging bag corner pressing device on chute of packaging machine
By setting the mechanism design of the ramp and inclined rod in the packaging machine, the jaws and the bag angle movement are synchronized, and the bag mouth problem caused by the movement of the jaws and bag angles in the prior art is solved, and a more efficient and better quality packaging process is achieved.
Patent Information
- Application Number
- CN202520559015.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2035-03-27
AI Technical Summary
During the process of opening the plastic bag, the movement of the jaws and the corners of the existing packaging machines is not synchronized enough, which can easily lead to tear or uneven sealing of the bag, affecting the packaging quality.
A mechanism for setting the bag angle pressing device on the ramp is designed. Through the cooperation of the fixing plate, the moving plate, the driver and the suction nozzle, the jaws and the oblique rods are used to automatically approach or distance the jaws inward during the movement of the moving plate, thereby achieving synchronization with the bag angle movement.
This solution does not require additional cylinder drive, which reduces equipment costs, ensures the integrity and smoothness of the bag mouth, and avoids problems such as bag mouth tearing and sealing folds.
Smart Images
Figure CN222820345U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an inclined bag corner pressing device, in particular to a mechanism of a packaging machine for arranging the bag corner pressing device on an inclined road. Background Art
[0002] Packaging machine is a kind of equipment used for automatic packaging of products, which is widely used in food, medicine, chemical industry, daily necessities and other industries. It can improve production efficiency, reduce labor costs, and ensure the consistency and quality of packaging.
[0003] Packaging machines can be classified into filling machines, sealing machines, labeling machines, wrapping machines, etc. according to their functions. In the sealing machine, the plastic bag needs to be opened, filled and sealed. In the process of opening, the left, right, front and back sides of the plastic bag need to be clamped to fully open the plastic bag to the maximum extent, so that the material will not get stuck when entering the bag at a faster speed. Before the bag mouth is opened, the bag mouth can be regarded as two straight lines. After opening, the bag mouth will become a square. From closed to open, the width of the bag mouth will become smaller and the thickness will become larger. Because the plate on the back side remains stationary, the left and right bag corners need to move inward, and the clamping claws holding the bag corners need to move inward with the bag corners. In addition, when sealing is required, the left and right bag corners need to return to the position close to the fixed plate and move outward at the same time, so that the bag mouth can be well flattened and wrinkles will not be generated when sealing. In this process, the movement trajectory of the clamping claw should be consistent with the movement trajectory of the bag corner.
[0004] One solution currently is to actively move the gripper to drive the bag corner to follow the movement. The disadvantage is that the mechanism is complex and it is not easy to synchronize the opening of the bag mouth with the movement of the bag corner, because the opening of the bag mouth requires an additional driver, and the bag corner may require a pair of obliquely arranged cylinders or two pairs of horizontal and vertical cylinder groups. If the bag mouth opens quickly and the bag corner is not in place, or the bag corner is in place but the bag mouth does not open in a matching manner, it is easy to tear the plastic film, affecting the subsequent bagging of materials. Utility Model Content
[0005] In view of the deficiencies in the prior art, the utility model aims to provide a mechanism for arranging a bag corner pressing device on an inclined track of a packaging machine.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: including a fixed plate, a movable plate, a driver and a suction nozzle, the driver drives the movable plate to move in a direction close to and away from the fixed plate, the suction nozzle is respectively arranged on the fixed plate and the movable plate and is opposite to each other, including clamping claws and an inclined rod, the fixed plate is provided with an inclined track inclined to the moving direction of the movable plate and the inclined tracks are respectively located on both sides of the suction nozzle, one end of the inclined rod is slidably arranged on the inclined track, the clamping claw is arranged at the other end of the inclined rod and is located between the movable plate and the fixed plate, and the inclined rod constitutes a close state in which the clamping claws are close to each other when the movable plate and the fixed plate are away from each other and a distant state in which the clamping claws are away from each other when the movable plate and the fixed plate are close to each other.
[0007] By adopting the above technical scheme, when the plastic bag is placed between the fixed plate and the movable plate, the suction nozzle first sucks the front and rear sides of the plastic bag, and at the same time, the clamps clamp the left and right sides of the plastic bag, and then the driver drives the movable plate to move. At this time, the clamps are driven by the plastic bag and move in the direction away from the fixed plate. Since the ramp is arranged inclined to the moving direction of the movable plate, the clamps move toward each other in the process of moving away from the fixed plate, so that the two clamps approach each other, meeting the demand for opening the plastic bag, and there is no need to add additional cylinders, reducing the cost of the equipment. This scheme does not have an additional driving device to drive the movement of the clamps, and the clamps are installed on an inclined rod, which moves along the ramp. When the mouth of the plastic bag is open, the bag pressing mechanism on the movable plate presses the front side of the plastic bag, driving the plastic bag The front side of the plastic bag moves in the direction away from the fixed plate and continues to move forward. The front side of the plastic bag will drive the bag corner to move forward. The clamping claw clamps the bag corner and will move forward with the bag corner. The clamping claw is set on the inclined rod, so when it moves forward, it also moves inward. When the plastic bag is completely opened by the bag pressing mechanism on the moving plate, the plastic bag mouth becomes a square shape, which opens the bag mouth to the greatest extent and facilitates subsequent bagging. Similarly, when the moving plate returns to its position, the moving plate pushes the clamping claw to move in the direction close to the fixed plate. The clamping claw is set on the inclined rod. When returning to its position, it will move outward and reset at the same time, driving the bag corner to reset and flatten the bag mouth to facilitate the next step of sealing. Because there is only one driving source, it can better solve the problems of torn bag mouth, sealing wrinkles, and pulling and deformation of bag mouth plastic caused by the asynchronism between the suction nozzle and the clamping claw.
[0008] The utility model is further configured as follows: the fixing plate is provided with a receiving groove for the clamping claw and the receiving groove is arranged at the end of the ramp; the clamping claw and the inclined rod constitute a bag pressing angle device and are arranged on the ramp.
[0009] By adopting the above technical solution, when the movable plate approaches the fixed plate, the moving plate and the fixed plate are prevented from approaching each other due to the volume of the clamping claws themselves.
[0010] The utility model is further configured as follows: the suction nozzle is arranged obliquely to the moving direction of the moving plate.
[0011] By adopting the above technical solution, when the suction nozzle sucks the plastic strip, since the suction nozzle is not perpendicular to the plastic bag but at a certain angle, the suction nozzle will not completely fit the plastic bag when sucking. At this time, the part where the suction nozzle and the plastic bag are in contact has a strong suction force on the plastic bag, while the part where there is a space between the suction nozzle and the plastic bag has a weak suction force on the plastic bag, resulting in a force difference, similar to the action of sipping by human hands. Even if the inner side of the plastic bag is tightly combined, the plastic bag can be opened to ensure the normal subsequent packaging.
[0012] The utility model is further configured to include a nozzle moving cylinder, which is respectively arranged on the fixed plate and the movable plate and drives the nozzle to reciprocate along the moving direction of the movable plate.
[0013] By adopting the above technical solution, before opening the plastic, the nozzle moving cylinder drives the nozzle to approach the plastic bag. After the nozzle sucks the plastic bag, the nozzle moving cylinder drives the nozzle to move back to preliminarily open the plastic bag.
[0014] The utility model is further configured to include a fixed block, a locking block and a locking cylinder, which constitute a bag pressing mechanism. The fixed block is respectively arranged on the fixed plate and the movable plate, and the locking cylinder is respectively arranged on the fixed plate and the movable plate and drives the locking block to move in a direction close to and away from the fixed block.
[0015] By adopting the above technical solution, when the suction nozzle drives the plastic bag to move to both sides, the plastic bag enters between the fixed block and the locking block, and then the locking cylinder drives the locking block to move, thereby fixing the plastic bag. At this time, the suction nozzle no longer needs to provide suction.
[0016] The utility model is further configured as follows: a guide rod is arranged between the fixed plate and the movable plate, and the guide rod is arranged parallel to the moving direction of the movable plate. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0018] Figure 2 This is a schematic diagram of the structure of the utility model in which some components are omitted;
[0019] Figure 3 For this utility model Figure 2 A partial enlarged view of middle A;
[0020] Figure 4 This is a schematic diagram of the structure of the fixed plate of the utility model;
[0021] Figure 5 This is a schematic structural diagram of the utility model with a plastic bag from another perspective.
[0022] In the figure: 1. fixed plate; 11. ramp; 12. receiving groove; 2. movable plate; 3. driver; 4. suction nozzle; 5. clamping claw; 6. inclined rod; 7. suction nozzle moving cylinder; 8. fixed block; 81. locking block; 82. locking cylinder; 9. guide rod. DETAILED DESCRIPTION
[0023] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0025] like Figure 1-5As shown, the utility model discloses a mechanism for setting a bag pressing angle device on a ramp of a packaging machine, comprising a fixed plate 1, a movable plate 2, a driver 3 and a suction nozzle 4, wherein the driver 3 drives the movable plate 2 to move in a direction close to and away from the fixed plate 1, and the suction nozzle 4 is respectively arranged on the fixed plate 1 and the movable plate 2 and is opposite to each other, and comprises a clamping claw 5 and an inclined rod 6, a ramp 11 arranged obliquely with respect to the moving direction of the movable plate 2 is arranged on the fixed plate 1, and the ramp 11 is respectively located on both sides of the suction nozzle 4, one end of the inclined rod 6 is slidably arranged on the ramp 11, the clamping claw 5 is arranged at the other end of the inclined rod 6 and is located between the movable plate 2 and the fixed plate 1, and the inclined rod 6 constitutes When the movable plate 2 and the fixed plate 1 are separated, the clamping jaws 5 are in a close state when they are close to each other, and when the movable plate 2 and the fixed plate 1 are close to each other, the clamping jaws 5 are in a far away state when the movable plate 2 and the fixed plate 1 are separated. When the plastic bag is put between the fixed plate 1 and the movable plate 2, the front and rear sides of the plastic bag are first sucked by the suction nozzle 4. At the same time, the clamping jaws 5 clamp the left and right sides of the plastic bag. Then the driver 3 drives the movable plate 2 to move. At this time, the clamping jaws 5 are driven by the plastic bag to move away from the fixed plate 1. Since the ramp 11 is arranged obliquely to the moving direction of the movable plate 2, the clamping jaws 5 move toward each other in the process of moving away from the fixed plate 1, so that the two The clamping jaws 5 are close to each other, which meets the requirement of opening the plastic bag, and there is no need to add an additional cylinder, which reduces the cost of the equipment. This solution does not have an additional driving device to drive the movement of the clamping jaws 5, and the clamping jaws 5 are arranged on an inclined rod 6, and the inclined rod 6 moves along the ramp 11. When the mouth of the plastic bag is opened, the bag pressing mechanism on the moving plate 2 presses the front side of the plastic bag, driving the front side of the plastic bag to move away from the fixed plate 1, and continuing to move forward, the front side of the plastic bag will drive the bag corner to move forward, and the clamping jaws 5 clamp the bag corner so that they will move forward with the bag corner. The clamping jaws 5 are arranged on the inclined rod 6, so when moving forward, they move inward at the same time. When the plastic bag is completely opened by the bag pressing mechanism on the movable plate 2, the plastic bag mouth becomes a square shape, which opens the bag mouth to the greatest extent and facilitates the subsequent bagging. Similarly, when the movable plate 2 returns to its original position, the movable plate 2 pushes the clamping jaws 5 to move in the direction close to the fixed plate 1. The clamping jaws 5 are arranged on the inclined rod 6. When returning to their original position, they will move outward and reset at the same time, driving the bag corners to reset and flatten the bag mouth to facilitate the next step of sealing. Because there is only one driving source, it is better to solve the problems of tearing the bag mouth, wrinkling the sealing, and pulling and deformation of the plastic at the bag mouth caused by the asynchronism between the suction nozzle 4 and the clamping jaws 5.
[0026] The fixed plate 1 is provided with a receiving groove 12 for the clamping jaw 5 and the receiving groove 12 is arranged at the end of the ramp 11. The clamping jaw 5 and the inclined rod 6 constitute a bag pressing angle device and are arranged on the ramp 11. When the movable plate 2 approaches the fixed plate 1, the clamping jaw 5 is prevented from affecting the approach of the movable plate 2 and the fixed plate 1 due to its own volume.
[0027] The suction nozzle 4 is arranged obliquely to the moving direction of the movable plate 2. When the suction nozzle 4 sucks the plastic strip, since the suction nozzle 4 is not perpendicular to the plastic bag but at a certain angle, the suction nozzle 4 will not completely fit the plastic bag when sucking. At this time, the part where the suction nozzle 4 fits the plastic bag has a strong suction force on the plastic bag, while the part where there is a space between the suction nozzle 4 and the plastic bag has a weak suction force on the plastic bag, resulting in a force difference, which is similar to the action of sipping by human hands. Even if the inner side of the plastic bag is tightly combined, the plastic bag can be opened to ensure the normal subsequent packaging.
[0028] It also includes a nozzle moving cylinder 7, which is respectively arranged on the fixed plate 1 and the movable plate 2 and drives the nozzle 4 to move back and forth along the moving direction of the movable plate 2. Before opening the plastic, the nozzle moving cylinder 7 drives the nozzle 4 to approach the plastic bag. After the nozzle 4 sucks the plastic bag, the nozzle moving cylinder 7 drives the nozzle 4 to move back to perform a preliminary opening on the plastic bag.
[0029] It also includes a fixed block 8, a locking block 81 and a locking cylinder 82. The fixed block 8 is respectively arranged on the fixed plate 1 and the movable plate 2. The locking cylinder 82 is respectively arranged on the fixed plate 1 and the movable plate 2 and drives the locking block 81 to move in the direction close to and away from the fixed block 8. When the suction nozzle 4 drives the plastic bag to move to both sides, the plastic bag enters between the fixed block 8 and the locking block 81, and then the locking cylinder 82 drives the locking block 81 to move, thereby fixing the plastic bag. At this time, the suction nozzle 4 no longer needs to provide suction.
[0030] A guide rod 9 is provided between the fixed plate 1 and the movable plate 2 and is arranged parallel to the moving direction of the movable plate 2 .
[0031] Working process: when the plastic bag is put between the fixed plate 1 and the movable plate 2, the suction nozzle moving cylinder 7 first drives the suction nozzle 4 to approach the plastic bag. After the suction nozzle 4 sucks the plastic bag, the suction nozzle moving cylinder 7 drives the suction nozzle 4 to move back to preliminarily open the plastic bag. At this time, the plastic bag enters between the fixed block 8 and the locking block 81, and then the locking cylinder 82 drives the locking block 81 to move, so as to fix the plastic bag. At this time, the suction nozzle 4 no longer needs to provide suction. At the same time, the clamping jaws 5 clamp the left and right sides of the plastic bag, and then the driver 3 drives the movable plate 2 to move. At this time, the clamping jaws 5 are driven by the plastic bag to move in the direction away from the fixed plate 1, and because the ramp 11 is arranged at an angle to the moving direction of the movable plate 2, the clamping jaws 5 move toward each other in the process of moving away from the fixed plate 1, so that the two clamping jaws 5 are close to each other, meeting the requirement of opening the plastic bag.
Claims
1. A mechanism for arranging a bag corner pressing device on a ramp of a packaging machine, comprising a fixed plate (1), a movable plate (2), a driver (3) and a suction nozzle (4), wherein the driver (3) drives the movable plate (2) to move in a direction approaching and away from the fixed plate (1), and the suction nozzle (4) is respectively arranged on the fixed plate (1) and the movable plate (2) and is opposite to each other, characterized in that: The invention comprises a clamping jaw (5) and an inclined rod (6); a ramp (11) is arranged on the fixed plate (1) and is arranged obliquely with respect to the moving direction of the movable plate (2), and the ramps (11) are respectively located on both sides of the suction nozzle (4); one end of the inclined rod (6) is slidably arranged on the ramp (11); the clamping jaw (5) is arranged at the other end of the inclined rod (6) and is located between the movable plate (2) and the fixed plate (1); the inclined rod (6) forms a close state in which the clamping jaws (5) are close to each other when the movable plate (2) and the fixed plate (1) are far away from each other, and a far state in which the clamping jaws (5) are far away from each other when the movable plate (2) and the fixed plate (1) are close to each other.
2. The mechanism for arranging the bag corner pressing device on the ramp of a packaging machine according to claim 1, characterized in that: The fixing plate (1) is provided with a receiving groove (12) for the clamping claw (5), and the receiving groove (12) is arranged at the end of the inclined path (11). The clamping claw (5) and the inclined rod (6) constitute a bag corner pressing device and are arranged on the inclined path (11).
3. The mechanism for arranging the bag corner pressing device on the ramp of a packaging machine according to claim 1, characterized in that: The suction nozzle (4) is arranged to be inclined with respect to the moving direction of the moving plate (2).
4. The mechanism for arranging the bag corner pressing device on the ramp of a packaging machine according to claim 3, characterized in that: It also includes a nozzle moving cylinder (7), which is respectively arranged on the fixed plate (1) and the movable plate (2) and drives the nozzle (4) to move back and forth along the moving direction of the movable plate (2).
5. The mechanism for arranging the bag corner pressing device on the ramp of a packaging machine according to claim 4, characterized in that: It also comprises a fixed block (8), a locking block (81) and a locking cylinder (82); the fixed block (8) is respectively arranged on the fixed plate (1) and the movable plate (2); the locking cylinder (82) is respectively arranged on the fixed plate (1) and the movable plate (2) and drives the locking block (81) to move in a direction approaching or moving away from the fixed block (8).
6. The mechanism for arranging the bag corner pressing device on the ramp of a packaging machine according to claim 1, characterized in that: A guide rod (9) is provided between the fixed plate (1) and the movable plate (2), and the guide rod (9) is arranged parallel to the moving direction of the movable plate (2).