Automatic guitar capo assembling line

Abstract

The invention provides an automatic guitar capo assembling line, and relates to the field of musical instrument equipment assembling. The guitar capo automatic assembly line comprises a base table and further comprises a displacement working assembly and a spring clamping assembly which are installed on the base table, the displacement working assembly comprises a wheel disc capable of rotating on the base table and a plurality of limiting assemblies installed on the wheel disc, and the limiting assemblies are used for containing capo. The wheel disc can be controlled to periodically rotate by 45 degrees on the base table, and the spring clamping assembly comprises a rotary lifter installed on the base table and a spring loader installed on the rotary lifter. According to the automatic guitar capo assembling line, the effect that a spring is successfully clamped at a time can be easily achieved by arranging the spring clamping assembly, the spring can be easily assembled by arranging the limiting assembly, the original state can be kept after the spring is assembled, and later-period pin installation is facilitated; and the assembly line machining effect can be achieved on one workbench.

Description

Technical Field

[0001] The invention relates to the field of musical instrument equipment assembly, in particular to an automatic assembly line for a guitar capo. Background Art

[0002] As we all know, the guitar capo is a commonly used auxiliary tool in guitar playing and singing. It is mainly used to adjust the pitch of the guitar. When changing the key, the existing frets can be pressed to raise the melody by the corresponding interval to make it coordinate with the singer's voice. Using the original fingering method to play greatly reduces the difficulty of changing the key.

[0003] The guitar capo consists of a clamp handle, a clamp rod, a spring, rivets and a logo. The shapes of its components are complex and not easy to assemble automatically. If it is assembled manually, the assembly speed will be reduced and the quality of the guitar capo will be affected, especially the installation of the spring. The spring needs to be in a compressed state during the assembly process, which makes the installation of the spring more difficult.

[0004] Existing patent: CN111136460B discloses an automatic assembly line for a guitar capo, comprising a rotating mechanism, a first feeding mechanism, a clamping rod assembly mechanism, a riveting mechanism, a logo assembly mechanism and a spring assembly mechanism, wherein the first feeding mechanism, the clamping rod assembly mechanism, the riveting mechanism, the logo assembly mechanism and the spring assembly mechanism are circumferentially distributed beside the rotating mechanism, the clamping rod assembly mechanism comprises a clamping rod assembly assembly and a rivet assembly assembly, wherein the rivet assembly assembly is located above the clamping rod assembly assembly, the logo assembly mechanism comprises a glue dispenser and a logo assembly assembly, wherein the glue dispenser is located above the logo assembly assembly, the spring assembly mechanism comprises a spring feeding assembly and a spring assembly assembly, wherein the spring assembly assembly is located above the spring feeding assembly.

[0005] The beneficial effect of the above invention is that it can automatically complete the assembly of the guitar capo, reduce manual labor, increase production speed, and improve product quality.

[0006] However, it is difficult to assemble by clamping the two ends of the spring. In the guitar capo, the spring is usually buckled on two pins at both ends. After shrinking it, it is difficult to insert it smoothly, so that it is easy to cause problems such as spring detachment and assembly deviation during assembly. Summary of the invention

[0007] In view of the deficiencies in the prior art, the present invention provides an automatic assembly line for a guitar capo, which solves the problems raised in the above background technology.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: an automatic assembly line for a guitar capo, comprising a base, a position-shifting working component and a spring clamping component mounted on the base, the position-shifting working component comprising a wheel that can rotate on the base and a plurality of limiting components mounted on the wheel, the limiting component is used to place the capo, and the wheel can be controlled to rotate forty-five degrees on the base periodically; The spring clamping assembly includes a rotary lifter mounted on the base and a spring loader mounted on the rotary lifter, the spring loader is used to install a spring in the capo on the limiting assembly, the rotary lifter can achieve the lifting function and the upper end can play the role of rotation; The base is also provided with a pin placer for replenishing pins; and a puncher for loading pins.

[0009] Preferably, the spring loader includes a cross bar and two telescopic devices, the rotary lifter includes a telescopic rod and a rotating table, the telescopic rod is fixed to the base, the rotating table is fixed to the upper end of the telescopic rod, the cross bar is fixed to the output end of the rotating table, the cross bar can rotate, and the rotating table is used to rotate the telescopic rod one hundred and eighty degrees each time.

[0010] Preferably, the spring clamping assembly also includes a spring feeder. The rotation of the cross bar can make the telescopic device correspond to the spring feeder, and is used to receive the spring discharged by the spring feeder. The cross bar can also make the telescopic device rotate with the spring to the limiting assembly on the wheel disc, and the spring feeder can release a spring periodically.

[0011] Preferably, the telescopic device comprises a bottom rod and two groups of clamping blocks, each group of clamping blocks has two clamping blocks, and the two clamping blocks in any group are connected by an electric lead screw to bring the two clamping blocks closer to each other, and one of the clamping blocks in any group is installed in the bottom rod and is also connected by an electric lead screw, and the electric lead screw can realize the relative movement of the two clamping blocks in one group, and the other electric lead screw can realize the relative movement of the two groups of clamping blocks; The sides of the two groups of clamping blocks that are close to each other are both provided with arc surfaces, and the inner walls of the arc surfaces are both provided with thread grooves. The spring feeder can make the spring fall between the two groups of clamping blocks.

[0012] Preferably, the limiting assembly includes a sleeve, a core shaft, a push rod and a placement platform, the placement platform is fixed on the wheel disc, the sleeve is fixed to the bottom of the placement platform and corresponds to the wheel disc, the core shaft is in the sleeve and connected with it for up and down sliding, the upper end of the core shaft protrudes from the placement platform, a compression spring is arranged in the sleeve, the upper end of the compression spring is fixed to the core shaft, the lower end of the compression spring is fixed to the inner bottom wall of the sleeve, the push rod passes through the compression spring, the upper end of which is fixed to the core shaft, and the lower end of the push rod can pass through the sleeve; The upper end of the mandrel is a tapered end, and the upper surface is a planar structure; A pin rod for limiting the capo is installed on the placement table.

[0013] Preferably, the punch includes two hydraulic cylinders, which are fixed to the base and correspond to the placement platform on the wheel disc.

[0014] Preferably, the displacement working component also includes a bottom ring, a groove is provided on the bottom ring, an incomplete track is provided in the groove, the sleeve slides in the groove along with the wheel, when the sleeve is not on the incomplete track, the core shaft can be fully pressed, when the sleeve is on the incomplete track, the core shaft can only be lowered to the placement table at most.

[0015] Preferably, the pin placer comprises a placing barrel, which can periodically place a pin onto the core shaft.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The automatic assembly line of the guitar capo is provided with a spring clamping assembly, and the midpoint of the spring that falls between the two groups of clamping blocks is just at the center of the two clamping blocks of one group, so the two ends of the spring are outside the two clamping blocks after falling in, and the spring is restricted after the two groups of clamping blocks are closed, and when the two clamping blocks in the two groups of clamping blocks are close to each other, the spring can be compressed. Due to the provision of a threaded groove, the compressed position of the spring is always a part located between the two clamping blocks, and the outer end will not move. Therefore, after the spring is compressed, it can be more easily placed between the two clamping handles of the capo, and the inner ring of the spring can also be sleeved on the pin of the clamping handle, which can easily achieve the effect of successful clamping at one time.

[0017] 2. The automatic assembly line for guitar capo sets a limiting component. Due to the function of the placement table and the pin rod, the two clamping handles of the capo can be placed on the placement table and in an open state, so the spring can be easily assembled. After the spring is assembled, it will remain in its original state, which is convenient for the later installation of the pin.

[0018] 3. The automatic assembly line of guitar capo is equipped with a wheel. After the spring is installed, the wheel rotates and moves the capo to the placement barrel. At this time, a pin can fall into the connection hole of the capo. The wheel continues to rotate, and the hydraulic cylinder punches the pin, so that the pin passes through the two capos and deforms. At this time, the capo will be ejected after punching due to the reaction force of the mandrel, and then turned over and moved to the next station. Another hydraulic cylinder is used to punch it again, which can achieve the effect of assembly line processing on a workbench. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a top view of the structure of the present invention; Figure 3 It is a structural diagram of the displacement working component of the present invention; Figure 4 It is a partial structural diagram of the displacement working component of the present invention; Figure 5 For the present invention Figure 4 A magnified view of the structure at center A; Figure 6 It is a structural diagram of the spring clamping assembly of the present invention; Figure 7 It is a structural cross-sectional view of the displacement working component of the present invention; Figure 8 For the present invention Figure 7 A magnified view of the structure at B in the middle; Fig. 9 It is a schematic structural diagram of the bottom ring of the present invention.

[0020] In the figure: 1. Abutment; 2. Displacement working components; 201. Roulette; 202. Restriction component; 2021, sleeve; 2022, mandrel; 2023, ejector rod; 2024, placing table; 2025, compression spring; 2026, pin rod; 203, bottom ring; 204, groove; 205, incomplete track; 3. Spring clamping assembly; 301, rotary lifter; 3011, telescopic rod; 3012, rotating table; 302, spring loader; 3021, crossbar; 3022, telescopic device; 30221, bottom rod; 30222, clamping block; 30223, cambered surface; 30224, threaded groove; 303, spring feeder; 4. Pin placer; 401. Place the bucket; 5. Punch; 501. Hydraulic cylinder. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0022] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0023] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0024] In addition, in this application, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0025] like Figure 1-Figure 9 As shown, an automatic assembly line for a guitar capo includes a base 1, a shifting working component 2 and a spring clamping component 3 installed on the base 1, the shifting working component 2 includes a wheel 201 that can rotate on the base 1 and a plurality of limiting components 202 installed on the wheel 201, and the limiting components 202 are used to place the capo.

[0026] The spring clamping assembly 3 comprises a rotary lifter 301 mounted on the base 1 and a spring loader 302 mounted on the rotary lifter 301, the spring loader 302 being used to install a spring into the capo clamp on the limiting assembly 202; A pin placer 4 is also installed on the base 1 for replenishing pins; a punch 5 is also installed for loading pins.

[0027] The base 1 is a multi-layer structure, each layer is made of aluminum alloy plates, which are used to fix additional equipment on the top and are connected by reinforcing columns on all sides. The aluminum alloy plates used for fixing can be customized in size according to the upstream or downstream equipment, which can meet the needs of manual clamping and can also meet various operating methods such as clamping with a robotic arm. A motor and an axial bearing for support are installed at the bottom of the wheel 201. The motor is fixed on the machine platform, and the output end of the motor is connected to the wheel 201. The motor is controlled by a servo encoder, and the rotation form is periodic rotation, which rotates the wheel 201 forty-five degrees each time.

[0028] The rotary lifter 301 is used to achieve precise lifting and output rotation.

[0029] like Figure 1-Figure 5 As shown: the spring loader 302 includes a cross bar 3021 and two telescopic devices 3022, the rotary lifter 301 includes a telescopic rod 3011 and a rotating table 3012, the telescopic rod 3011 is fixed to the base 1, the rotating table 3012 is fixed to the upper end of the telescopic rod 3011, the cross bar 3021 is fixed to the output end of the rotating table 3012, and the cross bar 3021 can rotate.

[0030] The telescopic rod 3011 is an electric screw-type extension rod, which can accurately control the extension amount and length with an error of no more than 2mm. The rotating table 3012 is composed of a motor and two pedestals that can rotate relative to each other. It can independently control the rotation angle. According to the requirements of installing the spring, the rotating table 3012 needs to be set to rotate 180 degrees each time and needs to be aligned regularly.

[0031] like Figure 3-Figure 5 As shown: the spring clamping assembly 3 also includes a spring feeder 303. The rotation of the cross bar 3021 can make the telescopic device 3022 correspond to the spring feeder 303, and is used to receive the spring fed by the spring feeder 303. The cross bar 3021 can also make the telescopic device 3022 rotate with the spring to the limiting assembly 202 on the wheel 201.

[0032] The spring feeder 303 is a rectangular box, whose internal length corresponds to the length of the spring, and the internal width corresponds to the diameter of the spring, so that the spring can be arranged up and down. Two rubber columns for releasing the spring are installed at the bottom of the spring feeder 303. The rubber columns are driven by a servo motor. When the spring falls, it will be clamped in the two rubber columns. When the servo motor rotates, the two rubber columns can rotate accordingly, thereby squeezing out a spring. Therefore, the lowering of the spring can be controlled regularly, and according to the rotation of the wheel 201, programmed feeding can be achieved.

[0033] like Figure 5As shown: the telescopic device 3022 includes a bottom rod 30221 and two groups of clamping blocks 30222, each group of clamping blocks 30222 has two clamping blocks 30222, and the two clamping blocks 30222 of any group are connected by an electric lead screw to make the two clamping blocks 30222 approach each other, and one of the clamping blocks 30222 of any group is installed in the bottom rod 30221 and is also connected by an electric lead screw. The electric lead screw can realize the relative movement of the two clamping blocks 30222 in one group, and the other electric lead screw can realize the relative movement of the two groups of clamping blocks 30222; The two sets of clamping blocks 30222 are each provided with an arc surface 30223 on the side close to each other, and the inner wall of the arc surface 30223 is each provided with a thread groove 30224 . The spring feeder 303 can make the spring fall between the two sets of clamping blocks 30222 .

[0034] The bottom bar 30221 is a track, and one of the clamping blocks 30222 in each group is installed in the bottom bar 30221 and is slidably connected to it. The electric screw includes a motor and a ball screw structure. A sliding rod is also used between the two sliders to limit linear sliding. The rotation mode of the cross bar 3021 is reciprocating rotation, so as to avoid the entanglement of the motor cables. The cables of any motor pass through the cross bar 3021 and are connected to the equipment below. The cables are lengthened and protected to avoid the problem of motor power failure in a long-term processing environment.

[0035] The thickness of the clamp block 30222 can be selected according to the actual length of the spring to be installed. If the spring is soft and short, the clamp block 30222 with a narrower width can be replaced. The arc surface 30223 structure of the clamp block 30222 can more easily adapt to the shape of the spring. The threaded groove 30224 arranged inside can be used to clamp the spring. Even when facing a spring with higher hardness, it can still be stably clamped without sliding.

[0036] like Figure 1-Figure 8 As shown: the limiting component 202 includes a sleeve 2021, a core shaft 2022, a push rod 2023 and a placement platform 2024, the placement platform 2024 is fixed on the wheel disc 201, the sleeve 2021 is fixed to the bottom of the placement platform 2024 and corresponds to the wheel disc 201, the core shaft 2022 is in the sleeve 2021 and connected with it for sliding up and down, the upper end of the core shaft 2022 protrudes from the placement platform 2024, the sleeve 2021 is provided with a compression spring 2025, the upper end of the compression spring 2025 is fixed to the core shaft 2022, the lower end of the compression spring 2025 is fixed to the inner bottom wall of the sleeve 2021, the push rod 2023 passes through the compression spring 2025, the upper end of which is fixed to the core shaft 2022, and the lower end of the push rod 2023 can pass through the sleeve 2021; The upper end of the mandrel 2022 is a tapered end, and the upper surface is a flat structure; A pin rod 2026 for limiting the capo is installed on the placement table 2024.

[0037] The placement table 2024 is installed on the top of the wheel disc 201 by bolts, and the upper end of the sleeve 2021 is also installed on the bottom of the wheel disc 201 by bolts. The wheel disc 201 is provided with a hole corresponding to the sleeve 2021 and the placement table 2024, and the core shaft 2022 passes through the hole. The upper end of the core shaft 2022 is a tapered end, and the lower end is a cylindrical structure. The cylindrical structure can limit the connection between the two clamping handles of the capo, and the height of the core shaft 2022 should be lower than the thickness of the capo. The pin rod 2026 is installed on the placement table 2024 in the form of a thread. The pin rod 2026 can change its position on the placement table 2024 to adapt to the existing various specifications of capos. Changing the position of the pin rod 2026 requires ensuring that the two clamping handles are in an open state after the capo is placed.

[0038] The punch 5 includes two hydraulic cylinders 501 , which are fixed to the base 1 , and the hydraulic cylinders 501 correspond to the placement platform 2024 on the wheel disc 201 .

[0039] The output end of the hydraulic cylinder 501 faces downward and is equipped with a pressure head for punching the pin. The conical end structure of the core shaft 2022 allows the pin to contact and deform when the pin is pressed down. The pin is generally made of aluminum alloy and is easy to deform after punching, so that the two clamping handles can be connected so that the two clamping handles are hinged with the pin as the connection point.

[0040] The displacement working component 2 also includes a bottom ring 203, a groove 204 is provided on the bottom ring 203, an incomplete track 205 is provided in the groove 204, the sleeve 2021 slides in the groove 204 along with the wheel 201, when the sleeve 2021 is not on the incomplete track 205, the core shaft 2022 can be fully pressed, when the sleeve 2021 is on the incomplete track 205, the core shaft 2022 can only descend to the placement table 2024 at most.

[0041] When the wheel 201 rotates, the sleeve 2021 contacts the bottom ring 203 with grease applied therebetween. The bottom ring 203 can be used to support the sleeve 2021 , while the groove 204 is used for the push rod 2023 to pass through.

[0042] The pin placer 4 includes a placement barrel 401 , which can periodically place a pin onto the core shaft 2022 .

[0043] The placement barrel 401 cooperates with the pin assembly line in the prior art.

[0044] When in use, first place the parts of the two parts of the capo clamp on the placement table 2024, open the two clamping handles and make the pin rod 2026 limit the clamping handles, and put the rotating points of the two clamping handles on the core shaft 2022. The height of the core shaft 2022 is lower than the thickness of the two clamping handles. As the wheel 201 moves with the capo clamp to the spring clamping assembly 3, the spring feeder 303 will release a spring between the two clamping blocks 30222. The midpoint of the spring that falls between the two groups of clamping blocks 30222 is just at the center of the two clamping blocks 30222 of one group. After falling in, the two ends of the spring are outside the two clamping blocks 30222. When the two groups of clamping blocks 30222 are closed, the spring is restricted. When the two clamping blocks 30222 in the two groups of clamping blocks 30222 are close to each other, the spring can be compressed. The compressed position of the spring is always a part located between the two clamping blocks 30222, and the outer end will not move. Therefore, after the spring is compressed, it can be more easily placed in the two clamping blocks of the capo clamp. The inner ring of the spring can also be sleeved on the pin of the clamp handle to achieve clamping at one time. After the spring is installed, the wheel 201 rotates and moves the capo to the placement barrel 401. At this time, a pin can fall into the connecting hole of the capo and is on the core shaft 2022. The wheel 201 continues to rotate, and the first hydraulic cylinder 501 punches the pin so that the pin passes through the two capos. At this time, the sleeve 2021 moves to the incomplete track 205, and the extension of the push rod 2023 is limited. The core shaft 2022 can be compressed a certain distance, so when the hydraulic cylinder 501 applies pressure to the pin, the bottom end of the pin contacts the core shaft 2022 and deforms after passing through the clamp handle. After the hydraulic cylinder 501 is released, the capo will be ejected after being stamped due to the reaction force of the core shaft 2022 and the compression spring 2025, and then turned over and moved to the next workstation. The pin is placed on the placement table 2024, and another hydraulic cylinder 501 is used to stamp it again, and a complete capo can be processed.

[0045] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

[0046] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic assembly line for a guitar capo, comprising a base (1), characterized in that: It also includes a displacement working component (2) and a spring clamping component (3) mounted on the base (1); the displacement working component (2) includes a wheel (201) that can rotate on the base (1) and a plurality of limiting components (202) mounted on the wheel (201); the limiting components (202) are used to place the capo clamp; The spring clamping assembly (3) comprises a rotary lifter (301) mounted on the base (1) and a spring loader (302) mounted on the rotary lifter (301), wherein the spring loader (302) is used to install a spring in a capo clamp on the limiting assembly (202); The base (1) is also equipped with a pin placer (4) for replenishing pins, and a punch (5) for loading pins.

2. The automatic assembly line for guitar capos according to claim 1, characterized in that: The spring loader (302) comprises a crossbar (3021) and two telescopic devices (3022); the rotary lifter (301) comprises a telescopic rod (3011) and a rotating platform (3012); the telescopic rod (3011) is fixed to the base platform (1); the rotating platform (3012) is fixed to the upper end of the telescopic rod (3011); the crossbar (3021) is fixed to the output end of the rotating platform (3012); and the crossbar (3021) is rotatable.

3. The automatic assembly line for guitar capos according to claim 2, characterized in that: The spring clamping assembly (3) further comprises a spring feeder (303). The cross bar (3021) can rotate to enable the telescopic device (3022) to correspond to the spring feeder (303) and receive the spring fed by the spring feeder (303). The cross bar (3021) can also enable the telescopic device (3022) to rotate with the spring to the limiting assembly (202) on the wheel (201).

4. The automatic assembly line for guitar capos according to claim 3, characterized in that: The telescopic device (3022) comprises a bottom rod (30221) and two groups of clamping blocks (30222), each group of clamping blocks (30222) comprises two clamping blocks, and the two clamping blocks (30222) of any group are connected by an electric lead screw, so as to bring the two clamping blocks (30222) closer to each other; one of the clamping blocks (30222) of any group is installed in the bottom rod (30221) and is also connected by an electric lead screw, the electric lead screw can realize the relative movement of the two clamping blocks (30222) in one group, and the other electric lead screw can realize the relative movement of the two groups of clamping blocks (30222); The two groups of clamping blocks (30222) are provided with arc surfaces (30223) on the sides close to each other, and the inner walls of the arc surfaces (30223) are provided with thread grooves (30224). The spring feeder (303) can make the spring fall between the two groups of clamping blocks (30222).

5. The automatic assembly line for guitar capos according to claim 4, characterized in that: The limiting assembly (202) comprises a sleeve (2021), a core shaft (2022), a push rod (2023) and a placement platform (2024); the placement platform (2024) is fixed on the wheel disc (201); the sleeve (2021) is fixed on the bottom of the placement platform (2024) and corresponds to the wheel disc (201); the core shaft (2022) is located in the sleeve (2021) and is slidably connected thereto; the upper end of the core shaft (2022) is fixed to the bottom of the placement platform (2024) and corresponds to the wheel disc (201); The end of the sleeve (2021) protrudes from the placement table (2024), a compression spring (2025) is provided in the sleeve (2021), the upper end of the compression spring (2025) is fixed to the core shaft (2022), the lower end of the compression spring (2025) is fixed to the inner bottom wall of the sleeve (2021), a push rod (2023) passes through the compression spring (2025), the upper end of the push rod (2023) is fixed to the core shaft (2022), and the lower end of the push rod (2023) can penetrate the sleeve (2021); The upper end of the core shaft (2022) is a tapered end, and the upper surface is a planar structure; A pin rod (2026) for limiting the capo is installed on the placement platform (2024).

6. The automatic assembly line for guitar capos according to claim 5, characterized in that: The punch (5) comprises two hydraulic cylinders (501), wherein the hydraulic cylinders (501) are fixed to the base (1), and the hydraulic cylinders (501) correspond to the placement platform (2024) on the wheel disc (201).

7. The automatic assembly line for guitar capos according to claim 6, characterized in that: The displacement working assembly (2) further comprises a bottom ring (203), the bottom ring (203) being provided with a groove (204), the groove (204) being provided with an incomplete track (205), the sleeve (2021) sliding in the groove (204) along with the wheel (201), when the sleeve (2021) is not on the incomplete track (205), the core shaft (2022) can be fully pressed, and when the sleeve (2021) is on the incomplete track (205), the core shaft (2022) can only be lowered to the placement table (2024) at most.

8. The automatic assembly line for guitar capos according to claim 7, characterized in that: The pin placement device (4) comprises a placement barrel (401), and the placement barrel (401) is capable of periodically placing a pin onto the core shaft (2022).

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