Glasses leg contact pin guider
By designing a glass leg pin guide with longitudinal grooves and needle rod limiting devices, the problems of operating stability and needle core damage in the prior art are solved, and a more accurate and stable pin assembly process is achieved.
Patent Information
- Application Number
- CN202421852769.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-02
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-08-02
AI Technical Summary
Existing glasses leg pin guides have shortcomings in operating stability and needle core damage, making it difficult to achieve accurate, fast pin assembly without damaging the needle core.
A glass leg pin guide is designed including a mount, a longitudinal push passage, a longitudinal groove and a needle rod limiting device. The mounting base is equipped with a longitudinal groove and a needle rod limiting device. The limiting device is composed of a limiting roller that moves left and right, and is equipped with a pre-tightening spring to ensure that the limiting roller remains stable and accurate during operation.
This design achieves the operating stability of the pin guide with the glasses leg, avoids stuck situations, and ensures that the needle core is not easily damaged during the pin insertion process and has a more accurate position.
Smart Images
Figure CN222882924U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a pin guide for a glasses leg. Background Art
[0002] There are many types of glasses legs. For example, the plate-type glasses legs can be assembled by pushing the needle core into the body of the glasses legs with a push rod (generally assembled under heating conditions), and the glasses legs are formed. In addition to the needle rod, the needle core also has a hinge seat (including a hinge hole, or a pile head) so that the glasses legs and the frame can be connected by hinges. In order to automatically and accurately insert the needle core into the body of the glasses legs (i.e., complete the pin assembly), a guide device can be set to guide the positioning of the needle core during insertion, but the operating stability of the guide device itself and whether the guide device damages the needle core are also issues that need to be considered. Utility Model Content
[0003] In view of the technical problems existing in the background technology, the technical problem solved by the present invention is to provide a glasses leg pin guide which has stable operation and the pin core is not easily damaged.
[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: a glasses leg pin guide, comprising a mounting seat, the mounting seat having a longitudinal pushing channel arranged longitudinally front and back, characterized in that: the mounting seat is also provided with a longitudinal groove and a needle bar limiting device for placing and guiding the needle bar, the longitudinal groove is arranged on the lower side of the longitudinal pushing channel, the needle bar limiting device is arranged on the upper side of the longitudinal groove, the needle bar limiting device comprises a limiting roller wheel that can move left and right, and two rows of the limiting roller wheels are respectively arranged on the left and right sides of the longitudinal pushing channel, and the left and right rows of limiting roller wheels are arranged correspondingly to each other on the left and right, and each limiting roller wheel is respectively equipped with a pre-tightening spring for moving it toward the middle, and the limiting roller wheel is limitedly arranged on the upper side of the longitudinal groove.
[0005] The following various optimizations or supplementary explanations can be made on the above technical solutions respectively.
[0006] For example, the rolling axes of the limiting rolling wheels are arranged vertically; and the limiting rolling wheels are arranged in a one-to-one correspondence with each other on the left and right.
[0007] For another example, an assembly groove is provided on the mounting seat, and the assembly groove is arranged on the left and right sides of the longitudinal pushing channel. The inner side of the assembly groove facing the longitudinal pushing channel is a connecting port, and the limiting rolling wheel is matched and arranged in the assembly groove; the mounting seat adopts a mounting block, the upper side surface of the limiting rolling wheel is abutted against the upper groove surface of the assembly groove, and the lower side surface of the limiting rolling wheel is abutted against the lower groove surface of the assembly groove, and the upper groove surface of the assembly groove is horizontally parallel to the lower groove surface of the assembly groove; the assembly groove is longitudinally connected front and back to form a space for a row of limiting rolling wheels to be assembled together.
[0008] Among them, the lower side surface of the limiting rolling wheel is arranged parallel to the horizontal plane; the lower side surface of the limiting rolling wheel is limited on the upper side of the longitudinal groove; the front end of the longitudinal groove is the export port, the rear end of the longitudinal groove is the import port, the upper port of the longitudinal groove is the upper groove opening, and the lower side surface of the limiting rolling wheel is the limiting covering surface of the upper groove opening.
[0009] Among them, the front end of the longitudinal pushing channel is the output side, the rear end of the longitudinal pushing channel is the input side, the left and right limit roller wheels move toward the middle and approach each other to be in the initial limit state, and the center position of the left and right limit roller wheels after approaching each other corresponds to the middle upper position of the longitudinal groove.
[0010] Among them, each limit roller wheel is respectively equipped with a corresponding rotating shaft, and the rotating shaft is arranged vertically. In addition, an upper movable limit connecting strip hole and a lower movable limit connecting strip hole are arranged on the mounting seat, the upper end of the rotating shaft is connected to the upper movable limit connecting strip hole, and the lower end of the rotating shaft is connected to the lower movable limit connecting strip hole, the rotating shaft is connected to the preload spring, and the upper movable limit connecting strip hole and the lower movable limit connecting strip hole are also respectively connected to the spring assembly connecting hole, the spring assembly connecting hole is arranged on the mounting seat, the preload spring is connected to the spring assembly connecting hole, one end of the preload spring is connected to the rotating shaft, and the other end of the preload spring is connected to the spring assembly connecting hole, and the end of the preload spring is close to the rotating shaft; the left and right parts of the mounting seat are respectively provided with upper and lower rows of spring assembly connecting holes.
[0011] Further optimization is performed in that an assembly groove is further provided on the mounting seat, the assembly groove is equipped with an assembly bar, and the longitudinal groove is arranged on the assembly bar; the upper plane of the assembly bar is arranged flush with the lower side surface of the limiting rolling wheel, or the upper plane of the assembly bar is lower than the lower side surface of the limiting rolling wheel.
[0012] The longitudinal groove is a contoured cavity matching the needle bar.
[0013] Additional optimization, the profiled cavity has an upper and lower double-layer structure, the upper layer of the profiled cavity is the panel cavity, and the lower layer of the profiled cavity is the rod body cavity.
[0014] The left and right limiting rolling wheels move to the left and right sides and separate from each other to form a hinge seat aisle, and the hinge seat aisle is located on the upper side of the longitudinal groove.
[0015] The beneficial effect of the utility model is that the structure layout of the eyeglass leg pin insertion guide is reasonable, wherein the left and right rows of limiting roller wheels only need to roll (rotate) around their own axes and move left and right by themselves, so that the limiting roller wheels run relatively stably and are not prone to getting stuck, thereby avoiding difficulties in successfully completing the pin insertion work after getting stuck; and the left and right rows of limiting roller wheels can cooperate with the longitudinal groove for limiting, thereby avoiding the needle rod from leaving the longitudinal groove during the pushing process, so that the needle rod can be pushed forward under the guidance and positioning of the longitudinal groove, thereby successfully completing the pin insertion work, the relative position of the needle core is more accurate, the needle core is not easy to break, and the limiting roller wheel is not easy to scratch the needle core by rotating, and the needle core is not easy to be damaged; and the left and right limiting roller wheels can not only cooperate with the longitudinal groove for limiting and blocking to form a stable guide, but also can be separated left and right one by one to make way when the hinge seat and the push rod move forward (left and right limiting roller wheels), without affecting other limiting roller wheels that have not been separated. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The following describes the relevant details and working principles of the implementation methods and embodiments of the present utility model in conjunction with the accompanying drawings.
[0017] Figure 1 It is a side elevation view of the utility model.
[0018] Figure 2 for Figure 1 Schematic diagram of the three-dimensional structure.
[0019] Figure 3 for Figure 2 Schematic diagram of the structure of the middle part.
[0020] Figure 4 for Figure 3 Schematic diagram of the structure of the middle part.
[0021] Figure 5 for Figure 2 Schematic diagram of the structure with the limit rolling wheel and other structures hidden in the figure.
[0022] Figure 6 for Figure 2 Schematic diagram of the structure from another angle.
[0023] Figure 7 for Figure 6 The schematic diagram of the middle part is also Figure 3 Schematic diagram of the structure from another angle.
[0024] Figure 8 for Figure 6 Schematic diagram of the structure from another angle.
[0025] In the figure: 1. mounting seat; 2. longitudinal push channel; 3. longitudinal groove; 4. needle bar limit device; 5. limit roller wheel; 6. assembly groove; 7. lower side; 8. upper notch; 9. rotating shaft; 10. upper movable limit connecting strip hole; 11. lower movable limit connecting strip hole; 12. spring assembly connecting hole; 13. assembly groove; 14. assembly strip; 15. panel cavity; 16. rod body cavity; 17. lower groove surface; 18. export port; 19. import port; 20. output side; 21. input side; 22. upper groove surface. DETAILED DESCRIPTION
[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the implementation of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field without making creative work based on the embodiments of the utility model are within the scope of protection of the utility model.
[0027] Referring to the accompanying drawings, the eyeglass leg pin guide in the embodiment of the present embodiment includes a mounting seat 1, and the mounting seat 1 has a longitudinal pushing channel 2 arranged longitudinally front to back, and the longitudinal pushing channel 2 is used for pushing the pin through during operation.
[0028] Among them, the mounting seat 1 is also provided with a longitudinal groove 3 (i.e., the longitudinal groove 3 for placing and guiding the needle bar) and a needle bar limiting device 4. The longitudinal groove 3 is used for placing and guiding the needle bar. The longitudinal groove 3 is arranged on the lower side of the longitudinal pushing channel 2. The needle bar (of the needle core) can be placed on the longitudinal groove 3 and supported, and the longitudinal groove 3 can also guide and position the needle bar for needle insertion.
[0029] Among them, the needle bar limiting device 4 is arranged on the upper side of the longitudinal groove 3. The needle bar limiting device 4 can limit the needle bar in the longitudinal groove 3 at the upper side to prevent the needle bar from leaving the longitudinal groove 3 during the pushing process, so that the needle bar can be pushed forward under the guidance and positioning of the longitudinal groove 3, thereby successfully completing the needle insertion work and the relative position of the needle core is more accurate.
[0030] The needle bar limiting device 4 includes a limiting rolling wheel 5 , and the limiting rolling wheel 5 can move left and right (that is, can move laterally), forming a left and right movable limiting rolling wheel 5 .
[0031] Among them, the left and right rows of the limiting roller wheels 5 are respectively configured on the left and right sides of the longitudinal pushing channel 2, and the left and right rows of limiting roller wheels 5 are arranged corresponding to each other on the left and right sides. The limiting roller wheels 5 cooperate with the (lower) longitudinal groove 3 on the left and right sides of the longitudinal pushing channel 2 to limit the needle bar relatively more balanced; wherein, each limiting roller wheel 5 is respectively equipped with a preload spring (not shown in the figure) to move it toward the middle, the left limiting roller wheel 5 moves horizontally toward the right middle direction, and the right limiting roller wheel 5 moves horizontally toward the left middle direction. When the left and right limiting roller wheels 5 are inserted between the hinge seat (of the needle core) and the push rod, they can move left and right and separate (the left limiting roller wheel 5 moves to the right, and the right limiting roller wheel 5 moves to the left); wherein, the limiting roller wheel 5 is limitedly configured on the upper side of the longitudinal groove 3, and the limiting roller wheel 5 limits and blocks the longitudinal groove 3 on the upper side.
[0032] During operation, the needle core is pre-placed on the longitudinal groove 3 of the mounting seat 1 (generally, it is inserted from the back to the front and placed on the longitudinal groove 3), and the needle rod of the needle core is supported by the longitudinal groove 3. During the placement process, the needle core can also be guided and positioned along with its needle rod by the longitudinal groove 3, and the relative position after placement is accurate; then, the push rod cooperates to push the needle core placed on the eyeglass leg needle guide forward longitudinally and insert it into the eyeglass leg body. During the longitudinal pushing and insertion process, the needle rod of the needle core is guided and positioned on the longitudinal groove 3, and is limited by the left and right limit rollers 5 above, so that The needle core is pushed forward stably and smoothly, and position deviation is not easy to occur; and in the operation process, the hinge seat (of the needle core) on the upper side of the needle bar can overcome the elastic force of the preloaded spring when being pushed forward and when the push rod is pushed forward, and the left and right limit roller wheels 5 are pushed open (separated) in sequence, and the left and right limit roller wheels 5 can be smoothly separated in sequence to allow the hinge seat and the push rod to move forward smoothly, and will not affect the limiting of the needle bar by other limit roller wheels 5 that have not yet been separated, until the hinge seat continues to be pushed forward with the needle bar by the push rod to complete the needle insertion, and the push rod can smoothly retreat and wait for the next operation. During the whole process, the longitudinal groove 3 of the eyeglass leg pin guide and the (left and right) limiting roller wheels 5 cooperate with each other to guide the needle rod, making the pin insertion operation more stable and avoiding position deviation of the needle rod during the pushing process; and the left and right limiting roller wheels 5 can not only cooperate with the longitudinal groove 3 to limit and block to form a stable guide, but also can be separated to the left and right in pairs one by one to make way when the hinge seat and the push rod move forward (left and right limiting roller wheels 5), without affecting other limiting roller wheels 5 that have not been separated.
[0033] The structure and layout of the eyeglass leg pin insertion guide are reasonable, wherein the left and right rows of limiting roller wheels 5 only need to roll (rotate) around their own axes and move left and right by themselves, so that the limiting roller wheels 5 are relatively stable and not prone to getting stuck, thereby avoiding difficulty in successfully completing the pin insertion work after getting stuck; and the left and right rows of limiting roller wheels 5 can cooperate with the longitudinal groove 3 for limiting, so as to avoid the needle rod from leaving the longitudinal groove 3 during the pushing process, so that the needle rod can be pushed forward under the guidance and positioning of the longitudinal groove 3, thereby successfully completing the pin insertion work, and the relative position of the needle core is more accurate, the needle core is not easy to break, and the limiting roller wheel 5 is not easy to scratch the needle core by self-rotation, and the needle core is not easy to be damaged; and the left and right limiting roller wheels 5 can not only cooperate with the longitudinal groove 3 to limit and block to form a stable guide, but also can be separated left and right one by one to make way when the hinge seat and the push rod move forward (left and right limiting roller wheels 5), without affecting other limiting roller wheels 5 that have not been separated.
[0034] The following optimization or further explanation may be performed based on the above embodiments.
[0035] For example, the rolling axis of the limiting roller wheel 5 is arranged vertically, that is, the rolling axis (up and down) of the limiting roller wheel 5 is arranged vertically, so the lower side 7 of the limiting roller wheel 5 can be smoothly limited to the upper side of the longitudinal groove 3 for shielding. The limiting roller wheels 5 are arranged one by one on the left and right, and the left and right are relatively more balanced. During the operation of the needle insertion, the force on the needle rod of the needle core is relatively more balanced.
[0036] For another example, in order to make the structure compact, easy to assemble and stable in operation, the mounting seat 1 in the utility model is provided with mounting grooves 6, which are arranged on the left and right sides of the longitudinal push channel 2, and the limiting roller wheels 5 are matched and arranged in the mounting grooves 6. The left mounting groove 6 is provided for the left row of limiting roller wheels 5, and the right mounting groove 6 is provided for the right row of limiting roller wheels 5. The mounting groove 6 is a connection port toward the inner side of the longitudinal push channel 2, and the limiting roller wheels 5 enter the mounting groove 6 through the connection port. The mounting seat 1 can adopt a mounting block to facilitate subsequent processing.
[0037] The upper side of the limiting roller wheel 5 is against the upper groove surface 22 of the assembly groove 6, and the lower side 7 of the limiting roller wheel 5 is against the lower groove surface 17 of the assembly groove 6. The upper groove surface 22 of the assembly groove 6 is arranged horizontally and parallel to the lower groove surface 17 of the assembly groove 6. The limiting roller wheel 5 can be smoothly matched and installed in the assembly groove 6, and the limiting roller wheel 5 moves left and right in the assembly groove 6 and runs stably. The upper side and lower side 7 of the corresponding limiting roller wheel 5 are also arranged horizontally and parallel. The assembly groove 6 can be arranged to be connected longitudinally from front to back to form a space for assembling a row of limiting roller wheels 5 together, which is convenient for processing.
[0038] Among them, the lower side surface 7 of the limiting rolling wheel 5 is set parallel to the horizontal plane; the lower side surface 7 of the limiting rolling wheel 5 is limited on the upper side of the longitudinal groove 3; the front end of the longitudinal groove 3 is the outlet port 18, and the rear end of the longitudinal groove 3 is the inlet port 19, that is, the needle core moves from the back to the front for output, and the output is guided by the longitudinal groove 3.
[0039] The upper end of the longitudinal groove 3 is the upper groove opening 8 , and the lower side surface 7 of the limiting rolling wheel 5 is the limiting and shielding surface of the upper groove opening 8 , which limits and shields the longitudinal groove 3 .
[0040] Among them, the front end of the longitudinal pushing channel 2 is the output side 20, and the rear end of the longitudinal pushing channel 2 is the input side 21, and the conveying and pushing are carried out from the back to the front to perform the pin insertion operation.
[0041] The left and right limit rollers 5 move toward the middle and approach each other to be in the initial limit state. When the push rod pushes the needle core (including the needle rod, the hinge seat, etc.) forward, the left and right limit rollers 5 will be separated one by one. The center position of the left and right limit rollers 5 after approaching each other corresponds to the middle upper side position of the longitudinal groove 3. The relatively uniform and centered position facilitates the push rod to push in and gradually separate the left and right rows of limit rollers 5 from each other.
[0042] In addition, each limiting roller wheel 5 can be equipped with a corresponding rotating shaft 9, and the limiting roller wheel 5 can rotate around the rotating shaft 9, wherein the rotating shaft 9 is arranged vertically, for example, the through hole in the middle of the limiting roller wheel 5 can be sleeved on the rotating shaft 9. The mounting seat 1 is provided with an upper movable limiting connection bar hole 10 and a lower movable limiting connection bar hole 11, the upper end of the rotating shaft 9 is connected to the upper movable limiting connection bar hole 10, and the lower end of the rotating shaft 9 is connected to the lower movable limiting connection bar hole 11; the upper movable limiting connection bar hole 10 and the lower movable limiting connection bar can not only provide the rotating shaft 9 with a vertical installation connection, but also support the moving range of the limiting rotating shaft 9, and restrict the limiting roller wheel 5 to move left and right within a certain range; wherein the rotating shaft 9 is connected to the preload spring, and the limiting roller wheel 5 is connected to the preload spring through the rotating shaft 9. wherein the upper movable limiting connection bar hole 10 and the lower movable limiting connection bar are provided with transverse holes. In addition, the upper movable limit connecting strip hole 10 and the lower movable limit connecting strip hole 11 are respectively connected to the spring assembly connecting hole 12, and the spring assembly connecting hole 12 is arranged on the mounting seat 1. For example, two upper and lower rows of spring assembly connecting holes 12 are respectively arranged on the left and right parts of the mounting seat 1. The preload spring is connected to the spring assembly connecting hole 12 for the installation of the preload spring. One end of the preload spring is connected to the rotating shaft 9, and the other end of the preload spring is connected to the spring assembly connecting hole 12 (a fastener can be configured for matching connection), and the end of the preload spring is against the rotating shaft 9.
[0043] As an additional optimization, the mounting seat 1 is also provided with an assembly groove 13, and the assembly groove 13 is equipped with an assembly bar 14. The longitudinal groove 3 for placing and guiding the needle bar is set on the assembly bar 14. When needle cores of different specifications need to adapt to different longitudinal grooves 3, different assembly bars 14 can be replaced and installed on the assembly groove 13, and the cost is relatively lower. Among them, the upper plane of the assembly bar 14 is set flush with the lower side 7 of the limiting roller wheel 5; or, the upper plane of the assembly bar 14 is lower than the lower side 7 of the limiting roller wheel 5; ensure that the lower side 7 of the limiting roller wheel 5 can stably and smoothly limit and block the upper end (i.e., the upper notch 8) of the longitudinal groove 3.
[0044] In addition, the longitudinal groove 3 is a profiling cavity that matches the needle bar so as to match the shape of the needle bar, and the needle bar placement and guidance positioning is smoother and more stable. For example, the profiling cavity has an upper and lower double-layer structure, the upper layer of the profiling cavity is the panel cavity 15, and the lower layer of the profiling cavity is the rod body cavity 16. The profiling cavity can match the needle bar having a rod body and a panel combination. The panel is generally a decorative panel, and the hinge seat can be stably set on the decorative panel. The left and right limit roller wheels 5 move to the left and right sides and separate from each other to form a hinge seat aisle. The hinge seat aisle is located on the upper side of the longitudinal groove 3, that is, when the needle core is placed on the longitudinal groove 3, the hinge seat is exposed above the longitudinal groove 3. When the needle core is pushed forward by the push rod, the hinge seat will separate the left and right limit roller wheels 5 and pass through the hinge seat aisle.
Claims
1. A pin guide for eyeglass leg, comprising a mounting seat (1), the mounting seat (1) having a longitudinal push channel (2) arranged longitudinally in the front and rear directions, characterized in that: The mounting seat (1) is also provided with a longitudinal groove (3) for placing and guiding the needle bar and a needle bar limiting device (4). The longitudinal groove (3) is arranged on the lower side of the longitudinal pushing channel (2). The needle bar limiting device (4) is arranged on the upper side of the longitudinal groove (3). The needle bar limiting device (4) includes a limiting roller (5) that can move left and right. Two rows of limit rollers (5) are respectively arranged on the left and right sides of the longitudinal pushing channel (2). The left and right rows of limit rollers (5) are arranged corresponding to each other. Each limiting rolling wheel (5) is respectively provided with a preload spring for moving it toward the middle. The limiting rolling wheel (5) is configured to limit the position of the upper side of the longitudinal groove (3).
2. The eyeglass leg pin guide as claimed in claim 1, characterized in that: The rolling axes of the limiting rolling wheels (5) are arranged vertically; and the limiting rolling wheels (5) are arranged in a one-to-one correspondence with each other on the left and right.
3. The eyeglass leg pin guide according to claim 1 or 2, characterized in that: The mounting seat (1) is provided with an assembly groove (6), which is arranged on the left and right sides of the longitudinal push channel (2), and the inner side of the assembly groove (6) facing the longitudinal push channel (2) is a connection port, and the limiting roller wheel (5) is matched and arranged in the assembly groove (6); the mounting seat (1) adopts a mounting block, The upper side surface of the limiting rolling wheel (5) is abutted against the upper groove surface (22) of the assembly groove (6). The lower side surface (7) of the limiting rolling wheel (5) is in contact with the lower groove surface (17) of the assembly groove (6). The upper groove surface (22) of the assembly groove (6) is arranged horizontally and parallel to the lower groove surface (17) of the assembly groove (6); The assembly grooves (6) are arranged to be longitudinally connected front to back to form a space for assembling a row of limiting rolling wheels (5) together.
4. The eyeglass leg pin guide according to claim 1 or 2, characterized in that: The lower side surface (7) of the limiting rolling wheel (5) is arranged parallel to the horizontal plane; the lower side surface (7) of the limiting rolling wheel (5) is limited at the upper side of the longitudinal groove (3); The front end of the longitudinal groove (3) is an outlet port (18). The rear end of the longitudinal groove (3) is an introduction port (19). The upper end of the longitudinal groove (3) is an upper groove opening (8), and the lower side surface (7) of the limiting rolling wheel (5) is a limiting cover surface of the upper groove opening (8).
5. The eyeglass leg pin guide according to claim 1, characterized in that: The front end of the longitudinal push channel (2) is the output side (20). The rear end of the longitudinal push channel (2) is the input side (21). The left and right limit rollers (5) move toward the middle and approach each other to be in the initial limit state. The center position of the left and right limit rolling wheels (5) after they are brought close to each other corresponds to the middle upper position of the longitudinal groove (3).
6. The eyeglass temple pin guide as claimed in claim 1, characterized in that: Each limiting rolling wheel (5) is respectively equipped with a corresponding rotating shaft (9), and the rotating shaft (9) is arranged vertically. The mounting seat (1) is provided with an upper movable limit connecting strip hole (10) and a lower movable limit connecting strip hole (11). The upper end of the rotating shaft (9) is connected to the upper movable limit connecting strip hole (10). The lower end of the rotating shaft (9) is connected to the lower movable limit connecting strip hole (11). The rotating shaft (9) is connected to the preload spring. The upper movable limit connecting strip hole (10) and the lower movable limit connecting strip hole (11) are also respectively connected to spring assembly connecting holes (12). The spring assembly connecting holes (12) are arranged on the mounting seat (1), and the preload spring is connected to the spring assembly connecting holes (12). One end of the preload spring is connected to the rotating shaft (9), the other end of the preload spring is connected to the spring assembly connection hole (12), and the end of the preload spring is abutted against the rotating shaft (9); The left and right parts of the mounting seat (1) are respectively provided with upper and lower rows of spring assembly connection holes (12).
7. The eyeglass temple pin guide as claimed in claim 1, characterized in that: The mounting seat (1) is also provided with an assembly groove (13), the assembly groove (13) is provided with an assembly bar (14), and the longitudinal groove (3) is arranged on the assembly bar (14); The upper plane of the assembly strip (14) is arranged flush with the lower side surface (7) of the limiting rolling wheel (5), or the upper plane of the assembly strip (14) is lower than the lower side surface (7) of the limiting rolling wheel (5).
8. The eyeglass temple pin guide as claimed in claim 1, characterized in that: The longitudinal groove (3) is a concave cavity matching the needle bar.
9. The eyeglass temple pin guide as claimed in claim 8, characterized in that: The imitation concave cavity has an upper and lower double-layer structure, the upper layer of the imitation concave cavity is a panel cavity (15), and the lower layer of the imitation concave cavity is a rod body cavity (16).
10. The eyeglass temple pin guide as claimed in claim 1, characterized in that: The left and right limiting rolling wheels (5) move to the left and right sides and separate from each other to form a hinge seat aisle, and the hinge seat aisle is located on the upper side of the longitudinal groove (3).