Industrial chain stitch sewing machine

Abstract

The invention relates to the technical field of sewing machines, in particular to an industrial chain stitch sewing machine which comprises a support, a sliding mechanism, a conveying mechanism and a rolling mechanism, the support is fixedly mounted on a working panel of the sewing machine, the sliding mechanism is fixedly mounted at the bottom of the support, and the conveying mechanism is slidably mounted at the left end of the support; the rolling mechanism is mounted at the right end of the support in a sliding manner; the automatic feeding device solves the problems that an existing manual feeding mode cannot accurately position materials, cannot accurately control the position and the alignment degree of fabric during feeding and cannot enable the materials to keep uniform tension and flatness during processing, accurate positioning and stable transportation of the fabric in the feeding process are achieved, the feeding efficiency is improved, and the production cost is reduced. According to the fabric conveying device, the fabric is tightened in the conveying process, the flatness of the fabric is improved, clamping and fixing of the fabric before processing are achieved, the bending degree of the fabric is reduced, uniform tension is kept, the processing flatness is improved, and the processing quality is improved.

Description

Technical Field

[0001] This invention relates to the field of sewing machine technology, and more specifically, to an industrial chain stitch sewing machine. Background Technology

[0002] Chain stitch sewing machines are a type of industrial sewing machine. They sew fabric by crossing the stitches formed by two upper and lower needles, creating a "chain" of stitches. This sewing method makes the stitches stronger and is suitable for handling heavy fabrics or sewing tasks that require strength and durability. Before sewing begins, the material must be loaded and positioned. Common loading methods for chain stitch sewing machines on the market include manual loading, automatic loading, hem device, and hand-crank loading. The most widely used method is manual loading, which means that the operator passes the fabric through the sewing area of ​​the sewing machine, manually positions it, and controls the sewing direction and speed.

[0003] Manual feeding requires operators to manually feed the fabric into the sewing area of ​​the sewing machine, which takes time for them to position the material, leading to low production efficiency and requiring more time and labor. Furthermore, manual feeding can easily result in uneven fabric position and tension in the sewing area. When the fabric is slightly curved, operators may not be able to accurately control its position and alignment, leading to unstable or uneven stitches. Additionally, the results of manual feeding are affected by the operator's skill and experience. When processing curved fabric, inaccurate or unstable operation by the operator may cause misalignment, bias, shifting, or other sewing problems. More importantly, during manual feeding, users may experience accidental injuries such as cuts, punctures, or pinching due to carelessness or lack of experience.

[0004] The common solution to this problem is to use an automatic feeding device. This device can quickly and accurately feed the fabric into the sewing area of ​​the sewing machine, while also achieving precise fabric positioning and improving the accuracy and stability of sewing, thus reducing human intervention. Although this method can improve the efficiency and accuracy of manual feeding and avoid problems that occur during sewing, the equipment is expensive, difficult to maintain, and requires regular maintenance and upkeep. More importantly, it also greatly limits the types and sizes of fabrics that cannot be adapted to the requirements of the automatic feeding device, necessitating the use of other feeding methods.

[0005] In view of the above, in order to overcome the above technical problems, the present invention designs an industrial chain stitch sewing machine, which solves the above technical problems. Summary of the Invention

[0006] The technical problem to be solved by this invention is to reduce the time and labor consumption of operators in positioning materials, improve the efficiency of feeding, accurately control the position of the fabric and ensure the alignment of the fabric, effectively suppress the curvature of the fabric, ensure the control of the flatness of the pressing material, reduce sewing problems in the processing process, and avoid accidental injuries caused by carelessness during manual feeding.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] This invention provides the following technical solution: an industrial chain stitch sewing machine, comprising a support, a sliding mechanism, a transmission mechanism, and a rolling mechanism. The support is fixedly installed on the sewing machine's work panel. The sliding mechanism is fixedly installed at the bottom of the support. The transmission mechanism is slidably installed on the left end of the support, and can simultaneously position and transmit the material through sliding. The rolling mechanism is slidably installed on the right end of the support, and can clamp the sheet material to maintain its flatness for easy processing when it is transported. It can also transport the clamped sheet material to the processing area for processing. The sliding mechanism can position and clamp the width of the fabric by sliding on the support. The transmission mechanism can suppress fabric curling to prevent fabric piling caused by curling during transportation and correct the fabric orientation. Then, the fabric is stretched and sent to the rolling mechanism through rollers. This prevents uneven flatness of the fabric during clamping and fixing, which could affect the clamping and installation of the rolling mechanism. The rolling mechanism can clamp and install the fabric, thereby avoiding sewing problems.

[0009] The support includes a feeding platform, a sliding platform, a worktable, a semi-trapezoidal groove, and magnetic pole control holes. The feeding platform is fixedly installed on the left end of the support, the sliding platform is fixedly installed at the interval of the support, and the worktable is fixedly installed on the right end of the sliding platform. The worktable has semi-trapezoidal grooves at both ends for accommodating the rolling mechanism. One side of the groove is a right angle and the other side is a slanted side. When the rolling mechanism is in use, it can slide out through the slanted side of the semi-trapezoidal groove to reach the working area for sewing. When the rolling mechanism is not in use, it can slide down through the slanted side of the semi-trapezoidal groove until it touches the right angle side of the semi-trapezoidal groove. Magnetic pole control holes are provided at the four apex corners of the bottom surface of the semi-trapezoidal groove. The magnetic pole control holes are arranged in pairs collinearly, and are symmetrically arranged with the center of the length and width of the bottom surface of the semi-trapezoidal groove as the center of symmetry.

[0010] It should be noted that when the rolling mechanism is not working, it can slide down into the semi-trapezoidal groove to be stored. When it touches the right-angle side of the semi-trapezoidal groove, it can be initially positioned, so that the fabric can be smoothly transferred from the transmission mechanism to the rolling mechanism. When it is necessary to change the magnetic pole to control the clamping of the fabric by the rolling mechanism, the rolling mechanism can be slid into the left or right semi-trapezoidal groove, and positioned to coincide with the magnetic pole control hole. Then, the magnetic pole is changed by changing the current, thereby controlling the exchange of the clamping and slack states of the rolling mechanism.

[0011] The sliding mechanism includes a fixed housing, a T-shaped fixing groove, a fixed shaft, a connecting gear, a rack, a sliding assembly, a fixing plate, and an arc-shaped groove. The fixed housing is fixedly installed on the bottom of the sliding table. The fixed housing has a T-shaped fixing groove inside, and the protruding parts at both ends of the T-shaped fixing groove can support the rack, eliminating the need for a thicker rack to fill the height gap inside the fixed housing, thus saving on the rack's processing cost. Moreover, the protruding parts of the T-shaped fixing groove can provide support for the rack, making the rack's back and forth movement smoother and preventing forces in two directions from being applied to the connecting gear. The fixed shaft is fixedly installed in the center of the fixed housing, and a transition gear is rotatably installed in the middle of the fixed shaft. The transition gear can transmit the gear from one rack to the other rack to form a counter-movement when one rack operates. The rack is fixedly installed at both ends of the T-shaped fixed groove and forms a apex angle distribution. The sliding component is fixedly installed on the side of one end of the rack and slides with the fixed plate to allow the transmission mechanism to slide smoothly. The fixed plate is fixedly installed at the middle of the bottom end of the T-shaped fixed groove and has an arc groove in the center of the fixed plate.

[0012] It is worth noting that when the operator positions the fabric, the moving transmission mechanism can slide on the sliding mechanism, causing the rack to slide within the T-shaped fixing groove. Then, through the engagement of the connecting rack, the force is transmitted to the other rack, which in turn causes the two transmission mechanisms to slide in opposite directions. This allows the operator to bring the other side of the transmission mechanism over when one end of the fabric is attached to one side of the transmission mechanism. At this point, the transmission mechanisms slide in opposite directions through the sliding mechanism until the other side of the transmission mechanism is attached to the fabric and stops. At this point, the width of the fabric has been positioned, and the next step of the operation can be carried out.

[0013] The sliding assembly includes an L-shaped fixed plate, an arc-shaped slider, a long rectangular boss, an annular slider, and a short rectangular boss. The short arm of the L-shaped fixed plate is fixedly installed on the side of the rack, and the long arm is in contact with the fixed plate. The right-angle joint of the L-shaped fixed plate is in close contact with the top and side surfaces of the fixed plate, which can enhance the sliding stability of the transmission mechanism. The bottom end of the long arm of the L-shaped fixed plate is provided with an arc-shaped slider that slides in conjunction with the arc-shaped groove. The arc-shaped slider and the arc-shaped groove are in contact with each other, and the long arm of the L-shaped fixed plate is in contact with the top surface of the fixed plate, thereby suppressing the back-and-forth swaying of the L-shaped fixed plate and providing a more stable sliding state. The long rectangular boss is fixedly installed at the top of the long arm of the L-shaped fixed plate, and an annular slider is fixedly installed at the top of the long rectangular boss. The annular slider is in contact with the fixed groove, which effectively suppresses the left-right swaying generated during sliding. A short rectangular boss is also fixedly installed at the top of the annular slider.

[0014] The sliding table includes a positioning groove, a limiting groove, and a fixing groove. The positioning groove is provided in the middle of the sliding table to allow the transmission mechanism to slide smoothly for material transportation. The limiting groove can be symmetrically provided at the bottom of the positioning groove. The bottom of the sliding table has a fixing groove for fixing and swaying the transmission mechanism. The fixing groove is annular. When the annular slider slides inside, a certain friction force is generated. The rounded ends of the annular shape can reduce the friction force and reduce the force required for the operator to slide.

[0015] It is worth noting that during the sliding process, because the user is sliding the transmission mechanism, the annular slider will generate a certain back-and-forth wobbling force inside the fixed groove. This force will increase the damping during sliding. At this time, the two ends of the annular fixed groove are round, which can increase the direction of contact, thereby eliminating the back-and-forth wobbling force, making the sliding process smoother, and thus reducing the wear on the slider.

[0016] The transmission mechanism includes a fixed slider, a rectangular opening, a semi-circular positioning plate, rotating holes, rollers, and a power component. The fixed slider is slidably installed inside the sliding table, and a rectangular opening is provided inside the fixed slider. The semi-circular positioning plate is fixedly installed at the front end of the rectangular opening and is symmetrically arranged. When the fabric has a certain degree of curvature, the semi-circular positioning plate can provide a reverse force when the fabric touches it. Through the symmetrical arrangement, the forces from both directions can be concentrated in the middle area, thereby enabling the fabric to be corrected and transported into the rectangular opening. Multiple rotating holes are linearly arrayed on the boundary line of the rectangular opening, and multiple rollers are rotatably installed inside the rotating holes. The power component passes through the fixed slider and is fixedly installed on one side of the fixed slider.

[0017] Importantly, once the operator sees the fabric, the conveyor can be moved to the fabric width and the fabric is fed into the semi-circular positioning plate. This can suppress fabric curling, thus preventing fabric piling caused by curling during transportation, and correcting the fabric orientation. Then, the fabric is stretched and sent to the rolling mechanism by the rollers. This causes uneven flatness of the fabric when it is clamped and fixed, which affects the clamping and installation of the rolling mechanism.

[0018] The power assembly includes a rotating shaft, a roller, a conveyor belt, and a micro motor. One end of the rotating shaft passes through the fixed slider and is rotatably mounted with the roller. The other end of the rotating shaft is rotatably mounted with a roller. The surface of the roller is sanded to control the surface roughness between 0.005mm and 0.01mm. When transporting heavy fabrics, the roller may slip during movement, thereby reducing the efficiency of the transmission mechanism. Therefore, sanding the surface of the roller can increase surface friction and prevent the roller from slipping, thus ensuring the efficiency of the transmission mechanism. A conveyor belt is slidably mounted on the roller surface to rotate the rotating shaft and drive the transmission mechanism to smoothly transport the material to the rolling mechanism. The micro motor is fixedly mounted on the rotating shafts of the second and third columns.

[0019] It is worth noting that the second and third rows of micro motors use different power levels. The second row of micro motors uses higher power to give the second row of rollers a higher rotational speed, while the third row of micro motors uses medium power. Through the transmission of the conveyor belt, the first and third rows of rollers have the same rotational speed. When the fabric enters the transmission mechanism, it will be transported forward when it touches the first row of rollers. When it touches the second row of rollers, because the second row of rollers has a higher rotational speed, it will tighten the loose fabric at the moment of contact and then send it to the third row of rollers. The tightened fabric is then smoothly transported into the rolling mechanism at a lower rotational speed.

[0020] The rolling mechanism includes a rectangular bracket, a limiting opening, a magnet, a magnet pusher, a fixed ball hole, a rotating ball, a cylindrical hole, a brush, and a limiting component. The rectangular bracket is slidably installed in a semi-trapezoidal groove and is movably installed coaxially with the magnetic pole control hole. A limiting opening is provided inside the rectangular bracket, and a magnet, which is a permanent magnet, is fixedly installed on one side inside the limiting opening. The surface of the magnet is covered with dense small particles, which are semi-circular protrusions and are evenly distributed on the surface of the magnet. During the fabric clamping process, the rolling mechanism applies pressure to the fabric through the semi-circular protrusions, increasing the downward pressure and preventing the fabric from moving due to dragging during processing. The magnet pusher is fixedly installed on the rectangular bracket and fixedly connected to the magnet. The bottom of the rectangular bracket has a rectangular array of multiple fixed ball holes, and the rotating ball is fixedly installed in the fixed ball holes. The rear end of the rectangular bracket has symmetrical cylindrical holes, and a brush is fixedly installed at the top of the cylindrical holes. The lower end of the brush contacts and engages with the rotating ball. The limiting component is fixedly installed at the lower end of the outer side of the rectangular bracket.

[0021] Secondly, when the fabric is transported to the rolling mechanism, the operator can control the direction of the current to the magnetic pusher block through the switch button, thereby changing the magnetic pole of the magnet and causing the magnetic pusher block to push out and clamp the fabric. When the user disconnects the current, the magnetic pusher block maintains its magnetic pole to keep the fabric in a clamped state, thus clamping and installing the fabric to keep it flat for subsequent processing and avoid sewing problems caused by uneven materials. After the fabric is fixed, the rolling mechanism can be pushed to send the fabric to the processing area for further processing.

[0022] The limiting component includes a support plate, an L-shaped support frame, and trapezoidal limiting blocks. The support plate is fixedly installed at the bottom of the rectangular bracket. The long arm of the L-shaped support frame is fixed to the side of the support plate, leaving a distance between it and the short arm of the support plate. The trapezoidal limiting blocks are fixedly installed on the inner side of the short arm of the support plate. The trapezoidal limiting blocks are arranged symmetrically, with a gap of 5mm-1mm between the upper and lower trapezoidal limiting blocks. When slightly warped fabric is transported, it touches the inclined surface of the trapezoidal limiting block, creating a guiding force that causes the fabric to slide towards the center, thus allowing the fabric to smoothly enter the limiting block. If the gap between the upper and lower trapezoidal limiting blocks is too large, the fabric will warp excessively. Therefore, a smaller gap of 5mm-1mm is used so that the upper and lower trapezoidal limiting blocks exert a certain pressure on the fabric, effectively suppressing the warping of the fabric and allowing the fabric to smoothly enter the rolling mechanism at the other end.

[0023] Importantly, when the fabric is transported to the center of the rolling mechanism, the upper and lower trapezoidal limit blocks in the limit assembly allow the fabric to be transported within the limit assembly, which also suppresses the slight curling of the fabric during transportation, preventing the fabric from curling up and thus preventing it from falling and failing to reach the other end of the rolling mechanism.

[0024] In summary, the advantages of this invention compared to the prior art are as follows:

[0025] 1. An industrial chain stitch sewing machine of the present invention, when the fabric is fed to the feeding platform, through the sliding cooperation of the transmission mechanism and the sliding mechanism, the operator can slide the transmission mechanism to make the transmission mechanism slide in opposite directions in the sliding mechanism, thereby positioning the fabric width for feeding, ensuring the accuracy and stability of feeding, reducing the time of manual positioning, and improving feeding efficiency; furthermore, through the operation of the transmission mechanism, the curved fabric can be tightened, thereby suppressing the curvature of the fabric and allowing the fabric to enter the processing area in a relatively flat state, ensuring the alignment of the fabric and avoiding inaccurate position control.

[0026] 2. An industrial chain stitch sewing machine of the present invention, when the fabric passes through the rolling mechanism, controls the magnetic poles of the rolling mechanism through the magnetic pole control hole to clamp and fix the fabric. At the same time, through the fixed cooperation of the rolling mechanism and the limiting component, the fabric is fixedly installed on the limiting component in a relatively flat state, and the fabric maintains uniform tension. It also suppresses the bending state of the fabric during processing, thereby avoiding various sewing problems. After the fabric is clamped and installed, the operator can push out the rolling mechanism. The operator can control the processed stitch by grasping the edge of the rolling mechanism or the limiting component, avoiding safety problems caused by improper operation or lack of skill of the operator. Attached Figure Description

[0027] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 This is a front view of the overall structure of the present invention;

[0030] Figure 3 This is an overall sectional view of the sliding mechanism of the present invention;

[0031] Figure 4 This is an internal cross-sectional view of the sliding mechanism of the present invention;

[0032] Figure 5 This is a top view of the support of the present invention;

[0033] Figure 6This is a cross-sectional view of the support of the present invention;

[0034] Figure 7 This is a schematic diagram of the transmission mechanism of the present invention;

[0035] Figure 8 This is a schematic diagram of the power component of the present invention;

[0036] Figure 9 This is a left view of the rolling mechanism of the present invention;

[0037] Figure 10 This is a schematic diagram of the rolling mechanism of the present invention;

[0038] Figure 11 This is a cross-sectional view of the rolling mechanism of the present invention.

[0039] In the diagram: 1. Support; 11. Loading table; 12. Sliding table; 121. Positioning groove; 122. Limiting groove; 123. Fixing groove; 13. Worktable; 14. Semi-trapezoidal groove; 15. Magnetic pole control hole; 2. Sliding mechanism; 21. Fixed housing; 22. T-shaped fixing groove; 23. Fixed shaft; 24. Adapter gear; 25. Rack; 26. Sliding assembly; 261. L-shaped fixing plate; 262. Arc slider; 263. Long rectangular boss; 264. Annular slider; 265. Short rectangular boss; 27. Fixing plate; 28. Arc 3. Groove; 31. Transmission mechanism; 32. Fixed slider; 33. Rectangular opening; 34. Semi-circular positioning plate; 35. Rotating hole; 36. Roller; 37. Power component; 38. Rotating shaft; 39. Roller; 40. Transmission belt; 41. Micro motor; 42. Rolling mechanism; 43. Rectangular bracket; 44. Limiting opening; 45. Magnet; 46. Magnet push block; 47. Fixed ball hole; 48. Rotating ball; 49. Cylindrical hole; 40. Brush; 41. Limiting component; 42. Support plate; 43. L-shaped support frame; 44. Trapezoidal limiting block. Detailed Implementation

[0040] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0041] Example 1:

[0042] like Figures 1 to 11As shown, an industrial chain stitch sewing machine includes a support 1, a sliding mechanism 2, a transmission mechanism 3, and a rolling mechanism 4. The support 1 is fixedly installed on the sewing machine's work panel. The sliding mechanism 2 is fixedly installed at the bottom of the support 1. The transmission mechanism 3 is slidably installed on the left end of the support 1. The transmission mechanism 3 can position the processing material while simultaneously transmitting the material through sliding. The rolling mechanism 4 is slidably installed on the right end of the support 1. When the sheet material is transported, the rolling mechanism 4 can clamp the sheet material to keep it flat for easy processing and can transport the clamped sheet material to the processing area for processing.

[0043] like Figure 1 and Figure 2 As shown, the support 1 includes a loading platform 11, a sliding platform 12, a worktable 13, a semi-trapezoidal groove 14, and a magnetic pole control hole 15. The parameters of the support 1 can be selected as 3000mm × 1000mm × 120mm. The loading platform 11 is fixedly installed on the left end of the support 1, and the parameters of the loading platform 11 can be selected as 900mm × 1000mm × 100mm. The sliding platform 12 is fixedly installed at the interval of the support 1, and the length and width parameters of the sliding platform 12 can be selected as 200mm × 1000mm, with a depth of 50mm. The parameters of the sliding platform 12 can be selected as 2100mm × 1000mm × 120mm. The worktable 13 is fixedly installed on the right end of the sliding platform 12. The worktable 13 has openings at both ends for receiving the rolling mechanism. The semi-trapezoidal groove 14 of the structure 4 has a height of 80mm, which is high enough to accommodate the rolling mechanism 4 and keep the limiting opening 42 of the rolling mechanism 4 aligned with the rectangular opening 32 of the transport mechanism for easy fabric transport. The bottom parameters are 700mm×900mm, with one side being a right angle and the other side being a slanted side. When the rolling mechanism 4 is in use, it can slide out through the slanted side of the semi-trapezoidal groove 14 to reach the working area for sewing. When the rolling mechanism 4 is not in use, it can slide down through the slanted side of the semi-trapezoidal groove 14 until it touches the right angle side of the semi-trapezoidal groove 14. Magnetic pole control holes 15 are provided at the four apex corners of the bottom surface of the semi-trapezoidal groove 14. The magnetic pole control holes 15 are arranged in pairs collinearly, and the magnetic pole control holes 15 are symmetrically arranged with the center of the length and width of the bottom surface of the semi-trapezoidal groove 14 as the center of symmetry.

[0044] like Figure 3 and Figure 4As shown, the sliding mechanism 2 includes a fixed housing 21, a T-shaped fixing groove 22, a fixed shaft 23, a connecting gear 24, a rack 25, a sliding assembly 26, a fixing plate 27, and an arc-shaped groove 28. The fixed housing 21 is fixedly installed on the bottom of the sliding table 12. The fixed housing 21 has a length and width of 200mm × 1000mm × 100mm and a thickness of 100mm. The fixed housing 21 has a T-shaped fixing groove 22 inside. The protruding parts at both ends of the T-shaped fixing groove 22 can hold the rack 25. 5. The T-shaped fixing groove 22 has a 30mm high protrusion at both ends, eliminating the need for a thicker rack 25 to fill the height gap inside the fixing housing 21, thus saving on the processing cost of the rack 25. Furthermore, the protrusions of the T-shaped fixing groove 22 provide support for the rack 25, making its back-and-forth movement smoother and preventing wobbling of the adapter gear 24 in both directions. The fixing shaft 23 is fixedly installed in the center of the fixing housing 21, and an adapter gear is rotatably mounted in the middle of the fixing shaft 23. Wheel 24, the parameters of the adapter gear 24 can be selected as follows: pitch circle diameter of 50mm, module of 1, and number of teeth of 30. Using more teeth can make the moving distance of the transmission mechanism 3 when sliding and positioning the fabric more accurate, and the moving speed will not be too fast. The adapter gear 24 can enable the rack 25 at one end to operate, thereby transmitting the transmission to the rack 25 at the other end to form a counter-movement. The rack 25 is fixedly installed at both ends of the protrusion of the T-shaped fixing groove 22 and forms a apex angle distribution. The parameters of the rack 25 can be selected as follows: module of 1, thickness of The length of the sliding component 26 is 30mm, meshing with the adapter gear 24, and the length parameter is 500mm. The sliding component 26 is fixedly installed on one side of the rack 25 and slides with the fixing plate 27 to allow the transmission mechanism 3 to slide smoothly. The fixing plate 27 is fixedly installed at the middle of the bottom end of the T-shaped fixing groove 22. The parameters of the fixing plate 27 are 160mm×800mm×20mm, and an arc groove 28 is provided in the center of the fixing plate 27. The arc groove 28 is an arc with a diameter of 5mm.

[0045] like Figure 3 and Figure 4As shown, the sliding assembly 26 includes an L-shaped sliding plate 261, an arc-shaped slider 262, a long rectangular boss 263, an annular slider 264, and a short rectangular boss 265. The short arm of the L-shaped sliding plate 261 is fixedly installed on the side of the rack 25, and the long arm is in contact with the fixed plate 27. The right-angle joint of the L-shaped sliding plate 261 is in close contact with the top and side surfaces of the fixed plate 27, which can enhance the sliding stability of the transmission mechanism 3. The bottom end of the long arm of the L-shaped sliding plate 261 is provided with an arc-shaped slider 262 that slides in conjunction with the arc-shaped groove 28. The diameter of the arc-shaped slider 262 is 5mm. The arc-shaped slider 262 fits into the arc-shaped groove 28 and is fitted to the top surface of the fixed plate 27 through the long arm of the L-shaped sliding plate 261, thereby suppressing the back-and-forth swaying of the L-shaped sliding plate 261 and providing a more stable sliding state. The long rectangular boss 263 is fixedly installed at the top of the long arm of the L-shaped sliding plate 261, and an annular slider 264 is fixedly installed at the top of the long rectangular boss 263. The annular slider 264 fits into the fixed groove 123, so that the left and right swaying generated during sliding is effectively suppressed. A short rectangular boss 265 is also fixedly installed at the top of the annular slider 264.

[0046] like Figure 5 and Figure 6 As shown, the sliding table 12 includes a positioning groove 121, a limiting groove 122, and a fixing groove 123. The sliding table 12 has a positioning groove 121 in the middle for the smooth sliding of the transmission mechanism 3 to transport materials. The limiting groove 122 is located at the bottom of the positioning groove 121 and is arranged symmetrically. The bottom of the sliding table 12 has a fixing groove 123 for fixing and swaying the transmission mechanism 3. The fixing groove 123 is annular. When the annular slider 264 slides inside, a certain friction force is generated. The rounded ends of the annular shape can reduce the friction force and reduce the force required for the operator to slide.

[0047] It should be noted that during the sliding process, since the user is sliding the transmission mechanism 3, the annular slider 264 will generate a certain back-and-forth swaying force F1 inside the fixed groove 123. This force will increase the damping feeling during sliding. At this time, the two ends of the annular fixed groove are round, which can increase the direction of contact and provide a reverse inhibitory force F2, thereby eliminating the back-and-forth swaying force. F2-F1=0, making the sliding process smoother and reducing wear on the slider.

[0048] like Figure 7As shown, the transmission mechanism 3 includes a fixed slider 31, a rectangular opening 32, a semi-circular positioning plate 33, a rotating hole 34, a roller 35, and a power assembly 36. The fixed slider 31 is slidably installed inside the sliding table 12. The parameters of the fixed slider 31 are 200mm × 100mm × 100mm. A rectangular opening 32 is provided inside the fixed slider 31. The parameters of the rectangular opening 32 can be selected as a height of 50mm and a width of 60mm. The semi-circular positioning plate 33 is fixedly installed at the front end of the rectangular opening 32 and is symmetrically arranged. When the fabric has a certain degree of curling... When the semi-circular positioning disc 33 comes into contact with the fabric, it provides a reverse force. By symmetrically arranging the upper and lower parts, the forces from both directions can be concentrated in the middle area, thereby allowing the fabric to be corrected and transported into the rectangular opening 32. Multiple rotating holes 34 are linearly arrayed on the boundary line of the rectangular opening 32, and multiple rollers 35 are rotatably installed inside the rotating holes 34. The diameter of the rollers 35 is 23mm, leaving a 4mm transport space in the center of the rectangular opening 32. The power component 36 passes through the fixed slider 31 and is fixedly installed on one side of the fixed slider 31.

[0049] like Figure 7 and Figure 8 As shown, the power assembly 36 includes a rotating shaft 361, a roller 362, a conveyor belt 363, and a micro motor 364. One end of the rotating shaft 361 passes through the fixed slider 31 and is rotatably mounted with the roller 35. The other end of the rotating shaft 361 is rotatably mounted with the roller 362. The surface of the roller 362 is sanded to control the surface roughness between 0.005mm and 0.01mm. When transporting heavy fabrics, the roller 362 may slip during movement, thereby reducing the efficiency of the transmission mechanism 3. Therefore, sanding the surface of the roller 362 can increase the surface friction and prevent the roller 362 from slipping, thus ensuring the efficiency of the transmission mechanism 3. The conveyor belt 363 is slidably mounted on the surface of the roller 362 to rotate the rotating shaft 361 and drive the transmission mechanism 3 to smoothly transport the material to the rolling mechanism 4. The micro motor 364 is fixedly mounted on the rotating shaft 361 in the second and third columns.

[0050] Importantly, the second and third row of micro motors 364 use different power ratings. The second row of micro motors 364 uses higher power to give the second row of rollers 35 a higher rotational speed, while the third row of micro motors 364 uses medium power. Through the conveyor belt, the first and third row of rollers 35 achieve the same rotational speed. When the fabric enters the transmission mechanism 3, contact with the first row of rollers 35 causes forward transport of the fabric, generating a forward pulling force L1. When the fabric touches the second row of rollers 35, it will generate a greater tension L2 on the fabric due to the higher rotation speed of the second row of rollers 35. Since L2 > L1, the loose fabric will be tightened at the moment of contact and then sent to the third row of rollers 35. Since the first row of rollers 35 and the third row of rollers 35 have the same rotation speed, they will generate the same tension L3. Therefore, L2 > L1 = L3. Since L3 < L2, the taut fabric can be smoothly transported to the rolling mechanism 4 at a lower rotation speed.

[0051] like Figure 9 , Figure 10 and Figure 11As shown, the rolling mechanism 4 includes a rectangular bracket 41, a limiting opening 42, a magnet 43, a magnetic pusher 44, a fixed ball hole 45, a rotating ball 46, a cylindrical hole 47, a brush 48, and a limiting component 49. The rectangular bracket 41 is slidably installed in the semi-trapezoidal groove 14. Since the depth of the sliding platform 12 and the height difference of the semi-trapezoidal groove 14 are inconsistent (the height difference is 30mm), in order to keep the transport mechanism and the rolling mechanism 4 at the same horizontal position, the parameters of the rectangular bracket 41 can be selected as 200mm×130mm×100mm, and it is coaxially and movably installed with the magnetic pole control hole 15. A limiting opening 42 is opened in the rectangular bracket 41. The parameters of the limiting opening 42 can be selected as 50mm in height and 60mm in width, so that the rectangular opening 32 and the limiting opening 42 are kept at the same horizontal working position. A magnet 43 is fixedly installed on one side inside the limiting opening 42. The magnet 43 is a permanent magnet, and its surface is covered with dense small particles. These particles are semi-circular protrusions and are evenly distributed on the surface of the magnet 43. During the fabric clamping process, the rolling mechanism 4 applies pressure to the fabric through the semi-circular protrusions, increasing downward pressure and preventing the fabric from moving due to dragging during processing. The magnetic push block 44 is fixedly installed on the rectangular bracket 41 and is fixedly connected to the magnet 43. The bottom of the rectangular bracket 41 has a rectangular array of multiple fixed ball holes 45. The rotating ball 46 is fixedly installed in the fixed ball holes 45. The rear end of the rectangular bracket 41 has symmetrical cylindrical holes 47, and a brush 48 is fixedly installed at the top of the cylindrical hole 47. The lower end of the brush 48 contacts and engages with the rotating ball 46. The limiting component 49 is fixedly installed at the lower end of the outer side of the rectangular bracket 41.

[0052] like Figure 9 and Figure 10As shown, the limiting component 49 includes a support plate 491, an L-shaped support frame 492, and a trapezoidal limiting block 493. The support plate 491 is fixedly installed at the bottom of the rectangular bracket 41. The long arm of the L-shaped support frame 492 is fixed to the side of the support plate 491, and a 60mm gap is left between it and the short arm of the support plate 491, so that it corresponds to the limiting opening 42 to ensure smooth fabric transport. The trapezoidal limiting block 493 is fixedly installed on the inner side of the short arm of the support plate 491. The trapezoidal limiting blocks 493 are arranged symmetrically, with the upper and lower trapezoidal blocks... The gap between the positioning blocks 493 is 5mm-1mm. When the slightly curled fabric is transported, it touches the inclined surface of the trapezoidal limiting block 493, which creates a guiding force for the fabric to slide towards the center, thus allowing the fabric to smoothly enter the limiting block. If the gap between the upper and lower trapezoidal limiting blocks 493 is too large, the fabric will curl up too much. Therefore, a smaller gap distance of 5mm-1mm is used so that the upper and lower trapezoidal limiting blocks 493 can exert a certain pressure on the fabric, thereby effectively suppressing the curling of the fabric and allowing the fabric to smoothly enter the rolling mechanism 4 at the other end.

[0053] The working process of this invention is as follows:

[0054] After the fabric is fed to the loading table 11, the operator slides the transmission mechanism 3, which drives the sliding mechanism 2 to slide in the opposite direction, so that the transmission mechanism 3 slides in the opposite direction. At this time, the operator clamps the fabric into the transmission mechanism 3, and the transmission mechanism 3 transports the fabric to the rolling mechanism 4. The current of the magnetic pole control hole 15 is controlled by the switch, so that the magnet 43 of the rolling mechanism 4 extends to clamp the fabric. Then, the rolling mechanism 4 is slid out from the semi-trapezoidal groove 14 to the worktable for processing. After processing, the rolling mechanism 4 is slid to the right end of the support 1 at the semi-trapezoidal groove 14 and engages with the right end magnetic pole control hole 15. The current is controlled by the switch again to return the magnet 43 in the rolling mechanism 4 to its original position. At this time, the fabric is removed. Finally, the rolling mechanism 4 is slid to the left end of the semi-trapezoidal groove 14 and the above operation is repeated.

[0055] Although the beneficial effects of the present invention have been shown in detail and embodiments have been provided in this specification, those skilled in the art can make various changes, modifications, substitutions and alterations to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An industrial chain stitch sewing machine, characterized in that: The sewing machine includes a support (1), a sliding mechanism (2), a transmission mechanism (3), and a rolling mechanism (4). The support (1) is fixedly installed on the sewing machine's work panel. The sliding mechanism (2) is fixedly installed at the bottom of the support (1). The transmission mechanism (3) is slidably installed on the left end of the support (1). The transmission mechanism (3) can position the processing material while simultaneously transmitting the material through sliding. The rolling mechanism (4) is slidably installed on the right end of the support (1). When the sheet material is transported, the rolling mechanism (4) can clamp the sheet material to keep it flat for easy processing. The clamped sheet can be transported to the processing area for processing. The sliding mechanism (2) can position and clamp the width of the fabric by sliding on the support (1). The transmission mechanism (3) can suppress the fabric from sticking up, thereby preventing the fabric from sticking up during transportation and correcting the fabric orientation. Then, the fabric is stretched and sent to the rolling mechanism (4) by the roller (35), so that the fabric is uneven when it is clamped and fixed, thereby affecting the clamping and installation of the rolling machine. The rolling mechanism (4) can clamp and install the fabric, thereby avoiding sewing problems of the fabric.

2. The industrial chain stitch sewing machine according to claim 1, characterized in that: The support (1) includes a loading table (11), a sliding table (12), a worktable (13), a semi-trapezoidal groove (14), and a magnetic pole control hole (15). The loading table (11) is fixedly installed on the left end of the support (1), the sliding table (12) is fixedly installed at the interval of the support (1), and the worktable (13) is fixedly installed on the right end of the sliding table (12). The worktable (13) has semi-trapezoidal grooves (14) for receiving the rolling mechanism (4) at both ends. One side of the groove is a right angle and the other side is a slant. Magnetic pole control holes (15) are provided at the four apex corners of the bottom surface of the semi-trapezoidal groove (14). The magnetic pole control holes (15) are arranged in pairs along the line, and the magnetic pole control holes (15) are arranged symmetrically with the center of the length and width of the bottom surface of the semi-trapezoidal groove (14) as the center of symmetry.

3. An industrial chain stitch sewing machine according to claim 1, characterized in that: The sliding mechanism (2) includes a fixed housing (21), a T-shaped fixing groove (22), a fixed shaft (23), a transition gear (24), a rack (25), a sliding assembly (26), a fixed plate (27), and an arc groove (28). The fixed housing (21) is fixedly installed at the bottom of the sliding table (12). The fixed housing (21) has a T-shaped fixing groove (22) inside. The fixed shaft (23) is fixedly installed in the center of the fixed housing (21), and the transition gear (24) is rotatably installed in the middle of the fixed shaft (23). The rack (25) is fixedly installed at both ends of the protrusion of the T-shaped fixing groove (22) and forms a verticeal distribution. The sliding assembly (26) is fixedly installed on one side of the rack (25). The fixed plate (27) is fixedly installed at the middle of the bottom end of the T-shaped fixing groove (22), and an arc groove (28) is opened in the center of the fixed plate (27).

4. An industrial chain stitch sewing machine according to claim 3, characterized in that: The sliding assembly (26) includes an L-shaped sliding plate (261), an arc slider (262), a long rectangular boss (263), an annular slider (264), and a short rectangular boss (265). The short arm of the L-shaped sliding plate (261) is fixedly installed on the side of the rack (25), and the long arm is in contact with the fixed plate (27). The bottom end of the long arm of the L-shaped sliding plate (261) is provided with an arc slider (262) that slides in cooperation with the arc groove (28). The long rectangular boss (263) is fixedly installed at the top end of the long arm of the L-shaped sliding plate (261), and an annular slider (264) is fixedly installed at the top end of the long rectangular boss (263). A short rectangular boss (265) is also fixedly installed at the top end of the annular slider (264).

5. An industrial chain stitch sewing machine according to claim 4, characterized in that: The sliding table (12) includes a positioning groove (121), a limiting groove (122), and a fixing groove (123). The sliding table (12) has a positioning groove (121) in the middle for the smooth sliding of the transmission mechanism (3) to transport materials. The limiting groove (122) is symmetrically opened at the bottom of the positioning groove (121). The bottom of the sliding table (12) has a fixing groove (123) for fixing and swaying the transmission mechanism (3), and the fixing groove (123) is annular.

6. An industrial chain stitch sewing machine according to claim 1, characterized in that: The transmission mechanism (3) includes a fixed slider (31), a rectangular opening (32), a semi-circular positioning disk (33), a rotating hole (34), rollers (35), and a power component (36). The fixed slider (31) is slidably installed in the sliding table (12). The fixed slider (31) has a rectangular opening (32). The semi-circular positioning disk (33) is fixedly installed at the front end of the rectangular opening (32) and is arranged symmetrically. Multiple rotating holes (34) are linearly arrayed on the boundary line of the rectangular opening (32), and multiple rollers (35) are rotatably installed inside the rotating holes (34). The power component (36) passes through the fixed slider (31) and is fixedly installed on one side of the fixed slider (31).

7. An industrial chain stitch sewing machine according to claim 6, characterized in that: The power assembly (36) includes a rotating shaft (361), a roller (362), a conveyor belt (363), and a micro motor (364). One end of the rotating shaft (361) passes through the fixed slider (31) and is rotatably mounted with the roller (35). The other end of the rotating shaft (361) is rotatably mounted with the roller (362). The surface roughness of the roller (362) is controlled between 0.005mm and 0.01mm. A conveyor belt (363) is slidably mounted on the surface of the roller (362) to rotate the rotating shaft (361) and drive the conveyor mechanism (3) to smoothly transport the material to the rolling mechanism (4). The micro motor (364) is fixedly mounted on the rotating shaft (361) in the second column.

8. An industrial chain stitch sewing machine according to claim 1, characterized in that: The rolling mechanism (4) includes a rectangular bracket (41), a limiting opening (42), a magnet (43), a magnetic pusher (44), a fixed ball hole (45), a rotating ball (46), a cylindrical hole (47), a brush (48), and a limiting component (49). The rectangular bracket (41) is slidably installed in a semi-trapezoidal groove (14) and is movably installed coaxially with the magnetic pole control hole (15). A limiting opening (42) is provided in the rectangular bracket (41). A magnet (43) is fixedly installed on one side inside the limiting opening (42). The magnet (43) is a permanent magnet. The surface of the magnet (43) is covered with dense small particles. The dense small particles are semi-trapezoidal. The magnetic pusher (44) is fixedly mounted on the rectangular bracket (41) and fixedly connected to the magnet (43). The rectangular bracket (41) has multiple fixed ball holes (45) in a rectangular array at the bottom. The rotating ball (46) is fixedly mounted in the fixed ball hole (45). The rectangular bracket (41) has symmetrical cylindrical holes (47) inside the rear end. A brush (48) is fixedly mounted at the top of the cylindrical hole (47). The lower end of the brush (48) contacts and cooperates with the rotating ball (46). The limiting component (49) is fixedly mounted at the lower end of the rectangular bracket (41).

9. An industrial chain stitch sewing machine according to claim 8, characterized in that: The limiting component (49) includes a support plate (491), an L-shaped support frame (492), and a trapezoidal limiting block (493). The support plate (491) is fixedly installed at the bottom of the rectangular bracket (41). The long arm of the L-shaped support frame (492) is fixed to the side of the support plate (491) and is separated from the short arm of the support plate (491) by a certain distance. The trapezoidal limiting block (493) is fixedly installed on the inner side of the short arm of the support plate (491). The trapezoidal limiting blocks (493) are arranged symmetrically, and the gap between the upper and lower trapezoidal limiting blocks (493) is 5mm-1mm.

Images