Feeding device of button sewing machine

Abstract

The utility model belongs to the technical field of button sewing machines, and particularly relates to a feeding device of a button sewing machine, which comprises a material clamping rod arranged on a rack of the button sewing machine in a sliding manner, and a material clamping groove is arranged at the front end of the material clamping rod; the rotating part is rotationally connected to the side end of the front part of the material clamping rod; the sliding piece is connected to the side end of the rotating piece in a sliding mode, and a clamping jaw part is arranged at the front end of the sliding piece and located on the front side of the clamping groove; the driving piece is installed on the clamping rod, and the driving end of the driving piece is movably connected with the rear end of the rotating piece and used for driving the rotating piece to rotate; the two ends of the elastic piece are connected to the rotating piece and the sliding piece correspondingly, and the elastic piece is used for enabling the sliding piece to have the trend of moving towards the rear end of the clamping rod; the limiting piece is arranged on a rack of the button sewing machine and is used for limiting the backward movement of the sliding piece; and the clamping jaw part linearly moves on the clamping rod, so that the clamping jaw part is prevented from hitting a subsequent workpiece during clamping, and the workpiece conveying stability is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of button sewing machines, in particular to a feeding device of a button sewing machine. Background Art

[0002] A button sewing machine, also known as a riveting machine, is widely used in garment factories and leather bag processing enterprises. It is mainly used to install various types of metal buttons on products such as knitted garments, down jackets, denim clothing, shoes, hats, and leather.

[0003] Existing button sewing machines can sew buttons of different specifications, but buttons of different specifications need to be clamped by a clamping device. Therefore, the clamping device also needs to be adapted to buttons of multiple specifications.

[0004] For example, a new feeding device of a riveting machine disclosed in Chinese Patent CN202123155679.6 includes a frame, a base, a clamping rod, a clamping assembly, and a clamping driving cylinder. The clamping assembly is driven by the clamping driving cylinder to open or close to release or grab the workpiece.

[0005] However, there are still some deficiencies in this patent. The clamping jaws of the clamping assembly rotate to clamp the workpiece in the clamping groove. During the rotation of the engaging pin to the clamping groove, the end of the engaging pin will hit the workpiece on the feeding channel of the vibrating disk, resulting in the subsequent workpiece falling. Even the end of the engaging pin will press against the upper end surface of the subsequent workpiece, causing the engaging pin to get stuck and affecting the operation of the button sewing machine. Summary of the Invention

[0006] The purpose of the utility model is to provide a feeding device of a button sewing machine. The sliding part is slidably arranged on the rotating part. When the clamping jaw part clamps the workpiece in the clamping groove, the clamping jaw part moves linearly on the clamping rod, improving the problem that the clamping jaw part hits the subsequent workpiece during clamping and affecting feeding.

[0007] The purpose of the utility model is realized as follows:

[0008] A feeding device of a button sewing machine includes:

[0009] A clamping rod, which is slidably arranged on the frame of the button sewing machine, and a clamping groove is arranged at the front end of the clamping rod;

[0010] A rotating part, which is rotatably connected to the front side end of the clamping rod;

[0011] A sliding part, which is slidably connected to the side end of the rotating part, and a clamping jaw part is arranged at the front end of the sliding part, and the clamping jaw part is located in front of the clamping groove;

[0012] A driving member is installed on the clamping rod, and the driving end of the driving member is movably connected to the rear end of the rotating member for driving the rotating member to rotate;

[0013] An elastic member has two ends respectively connected to the rotating member and the sliding member for making the sliding member have a tendency to move towards the rear end of the clamping rod;

[0014] A limiting member is installed on the frame of the button sewing machine for restricting the rearward movement of the sliding member;

[0015] During clamping, the clamping rod moves backward on the frame of the button sewing machine to a set position 1. The sliding member is first restricted from moving backward by the limiting member, so that the clamping jaw portion is away from the clamping groove, thereby enabling the workpiece to enter the clamping groove;

[0016] During feeding, the clamping rod first moves forward on the frame of the button sewing machine. Under the action of the elastic member, the clamping jaw portion and the clamping groove cooperate to clamp the workpiece. After clamping and moving to the set position 2, the driving member drives the rotating member to rotate, so that the clamping jaw portion and the clamping groove release the workpiece.

[0017] Preferably, a chute is formed on the sliding member, a slider is arranged at the side end of the rotating member, an anti - detachment block is arranged at the rear end of the slider, the front end of the slider passes through the chute and is connected to the rotating member, and the anti - detachment block is movably abutted against the edge of the chute opening.

[0018] Preferably, a limiting protrusion is arranged at the rear end of the sliding member, and the limiting protrusion is movably abutted against the limiting member; an adjustment hole is arranged on the limiting member, and a fixing member passes through the adjustment hole and is connected to the button sewing machine;

[0019] When the clamping rod moves backward on the button sewing machine, by adjusting the position of the limiting member on the button sewing machine, the distance between the clamping jaw portion and the clamping groove is adjusted.

[0020] Preferably, a hinged portion is provided at the middle side end of the rotating member, a hinged groove is arranged on the clamping rod, and the hinged portion is hinged in the hinged groove;

[0021] A bent portion is arranged at the rear end of the rotating member, a connecting plate is rotatably connected to the bent portion, and the connecting plate is rotatably connected to the driving end of the driving member;

[0022] An inclined end face is provided at the rear end of the rotating member facing the side of the clamping rod;

[0023] When the driving member drives the rotating member to rotate to the open state on the clamping rod, the inclined end face abuts against the side end of the clamping rod.

[0024] Preferably, a clamping block is movably connected to the front end of the material clamping rod, and the material clamping groove is formed at the front end of the clamping block;

[0025] An adjustment hole one is arranged on the clamping block, and the end of a fastener one passes through the adjustment hole one and is connected to the front end of the material clamping rod.

[0026] Preferably, a limiting groove one is arranged on the clamping block, the adjustment hole one is formed at the bottom of the limiting groove one, a limiting block is arranged at the front end of the material clamping rod, the limiting block is inserted into the limiting groove one, and the limiting block is movably connected to the fastener one extending out of the adjustment hole one.

[0027] Preferably, a material blocking part is arranged at the side end of the limiting block, and an avoidance opening is arranged at the side end of the clamping block;

[0028] When the limiting block is inserted into the limiting groove one, the material blocking part is placed in the avoidance opening.

[0029] Preferably, an adjusting claw is movably connected to the front end of the sliding part, and the claw part is formed by bending the front end of the adjusting claw;

[0030] An adjustment hole two is arranged on the adjusting claw, and the end of a fastener two passes through the adjustment hole two and is connected to the front end of the sliding part.

[0031] Preferably, a limiting groove two is formed on the adjusting claw, the adjustment hole two is formed at the bottom of the limiting groove two, a limiting part is arranged at the front end of the sliding part, the limiting part is inserted into the limiting groove two and is movably connected to the fastener two.

[0032] Preferably, the material clamping groove is a V-shaped groove, and its groove opening faces the claw part.

[0033] The prominent and beneficial technical effects of the present utility model compared with the prior art are as follows:

[0034] In the design of the present utility model, the claw part is far away from the material clamping groove through the limiting part, so that the workpiece enters the material clamping groove, and the claw part is close to the material clamping groove through the elastic part, so as to clamp the workpiece. The claw part moves linearly on the material clamping rod, avoiding hitting the subsequent workpieces, ensuring the stability of the workpiece transportation and the working efficiency of the button sewing machine. Description of the Drawings

[0035] Figure 1 It is a structural schematic diagram of the present utility model.

[0036] Figure 2 It is a structural schematic diagram of the present utility model when the elastic part is not installed.

[0037] Figure 3This is the top view of the present utility model.

[0038] Figure 4 This is the exploded view of the present utility model.

[0039] Figure 5 This is the structural schematic diagram of the clamping block of the present utility model.

[0040] Figure 6 This is the structural schematic diagram of the adjusting claw of the present utility model.

[0041] Reference numerals: 1, material clamping rod; 11, hinge groove; 12, fastener one; 13, limit block; 14, material blocking part; 2, rotating part; 21, slider; 22, anti - detachment block; 23, hinge part; 24, bent part; 25, connecting plate; 26, inclined end face; 3, sliding part; 31, sliding groove; 32, limit projection; 33, fastener two; 34, limit part; 4, driving part; 41, connecting seat one; 42, connecting seat two; 43, hinge seat; 5, elastic part; 6, limiting part; 61, adjustment hole; 7, clamping block; 71, material clamping groove; 72, adjustment hole one; 73, limit groove one; 74, avoidance opening; 8, adjusting claw; 81, claw part; 82, adjustment hole two; 83, limit groove two. Detailed implementation manners

[0042] The following further elaborates on the detailed implementation manners of the present utility model with reference to the drawings.

[0043] As Figure 1 shown, a feeding device of a button - sewing machine includes: a material clamping rod 1, which is slidably arranged on the frame of the button - sewing machine, and a material clamping groove 71 is arranged at the front end of the material clamping rod 1; a rotating part 2, which is rotatably connected to the front - side end of the front part of the material clamping rod 1; a sliding part 3, which is slidably connected to the side end of the rotating part 2, and a claw part 81 is arranged at the front end of the sliding part 3, and the claw part 81 is located in front of the material clamping groove 71; a driving part 4, which is installed on the material clamping rod 1, and the driving end of the driving part 4 is movably connected to the rear end of the rotating part 2 for driving the rotating part 2 to rotate; an elastic part 5, the two ends of which are respectively connected to the rotating part 2 and the sliding part 3 for making the sliding part 3 have a tendency to move towards the rear end of the material clamping rod 1; a limiting part 6, which is installed on the frame of the button - sewing machine for restricting the rearward movement of the sliding part 3;

[0044] During material clamping, the material clamping rod 1 moves backward on the frame of the button - sewing machine to a set position one. The sliding part 3 is first restricted from moving backward by the limiting part 6, so that the claw part 81 moves away from the material clamping groove 71, thereby enabling the workpiece to enter into the material clamping groove 71;

[0045] During feeding, the clamping rod 1 first moves forward on the frame of the button sewing machine. Under the action of the elastic member 5, the clamping jaw portion 81 and the clamping groove 71 cooperate to clamp the workpiece. After clamping and moving the workpiece to the set position two, the driving member 4 drives the rotating member 2 to rotate, so that the clamping jaw portion 81 and the clamping groove 71 release the workpiece.

[0046] A vibrating disk feeding device is arranged at the side end of the frame of the button sewing machine. The outlet end of the conveying channel of the vibrating disk feeding device is located at the side end of the clamping rod 1, so as to transport the workpiece to the side end of the clamping rod 1. The set position one described above is that the clamping groove 71 of the clamping rod 1 moves backward until the outlet end of the conveying channel is located at the side end of the notch of the clamping groove 71, so that the workpiece enters the clamping groove 71.

[0047] A riveting seat is arranged on the frame of the button sewing machine for riveting the upper button and the lower button together. The riveting seat is located in front of the clamping rod 1. The set position two described above is that the clamping jaw portion 81 and the clamping groove 71 clamp the workpiece to the upper end of the riveting seat. When the clamping jaw portion 81 is released, the workpiece will automatically fall onto the riveting seat.

[0048] A frame is arranged on the button sewing machine. A sliding rail is arranged on the frame. A sliding block is slidably arranged on the sliding rail. The clamping rod 1 is installed on the sliding block. And a driving source (a driving cylinder or a linear motor) is arranged on the frame. The driving source drives the clamping rod 1 to move back and forth on the sliding rail. And a base is also slidably arranged on the frame. The base is located at the lower end of the clamping rod 1 and is used to support the lower end of the workpiece. And when the clamping rod 1 moves forward, it will push the base forward to abut against the side wall of the riveting seat of the button sewing machine. When the clamping rod 1 moves backward, the base moves backward and resets under the action of the spring to move away from the riveting seat.

[0049] The workpiece mentioned in this article is the lower button of the button, and the lower button has a bottom end with a larger cross-sectional area and a convex column with a smaller cross-sectional area. The clamping jaw portion 81 and the clamping groove 71 are used to clamp the convex column, and the base is used to support the lower end face of the bottom end of the lower button.

[0050] The driving member 4 is a driving cylinder or a linear motor; the elastic member 5 is a tension spring or a rubber band or a rubber ring.

[0051] Combined Figure 2 and Figure 4 On the sliding member 3, a chute 31 is provided. At the side end of the rotating member 2, a slider 21 is provided. At the rear end of the slider 21, a anti-disengagement block 22 is provided. The front end of the slider 21 passes through the chute 31 and is connected to the rotating member 2. And the anti-disengagement block 22 is movably abutted against the edge of the notch of the chute 31; the front end of the slider 21 is fitted with the installation groove on the rotating member 2 and is connected and fixed by a pin or a bolt. The sliding of the sliding member 3 is realized by the sliding of the slider 21 in the chute 31. At the same time, the anti-disengagement block 22 prevents the sliding member 3 from disengaging from the rotating member 2, ensuring the stability of the connection.

[0052] As shown Figure 3 in the figure, a limiting projection 32 is provided at the rear end of the sliding member 3, and the limiting projection 32 is movably abutted against the limiting projection of the limiting member 6; an adjusting hole 61 (a kidney-shaped hole or a hole with a diameter larger than the diameter of the fixing member) is provided on the limiting member 6, and the fixing member (screw or bolt or pin) passes through the adjusting hole 61 and is connected to the button sewing machine; when the material clamping rod 1 moves backward on the button sewing machine, by adjusting the position of the limiting member 6 on the button sewing machine, the distance between the clamping jaw portion 81 and the material clamping groove 71 can be adjusted, so that workpieces of different sizes can enter the material clamping groove 71.

[0053] As shown Figure 4 in the figure, a hinged portion 23 is provided at the middle side end of the rotating member 2, and a hinged groove 11 is provided on the material clamping rod 1, and the hinged portion 23 is hinged in the hinged groove 11; a bent portion 24 is provided at the rear end of the rotating member 2, and a connecting plate 25 is rotatably connected to the bent portion 24, and the connecting plate 25 is rotatably connected to the driving end of the driving member 4; an inclined end face 26 is provided at the rear end of the rotating member 2 facing the side of the material clamping rod 1; when the driving member 4 drives the rotating member 2 to rotate to the open state on the material clamping rod 1, the inclined end face 26 abuts against the side end of the material clamping rod 1.

[0054] As shown Figure 4 in the figure, a first connecting seat 41 and a second connecting seat 42 are provided at the middle side end of the material clamping rod 1, the second connecting seat 42 is connected to the material clamping rod 1 by bolts, and a clamping space formed between the first connecting seat 41 and the second connecting seat 42 is used to clamp the driving member 4. A hinged seat 43 is hinged to the driving end of the driving member 4, and the hinged seat 43 is hinged to the connecting plate 25.

[0055] In this design, the connection method of the driving member 4 driving the rotating member 2 to rotate can also be: not provided with the connecting plate 25, the rear end of the driving member 4 is connected to the material clamping rod 1 by a hinged manner (the first connecting seat 41 and the second connecting seat 42 are hinged to the material clamping rod 1 or the rear end of the driving member 4 is hinged to the material clamping rod 1 by a hinge shaft), and the driving end of the driving member 4 is hinged to the bent portion 24 at the rear end of the rotating member 2, so as to realize the driving member 4 driving the rotating member 2 to rotate.

[0056] Combined with Figure 4 and Figure 5 in the figure, a clamping block 7 is movably connected to the front end of the material clamping rod 1, and a material clamping groove 71 is formed at the front end of the clamping block 7; an adjusting hole 72 (the adjusting hole 72 is a kidney-shaped hole or the hole diameter is large enough for the first fastener 12 to move therein) is provided on the clamping block 7, and the end of the first fastener 12 passes through the adjusting hole 72 and is connected to the front end of the material clamping rod 1. The first fastener 12 is a screw or a bolt or a screw or a pin; when the size of the workpiece placed in the material clamping groove 71 changes, by adjusting the position of the clamping block 7 at the front end of the material clamping rod 1, the distance between the center of the workpiece and the riveting seat is kept unchanged, ensuring the accurate and stable feeding.

[0057] Combined with Figure 4 and Figure 5 , a first limiting groove 73 is provided on the clamping block 7, a first adjusting hole 72 is opened at the bottom of the first limiting groove 73, a limiting block 13 is provided at the front end of the material clamping rod 1, the limiting block 13 is inserted into the first limiting groove 73, and the limiting block 13 is movably connected to a first fastener 12 extending from the first adjusting hole 72. The limiting block 13 prevents the clamping block 7 from rotating at the front end of the material clamping rod 1, ensuring the accurate and stable forward and backward movement of the clamping block 7.

[0058] Combined with Figure 1 , Figure 4 and Figure 5 , a material blocking portion 14 is provided at the side end of the limiting block 13, and an avoidance opening 74 is provided at the side end of the clamping block 7; when the limiting block 13 is inserted into the first limiting groove 73, the material blocking portion 14 is placed in the avoidance opening 74; when the material clamping rod 1 moves forward for feeding, the end of the conveying channel of the vibrating disk feeding device is located at the side end of the material clamping rod 1. At this time, the subsequent workpieces will abut against the side end of the material clamping rod 1, and when the material clamping rod 1 moves backward to reset, the material blocking portion 14 and the side wall of the clamping block 7 will abut against the workpiece, preventing the workpiece from being stuck between the clamping block 7 and the front end of the material clamping rod 1.

[0059] Combined with Figure 3 and Figure 4 , the front end of the sliding member 3 is movably connected with an adjusting claw 8, and a claw portion 81 is formed by bending the front end of the adjusting claw 8; an second adjusting hole 82 (the second adjusting hole 82 is an elongated hole or the hole diameter is large enough for the second fastener 33 to move therein) is provided on the adjusting claw 8, and the end of the second fastener 33 passes through the second adjusting hole 82 and is connected to the front end of the sliding member 3; the second fastener 33 is a screw or a bolt or a pin; when the size of the workpiece placed in the material clamping groove 71 changes, by adjusting the position of the adjusting claw 8 at the front end of the sliding member 3, the distance between the center of the workpiece and the riveting seat is kept unchanged, ensuring the accurate and stable feeding.

[0060] Combined with Figure 4 and Figure 6 , a second limiting groove 83 is opened on the adjusting claw 8, a second adjusting hole 82 is opened at the bottom of the second limiting groove 83, a limiting portion 34 is provided at the front end of the sliding member 3, and the limiting portion 34 is inserted into the second limiting groove 83 and is movably connected to the second fastener 33; the limiting portion 34 prevents the adjusting claw 8 from rotating at the front end of the sliding member 3, ensuring the stable installation of the adjusting claw 8.

[0061] The material clamping groove 71 is a V-shaped groove for restricting the movement of the workpiece, ensuring that the workpiece can accurately move to the center position of the riveting seat, and the opening of the material clamping groove 71 faces the claw portion 81.

[0062] The specific working process of this solution is as follows: When the clamping rod 1 moves backward on the frame of the button sewing machine, the rear end of the sliding member 3 will abut against the limiting member 6, thereby overcoming the acting force of the elastic member 5, causing the clamping jaw portion 81 to move away from the material clamping groove 71. At this time, the clamping rod 1 continues to move backward, enabling the conveying channel of the vibrating disk feeding device to be located on the front side of the notch of the material clamping groove 71. At this time, the workpiece in the conveying channel can enter the material clamping groove 71; When the clamping rod 1 moves forward, at this time, the clamping rod 1 pushes the workpiece forward, causing the front end of the workpiece to abut against the clamping jaw portion 81. As the clamping rod 1 continues to move forward, at this time, the elastic member 5 causes the clamping jaw portion 81 to clamp the workpiece in the material clamping groove 71. When the clamping rod 1 moves the workpiece to the upper end of the riveting seat, the driving member 4 drives the rotating member 2 to rotate, thereby causing the clamping jaw portion 81 to move away from the material clamping groove 71, realizing loosening the workpiece so that the workpiece falls onto the riveting seat.

[0063] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

[0064] It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in this technology to understand and read, and are not used to limit the limited conditions under which the present utility model can be implemented. Therefore, they do not have a substantial technical meaning. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of description and are not used to limit the scope within which the present utility model can be implemented. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope within which the present utility model can be implemented.

[0065] It should also be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as "connected" to another element, it can be directly connected to the other element or it can also be indirectly connected to the other element through an intermediate element.

[0066] In addition, the descriptions involving "first", "second", etc. in this application are for descriptive purposes only, and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments may be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

Claims

1. A feeding device for a button sewing machine, characterized in that: include: A material clamping rod (1) is slidably arranged on a frame of the button sewing machine, and a material clamping groove (71) is arranged at the front end of the material clamping rod (1); A rotating member (2) rotatably connected to the front side end of the clamping rod (1); A sliding member (3) is slidably connected to the side end of the rotating member (2), and a clamping claw portion (81) is provided at the front end of the sliding member (3), and the clamping claw portion (81) is located at the front side of the material clamping groove (71); A driving member (4) is mounted on the clamping rod (1), and a driving end of the driving member (4) is movably connected to the rear end of the rotating member (2) for driving the rotating member (2) to rotate; An elastic member (5), two ends of which are respectively connected to the rotating member (2) and the sliding member (3), and are used to make the sliding member (3) have a tendency to move toward the rear end of the clamping rod (1); A limiting member (6) is mounted on the frame of the button sewing machine and is used to limit the backward movement of the sliding member (3); When clamping the material, the clamping rod (1) moves backward on the frame of the button sewing machine to a set position 1, and the sliding member (3) is first restricted by the limiting member (6) to move backward, so that the clamping claw (81) is away from the clamping groove (71), so that the workpiece can enter the clamping groove (71); When feeding, the clamping rod (1) first moves forward on the frame of the button sewing machine, and under the action of the elastic member (5), the clamping claw portion (81) and the clamping groove (71) cooperate to clamp the workpiece, and after the clamping moves to the set position two, the driving member (4) drives the rotating member (2) to rotate, so that the clamping claw portion (81) and the clamping groove (71) release the workpiece.

2. The feeding device of a button sewing machine according to claim 1, characterized in that: The sliding member (3) is provided with a slide groove (31), the side end of the rotating member (2) is provided with a slider (21), the rear end of the slider (21) is provided with an anti-slip block (22), the front end of the slider (21) passes through the slide groove (31) and is connected to the rotating member (2), and the anti-slip block (22) movably abuts against the notch edge of the slide groove (31).

3. The feeding device of a button sewing machine according to claim 2, characterized in that: A limiting protrusion (32) is provided at the rear end of the sliding member (3), and the limiting protrusion (32) movably abuts against the limiting member (6); an adjustment hole (61) is provided on the limiting member (6), and a fixing member passes through the adjustment hole (61) and is connected to the button sewing machine; When the clamping rod (1) moves backward on the button sewing machine, the distance between the clamping claw portion (81) and the clamping groove (71) is adjusted by adjusting the position of the limiting member (6) on the button sewing machine.

4. The feeding device of a button sewing machine according to claim 3, characterized in that: The middle side end of the rotating member (2) has a hinge portion (23), the clamping rod (1) is provided with a hinge groove (11), and the hinge portion (23) is hinged in the hinge groove (11); The rear end of the rotating member (2) is provided with a bending portion (24), a connecting plate (25) is rotatably connected to the bending portion (24), and the connecting plate (25) is rotatably connected to the driving end of the driving member (4); The rear end of the rotating member (2) is provided with an inclined end surface (26) facing the clamping rod (1); When the driving member (4) drives the rotating member (2) to rotate on the clamping rod (1) to an open state, the inclined end surface (26) abuts against the side end of the clamping rod (1).

5. A feeding device for a button sewing machine according to any one of claims 1 to 4, characterized in that: The front end of the clamping rod (1) is movably connected to a clamping block (7), and the front end of the clamping block (7) is formed with the clamping groove (71); The clamping block (7) is provided with an adjustment hole (72), and the end of a fastener (12) passes through the adjustment hole (72) and is connected to the front end of the clamping rod (1).

6. A feeding device for a button sewing machine according to claim 5, characterized in that: The clamping block (7) is provided with a limiting groove (73), the bottom of which is provided with the adjusting hole (72), the front end of the clamping rod (1) is provided with a limiting block (13), the limiting block (13) is inserted into the limiting groove (73), and the limiting block (13) is movably connected to a fastener (12) extending from the adjusting hole (72).

7. The feeding device of a button sewing machine according to claim 6, characterized in that: The side end of the limit block (13) is provided with a material stopper (14), and the side end of the clamping block (7) is provided with an avoidance opening (74); When the limiting block (13) is inserted into the limiting groove (73), the material blocking portion (14) is placed in the avoidance opening (74).

8. A feeding device for a button sewing machine according to claim 1 or 2 or 3 or 4 or 6 or 7, characterized in that: The front end of the sliding member (3) is movably connected to an adjusting claw (8), and the front end of the adjusting claw (8) is bent to form the clamping claw portion (81); The adjusting claw (8) is provided with an adjusting hole 2 (82), and the end of the fastener 2 (33) passes through the adjusting hole 2 (82) and is connected to the front end of the sliding member (3).

9. The feeding device of a button sewing machine according to claim 8, characterized in that: The adjusting claw (8) is provided with a second limiting groove (83), the bottom of the second limiting groove (83) is provided with the second adjusting hole (82), the front end of the sliding member (3) is provided with a limiting portion (34), the limiting portion (34) is inserted into the second limiting groove (83) and is movably connected to the second fastener (33).

10. A feeding device for a button sewing machine according to claim 1 or 2 or 3 or 4 or 6 or 7 or 9, characterized in that: The material clamping groove (71) is a V-shaped groove, and its groove opening faces the clamping claw portion (81).

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