A heat sealing mechanism of a nonwoven fabric bag making machine

Abstract

The utility model discloses a hot sealing mechanism of non -woven fabric bag making machine belongs to non -woven fabric bag making machine technical field, including hot sealing frame, be equipped with hot sealing servo motor, guide component and hot sealing block on hot sealing frame, and one end of guide component is linked with hot sealing servo motor, and the other end is linked with hot sealing block, and hot sealing servo motor moves hot sealing block along guide component axle line direction through guide component. Hot sealing mechanism takes hot sealing servo motor as drive source, and hot sealing servo motor moves hot sealing block through guide component, makes hot sealing block when ironing the handle can continue stable heat sealing, and can realize accurate control to ironing handle pressure and time through control hot sealing servo motor, realizes the quick adjustment of hot sealing mechanism, effectively reduced the scrap rate when ironing the handle, guaranteed the quality and precision of ironing the handle, in addition hot sealing mechanism can adapt to the ironing handle demand of non -woven fabric bag of different material quality, thickness and size.

Description

Technical Field

[0001] This utility model relates to the field of nonwoven bag making machine technology, specifically to a heat sealing mechanism for a nonwoven bag making machine. Background Technology

[0002] Non-woven bags are environmentally friendly and practical, leading to their widespread adoption and thus the rapid development of non-woven bag making machine technology. These non-woven bags typically consist of a bag body and a handle, with the handle attached to the bag body via heat stamping. The machine that heat-stamps the handle onto the bag body is called a heat-stamping handle machine.

[0003] Chinese utility model patent publication number "CN217597968U" discloses a hot-pressing device for a non-woven bag making machine, including a frame. A handle unwinding mechanism is erected on the upper end of the frame. A mounting base is provided at the bottom of the frame. An edge-binding mechanism and a swing arm assembly are respectively provided on both sides of the mounting base. A cutting mechanism, a material pulling mechanism, and a rotating handle mechanism are arranged in sequence along the transverse direction in the middle of the frame. The cutting mechanism and the swing arm assembly are located on the same side. A hot-pressing mechanism is provided in the middle of the rotating handle mechanism. The hot-pressing mechanism includes a heat-sealing mold assembly installed below the upper end of the frame and two sets of ultrasonic welding heads corresponding to it. The heat-sealing mold assembly includes a heat-sealing cylinder fixedly installed on the frame and a heat-sealing mounting base linked to the heat-sealing cylinder.

[0004] However, the above-mentioned ironing device still has the following drawbacks: First, the extension and retraction speed and pressure adjustment accuracy of the heat sealing cylinder are poor. When adjusting the cylinder, the heat-sealing mechanism is prone to excessive heat-sealing pressure, which means that the cylinder cannot be adjusted to the required pressure state, resulting in the cloth bag being scorched or even burned through, resulting in a high scrap rate of cloth bags, greatly reducing production efficiency and failing to meet the high-speed production of cloth bags.

[0005] Secondly, the heat sealing time and heat sealing pressure will vary for bags and handles made of different materials. Different heat sealing parameters need to be set according to different materials during production. However, the adjustment of the heat sealing cylinder is cumbersome and complicated, making it difficult to meet the need for quick adjustment of the ironing mechanism parameters.

[0006] Third, during continuous use, the heating time and pressure of the heating mechanism may fluctuate, resulting in inconsistent heating of the handles of multiple bags.

[0007] Therefore, it is necessary to improve upon the aforementioned shortcomings. Utility Model Content

[0008] The purpose of this invention is to provide a heat-sealing mechanism for a nonwoven bag making machine that provides a highly efficient and stable ironing handle, can meet the needs of various fabric bag ironing handles, and can control the ironing handle speed and pressure, so as to solve the above-mentioned problems existing in the prior art.

[0009] To achieve the above objectives, the technical solution adopted by this utility model is: a heat sealing mechanism for a nonwoven bag making machine, including a heat sealing frame, characterized in that: a heat sealing servo motor, a guide component, and a heat sealing block are provided on the heat sealing frame, one end of the guide component is linked to the heat sealing servo motor, and the other end is linked to the heat sealing block, and the heat sealing servo motor causes the heat sealing block to move along the axial direction of the guide component through the guide component.

[0010] By adopting the above technical solution: the heat-sealing mechanism uses a heat-sealing servo motor as the drive source. The heat-sealing servo motor drives the heat-sealing block to move through the guide component, so that the heat-sealing block can be continuously and stably heat-sealed during the ironing process. Furthermore, by controlling the heat-sealing servo motor, the ironing pressure and time can be precisely controlled, enabling rapid adjustment of the heat-sealing mechanism. This effectively reduces the scrap rate during ironing and ensures the quality and precision of the ironed bag. In addition, because the heat-sealing pressure and time of the heat-sealing servo motor can be quickly adjusted and efficiently controlled, the heat-sealing mechanism can adapt to the ironing needs of non-woven bags of different materials, thicknesses, and sizes.

[0011] The heat sealing mechanism of the aforementioned nonwoven bag making machine can be further configured as follows: the output end of the heat sealing servo motor is linked to a rotating component, the rotating component is eccentrically linked to a swing arm, and the swing arm is linked to the guide assembly.

[0012] By adopting the above technical solution: the heat sealing servo motor drives the swing arm to move the guide component through the eccentric linkage of the rotating component, so that the circumferential rotation of the heat sealing servo motor is converted into the axial movement of the guide component, and then the heat sealing block moves up and down, ensuring that the contact and separation between the heat sealing block and the working surface is more precise and stable.

[0013] The heat sealing mechanism of the above-mentioned nonwoven bag making machine can be further configured as follows: a linkage is eccentrically provided on the end face of the rotating part, a driven part is provided on the guide assembly, one end of the swing arm is rotatably connected to the linkage and the other end is rotatably connected to the driven part, and the swing arm is also provided with a rotating bearing.

[0014] By adopting the above technical solution: the linkage and driven parts are connected by a swing arm, and the circumferential rotation of the rotating part is converted into the axial movement of the guide component by the swing arm. The movement of the guide component is more efficient and accurate, which effectively improves the stability and reliability of the hot-seal process. At the same time, the connection between the swing arm and the linkage, and the connection between the swing arm and the driven part are equipped with rotating bearings. The rotating bearings reduce the friction of the swing arm during rotation and improve the smoothness of the heat-sealing movement of the heat-sealing mechanism.

[0015] The heat sealing mechanism of the above-mentioned nonwoven bag making machine can be further configured as follows: the guide assembly includes a guide slide rail on the heat sealing frame, a guide slider that slides with the guide slide rail, and a guide plate that is linked with the guide slider. A guide seat is linked to the end of the guide plate. The heat sealing block is linked with the guide seat. The guide plate is also provided with a reinforcing plate. The end of the reinforcing plate is fixedly connected to the guide seat. A driven member is provided at the end of the guide plate. The heat sealing servo motor can drive the guide plate to slide up and down along the axis of the guide slide rail through the swing arm.

[0016] By adopting the above technical solution, the guide rail provides precise guidance for the guide plate, ensuring its smooth sliding in the vertical direction, thereby driving the heat sealing block to achieve precise up and down movement. This prevents the heat sealing block from deviating during movement and improves the stability of the heat sealing mechanism during the hot-pressing process. The guide seat at the end of the guide plate improves the stability of the connection between the heat sealing block and the guide assembly, and the addition of a reinforcing plate on the end face of the guide plate further improves the firmness between the guide seat and the guide plate, thus improving the stability of the guide assembly structure.

[0017] The heat sealing mechanism of the above-mentioned nonwoven bag making machine can be further configured as follows: a counting switch is provided at the end of the heat sealing frame, and a counting rod that is linked to the counting switch is provided on the rotating part.

[0018] By adopting the above technical solution: when the rotating part rotates, it will drive the counting rod to rotate. The counting rod is initially on the same axis as the counting switch. When the counting rod rotates one revolution, the counting switch counts by one, which can accurately count the number of times the handle is heated and avoid errors caused by manual counting.

[0019] The heat sealing mechanism of the above-mentioned nonwoven bag making machine can be further configured as follows: the rotating part has a mounting hole, the output end of the heat sealing servo motor passes through the mounting hole, the output end has a snap-fit ​​key, the rotating part passes through the mounting hole and has a snap-fit ​​groove, the snap-fit ​​groove has a snap-fit ​​block, one side of the snap-fit ​​block is located in the snap-fit ​​groove and the other side is located in the snap-fit ​​key.

[0020] By adopting the above technical solution: the snap-fit ​​block is inserted into the mounting hole through the snap-fit ​​groove. Since the snap-fit ​​key on the heat-sealing servo motor and the snap-fit ​​groove are on the same axis, the snap-fit ​​block can be inserted into both the snap-fit ​​groove and the snap-fit ​​key at the same time, so as to achieve a stable connection between the rotating part and the output end. At the same time, it prevents the rotating part from detaching from the heat-sealing servo motor when rotating continuously, thereby improving the tightness and stability of the connection between the rotating part and the heat-sealing servo motor.

[0021] The heat sealing mechanism of the above-mentioned nonwoven bag making machine can be further configured as follows: the heat sealing frame is also provided with a fixed plate, the fixed plate is provided with a horizontal slider, the heat sealing mechanism slides with the hot-seal machine through the horizontal slider, and the heat sealing frame is provided with a support plate for supporting the fixed plate.

[0022] By adopting the above technical solution: the heat sealing mechanism slides and engages with the transverse slide rail on the hot handle machine through the transverse block, allowing the heat sealing mechanism to move relative to the hot handle machine, thereby adjusting the heat sealing of handles of different lengths and improving the applicability of the heat sealing mechanism. In addition, the support plate and the fixed plate are fixedly connected on the side away from the transverse slide block, and the side wall is fixedly connected to the heat sealing frame, which can support the heat sealing frame and the fixed plate, prevent the heat sealing mechanism from detaching from the hot handle machine, and improve the stability of the heat sealing mechanism.

[0023] The heat sealing mechanism of the above-mentioned nonwoven bag making machine can be further configured as follows: the heat sealing mechanism is also provided with a pressure holding component, the pressure holding component includes a pressure holding frame and a pressure holding element provided on the pressure holding frame, the pressure holding element is fixedly connected to the guide component, one end of the pressure holding frame is linked with the pressure holding element and the other end is fixedly connected to the heat sealing block.

[0024] By adopting the above technical solution: when the heat-sealing servo motor drives the guide assembly to move, the pressure-holding component can maintain the pressure of the heat-sealing mechanism, keeping the pressure of the heat-sealing mechanism stable. In addition, when the heat-sealing servo motor works abnormally, the pressure-holding component can separate the heat seal from the working surface, preventing machine damage caused by excessive contact of the heat-sealing block, extending the service life of the heat-sealing mechanism. At the same time, adjusting the pressure-holding value of the pressure-holding component can adjust the pressure of the heat-sealing mechanism, realizing multi-mode adjustment of the heat-sealing pressure and improving the applicability of the heat-sealing mechanism.

[0025] The heat sealing mechanism of the above-mentioned nonwoven bag making machine can be further configured as follows: the pressure holding frame includes a fixed seat and a connecting seat. The fixed seat is fixedly connected to the pressure holding component, the connecting seat is fixedly connected to the pressure holding rod of the pressure holding component, the heat sealing block is fixedly connected to the connecting seat, the fixed seat is also provided with a connecting hole, a sleeve is inserted into the connecting hole, and the connecting seat is provided with a connecting rod that is slidably fitted with the sleeve.

[0026] By adopting the above technical solution: the fixed seat is fixedly connected to the pressure-holding component, and the pressure-holding rod is fixedly connected to the connecting seat. When the heat sealing block is heat-sealed, if the heat sealing pressure is low, the pressure-holding component pushes the pressure-holding rod to make the heat sealing pressure reach the pre-value. If the heat sealing pressure is too high, the pressure-holding component reduces the pressure on the pressure-holding rod, thereby reducing the pressure of the heat sealing servo motor on the heat sealing block and restoring it to the pre-value. At the same time, it reduces the scrap rate caused by high heat sealing pressure and the impact on the heat sealing servo motor, effectively extending the service life of the heat sealing mechanism. In addition, the connecting rod on the connecting seat and the sleeve on the fixed seat slide together, which can prevent the connecting seat and the fixed seat from shifting when the pressure-holding rod applies pressure to the connecting seat, thus improving the stability of the pressure-holding component.

[0027] The heat sealing mechanism of the above-mentioned nonwoven bag making machine can be further configured as follows: the pressure holding frame is also provided with a mounting seat, and several mounting rods are provided between the mounting seat and the connecting seat. The connecting seat is provided with a limit bolt, and the mounting seat is provided with a limit component. The limit component is linked with the limit bolt. The mounting seat has a through mounting groove, and the heat sealing block has a fixing hole at its end. The mounting groove is provided with a fixing bolt, which is threaded to the fixing hole. The fixing bolt is provided with a washer, one side of which abuts against the fixing bolt, and the other end abuts against the end face of the mounting seat.

[0028] By adopting the above technical solution: the heat-sealing block is fixedly connected to the mounting base by a fixing bolt. The mounting groove allows the heat-sealing block to be adjusted to a fixed position on the mounting base, thus ensuring precise contact with the working surface. The gasket further improves the firmness of the connection between the heat-sealing block and the mounting base. At the same time, the mounting base and the connecting base are fixedly connected by multiple mounting rods, leaving a gap between the heat-sealing block and the pressure-holding component. This prevents the heat from being conducted from the heat-sealing block to the pressure-holding component through the connecting base during heat sealing, reducing the failure rate of the pressure-holding component. Furthermore, the mounting base further improves the heat dissipation efficiency of the heat-sealing block, reducing the conduction rate between parts during heat sealing and increasing the service life of the heat sealing mechanism. In addition, by adjusting the position of the mounting base on the mounting rod, the height of the pressure-holding frame can be adjusted, thereby adjusting the movement distance of the heat-sealing block. The limiting bolt on the connecting base and the limiting component on the mounting base cooperate with each other to prevent the mounting base from fitting too closely to the connecting base, reducing heat transfer during heat sealing and improving the stability of the pressure-holding component mechanism.

[0029] The beneficial effects of this utility model are as follows: First, the heat sealing mechanism uses a heat sealing servo motor as its power source. The heat sealing servo motor drives the guide plate to move up and down through the rotation of the swing arm, realizing the contact and separation between the heat sealing block and the working surface, thereby heat sealing and fixing the handle to the non-woven fabric. Compared with the method of using a cylinder as a power source, the heat sealing servo motor can accurately control the heat sealing pressure, preventing the heat sealing block from being burned through or charred due to excessive heat sealing pressure, which significantly improves the stability and effectiveness of the heat sealing mechanism.

[0030] Secondly, the heat sealing mechanism combined with the pressure holding component can further improve the stability of pressure during heat sealing, while preventing the heat sealing block from vibrating or shifting during the heat sealing process, improving the uniformity of the hot handle. In addition, when the heat sealing servo motor malfunctions, the pressure holding component can reduce the pressure on the pressure holding rod, preventing machine damage caused by excessive contact between the heat sealing block and the pressure head mechanism, and effectively extending the service life of the hot handle mechanism.

[0031] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the heat sealing mechanism of this utility model; Figure 2 This is a schematic diagram showing the disassembled heat sealing mechanism of this utility model; Figure 3 This is a schematic diagram of the structure of the heat-sealed servo motor and transmission component of this utility model; Figure 4 This is a schematic diagram showing the disassembled pressure-holding component of this utility model; Labeling notes: 1. Heat sealing frame, 11. Counting switch, 12. Fixing plate, 13. Horizontal slider, 14. Support plate, 2. Heat sealing servo motor, 2. Rotating component, 21. Linkage component, 22. Counting rod, 23. Mounting hole, 24. Snap-fit ​​groove, 25. Snap-fit ​​key, 26. Guide assembly, 3. Follower, 31. Guide slide rail, 32. Guide slider, 33. Guide plate, 34. Guide seat, 35. Reinforcing plate, 36. Heat sealing block, 4. Fixing hole, 41. Swing arm, 5. Rotating bearing, 51. Pressure holding assembly, 6. Pressure holding frame, 61. Fixing seat, 611. Connecting hole, 6111. Sleeve, 6112. Connecting seat, 6121. Connecting rod, 6122. Limit bolt, 6122. Mounting seat, 6131. ​​Mounting rod, 6132. Mounting groove, 6133. Fixing bolt, 6134. Limiting component, 6135. Pressure holding component, 62. Pressure holding rod, 621. Detailed Implementation

[0033] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0034] A heat-sealing mechanism for a nonwoven bag making machine includes a heat-sealing frame 1, on which a heat-sealing servo motor 2, a guide assembly 3, and a heat-sealing block 4 are mounted. One end of the guide assembly 3 is linked to the heat-sealing servo motor 2, and the other end is linked to the heat-sealing block 4. The heat-sealing servo motor 2 causes the heat-sealing block 4 to move along the axis of the guide assembly 3 through the guide assembly 3. The heat-sealing mechanism uses the heat-sealing servo motor 2 as a drive source. The heat-sealing servo motor 2 drives the heat-sealing block 4 to move through the guide assembly 3, enabling the heat-sealing block 4 to continuously and stably heat-seal during the ironing process. Furthermore, by controlling the heat-sealing servo motor 2, the ironing pressure and time can be precisely controlled, allowing for rapid adjustment of the heat-sealing mechanism. This effectively reduces the scrap rate during ironing, ensuring the quality and precision of the ironed bag. In addition, because the heat-sealing pressure and time of the heat-sealing servo motor 2 can be quickly adjusted and efficiently controlled, the heat-sealing mechanism can adapt to the ironing requirements of nonwoven bags of different materials, thicknesses, and sizes.

[0035] The output end of the heat-sealing servo motor 2 is linked to a rotating component 21, which is eccentrically linked to a swing arm 5. The swing arm 5 is linked to the guide assembly 3. The heat-sealing servo motor 2 drives the swing arm 5 through the eccentric linkage of the rotating component 21, thereby moving the guide assembly 3. This transforms the circumferential rotation of the heat-sealing servo motor 2 into the axial movement of the guide assembly 3, which in turn causes the heat-sealing block 4 to move up and down, ensuring more precise and stable contact and separation between the heat-sealing block 4 and the working surface.

[0036] A linkage 22 is eccentrically mounted on the end face of the rotating component 21, and a driven component 31 is provided on the guide assembly 3. One end of the swing arm 5 is rotatably connected to the linkage 22, and the other end is rotatably connected to the driven component 31. The swing arm 5 is also provided with a rotary bearing 51. The linkage 22 and the driven component 31 are connected through the swing arm 5. The circumferential rotation of the rotating component 21 is converted into the axial movement of the guide assembly 3 through the swing arm 5. The movement of the guide assembly 3 is more efficient and accurate, effectively improving the stability and reliability of the hot-seal process. At the same time, rotary bearings 51 are provided at the connection points between the swing arm 5 and the linkage 22, and between the swing arm 5 and the driven component 31. The rotary bearings 51 reduce the friction of the swing arm 5 during rotation and improve the smoothness of the heat-sealing movement of the heat-sealing mechanism.

[0037] The guide assembly 3 includes a guide rail 32 mounted on the heat sealing frame 1, a guide slider 33 that slides with the guide rail 32, and a guide plate 34 that is linked with the guide slider 33. The end of the guide plate 34 is provided with a guide seat 35. The heat sealing block 4 is linked with the guide seat 35. The guide plate 34 is also provided with a reinforcing plate 36. The end of the reinforcing plate 36 is fixedly connected to the guide seat 35. The driven member 31 is located at the end of the guide plate 34. The heat sealing servo motor 2 can drive the guide plate 34 to slide up and down along the axis of the guide rail 32 through the swing arm 5. The guide rail 32 provides precise guidance for the guide plate 34, ensuring its smooth sliding in the vertical direction, thereby driving the heat sealing block 4 to achieve precise up and down movement. This prevents the heat sealing block 4 from deviating during movement and improves the stability of the heat sealing mechanism during the hot handle process. The guide seat 35 at the end of the guide plate 34 improves the stability of the connection between the heat sealing block 4 and the guide assembly 3. Furthermore, a reinforcing plate 36 is added to the end face of the guide plate 34, which further improves the firmness between the guide seat 35 and the guide plate 34 and enhances the structural stability of the guide assembly 3.

[0038] A counting switch 11 is provided at one end of the heat sealing frame 1, and a counting rod 23 linked to the counting switch 11 is provided on the rotating part 21. When the rotating part 21 rotates, it will drive the counting rod 23 to rotate. The counting rod 23 is initially on the same axis as the counting switch 11. When the counting rod 23 rotates one revolution, the counting switch 11 counts by one, which can accurately count the number of times the handle is heated and avoid errors caused by manual counting.

[0039] The rotating component 21 has a mounting hole 24. The output end of the heat-sealing servo motor 2 passes through the mounting hole 24 and has a locking key 26. The rotating component 21 passes through the mounting hole 24 and has a locking groove 25. A locking block passes through the locking groove 25, with one side of the locking block located in the locking groove 25 and the other side located in the locking key 26. The locking block passes through the locking groove 25 into the mounting hole 24. Since the locking key 26 at the output end and the locking groove 25 are on the same axis, the locking block can simultaneously pass into the locking groove 25 and the locking key 26, achieving a stable connection between the rotating component 21 and the output end. This also prevents the rotating component 21 from detaching from the heat-sealing servo motor 2 during continuous rotation, improving the tightness and stability of the connection between the rotating component 21 and the heat-sealing servo motor 2.

[0040] The heat-sealing frame 1 is also equipped with a fixed plate 12, on which a horizontal slider 13 is provided. The heat-sealing mechanism slides with the hot-seal hand-handling machine through the horizontal slider 13. The heat-sealing frame 1 is also equipped with a support plate 14 for supporting the fixed plate 12. The heat-sealing mechanism slides with the horizontal slider on the hot-seal hand-handling machine through the horizontal slider, allowing the heat-sealing mechanism to move relative to the hot-seal hand-handling machine, thereby adjusting the heat sealing of handles of different lengths and improving the applicability of the heat-sealing mechanism. In addition, the support plate 14 is fixedly connected to the bottom of the fixed plate 12 and its side wall is fixedly connected to the heat-sealing frame 1, which can support the heat-sealing frame 1 and the fixed plate 12, prevent the heat-sealing mechanism from detaching from the hot-seal hand-handling machine, and improve the stability of the heat-sealing mechanism.

[0041] The heat sealing mechanism also includes a pressure holding component 6, which comprises a pressure holding frame 61 and a pressure holding element 62 mounted on the pressure holding frame 61. The pressure holding element 62 is linked to the guide component 3. One end of the pressure holding frame 61 is linked to the pressure holding element 62, and the other end is linked to the heat sealing block 4. When the heat sealing servo motor 2 drives the guide component 3 to move, the pressure holding element 62 can maintain the pressure of the heat sealing mechanism, keeping the pressure of the heat sealing mechanism stable. In addition, when the heat sealing servo motor 2 malfunctions, the pressure holding element 62 can detach the heat sealing block from the working surface, preventing machine damage caused by excessive contact with the heat sealing block 4 and extending the service life of the heat sealing mechanism. At the same time, adjusting the pressure holding value of the pressure holding element 62 can adjust the pressure of the heat sealing mechanism, realizing multi-mode adjustment of the heat sealing pressure and improving the applicability of the heat sealing mechanism.

[0042] The pressure holding bracket 61 includes a fixed base 611 and a connecting base 612. The fixed base 611 is fixedly connected to the pressure holding component 62, and the connecting base 612 is fixedly connected to the pressure holding rod 621 of the pressure holding component 62. The heat sealing block 4 is fixedly connected to the connecting base 612. The fixed base 611 is also provided with a connecting hole 6111, and a sleeve 6112 is inserted into the connecting hole 6111. The connecting base 612 is provided with a connecting rod 6121 that is slidably engaged with the sleeve 6112. The fixed seat 611 is fixedly connected to the pressure holding member 62. The pressure holding rod 621 passes through the fixed seat 611 and is linked with the connecting seat 612. When the heat sealing block 4 is heat-sealed, when the heat sealing pressure is small, the pressure holding member 62 pushes the pressure holding rod 621, and the pressure holding rod 621 applies force to the connecting seat 612 to make the heat sealing pressure reach the pre-value. When the heat sealing pressure is too large, the pressure holding rod 621 retracts, reducing the pressure of the heat sealing servo motor 2 on the heat sealing block 4 and restoring it to the pre-value. At the same time, it reduces the scrap rate caused by the large heat sealing pressure and the impact on the heat sealing servo motor 2, effectively extending the service life of the heat sealing mechanism. In addition, the connecting rod 6121 on the connecting seat 612 slides with the sleeve 6112 on the fixed seat 611, which can prevent the connecting seat 612 and the fixed seat 611 from shifting when the pressure holding rod 621 moves, thus improving the stability of the movement of the pressure holding rod 621.

[0043] The pressure holding frame 61 is also provided with a mounting base 613. Several mounting rods 6131 are provided between the mounting base 613 and the connecting base 612. The connecting base 612 is provided with a limit bolt 6122. The mounting base 613 is provided with a limit member 6134. The limit member 6134 is linked with the limit bolt 6122. The mounting base 613 has a through mounting groove 6132. The heat sealing block 4 has a fixing hole 41 at its end. The mounting groove 6132 is provided with a fixing bolt 6133. The fixing bolt 6133 is threaded to the fixing hole 41. The fixing bolt 6133 is provided with a washer 6135. One side of the washer 6135 abuts against the fixing bolt 6133, and the other end abuts against the end face of the mounting base 613. The heat-sealing block 4 is fixedly connected to the mounting base 613 via a fixing bolt 6133. The mounting groove 6132 allows the heat-sealing block 4 to be adjusted to a fixed position on the mounting base 613, thereby ensuring precise contact with the working surface. The washer 6135 further enhances the firmness of the connection between the heat-sealing block 4 and the mounting base 613. Meanwhile, the mounting base 613 and the connecting base 612 are fixedly connected via multiple mounting rods 6131, leaving a gap between the heat-sealing block 4 and the pressure-holding component 62. This prevents the heat-sealing block 4 from transferring heat to the pressure-holding component 62 through the connecting base 612 during heat sealing, reducing the failure rate of the pressure-holding component 62. Furthermore, the mounting base 613 further improves the heat dissipation efficiency of the heat-sealing block 4, reducing the conduction rate between parts during heat sealing and extending the service life of the heat-sealing mechanism.

[0044] Furthermore, by adjusting the position of the mounting base 613 on the mounting rod 6131, the height of the pressure holding bracket 61 can be adjusted, thereby adjusting the movement distance of the heat sealing block 4. The limiting bolt 6122 on the connecting base 612 and the limiting member 6134 on the mounting base 613 cooperate with each other to prevent the mounting base 613 from being too close to the connecting base 612, thereby reducing heat transfer during heat sealing and improving the stability of the pressure holding assembly 6. The working principle of this embodiment is as follows: When the handle and non-woven fabric are placed overlapping on the working surface, the heat-sealing servo motor 2 drives the transmission component to rotate, and the eccentric movement of the swing arm 5 causes the guide plate 34 to slide downward relative to the heat-sealing frame 1, so that the heat-sealing block 4 and the pressure head are attached to the non-woven fabric and the handle on both sides and heat sealing begins. When the rotating component 21 rotates, the pressure holding component 6 maintains a stable heat sealing pressure on the heat-sealing block 4 through the pressure holding component 62. Then the rotating component 21 is reset, so that the heat-sealing block 4 is separated from the non-woven fabric, realizing precise control of heat sealing pressure and heat sealing time. At the same time, the counting rod 23 rotates one revolution, and the counting switch 11 recognizes the counting rod 23 and the count of the hot handle increases.

Claims

1. A heat-sealing mechanism for a nonwoven bag making machine, comprising a heat-sealing frame, characterized in that: The heat sealing frame is equipped with a heat sealing servo motor, a guide assembly, and a heat sealing block. One end of the guide assembly is linked to the heat sealing servo motor, and the other end is linked to the heat sealing block. The heat sealing servo motor causes the heat sealing block to move along the axis of the guide assembly through the guide assembly.

2. The heat-sealing mechanism of the nonwoven bag making machine according to claim 1, characterized in that: The output end of the heat-sealing servo motor is linked to a rotating component, the rotating component is eccentrically linked to a swing arm, and the swing arm is linked to a guide assembly.

3. The heat-sealing mechanism of the nonwoven bag making machine according to claim 2, characterized in that: The rotating component has an eccentrically arranged linkage on its end face, the guide assembly has a driven component, one end of the swing arm is rotatably connected to the linkage and the other end is rotatably connected to the driven component, and the swing arm is also provided with a rotating bearing.

4. The heat-sealing mechanism of the nonwoven bag making machine according to claim 3, characterized in that: The guiding assembly includes a guide rail mounted on a heat sealing frame, a guide slider that slides with the guide rail, and a guide plate that is linked with the guide slider. The guide plate has a guide seat at its end, which is linked with the heat sealing block. The guide plate is also linked with a reinforcing plate, the end of which is riveted to the guide seat. The driven member is located at the end of the guide plate. The heat sealing servo motor can drive the guide plate to slide up and down along the axis of the guide rail via a swing arm.

5. The heat-sealing mechanism of the nonwoven bag making machine according to claim 4, characterized in that: The heat sealing frame is equipped with a counting switch at its end, and the rotating component is equipped with a counting rod that is linked to the counting switch.

6. The heat-sealing mechanism of the nonwoven bag making machine according to claim 4, characterized in that: The rotating component has a mounting hole, the output end of the heat-sealing servo motor passes through the mounting hole, the output end has a snap-fit ​​key, the rotating component has a snap-fit ​​groove through the mounting hole, the snap-fit ​​groove has a snap-fit ​​block, one side of the snap-fit ​​block is located in the snap-fit ​​groove and the other side is located in the snap-fit ​​key.

7. The heat-sealing mechanism of the nonwoven bag making machine according to claim 6, characterized in that: The heat sealing frame is also provided with a fixing plate, and the fixing plate is provided with a horizontal slider. The heat sealing mechanism is slidably engaged with the hot ironing machine through the horizontal slider. The heat sealing frame is provided with a support plate for supporting the fixing plate.

8. The heat-sealing mechanism of the nonwoven bag making machine according to any one of claims 1 to 7, characterized in that: The heat sealing mechanism is further provided with a pressure holding component, which includes a pressure holding frame and a pressure holding element disposed on the pressure holding frame. The pressure holding element is linked with the guide component, and one end of the pressure holding frame is linked with the pressure holding element and the other end is linked with the heat sealing block.

9. The heat-sealing mechanism of the nonwoven bag making machine according to claim 8, characterized in that: The pressure holding frame includes a fixed base and a connecting base. The fixed base is riveted to the pressure holding component. The output end of the pressure holding component is provided with a pressure holding rod. The connecting base is linked with the pressure holding rod. The heat sealing block is linked with the connecting base. The fixed base also has a connecting hole. A sleeve passes through the connecting hole. The connecting base is provided with a connecting rod that slides with the sleeve.

10. The heat-sealing mechanism of the nonwoven bag making machine according to claim 9, characterized in that: The pressure holding frame is also provided with a mounting base, and a number of mounting rods are provided between the mounting base and the connecting base. The connecting base is also provided with a limiting bolt, and the mounting base is provided with a limiting component. The limiting component is linked with the limiting bolt. The mounting base has a through mounting groove, and the heat sealing block has a fixing hole at its end. A fixing bolt passes through the mounting groove and is threaded to the fixing hole. A washer passes through the fixing bolt, and one side of the washer abuts against the fixing bolt, while the other end abuts against the end face of the mounting base.

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