TWI446999B - Blind rivet loading mechanism and method for loading blind rivet - Google Patents

Description

Pull nail insertion mechanism and plucking method

The invention relates to a plucking planting mechanism and a plucking method thereof, in particular to a plucking planting mechanism capable of receiving a rivet and engaging with the action of entering and leaving the stylus head to make the rivet Automatically inserted into the rivet gun head.

The blind rivet is mainly used for the rivet rivet. It is usually made of metal, including the nail head, the nail neck and the shank. The purpose is to join the plate.

The conventional rivet gun design is to manually insert a rivet (or rivet) into the lance of the rivet machine, and to complete the opening of the nail head and the operation of cutting the shank by pressing the plate machine, so as to achieve the purpose of riveting . The disadvantage of manual insertion of the pull stud is that it is labor-intensive, and the riveting operation of the pull stud cannot be automated, and the pull stud may be skewed, resulting in poor quality of the riveting.

In order to improve the shortcomings of the manpower operation, the prior art has the "nail pull automatic binding device" of the Republic of China Announcement No. 422170 patent, which includes a feeding unit for supplying a pull stud, and a feeding mechanism for taking a compressed air push pull stud. The rivet supplied by the pipe of the feeding unit is pushed up and down, and then the rivet is grasped by a transfer mechanism, and then the transfer mechanism is laterally moved to the upper side of the stretching mechanism, and the nail is pulled down to the stretching mechanism. The transfer mechanism also requires lateral movement to exit the stretching mechanism. Finally, the sheet to be joined is placed on the stretching mechanism and the nailing action is performed.

However, the space for the above-mentioned patents needs to be improved. Firstly, the air-pressing unit is required to push the nails by means of compressed air, which not only increases the cost of the machine but also consumes a lot. Fee energy. Such a nail feeding method is also prone to unstable nailing due to factors such as different rivet weights and airflow strength.

The reason is that the present inventors have felt that the above problems can be improved, and that the present invention has been deliberately studied and used in conjunction with the theory, and a present invention which is reasonable in design and effective in improving the above problems has been proposed.

The invention provides a plucking and inserting mechanism which can cooperate with the action of entering and leaving the rivet gun head, so that the rivet is automatically inserted into the rivet gun head, and no manual insertion of the rivet is needed, thereby saving labor time and Cost, and greatly improve the quality of riveting.

In order to solve the above technical problem, according to one aspect of the present invention, a plucking mechanism is provided for guiding a rivet into a rivet head. The plucking mechanism includes a receiving body, a cover body, a pushing component and at least two guiding blocks. The accommodating body has a receiving cavity formed by recessing the top surface thereof, and an outlet passage communicating from the bottom surface thereof to the accommodating cavity. The accommodating cavity is formed by an upper wall surface and a bottom wall surface a slanted wall surface and a stop ring surface connected to the bottom end of the slant wall surface; the cover body is fixed on the top surface of the accommodating body, and the cover body forms a communication body to the accommodating cavity a ejector inlet; the at least two guiding blocks are received in the accommodating cavity, each guiding block has a guiding slot and an inner inclined surface extending obliquely upward from the bottom end, and correspondingly placed on the pushing On the component. When the pushing member moves toward the cover, the at least two guiding blocks are pushed by the pushing member and then moved outward.

The invention further provides a plucking method, which can cooperate with the action of entering and leaving the rivet gun head, so that the rivet is automatically inserted into the rivet gun head without manual insertion of the rivet.

In order to solve the above technical problem, according to one aspect of the present invention, a plucking method is provided, comprising: providing a accommodating body having a receiving cavity formed by recessing a top surface thereof, and a bottom surface thereof An outlet passage connected to the accommodating cavity; a cover body is fixed on the top surface of the accommodating body, and the cover body forms a rivet inlet connected to the accommodating cavity for a rivet to enter Providing at least two guiding blocks, which are received in the accommodating cavity, each guiding block has a guiding slot and an inner inclined surface extending obliquely upward from the bottom end; and passing the ejector pin through the outlet Passing into the accommodating cavity, and moving toward the cover by a pushing member and pushing the at least two guiding blocks to the outside along the inner inclined surface to be clamped between the at least two guiding blocks A rivet enters the rivet gun head through the guide slot; and the stylus tip is removed and the at least two guide blocks are returned to their original positions.

The invention has the following beneficial effects: the invention guides and holds a pull pin in the receiving body by the guiding groove formed by the at least two guiding blocks, and penetrates the pulling nail when the rivet gun head enters the accommodating body The tip and the pushing element push the at least two guiding blocks to cause the rivet to fall into the rivet gun head. When the rivet gun head leaves the accommodating body, at least two guiding blocks are restored to the original position. Thereby, the rivet can be inserted into the rivet gun head without labor, thereby saving labor time and cost, and greatly improving the quality of the rivet.

In order to further understand the technology, method and effect of the present invention in order to achieve the intended purpose, reference should be made to the detailed description and drawings of the present invention. The drawings and the annexed drawings are intended to be illustrative and not to limit the invention.

[First Embodiment] Please refer to Fig. 1 and Fig. 2, which are perspective exploded views of the plucking mechanism of the present invention. The present invention provides a rivet insertion mechanism for guiding a rivet 80 into an ejector head (see the schematic diagram of the component 200 of FIG. 7) upright to improve the conventional artificial insertion and the rivet may be biased. Oblique situation. The plucking mechanism includes a receiving body 10, a pushing member 20, a pair of guiding blocks 30, a cover 40 and a spring 60.

After the ejector mechanism of the present invention is assembled, as shown in FIG. 3, the urging member 20 and the pair of guiding blocks 30 are received in the accommodating body 10, and the cover 40 is fixed to the accommodating body 10. The top surface of the cover 40 is disposed between the cover 40 and the pair of guiding blocks 30 for pushing the pair of guiding blocks 30 back to the original position. The components are described in detail below.

Please refer to FIG. 2 , which is an exploded perspective view of another perspective view of the lacing mechanism of the present invention. The accommodating body 10 has a receiving cavity 12 formed by a top surface thereof and an outlet passage 18 connected to the accommodating cavity 12 by a bottom surface thereof. In this embodiment, the accommodating body 10 is a cylindrical structure, wherein the accommodating cavity 12 is formed by an upper wall surface 122, an inclined wall surface 124 which is tapered from the upper wall surface 122 toward the bottom portion, and a slant wall surface 124 is surrounded by a stop ring surface 126 at the bottom end. More specifically, the upper wall surface 122 of the accommodating body 10 has a cylindrical shape, and the inclined wall surface 124 has a conical shape, and the damper ring surface 126 has a flat annular shape. Wherein the diameter of the outlet passage 18 is substantially equal to the diameter of the stylus tip 200.

As shown in FIG. 1 and FIG. 2, the pushing member 20 is received in the accommodating cavity 12 and placed at the bottom of the accommodating cavity 12, and the pushing member 20 has an outer slanting surface 22 which is gradually widened by the bottom surface 201 thereof. a pair of oblique push surfaces 24 connected to the outer oblique The surface is extended upwardly and tapered to form a top end 202 and a through hole 26 extending through the top end 202 and the bottom surface 201. The top end 202 of the pushing element 20 has a linear shape, and the bottom surface 201 of the pushing element 20 has an annular shape and has an outer diameter substantially equal to the diameter of the blocking ring surface 126. The pair of reclining faces 24 are beveled and preferably have a smooth bevel. The diameter of the through hole 26 is larger than the maximum diameter of the rivet 80 for the rivet 80 to pass.

The material of the pushing element 20 may be metal or plastic, and the manufacturing method thereof may be a casting method, a turning method, or a plastic injection molding method. The outer contour of the bottom surface 201 of the pushing member 20 corresponds to the outer contour of the blocking ring surface 126 of the receiving body 10; the outer contour 22 has an outer shape corresponding to the inclined wall surface 124 of the receiving body 10.

Referring to FIG. 2 , the pair of guiding blocks 30 are received in the accommodating cavity 12 and correspondingly disposed on the inclined pushing surface 24 . The pair of guiding blocks 30 each have a guiding slot 33 for guiding and pulling. The staples 80 are correctly inserted into the rivet gun head, and when the urging member 20 is moved toward the cover 40, the pair of guiding blocks 30 are respectively moved outward along the pair of reclining faces 24 toward the cover 40.

Each of the guiding blocks 30 can be divided into an upper half 31 and a lower half 32. The upper half 31 is semi-cylindrical and has a flat inner side 311 and an outer cylindrical surface 310. The guide groove 33 is recessed in the longitudinal direction by the inner side surface 311 of the upper half 31. The lower half 32 has an inner bevel 321 extending obliquely from the bottom end of the inner side surface 311 of the upper half 31, and an outer curved surface 322 extending from the outer cylindrical surface 310 of the upper half 31. The inner inclined surface 321 abuts against the inclined surface 24 of the pushing element 20 , and the outer curved surface 322 abuts against the inclined wall surface 124 of the receiving body 10 . The inner inclined surface 321 is preferably a smooth inclined surface and is slidably disposed on the inclined surface 24. The curvature of the outer curved surface 322 corresponds to the inclined wall surface 124 of the receiving body 10 and the outer inclined surface of the pushing member 20 twenty two.

The guide groove 33 of each of the guiding blocks 30 is formed by a first curved surface 312, a supporting portion 314, and a second curved surface 316. In this embodiment, the first curved surface 312 is tapered from the top surface of the guiding block 30 toward the lower half 32 by a semi-conical shape, and the second curved surface 316 is directed toward the lower half 32 by the supporting portion 314. The extension is a semi-cylindrical curved surface having approximately the same outer diameter, but is not limited thereto. The support portion 314 is located at a bottom end of the first curved surface 312 and is in contact with the second curved surface 316 and has a smaller diameter than the maximum diameter of the pull stud 80.

Please refer to FIG. 4A to FIG. 4D , which are respectively a front view, a left side view (same right side view), a top view and a bottom view of the guiding block of the present invention. The guiding block 30 of the present invention can be made of metal or plastic, and can be formed by casting, turning, or plastic injection molding. The pair of guiding blocks 30 of this embodiment are symmetrical to each other, and each guiding block 30 is substantially semi-cylindrical. When the two guiding blocks 30 are combined with the pushing element 20, they are like a pencil shape facing downward and truncating the bottom tip. The two inner bevels 321 are opposed to each other with an oblique angle corresponding to the pair of reclining faces 24 of the pushing member 20, as shown in Fig. 4B. It should be noted that the number of the inclined pushing surfaces 24 of the guiding block 30 and the pushing member 20 and the structure may be changed according to the requirements, and are not limited to the embodiment.

Please refer to FIG. 2 and FIG. 3. FIG. 3 is a cross-sectional view of the ejector insertion mechanism of the present invention. The cover 40 defines a rivet inlet 401 that communicates with the accommodating cavity 12 for the rivet to enter the plucking mechanism. The ejector inlet 401 and the outlet passage 18 of the accommodating body 10 are located on the central axis of the accommodating body 10, and the structure helps the guiding rivet 80 to be positioned into the accommodating body 10 and the rivet 80. Accurately inserted into the rivet gun head. The cover 40 of the embodiment can be provided with a plurality of screw holes to lock the cover 40 to the top surface of the receiving body 10 by the screw 70. The bottom surface of the cover 40 of the embodiment has a ring The groove 42 is provided for positioning one end of the spring 60 (as shown in FIG. 2), whereby the spring 60 is fixed in the receiving body 10 to avoid offset. However, the present invention is not limited thereto. For example, the bottom surface of the cover 40 may be flat, or any positioning structure such as a protruding structure may be formed to position the spring 60 therebetween. In addition, the splicing mechanism of the present embodiment is vertically disposed, but is not limited thereto, and can be disposed horizontally in accordance with design requirements.

As shown in FIG. 3, the normal state of the plucking planting mechanism of the present invention is combined. Since the springs 60 push the pair of guiding blocks 30, the pair of guiding blocks 30 abut against each other along the inclined wall surface 124 of the accommodating body 10, and the two inner inclined surfaces 321 are almost completely abutted against the pushing member 20 Opposite the push surface 24. The bottom surface 201 of the pushing member 20 is placed in the stop ring surface 126 in the receiving body 10.

For ease of description, the rivet 80 is divided into a nail head 81, a nail neck 82, and a shank 83, wherein the nail neck 82 is the widest portion of the rivet 80. The height of the first curved surface 312 of the present embodiment is slightly higher than the nail head 81 of the rivet 80; the minimum radius of the second curved surface 316 is substantially equal to the radius of the shank 83 of the rivet 80. The support portion 314 is located at the bottom end of the first curved surface 312 and has an outer diameter smaller than the diameter of the nail neck 82 for supporting the pull state in a normal state (refer to FIG. 5, the ejector pin is not inserted). Nail 80. Moreover, the diameter of the through hole 26 is larger than the maximum diameter of the nail neck 82.

Next, please refer to FIG. 5 to FIG. 8 , which are illustrations of various operational state diagrams of the lacing planting mechanism of the present invention. First, please refer to FIG. 5, which is a cross-sectional view showing the stapled state (normal state) of the staple insertion mechanism of the present invention. The plucking mechanism of the present invention receives a rivet 80 from the rivet inlet 401 of the cover 40. The rivet 80 passes through the spring 60 and then enters the space formed by the pair of guiding grooves 33 and is clamped therein. The first curved surface 312 first guides the pull pin 80 so that the nail rod 83 is guided to the middle to enter the position of the second curved surface 316; then, the pull pin 80 The nail neck 82 is stopped by the support portion 314. In the present embodiment, after the rivet 80 enters and is positioned at the plucking mechanism, the middle portion of the shank 83 of the rivet 80 is held by the second curved surface 316, and the end of the shank 83 passes through the pushing member 20. The through hole 26 is partially exposed to the bottom end of the receiving body 10.

Please refer to FIG. 6 , which is a cross-sectional view showing the staple insertion mechanism of the present invention. The spigot insertion mechanism of the present embodiment can cooperate with the automatically moving rivet gun head 200. First, the stylus tip 200 is aligned with the outlet passage 18 that receives the bottom end of the body 10, and the shank 83 of the rivet 80 is aligned into the staple groove 210 of the stylus tip 200. Then, the rivet gun head 200 is inserted into the outlet passage 18 of the accommodating body 10 and continues to move upward. At this time, the urging member 20 and the pair of guiding blocks 30 are pulled up by the rivet gun head 200 along the inclined wall surface 124. promote. The inner inclined surface 321 of the pair of guiding blocks 30 slides outward along the inclined surface 24 of the pushing member 20, and gradually separates, so that the space formed by the pair of guiding grooves 33 is enlarged, so that the nail neck of the pulling nail 80 is caused. 82 is able to exit the support portion 314 and move downward through the second curved surface 316 of the guide groove 33.

Please refer to FIG. 7 , which is a cross-sectional view showing the nail insertion mechanism of the present invention. When the rivet gun head 200 is up until it touches the bottom end of the accommodating body 10, its upward stroke is ended. At this time, the pushing member 20 pushes the pair of guiding blocks 30 to a maximum distance, that is, the distance between the second curved surfaces 316 of the pair of guiding blocks 30 is greater than the nail neck 82 of the rivet 80. The diameter is such that the rivet 80 can be completely dropped downward. At this time, the nail head 81 of the rivet 80 is located in the through hole 26 of the pushing member 20, and the shank 83 completely falls into the staple groove 210 of the stylus head 200. At this time, the spring 60 is compressed to accumulate the elastic force.

Please refer to FIG. 8 , which is a cross-sectional view showing the restored state of the plucking mechanism of the present invention. After the staples are completed, the rivet gun head 200 begins to move downwardly away from the rivet inserting mechanism. During the process of leaving, the spring force of the spring 60 pushes the pair of guiding blocks 30 downward. And the pushing element 20. The pair of guiding blocks 30 move downward and in the middle along the inclined wall surface 124 of the accommodating body 10. When the rivet gun head 200 completely leaves the accommodating body 10, the urging member 20 abuts against the damper ring surface 126, and the pair of guiding blocks 30 are again abutted against each other. The rivet gun head 200 can be riveted. The spigot planting mechanism of the present invention returns to the original state, and can re-take another rivet 80.

[Embodiment 2]

Please refer to FIG. 9, which is a cross-sectional view showing a second embodiment of the lacing mechanism of the present invention. Compared with the above embodiment, the structure of this embodiment is mainly such that the bottom surface of the spring 60 and the cover 40a is omitted, and the rest remains unchanged.

[Embodiment 3]

10 and 10A are cross-sectional views showing a third embodiment of the plucking mechanism of the present invention and a state in which the rivet falls into the rivet gun head. The difference from the above embodiment is that the pushing element of this embodiment is coupled to the front end of the rivet gun head 200b, and the head 211 of the front end of the rivet gun head 200b can be used as a pushing element to directly push against a pair of guiding. Block 30b. A relief groove 318 is further disposed at a bottom of each of the guiding blocks 30b, and the escape groove 318 is connected to the bottom of the guiding slot 33. More specifically, the escape groove 318 is outwardly expanded by a portion of the bottom of the second curved surface 316. The height of the escape groove 318 is at least equal to the height of the nail head 81 of the pull stud 80, and the outer diameter of the escape groove 318 is larger than the nail neck 82. When the rivet 80 is dropped toward the rivet gun head 200b, the nail head 81 can be temporarily moved into the escape groove 318 so as not to be caught by the guide block 30b moving inward.

In the operation of this embodiment, the head 211 of the front end of the rivet gun head 200b is used as a pushing element, and the pushing member 211 is moved toward the cover 40a and pushed along the inner inclined surface 321 to make the pair of guiding blocks. 30b moves to the outside. Make The head portion 211 of the front end of the rivet gun head 200b for pushing the component may further include a slanting surface 212 corresponding to the inner slope 321 . Compared to the foregoing embodiment, the head 211 at the front end of the rivet gun head 200b may be slightly elongated as necessary. Alternatively, the length of the pair of guiding blocks 30b may be longer than in the previous embodiment in order to match the length of the rivet 80 of the system. Moreover, the bottom end of the guiding block 30b can directly abut against the stopping ring surface 126 of the receiving body 10.

Incidentally, the slope of the inner slope 321 of the guide block 30b may be smaller, in other words, gentler than the above embodiment. Thereby, the stroke of the head 211 of the rivet gun head 200b can be shortened again, which is enough to remove the pair of guiding blocks 30b by a sufficient distance to both sides, and the rivet 80 falls into the stylus head 200b.

Referring to FIG. 11, the plucking mechanism of the present invention can insert a plurality of rivets 80 into a plurality of rivet gun heads 200 at a time. As shown in the figure, two rivet gun heads 200 are inserted into each other. Nail 80. Then, the two plates 91 and 92 of the workpiece to be joined are placed above the rivet gun head 200, and the rivet 80 is pulled downward by the internal automation mechanism of the rivet gun head 200, so that an entire plane of the workpiece can be completed at one time. Riveting work. In addition, the number of rivet tips can be adjusted according to the number of rivet holes of the workpiece.

In addition, compared with the prior art, the relative movement between the staple insertion mechanism and the rivet gun head 200 of the present invention is an up and down direction, and a horizontal space of the prior art is not required for the mobile transfer mechanism, as a whole. Space can save at least half.

The foregoing is merely illustrative of the invention, and the invention is susceptible to various modifications. When the plucking mechanism is in the vertically used state, the pushing member 20 and the pair of guiding blocks 30 can be returned to the original position by gravity, and thus the spring 60 can be omitted.

In addition, the number of the guiding blocks 30 may be at least two (the shape and the structure are designed according to requirements), and only the inside of the receiving body 10 and the guiding block 30 are required to cooperate to block the rivet and push the oblique pushing surface of the component 20. There may also be at least two for pushing the at least two guiding blocks upward and outward, so that the rivet can be dropped downward. In other words, the number of the guiding blocks 30 may be plural, and a cylinder is synthesized, and the pushing member 20 forms a plurality of oblique pushing surfaces to face the guiding blocks 30.

Through the lacing insertion mechanism of the present invention, the guide rivet 80 can enter the rivet gun head 200 upright to save manpower insertion time and improve the possibility that the rivet may be skewed. Since the rivet can be accurately implanted into the rivet gun head 200, the quality of the rivet can be improved.

Moreover, compared with the prior art, the present invention can utilize gravity to make the rivet enter the rivet gun head 200, and does not require additional pneumatic energy to drive the rivet, so that the nail is stable and the cost can be greatly reduced.

The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.

10‧‧‧ accommodating the ontology

12‧‧‧容容

122‧‧‧ upper wall

124‧‧‧ slanted wall

126‧‧‧stop torus

18‧‧‧Export channel

20‧‧‧Pushing components

201‧‧‧ bottom

202‧‧‧Top

22‧‧‧Outer bevel

24‧‧‧ oblique push surface

26‧‧‧through holes

30, 30b‧‧‧ lead block

31‧‧‧ upper half

310‧‧‧ outer cylindrical surface

311‧‧‧ inside

32‧‧‧ Lower half

321‧‧‧ inner slope

322‧‧‧outer surface

33‧‧‧guide slot

312‧‧‧First surface

314‧‧‧Support

316‧‧‧Second surface

318‧‧‧ escaping slot

40, 40a‧‧‧ cover

401‧‧‧ pull pin entrance

42‧‧‧Round groove

60‧‧‧ Spring

70‧‧‧ screw

80‧‧‧ pulling nails

81‧‧‧nail head

82‧‧‧Neck

83‧‧‧nails

91, 92‧‧‧ board

200, 200b‧‧‧ pull nail gun head

211‧‧‧ head

212‧‧‧ oblique push surface

210‧‧‧nail slot

Fig. 1 is an exploded perspective view showing the plucking mechanism of the present invention.

Fig. 2 is an exploded perspective view showing another perspective of the plucking mechanism of the present invention.

Fig. 3 is a sectional view showing the combination of the plucking mechanism of the present invention.

4A to 4D are respectively a front view, a side view, a plan view, and a bottom view of the guide block of the present invention.

Fig. 5 is a cross-sectional view showing the stapled state of the plucking mechanism of the present invention.

Fig. 6 is a cross-sectional view showing the staple insertion mechanism of the present invention in an open state.

Fig. 7 is a cross-sectional view showing the stapling state of the plucking mechanism of the present invention.

Figure 8 is a cross-sectional view showing the restored state of the staple insertion mechanism of the present invention.

Figure 9 is a cross-sectional view showing a second embodiment of the staple insertion mechanism of the present invention.

Figure 10 is a cross-sectional view showing a third embodiment of the staple insertion mechanism of the present invention.

Fig. 10A is a view showing a state in which a nail puller is inserted into a rivet gun head according to a third embodiment of the lacing planting mechanism of the present invention.

FIG. 11 is a schematic view showing the ejector insertion mechanism of the present invention inserting a rivet in a plurality of rivet gun heads.

10‧‧‧ accommodating the ontology

12‧‧‧容容

126‧‧‧stop torus

30b‧‧‧Guiding block

33‧‧‧guide slot

312‧‧‧First surface

314‧‧‧Support

316‧‧‧Second surface

318‧‧‧ escaping slot

321‧‧‧ inner slope

40a‧‧‧ cover

401‧‧‧ pull pin entrance

Claims (13)

a plucking mechanism for guiding a rivet into a rivet gun head, the spigot insertion mechanism comprising: a accommodating body having a receiving cavity formed by a recessed top surface thereof, and An outlet passage communicating from the bottom surface thereof to the accommodating cavity, wherein the rivet gun head is inserted into the accommodating cavity, wherein the accommodating cavity is formed by an upper wall surface, an inclined wall surface which is tapered from the upper wall surface toward the bottom portion, And a cover ring surface connected to the bottom end of the inclined wall surface; a cover body is fixed on the top surface of the accommodating body, the cover body forms a rivet inlet connected to the accommodating cavity; a pushing member; and at least two guiding blocks are movably received in the receiving cavity, each guiding block has a guiding slot, and an inner inclined surface extending obliquely upward from the bottom end, the at least The two guiding blocks abut against each other along the inclined wall surface of the accommodating body to block the rivet, and are correspondingly disposed on the urging member, wherein the urging member is movably abutted against the at least two The inner bevel of the guiding block, whereby the at least two guiding blocks can follow the movement of the pushing element along the receiving body Outwardly inclined wall surface for slip through the spigot. The plucking mechanism according to claim 1, further comprising a spring disposed between the at least two guiding blocks and the cover. The nipper insertion mechanism according to claim 1, wherein the upper wall surface of the accommodating cavity has a cylindrical shape, and the inclined wall surface has a conical shape, and the damper ring surface has a flat annular shape. The ejector insertion mechanism of claim 1, wherein a bottom of each of the guiding blocks is further provided with a escaping groove, wherein the escaping groove is connected to a bottom of the guiding groove, and the height of the escaping groove is at least equal to One of the rivets Head height. The nipper insertion mechanism of claim 1, wherein the urging member is received in the accommodating cavity and is disposed on the damper ring surface, and the urging member has a downwardly widened surface from the bottom surface thereof The outer inclined surface, the at least two oblique pushing surface is coupled to the outer inclined surface and extends obliquely upward to form a top end, and a through hole penetrating the top end and the bottom surface of the pushing member, and the through hole corresponds to the outlet passage; The inner bevel of each of the guiding blocks is correspondingly disposed on the inclined surface of the pushing member, and the at least two guiding blocks are along the at least two oblique lines when the pushing member moves toward the cover Push to move to the outside. The plucking mechanism according to claim 5, wherein the top end of the pushing element is in a straight line shape, the bottom surface of the pushing element is annular and has an outer diameter substantially equal to the stopping ring surface The diameter of the at least two reclining surfaces is a smooth bevel shape, wherein the diameter of the through hole is larger than the maximum diameter of the peg. The plucking mechanism according to claim 1, wherein each of the guiding blocks has an upper half and a lower half, and the guiding groove is recessed from the inner side of the upper half along the longitudinal direction. The inner inclined surface of the guiding block is formed obliquely from the bottom end of the inner side of the upper half to be formed in the lower half, and the lower half has an outer surface extending downward from the outer side of the upper half a curved surface that abuts against the inclined wall surface of the receiving body. The nipper insertion mechanism of the seventh aspect of the invention, wherein the guiding slot of the guiding block is defined by a first curved surface, a supporting portion, and a second curved surface, the first The curved surface is tapered from the top surface of the guiding block toward the lower half, the supporting portion is located at the bottom end of the first curved surface and has an outer diameter smaller than the maximum diameter of the puller, wherein the second song The face has a semi-cylindrical curved surface and has a uniform outer diameter that is substantially equal to the diameter of a shank of the rivet. The plucking mechanism of claim 1, wherein the diameter of the outlet passage is substantially equal to the diameter of the stylus tip. The plucking mechanism according to claim 1, wherein the pushing element is a head of the front end of the stylus head. A plucking method includes: providing a accommodating body having a receiving cavity formed by a recessed surface thereof, and an outlet passage communicating from the bottom surface thereof to the accommodating cavity, wherein the accommodating cavity Having a slanted wall surface that tapers toward the bottom thereof; a cover body is provided on the top surface of the accommodating body, the cover body forms a rivet inlet that communicates with the accommodating cavity for a rivet Accessing; providing at least two guiding blocks movably received in the accommodating cavity, each guiding block having a guiding slot and an inner inclined surface extending obliquely upward from the bottom end, the at least two guiding And the block abuts against each other along the inclined wall surface of the accommodating body to block the rivet entering the accommodating cavity by the ejector inlet; and the accommodating gun head passes through the outlet passage to enter the accommodating Inside the cavity, and moving toward the cover body by a pushing member and pushing the at least two guiding blocks to the outside along the inner inclined surface, wherein the pushing member movably abuts the at least two guiding blocks An inner bevel whereby the at least two guiding blocks can follow the movement of the pushing element The inclined wall of the body faces outwardly, so that the rivet clamped between the at least two guiding blocks enters the rivet gun head through the guiding slot; and the rivet gun head is removed and the At least two guiding blocks return to their original positions. The plucking method according to claim 11, wherein the urging member is received at a bottom of the accommodating cavity, the urging member has an outer slanting surface which is gradually widened from the bottom surface thereof, and at least two slanting surfaces Connecting to the outer inclined surface and extending obliquely upward to form a top end and a through hole extending through the top end and the bottom surface thereof, the through hole corresponding to the outlet passage; the inner inclined surface of the guiding block is correspondingly disposed on the inclined pushing surface Using the rivet gun head to push against the urging member, and using the urging member to open the at least two guiding blocks, and passing the stylus through the at least two guiding blocks to fall into the pushing member Inside the through hole. The plucking method according to claim 11, wherein the pushing element is a head of the front end of the stylus head.