Line hooking structure of carton sewing machine
By optimizing the hook structure of the carton sewing machine, precise thread tension control and high-precision needle positioning were achieved, solving problems such as weak sealing, easy thread breakage, and sealing jamming, thus improving carton quality and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-03-10
AI Technical Summary
The existing carton sewing machine's hook-and-loop structure suffers from inaccurate thread tension control, insufficient positioning accuracy of the needle-down mechanism, and poor coordination between the thread-taking mechanism and other mechanisms. This results in weak sealing, easy thread breakage, and jamming during the sealing process, affecting production efficiency and carton quality.
The design of the needle insertion, thread take-up, and thread hooking mechanisms has been optimized. The transmission system driven by a motor precisely controls the thread tension, enhances the needle positioning accuracy, and achieves close cooperation among the various mechanisms. This ensures that the pin penetrates the cardboard box accurately, and the thread hooking mechanism flexibly adjusts the sewing speed and angle.
Precise seam tension control was achieved, which improved the firmness and aesthetics of carton sealing, enhanced sealing and strength, reduced jamming, and significantly improved production efficiency and equipment adaptability.
Smart Images
Figure CN223982228U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to paper box hooking technology field, concretely relates to a hooking structure of paper box sewing machine. BACKGROUND
[0002] In the modern commodity packaging industry, as a widely used packaging material, the use amount of paper box is huge, the paper box has many advantages such as low cost, easy processing and recyclability, can satisfy the packaging demand of different products, however, in order to ensure the integrity and stability of paper box in the process of transportation, storage and use, effective sealing treatment needs to be carried out to paper box, sewing as a reliable and economical paper box sealing mode has important application value, after the production of paper box, the cover and the body need to be connected closely to prevent the internal articles from scattering, getting wet or suffering other damage, sewing can provide high-strength connecting force, so that the paper box still maintains the sealed state when bearing certain pressure and external force impact, from the angle of packaging technology, sewing sealing can be flexibly adjusted according to the size, material and use of paper box, for small paper box, fine sewing can guarantee the delicacy and beauty of sealing, for large paper box or paper box carrying heavy articles, thick line and close needle pitch can provide sufficient strength, and compared with other sealing modes such as adhesive tape sticking, sewing sealing has more advantages in environmental protection, the chemical substances in adhesive tape can pollute the environment, while sewing usually adopts natural fiber or degradable material, conforms to the modern green and environmental protection concept, however, the existing paper box sewing machine has many problems when carrying out hooking operation, which influences the quality and efficiency of sewing, the hooking structure of part of paper box sewing machine cannot accurately control the tension of sewing, leading to that the sewing is too loose to make the paper box sealing not firm, or too tight to cause the sewing to break, the positioning accuracy of needle penetrating mechanism is insufficient, so that the deviation occurs when the needle penetrates the paper box, influences the sealing and appearance of paper box, the coordination between thread picking mechanism and other mechanisms is poor, causes the sealing process to be jammed, and the production efficiency is seriously reduced, therefore, developing a new type of paper box sewing machine hooking structure has important significance for improving the quality of paper box sewing and the overall production level of packaging industry.
[0003] The traditional paper box sewing machine hooking structure has some deficiencies.
[0004] 1) The existing hooking structure can not be accurate in the tension control of sewing, leading to that the sewing is too loose or too tight, the too loose sewing can make the paper box sealing not firm, and the too tight sewing can cause the sewing to break, influence the production efficiency, and also can damage the material of paper box.
[0005] 2) The lower needle mechanism of the partial thread hooking structure has defects in positioning accuracy, and the thimble is prone to deviation when penetrating the carton, which not only affects the appearance of the carton seal, but also may reduce the overall sealing performance and strength of the carton, and the existing thread picking mechanism and the lower needle mechanism and the thread hooking mechanism have poor cooperation ability, and the mechanisms cannot be well matched during operation, resulting in uneven sealing process and frequent jamming, which greatly reduces the production efficiency.
[0006] 3) The general-purpose and interchangeability of the parts of the traditional thread hooking structure are low, and when a part is damaged, a specific part needs to be customized for replacement, which not only increases the maintenance cost, but also prolongs the maintenance time, affecting the normal production and operation of the enterprise. Practical new type content
[0007] The utility model aims at providing a thread hooking structure of a carton seaming machine, which optimizes the design of the lower needle, thread picking and thread hooking mechanisms, precisely controls the thread tension, improves the positioning accuracy of the lower needle, enhances the cooperation of the mechanisms, solves the problems of loose sealing, easy breaking of the thread and operation jamming of the existing thread hooking structure, and improves the carton seaming quality and production efficiency.
[0008] The utility model aims at providing a thread hooking structure of a carton seaming machine, which optimizes the design of the lower needle, thread picking and thread hooking mechanisms, precisely controls the thread tension, improves the positioning accuracy of the lower needle, enhances the cooperation of the mechanisms, solves the problems of loose sealing, easy breaking of the thread and operation jamming of the existing thread hooking structure, and improves the carton seaming quality and production efficiency.
[0009] In another specific embodiment of the utility model, one end of the first transmission shaft is provided with a thread picking mechanism; the thread picking mechanism comprises a driving sliding block, a V-shaped sliding strip is slidably inserted into the inside of the driving sliding block, an installation block is fixedly connected to the outer surface of the V-shaped sliding strip, a threading block is bolted and fixedly connected to the outer surface of the installation block, a rotating shaft is rotatably connected to the inside of the V-shaped sliding strip, and a first fixed plate is fixedly connected to one end of the rotating shaft.
[0010] In another specific embodiment of this utility model, a hooking mechanism is fixedly sleeved on the outer wall of the first transmission column; the hooking mechanism includes a first pulley, a transmission belt is sleeved on the outer wall of the first pulley, a second pulley is connected to the inner wall of the transmission belt, a second transmission column is fixedly inserted inside the second pulley, a rotating column is fixedly connected to one end of the second transmission column, a first bevel gear is fixedly connected to one end of the second transmission column, a second bevel gear meshes with the outer wall of the first bevel gear, a second fixing plate is rotatably connected to the outer surface of the second bevel gear via a shaft, and a hooking device is fixedly connected to one end of the mounting column.
[0011] In another specific embodiment of this utility model, three support columns are fixedly connected to the bottom of the work platform.
[0012] In a further specific embodiment of this utility model, a third bracket is fixedly connected to the top of the work platform, and a limit post is fixedly connected to the outer surface of the third bracket.
[0013] In a further specific embodiment of this utility model, the outer surface of the reciprocating sleeve is fitted onto the outer wall of the limiting post.
[0014] In yet another specific embodiment of this utility model, the top of the second fixing plate is fixedly connected to the bottom of the working platform, and the top of the working platform is fixedly connected to the bottom of the third bracket.
[0015] After adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art: First, precise sewing tension control: Through the optimized thread take-up and hook-up mechanisms working together, the sewing tension can be precisely adjusted, avoiding the problem of loose sewing due to improper tension causing the carton seal to be weak, or excessive tension causing the sewing to break, greatly improving the carton sealing quality and sewing stability. Second, high-precision needle positioning: The uniquely designed needle-down mechanism, with the help of the limiting post for precise guidance, ensures that the needle penetrates the carton accurately, effectively avoiding deviation. This not only improves the aesthetics of the carton seal, but also enhances the overall sealing and strength of the carton. Third, efficient collaborative operation: The needle-down, thread take-up, and hook-up mechanisms work closely together and operate smoothly, significantly reducing jamming during the sewing process, greatly improving production efficiency, reducing equipment failure rate, and helping enterprises increase production capacity and reduce production costs. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present invention;
[0017] Figure 2 for Figure 1 The illustrated embodiment shows a schematic diagram of the base and a three-dimensional structure at another angle.
[0018] Figure 3 for Figure 1 A three-dimensional structural diagram of the needle-feeding mechanism in the illustrated embodiment;
[0019] Figure 4 for Figure 1 A three-dimensional structural breakdown diagram of the needle-feeding mechanism in the illustrated embodiment;
[0020] Figure 5 for Figure 1 A schematic diagram of the cantilever structure of the base and the main frame in the embodiment shown;
[0021] Figure 6 for Figure 1 A schematic diagram of the hooking mechanism between the base and the main frame in the embodiment shown;
[0022] Figure 7 for Figure 1 A schematic diagram of the hooking mechanism between the base and the main frame at another angle in the embodiment shown.
[0023] In the diagram: 1. Working platform; 11. First support; 12. Support column; 13. Support platform; 14. Second support; 15. Third support; 16. Limiting column; 2. Needle insertion mechanism; 201. Motor; 202. First transmission column; 203. Transmission disc; 204. Transmission arm; 205. First transmission shaft; 206. Second transmission shaft; 207. Reciprocating sleeve; 208. Ejector pin; 209. Thread hole; 3. Thread take-up mechanism; 301 302. Drive slider; 303. V-shaped slide bar; 304. Mounting block; 305. Threading block; 306. Rotating shaft; 307. First fixed plate; 4. Threading mechanism; 401. First pulley; 402. Transmission belt; 403. Second pulley; 404. Second transmission column; 405. Rotating column; 406. First bevel gear; 407. Second bevel gear; 408. Second fixed plate; 409. Mounting column; 410. Threading device. Detailed Implementation
[0024] The following detailed description is provided by way of embodiments. However, the description of the embodiments is not intended to limit the present utility model. Any formal but not substantive equivalent transformations made based on the present utility model concept should be considered within the scope of the present utility model's technical solution.
[0025] In the following description, all directional or orientational concepts such as up, down, left, right, front, and back are based on the positions shown in the accompanying drawings, and therefore should not be construed as a special limitation on the technical solution provided by this utility model.
[0026] Please see Figure 1 and Figure 2 And please combine Figure 3 andFigure 4 The diagram illustrates a hook-and-loop structure for a cardboard box sewing machine, comprising: a working platform 1, a first support 11 fixedly connected to the top of the working platform 1, a needle-down mechanism 2 disposed on the top of the first support 11; the needle-down mechanism 2 includes a motor 201, a first transmission column 202 fixedly connected to the output end of the motor 201, a transmission disc 203 fixedly sleeved on the outer wall of the first transmission column 202, a first transmission shaft 205 rotatably connected to the outer wall of the transmission disc 203, a transmission arm 204 fixedly connected to the outer wall of the first transmission shaft 205, a second transmission shaft 206 rotatably connected inside the transmission arm 204, a reciprocating sleeve 207 rotatably connected to one end of the second transmission shaft 206, a pin 208 fixedly connected to the bottom of the reciprocating sleeve 207, a thread-passing hole 209 opened on the outer wall of the pin 208, a third support 15 fixedly connected to the top of the working platform 1, a limit post 16 fixedly connected to the outer surface of the third support 15, and the outer surface of the reciprocating sleeve 207 sleeved on the outer wall of the limit post 16.
[0027] In this embodiment, the motor 201 drives the transmission disc 203 to rotate through the first transmission column 202. This indirect transmission method can effectively reduce the direct load on the motor and extend its service life. The transmission disc 203 is rotatably connected to the first transmission shaft 205, and together with the transmission arm 204 and the second transmission shaft 206, the circular motion is converted into the linear motion of the reciprocating sleeve 207. The structure is ingenious and stable. The reciprocating sleeve 207 is fitted on the outer wall of the limiting column 16. The limiting column 16 plays a precise guiding role, ensuring the accuracy of the up and down movement trajectory of the ejector pin 208, so that the ejector pin 208 can accurately penetrate the carton. The setting of the thread hole 209 facilitates the threading of the sewing thread, which greatly improves the working efficiency of sewing the carton and the accuracy of the needle position.
[0028] Please see Figure 1 and Figure 2 And please combine Figure 4 and Figure 5 One end of the first drive shaft 205 is provided with a thread-taking mechanism 3; the thread-taking mechanism 3 includes a drive slider 301, a V-shaped slide bar 302 is slidably inserted inside the drive slider 301, an mounting block 303 is fixedly connected to the outer surface of the V-shaped slide bar 302, a thread-passing block 304 is bolted to the outer surface of the mounting block 303, a rotating shaft 305 is rotatably connected inside the V-shaped slide bar 302, and a first fixing plate 306 is fixedly connected to one end of the rotating shaft 305.
[0029] In this embodiment, the first drive shaft 205 drives the drive slider 301 to move. The sliding connection design between the drive slider 301 and the V-shaped slide bar 302 makes the movement of the thread-feeding block 304 more flexible and varied. The rotating shaft 305 and the first fixed plate 306 internally connected to the V-shaped slide bar 302 provide stable support and rotational foundation for the entire thread-taking mechanism. This structure can accurately take up the thread according to the movement rhythm of the needle-feeding mechanism, ensuring that the thread maintains appropriate tension and position during the sewing process, avoiding problems such as skipped stitches and broken threads, thereby improving the quality and stability of the sewing box.
[0030] Please see Figure 1 and Figure 2 And please combine Figure 6 and Figure 7 A hooking mechanism 4 is fixedly sleeved on the outer wall of the first transmission column 202. The hooking mechanism 4 includes a first pulley 401, a transmission belt 402 is sleeved on the outer wall of the first pulley 401, a second pulley 403 is connected to the inner wall of the transmission belt 402, a second transmission column 404 is fixedly inserted inside the second pulley 403, a rotating column 405 is fixedly connected to one end of the second transmission column 404, and a first bevel gear 406 is fixedly connected to one end of the second transmission column 404. The outer wall of the first bevel gear 406 meshes with a... The second bevel gear 407 has a second fixed plate 408 rotatably connected to its outer surface via a shaft. One end of the mounting column 409 is fixedly connected to a hook line device 410. The bottom of the working platform 1 is fixedly connected to three support columns 12. The bottom of the three support columns 12 is fixedly connected to a support platform 13. The top of the support platform 13 is fixedly connected to a second bracket 14. The top of the second fixed plate 408 is fixedly connected to the bottom of the working platform 1. The top of the working platform 1 is fixedly connected to the bottom of the third bracket 15.
[0031] In this embodiment, the first transmission column 202 drives the second pulley 403 to rotate through the first pulley 401 and the transmission belt 402, realizing effective power transmission and speed adjustment. The hooking speed can be flexibly adjusted according to different sewing needs. The meshing transmission of the first bevel gear 406 and the second bevel gear 407 cleverly changes the direction of power transmission, enabling the hooking device 410 to perform hooking operations at appropriate positions and angles. The connection between the second fixed plate 408 and the working platform 1 ensures the overall stability of the hooking mechanism. The hooking device 410 connected to the mounting column 409 can reliably hook the sewing thread and work in coordination with the needle insertion mechanism and the thread take-up mechanism to complete complex sewing hooking tasks, improving the working performance and adaptability of the sewing machine.
[0032] In this embodiment, the applicant briefly describes the working principle of this utility model: When the hook-and-loop structure of the center-seam carton machine of this utility model is in use, the motor 201 starts, and its output end drives the first transmission column 202 to rotate. Since the transmission disc 203 is fixedly sleeved on the outer wall of the first transmission column 202, the transmission disc 203 rotates together with the first transmission column 202. When the transmission disc 203 rotates, the first transmission shaft 205, which is rotatably connected to its outer wall, drives the transmission arm 204 to move. The transmission arm 204, through the second transmission shaft 206 internally rotatably connected, causes the reciprocating sleeve 207 to reciprocate linearly along the limiting post 16, thereby driving the ejector pin 208 to move up and down. When the ejector pin 208 moves downward, it can penetrate the carton. The thread hole 209 is used to thread the sewing thread. At the same time, in the thread take-up mechanism 3 provided at one end of the first transmission shaft 205, when the first transmission shaft 205 rotates, it drives the drive slider 301 to move. The V-shaped slide bar 302 inside the drive slider 301 slides accordingly. The V-shaped slide bar 302 drives the installation The movement of block 303 and threading block 304 allows the threading block 304 to pick up the thread, cooperating with the movement of the thimble 208 to control the thread during the sewing process. Additionally, the outer wall of the first transmission column 202 is fixedly sleeved in the hooking mechanism 4. When the first transmission column 202 rotates, it drives the first pulley 401 to rotate. The first pulley 401 drives the second pulley 403 to rotate via the transmission belt 402. The second pulley 403 drives the second transmission column 404 to rotate. The first bevel gear 406 at one end of the second transmission column 404 meshes with the second bevel gear 407, thereby transmitting power to the second bevel gear 407. This causes the second bevel gear 407 to drive the hooking device 410 on the second fixed plate 408 via a shaft. The hooking device 410 can press the thread, ensuring its flatness and strength, and improving the quality of the sewing. Throughout the entire process, the work platform 1 is supported by three support columns 12 and a support platform 13. All components cooperate to complete the sewing of the cardboard box.
[0033] In summary, the technical solution provided by this utility model makes up for the shortcomings of the prior art, successfully completes the invention task, and faithfully realizes the technical effects described by the applicant in the above technical effect column.
Claims
1. A hook-and-loop structure for a carton sewing machine, characterized in that, Include: The top of the work platform (1) is fixedly connected with a first support (11), and the top of the first support (11) is provided with a lower needle mechanism (2); The lower needle mechanism (2) comprises a motor (201), the output end of the motor (201) is fixedly connected with a first transmission column (202), the outer wall of the first transmission column (202) is fixedly sleeved with a transmission disc (203), the outer wall of the transmission disc (203) is rotatably connected with a first transmission shaft (205), the outer wall of the first transmission shaft (205) is fixedly connected with a transmission arm (204), the inside of the transmission arm (204) is rotatably connected with a second transmission shaft (206), one end of the second transmission shaft (206) is rotatably connected with a reciprocating sleeve (207), the bottom of the reciprocating sleeve (207) is fixedly connected with a thimble (208), and the outer wall of the thimble (208) is provided with a threading hole (209).
2. The thread hooking structure of a carton seaming machine according to claim 1, wherein: One end of the first transmission shaft (205) is provided with a thread lifting mechanism (3); The thread lifting mechanism (3) comprises a driving slide (301), a V-shaped slide (302) is slidably inserted into the inside of the driving slide (301), the outer surface of the V-shaped slide (302) is fixedly connected with a mounting block (303), the outer surface of the mounting block (303) is bolted with a threading block (304), and the inside of the V-shaped slide (302) is rotatably connected with a rotating shaft (305). One end of the rotating shaft (305) is fixedly connected with a first fixed plate (306).
3. The thread hooking structure of a carton seaming machine according to claim 2, wherein: The outer wall of the first transmission column (202) is fixedly sleeved with a thread hooking mechanism (4); The thread hooking mechanism (4) comprises a first belt pulley (401), the outer wall of the first belt pulley (401) is sleeved with a transmission belt (402), the inner wall of the transmission belt (402) is transmissionally connected with a second belt pulley (403), the inside of the second belt pulley (403) is fixedly inserted with a second transmission column (404), one end of the second transmission column (404) is fixedly connected with a rotating column (405), one end of the second transmission column (404) is fixedly connected with a first bevel gear (406), the outer wall of the first bevel gear (406) is engaged with a second bevel gear (407), the outer surface of the second bevel gear (407) is rotatably connected with a second fixed plate (408) through a shaft, and one end of the mounting column (409) is fixedly connected with a thread hooking device (410).
4. The thread hooking structure of a carton seaming machine according to claim 1, wherein: The bottom of the work platform (1) is fixedly connected with three supporting columns (12).
5. The thread hooking structure of a carton seaming machine according to claim 4, wherein: The bottom of the three supporting columns (12) is fixedly connected with a supporting platform (13), and the top of the supporting platform (13) is fixedly connected with a second support (14).
6. The thread hooking structure of a carton seaming machine according to claim 4, wherein: The top of the work platform (1) is fixedly connected with a third support (15), and the outer surface of the third support (15) is fixedly connected with a limiting column (16).
7. The thread hooking structure of a carton seaming machine according to claim 6, wherein: The outer surface of the reciprocating sleeve (207) is sleeved on the outer wall of the limiting column (16).
8. The thread hooking structure of a carton seaming machine according to claim 3, wherein: The top of the second fixed plate (408) is fixedly connected with the bottom of the working platform (1), and the top of the working platform (1) is fixedly connected with the bottom of the third support (15).