Packaging bag processing equipment and gluing mechanism thereof

Abstract

The utility model discloses packaging bag processing equipment and an improvement of a gluing mechanism of the packaging bag processing equipment. The packaging bag processing equipment comprises a rack, a glue solution extrusion part, a detector and a driving part for driving the glue solution extrusion part to transversely move on the rack, the glue solution extrusion part comprises an extrusion die nozzle; the detector and the glue solution extrusion part synchronously and transversely move, the detector, the glue solution extrusion part and the driving part are all connected with the controller, the detector sends collected base material edge information to the controller, and the controller sends an instruction to the driving part according to the received base material edge information. According to base material edge information collected by the detector, the glue solution extruded by the glue solution extrusion part is accurately coated on the base material, the gluing position is accurate, the base material is quickly and firmly bonded, heating and shaping are not needed, and the glue solution coating device is suitable for paper base materials and film base materials.

Description

Technical Field

[0001] This utility model relates to an improved invention of packaging bag processing equipment, and in particular to an adhesive application mechanism of packaging bag processing equipment. Background Technology

[0002] Packaging bags come in paper and film varieties, with rolls of material as the base material. The processing of packaging bags begins with forming the bag into a tube. The base material is wrapped from below to above a forming template, with both sides of the base material overlapping the template and one side over the other, creating a stacked and sealed (laminated) tube. Sealing the sides of paper base materials primarily uses adhesive lamination, while lamination of film base materials mainly uses heat sealing. Heat sealing requires a certain heating time, resulting in slow speed and low efficiency. Paper base materials typically use water-based or white glue, applied before forming the tube and then heated and dried after lamination, which cannot meet the sealing requirements of film base materials. Summary of the Invention

[0003] In view of the technical problems existing in the background art, the technical problem to be solved by this utility model is to provide an adhesive application mechanism suitable for film substrate packaging bag processing equipment.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: the gluing mechanism of the packaging bag processing equipment is characterized by including a frame, a glue extrusion component, a detector, and a driving component for driving the glue extrusion component to move laterally on the frame;

[0005] The adhesive extrusion component includes an extrusion nozzle;

[0006] The detector moves laterally synchronously with the adhesive extrusion component. The detector, adhesive extrusion component, and drive component are all connected to the controller. The detector collects substrate edge information and sends it to the controller. The controller sends instructions to the drive component based on the received substrate edge information.

[0007] This invention uses the substrate edge information collected by the detector to accurately coat the adhesive extruded by the adhesive extrusion component onto the substrate. The precise application position allows the substrate to be quickly and firmly bonded without the need for heat setting, making it suitable for paper and film substrates.

[0008] Preferably, the substrate covers the outside of the molding template, and the two sides of the substrate cover the top of the molding template. The two sides of the substrate are a first side and a second side, respectively, and the first side of the substrate overlaps the second side. The extrusion nozzle is placed between the first side and the second side of the substrate, and the detector collects edge information of the first side of the substrate.

[0009] The substrate is glued before sealing, and the glue application position is close to the sealing position to improve the adhesion and sealing effect; in addition, the detector collects edge information of the first side of the substrate more accurately, making the glue application position more precise.

[0010] Preferably, the detector is a groove-shaped photoelectric sensor with a groove for the edge of the substrate to enter. This facilitates the acquisition of substrate edge information and ensures accurate information acquisition.

[0011] Preferably, the adhesive extrusion component includes a barrel, an extrusion screw, an extrusion die, and a motor for driving the extrusion screw. The extrusion screw is disposed inside the barrel, with a feed inlet at one end and a discharge outlet at the other end. The discharge outlet is connected to the extrusion die, and the extrusion nozzle is connected to the extrusion die. The extrusion screw compresses and conveys the material in the barrel towards the discharge outlet. During the compression and conveying process, the material solution forms a viscous adhesive, which is ultimately extruded from the extrusion nozzle of the extrusion die. The freshly extruded adhesive has excellent flowability, resulting in less adhesive used for the same sealing area, lower cost, and better adhesion.

[0012] Preferably, the extrusion nozzles are provided in a plurality of longitudinally arranged, and the plurality of extrusion nozzles are arranged evenly in a transverse direction;

[0013] The extrusion die is flat and extends longitudinally. The low height of the extrusion die and nozzle results in a small drop on both sides of the substrate, allowing the substrate to quickly enter the sealing process after adhesive application, thus improving the sealing effect.

[0014] Preferably, the frame is provided with a first guide rail, which is arranged laterally, and the adhesive extrusion component includes a base, which is slidably disposed on the first guide rail;

[0015] A reset sensor is provided on the frame, and the reset sensor is connected to the controller;

[0016] When the adhesive extrusion component is reset, the reset sensor collects the position information of the adhesive extrusion component and sends it to the controller, which then sends a command to the drive component.

[0017] Preferably, a critical sensor is provided on the frame, and the critical sensor is connected to the controller;

[0018] The critical sensor collects the position information of the adhesive extrusion component and sends it to the controller, which then sends a command to the drive component. The reset sensor and critical sensor limit the maximum lateral position of the adhesive extrusion component on the frame, improving operational safety and preventing safety issues such as the adhesive extrusion component moving beyond its range and detaching from the frame or occupying operating space.

[0019] Preferably, the frame is provided with a second guide rail arranged horizontally, and the reset sensor is slidably disposed on the second guide rail to adjust the horizontal position of the reset sensor on the frame.

[0020] The critical sensor is slidably mounted on the second guide rail, and its lateral position on the frame is adjusted.

[0021] Depending on the actual operating environment, the range of movement of the adhesive extrusion component on the frame is adjusted by resetting the sensor and adjusting the lateral position of the critical sensor.

[0022] Two sets of reset sensors and two sets of critical sensors are provided. This dual protection enhances safety.

[0023] A packaging bag processing equipment, characterized in that: it includes a forming template and a gluing mechanism, wherein the gluing mechanism includes a frame, a glue extrusion component, a detector and a driving component for driving the glue extrusion component to move laterally on the frame;

[0024] The detector moves laterally synchronously with the adhesive extrusion component. The detector, adhesive extrusion component, and drive component are all connected to the controller. The detector collects substrate edge information and sends it to the controller. The controller sends instructions to the drive component based on the received substrate edge information.

[0025] The adhesive extrusion component includes an extrusion die head, which is provided with an extrusion nozzle. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the adhesive application process for this utility model.

[0027] Figure 2 This is a schematic diagram during the preparation of this utility model.

[0028] Figure 3 This is a top view of the present invention.

[0029] Figure 4 This is a schematic diagram of the substrate after adhesive has been applied.

[0030] Reference numerals: 1. First side; 2. Second side; 3. Groove; 4. Detector; 5. Extrusion die head; 6. Extrusion nozzle; 7. Barrel; 8. Extrusion screw; 9. Forming template; 10. First guide rail; 11. Critical sensor; 12. Base; 13. Drive belt; 14. Second guide rail; 15. Reset sensor; 16. Adhesive liquid; 17. Substrate; 18. Hopper; 19. Frame. Detailed Implementation

[0031] The following description, in conjunction with the accompanying drawings, details the embodiments and working principles of this utility model. The substrate is conveyed longitudinally, with the conveying direction being forward.

[0032] The gluing mechanism of this type of packaging bag processing equipment includes a frame 19, an adhesive extrusion component, a detector 4, and a drive component that drives the adhesive extrusion component to move laterally on the frame 19. The adhesive extrusion component includes an extrusion nozzle 6. The detector 4 moves laterally synchronously with the adhesive extrusion component and can be mounted on the adhesive extrusion component. The detector 4, the adhesive extrusion component, and the drive component are all connected to a controller. The detector 4 collects edge information of the substrate 17 and sends it to the controller. The controller sends instructions to the drive component based on the received edge information of the substrate 17. Specifically, the detector 4 collects edge information of the substrate 17 in real time to accurately determine the gluing position of the substrate 17. The controller sends instructions to the drive component based on the edge information of the substrate 17 collected by the detector 4. If the detected edge of the substrate 17 is shifted to the left, the drive component drives the adhesive extrusion component to move to the left; if the edge of the substrate 17 is shifted to the right, the drive component drives the adhesive extrusion component to move to the right, so that the adhesive 16 extruded by the adhesive extrusion component is accurately coated on the substrate 17, ensuring accurate gluing position and avoiding glue misalignment that could cause the two bag surfaces to stick together.

[0033] The adhesive extrusion component includes a barrel 7, an extrusion screw 8, an extrusion die 5, and a motor that drives the extrusion screw 8 to rotate. The extrusion screw 8 is disposed inside the barrel 7. One end of the barrel 7 is provided with a feed port. To facilitate feeding, a hopper 18 is installed at the feed port to add plastic granules into the hopper 18. The other end of the barrel 7 is provided with a discharge port, which is connected to the extrusion die 5. The extrusion nozzle 6 is connected to the extrusion die 5. The motor drives the extrusion screw 8 to rotate, which causes the material in the barrel 7 to be extruded and conveyed to the outlet. During the extrusion and conveying process, the material is extruded and melted, and the barrel 7 can also be heated to accelerate the melting effect. The melted material becomes a liquid adhesive 16 and is extruded from the extrusion die 6 of the extrusion die 5. The freshly extruded liquid adhesive 16 has good fluidity, and the amount of adhesive used for the same sealing area is less, resulting in lower cost and better adhesion. This allows the substrate 17 to be quickly and firmly bonded, and there is no need to heat and shape the substrate 17. It is suitable for paper substrates 17 and film substrates 17.

[0034] To ensure stable movement of the adhesive extrusion component, a first guide rail 10 is provided on the frame 19. The first guide rail 10 is arranged laterally. The adhesive extrusion component includes a base 12, which is slidably mounted on the first guide rail 10. The material cylinder 7 is mounted on the base 12. The movement of the base 12 on the first guide rail 10 can be driven by a transmission belt, a lead screw mechanism, etc. In the attached diagram, the driving device includes a transmission belt 13, a transmission wheel, and a motor that drives the transmission wheel to rotate. The base 12 of the adhesive extrusion component is connected to the transmission belt 13. When the motor rotates forward, the transmission wheel drives the transmission belt 13 to rotate clockwise, and the adhesive extrusion component moves to the left. When the motor rotates in reverse, the transmission wheel drives the transmission belt 13 to rotate counterclockwise, and the adhesive extrusion component moves to the right. To improve operational safety, a reset sensor 15 is provided on the frame 19, and the reset sensor 15 is connected to the controller. After the adhesive is applied, the drive unit drives the adhesive extrusion component to move to the right and then resets. When the reset sensor 15 detects the adhesive extrusion component and sends the data to the controller, the controller sends a command to the drive unit, which then stops driving, and the adhesive extrusion component stops moving. A critical sensor 11 is installed on the frame 19 and is connected to the controller. The critical sensor 11 detects the adhesive extrusion component and sends the data to the controller, which then sends a command to the drive unit. When the adhesive extrusion component is operating, the drive unit drives it to move to the left. When the detector 4 detects the edge of the substrate 17, the controller sends a command to the drive unit, and the adhesive extrusion component stops moving. During continuous operation, the adhesive extrusion component moves accordingly based on the information collected by the detector 4. If the critical sensor 11 detects the adhesive extrusion component during this process, it indicates that the adhesive extrusion component has reached a critical point, and the controller sends a command to the drive unit, stopping the adhesive extrusion component from moving to the left. The reset sensor 15 and critical sensor 11 limit the maximum lateral movement range of the adhesive extrusion component on the frame 19, improving operational safety and preventing safety issues such as the adhesive extrusion component moving beyond its range and detaching from the frame 19 or occupying operating space. Due to varying actual operating environments, the lateral movement range of the adhesive extrusion component on the frame 19 may differ. To adapt to different operating environments, the frame 19 is equipped with a laterally positioned second guide rail 14. The reset sensor 15 and critical sensor 11 are slidably mounted on the second guide rail 14. Adjusting the lateral position of the reset sensor 15 and critical sensor 11 on the frame 19, i.e., according to the actual operating environment, adjusts the movement range of the adhesive extrusion component on the frame 19 by moving the reset sensor 15 on the second guide rail 14 and adjusting the lateral position of the critical sensor 11. It is preferable to have two sets of both the reset sensor 15 and critical sensor 11 for dual protection. When one sensor malfunctions, the other adjacent sensor will still detect the position of the adhesive extrusion component, thus improving safety.

[0035] The substrate 17 covers the outside of the molding template 9, with both sides of the substrate 17 covering the top of the molding template 9. The two sides of the substrate 17 are a first side 1 and a second side 2, respectively, and the first side 1 of the substrate 17 overlaps the second side 2. The detector 4 collects the edge information of the first side 1 of the substrate 17. At this time, the substrate 17 on the molding template 9 is gradually formed and enters the composite state. The extrusion nozzle 6 is placed between the first side 1 and the second side 2 of the substrate 17, that is, before the composite process. (See attached image) Figure 3 The extrusion nozzles 6 are provided in a plurality of longitudinally arranged components, and the plurality of extrusion nozzles 6 are evenly arranged laterally. The extrusion head 5 is flat and extends longitudinally, so that the height of the extrusion head 5 and the extrusion nozzles 6 is low, which facilitates penetration between the two sides of the substrate 17. After the substrate 17 is coated with adhesive, its two sides can quickly enter for sealing, improving the sealing effect. The detector 4 is a groove-shaped photoelectric eye, which has a groove 3 for the edge of the substrate 17 to enter, which facilitates the collection of edge information of the substrate 17, and the detector 4 collects edge information of the first side 1 of the substrate 17 more accurately.

[0036] A packaging bag processing device includes a forming template 9 and an adhesive applicator. A substrate 17 enters from below the forming template 9 and folds upwards along both sides of the template, overlapping it. The first side 1 of the substrate 17 is above the second side 2. The vertical overlap between the two constitutes the sealed portion of the packaging bag. The edge of the first side 1 is within the groove 3 of the slotted photoelectric sensor. Adhesive 16 extruded from the extrusion nozzle 6 is applied to the upper part of the second side 2 of the substrate 17. As the substrate 17 is pulled forward, the first side 1 and the adhesive-applied second side 2 gradually approach each other until they are completely bonded together, achieving a seal. This invention provides precise adhesive application, enabling rapid and firm bonding of the first side 1 and the second side 2 of the substrate 17, without the need for heat setting. It is suitable for both paper substrates 17 and film substrates 17.

Claims

1. A gluing mechanism for a packaging bag processing equipment, characterized in that: It includes a frame, a glue extrusion component, a detector, and a drive component that drives the glue extrusion component to move laterally on the frame; The adhesive extrusion component includes an extrusion nozzle; The detector moves laterally synchronously with the adhesive extrusion component. The detector, adhesive extrusion component, and drive component are all connected to the controller. The detector collects substrate edge information and sends it to the controller. The controller sends instructions to the drive component based on the received substrate edge information.

2. The gluing mechanism of the packaging bag processing equipment according to claim 1, characterized in that: The substrate is covered outside the molding template, and the two sides of the substrate are covered above the molding template. The two sides of the substrate are the first side and the second side, and the first side of the substrate overlaps the second side. The extrusion nozzle is placed between the first side and the second side of the substrate, and the detector collects the edge information of the first side of the substrate.

3. The gluing mechanism of the packaging bag processing equipment according to claim 2, characterized in that: The detector is a groove-shaped photoelectric eye, which has a groove for the edge of the substrate to enter.

4. The gluing mechanism of the packaging bag processing equipment according to claim 1, characterized in that: The adhesive extrusion component includes a barrel, an extrusion screw, an extrusion die, and a motor that drives the extrusion screw to rotate. The extrusion screw is disposed inside the barrel. One end of the barrel has a feed port, and the other end of the barrel has a discharge port. The discharge port is connected to the extrusion die, and the extrusion nozzle is connected to the extrusion die.

5. The gluing mechanism of the packaging bag processing equipment according to claim 4, characterized in that: The extrusion nozzles are provided in a plurality of longitudinally arranged, and the plurality of extrusion nozzles are arranged evenly in a transverse direction. The extrusion die is flat and extends longitudinally.

6. The gluing mechanism of the packaging bag processing equipment according to claim 1, characterized in that: The frame is provided with a first guide rail, which is arranged horizontally. The adhesive extrusion component includes a base, which is slidably disposed on the first guide rail. A reset sensor is provided on the frame, and the reset sensor is connected to the controller; When the adhesive extrusion component is reset, the reset sensor collects the position information of the adhesive extrusion component and sends it to the controller, which then sends a command to the drive component.

7. The gluing mechanism of the packaging bag processing equipment according to claim 6, characterized in that: A critical sensor is installed on the frame, and the critical sensor is connected to the controller. The critical sensor collects the position information of the adhesive extrusion component and sends it to the controller, which then sends instructions to the drive component.

8. The gluing mechanism of the packaging bag processing equipment according to claim 7, characterized in that: The frame is provided with a second guide rail arranged horizontally, and the reset sensor is slidably mounted on the second guide rail to adjust the horizontal position of the reset sensor on the frame. The critical sensor is slidably mounted on the second guide rail, and its lateral position on the frame is adjusted.

9. The gluing mechanism of the packaging bag processing equipment according to claim 8, characterized in that: Two sets of reset sensors are provided; two sets of critical sensors are provided.

10. A packaging bag processing equipment, characterized in that: It includes a molding template and an adhesive application mechanism according to any one of claims 1-8.

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