Combined optical fiber head injection molding machine

Abstract

The invention relates to the technical field of injection molds, and discloses a combined optical fiber head injection molding machine which comprises a first mold and a second mold, mold cavities are formed in the second mold and the first mold, a first cavity is further formed in the first mold, and a baffle is installed between the first cavity and the mold cavity; and an adjusting device is slidably connected to the interior of the first cavity and comprises a sealing column slidably connected to the interior of the first cavity, a shaft column is installed at the upper end of the sealing column, the shaft column penetrates through the baffle and extends into the mold cavity, and the outer surface of the shaft column is further sleeved with a protection ring. The piston plates abut against the inner wall of the protection ring, the distances of the piston plates sliding out of the shaft column are equal, the piston plates push the protection ring to move, the axis of the protection ring is aligned with the axis of the shaft column, the protection ring is prevented from being exposed out of the optical fiber head after injection molding is completed, and the injection molding effect is improved.

Description

Technical Field

[0001] The invention relates to the field of injection molding molds, in particular to a combined optical fiber head injection molding machine. Background Art

[0002] Injection molding, also known as injection molding, is a molding method that combines injection and molding. The advantages of the injection molding method are fast production speed, high efficiency, automated operation, a wide variety of colors, shapes from simple to complex, sizes from large to small, and precise product size. The product is easy to update and can be made into parts with complex shapes. Injection molding is suitable for mass production and molding processing fields such as products with complex shapes. At a certain temperature, the completely molten plastic material is stirred by a screw, injected into the mold cavity with high pressure, and cooled and solidified to obtain a molded product. This method is suitable for mass production of parts with complex shapes and is one of the important processing methods.

[0003] In order to improve the shielding resistance of the optical fiber head, it is necessary to wrap shielding material on the optical fiber head or inside the optical fiber head. After long-term use, the above two methods will cause the shielding material on the optical fiber head to wear, which is not conducive to long-term use. The shielding material can also be implanted into the optical fiber head for long-term use. However, the existing combined optical fiber head injection molding machine has a poor implantation effect and the shielding material may be exposed. Summary of the invention

[0004] The present invention provides a combined optical fiber head injection molding machine, which solves the problem mentioned in the above background technology that the existing combined optical fiber head injection molding machine has a poor effect of implanting shielding materials.

[0005] The present invention provides the following technical solution: a combined optical fiber head injection molding machine comprises a first mold and a second mold, wherein the second mold and the first mold are both provided with mold cavities, and the first mold is further provided with a first cavity, a baffle is installed between the first cavity and the mold cavity, an adjusting device is slidably connected to the interior of the first cavity, the adjusting device comprises a sealing column slidably connected to the interior of the first cavity, an axial column is installed at the upper end of the sealing column, and the axial column penetrates the baffle and extends to the interior of the mold cavity;

[0006] The outer surface of the shaft column is also sleeved with a protective ring;

[0007] A plurality of supporting devices are installed on the outer surface of the shaft column, and the supporting devices are used to support the protective ring. The supporting devices include a piston groove arranged inside the shaft column, and the piston groove is connected to the shaft column through a third spring. A piston plate is slidably connected inside the piston groove, and the piston plate is used to abut against the inner wall of the protective ring.

[0008] As an optional solution of the combined optical fiber head injection molding machine of the present invention, one end of the piston plate is slidably connected with a friction plate, and the friction plate is used to abut against the inner wall of the protective ring.

[0009] As an optional solution of the combined optical fiber head injection molding machine of the present invention, a groove plate is installed on the upper end of the piston plate, one end of the groove plate is attached to the inner wall of the protective ring, and the other end of the groove plate is attached to the outer surface of the shaft column;

[0010] The interior of the groove plate is used to store liquid, and the lower end of the groove plate is connected to the upper end of the friction plate.

[0011] As an optional solution of the combined optical fiber head injection molding machine described in the present invention, a sixth groove is provided at the lower end of the piston plate, and the sixth groove is used to spray air onto the injection liquid.

[0012] As an optional solution of the combined optical fiber head injection molding machine of the present invention, wherein: an ironing device is installed at the upper end of the groove plate, and the ironing device is used to pierce the protective ring;

[0013] The ironing device comprises a protruding bar mounted on the upper end of the groove plate, one end of the protruding bar is rotatably connected to an ironing bar, and the ironing bar is used to abut against the protective ring;

[0014] The outer surface of the shaft column is also provided with a through groove, and the protruding bar and the rack are used to be inserted into the interior of the through groove.

[0015] As an optional solution of the combined optical fiber head injection molding machine of the present invention, wherein: the upper end of the second mold is provided with a feed hole and a vent hole, and the feed hole and the vent hole are connected to the mold cavity;

[0016] The sealing column is connected to the second mold via a second spring;

[0017] A second groove is further provided inside the second mold, a limiting plate is installed on the outer surface of the sealing column, the limiting plate is slidably connected to the inside of the first cavity, a first groove is provided inside the sealing column, one end of the first groove passes through one side of the limiting plate, the first groove is used to communicate with the second groove, and the other end of the first groove is connected to the inside of the piston groove;

[0018] A transmission groove and a third groove are also provided inside the shaft column. The transmission groove is connected to the third groove. The axis of the transmission groove is aligned with the axis of the feed hole. A spray hole valve is installed at one end of the third groove, and the spray hole valve is used to spray the injection liquid onto the groove plate.

[0019] As an optional solution of the combined optical fiber head injection molding machine of the present invention, wherein: a fifth groove is further provided inside the piston plate, and a fourth groove is further provided inside the shaft column, and the fourth groove is used to communicate with the fifth groove;

[0020] A cylindrical cavity is also provided inside the piston plate, a push column is slidably connected inside the cylindrical cavity, and the push column is connected to the piston plate via a fourth spring.

[0021] As an optional solution of the combined optical fiber head injection molding machine described in the present invention, one end of the sixth groove is connected to the interior of the cylindrical cavity, and the air in the cylindrical cavity is used to flow to the sixth groove.

[0022] As an optional solution of the combined optical fiber head injection molding machine of the present invention, wherein: a short shaft is installed inside the extension bar, and one end of the short shaft is connected to one end of the ironing bar;

[0023] The outer surface of the short shaft is also sleeved with a circular ring, and a fifth spring is installed between the circular ring and the short shaft;

[0024] A rack is also installed inside the piston plate, and a gear is installed on the outer surface of the ring, and the rack is meshed with the gear.

[0025] As an optional solution of the combined optical fiber head injection molding machine described in the present invention, a material storage cavity is installed at one end of the second mold, a push plate is slidably connected to the interior of the material storage cavity, the push plate and the material storage cavity are connected by a first spring, a plurality of protective rings are stored in the interior of the material storage cavity, and the protective rings are used to slide to the first cavity.

[0026] The present invention has the following beneficial effects:

[0027] 1. The combined fiber optic head injection molding machine has a piston plate that contacts the inner wall of the protective ring. The piston plate slides out of the shaft column at an equal distance, so that the piston plate pushes the protective ring to move, so that the axis of the protective ring is aligned with the axis of the shaft column, thereby preventing the protective ring from being exposed outside the fiber optic head after the injection molding is completed, thereby improving the injection molding effect.

[0028] 2. The raw materials used in the combined fiber optic head injection molding machine are all biodegradable polymers. The groove plate is filled with injection liquid. When the injection liquid inside the groove plate is cooled, an injection strip is formed. One end of the injection strip is adhered to the inside of the protective ring, and the other end of the injection strip is adhered to the outer surface of the shaft column. The protective ring is supported by several injection strips to reduce the downward sliding of the protective ring, thereby further improving the injection molding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0030] Figure 2 It is a schematic structural diagram of the first mold of the present invention.

[0031] Figure 3 It is a schematic structural diagram of the supporting device of the present invention.

[0032] Figure 4 It is a partial cross-sectional view of the shaft column of the present invention.

[0033] Figure 5 It is a schematic structural diagram of the ironing device of the present invention.

[0034] In the figure: 1, first mold; 2, second mold; 3, mold cavity; 4, adjustment device; 5, support device; 7, first cavity; 8, ironing device; 9, baffle; 10, storage cavity; 11, first spring; 12, push plate; 13, protective ring; 14, feed hole; 15, exhaust hole; 16, transmission slot; 17, second spring; 41, shaft column; 42, sealing column; 43, limit plate; 44, first slot; 45, second slot ; 51. piston groove; 52. piston plate; 53. third spring; 54. groove plate; 55. friction plate; 56. through groove; 57. spray hole valve; 58. third groove; 59. fourth groove; 60. fifth groove; 61. cylindrical cavity; 62. fourth spring; 63. push column; 64. sixth groove; 81. extension strip; 82. ironing strip; 83. rack; 84. gear; 85. ring; 86. fifth spring; 87. short shaft. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Example 1

[0037] See also Figure 1-3 A combined optical fiber head injection molding machine includes a first mold 1 and a second mold 2. The second mold 2 and the first mold 1 are both provided with a mold cavity 3. The first mold 1 is also provided with a first cavity 7. A baffle 9 is installed between the first cavity 7 and the mold cavity 3. An adjusting device 4 is slidably connected to the first cavity 7. The adjusting device 4 includes a sealing column 42 slidably connected to the first cavity 7. A shaft column 41 is installed at the upper end of the sealing column 42. The shaft column 41 penetrates the baffle 9 and extends to the inside of the mold cavity 3.

[0038] The outer surface of the shaft column 41 is also sleeved with a protective ring 13;

[0039] A plurality of supporting devices 5 are installed on the outer surface of the shaft column 41, and the supporting devices 5 are used to support the protective ring 13. The supporting devices 5 include a piston groove 51 arranged inside the shaft column 41, and the piston groove 51 is connected to the shaft column 41 through a third spring 53. A piston plate 52 is slidably connected inside the piston groove 51, and the piston plate 52 is used to abut against the inner wall of the protective ring 13.

[0040] according to Figure 1 As shown, when injection molding is required, the first mold 1 is buckled at one end of the second mold 2 so that the first mold 1 fits the second mold 2. Figure 2 As shown, the protective ring 13 is sleeved on the outer surface of the shaft column 41, and then the sealing column 42 and the shaft column 41 are slid upward, so that the sealing column 42 drives the protective ring 13 to pass through the baffle 9 and enter the interior of the mold cavity 3, and the upper end surface of the sealing column 42 is flush with the upper end surface of the baffle 9, so that there is no gap at the baffle 9, and then the mold cavity 3 is filled with injection liquid, so that the protective ring 13 is wrapped by the injection liquid and the interior of the mold cavity 3 is filled, so as to complete the injection molding;

[0041] Further, according to Figure 3 As shown, in order to align the axis of the protective ring 13 with the axis of the shaft column 41, when the sealing column 42 drives the protective ring 13 to slide into the mold cavity 3, a plurality of piston plates 52 on the outer surface of the sliding shaft column 41 are pressed against the inner wall of the protective ring 13, and the plurality of piston plates 52 slide out of the shaft column 41 by the same distance. In this way, the plurality of piston plates 52 push the protective ring 13 to move, so that the axis of the protective ring 13 is aligned with the axis of the shaft column 41, thereby preventing the protective ring 13 from being exposed outside the optical fiber head after the injection molding is completed, thereby improving the injection molding effect.

[0042] Example 2

[0043] This embodiment is an improvement made on the basis of embodiment 1. For details, please refer to Figure 1-3 One end of the piston plate 52 is slidably connected to a friction plate 55 , and the friction plate 55 is used to abut against the inner wall of the protective ring 13 .

[0044] Furthermore, since the protective ring 13 contacts the upper end of the sealing column 42, the lower end of the protective ring 13 will still be exposed after the injection molding is completed. Therefore, the protective ring 13 needs to be lifted up during the injection molding. Figure 3As shown, when the piston plate 52 slides, the piston plate 52 drives the friction plate 55 to contact the inner wall of the protection ring 13, so that the protection ring 13 is first squeezed and moved by a plurality of friction plates 55, so that the axis of the protection ring 13 is aligned with the axis of the shaft column 41, and then the friction plate 55 is slid upward to drive the protection ring 13 to slide upward, so that the lower end of the protection ring 13 is kept at a distance from the upper end of the sealing column 42, so that the injection liquid can wrap the lower end of the protection ring 13, thereby further improving the injection molding effect;

[0045] It should be noted that since the piston plate 52 slides from the inside of the shaft column 41, the interior of the mold cavity 3 cannot be completely injected. When the friction plate 55 drives the protective ring 13 to slide and lift upward, the injection liquid is filled into the mold cavity 3 so that the injection liquid is located at the bottom of the shaft column 41. The injection liquid at the bottom of the shaft column 41 is then cooled and hardened, thereby resetting the piston plate 52 so that the piston plate 52 no longer supports the protective ring 13. At this time, the protective ring 13 is supported by the hardened injection liquid, and subsequent overall injection molding is performed.

[0046] Example 3

[0047] This embodiment is an improvement made on the basis of embodiment 2. For details, please refer to Figure 1-4 A groove plate 54 is installed on the upper end of the piston plate 52, one end of the groove plate 54 is attached to the inner wall of the protective ring 13, and the other end of the groove plate 54 is attached to the outer surface of the shaft column 41;

[0048] The interior of the groove plate 54 is used to store liquid, and the lower end of the groove plate 54 is connected to the upper end of the friction plate 55 .

[0049] according to Figure 4 As shown, a groove plate 54 is installed at the upper end of the friction plate 55. When the piston plate 52 drives the friction plate 55 to contact the inner wall of the protective ring 13, one end of the groove plate 54 contacts the inner wall of the protective ring 13, and the other end of the groove plate 54 contacts the outer surface of the shaft column 41. In this way, by filling the interior of the groove plate 54 with injection liquid, an injection molding strip is formed when the injection molding liquid inside the groove plate 54 is cooled. One end of the injection molding strip is adhered to the interior of the protective ring 13, and the other end of the injection molding strip is adhered to the outer surface of the shaft column 41. The protective ring 13 is supported by a plurality of injection molding strips to reduce the downward sliding of the protective ring 13, thereby further improving the injection molding quality.

[0050] Example 4

[0051] This embodiment is an improvement made on the basis of embodiment 3. For details, please refer to Figure 1-4 A sixth groove 64 is provided at the lower end of the piston plate 52, and the sixth groove 64 is used to spray air onto the injection liquid.

[0052] according to Figure 4 As shown, when part of the injection molding liquid is located at the bottom of the shaft column 41 and the groove plate 54, cold air is sprayed to the bottom of the shaft column 41 and the groove plate 54 through the sixth slot 64 to solidify the injection molding liquid, which facilitates the solidification of the injection molding liquid at the bottom of the shaft column 41 and the groove plate 54 to support the protective ring 13;

[0053] It should be noted that the amount of injection plastic at the bottom of the shaft column 41 and the groove plate 54 is relatively small, so the injection plastic at the bottom of the shaft column 41 and the groove plate 54 can be quickly cooled through the sixth groove 64, thereby improving the injection molding efficiency, and the protective ring 13 can be located inside the injection molded part to ensure the injection molding quality.

[0054] Example 5

[0055] This embodiment is an improvement made on the basis of embodiment 4. For details, please refer to Figure 1-5 , an ironing device 8 is installed at the upper end of the groove plate 54, and the ironing device 8 is used to puncture the protective ring 13;

[0056] The ironing device 8 comprises a protruding bar 81 mounted on the upper end of the groove plate 54, one end of the protruding bar 81 is rotatably connected to an ironing bar 82, and the ironing bar 82 is used to abut against the protective ring 13;

[0057] A through slot 56 is further disposed on the outer surface of the shaft column 41 , and the protruding bar 81 and the rack bar 83 are used to be inserted into the through slot 56 .

[0058] Further, according to Figure 4 and Figure 5 As shown, an extension strip 81 and an ironing strip 82 are installed at the upper end of the groove plate 54. When one end of the groove plate 54 abuts against the inner wall of the protective ring 13, the ironing strip 82 is energized, and the ironing strip 82 is rotated to abut against the protective ring 13. The ironing strip 82 is used to iron holes on the protective ring 13, so that the injection molding liquid at the groove plate 54 flows to the ironed holes, and the injection molding liquid flows to the outer surface and inner wall of the protective ring 13, so as to increase the contact area between the injection molding column and the protective ring 13, so that the injection molding column can better support the protective ring 13.

[0059] Example 6

[0060] This embodiment is an improvement made on the basis of embodiment 5. For details, please refer to Figure 1-5 The upper end of the second mold 2 is provided with a feed hole 14 and a vent hole 15, and the feed hole 14 and the vent hole 15 are connected to the mold cavity 3;

[0061] The sealing column 42 is connected to the second mold 2 via a second spring 17;

[0062] The second mold 2 is further provided with a second groove 45, the outer surface of the sealing column 42 is provided with a limit plate 43, the limit plate 43 is slidably connected to the inside of the first cavity 7, the sealing column 42 is provided with a first groove 44, one end of the first groove 44 passes through one side of the limit plate 43, the first groove 44 is used to communicate with the second groove 45, and the other end of the first groove 44 is connected to the inside of the piston groove 51;

[0063] The shaft column 41 is further provided with a transmission groove 16 and a third groove 58, the transmission groove 16 is connected with the third groove 58, the axis of the transmission groove 16 is aligned with the axis of the feed hole 14, and a spray hole valve 57 is installed at one end of the third groove 58, and the spray hole valve 57 is used to spray the injection liquid to the groove plate 54;

[0064] A fifth groove 60 is further provided inside the piston plate 52, and a fourth groove 59 is further provided inside the shaft column 41. The fourth groove 59 is used to communicate with the fifth groove 60;

[0065] The piston plate 52 is further provided with a cylindrical cavity 61, and a push post 63 is slidably connected to the inside of the cylindrical cavity 61. The push post 63 is connected to the piston plate 52 via a fourth spring 62;

[0066] One end of the sixth groove 64 is connected to the interior of the cylindrical cavity 61, and the air in the cylindrical cavity 61 is used to flow to the sixth groove 64;

[0067] A short shaft 87 is installed inside the extension bar 81, and one end of the short shaft 87 is connected to one end of the ironing bar 82;

[0068] The outer surface of the short shaft 87 is also sleeved with a ring 85, and a fifth spring 86 is installed between the ring 85 and the short shaft 87;

[0069] A rack 83 is also installed inside the piston plate 52, and a gear 84 is installed on the outer surface of the ring 85, and the rack 83 is meshed with the gear 84;

[0070] A material storage cavity 10 is installed at one end of the second mold 2, and a push plate 12 is slidably connected inside the material storage cavity 10. The push plate 12 and the material storage cavity 10 are connected via a first spring 11. A plurality of protective rings 13 are stored inside the material storage cavity 10, and the protective rings 13 are used to slide to the first cavity 7.

[0071] according to Figure 2As shown, the first spring 11 pushes the push plate 12 to slide toward one end, and the push plate 12 pushes the protective ring 13 to slide toward one end. At this time, the protective ring 13 contacts the inside of the first cavity 7, and then transmits air to the lower end of the sealing column 42. The air pushes the sealing column 42 to slide upward, and the sealing column 42 drives the shaft column 41 to insert into the protective ring 13, so that the sealing column 42 pushes the protective ring 13 into the mold cavity 3. When the limit plate 43 contacts the baffle plate 9, the air at the lower end of the sealing column 42 is connected to the second groove 45, and the other end of the second groove 45 is connected to the first groove 44, so that the air flows through the second groove 45 to transmit the air to the first groove 44. Figure 3 As shown, air is transmitted to the piston groove 51 through the first groove 44, thereby pushing the piston plate 52 to slide toward one end, so that the piston plate 52 drives the friction plate 55 to contact the protective ring 13, and then according to Figure 4 As shown, when the piston plate 52 slides to the limit position, the air at the piston groove 51 will flow to the fourth groove 59, the fourth groove 59 transmits the air to the fifth groove 60, and the fifth groove 60 transmits the air to the cylindrical cavity 61, thereby pushing the push column 63 and the groove plate 54 to slide upward, and the groove plate 54 drives the friction plate 55 to slide upward, so that the friction plate 55 drives the protective ring 13 to lift upward, so that the lower end of the protective ring 13 is separated from the upper end of the sealing column 42, and then passes through the feed hole 14 to the transmission groove 16. The injection molding liquid is transmitted, and the transmission groove 16 squeezes and opens the spray hole valve 57, so that the injection molding liquid at the transmission groove 16 is sprayed to the groove plate 54, so as to fill the groove plate 54 and form an injection molding column at the groove plate 54. When the groove plate 54 is filled, the injection molding liquid at the groove plate 54 overflows and flows into the bottom end of the mold cavity 3, so that the injection molding liquid is retained at the bottom end of the mold cavity 3 and the groove plate 54. When the groove plate 54 is cooled to form an injection molding strip, the groove plate 54 is slid downward to demould the groove plate 54 and the injection molding strip;

[0072] When the groove plate 54 slides upward, according to Figure 5 As shown, the gear 84 at the extended strip 81 meshes with the rack 83, so that the gear 84 rotates, and the gear 84 drives the fifth spring 86 to rotate. When the ironing strip 82 hits the inner wall of the protective ring 13, it takes time for the ironing strip 82 to pierce the protective ring 13, so the fifth spring 86 stores energy, so that the fifth spring 86 drives the short shaft 87 to rotate, and the short shaft 87 drives the ironing strip 82 to hit the protective ring 13;

[0073] according to Figure 4 As shown, a through groove 56 is provided on the outer surface of the shaft column 41. When the piston plate 52 and the friction plate 55 are reset, one end of the friction plate 55 is flush with the outer surface of the shaft column 41 without any gap, and the extension strip 81 and the ironing strip 82 are inserted into the fifth spring 86 without any gap.

[0074] The injection liquid in the third tank 58 is always liquid due to heating.

[0075] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0076] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A combined optical fiber head injection molding machine, comprising a first mold (1) and a second mold (2), wherein the second mold (2) and the first mold (1) are both provided with a mold cavity (3), characterized in that: A first cavity (7) is further provided inside the first mold (1); a baffle (9) is installed between the first cavity (7) and the mold cavity (3); an adjusting device (4) is slidably connected inside the first cavity (7); the adjusting device (4) comprises a sealing column (42) slidably connected inside the first cavity (7); a shaft column (41) is installed at the upper end of the sealing column (42); the shaft column (41) passes through the baffle (9) and extends to the inside of the mold cavity (3); The outer surface of the shaft column (41) is also sleeved with a protective ring (13); A plurality of supporting devices (5) are installed on the outer surface of the shaft column (41), and the supporting devices (5) are used to support the protective ring (13). The supporting devices (5) include a piston groove (51) arranged inside the shaft column (41), and the piston groove (51) is connected to the shaft column (41) via a third spring (53). A piston plate (52) is slidably connected inside the piston groove (51), and the piston plate (52) is used to abut against the inner wall of the protective ring (13).

2. The combined optical fiber head injection molding machine according to claim 1, characterized in that: One end of the piston plate (52) is slidably connected to a friction plate (55), and the friction plate (55) is used to abut against the inner wall of the protective ring (13).

3. The combined optical fiber head injection molding machine according to claim 2, characterized in that: A groove plate (54) is mounted on the upper end of the piston plate (52), one end of the groove plate (54) is in contact with the inner wall of the protective ring (13), and the other end of the groove plate (54) is in contact with the outer surface of the shaft column (41); The interior of the groove plate (54) is used to store liquid, and the lower end of the groove plate (54) is connected to the upper end of the friction plate (55).

4. The combined optical fiber head injection molding machine according to claim 3, characterized in that: A sixth groove (64) is provided at the lower end of the piston plate (52), and the sixth groove (64) is used to spray air onto the injection liquid.

5. The combined optical fiber head injection molding machine according to claim 4, characterized in that: An ironing device (8) is installed at the upper end of the groove plate (54), and the ironing device (8) is used to puncture the protective ring (13); The ironing device (8) comprises a protruding strip (81) mounted on the upper end of the groove plate (54), one end of the protruding strip (81) being rotatably connected to an ironing strip (82), the ironing strip (82) being used to abut against the protective ring (13); The outer surface of the shaft column (41) is also provided with a through groove (56), and the protruding bar (81) and the rack (83) are used to be inserted into the through groove (56).

6. The combined optical fiber head injection molding machine according to claim 2, characterized in that: The upper end of the second mold (2) is provided with a material inlet hole (14) and a gas outlet hole (15), and the material inlet hole (14) and the gas outlet hole (15) are connected to the mold cavity (3); The sealing column (42) is connected to the second mold (2) via a second spring (17); A second groove (45) is further provided inside the second mold (2); a limit plate (43) is installed on the outer surface of the sealing column (42); the limit plate (43) is slidably connected to the inside of the first cavity (7); a first groove (44) is provided inside the sealing column (42); one end of the first groove (44) passes through one side of the limit plate (43); the first groove (44) is used to communicate with the second groove (45); and the other end of the first groove (44) is connected to the inside of the piston groove (51); A transmission groove (16) and a third groove (58) are also provided inside the shaft column (41); the transmission groove (16) is connected to the third groove (58); the axis of the transmission groove (16) is aligned with the axis of the feed hole (14); a spray hole valve (57) is installed at one end of the third groove (58); the spray hole valve (57) is used to spray the injection liquid onto the groove plate (54).

7. The combined optical fiber head injection molding machine according to claim 5, characterized in that: A fifth groove (60) is further provided inside the piston plate (52), and a fourth groove (59) is further provided inside the shaft column (41), wherein the fourth groove (59) is used to communicate with the fifth groove (60); A cylindrical cavity (61) is further provided inside the piston plate (52), a push column (63) is slidably connected inside the cylindrical cavity (61), and the push column (63) is connected to the piston plate (52) via a fourth spring (62).

8. The combined optical fiber head injection molding machine according to claim 7, characterized in that: One end of the sixth groove (64) is in communication with the interior of the cylindrical cavity (61), and the air in the cylindrical cavity (61) is used to flow to the sixth groove (64).

9. The combined optical fiber head injection molding machine according to claim 8, characterized in that: A short shaft (87) is installed inside the extending strip (81), and one end of the short shaft (87) is connected to one end of the ironing strip (82); The outer surface of the short shaft (87) is also sleeved with a circular ring (85), and a fifth spring (86) is installed between the circular ring (85) and the short shaft (87); A rack (83) is also installed inside the piston plate (52), and a gear (84) is installed on the outer surface of the ring (85), and the rack (83) is meshed with the gear (84).

10. The combined optical fiber head injection molding machine according to claim 1, characterized in that: A material storage cavity (10) is installed at one end of the second mold (2), and a push plate (12) is slidably connected inside the material storage cavity (10). The push plate (12) and the material storage cavity (10) are connected via a first spring (11). A plurality of protective rings (13) are stored inside the material storage cavity (10), and the protective rings (13) are used to slide to the first cavity (7).

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