Wire control cam easy to clean wound wire

Abstract

The invention relates to a wire control cam easy to clean a wound wire, which comprises a first cam sheet, a spacer and a second cam sheet, and the first cam sheet is provided with a first shaft hole; the distance piece is connected to the side edge of the first cam piece and provided with a center hole. The second cam piece is connected with the distance piece and clamps the distance piece between the first cam piece and the second cam piece; wherein the first cam piece is further provided with a first through groove communicated with the first shaft hole, the distance piece is further provided with a communicating groove communicated with the center hole, and the communicating groove and the first through groove are correspondingly arranged. Therefore, the sewing thread wound on the periphery of the distance piece can be cut off and cleared away.

Description

Technical Field

[0001] This application relates to the technical field of a thread control cam for a sewing machine, particularly to a thread control cam that is easy to clean the entangled thread. Background Art

[0002] The existing thread control structure of a sewing machine mainly includes a thread guide and a thread control cam. The thread guide includes a fixed seat and a wire guiding assembly. The fixed seat is fixedly connected to the sewing machine, and the wire guiding assembly is mounted on the fixed seat. The wire guiding assembly includes a substrate and a plurality of wire guiding pieces fixed above it. A long groove is provided on the substrate; the thread control cam is sleeved on the thread control rotating shaft of the sewing machine and is accommodated corresponding to the position of the long groove on the substrate; thus, the thread control structure of the sewing machine is constituted.

[0003] However, the existing thread control structure of a sewing machine still has the following problems in actual use. Since the thread control cam cooperates with the action relationship between the hook needle and the sewing needle to intermittently push and pull the sewing thread, especially during the high-speed sewing process, the sewing thread is inevitably broken due to the tension problem of the sewing thread. At the same time when the sewing thread is broken, due to the continuous rotational movement of the thread control cam, the sewing thread is often wound by the rotating thread control cam. It is often necessary to remove the entire thread control cam from the thread control rotating shaft to clean the wound sewing thread, which not only takes a long time to remove, but also easily causes deformation and damage of each component. There are also some operators who use the method of burning to melt the wound sewing thread, which is likely to cause blackening of some components and may lead to the hidden danger of fire if there is a slight carelessness.

[0004] Therefore, how to overcome the problem of cleaning the entangled thread is the technical problem to be solved by the applicant. Summary of the Invention

[0005] An object of this application is to provide a thread control cam that is easy to clean the entangled thread, which can use a tool to extend into the first through groove and the communication groove to cut and remove the sewing thread wound around the outer periphery of the spacer.

[0006] To achieve the above object, this application provides a thread control cam that is easy to clean the entangled thread, including a first cam piece, a spacer, and a second cam piece. The first cam piece has a first shaft hole; the spacer is connected to the first cam piece, and the spacer has a central hole; the second cam piece is connected to the spacer and clamps it between the first cam piece and the second cam piece; wherein the first cam piece is further provided with a first through groove communicating with the first shaft hole, and the spacer is further provided with a communication groove communicating with the central hole, and the communication groove and the first through groove are correspondingly arranged.

[0007] In an embodiment, the first shaft hole of the first cam piece and the central hole of the spacer are arranged with the same center.

[0008] In an embodiment, the spacer is a C-shaped ring.

[0009] In one embodiment, the second cam plate has a second shaft hole and a second through groove communicating with the second shaft hole, and the second through groove and the communication groove are correspondingly arranged.

[0010] In one embodiment, the second shaft hole of the second cam plate and the central hole of the spacer are arranged with the same center.

[0011] In one embodiment, it further includes a connecting ring, and the connecting ring is connected to the side of the second cam plate away from the spacer.

[0012] In one embodiment, it further includes at least one screw fixing component. The first cam plate is provided with at least one first through hole, the spacer is provided with at least one through hole, the second cam plate is provided with at least one second through hole, and the connecting ring is provided with at least one screw hole. The screw fixing component sequentially passes through the first through hole, the through hole and the second through hole and then is screwed to the screw hole.

[0013] In one embodiment, it further includes a plurality of screw fixing components. The first cam plate is provided with a plurality of first through holes, the spacer is provided with a plurality of through holes, the second cam plate is provided with a plurality of second through holes, and the connecting ring is provided with a plurality of screw holes. Each screw fixing component sequentially passes through each first through hole, each through hole and each second through hole and then is screwed to each screw hole.

[0014] The present application also has the following effects: it can greatly shorten the time for cleaning the winding, and will not cause adverse situations such as deformation and damage of each component. Description of the Drawings

[0015] Figure 1 Combined drawing of the thread control cam for easy cleaning of winding thread of the present application and a sewing machine.

[0016] Figure 2 Combined drawing of the thread control cam for easy cleaning of winding thread of the present application and a thread control rotating shaft.

[0017] Figure 3 Exploded view of the thread control cam for easy cleaning of winding thread of the present application.

[0018] Figure 4 Combined external view of the thread control cam for easy cleaning of winding thread of the present application.

[0019] Figure 5 Combined sectional view of the thread control cam for easy cleaning of winding thread of the present application.

[0020] Figure 6 Combined sectional view of the thread control cam group for easy cleaning of winding thread of the present application in the use state with a sewing machine.

[0021] Figure 7 Exploded view of another embodiment of the present application.

[0022] Description of the Reference Numerals:

[0023] 1. 1A: Thread control cam that is easy to clean the entangled thread;

[0024] 10: First cam piece;

[0025] 11: First shaft hole;

[0026] 12: First perforation;

[0027] 13: First through groove;

[0028] 20: Spacer;

[0029] 21: Central hole;

[0030] 22: Through hole;

[0031] 23: Connecting groove;

[0032] 30, 30A: Second cam piece;

[0033] 31: Second shaft hole;

[0034] 32: Second perforation;

[0035] 33: Second through groove;

[0036] 40: Connecting ring;

[0037] 41: Shaft hole;

[0038] 42: Screw hole;

[0039] 50: Screw fixing component;

[0040] 8: Sewing machine;

[0041] 81: Machine body;

[0042] 811: Opening;

[0043] 82: Thread control mechanism;

[0044] 821: Thread control rotating shaft;

[0045] 9: Sewing thread. Detailed implementation mode

[0046] For the detailed description and technical content of this application, it is described as follows in conjunction with the accompanying drawings. However, the attached drawings are only provided for reference and explanation, and are not used to limit this application.

[0047] Please refer to Figures 1 to 5As shown, the present application provides a thread control cam that is easy to clean thread entanglement, which is installed on a sewing machine 8. The sewing machine 8 has a body 81, an opening 811 is provided in the body 81, and a thread control mechanism 82 is provided inside the body 81. The thread control mechanism 82 mainly includes a thread control shaft 821. The thread control cam 1 that is easy to clean thread entanglement in the present application is connected to the thread control shaft 821 and is driven by it to rotate, and it is roughly arranged corresponding to the position of the opening 811, and is mainly used to control the reeling and unwinding of the suture (not explicitly shown in the figure). The thread control cam 1 that is easy to clean thread entanglement mainly includes a first cam piece 10, a spacer 20 and a second cam piece 30.

[0048] The first cam piece 10 is a clam-shaped plate, and its outer periphery is not in equal diameter with the center point, so that the tension of the suture can be appropriately controlled. A first axial hole 11 is provided at the center of the first cam piece 10, and a plurality of first through holes 12 are provided in the outer peripheral area of ​​the first axial hole 11 of the first cam piece 10. The first cam piece 10 is also provided with a first through slot 13 connected to the first axial hole 11, that is, the first through slot 13 extends from the periphery of the first axial hole 11.

[0049] The spacer 20 is a C-shaped ring, which is connected to the side of the first cam piece 10. The spacer 20 has a center hole 21, and a plurality of through holes 22 are provided in the outer peripheral area of ​​the center hole 21 of the spacer 20. The spacer 20 is also provided with a connecting groove 23 connected to the center hole 21, that is, the connecting groove 23 extends from the periphery of the center hole 21. The center hole 21 and the aforementioned first shaft hole 11 are arranged at the same center, and the connecting groove 23 is arranged corresponding to the aforementioned first through groove 13.

[0050] The shape and structure of the second cam piece 30 of this embodiment are substantially the same as those of the first cam piece 10 . The second cam piece 30 is connected to the spacer 20 and the spacer 20 is clamped between the first cam piece 10 and the second cam piece 30 .

[0051] A second shaft hole 31 is provided at the center of the second cam piece 30, and a plurality of second through holes 32 are provided in the outer peripheral area of ​​the second shaft hole 31 of the second cam piece 30. The second cam piece 30 is also provided with a second through slot 33 connected to the second shaft hole 31, that is, the second through slot 33 extends from the periphery of the second shaft hole 31. The second shaft hole 31 is centrally arranged with the aforementioned first shaft hole 11 and the center hole 21, and the second through slot 33 is arranged corresponding to the aforementioned connecting slot 23 and the first through slot 13.

[0052] In one embodiment, the wire control cam 1 for easy cleaning of wire entanglements of the present application further comprises a connecting ring 40, which is connected to the side of the second cam piece 30 away from the spacer 20. The connecting ring 40 is mainly used to sleeve the wire control cam 1 for easy cleaning of wire entanglements on the aforementioned wire control shaft 821 and fix it.

[0053] In one embodiment, the wire control cam 1 of the present application, which is easy to clean the wound wire, further includes a plurality of screw fixing components 50. The connecting ring 40 has a shaft hole 41, and a plurality of screw holes 42 are provided on the outer periphery of the shaft hole 41 of the connecting ring 40. Each screw fixing component 50 sequentially passes through each first through hole 12 of the first cam piece 10, each through hole 22 of the spacer 20, and each second through hole 32 of the second cam piece 30, and then is screwed to each screw hole 42 of the connecting ring 40.

[0054] In one embodiment, the screw fixing component 50 can also be in a single form, and the aforementioned first through hole 12, through hole 22, second through hole 32, and screw hole 42 are designed according to the number of the screw fixing components 50.

[0055] Please refer to Figure 6 As shown, when the sewing thread 9 is wound around the outer periphery of the spacer 20 and entangled, a tool (not shown in the figure) can be inserted into the first through groove 13, the communication groove 23, and the second through groove 33 from the opening 811 position of the machine body 81, so as to cut and remove the sewing thread wound around the outer periphery of the spacer 20.

[0056] Please refer to Figure 7 As shown, the difference between the wire control cam 1A of the present embodiment, which is easy to clean the wound wire, and the aforementioned wire control cam 1 of the present embodiment, which is easy to clean the wound wire, is that: only a second shaft hole 31 is provided at the center position of the second cam piece 30A, and a plurality of through holes 32 are provided in the outer peripheral area of the second shaft hole 31, wherein the second shaft hole 31 and the aforementioned first shaft hole 11 and center hole 21 are arranged in the same center configuration, so it also has the equivalent effect of the aforementioned embodiment.

[0057] The above description is only the preferred embodiment of the present application, and is not intended to limit the patent scope of the present application. Other equivalent changes using the patent spirit of the present application shall all fall within the patent scope of the present application.

Claims

1. A wire control cam that is easy to clean the wound wire, characterized in that, Comprising: A first cam plate having a first shaft hole; A spacer connecting the first cam plate, the spacer having a central hole; And A second cam plate connecting the spacer and clamping the spacer between the first cam plate and the second cam plate; Wherein the first cam plate is further provided with a first through groove communicating with the first shaft hole, the spacer is further provided with a communicating groove communicating with the central hole, and the communicating groove and the first through groove are correspondingly arranged.

2. The wire control cam that is easy to clean the wound wire according to claim 1, characterized in that, The first shaft hole of the first cam plate and the central hole of the spacer are arranged with the same center.

3. The wire control cam that is easy to clean the wound wire according to claim 1, characterized in that, The spacer is a C-shaped ring.

4. The wire control cam that is easy to clean the wound wire according to claim 1, characterized in that, The second cam plate has a second shaft hole and is provided with a second through groove communicating with the second shaft hole, and the second through groove and the communicating groove are correspondingly arranged.

5. The wire control cam that is easy to clean the wound wire according to claim 4, characterized in that, The second shaft hole of the second cam plate and the central hole of the spacer are arranged with the same center.

6. The wire control cam that is easy to clean the wound wire according to claim 1, characterized in that, Further comprising a connecting ring, the connecting ring being connected to a side of the second cam plate away from the spacer.

7. The wire control cam that is easy to clean the wound wire according to claim 6, characterized in that, Further comprising at least one screw-fixing assembly, the first cam plate is provided with at least one first through hole, the spacer is provided with at least one through hole, the second cam plate is provided with at least one second through hole, the connecting ring is provided with at least one screw hole, and the screw-fixing assembly sequentially passes through the first through hole, the through hole and the second through hole and then is screwed to the screw hole.

8. The wire control cam that is easy to clean the wound wire according to claim 6, characterized in that, Further comprising a plurality of screw-fixing assemblies, the first cam plate is provided with a plurality of first through holes, the spacer is provided with a plurality of through holes, the second cam plate is provided with a plurality of second through holes, the connecting ring is provided with a plurality of screw holes, and each screw-fixing assembly sequentially passes through each first through hole, each through hole and each second through hole and then is screwed to each screw hole.

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