Sealing system for packaging machine and control method of sealing system

Abstract

The invention discloses a sealing system for a packaging machine and a control method thereof.The sealing system comprises a conveying chain plate machine, a bag opening clamping mechanism, a bag opening guiding-in mechanism and a sewing machine system; the conveying chain plate machine, the bag opening clamping mechanism, the bag opening guiding-in mechanism and the sewing machine system are installed and fixed through the packaging machine rack. The bag opening clamping mechanism is located above the bag opening guiding-in mechanism in the vertical direction and used for clamping the packaging bag to the belt clamping position. The conveying chain plate machine is located below the bag opening guiding-in mechanism in the vertical direction, and the bag opening guiding-in mechanism is matched with the conveying chain plate machine and used for clamping the bag opening of the packaging bag and conveying the packaging bag to a sewing position. The sewing machine system is located behind the bag opening guiding-in mechanism in the horizontal direction and used for achieving bag opening sewing of the packaging bag and completing packaging. According to the sealing system for the packaging machine and the control method of the sealing system, the problem that due to the bag opening and hanging processes, the heights of ton bag openings are different, and work of a sewing machine system is affected is solved.

Description

Technical Field

[0001] This invention belongs to the field of packaging equipment technology, and in particular relates to a sealing system for packaging machines and its control method. Background Technology

[0002] Driven by sustained macroeconomic growth and continuous innovation in engineering technology, the level of industrial automation has been significantly improved. As a key piece of equipment in this process, packaging machines have evolved from initial programmed execution to complex decision-making based on artificial intelligence. By replacing manual operation with automated work, packaging machines have greatly improved production efficiency and standardization, and have therefore been systematically applied in industries such as chemical raw materials, industrial products, agricultural products, and large-scale food production.

[0003] The final step in ton bag packaging machines is sealing the bags. The sewing machine, as the core mechanism for sealing, is typically designed with a fixed height. This is a result of a comprehensive trade-off between factors such as mechanical structural stability, process consistency, and cost control. While this design provides a decisive advantage in maintaining production stability and controlling equipment complexity, it also limits the strict uniformity of the bag opening's sewing height. However, during the bag opening and hanging process, it's difficult to maintain a consistent bag opening height. To address these issues, there is an urgent need for a sealing system that guarantees a consistent bag sealing height, automatically adjusting the sewing height to ensure proper stitching by the sewing machine system. Summary of the Invention

[0004] The technical problem solved by the present invention is to overcome the shortcomings of the prior art and provide a sealing system and control method for packaging machines, which solves the problem that the inconsistent height of the bag opening caused by the bag opening and hanging process affects the operation of the sewing machine system.

[0005] To address the aforementioned technical problems, this invention discloses a sealing system for a packaging machine, comprising: a conveyor chain conveyor, a bag opening clamping mechanism, a bag opening guiding mechanism, and a sewing machine system; wherein the conveyor chain conveyor, the bag opening clamping mechanism, the bag opening guiding mechanism, and the sewing machine system are respectively installed and fixed via the packaging machine frame; the bag opening clamping mechanism is located above the bag opening guiding mechanism in the vertical direction, used to clamp the packaging bag and hold it to the clamping position; the conveyor chain conveyor is located below the bag opening guiding mechanism in the vertical direction, and the bag opening guiding mechanism cooperates with the conveyor chain conveyor to clamp the bag opening and convey the packaging bag to the sewing position; the sewing machine system is located behind the bag opening guiding mechanism in the horizontal direction, used to sew the bag opening of the packaging bag to complete the packaging.

[0006] In the above-mentioned sealing system for a packaging machine, the conveying chain plate machine includes: a support structure A, a driving chain, a driven chain, a rectangular pipe, a driving motor A, a reducer A, a transmission chain, and a sprocket system; wherein, the support structure A is connected to the packaging machine frame by bolts; several rectangular pipes are arranged in parallel at equal intervals and are connected into a whole by the driving chain and the driven chain arranged at both ends of each rectangular pipe to form a slide plate assembly; the slide plate assembly is placed above the support structure A; the driving motor A, the reducer A, and the sprocket system are installed at one end of the side of the support structure A; the output shaft of the driving motor A is connected to the input end of the reducer A; the output end of the reducer A is connected to the sprocket system through the transmission chain; the sprocket system meshes with the driving chain of the slide plate assembly; when the driving motor A works, it drives the slide plate assembly to act through the reducer A, the transmission chain, and the sprocket system, and then imports the packaging bag to the sewing position.

[0007] In the above-mentioned sealing system for a packaging machine, the bag mouth clamping mechanism includes: a driving wheel, a synchronous belt, a jaw system, a pulley drive system, a fixed structure, a slide rail drive system, and a driven wheel; wherein, the back slide rail of the fixed structure is connected to the packaging machine frame; the pulley drive system is installed on the fixed structure; the driving wheel is connected to the pulley drive system through a shaft for transmitting the torque of the pulley drive system; the driving wheel and the driven wheel form a closed loop through the synchronous belt to form a conveyor belt assembly; the jaw system is connected to the synchronous belt and can move horizontally under the drive of the synchronous belt; the slide rail drive system is installed on the fixed structure for driving the up and down movement of the bag mouth importing mechanism.

[0008] In the above-mentioned sealing system for a packaging machine, the jaw system includes: a support frame, jaws, a driving cylinder, a photoelectric sensor, and a drag chain; wherein, the support frame is fixed on the synchronous belt through a toothed plate to convert the rotational movement of the pulley drive system into a horizontal movement; the driving cylinder is installed on the support frame and is connected to the jaws to drive the opening / closing of the jaws; the photoelectric sensor is installed on the support frame for sensing the opening / closing state of the jaws and providing a control signal for the slide rail drive system; the drag chain is installed on the support frame for arranging the cables and air pipes supporting the jaw system.

[0009] In the above-mentioned sealing system for a packaging machine, the pulley drive system includes: a servo motor A and a reducer B; wherein, the servo motor A and the reducer B are coaxially connected; the reducer B is connected to the fixed structure by bolts.

[0010] In the sealing system of the packaging machine described above, the slide rail drive system includes: a servo motor B, a reducer C, a lead screw, and a lead screw slider; wherein, the servo motor B, the reducer C, and the lead screw are coaxially connected; the reducer C is connected to a fixed structure by bolts; the lead screw slider is mounted on the lead screw; the lead screw slider is connected to the bag opening guide mechanism; when the servo motor B operates, after being reduced in speed by the reducer C, it drives the lead screw to move, providing power for the up-and-down movement of the lead screw slider, thereby driving the up-and-down movement of the bag opening guide mechanism.

[0011] In the sealing system of the packaging machine described above, the bag opening guide mechanism includes: a drive system, a support structure B, a left guide conveyor, a right guide conveyor, a linear slider, and a cylinder assembly. The linear slider is installed on the rear side of the support structure B and connected to the packaging machine frame by bolts to fix the bag opening guide mechanism. The drive system is installed above the support structure B to provide driving force for the movement of the left and right guide conveyors. The left and right guide conveyors are installed below the support structure B to drive the bag opening of the packaging bag to move under the driving force provided by the drive system. The cylinder assembly is installed below the support structure to drive the right guide conveyor to move in a circumferential direction, thereby clamping the bag opening of the packaging bag.

[0012] In the sealing system used in the packaging machine described above,

[0013] Support structure B includes: a box-shaped structure, a support plate, and a tripod; wherein the box-shaped structure is located on the upper left side, the tripod is located on the lower right side, and the box-shaped structure and the tripod are connected and fixed by the support plate;

[0014] The linear slider is connected to the tripod by bolts and is located at the rear of the tripod;

[0015] The cylinder assembly is located below the tripod, with one side connected to the tripod via a spherical bearing, and the other side connected to the right guide conveyor via a pull plate;

[0016] The left-inlet conveyor includes: a left-inlet conveyor transmission mechanism, a left-inlet conveyor support arm, and a left-inlet conveyor guide chain; wherein, the left-inlet conveyor support arm has an L-shaped structure and is located below the box-shaped structure and on the side of the triangular frame; the left-inlet conveyor transmission mechanism is mounted on the left-inlet conveyor support arm; the left-inlet conveyor guide chain is mounted on the bottom of the left-inlet conveyor support arm; the left-inlet conveyor transmission mechanism includes: a left-inlet conveyor gear, a left-inlet conveyor deep groove ball bearing, and a left-inlet conveyor drive shaft; wherein, the left-inlet conveyor gear and the left-inlet conveyor drive shaft are connected by a key; the left-inlet conveyor deep groove ball bearing is fixed to the left-inlet conveyor drive shaft by a shoulder; the left-inlet conveyor guide chain is driven by the left-inlet conveyor drive shaft;

[0017] The right-hand conveyor includes: a right-hand conveyor transmission mechanism, a right-hand conveyor support arm, and a right-hand conveyor guide chain; wherein, the right-hand conveyor support arm has an L-shaped structure and is located below the box-shaped structure and on the side of the triangular frame; the right-hand conveyor transmission mechanism is mounted on the right-hand conveyor support arm; the right-hand conveyor guide chain is mounted at the bottom of the right-hand conveyor support arm; the right-hand conveyor transmission mechanism includes: a right-hand conveyor gear, an angular contact ball bearing, a right-hand conveyor deep groove ball bearing, and a right-hand conveyor drive shaft; wherein, the right-hand conveyor gear and the right-hand conveyor drive shaft are connected by a key; the angular contact ball bearing and the right-hand conveyor deep groove ball bearing are fixed to the right-hand conveyor drive shaft by shoulders; the right-hand conveyor gear meshes with the left-hand conveyor gear; the right-hand conveyor guide chain is driven by the right-hand conveyor drive shaft;

[0018] The drive system includes a drive motor B and a reducer D; wherein the drive motor B is connected to the reducer D; the reducer D is mounted on the box-type structure and is connected to the box-type structure by bolts; the driving force output by the drive motor B is reduced by the reducer D and then acts on the left and right guide chains of the inlet conveyor, driving the left and right guide chains to move, thereby driving the movement of the bag opening of the packaging bag.

[0019] In the sealing system used in the packaging machine described above, the sewing machine system includes: a folding machine, a sewing machine, and a cutting system; wherein, the folding machine is located between the bag opening guide mechanism and the sewing machine, and is used to fold and fix the bag opening of the packaging bag; the sewing machine is used to sew the bag opening folded by the folding machine; the cutting system is located at the end of the sewing machine and is used to cut the sewing thread after sewing is completed.

[0020] Accordingly, the present invention also discloses a control method for a sealing system of a packaging machine, comprising:

[0021] S1, Initialization settings, including: setting the initial position A of the bag opening clamping mechanism and the bag clamping position, as well as the initial position B of the bag opening guiding mechanism, according to different bag opening heights;

[0022] S2, control the bag mouth clamping mechanism to move to the initial position A, clamp the packaging bag, and clamp the packaging bag to the clamping position;

[0023] S3, after entering the bag clamping position, control the bag mouth clamping mechanism to release the clamping of the packaging bag, the bag mouth guiding mechanism moves down, and cooperates with the conveyor chain plate machine to realize the clamping of the bag mouth of the packaging bag and convey the packaging bag to the sewing position;

[0024] S4 controls the sewing machine system to complete the sewing of the bag opening, thus ending the packaging process.

[0025] The present invention has the following advantages:

[0026] This invention discloses a sealing system and control method for packaging machines. By coordinating the photoelectric sensor of the bag opening clamping mechanism with the up-and-down movement of the bag opening guiding mechanism, the uniformity of the sewing height of the ton bag opening can be automatically achieved, avoiding changes in the bag opening height introduced during the bag opening and hanging process, so that the packaging bag can be sealed using a sewing machine system with a fixed height. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of a sealing system for a packaging machine according to an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the structure of a conveyor chain plate machine according to an embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of the structure of a bag opening clamping mechanism in an embodiment of the present invention;

[0030] Figure 4 This is a first-view structural schematic diagram of a bag opening inlet mechanism according to an embodiment of the present invention;

[0031] Figure 5 This is a second-view structural schematic diagram of a bag opening inlet mechanism according to an embodiment of the present invention;

[0032] Figure 6 This is a schematic diagram of the structure of a left and right inlet conveyor in an embodiment of the present invention. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments disclosed in the present invention will be described in further detail below with reference to the accompanying drawings.

[0034] Reference Figure 1 In this embodiment, the sealing system for the packaging machine includes: a conveyor chain plate machine 1, a bag mouth clamping mechanism 2, a bag mouth guiding mechanism 3, and a sewing machine system 4. The conveyor chain plate machine 1, the bag mouth clamping mechanism 2, the bag mouth guiding mechanism 3, and the sewing machine system 4 are respectively installed and fixed via the packaging machine frame 5. The bag mouth clamping mechanism 2 is located vertically above the bag mouth guiding mechanism 3, used to clamp the packaging bag and move it to the clamping position. The conveyor chain plate machine 1 is located vertically below the bag mouth guiding mechanism 3, and the bag mouth guiding mechanism 3 cooperates with the conveyor chain plate machine 1 to clamp the bag mouth and convey the packaging bag to the sewing position. The sewing machine system 4 is located horizontally behind the bag mouth guiding mechanism 3, used to sew the bag mouth to complete the packaging.

[0035] In this embodiment, as Figure 2As shown in the figure, the conveying chain plate machine 1 mainly includes: a support structure A11, a driving chain, a driven chain, a rectangular pipe, a driving motor A13, a reducer A14, a transmission chain 15, and a sprocket system 16. Among them, the support structure A11 is mainly composed of channel steel and serves as the main load-bearing structure of the conveying chain plate machine. It is connected to the packaging machine frame 5 by bolts. A number of rectangular pipes are arranged in parallel at equal intervals and are connected into a whole through the driving chain and the driven chain provided at both ends of each rectangular pipe to form a skateboard assembly 12. The skateboard assembly 12 is placed above the support structure A11. The driving motor A13, the reducer A14, and the sprocket system 16 are installed at one end of the side of the support structure A11. The output shaft of the driving motor A13 is connected to the input end of the reducer A14. The output end of the reducer A14 is connected to the sprocket system 16 through the transmission chain 15. The sprocket system 16 meshes with the driving chain of the skateboard assembly 12. When the driving motor A13 works, it drives the skateboard assembly 12 to move through the reducer A14, the transmission chain 15, and the sprocket system 16, and then guides the packaging bag to the sewing position.

[0036] In this embodiment, as Figure 3 shown, the bag mouth clamping mechanism 2 mainly includes: a driving wheel 21, a synchronous belt 22, a jaw system 23, a pulley drive system 24, a fixed structure 25, a slide rail drive system 26, and a driven wheel 27. Among them, the fixed structure 25 is mainly composed of square tube rib plates and serves as the main load-bearing structure of the bag mouth clamping mechanism. The back slide rail of the fixed structure 25 is connected to the packaging machine frame 5. The pulley drive system 24 is installed on the fixed structure 25. The driving wheel 21 is connected to the pulley drive system 24 through a shaft and is used to transmit the torque of the pulley drive system 24. The driving wheel 21 and the driven wheel 27 form a closed loop through the synchronous belt 22 to form a conveyor belt assembly. The jaw system 23 is connected to the synchronous belt 22 and can move horizontally under the drive of the synchronous belt 22. The slide rail drive system 26 is installed on the fixed structure 25 and is used to drive the up and down movement of the bag mouth guiding mechanism 3.

[0037] Furthermore, the jaw system 23 mainly includes: a support frame, jaws, a driving cylinder, a photoelectric sensor, and a drag chain. Among them, the support frame is fixed on the synchronous belt 22 through a toothed plate, converting the rotational movement of the pulley drive system 24 into a horizontal movement. The driving cylinder is installed on the support frame and is connected to the jaws to drive the opening / closing of the jaws. The photoelectric sensor is installed on the support frame and is used to sense the opening / closing state of the jaws and provide a control signal for the slide rail drive system 26. The drag chain is installed on the support frame and is used to arrange the cables and air pipes supporting the jaw system 23.

[0038] Furthermore, the pulley drive system 24 mainly includes: a servo motor A and a reducer B. Among them, the servo motor A is coaxially connected to the reducer B. The reducer B is connected to the fixed structure 25 by bolts.

[0039] Furthermore, the slide rail drive system 26 mainly includes: a servo motor B, a reducer C, a lead screw, and a lead screw slider. The servo motor B, reducer C, and lead screw are coaxially connected; the reducer C is connected to the fixed structure 25 via bolts; the lead screw slider is mounted on the lead screw; the lead screw slider is connected to the bag opening guide mechanism 3; when the servo motor B operates, after being reduced in speed by the reducer C, it drives the lead screw to move, providing power for the up-and-down movement of the lead screw slider, thereby driving the up-and-down movement of the bag opening guide mechanism 3.

[0040] In this embodiment, as Figures 4-5 As shown, the bag opening guiding mechanism 3 mainly includes: a drive system 31, a support structure B32, a left guiding conveyor 33, a right guiding conveyor 34, a linear slider 35, and a cylinder assembly 36. The linear slider 5 is installed on the rear side of the support structure B32 and connected to the packaging machine frame 5 by bolts, used to fix the bag opening guiding mechanism 3. The drive system 31 is installed above the support structure B32 to provide driving force for the movement of the left guiding conveyor 33 and the right guiding conveyor 34. The left guiding conveyor 33 and the right guiding conveyor 34 are installed below the support structure B32 to drive the bag opening to move under the driving force provided by the drive system 31. The cylinder assembly 6 is installed below the support structure B32 to drive the right guiding conveyor 4 to move in a circular direction, thus clamping the bag opening.

[0041] Furthermore, the support structure B32 mainly includes: a box-shaped structure 321, a support plate 322, and a tripod 323. Among them, the box-shaped structure 321 is located on the upper left side, and the tripod 323 is located on the lower right side. The box-shaped structure 321 and the tripod 323 are connected and fixed by the support plate 322.

[0042] Furthermore, the linear slider 35 is bolted to the tripod 323 and is located at the rear of the tripod 323.

[0043] Furthermore, the cylinder assembly 36 is located below the tripod 323, with one side connected to the tripod 323 via a spherical bearing, and the other side connected to the right inlet conveyor 34 via a pull plate.

[0044] Furthermore, the left-inlet conveyor 33 mainly includes: a left-inlet conveyor transmission mechanism, a left-inlet conveyor support arm, and a left-inlet conveyor guide chain. The left-inlet conveyor support arm has an L-shaped structure and is located below the box-shaped structure 321 and on the side of the tripod 323; the left-inlet conveyor transmission mechanism is mounted on the left-inlet conveyor support arm; and the left-inlet conveyor guide chain is mounted at the bottom of the left-inlet conveyor support arm. Figure 6As shown, the transmission mechanism of the left inlet conveyor mainly includes: a left inlet conveyor gear 331, a left inlet conveyor deep groove ball bearing 332, and a left inlet conveyor drive shaft 333; wherein, the left inlet conveyor gear 331 and the left inlet conveyor drive shaft 333 are connected by a key; the left inlet conveyor deep groove ball bearing 332 is fixed on the left inlet conveyor drive shaft 333 by a shoulder; the left inlet conveyor guide chain is driven by the left inlet conveyor drive shaft 333.

[0045] Furthermore, the right-hand conveyor 34 mainly includes: a right-hand conveyor transmission mechanism, a right-hand conveyor support arm, and a right-hand conveyor guide chain. The right-hand conveyor support arm has an L-shaped structure and is located below the box-shaped structure 321 and on the side of the triangular frame 323; the right-hand conveyor transmission mechanism is mounted on the right-hand conveyor support arm; and the right-hand conveyor guide chain is mounted at the bottom of the right-hand conveyor support arm. Figure 6 As shown, the transmission mechanism of the right inlet conveyor mainly includes: a right inlet conveyor gear 341, an angular contact ball bearing 342, a right inlet conveyor deep groove ball bearing 343, and a right inlet conveyor drive shaft 344; wherein, the right inlet conveyor gear 341 and the right inlet conveyor drive shaft 344 are connected by a key; the angular contact ball bearing 342 and the right inlet conveyor deep groove ball bearing 343 are fixed on the right inlet conveyor drive shaft 344 by a shoulder; the right inlet conveyor guide chain is driven by the right inlet conveyor drive shaft 344; the right inlet conveyor gear 341 meshes with the left inlet conveyor gear 331 and rotates synchronously under the drive of the drive system 31, and after being transmitted by the left inlet conveyor drive shaft 333 and the right inlet conveyor drive shaft 344 respectively, it drives the left inlet conveyor guide chain and the right inlet conveyor guide chain to move synchronously, thereby driving the movement of the bag opening.

[0046] Furthermore, the drive system 31 mainly includes a drive motor B311 and a reducer D312. The drive motor B311 is connected to the reducer D312; the reducer D312 is mounted on the box-type structure 321 and connected to it via bolts; the driving force output by the drive motor B311, after being reduced by the reducer D312, acts on the left and right inlet conveyor chains, driving their movement and thus moving the opening of the packaging bag.

[0047] Furthermore, the working principle of the bag inlet mechanism 3 is as follows: All electrical components are connected to a power source, the cylinder assembly is connected to an air source, and a control switch is also connected. At this time, the left and right inlet conveyors are arranged in a V-shape. When the cylinder assembly is activated, it drives the right inlet conveyor to move in a circular direction, causing the left and right inlet conveyors to approach each other in a V-shape and clamp the bag opening. After clamping, the drive system operates, driving the guide chains of the left and right inlet conveyors to move synchronously, cooperating with the conveyor chain conveyor to transport the packaging bag from the front end to the rear end. After reaching the rear end, the cylinder assembly resets, and the left and right inlet conveyors return to their V-shape arrangement.

[0048] In this embodiment, the sewing machine system 4 mainly includes: a folding machine, a sewing machine, and a cutting system. The folding machine is located between the bag opening guide mechanism 3 and the sewing machine, and is used to fold and secure the bag opening. The sewing machine is used to sew the folded bag opening. The cutting system is located at the end of the sewing machine and is used to cut the sewing thread after sewing.

[0049] In this embodiment, the sealing system for the packaging machine works as follows: Initially, all mechanisms are in their initial positions, and the power and air supply are turned on. After the packaging bag enters the bag opening clamping mechanism 2, the gripper system 23 activates, the grippers close, the belt pulley drive system 24 activates, the drive motor A13 is energized, and the bag opening clamping mechanism 2 drives the packaging bag to move horizontally to the clamping position. The belt pulley drive system 24 resets, and the drive motor A13 is de-energized. The gripper system 23 activates, the grippers open, the slide rail drive system 26 is energized, and the bag opening guide mechanism 3 moves downward. When the photoelectric sensor loses its signal, it confirms that the bag opening is adjusted to the same height as the sewing machine system 4. The bag opening guide mechanism 3 activates, and the left and right guide conveyor chains move, cooperating with the conveyor chain plate machine 1 to transport the packaging bag into the sewing machine system 4. The sewing machine system 4 activates, completing the bag opening folding and sewing, and the packaging is completed. At the same time, the bag opening guide mechanism 3 resets.

[0050] Based on the above embodiments, the present invention also discloses a control method for a sealing system of a packaging machine, comprising:

[0051] S1, Initialization settings. The initial position A of the bag opening clamping mechanism and the initial position B of the bag opening guiding mechanism are both related to different bag opening heights. Therefore, the initial position A of the bag opening clamping mechanism, the bag clamping position (horizontally close to the initial position B of the bag opening guiding mechanism), and the initial position B of the bag opening guiding mechanism can be set according to different bag opening heights.

[0052] S2, control the bag mouth clamping mechanism to move to the initial position A, clamp the packaging bag, and hold the packaging bag to the clamping position. Specifically, when the bag mouth clamping mechanism moves to the initial position A, the grippers open, the packaging bag enters the grippers, the grippers move and close; the belt pulley drive system moves, and at the same time, the drive motor A in the conveyor chain plate machine starts, and the bag mouth clamping mechanism clamps the packaging bag to the clamping position.

[0053] S3, after entering the bag clamping position, the bag opening clamping mechanism releases its grip on the packaging bag, and the bag opening guide mechanism moves downward, cooperating with the conveyor chain plate machine to clamp the bag opening and convey the packaging bag to the sewing position. Specifically: after entering the bag clamping position, the drive motor A in the belt pulley drive system and the conveyor chain plate machine is de-energized, the drive cylinder resets, and the grippers open; the slide rail drive system is energized, driving the bag opening guide mechanism to move downward. When the photoelectric sensor signal disappears, it is determined that the bag opening is adjusted to the appropriate position, and the slide rail drive system is de-energized; the cylinder assembly of the bag opening guide mechanism actuates, driving the right guide conveyor to move in a circumferential direction, and the left and right guide conveyors approach in a V-shape to clamp the bag opening; after clamping, the drive system of the bag opening guide mechanism works, driving the guide chains of the left and right guide conveyors to move synchronously, cooperating with the conveyor chain plate machine to send the packaging bag into the sewing machine system. At the same time, the belt pulley drive system resets, and the bag opening clamping mechanism returns to its initial position.

[0054] S4 controls the sewing machine system to complete the sewing of the bag opening, ending the packaging process. Specifically: the bag opening enters the folding machine, which folds and secures the bag opening; then the sewing machine sews the folded opening; after sewing, the cutting system cuts the thread, sealing the bag, and simultaneously the slide rail drive system resets, returning the bag opening guide mechanism to its initial position.

[0055] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make possible changes and modifications to the technical solutions of the present invention by utilizing the methods and techniques disclosed above without departing from the spirit and scope of the present invention. Therefore, any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solutions of the present invention shall fall within the protection scope of the technical solutions of the present invention.

[0056] The contents not described in detail in this specification are common knowledge to those skilled in the art.

Claims

1. A sealing system for a packaging machine, characterized in that, include: The package includes a conveyor chain plate machine (1), a bag mouth clamping mechanism (2), a bag mouth guiding mechanism (3), and a sewing machine system (4). The conveyor chain plate machine (1), the bag mouth clamping mechanism (2), the bag mouth guiding mechanism (3), and the sewing machine system (4) are installed and fixed by the packaging machine frame (5). The bag mouth clamping mechanism (2) is located above the bag mouth guiding mechanism (3) in the vertical direction and is used to clamp the packaging bag and clamp it to the clamping position. The conveyor chain plate machine (1) is located below the bag mouth guiding mechanism (3) in the vertical direction. The bag mouth guiding mechanism (3) cooperates with the conveyor chain plate machine (1) to clamp the bag mouth of the packaging bag and convey the packaging bag to the sewing position. The sewing machine system (4) is located behind the bag mouth guiding mechanism (3) in the horizontal direction and is used to sew the bag mouth of the packaging bag to complete the packaging.

2. The sealing system for a packaging machine according to claim 1, characterized in that, The conveyor chain conveyor (1) includes: a support structure A (11), a drive chain, a driven chain, rectangular tubes, a drive motor A (13), a reducer A (14), a transmission chain (15), and a sprocket system (16); wherein, the support structure A (11) is connected to the packaging machine frame (5) by bolts; several rectangular tubes are arranged in parallel at equal intervals and connected into a whole by the drive chain and driven chain set at both ends of each rectangular tube to form a slide plate assembly (12); the slide plate assembly (12) is placed above the support structure A (11); the drive motor A (13) The reducer A (14) and the sprocket system (16) are installed on one side of the support structure A (11); the output shaft of the drive motor A (13) is connected to the input end of the reducer A (14); the output end of the reducer A (14) is connected to the sprocket system (16) through the transmission chain (15); the sprocket system (16) meshes with the drive chain of the slide assembly (12); the drive motor A (13) works, and drives the slide assembly (12) to move through the reducer A (14), the transmission chain (15), and the sprocket system (16), thereby guiding the packaging bag to the sewing position.

3. The sealing system for a packaging machine according to claim 2, characterized in that, The bag opening clamping mechanism (2) includes: a drive wheel (21), a timing belt (22), a gripper system (23), a pulley drive system (24), a fixed structure (25), a slide rail drive system (26), and a driven wheel (27); wherein, the back slide of the fixed structure (25) is connected to the packaging machine frame (5); the pulley drive system (24) is installed on the fixed structure (25); the drive wheel (21) is connected to the pulley drive system (24) through a shaft and is used to transmit the torque of the pulley drive system (24); the drive wheel (21) forms a closed loop with the driven wheel (27) through the timing belt (22) to form a conveyor belt assembly; the gripper system (23) is connected to the timing belt (22) and can move horizontally under the drive of the timing belt (22); the slide rail drive system (26) is installed on the fixed structure (25) and is used to drive the bag opening guide mechanism (3) to move up and down.

4. The sealing system for a packaging machine according to claim 3, characterized in that, The gripper system (23) includes: a support frame, grippers, a driving cylinder, a photoelectric sensor, and a drag chain; wherein, the support frame is fixed on the synchronous belt (22) through a toothed plate, converting the rotational motion of the pulley drive system (24) into a horizontal motion; the driving cylinder is installed on the support frame and connected to the grippers to drive the opening / closing of the grippers; the photoelectric sensor is installed on the support frame to sense the opening / closing state of the grippers and provide a control signal for the slide rail drive system (26); the drag chain is installed on the support frame for arranging the cables and air pipes supporting the gripper system (23).

5. The sealing system for a packaging machine according to claim 3, characterized in that, The pulley drive system (24) includes: a servo motor A and a reducer B; wherein, the servo motor A is coaxially connected to the reducer B; the reducer B is connected to the fixed structure (25) by bolts.

6. The sealing system for a packaging machine according to claim 3, characterized in that, The slide rail drive system (26) includes: a servo motor B, a reducer C, a lead screw, and a lead screw slider; wherein, the servo motor B, the reducer C, and the lead screw are coaxially connected; the reducer C is connected to the fixed structure (25) by bolts; the lead screw slider is installed on the lead screw; the lead screw slider is connected to the bag mouth guiding mechanism (3); when the servo motor B works, after being decelerated by the reducer C, it drives the lead screw to act, providing power for the up and down movement of the lead screw slider, and further driving the up and down movement of the bag mouth guiding mechanism (3).

7. The sealing system for a packaging machine according to claim 3, characterized in that, The bag mouth guiding mechanism (3) includes: a drive system (31), a support structure B (32), a left guiding conveyor (33), a right guiding conveyor (34), a linear slider (35), and a cylinder assembly (36); wherein, the linear slider (5) is installed at the rear side of the support structure B (32) and connected to the packaging machine frame (5) by bolts to fix the bag mouth guiding mechanism (3); the drive system (31) is installed above the support structure B (32) to provide driving force for the movement of the left guiding conveyor (33) and the right guiding conveyor (34); the left guiding conveyor (33) and the right guiding conveyor (34) are installed below the support structure B (32) to drive the movement of the bag mouth of the packaging bag under the driving force provided by the drive system (31); the cylinder assembly (6) is installed at the lower side of the support structure (2) to drive the right guiding conveyor (4) to move in a circumferential direction to clamp the bag mouth of the packaging bag.

8. The sealing system for a packaging machine according to claim 7, wherein The support structure B (32) includes: a box-shaped structure (321), a support plate (322), and a triangular frame (323); wherein, the box-shaped structure (321) is located at the upper left side, the triangular frame (323) is located at the lower right side, and the box-shaped structure (321) and the triangular frame (323) are connected and fixed by the support plate (322). The linear slider (35) is connected to the triangular frame (323) by bolts and is located at the rear side position of the triangular frame (323). The cylinder assembly (36) is located below the triangular frame (323), one side is connected to the triangular frame (323) through a spherical plain bearing, and the other side is connected to the right guiding conveyor (34) through a pull plate. The left-inlet conveyor (33) includes: a left-inlet conveyor transmission mechanism, a left-inlet conveyor support arm, and a left-inlet conveyor guide chain; wherein, the left-inlet conveyor support arm is an L-shaped structure, located below the box-shaped structure (321) and on the side of the tripod (323); the left-inlet conveyor transmission mechanism is installed on the left-inlet conveyor support arm; the left-inlet conveyor guide chain is installed at the bottom of the left-inlet conveyor support arm; the left-inlet conveyor transmission mechanism includes: a left-inlet conveyor gear (331), a left-inlet conveyor deep groove ball bearing (332), and a left-inlet conveyor drive shaft (333); wherein, the left-inlet conveyor gear (331) and the left-inlet conveyor drive shaft (333) are connected by a key; the left-inlet conveyor deep groove ball bearing (332) is fixed on the left-inlet conveyor drive shaft (333) by a shoulder; the left-inlet conveyor guide chain is driven by the left-inlet conveyor drive shaft (333); The right-inlet conveyor (34) includes: a right-inlet conveyor transmission mechanism, a right-inlet conveyor support arm, and a right-inlet conveyor guide chain; wherein, the right-inlet conveyor support arm is an L-shaped structure, located below the box-shaped structure (321) and on the side of the tripod (323); the right-inlet conveyor transmission mechanism is installed on the right-inlet conveyor support arm; the right-inlet conveyor guide chain is installed at the bottom of the right-inlet conveyor support arm; the right-inlet conveyor transmission mechanism includes: a right-inlet conveyor gear (341), an angular contact ball bearing (342), and a right-inlet conveyor guide chain. The system includes a deep groove ball bearing (343) for the inlet conveyor and a drive shaft (344) for the right inlet conveyor; the right inlet conveyor gear (341) is connected to the right inlet conveyor drive shaft (344) by a key; the angular contact ball bearing (342) and the right inlet conveyor deep groove ball bearing (343) are fixed on the right inlet conveyor drive shaft (344) by a shoulder; the right inlet conveyor gear (341) meshes with the left inlet conveyor gear (331); the right inlet conveyor chain is driven by the right inlet conveyor drive shaft (344); The drive system (31) includes a drive motor B (311) and a reducer D (312); wherein the drive motor B (311) is connected to the reducer D (312); the reducer D (312) is mounted on the box structure (321) and is connected to the box structure (321) by bolts; the driving force output by the drive motor B (311) is reduced by the reducer D (312) and then acts on the left guide conveyor chain and the right guide conveyor chain, driving the left guide conveyor chain and the right guide conveyor chain to move, thereby driving the movement of the bag opening of the packaging bag.

9. The sealing system for a packaging machine according to claim 7, characterized in that, The sewing machine system (4) includes: a folding machine, a sewing machine and a cutting system; wherein, the folding machine is located between the bag opening guide mechanism (3) and the sewing machine, and is used to fold and fix the bag opening of the packaging bag; the sewing machine is used to sew the bag opening folded by the folding machine; the cutting system is located at the end of the sewing machine and is used to cut the sewing thread after sewing.

10. A control method for a sealing system of a packaging machine, characterized in that, include: S1, initialization settings, including: setting the initial position A and bag clamping position of the bag opening clamping mechanism (2) and the initial position B of the bag opening guiding mechanism (3) according to different bag opening heights; S2, control the bag mouth clamping mechanism (2) to move to the initial position A, clamp the packaging bag, and clamp the packaging bag to the clamping position; S3, after entering the bag clamping position, control the bag mouth clamping mechanism (2) to release the clamping of the packaging bag, and the bag mouth guiding mechanism (3) moves down to cooperate with the conveyor chain plate machine (1) to realize the clamping of the bag mouth of the packaging bag and to convey the packaging bag to the sewing position; S4, control the sewing machine system (4) to complete the sewing of the bag opening, and the packaging is finished.

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