Thread collection device and sewing machine

Abstract

This invention discloses a thread end collection device located at the thread-cutting notch formed by a first and second countertop. The thread end collection device includes a thread suction component and a bracket for fixing the suction component. The thread suction component includes a suction body with a notch, a connector at one end of the suction body for connecting to a suction tube, and a fixing part at the other end of the suction body for connecting to the bracket. The suction tube communicates with the notch, and a negative pressure environment can be formed inside the suction tube to straighten the remaining thread ends for cutting and collect the cut thread ends. The bracket is fixed in a preset position. By connecting the suction tube and the connector, the suction tube communicates with the notch. When the suction tube forms a negative pressure environment, the notch straightens the remaining thread ends. Then, the scissors assembly cuts the remaining thread ends at the root, and the cut thread ends are collected through the notch. This avoids the impact of the cut thread ends scattering on the cleanliness and usability of the countertop, and also solves the problem of manual secondary cutting of residual thread ends.

Description

Technical Field

[0001] This invention relates to the field of sewing machine technology, and in particular to a thread collection device and a sewing machine. Background Technology

[0002] During the sewing process, the sewing thread needs to be cut. After the sewing thread is cut, a long thread end will be left on the fabric. In addition, another piece of the cut thread end will be scattered inside the sewing machine. This affects the cleanliness of the sewing machine table and its performance. Furthermore, the remaining thread end on the fabric needs to be trimmed manually, which is labor-intensive.

[0003] Therefore, how to provide a thread collection device and a sewing machine that can at least partially solve the above-mentioned drawbacks is a technical problem that needs to be solved by those skilled in the art. Summary of the Invention

[0004] The purpose of this invention is to provide a thread collection device and a sewing machine that can prevent the cut thread ends from scattering and affecting the cleanliness of the work surface and the performance of the machine, while solving the problem of manually cutting residual thread ends a second time.

[0005] To achieve the above objectives, the present invention provides a thread end collection device located at the thread cutting notch formed by the first and second table surfaces. The thread end collection device includes a suction component and a bracket for fixing the suction component. The suction component includes a suction body with a notch, a connector disposed at one end of the suction body for connecting to a suction tube, and a fixing part disposed at the other end of the suction body for connecting to the bracket. The suction tube communicates with the notch, and a negative pressure environment can be formed inside the suction tube to straighten the remaining thread ends for cutting and collect the cut thread ends.

[0006] Preferably, the top of the suction body is provided with a platform, which is parallel to the first and second surfaces. The platform has a notch, and the top edge of the notch extends upward to form a protrusion protruding from the platform.

[0007] Preferably, a first rib and a second rib are provided on one side of the suction body, a first gap exists between the first rib and the second rib, and the tops of the first rib and the second rib both protrude above the platform, so that the first gap forms a wire groove above the platform and a clearance groove below the platform. The wire groove is used to accommodate the wire that moves from above the notch into the wire groove before cutting.

[0008] Preferably, the first stiffener is located between the second stiffener and the bracket, and the first stiffener includes a retaining edge that extends toward the fixing part and protrudes from the end face of the fixing part;

[0009] The fixing part is provided with a groove for placing the fixing part, and the end face of the fixing part is provided with a first through hole communicating with the groove;

[0010] The bracket includes a connecting part that can fit against the end face of the fixing part. The connecting part has a second through hole, and one side of the connecting part abuts against the retaining edge. The connecting member passes through the first through hole and the second through hole and connects to the fixing member so that the fixing part and the bracket are relatively fixed.

[0011] Preferably, the bracket further includes a connecting part connected to one side of the connecting part and a positioning part connected to the end of the connecting part away from the connecting part. The positioning part is a plate structure and has a third through hole. The extension direction of the third through hole is parallel to the extension direction of the second through hole, which is used to fix the bracket.

[0012] Preferably, both the second and third through holes are oblong holes, with the length direction of the second through hole perpendicular to the platform and the length direction of the third through hole parallel to the platform.

[0013] Preferably, the central axis of the notch is perpendicular to the platform, and the bottom of the notch is connected to the connector, with the extension direction of the connector being set at an angle to the central axis of the notch.

[0014] Preferably, the end of the protrusion near the wire groove has an arc-shaped notch.

[0015] Preferably, the cable suction device and the bracket are both integral structures.

[0016] A sewing machine including a thread collection device as described in any of the above.

[0017] Compared with the above-mentioned background technology, the thread collection device provided by the present invention is located at the thread cutting notch formed by the first table and the second table. The thread collection device includes a suction component and a bracket for fixing the suction component. The suction component includes a suction body with a notch, a connector disposed at one end of the suction body for connecting to the suction tube, and a fixing part disposed at the other end of the suction body for connecting to the bracket. The suction tube communicates with the notch, and a negative pressure environment can be formed inside the suction tube to straighten the remaining thread ends for cutting and collect the cut thread ends.

[0018] Specifically, the bracket is fixed in a preset position so that the wire suction device is located at the wire cutting notch formed by the first and second tabletops. The wire suction tube and connector are connected so that the wire suction tube is connected to the notch. When the wire suction tube creates a negative pressure environment, the remaining wire ends are straightened through the notch. Then, the scissors assembly is used to cut the remaining wire ends at the base, and the cut wire ends are collected through the notch. This avoids the cut wire ends from scattering and affecting the cleanliness and usability of the tabletop, while also solving the problem of manually cutting residual wire ends a second time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0020] Figure 1 An exploded view of the thread collection device provided in an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the wire suction device provided in an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the wire suction device provided in an embodiment of the present invention from another perspective;

[0023] Figure 4 This is a schematic diagram of the clearance groove provided in an embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the wire collection device provided in an embodiment of the present invention assembled at the wire cutting notch;

[0025] Figure 6 An exploded view of the thread collection device provided in an embodiment of the present invention assembled at the thread cutting notch;

[0026] Figure 7 This is a schematic diagram of the wire collection device provided in an embodiment of the present invention for collecting wire ends.

[0027] in:

[0028] 1-Connector, 2-Protrusion, 3-Wire groove, 4-Platform, 5-Side guard, 6-Reinforcing part, 7-Groove, 8-Allowing groove, 9-First stiffener, 10-Second stiffener, 11-Thread suction piece, 12-Thread suction tube, 13-Fixed piece, 14-Bracket, 15-Connector, 21-First tabletop, 22-Second tabletop, 23-Cutter, 24-Scissors assembly, 30-Sewing material, 31-Pattern, 32-Residual thread end, 33-Thread end. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] In the description of this invention, it should be understood that the terms "top," "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the position or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations of this invention.

[0032] The purpose of this invention is to provide a thread end collection device and a sewing machine that can prevent the cut thread ends 33 from scattering and affecting the cleanliness of the work surface and the performance of the machine, while solving the problem of manually cutting residual thread ends 33 a second time.

[0033] Please see Figure 5 and Figure 6 To achieve the above objectives, the present invention provides a thread end collection device located at the thread-cutting notch formed by the first table 21 and the second table 22. The first table 21 and the second table 22 are set at the same height, and one of the first table 21 and the second table 22 is provided with a scissor assembly 24 for cutting off the remaining thread ends 32. The first table 21 and the second table 22 are used to place the sewing material 30, and a pattern 31 is sewn in a preset area of ​​the sewing material 30 by a needle. When the pattern 31 is completed, the remaining thread ends 32 need to be cut so that the needle can re-sew the pattern 31 on the next piece of sewing material 30. The first table 21 and the second table 22 can move relative to the needle to complete the sewing process. The remaining thread ends 32 refer to the uncut thread, and the thread ends 33 refer to the cut thread, so as to distinguish between the two thread states.

[0034] Please see Figure 1 , Figure 2 and Figure 7 The thread collection device includes a thread suction component 11 and a bracket 14 for fixing the thread suction component 11. The thread suction component 11 includes a thread suction body with a notch, a connector 1 disposed at one end of the thread suction body for connecting to the thread suction tube 12, and a fixing part disposed at the other end of the thread suction body for connecting to the bracket 14. The bottom of the notch is connected to the connector 1 so that the thread suction tube 12 is connected to the notch. A negative pressure environment can be formed inside the thread suction tube 12 to straighten the residual thread ends 32 for cutting and to collect the cut thread ends 33.

[0035] It should be noted that regardless of whether the root of the remaining thread end 32 is directly above the notch, the suction force at the notch can attract the end of the remaining thread end 32 away from its root, so that the remaining thread end 32 is straightened (pulled) for subsequent cutting. Preferably, the central axis of the notch is perpendicular to the platform 4 so that the straightened remaining thread end 32 can enter the notch. When the root of the remaining thread end 32 is directly above the notch, it is easier for the remaining thread end 32 to be straightened and extended vertically.

[0036] The bracket 14 is fixed to a preset position so that the wire suction component 11 is located at the wire cutting notch formed by the first tabletop 21 and the second tabletop 22. The wire suction tube 12 is connected to the connector 1 so that the wire suction tube 12 is connected to the notch. When the wire suction tube 12 creates a negative pressure environment, the residual wire end 32 is straightened through the notch. Then, the scissors assembly 24 is used to cut the residual wire end 32 at the root. The cut wire end 33 is collected through the notch. This can avoid the cut wire end 33 from scattering and affecting the cleanliness of the tabletop and the performance of the tabletop. At the same time, it solves the problem of manually cutting the residual wire end 33 twice.

[0037] The first table 21 and the second table 22 can be made of transparent plates to facilitate observation of the cutting effect of the scissors assembly 24 on the remaining thread ends 32. The thread cutting notch formed by the first table 21 and the second table 22 is set to be relatively long. During the sewing process of the pattern 31, the first table 21 and the second table 22 move along the length direction of the thread cutting notch. When the pattern 31 is sewn, the first table 21 and the second table 22 drive the sewing material 30 to move above the thread end collection device, so that the remaining thread ends 32 are correspondingly located above the notch, thereby completing the above-mentioned cutting process.

[0038] In this embodiment, the top of the suction tube body is provided with a platform 4, which is parallel to the first platform 21 and the second platform 22. The platform 4 has a notch, and the cross-section of the notch perpendicular to its extension direction can be circular, elliptical or other shapes (which can be irregular). The top edge of the notch extends upward to form a protrusion 2 protruding from the platform 4. The protrusion 2 can be an annular protrusion, an elliptical protrusion, etc. The suction tube 12, the connector 1, the notch and the protrusion 2 constitute a complete negative pressure channel. By protruding from the platform 4, the vertical distance between the top of the negative pressure channel and the first platform 21 and / or the second platform 22 is reduced, thereby reducing the distance between the top of the negative pressure channel and the root of the leftover thread 32. This can improve the adsorption force of the leftover thread 32 when the top of the negative pressure channel is in a negative pressure environment, thereby improving the trimming effect of the leftover thread 32.

[0039] Please see Figure 4It is understandable that before the scissors assembly 24 cuts the remaining thread end 32, the pattern 31 needs to be cut by the cutter 23. The cutter 23 is set in a fixed position and adjacent to the suction body. The suction body has a first rib 9 and a second rib 10 on the side facing the cutter 23. There is a first gap between the first rib 9 and the second rib 10, and the tops of the first rib 9 and the second rib 10 both protrude above the platform 4, so that the first gap forms a wire groove 3 above the platform 4 and a clearance groove 8 below the platform 4. The wire groove 3 is used to accommodate the thread that moves from above the notch to the wire groove 3 before cutting. The end of the protrusion 2 near the wire groove 3 is also provided with an arc-shaped notch to guide the remaining thread end 32 into the notch. The clearance groove 8 can provide a certain clearance space for the position of the cutter 23. The cutter 23 can extend its length by borrowing the clearance groove 8 to obtain a longer keyhole as much as possible.

[0040] Please see Figure 3 In some embodiments, the first stiffener 9 is located between the second stiffener 10 and the bracket 14. The first stiffener 9 includes a retaining edge 5 extending toward the fixing part and protruding from the end face of the fixing part. The fixing part is provided with a groove 7 for placing the fixing member 13, and the end face of the fixing part is provided with a first through hole communicating with the groove 7. The bracket 14 includes a connecting part that can fit against the end face of the fixing part. The connecting part is provided with a second through hole, and one side of the connecting part abuts against the retaining edge 5. The connecting member 15 passes through the first through hole and the second through hole and connects to the fixing member 13, so that the fixing part and the bracket 14 are relatively fixed.

[0041] The groove 7 is located on the side of the fixing part facing the suction tube 12. The groove 7 restricts the fixing part 13 within the groove 7, allowing the connecting part 15 to pass through the first through hole and the second through hole for connection. This restricts the movement of the fixing part and the bracket 14 along the axial direction of the first through hole or the second through hole. The first rib 9 extends towards the fixing part and protrudes from the end face of the fixing part. The retaining edge 5 abuts against one side of the connecting part 15, restricting the rotation of the fixing part and the bracket 14 around the axis of the first through hole or the second through hole. In addition, when the fixing part 13 cannot rotate relative to the groove 7, it can also restrict the rotation of the fixing part and the bracket 14 around the axis of the first through hole or the second through hole. The fixing part 13 can be a hexagonal nut, and the connecting part 15 can be a bolt, so as to facilitate the installation and disassembly of the fixing part relative to the bracket 14, and also facilitate the replacement of the suction part 11 when it is damaged.

[0042] The bracket 14 also includes a connecting part connected to one side of the connecting part and a positioning part connected to the end of the connecting part away from the connecting part. The positioning part is a plate structure and has a third through hole. The extension direction of the third through hole is parallel to the extension direction of the second through hole, which is used to fix the bracket 14. Similarly, one or more sets of bolts can be inserted through the third through hole to fix the bracket 14, so that the position of the wire suction piece 11 is fixed.

[0043] In some embodiments, both the second and third through holes are oblong holes, with the length direction of the second through hole perpendicular to the platform 4 and the length direction of the third through hole parallel to the platform 4. The height of the wire suction component 11 can be adjusted by the connector 15 passing through the second through hole at different heights, and the position of the wire suction component 11 in the horizontal direction can be adjusted by the bolt passing through the third through hole at different heights, so as to control the distance between the wire suction component 11 and the cutter 23. The lengths of the second and third through holes can be set according to actual needs to change the position adjustment range of the wire suction component 11, so that the residual wire end 32 is directly above the notch. Under negative pressure, the residual wire end 32 is perpendicular to the plane of the platform 4, making it easy for the scissor assembly 24 to cut the root of the residual wire end 32.

[0044] The notch extends vertically, allowing any remaining thread ends 32 to remain as vertical as possible when absorbed, facilitating cutting. The notch has a certain depth to prevent the thread ends 32 from extending into the connector 1 before cutting. Simultaneously, the extension direction of the connector 1 is angled to the central axis of the notch, resulting in an arched overall structure for the suction element 11. The suction tube 12, after docking, provides support for the suction element 11, enhancing its stability after installation. The first stiffening plate 9 also includes a reinforcing part 6 extending to the bottom of the suction body. The reinforcing part 6 connects to the side of the fixing part facing the connector 1, strengthening the structural strength between the suction body and the fixing part. Both the suction element 11 and the bracket 14 are integral structures, formed by injection molding, avoiding complex parts assembly issues and resulting in a compact, space-saving design.

[0045] In summary, this application provides a lint collection device, including a lint suction component 11 and a bracket 14 for fixing the lint suction component 11. The lint suction component 11 includes a lint suction body with a notch, a connector 1 disposed at one end of the lint suction body for connecting to the lint suction tube 12, and a fixing part disposed at the other end of the lint suction body for connecting to the bracket 14. The second and third through holes on the bracket 14 are set as oblong holes. The height of the lint suction component 11 can be adjusted by the connector 15 passing through the second through hole at different heights. The position of the lint suction component 11 in the horizontal direction can be adjusted by the bolts passing through the third through hole at different heights, so that the residual lint 32 is directly above the notch. Under negative pressure, the residual lint 32 is perpendicular to the plane of the platform 4, making it easy for the scissors assembly 24 to cut the residual lint 32 at the root. The cut lint 33 is collected through the notch, which can avoid the cut lint 33 from scattering and affecting the cleanliness of the table and the performance of use. At the same time, it solves the problem of manual secondary cutting of residual lint 33.

[0046] In addition, this application also provides a sewing machine including the above-mentioned thread collection device, which also has the beneficial effects of the above-mentioned thread collection device, which will not be described in detail here.

[0047] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0048] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0049] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make several improvements and modifications to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the protection scope of the present invention.

Claims

1. A thread collection device, located at the thread-cutting notch formed by a first platform (21) and a second platform (22), characterized in that, The thread collection device includes a thread suction component (11) and a bracket (14) for fixing the thread suction component (11). The thread suction component (11) includes a thread suction body with a notch, a connector (1) disposed at one end of the thread suction body for connecting to the thread suction tube (12), and a fixing part disposed at the other end of the thread suction body for connecting to the bracket (14). The thread suction tube (12) is connected to the notch. A negative pressure environment can be formed inside the thread suction tube (12) to straighten the remaining thread ends (32) for cutting, and to collect the cut thread ends (33).

2. The thread collection device according to claim 1, characterized in that, The top of the suction body is provided with a platform (4), which is parallel to the first table surface (21) and the second table surface (22). The platform (4) has the notch, and the top edge of the notch extends upward to form a protrusion (2) protruding from the platform (4).

3. The thread collection device according to claim 2, characterized in that, The suction body has a first rib (9) and a second rib (10) on one side. There is a first gap between the first rib (9) and the second rib (10), and the tops of the first rib (9) and the second rib (10) both protrude above the platform (4) so ​​that the first gap forms a wire groove (3) above the platform (4) and a clearance groove (8) below the platform (4). The wire groove (3) is used to accommodate the wire that moves from above the notch into the wire groove (3) before cutting.

4. The thread collection device according to claim 3, characterized in that, The first stiffener (9) is located between the second stiffener (10) and the bracket (14), and the first stiffener (9) includes a retaining edge (5) extending toward the fixing part and protruding from the end face of the fixing part. The fixing part is provided with a groove (7) for placing the fixing member (13), and the end face of the fixing part is provided with a first through hole communicating with the groove (7); The bracket (14) includes a connecting part that can fit against the end face of the fixing part. The connecting part has a second through hole, and one side of the connecting part abuts against the stop edge (5). The connecting member (15) passes through the first through hole and the second through hole and connects to the fixing member (13) so that the fixing part and the bracket (14) are relatively fixed.

5. The thread collection device according to claim 4, characterized in that, The bracket (14) further includes a connecting part connected to one side of the connecting part and a positioning part connected to one end of the connecting part away from the connecting part. The positioning part is a plate structure and has a third through hole. The extension direction of the third through hole is parallel to the extension direction of the second through hole, which is used to fix the bracket (14).

6. The thread collection device according to claim 5, characterized in that, Both the second through hole and the third through hole are waist-shaped holes, and the length direction of the second through hole is perpendicular to the platform (4), while the length direction of the third through hole is parallel to the platform (4).

7. The thread collection device according to any one of claims 2-5, characterized in that, The central axis of the notch is perpendicular to the platform (4), and the bottom of the notch is connected to the connector (1). The extension direction of the connector (1) is set at an angle to the central axis of the notch.

8. The thread collection device according to any one of claims 3-5, characterized in that, The protrusion (2) has an arc-shaped notch at one end near the wire groove (3).

9. The thread collection device according to any one of claims 3-5, characterized in that, Both the wire suction component (11) and the bracket (14) are integral structures.

10. A sewing machine, characterized in that, Includes the thread collection device as described in any one of claims 1-9.

Images