Automatic paper bag sealing machine

Abstract

The application relates to the technical field of paper bag sealing equipment, and discloses a paper bag automatic sealing machine, a conveying motor is fixedly connected to the surface of the sealing machine base and close to one side of the top, a conveying belt is drivingly connected to the top of the sealing machine base and close to one side of the conveying motor, a power connection hole is arranged on the surface of the sealing machine base and close to one side of the bottom and away from the conveying motor, a rectangular frame is fixedly connected to the top of the sealing machine base and away from the conveying belt, a sealing frame is movably connected to one side of the surface of the rectangular frame and close to the top, the sealing frame is located at the vertical position of the top of the sealing machine base, and fixing plates are fixedly connected to the surface of the sealing frame and close to the bottom on both sides. The sealing machine is provided with the conveying motor, the conveying belt, the sealing frame and the sealing plastic strip, which is beneficial to sealing the paper bag, the conveying belt is driven by the conveying motor to rotate, the conveying belt conveys the paper bag to the bottom of the sealing frame, and the sealing plastic strip in the sealing frame seals the paper bag.

Description

Technical Field

[0001] This invention relates to the field of paper bag sealing equipment technology, and more specifically to an automatic paper bag sealing machine. Background Technology

[0002] Paper bags are common containers used for packaging goods. They are usually made of paper or similar materials and form a bag-like structure. They are lightweight, environmentally friendly, and easily biodegradable. With the growing awareness of environmental protection, many cities have started to ban plastic bags and encourage people to bring their own reusable bags when shopping. Some merchants, such as dessert and bread, express food, beverages, and clothing, provide paper bags instead of plastic bags, making paper bags widely used in many industries and applications. In order to prevent external factors such as air, moisture, and dust from entering the bag and to ensure that the products inside the bag will not be accidentally leaked or damaged during transportation or storage, thus ensuring the integrity and safety of the products, paper bags generally need to be sealed.

[0003] Traditional sealing methods mostly involve manual sealing or the use of automatic sealing machines. Manual sealing is labor-intensive and inefficient, and workers may miss sealing some paper bags or fail to seal them properly during long hours, resulting in a decrease in the sealing quality. While sealing machines are more efficient, they mostly use heat sealing technology, which limits the types of paper bags that can be sealed. This, in turn, limits the use of automatic sealing machines. Furthermore, existing automatic sealing machines have complex internal structures, leading to higher maintenance and repair costs. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the embodiments of the present invention provide an automatic paper bag sealing machine to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an automatic paper bag sealing machine, comprising a sealing machine base, characterized in that: a conveyor motor is fixedly connected to the top side of the sealing machine base surface; a conveyor belt is drivenly connected to the top side of the sealing machine base near the conveyor motor; a power connection hole is provided on the sealing machine base surface, away from the conveyor motor, near the bottom; a rectangular frame is fixedly connected to the top side of the sealing machine base, away from the conveyor belt; a sealing frame is movably connected to one side of the rectangular frame surface, near the top; the sealing frame is located at a vertical position on the top of the sealing machine base; and the surface of the sealing frame... Fixed plates are fixedly connected to both sides and near the bottom. Material shafts are movably connected to the adjacent side of each fixed plate. The top of each sealing frame is movably fitted with neatly arranged extrusion columns. The top of each extrusion column is fixedly connected to the bottom side of the connecting bracket. With the addition of a conveyor motor, conveyor belt, and sealing frame, the paper bags to be sealed are transported to the bottom of the sealing frame, and the sealing frame automatically seals the paper bags, thereby reducing manual operation steps, reducing labor intensity, and increasing the sealing efficiency of paper bags by sealing them through the sealing frame, and reducing quality problems such as missed sealing or incomplete sealing that occur when sealing manually.

[0006] In a preferred embodiment, a neatly arranged drive shaft is movably sleeved inside the conveyor belt. A conical extrusion block is fixedly connected to the end of the extrusion column away from the connecting bracket. The conical extrusion block is movably connected inside the sealing frame near the bottom. A sealing plastic strip is movably connected to the bottom of the sealing frame, located at the bottom of the movably connected conical extrusion block. Neatly arranged compression springs are fixedly connected to both sides of the bottom of the sealing frame at the location of the movably connected sealing plastic strip. A fixed pressure plate is fixedly connected to the bottom of each compression spring. By providing compression springs and fixed pressure plates, it is beneficial to position the paper bag to be sealed by pushing the fixed pressure plate with the compression springs before sealing, so that the sealing position of the paper bag is in a flat state when sealing, which facilitates the improvement of sealing quality.

[0007] In a preferred embodiment, a transmission groove is provided on the top of the sealing machine base at the position of the transmission belt. Circular through holes are provided on both sides of the transmission groove inside the sealing machine base. A sealing groove is provided on the top of the sealing machine base at the bottom of the sealing frame. A heating plate is fixedly connected to the bottom of the sealing groove. Neatly arranged heat-conducting columns are provided on the top of the heating plate. By providing the heating plate and heat-conducting columns, it is beneficial to melt one end of the sealing plastic strip passing through the paper bag through the heat-conducting columns when sealing the paper bag, and deform it by compression, thereby sealing the paper bag by the sealing plastic strip passing through it.

[0008] In a preferred embodiment, a fixing collar is fixedly connected to the side surface of the rectangular frame away from the sealing machine base and near the top. Another fixing collar is fixedly connected to both sides of the rectangular frame surface near the fixed collar position and near the bottom. A cylinder is fixedly fitted inside each fixing collar. A telescopic rod is provided at the top of each cylinder. The top of the telescopic rod near the middle of the rectangular frame surface is fixedly connected to the bottom of the connecting bracket away from the extrusion column. A rectangular through hole is provided at the top of each cylinder fixedly connected on both sides of the rectangular frame surface. Through the fixing collar, cylinder, telescopic rod, extrusion column, and connecting bracket, it is convenient to fix the position of the cylinder via the fixing collar, and the cylinder drives the telescopic rod to extend and retract, thereby causing the connecting bracket to drive the extrusion column to extend and retract up and down to complete the sealing of the paper bag.

[0009] In a preferred embodiment, a cutting blade is fixedly connected to one side of the conical extrusion block near the right side of the sealing frame. The cutting blade facilitates the cutting of the sealing plastic strip used for sealing the paper bag, thereby separating the sealing plastic strip of the paper bag from the main body.

[0010] In a preferred embodiment, rectangular slide rails are provided on both sides of the sealing frame near the rectangular frame. Cylindrical grooves are provided at the positions of the movable sleeve extrusion columns. A rectangular inner cavity is provided inside the sealing frame near the bottom. A servo motor is fixedly connected to the surface of the fixed plate on the left side of the sealing frame. By providing rectangular slide rails and a servo motor, it is beneficial to move the rectangular slide rails when the telescopic rod is extended or retracted by the cylinder, so that the sealing frame can move up and down as a whole. After the sealing frame seals the paper bag, the residual material of the sealing plastic strip is wound up by the operation of the servo motor.

[0011] In a preferred embodiment, the sealing plastic strip includes a sealing strip, with limiting strips fixedly connected to both sides of the sealing strip and near the top. The limiting strip and the sealing strip are connected at a location with neatly arranged pre-disassembly through holes. A neatly arranged plastic sealing cone is fixedly connected to the bottom of the sealing strip. The sealing plastic strip is flexible overall. The inclusion of the limiting strip, pre-disassembly through holes, and plastic sealing cones facilitates the penetration of the paper bag through the plastic sealing cones during sealing, thereby completing the sealing process. The sealing strip is then separated from the limiting strips after sealing.

[0012] The technical effects and advantages of this invention are as follows:

[0013] 1. This invention, by incorporating a conveyor motor, a conveyor belt, a sealing frame, a sealing plastic strip, and a conical extrusion block, facilitates the sealing of paper bags. The conveyor motor drives the conveyor belt to transport the paper bag to the bottom of the sealing frame, where the sealing plastic strip inside the frame seals the bag. The conical extrusion block then pushes the sealed paper bag away from the sealing plastic strip, completing the sealing operation. This reduces manual steps, lowers labor intensity, increases sealing speed, improves production efficiency, and further avoids problems such as missed seals or incomplete seals that occur with manual sealing.

[0014] 2. This invention, by incorporating a sealing plastic strip, a heating plate, and a heat-conducting column, facilitates the packaging of paper bags made of different materials. The plastic sealing cone in the sealing plastic strip passes through the paper bag, and then the heating plate at the top of the sealing machine base heats and melts the plastic sealing cone as it passes through the paper bag, causing it to deform and seal the hole under pressure. This reduces the limitations of the automatic sealing machine, making it suitable for paper bags made of various materials.

[0015] 3. This invention is composed of components such as a material shaft, sealing plastic strip, extrusion column, connecting bracket, cylinder, telescopic rod, heating plate, cutting blade, and servo motor. It is advantageous to complete the automatic sealing operation of paper bags with a relatively simple mechanical structure and less energy expenditure, thereby simplifying the internal structure of the paper bag sealing machine and reducing subsequent maintenance and other costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 This is a schematic cross-sectional view of the overall structure of the present invention.

[0018] Figure 3 This is a schematic cross-sectional view of the rectangular frame structure of the present invention.

[0019] Figure 4 This is a schematic cross-sectional view of the conical extrusion block structure of the present invention.

[0020] Figure 5 This is a schematic cross-sectional view of the sealing frame structure of the present invention.

[0021] Figure 6 This is a schematic cross-sectional view of the sealing plastic strip structure of the present invention.

[0022] The attached diagram is labeled as follows: 1. Sealing machine base; 101. Transmission groove; 102. Sealing groove; 103. Circular through hole; 2. Conveyor motor; 3. Conveyor belt; 4. Power connection hole; 5. Rectangular frame; 501. Rectangular through hole; 6. Sealing frame; 601. Rectangular slide rail; 602. Cylindrical groove; 603. Rectangular inner cavity; 7. Fixing plate; 8. Material shaft; 9. Extrusion column; 10. Connecting bracket; 11. Transmission shaft; 12. Conical extrusion block; 13. Sealing plastic strip; 1301. Sealing strip; 1302. Limiting strip; 1303. Pre-disassembly through hole; 1304. Plastic sealing cone; 14. Extrusion spring; 15. Fixing pressure plate; 16. Fixing collar; 17. Cylinder; 18. Telescopic rod; 19. Heating plate; 1901. Heat-conducting column; 20. Cutting knife; 21. Servo motor. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The automatic paper bag sealing machine involved in the present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Reference Figure 1 - Figure 6 As shown, the present invention provides an automatic paper bag sealing machine, including a sealing machine base 1. The machine is characterized by: a conveyor motor 2 fixedly connected to the top side of the sealing machine base 1; a conveyor belt 3 connected to the top side of the sealing machine base 1 near the conveyor motor 2; a power connection hole 4 opened on the surface of the sealing machine base 1 away from the conveyor motor 2 near the bottom; a rectangular frame 5 fixedly connected to the top side of the sealing machine base 1 away from the conveyor belt 3; a sealing frame 6 movably connected to one side of the rectangular frame 5 near the top; the sealing frame 6 being located vertically at the top of the sealing machine base 1; fixed plates 7 fixedly connected to both sides of the sealing frame 6 near the bottom; material shafts 8 movably connected to adjacent sides of the fixed plates 7; and neatly arranged extrusion columns 9 movably sleeved on the top of the sealing frame 6. The tops of the extrusion columns 9 are all fixedly connected to the bottom side of the connecting bracket 10.

[0025] In this embodiment, by providing a conveyor motor 2, a conveyor belt 3, and a sealing frame 6, it is beneficial to transport the paper bag to be sealed to the bottom position of the sealing frame 6, and then automatically seal the paper bag through the sealing frame 6, thereby reducing the steps of manual operation, reducing the labor intensity of manual labor, and increasing the sealing efficiency of the paper bag by sealing through the sealing frame 6, and reducing quality problems such as missed sealing or incomplete sealing that occur when sealing manually.

[0026] Reference Figure 2 - Figure 3 As shown, the conveyor belt 3 is movably fitted with a neatly arranged drive shaft 11. The end of the extrusion column 9 away from the connecting bracket 10 is fixedly connected to a conical extrusion block 12. The conical extrusion block 12 is movably connected inside the sealing frame 6 near the bottom. The bottom of the sealing frame 6 and located at the bottom of the movably connected conical extrusion block 12 is movably connected to a sealing plastic strip 13. Both sides of the bottom of the sealing frame 6 located at the position of the movably connected sealing plastic strip 13 are fixedly connected to neatly arranged extrusion springs 14. The bottom of each extrusion spring 14 is fixedly connected to a fixed pressure plate 15.

[0027] In this embodiment, by providing a compression spring 14 and a fixed pressure plate 15, it is beneficial to position the paper bag to be sealed by pushing the fixed pressure plate 15 with the compression spring 14 before sealing, so that the sealing position of the paper bag is in a flat state when sealing, which facilitates the improvement of sealing quality.

[0028] Reference Figure 3 As shown, a transmission groove 101 is provided on the top of the sealing machine base 1 at the position of the transmission belt 3. Circular through holes 103 are provided on both sides of the transmission groove 101 inside the sealing machine base 1. A sealing groove 102 is provided on the top of the sealing machine base 1 at the bottom of the sealing frame 6. A heating plate 19 is fixedly connected to the bottom of the sealing groove 102. A neatly arranged heat-conducting column 1901 is provided on the top of the heating plate 19.

[0029] In this embodiment, by providing a heating plate 19 and a heat-conducting column 1901, it is beneficial to melt one end of the sealing plastic strip 13 passing through the paper bag through the heat-conducting column 1901 when sealing the paper bag, and deform it by extrusion, so that the paper bag is sealed by the sealing plastic strip 13 passing through it.

[0030] Reference Figure 3 As shown, a fixing collar 16 is fixedly connected to the side surface of the rectangular frame 5 away from the sealing machine base 1 and near the top. Another fixing collar 16 is fixedly connected to both sides of the rectangular frame 5 near the bottom of the fixing collar 16. A cylinder 17 is fixedly sleeved inside each fixing collar 16. A telescopic rod 18 is provided at the top of each cylinder 17. The top of the telescopic rod 18 near the middle of the rectangular frame 5 is fixedly connected to the bottom of the connecting bracket 10 away from the extrusion column 9. A rectangular through hole 501 is provided at the top of each cylinder 17 fixedly connected to both sides of the rectangular frame 5.

[0031] In this embodiment, the fixed collar 16, cylinder 17, telescopic rod 18, extrusion column 9, and connecting bracket 10 facilitate the fixing of the position of cylinder 17 by the fixed collar 16, and the extension and retraction of telescopic rod 18 by cylinder 17, thereby enabling connecting bracket 10 to drive extrusion column 9 to extend and retract up and down to complete the sealing of paper bag.

[0032] Reference Figure 4 As shown, a cutting blade 20 is fixedly connected to one side of the surface of the conical extrusion block 12 near the right side of the sealing frame 6.

[0033] In this embodiment: the cutting blade 20 facilitates the cutting of the sealing plastic strip 13 used for sealing the paper bag, thereby separating the sealing plastic strip 13 of the paper bag from the main body.

[0034] Reference Figure 5 As shown, rectangular slide rails 601 are provided on both sides of the sealing frame 6 near the rectangular frame 5. Cylindrical grooves 602 are provided on both sides of the sealing frame 6 at the position of the movable sleeve extrusion column 9. A rectangular inner cavity 603 is provided inside the sealing frame 6 near the bottom. A servo motor 21 is fixedly connected to the surface of the fixing plate 7 fixedly connected to the left side of the sealing frame 6.

[0035] In this embodiment: By providing a rectangular slide rail 601 and a servo motor 21, it is beneficial to move the rectangular slide rail 601 when the telescopic rod 18 is extended or retracted by the cylinder 17, thereby causing the sealing frame 6 to move up and down as a whole. After the sealing frame 6 seals the paper bag, the residual material of the sealing plastic strip 13 after use is rolled up by the operation of the servo motor 21.

[0036] Reference Figure 6 As shown, the sealing plastic strip 13 includes a sealing strip 1301. Limiting strips 1302 are fixedly connected to both sides of the sealing strip 1301 and near the top. The limiting strips 1302 and the sealing strip 1301 are connected with neatly arranged pre-disassembly through holes 1303. The bottom of the sealing strip 1301 is fixedly connected with neatly arranged plastic sealing cones 1304. The sealing plastic strip 13 is flexible as a whole.

[0037] In this embodiment, by providing a limiting strip 1302, a pre-disassembly through hole 1303, and a plastic sealing cone 1304, it is beneficial to penetrate the paper bag through the plastic sealing cone 1304 and complete the sealing during sealing. Then, the sealing strip 1301 and the limiting strip 1302 are separated after sealing by the plastic sealing cone 1304.

[0038] The working principle of this invention is as follows: First, when using the machine, insert the power supply into the power connection hole 4 on one side of the sealing machine base 1, energizing the heating plate 19 and heat-conducting column 1901 inside the sealing machine base 1. Then, place the paper bag to be sealed at the top of the conveyor belt 3 on the top of the sealing machine base 1, with one end of the paper bag close to the sealing frame 6. Next, turn on the conveyor motor 2, causing the transmission shaft 11 to rotate. The rotation of the transmission shaft 11 causes the conveyor belt 3 inside the transmission groove 101 to transport the paper bag towards the bottom of the sealing frame 6. When the paper bag reaches the bottom of the sealing frame 6, activate the cylinder 17 located inside the fixing rings 16 on one side of the rectangular frame 5, causing the cylinder 17 to... The top telescopic rod 18 extends and retracts. This extension and retraction causes the rectangular slide rail 601 to move within the rectangular through hole 501, moving the sealing frame 6 closer to the top of the sealing machine base 1. At this point, the fixed pressure plates 15 on both sides of the bottom of the sealing frame 6 first restrict the front end of the paper bag with the sealing frame 6 body. As the sealing frame 6 continues to descend, the pressure on the compression spring 14 at the top of the fixed pressure plate 15 increases, increasing the restrictive force of the fixed pressure plate 15 on the paper bag. When the sealing frame 6 contacts the surface of the paper bag, the cylinder 17 near the top of the rectangular frame 5 is activated, causing the telescopic rod 18 to lower the connecting bracket 10. The descent of the connecting bracket 10 then... The extrusion column 9, inside the cylindrical groove 602, moves the conical extrusion block 12 closer to the top of the sealing plastic strip 13. At this time, the cutting blade 20 on one side of the conical extrusion block 12 cuts the sealing strip 1301. Then, the conical extrusion block 12 continues to descend, pressing the sealing strip 1301 in the limiting strip 1302 downwards, causing the pre-disassembly through hole 1303 at the connection position between the sealing strip 1301 and the limiting strip 1302 to break and separate. At this time, the sealing strip 1301, squeezed by the conical extrusion block 12, causes the plastic sealing cone 1304 at the bottom of the sealing strip 1301 to penetrate the bottom of the paper bag and enter the sealing groove 102 opened at the top of the sealing machine base 1. Then, the plastic sealing cone 1304 contacts the heat-conducting column 1901 at the top of the heating plate 19. At this time, as the pressure... The increased force and the influence of the surface temperature of the heat-conducting column 1901 cause the plastic sealing cone 1304 to melt and deform at the end passing through the paper bag. At this time, the paper bag is sealed by the sealing strip 1301 and the plastic sealing cone 1304. Then, the cylinder 17 is opened again to reset the sealing frame 6 and the extrusion column 9. Then, the servo motor 21 on one side of the fixed plate 7 is turned on, causing the servo motor 21 to drive the material shaft 8 on the left side of the sealing frame 6 to rotate. The rotation of the material shaft 8 then winds up the limiting strip 1302. The winding of the limiting strip 1302 then pulls the sealing plastic strip 13 on the surface of the material shaft 8 on the right side of the sealing frame 6, so that the limiting strip 1302 connected to the sealing strip 1301 enters the interior of the sealing frame 6 and approaches the material shaft 8 on the left side of the sealing frame 6.Then, follow the steps described above to place and seal the new paper bag. The process is simple and convenient, reduces manual labor, and is not limited by the type of paper material.

[0039] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic paper bag sealing machine, comprising a sealing machine base (1), characterized in that: A conveyor motor (2) is fixedly connected to the top side of the sealing machine base (1). A conveyor belt (3) is drivenly connected to the top side of the sealing machine base (1) near the conveyor motor (2). A power connection hole (4) is provided on the bottom side of the sealing machine base (1) away from the conveyor motor (2). A rectangular frame (5) is fixedly connected to the top side of the sealing machine base (1) away from the conveyor belt (3). A sealing frame (6) is movably connected to one side of the rectangular frame (5) near the top. The sealing frame (6) is located at the top vertical position of the sealing machine base (1). Both sides of the sealing frame (6) near the bottom are fixedly connected to... A fixed plate (7) is attached, and a material shaft (8) is movably connected to each adjacent side of the fixed plate (7). A neatly arranged extrusion column (9) is movably fitted onto the top of each sealing frame (6). The top of each extrusion column (9) is fixedly connected to the bottom side of the connecting bracket (10). A neatly arranged transmission shaft (11) is movably fitted inside the conveyor belt (3). A conical extrusion block (12) is fixedly connected to the end of each extrusion column (9) away from the connecting bracket (10). The conical extrusion block (12) is movably connected inside the sealing frame (6) near the bottom. A sealing block is movably connected to the bottom of the conical extrusion block (12) inside the sealing frame (6). Plastic strip (13), the sealing frame (6) has two sides of the bottom of the sealing plastic strip (13) with neatly arranged compression springs (14) fixedly connected, and the bottom of the compression springs (14) is fixedly connected to a fixed pressure plate (15). The top of the sealing machine base (1) is provided with a transmission groove (101) at the position of the transmission belt (3). The sealing machine base (1) has two sides of the transmission groove (101) with circular through holes (103). The top of the sealing machine base (1) is provided with a sealing groove (102) at the bottom of the sealing frame (6). The bottom of the sealing groove (102) is fixedly connected to a heating plate (19). The heating plate (19) has a neatly arranged heat-conducting column (1901) on the top. A cutting knife (20) is fixedly connected to one side of the surface of the conical extrusion block (12) near the right side of the sealing frame (6). The sealing plastic strip (13) includes a sealing strip (1301). Limiting strips (1302) are fixedly connected to both sides of the surface of the sealing strip (1301) and near the top. A neatly arranged pre-disassembly through hole (1303) is opened at the connection position between the limiting strip (1302) and the sealing strip (1301). A neatly arranged plastic sealing cone (1304) is fixedly connected to the bottom of the sealing strip (1301). The sealing plastic strip (13) is flexible as a whole.

2. The automatic paper bag sealing machine according to claim 1, characterized in that: A fixing collar (16) is fixedly connected to the side surface of the rectangular frame (5) away from the sealing machine base (1) and near the top. Another fixing collar (16) is fixedly connected to both sides of the fixed collar (16) and near the bottom of the rectangular frame (5). A cylinder (17) is fixedly sleeved inside each fixing collar (16). A telescopic rod (18) is opened at the top of each cylinder (17). The top of the telescopic rod (18) near the middle of the rectangular frame (5) is fixedly connected to the bottom of the connecting bracket (10) away from the extrusion column (9). A rectangular through hole (501) is opened at the top of each cylinder (17) fixedly connected to both sides of the rectangular frame (5).

3. The automatic paper bag sealing machine according to claim 1, characterized in that: The sealing frame (6) has rectangular slide rails (601) on both sides of the side surface near the rectangular frame (5). The sealing frame (6) has cylindrical grooves (602) at the position of the movable sleeve extrusion column (9). The sealing frame (6) has a rectangular inner cavity (603) near the bottom. The sealing plate (7) fixedly connected to the left side of the sealing frame (6) has a servo motor (21) fixedly connected to its surface.

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