A pre-suction device for increasing the time of vacuum extraction

Abstract

The utility model discloses an advance suction device of improving vacuumizing time, and the utility model relates to packaging technical field, including push head and frame, be provided with the bagging claw that props on the push head, be provided with the mouth of an envelope hot knife, fan and filter box on the frame, the frame is connected with the suction control pneumatic cylinder, the suction control pneumatic cylinder is connected with the push head between suction hose, let the push head through the bagging claw prop up the packaging bag that is equipped with finished product, then open fan, and the air passage passes through filter box, frame, suction control pneumatic cylinder and suction hose in proper order, and finally through the push head can directly to the packaging bag vacuumizing, let finished product and the packaging close adhesion to the push head when moving to the mouth of an envelope of the packaging bag that is equipped with finished product, can start vacuumizing, and the push head has basically completed vacuumizing action when pushing finished product to the mouth of an envelope, reduces waiting time, also further avoids the adverse factors that the machine operating speed is fast and vacuumizing time is short causes to make the package more beautiful.

Description

Technical Field

[0001] This utility model relates to the field of packaging technology, specifically to an advance suction device for improving vacuuming time. Background Technology

[0002] To ensure a tight seal between the finished product and the packaging bag, the packaging bag containing the finished product needs to be evacuated. Conventional machines push the roll of paper to the sealing point with a pusher head, and then evacuate the air from the bag to make the folded corners of the bag seal neat. However, when the machine runs at a higher speed, the vacuuming time of the bag is short, and it is easy to not vacuum completely, which may cause problems such as loose packaging. Therefore, this situation needs to be improved. In addition, in order to prevent dust and impurities from clogging the blower during vacuuming, a filter structure needs to be installed at the air inlet of the blower.

[0003] A search revealed that CN219687679U discloses a vacuum packaging machine. This machine allows for easy removal of the frame from the rectangular tube by simply turning the locking screw and pulling down the base plate. This facilitates cleaning the filter plate inside the frame and ensures its proper function. However, after removing the filter plate, although air extraction ceases, the fan's air inlet remains dustproof. Dust and impurities can still drift into the fan through the inlet, making it impossible to maintain dust protection while cleaning the filter plate. Therefore, improvements are needed to address this issue. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an advance suction device that improves vacuuming time, thus solving the problems existing in the prior art.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: an advance suction device for improving vacuuming time, comprising a pusher head and a frame, wherein the pusher head is provided with a bag-supporting claw, the frame is provided with a sealing hot knife, a fan and a filter box, a suction control cylinder is connected to the frame, a suction hose is connected between the suction control cylinder and the pusher head, the frame is connected to the filter box, and the filter box is connected to the air inlet of the fan.

[0006] Preferably, the suction hose is provided with a suction drag chain.

[0007] Preferably, the filter box includes a housing mounted on a frame, the right end of the housing is connected to the frame, the rear end of the housing is connected to the air inlet of the fan, the left end of the housing is connected to a fixing plate by screws, the fixing plate has an insertion slot, a filter plate is provided on the insertion slot, the right end of the fixing plate and the insertion slot are both fitted and connected to a baffle, and the rear side of the baffle is fitted to the inner wall of the housing, and the frame is provided with a moving component for moving the baffle left and right.

[0008] Preferably, a connecting cover is provided on the fixing plate, and the air inlet of the fan is located between the connecting cover and the filter plate.

[0009] Preferably, the movable component includes a conduit connected to the bottom right end of the baffle, the right end of the conduit penetrating the housing, a slide rod slidably connected inside the conduit, a spring connected to the conduit on the slide rod, the top of the slide rod slidably connected to a slide rail, and the slide rail being mounted on the housing, the slide rail having two through holes, a limiting rod inserted into one of the through holes on the slide rod, and a spring connected to the limiting rod.

[0010] Preferably, a handle is provided at the left end of the fixing plate.

[0011] This invention provides an advance suction device to improve vacuuming time. Compared with the prior art, it has the following advantages:

[0012] 1. This advanced suction device, which improves vacuuming time, allows the pusher head to lift the packaging bag containing the finished product through the bag support claws. Then, the blower is turned on, and the air path passes through the filter box, frame, suction control cylinder, and suction hose in sequence. Finally, the pusher head directly vacuums the packaging bag, ensuring a tight fit between the finished product and the packaging. Thus, vacuuming begins as the pusher head moves the packaging bag containing the finished product towards the sealing point. By the time the pusher head pushes the finished product to the sealing point, the vacuuming process is essentially complete, reducing waiting time and further avoiding the adverse effects caused by the machine's high operating speed and short vacuuming time, resulting in a more aesthetically pleasing sealed package.

[0013] 2. The pre-suction device that improves vacuuming time, when the fixed plate is pulled out to the left, the spring pushes the baffle to the left by its own elasticity, thus ensuring contact with the fixed plate and finally sealing the air inlet of the fan. Then, with the connecting cover, the filter plate and the insertion slot can be moved out of the filter box, preventing dust and impurities from entering the air inlet of the fan. Thus, when cleaning the filter plate, the fan can still be kept dustproof. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the filter box of this utility model;

[0016] Figure 3 This is a cross-sectional schematic diagram of the filter box of this utility model;

[0017] Figure 4 This is a schematic diagram of the mobile component of this utility model.

[0018] In the diagram: 1. Push head; 2. Frame; 3. Sealing knife; 4. Suction control cylinder; 5. Bag support claw; 6. Suction hose; 7. Fan; 8. Filter box; 81. Box body; 82. Fixing plate; 83. Insertion slot; 84. Filter plate; 85. Connecting cover; 86. Baffle; 87. Moving component; 871. Guide tube; 872. Slide rod; 873. Spring 1; 874. Slide rail; 875. Through hole; 876. Limit rod; 877. Spring 2; 9. Suction drag chain. Detailed Implementation

[0019] 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.

[0020] See Figures 1-4 This utility model provides the following two technical solutions:

[0021] First implementation: A pre-suction device for improving vacuuming time includes a pusher head 1 and a frame 2. The pusher head 1 is equipped with a bag-supporting claw 5 for opening the packaging bag. The frame 2 is equipped with a sealing hot knife 3, a fan 7, and a filter box 8. When moving to the sealing position, the sealing hot knife 3 is used to seal the bag. The frame 2 is connected to a suction control cylinder 4 through an internal cavity. A suction hose 6 is connected between the suction control cylinder 4 and the pusher head 1. The suction control cylinder 4 acts as an air circuit valve to control the vacuuming time. The frame 2 is connected to the filter box 8 through an internal cavity, and the filter box 8 is connected to the air inlet of the fan 7.

[0022] A suction drag chain 9 is provided on the suction hose 6. As the push head 1 moves back and forth, the suction hose 6 also needs to extend and retract back and forth. Therefore, the suction drag chain 9 can protect the internal suction hose 6. A support plate and a drive mechanism (not shown in the figure) are provided on the frame 2. The support plate is used to support the suction drag chain, and the drive mechanism is used to drive the push head 1 to move back and forth. This is the prior art.

[0023] The filter box 8 includes a box body 81 mounted on the frame 2. The right end of the box body 81 is connected to the frame 2, and the rear end of the box body 81 is connected to the air inlet of the fan 7. The left end of the box body 81 is connected to a fixing plate 82 by screws. A insertion slot 83 is inserted into the fixing plate 82. When it needs to be removed, it can be pulled upwards. The right end of the insertion slot 83 is lower to facilitate airflow. A filter plate 84 is provided on the insertion slot 83 for filtering dust and impurities during air extraction. Some of the dust and impurities adhere to the filter plate 84, and the other part falls into the insertion slot 83. The right ends of the fixing plate 82 and the insertion slot 83 are both connected to the baffle 86, and the rear side of the baffle 86 is attached to the inner wall of the box body 81. A moving component 87 for moving the baffle 86 left and right is provided on the frame 2.

[0024] When the fixed plate 82 moves to the left, in order to prevent external dust from entering the air inlet of the fan 7, a connecting cover 85 is provided on the fixed plate 82. The air inlet of the fan 7 is located between the connecting cover 85 and the filter plate 84. When the fixed plate 82 moves to the left, the connecting cover 85 can also block the left end of the housing 81 until the filter plate 84 can be moved to the left side of the air inlet of the fan 7. At this time, dust can be prevented by the filter plate 84.

[0025] The movable component 87 includes a conduit 871 connected to the bottom right end of the baffle 86. The right end of the conduit 871 penetrates the housing 81, guiding the conduit 871 and consequently the baffle 86. A slide rod 872 is slidably connected inside the conduit 871. A spring 873 connected to the conduit 871 is provided on the slide rod 872. The top of the slide rod 872 is slidably connected to a slide rail 874, which is located on the housing 81. The slide rail 874 has two through holes 875. A limiting rod 876 inserted into one of the through holes 875 is provided on the slide rod 872. The limiting rod 876 is connected to the slide rod 872 by a second spring 877. The limiting rod 876 is inserted into the through hole 875 at the right end. At this time, the slide rod 872 is located on the right side, so that the first spring 873 is not compressed. This avoids the problem of shortening the service life of the first spring 873 due to long-term compression when not in use. When in use, the limiting rod 876 is inserted into the through hole 875 at the left end. That is, the slide rod 872 needs to slide to the left along the slide rail 874 to compress the first spring 873. Then, the fixing plate 82 is moved to the left, and the baffle 86 can move to the left under the action of the first spring 873.

[0026] The second implementation differs from the first implementation in that a handle is provided at the left end of the fixing plate 82, making it easy to pull the fixing plate 82 out to the left.

[0027] Furthermore, all content not described in detail in this specification is existing technology known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used.

[0028] In use, push head 1 supports the packaging bag containing the finished product via the bag support claw 5. The finished product in this article is mainly roll paper. When push head 1 moves the packaging bag towards the sealing hot knife 3, the fan 7 is turned on. The air path passes through the filter box 8, the frame 2, the suction control cylinder 4, and the suction hose 6, and finally through push head 1 to directly vacuum the packaging bag, ensuring a tight fit between the finished product and the packaging. Thus, when push head 1 pushes the packaging bag containing the finished product towards the sealing point, vacuuming begins. Push head 1 basically completes the vacuuming action by pushing the finished product to the sealing point, reducing waiting time and further avoiding adverse factors caused by the machine's high operating speed and short vacuuming time, resulting in a more aesthetically pleasing seal. When it is necessary to remove and clean the filter plate 84, first pull down the limit rod 876, stretch the spring 877, and then pull the slide rod 872 to the left until the limit rod 876 is reached. Align the left through hole 875 with the guide tube 6, then release the limiting rod 876, causing the spring 877 to reset and drive the limiting rod 876 into the left through hole 875. This allows the slide rod 872 to move to the left within the guide tube 871, compressing the spring 873. At this point, remove the screws on the fixing plate 82. When the fixing plate 82 is pulled to the left, both the connecting cover 85 and the insertion slot 83 move to the left. When the filter plate 84 is located to the left of the air inlet of the fan 7, the connecting cover 85 detaches from the housing 81, thus preventing external dust and impurities from entering the air inlet of the fan 7. When the fixing plate 82 moves to the left, the baffle 86, pushed by the spring 873, adheres to the insertion slot 83 and the fixing plate 82. Thus, when the insertion slot 83 moves out of the housing 81, the baffle 86 can seal the air inlet of the fan 7, thereby maintaining dust prevention for the fan 7 when cleaning the filter plate 84.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pre-suction device for improving vacuuming time, characterized in that: It includes a pusher (1) and a frame (2). The pusher (1) is provided with a bag support claw (5). The frame (2) is provided with a sealing hot knife (3), a fan (7) and a filter box (8). The frame (2) is connected to a suction control cylinder (4). The suction control cylinder (4) and the pusher (1) are connected by a suction hose (6). The frame (2) is connected to the filter box (8), and the filter box (8) is connected to the air inlet of the fan (7).

2. The advance suction device for improving vacuuming time according to claim 1, characterized in that: The suction hose (6) is equipped with a suction drag chain (9).

3. The advance suction device for improving vacuuming time according to claim 1, characterized in that: The filter box (8) includes a box body (81) mounted on a frame (2). The right end of the box body (81) is connected to the frame (2), and the rear end of the box body (81) is connected to the air inlet of the fan (7). The left end of the box body (81) is connected to a fixing plate (82) by screws. A plug slot (83) is inserted into the fixing plate (82), and a filter plate (84) is provided on the plug slot (83). The right ends of the fixing plate (82) and the plug slot (83) are both connected to a baffle (86), and the rear side of the baffle (86) is attached to the inner wall of the box body (81). A moving component (87) for moving the baffle (86) left and right is provided on the frame (2).

4. The pre-suction device for improving vacuuming time according to claim 3, characterized in that: A connecting cover (85) is provided on the fixing plate (82), and the air inlet of the fan (7) is located between the connecting cover (85) and the filter plate (84).

5. The advance suction device for improving vacuuming time according to claim 3, characterized in that: The moving component (87) includes a conduit (871) connected to the bottom right end of the baffle (86). The right end of the conduit (871) passes through the housing (81). A slide rod (872) is slidably connected inside the conduit (871). A spring (873) connected to the conduit (871) is provided on the slide rod (872). The top of the slide rod (872) is slidably connected to a slide rail (874), and the slide rail (874) is provided on the housing (81). Two through holes (875) are provided on the slide rail (874). A limiting rod (876) inserted into one of the through holes (875) is provided on the slide rod (872), and a spring (877) connected to the limiting rod (876) and the slide rod (872) is provided.

6. The advance suction device for improving vacuuming time according to claim 3, characterized in that: A handle is provided at the left end of the fixing plate (82).

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