Rack structure of sewing machine

Abstract

The utility model relates to the technical field of sewing machines, in particular to a rack structure of a sewing machine. The sewing machine rack structure comprises a table plate, a support unit, a limiting unit and a damping unit, the support unit is used for being connected with a sewing machine and further connected with one side face of the table plate in the thickness direction, and the limiting unit penetrates through the support unit and is connected with the table plate and presses the support unit to the side face of the table plate. One end of the damping unit abuts against the support unit, the other end of the damping unit abuts against the limiting unit, a through hole is formed in the support unit, the inner wall of the limiting unit is in clearance fit with the hole wall of the through hole in the radial direction of the limiting unit, and at least part of the damping unit is located in a gap between the limiting unit and the support unit. The damping device has the advantages that vibration of the support unit caused by the sewing machine needs to be offset and damped by the damping unit and then transmitted to the limiting unit, so that overlarge noise caused by direct collision of the support unit and the limiting unit is avoided, and the noise reduction effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of sewing machine technology, and in particular to a sewing machine frame structure. Background Technology

[0002] Existing sewing machines are typically connected to the table via a support unit. Sewing machines usually have four support legs, which are connected to the support unit. The support unit is connected to the table via a limiting unit, thereby fixing the sewing machine in place.

[0003] However, because the sewing machine vibrates during operation, slight high-frequency collisions occur between the support unit and the limiting unit, resulting in noticeable noise. This causes "noise" during sewing, making the overall sound less "deep" and affecting the user experience, as well as the product's texture and performance. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a sewing machine frame structure.

[0005] A sewing machine frame structure includes: a table; a support unit for connecting to the sewing machine, wherein the support unit is also connected to one side of the table in the thickness direction; a limiting unit passing through the support unit and connected to the table, pressing the support unit against the side of the table; and a shock-absorbing unit, one end of which abuts against the support unit and the other end of which abuts against the limiting unit; wherein the support unit has a through hole for the limiting unit to pass through, and along the radial direction of the limiting unit, the inner wall of the limiting unit and the wall of the through hole are in clearance fit, and at least a portion of the shock-absorbing unit is located in the gap between the limiting unit and the support unit.

[0006] With this configuration, since the sewing machine is connected to the support unit, the vibrations generated by the sewing machine during operation are transmitted to the support unit. For ease of assembly, a gap already exists between the support unit and the limiting unit, making it easy for vibrations from the support unit to collide with the limiting unit and generate noise. In this invention, at least a portion of the shock-absorbing unit is located in the gap between the limiting unit and the support unit, thus preventing collisions between them. Vibration propagation between the two is forced through the shock-absorbing unit, thereby reducing noise and improving the overall feel of the sewing machine.

[0007] In one embodiment, the damping unit is configured as a damping component, which includes a limiting part and a noise reduction part. The noise reduction part is connected to one end of the limiting part. One end of the limiting part abuts against the support unit, and the other end abuts against the limiting unit. The noise reduction part extends into the gap, and the outer diameter of the noise reduction part is smaller than the outer diameter of the limiting part.

[0008] In one embodiment, the noise reduction part is configured as a ring structure, and the noise reduction part is interference-fitted with the support unit and the limiting unit.

[0009] In one embodiment, along the axial direction of the limiting unit, the end face of the noise reduction part away from the limiting part is spaced apart from the platform.

[0010] In one embodiment, the damping unit includes a limiting member and a noise reduction member. The noise reduction member is configured as an O-ring and is located on the side of the limiting member close to the platform. The noise reduction member is located in the gap and is interference-fitted with the support unit and the limiting unit.

[0011] In one embodiment, the support unit includes a connecting frame and a tray. The connecting frame is used to connect to a sewing machine and is also connected to the tray. One side of the tray is pressed against the side of the table, and the other side abuts against the shock-absorbing unit.

[0012] In one embodiment, the limiting unit includes a connecting seat, a connecting member, and a sleeve. The connecting seat is embedded in the platform and has a connecting hole. One end of the connecting member extends into the connecting hole and is connected to the connecting seat. The sleeve is fitted around the outer periphery of the connecting member, and the outer periphery of the sleeve abuts against the shock-absorbing unit.

[0013] In one embodiment, the sleeve includes an expanding section and a reducing section, the outer diameter of the expanding section being larger than the outer diameter of the reducing section, one end of the damping unit abutting against the side of the expanding section facing the platform, and the other end of the damping unit abutting against the support unit.

[0014] In one embodiment, the end of the reduced diameter section near the platform extends into the perforation and cooperates with the support unit to form the gap.

[0015] In one embodiment, the table has an upper side and a lower side, the upper side being used to accommodate a sewing machine, and the support unit and the limiting unit being disposed on the lower side.

[0016] Compared to existing technologies, this invention optimizes the structure of the shock-absorbing unit, ensuring that at least a portion of the shock-absorbing unit is located between the support unit and the limiting unit. This allows the vibrations from the support unit caused by the sewing machine to be offset and damped by the shock-absorbing unit before being transmitted to the limiting unit. This avoids excessive noise caused by direct collision between the support unit and the limiting unit, achieving a noise reduction effect, extending the service life of the equipment and improving the user experience, while also optimizing product quality and performance. Attached Figure Description

[0017] Figure 1 A perspective view of the sewing machine frame structure provided by this utility model in use with a sewing machine;

[0018] Figure 2 A bottom view of one embodiment of the sewing machine frame structure provided by this utility model;

[0019] Figure 3 A cross-sectional view of a first embodiment of the sewing machine frame structure provided by this utility model;

[0020] Figure 4 This is a cross-sectional view of a second embodiment of the sewing machine frame structure provided by this utility model.

[0021] The symbols in the diagram represent the following meanings:

[0022] 100. Sewing machine frame structure; 10. Table; 20. Support unit; 21. Gap; 22. Connecting frame; 23. Support plate; 30. Limiting unit; 31. Connecting seat; 311. Connecting hole; 32. Connecting piece; 33. Sleeve; 331. Expanding section; 332. Reducing section; 40. Shock absorption unit; 41. Shock absorption component; 411. Limiting part; 412. Noise reduction part; 42. Limiting component; 43. Noise reduction component; 50. Machine head; 200. Sewing machine. Detailed Implementation

[0023] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0024] It should be noted that when a mechanism is referred to as being "fixed to" or "set on" another mechanism, it can be directly on the other mechanism or there may be an intervening mechanism. When a mechanism is considered to be "connected to" another mechanism, it can be directly connected to the other mechanism or there may be an intervening mechanism. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0026] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0028] Please see Figures 1-4 This utility model provides a sewing machine frame structure 100, in which the shock-absorbing unit 40, which was originally used to fix the limiting support unit 20, extends into the gap 21 between the support unit 20 and the limiting unit 30, so as to reduce the collision caused by vibration and reduce noise.

[0029] The sewing machine frame structure 100 includes a table plate 10, a support unit 20, a limiting unit 30, and a shock-absorbing unit 40. The support unit 20 is used to connect with the sewing machine 200, and the support unit 20 is also connected to one side of the table plate 10 in the thickness direction. The limiting unit 30 passes through the support unit 20 and is connected to the table plate 10, pressing the support unit 20 against the side of the table plate 10. Understandably, the side of the table plate 10 pressed by the limiting unit 30 against the support unit 20 is the same side of the table plate 10 that the support unit 20 originally abutted against. The support unit 20 and the limiting unit 30 are located on the same side of the table plate 10.

[0030] One end of the shock-absorbing unit 40 abuts against the support unit 20, and the other end abuts against the limiting unit 30, thereby further pressing the support unit 20 and making the connection of the support unit 20 more stable. The support unit 20 has a through hole for the limiting unit 30 to pass through. Along the radial direction of the limiting unit 30, the inner wall of the limiting unit 30 and the wall of the through hole are in a clearance fit. At least a portion of the shock-absorbing unit 40 is located in the gap 21 between the limiting unit 30 and the support unit 20. Thus, since the sewing machine 200 is connected to the support unit 20, the vibration generated by the sewing machine 200 during operation will be transmitted to the support unit 20. For ease of assembly, a gap 21 already exists between the support unit 20 and the limiting unit 30. Therefore, the vibration of the support unit 20 can easily collide with the limiting unit 30, generating noise. In this invention, at least a portion of the shock-absorbing unit 40 is located in the gap 21 between the limiting unit 30 and the support unit 20, thus preventing collisions between the support unit 20 and the limiting unit 30. Vibration propagation between the two needs to pass through the shock-absorbing unit 40, thereby reducing noise and optimizing the feel of the sewing machine 200.

[0031] There are multiple implementation schemes for the damping unit 40. Here, we will take two of the embodiments as examples and describe them in detail:

[0032] Example 1

[0033] Please see Figure 3 In Embodiment 1, the damping unit 40 is configured as a damping component 41.

[0034] The shock absorber 41 includes a limiting part 411 and a noise reduction part 412. The noise reduction part 412 is connected to one end of the limiting part 411. One end of the limiting part 411 abuts against the support unit 20 and the other end abuts against the limiting unit 30. Therefore, its elastic force can press the support unit 20 toward the platform 10, thereby improving the installation stability of the support unit 20.

[0035] The noise reduction part 412 extends into the gap 21, and the outer diameter of the noise reduction part 412 is smaller than the outer diameter of the limiting part 411, so that the noise reduction part 412 can fit into the gap and is adapted to the structural dimensions of the limiting unit 30 and the support unit 20.

[0036] Preferably, the noise reduction part 412 is configured as a circular ring structure, and the noise reduction part 412 is interference-fitted with the support unit 20 and the limiting unit 30. Therefore, the installation of the noise reduction part 412 is more stable, the connection strength is high, and it is prevented from falling off, thereby making the installation of the entire shock absorber 41 more stable.

[0037] Furthermore, along the axial direction of the limiting unit 30, the end face of the noise reduction part 412 away from the limiting part 411 is spaced apart from the platform 10. In this way, the shock absorber 41 can have some adjustment margin in the axial direction of the limiting unit 30, which facilitates its assembly and prevents it from causing structural interference with the limiting unit 30 or the support unit 20 due to the aforementioned interference fit, making it difficult to install in place.

[0038] Preferably, in this embodiment, the shock absorber 41 is integrally formed, and the noise reduction part 412 and the limiting part 411 are directly formed by injection molding.

[0039] For example, the shock absorber 41 is made of rubber, which has good elasticity and deformation capacity, and is low in cost.

[0040] Example 2

[0041] Please see Figure 4 In this second embodiment, the vibration damping unit 40 includes a limiting member 42 and a noise reduction member 43. The noise reduction member 43 is configured as an O-ring and is located on the side of the limiting member 42 near the platform 10. The noise reduction member 43 is located in the gap 21 and is interference-fitted with the support unit 20 and the limiting unit 30. In this way, the O-ring can play the role of the aforementioned noise reduction part 412, preventing the vibration on the support unit 20 from being directly transmitted to the limiting unit 30, thus preventing high-frequency collisions and noise.

[0042] The difference from Embodiment 1 is that the noise reduction component 43 and the limiting component 42 in this embodiment are not integrally formed. They can be connected together, i.e., the noise reduction component 43 and the limiting component 42 abut against each other, or they can be spaced apart, i.e. Figure 4 As shown, the noise reduction component 43 is configured as a separate O-ring.

[0043] Furthermore, the setting of the limiting unit 30 and the support unit 20 can be adapted to both Embodiment 1 and Embodiment 2 described above.

[0044] Specifically, the support unit 20 includes a connecting frame 22 and a tray 23. The connecting frame 22 is used to connect to the sewing machine 200, and the connecting frame 22 is also connected to the tray 23. One side of the tray 23 is pressed against the side of the table 10, and the other side abuts against the shock-absorbing unit 40. The tray 23 is tightly abutted against the table 10 by the pressing of the limiting unit 30 and the shock-absorbing unit 40. The connector 32 is used for the connection between the sewing machine 200 and the tray 23.

[0045] Specifically, the limiting unit 30 includes a connecting seat 31, a connecting member 32, and a sleeve 33. The connecting seat 31 is embedded in the platform 10 and has a connecting hole 311. One end of the connecting member 32 extends into the connecting hole 311 and connects to the connecting seat 31. The sleeve 33 is fitted onto the outer periphery of the connecting member 32, and the outer periphery of the sleeve 33 abuts against the damping unit 40. Thus, the connecting seat 31 can be machined separately, and the connecting member 32 is connected to the connecting seat 31. Therefore, when the connecting seat 31 is damaged, it can be disassembled and repaired separately without repairing the entire platform 10, which also facilitates the machining of the connection structure between the connecting seat 31 and the connecting member 32. The sleeve 33, fitted onto the outside of the connecting member 32, plays an important role in limiting the damping unit 40 and facilitating the installation of various components.

[0046] For example, the connector 32 is set as a bolt, and the connecting hole 311 of the connector 31 is provided with an internal thread. Therefore, the connector 32 can be threadedly connected with the connector 31, making assembly and disassembly more convenient.

[0047] The sleeve 33 includes an expanding section 331 and a reducing section 332. The outer diameter of the expanding section 331 is larger than the outer diameter of the reducing section 332. One end of the damping unit 40 abuts against the side of the expanding section 331 facing the platform 10, and the other end of the damping unit 40 abuts against the support unit 20. Thus, the expanding section 331 abuts against the end of the damping unit 40 (i.e., the limiting part 411 in Embodiment 1 and the limiting member 42 in Embodiment 2) away from the platform 10, thereby pressing the damping unit 40 against the support unit 20 and stabilizing the installation of each structure. The reducing section 332 is used for abutting against the inner wall of the damping unit 40, and allows the connector 32 to be connected to the connector 31 by rotation, allowing the connector 32 to rotate relative to the damping unit 40, the connector 31, and the platform 10 without affecting other structures.

[0048] Furthermore, the end of the reduced-diameter section 332 near the platform 10 extends into the perforation and cooperates with the support unit 20 to form a gap 21. In this way, the vibration of the damping unit 40 will not affect the connection stability of the connector 32, making the equipment more durable.

[0049] The table 10 has an upper side and a lower side. The upper side is used to accommodate the sewing machine 200, while the support unit 20 and the limiting unit 30 are both located on the lower side. Since the upper side of the table 10, where the sewing machine 200 is located, is used for garment sewing and other tasks, a flat surface is required to ensure that the work process is not affected. Therefore, the support unit 20 and the limiting unit 30 are both located on the lower side of the table 10 to avoid interfering with the operation of the sewing machine 200.

[0050] Please see Figure 2The sewing machine 200 has four support legs. In this embodiment, two support brackets are provided, with two support legs connected at intervals on each bracket. The two brackets are spaced apart along the length of the sewing machine 200, and preferably located at both ends of the length of the sewing machine 200. Therefore, the four support legs of the sewing machine 200 are connected to the two brackets. The aforementioned bracket unit 20, limiting unit 30, and shock-absorbing unit 40 are all provided in fours to ensure the installation stability of the sewing machine 200.

[0051] The platform 10 has a slot that can accommodate the connecting seat 31. The connecting seat 31 is embedded in the slot, and the upper side of the connecting seat 31 is flush with the upper side of the platform 10, thereby ensuring the flatness of the upper side of the platform 10.

[0052] The upper side of the connecting seat 31 is also connected to the machine head 50, which is used in conjunction with the sewing machine 200.

[0053] Compared to existing technologies, this invention optimizes the structure of the shock-absorbing unit 40, so that at least a portion of the structure of the shock-absorbing unit 40 is located between the support unit 20 and the limiting unit 30. This ensures that the vibration of the support unit 20 caused by the sewing machine 200 is offset and damped by the shock-absorbing unit 40 before being transmitted to the limiting unit 30. This avoids direct collision between the support unit 20 and the limiting unit 30, which would cause excessive noise, thus achieving a noise reduction effect, improving the service life of the equipment and the user experience, and optimizing the product's texture and performance.

[0054] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0055] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A sewing machine frame structure, characterized in that, include: deck(10); A support unit (20) is used to connect to a sewing machine (200), and the support unit (20) is also connected to one side of the table (10) in the thickness direction; The limiting unit (30) passes through the support unit (20) and is connected to the platform (10), and presses the support unit (20) against the side of the platform (10); The shock-absorbing unit (40) abuts at one end with the support unit (20) and at the other end with the limiting unit (30); The support unit (20) has a through hole for the limiting unit (30) to pass through. Along the radial direction of the limiting unit (30), the inner wall of the limiting unit (30) and the hole wall of the through hole are in clearance fit. At least part of the shock-absorbing unit (40) is located in the gap (21) between the limiting unit (30) and the support unit (20).

2. The sewing machine frame structure according to claim 1, characterized in that, The damping unit (40) is configured as a damping component (41). The damping component (41) includes a limiting part (411) and a noise reduction part (412). The noise reduction part (412) is connected to one end of the limiting part (411). One end of the limiting part (411) abuts against the support unit (20), and the other end abuts against the limiting unit (30). The noise reduction part (412) extends into the gap (21), and the outer diameter of the noise reduction part (412) is smaller than the outer diameter of the limiting part (411).

3. The sewing machine frame structure according to claim 2, characterized in that, The noise reduction part (412) is configured as a ring structure, and the noise reduction part (412) is interference-fitted with the support unit (20) and the limiting unit (30).

4. The sewing machine frame structure according to claim 2, characterized in that, Along the axial direction of the limiting unit (30), the end face of the noise reduction part (412) away from the limiting part (411) is spaced apart from the platform (10).

5. The sewing machine frame structure according to claim 1, characterized in that, The shock absorption unit (40) includes a limiting member (42) and a noise reduction member (43). The noise reduction member (43) is configured as an O-ring and is located on the side of the limiting member (42) near the platform (10). The noise reduction member (43) is located in the gap (21) and is interference-fitted with the support unit (20) and the limiting unit (30).

6. The sewing machine frame structure according to claim 1, characterized in that, The support unit (20) includes a connecting frame (22) and a tray (23). The connecting frame (22) is used to connect with the sewing machine (200), and the connecting frame (22) is also connected to the tray (23). One side of the tray (23) is pressed against the side of the table (10), and the other side abuts against the shock absorption unit (40).

7. The sewing machine frame structure according to claim 1, characterized in that, The limiting unit (30) includes a connecting seat (31), a connecting member (32), and a sleeve (33). The connecting seat (31) is embedded in the platform (10) and has a connecting hole (311). One end of the connecting member (32) extends into the connecting hole (311) and is connected to the connecting seat (31). The sleeve (33) is sleeved on the outer periphery of the connecting member (32), and the outer periphery of the sleeve (33) abuts against the shock absorption unit (40).

8. The sewing machine frame structure according to claim 7, characterized in that, The sleeve (33) includes an expanded diameter section (331) and a reduced diameter section (332). The outer diameter of the expanded diameter section (331) is larger than the outer diameter of the reduced diameter section (332). One end of the damping unit (40) abuts against the side of the expanded diameter section (331) facing the platform (10), and the other end of the damping unit (40) abuts against the support unit (20).

9. The sewing machine frame structure according to claim 8, characterized in that, The reduced diameter section (332) extends into the perforation at one end near the platform (10) and cooperates with the support unit (20) to form the gap (21).

10. The sewing machine frame structure according to claim 1, characterized in that, The table (10) has an upper side and a lower side, the upper side being used to accommodate a sewing machine (200), and the support unit (20) and the limiting unit (30) being disposed on the lower side.

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