Material rack of sewing machine

Abstract

The utility model discloses a sewing machine material frame which comprises a supporting assembly, a plurality of bearing assemblies are arranged outside the supporting assembly, each bearing assembly comprises a connecting frame, a plurality of bearing pieces are installed on the outer walls of the two sides of the top of each connecting frame through bearings, each bearing piece comprises an installation base, and the top end of each installation base is in threaded connection with a connecting pipe. A rubber bag is mounted outside the connecting pipe through a bolt and communicates with the connecting pipe, and an oil storage box is in threaded connection with the outer wall of one side of the mounting base; when the yarn drum is sleeved outside the connecting pipe, the threaded rod is rotated, the threaded rod drives the piston plate to slide in the oil storage box, the sliding piston plate extrudes hydraulic oil in the oil storage box, the hydraulic oil flows into the rubber bag through the mounting seat and the connecting pipe, and the rubber bag bulges to support the yarn drum, so that the yarn drum is fixed; according to the mode, by changing the amount of hydraulic oil flowing into the rubber bag, the firmness degree of the spool on the bearing piece is increased, and the problem that the spool falls off due to the fact that the spring is small in elasticity or aged is solved.

Description

Technical Field

[0001] This utility model relates to the field of sewing machine material rack technology, and specifically to a sewing machine material rack. Background Technology

[0002] A sewing machine is a garment-making tool, encompassing various types. Taking a flatbed sewing machine as an example, a flatbed sewing machine primarily uses a top thread and a bottom thread to create a stitch on the fabric, allowing one or more layers of fabric to interweave or sew together. The use of a sewing machine requires a material rack for material feeding.

[0003] For example, a sewing machine material rack with application number CN202420991710.4 and authorization announcement date of 20241220 includes a mounting base plate. A support assembly is connected to the top of the mounting base plate, and a top connecting plate is connected to the top of the support assembly. A sliding block is provided at the front end of the top connecting plate. A snap-fit ​​fixing assembly is located on the outside of the support assembly. A fixing rod is provided at the top of the snap-fit ​​fixing assembly, and a tassel sleeve fixing assembly is provided on the inner side of the fixing rod. A screw-adjusting cap is provided at the top of the fixing rod. By adjusting the fixed position of the tassel, the screw-adjusting cap is connected to the threaded connection of the fixing rod, controlling the unfolding angle of the tassel sleeve fixing assembly. This allows for limited adjustment and placement of the tassel, avoiding any impact on the performance. The snap-fit ​​fixing assembly is easy to disassemble, and the vertical movement of the top-mounted adjusting wire assembly allows for adaptation to different processing environments, improving the applicability of the equipment.

[0004] After a sewing machine has been working continuously, the weight of the yarn on the bobbin decreases. As the sewing machine pulls, the centrifugal force on the bobbin increases, making it easy for the bobbin to detach from the sewing machine feed rack. To solve this problem, a bobbin sleeve fixing structure is designed. However, existing bobbin sleeve fixing structures mainly rely on springs to unfold the support and fix the bobbin. But the spring force cannot be maintained for a long time, and the springs used have poor elasticity due to their structure. Since the sewing speed of the sewing machine is relatively fast, the bobbin will still fall off. Therefore, there is an urgent need to design a sewing machine feed rack to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a sewing machine material rack to address the aforementioned shortcomings in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A sewing machine material rack includes a support assembly. Multiple load-bearing components are externally mounted on the support assembly. Each load-bearing component includes a connecting frame. Multiple load-bearing members are mounted on the outer walls of both sides of the top of the connecting frame via bearings. Each load-bearing member includes a mounting base. A connecting pipe is threadedly connected to the top of the mounting base, and a rubber bladder is bolted to the outside of the connecting pipe. The rubber bladder communicates with the connecting pipe. An oil reservoir is threadedly connected to one outer wall of the mounting base, and the oil reservoir stores hydraulic oil. The hydraulic oil flows into the mounting base, the connecting pipe, and the rubber bladder. A piston plate is slidably connected inside the oil reservoir, and the piston plate is in contact with the hydraulic oil. A threaded rod is mounted on the center of one outer wall of the oil reservoir via a bearing, and the threaded rod is threadedly connected to the piston plate.

[0008] Furthermore, the top two outer walls of the connecting frame are provided with mounting grooves, and limiters are slidably inserted into the mounting grooves.

[0009] Furthermore, the limiting component includes a plug rod, one end of which is slidably inserted into the mounting groove, and a lever is bolted to the outer wall of the top side of the plug rod.

[0010] Furthermore, one end of the plug rod is fitted with a spring by a bolt, and the other end of the spring is in contact with one side of the inner wall of the mounting groove.

[0011] Furthermore, the support assembly includes a base plate, a support column welded to the center of the top of the base plate, and multiple insertion slots are provided on the four edges of the support column. One end of the insertion rod is inserted into the insertion slot, and grooves are provided on both outer walls of the top of the base plate.

[0012] Furthermore, a pad is bolted to the top outer wall of the base plate, and the pad is slidably sleeved on the outside of the support column. The bottom two outer walls of the pad are provided with mounting grooves, and the mounting grooves and recesses are interconnected. A wheel is slidably inserted into the mounting grooves and recesses.

[0013] Furthermore, guide cylinders are bolted to the outer walls on both sides of the top of the pad, and sliding rods are slidably inserted inside the guide cylinders. The bottom end of the sliding rod is fixedly connected to the wheel by bolts, and an adjusting screw is installed at the top of the guide cylinder through a bearing, and the adjusting screw is fixedly connected to the sliding rod.

[0014] In the above technical solution, the sewing machine material rack provided by this utility model has the following beneficial effects:

[0015] When the yarn bobbin is fitted onto the connecting pipe using the designed support, the threaded rod can be rotated. The threaded rod will cause the piston plate to slide inside the oil reservoir. The sliding piston plate will compress the hydraulic oil inside the oil reservoir, and the hydraulic oil will flow into the rubber bladder through the mounting seat and connecting pipe. The rubber bladder will inflate and support the yarn bobbin, thus fixing it in place. This fixing method can increase the firmness of the yarn bobbin on the support by changing the amount of hydraulic oil flowing into the rubber bladder, avoiding the problem of the yarn bobbin falling off due to insufficient spring force or aging.

[0016] By using the set limiting parts and insertion slots, when it is necessary to fix a large yarn bobbin, two levers can be moved. The levers will retract the insertion rod into the mounting slot, causing the insertion rod to disengage from the insertion slot. This quickly releases the restriction between the connecting frame and the support column, allowing workers to quickly remove the load-bearing components. After removing multiple load-bearing components, the retraction of the insertion rod can be controlled by operating the above steps. Then, by moving it up and down, the bottom connecting frame can be moved to the appropriate position. Afterward, the pressure on the levers is released, and under the action of the spring, the insertion rod will insert into the corresponding insertion slot, fixing the load-bearing component. This changes the distance between the remaining load-bearing components, thus fulfilling the purpose of fixing the large yarn bobbin.

[0017] With the support components in place, when the device needs to be moved, a wrench can be used to turn the adjusting screw. The adjusting screw will cause the sliding rod to slide inside the guide cylinder, and the sliding rod will push the wheel to move, so that the wheel is exposed and in contact with the ground. The above steps can be repeated to adjust the other wheel, so that the two wheels are exposed in turn, allowing the device to move on the ground, making it easier for workers to move the device and reducing the difficulty of moving it. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of a sewing machine material rack according to the present invention.

[0020] Figure 2 This is a schematic diagram of the support component structure provided in an embodiment of a sewing machine material rack according to the present invention.

[0021] Figure 3 This is a schematic diagram of the load-bearing component structure provided in an embodiment of a sewing machine material rack according to the present invention.

[0022] Figure 4This is a schematic diagram of the limiting component structure provided in an embodiment of a sewing machine material rack according to the present invention.

[0023] Figure 5 This is a schematic diagram of the support structure provided in an embodiment of a sewing machine material rack according to the present invention.

[0024] Figure 6 This is a schematic diagram of the oil storage box structure provided for an embodiment of a sewing machine material rack according to the present invention.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Support assembly; 2. Bearing assembly; 3. Base plate; 4. Support column; 5. Insertion slot; 6. Pad; 7. Mounting slot; 8. Guide cylinder; 9. Adjusting screw; 10. Sliding rod; 11. Wheel; 12. Groove; 13. Connecting frame; 14. Mounting slot; 15. Limiting component; 16. Bearing component; 17. Insertion rod; 18. Toggle block; 19. Spring; 20. Mounting seat; 21. Oil reservoir; 22. Connecting pipe; 23. Rubber bladder; 24. Piston plate; 25. Threaded rod; 26. Hydraulic oil. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0028] like Figure 1-6 As shown in the figure, a sewing machine material rack provided in this embodiment of the present invention includes a support component 1. The support component 1 is provided with multiple bearing components 2. The bearing components 2 include a connecting frame 13. Multiple bearing members 16 are installed on the outer walls of the top two sides of the connecting frame 13 through bearings. The bearing members 16 include a mounting base 20. The top of the mounting base 20 is threadedly connected to a connecting pipe 22. A rubber bladder 23 is installed on the outside of the connecting pipe 22 through bolts. The rubber bladder 23 and the connecting pipe 22 are interconnected. An oil storage box 21 is threadedly connected to one side of the outer wall of the mounting base 20. The oil storage box 21 stores hydraulic oil 26. The hydraulic oil 26 flows into the mounting base 20, the connecting pipe 22 and the rubber bladder 23. A piston plate 24 is slidably connected inside the oil storage box 21. The piston plate 24 is in contact with the hydraulic oil 26. A threaded rod 25 is installed at the center of one side of the outer wall of the oil storage box 21 through a bearing. The threaded rod 25 is threadedly connected to the piston plate 24.

[0029] Specifically, in this embodiment, a support component 1 is included, and multiple load-bearing components 2 are provided on the outside of the support component 1. Each load-bearing component 2 includes a connecting frame 13. Multiple load-bearing members 16 are mounted on the outer walls of both sides of the top of the connecting frame 13 via bearings. Each load-bearing member 16 includes a mounting base 20. A connecting pipe 22 is threadedly connected to the top of the mounting base 20, and a rubber bladder 23 is bolted to the outside of the connecting pipe 22. The rubber bladder 23 has a spherical structure and communicates with the connecting pipe 22. An oil reservoir 21 is threadedly connected to one side of the outer wall of the mounting base 20. The oil reservoir 21 is used to store hydraulic oil 26, and the hydraulic oil 26 is stored inside the oil reservoir 21 and flows into the mounting base 2. 0. Inside the connecting pipe 22 and the rubber bladder 23, a piston plate 24 is slidably connected inside the oil storage box 21, and the piston plate 24 is in contact with the hydraulic oil 26. A threaded rod 25 is installed at the center of the outer wall of one side of the oil storage box 21 through a bearing. After the yarn bobbin is sleeved on the outside of the connecting pipe 22, the threaded rod 25 is rotated. The threaded rod 25 will slide the piston plate 24 inside the oil storage box 21. The sliding piston plate 24 will squeeze the hydraulic oil 26 inside the oil storage box 21. The hydraulic oil 26 will flow into the rubber bladder 23 through the mounting seat 20 and the connecting pipe 22. The rubber bladder 23 will inflate and support the yarn bobbin, thereby fixing the yarn bobbin. The threaded rod 25 and the piston plate 24 are threadedly connected.

[0030] The sewing machine feed rack provided by this utility model allows the threaded rod 25 to be rotated when the yarn bobbin is fitted over the connecting pipe 22. The threaded rod 25 will cause the piston plate 24 to slide inside the oil reservoir 21. The sliding piston plate 24 will compress the hydraulic oil 26 inside the oil reservoir 21. The hydraulic oil 26 will flow into the rubber bladder 23 through the mounting base 20 and the connecting pipe 22. The rubber bladder 23 will inflate and support the yarn bobbin, thus fixing it in place. This fixing method can increase the firmness of the yarn bobbin on the bearing member 16 by changing the amount of hydraulic oil 26 flowing into the rubber bladder 23, avoiding the problem of the yarn bobbin falling off due to insufficient elasticity or aging of the spring 19.

[0031] In one embodiment provided by this utility model, such as Figure 3-4As shown, mounting grooves 14 are provided on both sides of the top outer wall of the connecting frame 13, and limiting components 15 are slidably inserted into the mounting grooves 14. The limiting components 15 include a plug rod 17, one end of which is slidably inserted into the mounting groove 14. A lever 18 is bolted to the top outer wall of the plug rod 17, and a spring 19 is bolted to one end of the plug rod 17. When it is necessary to fix a large yarn tube, the two levers 18 can be moved. The levers 18 will pull the plug rod 17 back into the mounting groove 14, so that the plug rod 17 is disengaged from the plug groove 5, and the restriction between the connecting frame 13 and the support column 4 is quickly released, so as to facilitate... Workers quickly remove the excess load-bearing components 2 above the support column 4. After removing multiple load-bearing components 2, the retraction of the plug rod 17 can be controlled by following the above steps. Then, by moving the connecting frame 13 up and down, the bottom connecting frame 13 can be moved to a suitable position. After releasing the pressure on the lever block 18, the plug rod 17 will be inserted into the corresponding plug groove 5 under the action of the spring 19, so that the load-bearing components 2 are fixed, and the distance between the remaining load-bearing components 2 changes to meet the purpose of fixing the large yarn tube. The other end of the spring 19 is in contact with one side of the inner wall of the mounting groove 14.

[0032] In another embodiment provided by this utility model, such as Figure 5-6 As shown, the support assembly 1 includes a base plate 3, a support column 4 welded to the center of the top of the base plate 3, and multiple insertion slots 5 are formed on each of the four edges of the support column 4. One end of the insertion rod 17 is inserted into the insertion slot 5. Grooves 12 are formed on both outer walls of the top of the base plate 3. A pad 6 is bolted to the outer wall of the top of the base plate 3 and is slidably fitted onto the outside of the support column 4. A mounting groove 7 is formed on both outer walls of the bottom of the pad 6 and is interconnected with the groove 12. A wheel 11 is slidably inserted into the mounting groove 7 and the groove 12. The wheel 11 is a locking universal wheel. Guide cylinders 8 are bolted to both outer walls of the top of the pad 6 and sliding rods 10 are slidably inserted into the guide cylinders 8. The bottom end of the sliding rod 10 is fixedly connected to the wheel 11 by bolts. The top end of the guide cylinder 8 is equipped with an adjusting screw 9 through a bearing. When the adjusting screw 9 is turned with a wrench, the adjusting screw 9 will cause the sliding rod 10 to slide inside the guide cylinder 8. The sliding rod 10 will push the wheel 11 to move, so that the wheel 11 is exposed and in contact with the ground. The above steps are repeated to adjust the other wheel 11, so that the two wheels 11 are exposed in turn. Then, the device is pulled to move it to a suitable position. Then, the adjusting screw 9 is turned in the opposite direction with a wrench to put the wheel 11 into the mounting groove 7, so that the base plate 3 is in contact with the ground, and the adjusting screw 9 and the sliding rod 10 are fixedly connected. Example

[0033] A sewing machine material rack includes a support assembly 1. Multiple load-bearing components 2 are provided on the outside of the support assembly 1. Each load-bearing component 2 includes a connecting frame 13. Multiple load-bearing elements 16 are mounted on the outer walls of both sides of the top of the connecting frame 13 via bearings. Each load-bearing element 16 includes a mounting base 20. A connecting pipe 22 is threadedly connected to the top of the mounting base 20, and a rubber bladder 23 is bolted to the outside of the connecting pipe 22. The rubber bladder 23 has a spherical structure and communicates with the connecting pipe 22. An oil reservoir 21 is threadedly connected to one outer wall of the mounting base 20. The oil reservoir 21 stores hydraulic oil 26, and the hydraulic oil 26 flows into the mounting base 20. Inside the connecting pipe 22 and the rubber bladder 23, a piston plate 24 is slidably connected inside the oil storage box 21, and the piston plate 24 is in contact with the hydraulic oil 26. A threaded rod 25 is installed at the center of the outer wall of one side of the oil storage box 21 through a bearing. After the yarn bobbin is sleeved on the outside of the connecting pipe 22, the threaded rod 25 is rotated. The threaded rod 25 will slide the piston plate 24 inside the oil storage box 21. The sliding piston plate 24 will squeeze the hydraulic oil 26 inside the oil storage box 21. The hydraulic oil 26 will flow into the rubber bladder 23 through the mounting seat 20 and the connecting pipe 22. The rubber bladder 23 will inflate and support the yarn bobbin, thereby fixing the yarn bobbin. The threaded rod 25 and the piston plate 24 are threadedly connected. Example

[0034] This embodiment further defines the features of Embodiment 1. The top two outer walls of the connecting frame 13 are provided with mounting grooves 14, and limiting members 15 are slidably inserted into the mounting grooves 14. Each limiting member 15 includes a connecting rod 17, one end of which is slidably inserted into the mounting groove 14. A lever 18 is bolted to one side of the top outer wall of the connecting rod 17, and a spring 19 is bolted to one end of the connecting rod 17. When a large yarn bobbin needs to be fixed, the two levers 18 can be moved, causing the levers 18 to retract the connecting rod 17 into the mounting groove 14, disengaging the connecting rod 17 from the groove 5 and quickly releasing the restriction between the connecting frame 13 and the support column 4. To facilitate workers in quickly removing excess load-bearing components 2 above the support column 4, after removing multiple load-bearing components 2, the retraction of the insertion rod 17 can be controlled by following the above steps. Subsequently, by moving the connecting frame 13 up and down, the bottom connecting frame 13 can be moved to a suitable position. Then, the pressure on the lever block 18 is released, and under the action of the spring 19, the insertion rod 17 will insert into the corresponding insertion slot 5, thus fixing the load-bearing component 2 and changing the distance between the remaining load-bearing components 2 to meet the purpose of fixing large yarn bobbins. The other end of the spring 19 is in contact with one side of the inner wall of the mounting groove 14. The support component 1 includes a base plate 3. A support column 4 is welded at the center of the top, and multiple insertion slots 5 are opened on the four edges of the support column 4. One end of the insertion rod 17 is inserted into the insertion slot 5. Grooves 12 are opened on both sides of the top outer wall of the base plate 3. A pad 6 is installed on the top outer wall of the base plate 3 by bolts, and the pad 6 is slidably fitted onto the outside of the support column 4. A mounting groove 7 is opened on both sides of the bottom outer wall of the pad 6, and the mounting groove 7 is interconnected with the groove 12. A wheel 11 is slidably inserted into the mounting groove 7 and the groove 12. The wheel 11 is a locking universal wheel. A guide cylinder 8 is installed on both sides of the top outer wall of the pad 6 by bolts, and a sliding rod 10 is slidably inserted into the guide cylinder 8. The bottom end of the sliding rod 10 is... The bolt is fixedly connected to the wheel 11. An adjusting screw 9 is installed at the top of the guide cylinder 8 via a bearing. When the adjusting screw 9 is turned with a wrench, the adjusting screw 9 will slide the sliding rod 10 inside the guide cylinder 8. The sliding rod 10 will push the wheel 11 to move, so that the wheel 11 is exposed and in contact with the ground. The above steps are repeated to adjust the other wheel 11, so that the two wheels 11 are exposed in turn. Then, the device is pulled to move it to a suitable position. Then, the adjusting screw 9 is turned in the opposite direction with a wrench to put the wheel 11 into the mounting groove 7, so that the base plate 3 is in contact with the ground, and the adjusting screw 9 and the sliding rod 10 are fixedly connected.

[0035] Working principle: When using this device, first use a wrench to turn the adjusting screw 9. The adjusting screw 9 will cause the sliding rod 10 to slide inside the guide cylinder 8. The sliding rod 10 will push the wheel 11 to move, so that the wheel 11 is exposed and in contact with the ground. Then repeat the above steps to adjust the other wheel 11, so that both wheels 11 are exposed in turn. Then pull the device to move it to the appropriate position. Then use a wrench to turn the adjusting screw 9 in the opposite direction to put the wheel 11 into the mounting groove 7, so that the base plate 3 is in contact with the ground. Then, when the yarn tube can be put on the outside of the connecting pipe 22, turn the threaded rod 25. The threaded rod 25 will cause the piston plate 24 to slide inside the oil storage box 21. The sliding piston plate 24 will squeeze the hydraulic oil 26 inside the oil storage box 21. The hydraulic oil 26 will flow into the rubber bladder 23 through the mounting seat 20 and the connecting pipe 22. The inflating rubber bladder 23 supports the yarn bobbin, thus securing it. When securing large yarn bobbins, the two levers 18 can be moved. Levers 18 retract the insertion rod 17 into the mounting slot 14, disengaging it from the insertion slot 5. This quickly releases the constraint between the connecting frame 13 and the support column 4, allowing workers to quickly remove excess load-bearing components 2 from the support column 4. After removing multiple load-bearing components 2, the retraction of the insertion rod 17 can be controlled by following the above steps. Then, by moving the connecting frame 13 up and down, the bottom connecting frame 13 can be moved to a suitable position. Subsequently, the pressure on the levers 18 is released, and under the action of the spring 19, the insertion rod 17 inserts into the corresponding insertion slot 5, securing the load-bearing component 2 and changing the distance between the remaining load-bearing components 2 to achieve the purpose of securing large yarn bobbins.

[0036] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A sewing machine stand comprising a support assembly (1), characterized in that, The support assembly (1) is externally provided with a plurality of bearing assemblies (2), the bearing assembly (2) comprises a connecting frame (13), a plurality of bearing pieces (16) are installed on the top of the connecting frame (13) through bearings on both sides of the outer wall, the bearing piece (16) comprises a mounting seat (20), the mounting seat (20) is externally provided with a connecting pipe (22) through a threaded connection, and the connecting pipe (22) is externally provided with a rubber capsule (23) through a bolt, the rubber capsule (23) and the connecting pipe (22) are mutually penetrated, the mounting seat (20) is externally provided with an oil storage box (21) through a threaded connection on one side of the outer wall, and the oil storage box (21) is internally provided with hydraulic oil (26), the hydraulic oil (26) flows into the mounting seat (20), the connecting pipe (22) and the rubber capsule (23), the oil storage box (21) is internally provided with a piston plate (24) in a sliding connection, and the piston plate (24) and the hydraulic oil (26) are in mutual contact, the oil storage box (21) is externally provided with a threaded rod (25) through a bearing on one side of the outer wall, and the threaded rod (25) and the piston plate (24) are in threaded connection.

2. The sewing machine stand of claim 1, wherein, The connecting frame (13) is externally provided with an installation groove (14) on both sides of the top, and the installation groove (14) is internally provided with a limiting piece (15) in a sliding insertion.

3. A sewing machine stand according to claim 2, wherein The limiting piece (15) comprises an insertion rod (17), one end of the insertion rod (17) is inserted in the installation groove (14) in a sliding manner, and the insertion rod (17) is externally provided with a pushing block (18) through a bolt on one side of the top.

4. The sewing machine stand of claim 3, wherein, One end of the insertion rod (17) is externally provided with a spring (19) through a bolt, and the other end of the spring (19) is in contact with one side of the inner wall of the installation groove (14).

5. The sewing machine stand of claim 1, wherein, The support assembly (1) comprises a bottom plate (3), the bottom plate (3) is externally provided with a support column (4) through welding on the top center, a plurality of insertion grooves (5) are externally provided on the four edges of the support column (4), the insertion grooves (5) are internally provided with the insertion rod (17), and the bottom plate (3) is externally provided with a recess (12) on both sides of the top.

6. A sewing machine stand according to claim 5, wherein The bottom plate (3) is externally provided with a cushion block (6) through a bolt on the top outer wall, and the cushion block (6) is externally provided with the support column (4) in a sliding sleeve connection, the cushion block (6) is externally provided with a placing groove (7) on both sides of the bottom, and the placing groove (7) and the recess (12) are mutually penetrated, and the placing groove (7) and the recess (12) are internally provided with the wheel (11) in a sliding insertion.

7. A sewing machine stand according to claim 6, wherein The cushion block (6) is externally provided with a guide cylinder (8) through a bolt on both sides of the top, the guide cylinder (8) is internally provided with a sliding rod (10) in a sliding insertion, and the sliding rod (10) is fixedly connected between the bottom end and the wheel (11) through a bolt, the guide cylinder (8) is externally provided with an adjusting screw (9) through a bearing on the top end, and the adjusting screw (9) is fixedly connected with the sliding rod (10).

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