Woven bag sealing device

Abstract

The utility model relates to the technical field of woven bag processing, and discloses a woven bag sealing device which comprises a base, a supporting frame is installed on the upper surface of the base, a connecting plate is arranged at the lower end of the supporting frame, a heat sealing piece is installed on the lower surface of the connecting plate, a lifting assembly is arranged at the upper end of the connecting plate, and a driving assembly is arranged at the upper end of the supporting frame. A through opening is formed in the upper surface of the connecting plate, a shell is slidably connected into the through opening, a cutting knife is installed on the lower surface of the shell and located in the through opening, a connecting frame is installed on the upper surface of the connecting plate, a through hole is formed in the upper surface of the connecting frame, a sliding rod is slidably connected into the through hole, and one end of the sliding rod is installed on the upper surface of the shell. A pressing plate is installed at the other end of the sliding rod. The cutting knife independently slides through the sliding rod, and the situation that the cutting knife firstly makes contact with a woven bag, a heat sealing piece is not completely pressed, a sealing opening is not completely welded in the cutting process, and then the sealing opening is not firm or torn is avoided.

Description

Technical Field

[0001] This utility model relates to the field of woven bag processing technology, specifically a woven bag sealing device. Background Technology

[0002] Woven bags, also known as snakeskin bags, are a type of plastic bag used for packaging. Woven bags are generally white or off-white in color. After the items are placed inside the woven bag, the opening needs to be heat-sealed.

[0003] The utility model patent application with publication number "CN220594246U" discloses a quick sealing device for woven bags, mainly composed of a base, support frame, hydraulic telescopic rod, mounting component, heat sealing component, spring, pressing block, and cutting device. This technical solution aims to avoid uneven residue when sealing woven bags. The woven bag is placed on the upper surface of the base. When the hydraulic telescopic rod extends and the mounting component presses down, the heat sealing component seals the edges of the woven bag. Simultaneously, a cutting blade at the bottom of the mounting component cuts off any remaining residue. A collection cover fixedly connected to one side of the mounting component collects waste material, which enters the conveyor through a telescopic tube. A fan inside the conveyor blows air into the connecting tube, causing the air to move upwards within the telescopic tube. This allows the waste material to enter the connecting tube and be transported to the collection box for collection.

[0004] The quick sealing device for woven bags disclosed in the aforementioned document has the following defects: When the hydraulic telescopic rod extends and the mounting component is pressed down, the heat sealing component seals the edge of the woven bag. At the same time, the cutting blade at the bottom of the mounting component cuts the remaining portion of the woven bag. However, both the cutting blade and the heat sealing component are fixedly installed at the bottom of the mounting component. If the cutting blade contacts the woven bag first and the heat sealing component is not fully pressed, the seal may not be fully fused during cutting, resulting in an insecure seal or tearing. Utility Model Content

[0005] The purpose of this utility model is to provide a woven bag sealing device that solves the problem that in existing woven bag sealing devices, the cutting blade contacts the woven bag first while the heat sealing component is not fully pressed together, resulting in incomplete fusion of the seal during cutting, which in turn causes the seal to be weak or torn.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a woven bag sealing device, comprising a base, a support frame mounted on the upper surface of the base, a connecting plate at the lower end of the support frame, a heat sealing element mounted on the lower surface of the connecting plate, a lifting assembly at the upper end of the connecting plate, a driving assembly at the upper end of the support frame, an opening on the upper surface of the connecting plate, a housing slidably connected inside the opening, a cutting blade mounted on the lower surface of the housing, the cutting blade being located inside the opening, a connecting bracket mounted on the upper surface of the connecting plate, a through hole on the upper surface of the connecting bracket, a sliding rod slidably connected inside the through hole, one end of the sliding rod being mounted on the upper surface of the housing, and a pressing plate being mounted on the other end of the sliding rod.

[0008] Furthermore, a spring is fitted onto the outer surface of the slide rod, with one end of the spring mounted on the upper surface of the connecting frame and the other end mounted on the lower surface of the pressing plate.

[0009] Furthermore, the lifting assembly includes a rack, the upper surface of the support frame has a mounting hole, the rack is slidably connected inside the mounting hole, and one end of the rack is mounted on the upper surface of the connecting frame.

[0010] Furthermore, two connecting seats are installed on the upper surface of the support frame, and a connecting shaft is rotatably connected between the two connecting seats. A gear is installed on the outer surface of the connecting shaft, and the gear meshes with a rack.

[0011] Furthermore, the drive assembly includes a drive motor, a support plate is provided on the outer surface of the support frame, the drive motor is mounted on the upper surface of the support plate, a drive wheel is mounted on the output end of the drive motor, a driven wheel is mounted on one end of the connecting shaft, and the drive wheel is connected to the driven wheel via a belt.

[0012] Furthermore, a flow guide groove is provided at one end of the base, the cutting blade is located inside the flow guide groove, and a support leg is installed on the lower surface of the base.

[0013] This utility model has the following beneficial effects:

[0014] (1) In this utility model, the operator pushes the pressing plate downward by hand or mechanical device, so that it slides downward along the axis of the slide rod. At the same time, the spring gradually contracts, so that the slide rod drives the outer shell and the cutting blade to move downward in the opening, so that the cutting blade extends out of the opening, contacts and cuts the woven bag. After the woven bag is cut, the force on the pressing plate is removed, so that the spring gradually recovers its elasticity, pushes the pressing plate and the slide rod upward, and drives the cutting blade back into the opening. The cutting blade only extends when pressing and automatically retracts when not in operation, which avoids the cutting blade contacting the woven bag first and the heat seal not being fully pressed, resulting in the seal not being fully fused during cutting, which in turn causes the seal to be weak or torn.

[0015] (2) When the cutting knife of this utility model cuts woven bags, it will produce scraps or debris. The guide groove is located directly below the cutting knife, which can directly guide the waste into the designated area to ensure that the cut waste slides out smoothly and avoids getting tangled on the blade.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present utility model. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the overall structure of the present utility model. Figure 2 ;

[0020] Figure 3 This is a partial structural diagram of the present invention;

[0021] Figure 4 This is a partial structural cross-sectional view of the present invention;

[0022] The attached diagram lists the components represented by each number as follows:

[0023] In the diagram: 1. Base; 101. Guide channel; 102. Support leg; 2. Support frame; 201. Support plate; 3. Connecting plate; 4. Heat seal; 501. Rack; 502. Connecting seat; 503. Connecting shaft; 504. Gear; 601. Drive motor; 602. Drive wheel; 603. Driven wheel; 604. Belt; 7. Housing; 8. Cutting blade; 9. Connecting frame; 10. Slide rod; 11. Pressing plate; 12. Spring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0025] Please see Figures 1-4As shown, this utility model is a woven bag sealing device, including a base 1, a support frame 2 installed on the upper surface of the base 1, a connecting plate 3 provided at the lower end of the support frame 2, a heat sealing component 4 installed on the lower surface of the connecting plate 3, a lifting component provided at the upper end of the connecting plate 3, a driving component provided at the upper end of the support frame 2, an opening provided on the upper surface of the connecting plate 3, a housing 7 slidably connected inside the opening, a cutting blade 8 installed on the lower surface of the housing 7, the cutting blade 8 being located inside the opening, a connecting frame 9 installed on the upper surface of the connecting plate 3, a through hole provided on the upper surface of the connecting frame 9, a sliding rod 10 slidably connected inside the through hole, one end of the sliding rod 10 being installed on the upper surface of the housing 7, and a pressing plate 11 being installed on the other end of the sliding rod 10;

[0026] A spring 12 is fitted on the outer surface of the slide bar 10. One end of the spring 12 is installed on the upper surface of the connecting frame 9, and the other end of the spring 12 is installed on the lower surface of the pressing plate 11.

[0027] The operator pushes the pressing plate 11 downward by hand or mechanical device, causing it to slide downward along the slide bar 10. At the same time, the spring 12 gradually contracts, causing the slide bar 10 to move the outer shell 7 and the cutting blade 8 downward within the opening. This allows the cutting blade 8 to extend from the opening, contact and cut the woven bag. After the woven bag is cut, the force on the pressing plate 11 is released, allowing the spring 12 to gradually regain its elasticity, pushing the pressing plate 11 and the slide bar 10 upward, and causing the cutting blade 8 to retract into the opening. The cutting blade 8 only extends when pressing and automatically retracts when not in operation, preventing the cutting blade 8 from contacting the woven bag first before the heat seal 4 is fully pressed, which would result in incomplete sealing during cutting, leading to a loose seal or tearing.

[0028] The lifting assembly includes a rack 501. The upper surface of the support frame 2 has a mounting hole. The rack 501 is slidably connected inside the mounting hole. One end of the rack 501 is mounted on the upper surface of the connecting frame 9.

[0029] Two connecting seats 502 are mounted on the upper surface of the support frame 2. A connecting shaft 503 is rotatably connected between the two connecting seats 502. A gear 504 is mounted on the outer surface of the connecting shaft 503. The gear 504 meshes with the rack 501.

[0030] The drive assembly includes a drive motor 601, a support plate 201 on the outer surface of the support frame 2, a drive motor 601 mounted on the upper surface of the support plate 201, a drive wheel 602 mounted on the output end of the drive motor 601, a driven wheel 603 mounted on one end of the connecting shaft 503, and the drive wheel 602 is connected to the driven wheel 603 via a belt 604.

[0031] A guide groove 101 is provided at one end of the base 1, and the cutting blade 8 is located inside the guide groove 101. A support leg 102 is installed on the lower surface of the base 1.

[0032] When the cutting blade 8 cuts the woven bag, it will produce scraps or debris. The guide channel 101 is located directly below the cutting blade 8 and can directly guide the waste into the designated area to ensure that the cut waste slides out smoothly and avoids getting tangled on the blade.

[0033] In use, first lay the open end of the woven bag to be sealed flat on the upper surface of the base 1, ensuring that the area to be sealed is aligned directly below the heat sealer 4. Then, start the drive motor 601, causing it to rotate the drive wheel 602. This, in turn, drives the driven wheel 603 and the connecting shaft 503 to rotate via the belt 604. The gear 504 on the connecting shaft 503 meshes with the rack 501, pushing the rack 501 downwards along the mounting hole of the support frame 2. This causes the rack 501 to move the connecting plate 3 downwards via the connecting frame 9. Simultaneously, the heat sealer 4, fixed to the lower surface of the connecting plate 3, descends, contacting the sealing area of ​​the woven bag, applying pressure, and heating to fuse the woven bag material. Afterwards, the operator manually or mechanically pushes the pressing plate downwards. 11. The slide bar 10 slides downward along its axis, while the spring 12 gradually contracts, causing the slide bar 10 to move the outer shell 7 and the cutting blade 8 downward within the opening. This allows the cutting blade 8 to extend from the opening, contact and cut the woven bag. After the woven bag is cut, the force on the pressing plate 11 is released, causing the spring 12 to gradually regain its elasticity, pushing the pressing plate 11 and the slide bar 10 upward, and causing the cutting blade 8 to retract into the opening. The waste generated during cutting slides down the guide groove 101 to the designated collection area. After the woven bag is cut, the drive motor 601 is reversed, and the gear 504 drives the rack 501 upward. The connecting plate 3 and the heat sealer 4 are simultaneously reset to their initial height, and then the sealed woven bag can be removed from the base 1.

[0034] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A woven bag sealing device, comprising a base (1), a support frame (2) mounted on the upper surface of the base (1), a connecting plate (3) provided at the lower end of the support frame (2), and a heat sealing element (4) mounted on the lower surface of the connecting plate (3), characterized in that: The upper end of the connecting plate (3) is provided with a lifting component, and the upper end of the support frame (2) is provided with a driving component; The upper surface of the connecting plate (3) is provided with an opening, and a housing (7) is slidably connected inside the opening. A cutting blade (8) is installed on the lower surface of the housing (7), and the cutting blade (8) is located inside the opening. A connecting frame (9) is installed on the upper surface of the connecting plate (3). A through hole is opened on the upper surface of the connecting frame (9). A slide rod (10) is slidably connected inside the through hole. One end of the slide rod (10) is installed on the upper surface of the outer shell (7). A pressing plate (11) is installed on the other end of the slide rod (10).

2. The woven bag sealing device according to claim 1, characterized in that: A spring (12) is fitted on the outer surface of the slide bar (10). One end of the spring (12) is installed on the upper surface of the connecting frame (9), and the other end of the spring (12) is installed on the lower surface of the pressing plate (11).

3. The woven bag sealing device according to claim 1, characterized in that: The lifting assembly includes a rack (501), and the upper surface of the support frame (2) is provided with a mounting hole. The rack (501) is slidably connected inside the mounting hole, and one end of the rack (501) is mounted on the upper surface of the connecting frame (9).

4. The woven bag sealing device according to claim 3, characterized in that: The upper surface of the support frame (2) is equipped with two connecting seats (502), and a connecting shaft (503) is rotatably connected between the two connecting seats (502). A gear (504) is installed on the outer surface of the connecting shaft (503), and the gear (504) meshes with the rack (501).

5. A woven bag sealing device according to claim 4, characterized in that: The drive assembly includes a drive motor (601), the outer surface of the support frame (2) is provided with a support plate (201), the upper surface of the support plate (201) is equipped with a drive motor (601), and the output end of the drive motor (601) is equipped with a drive wheel (602). A driven wheel (603) is installed at one end of the connecting shaft (503), and the driving wheel (602) is connected to the driven wheel (603) via a belt (604).

6. The woven bag sealing device according to claim 1, characterized in that: The base (1) has a flow guide groove (101) at one end, the cutting blade (8) is located inside the flow guide groove (101), and the lower surface of the base (1) is equipped with a support leg (102).

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