Injection molding mold for light shield body

Abstract

The utility model discloses an injection molding mold for a light shield body, which comprises a bottom plate, a support seat arranged at the top end of the bottom plate, a lower mold seat arranged at the top end of the support seat, a lower mold arranged at one end of the lower mold seat far away from the support seat, an upper mold arranged above the lower mold, a top plate fixed at the top end of the upper mold, and a connecting seat arranged at the central position of the top end of the top plate, a cooling plate is arranged in the supporting seat, one end of the cooling plate extends to the outside of the supporting seat, a snakelike cooling pipe is arranged in the cooling plate, one end of the snakelike cooling pipe extends to the outside of the cooling plate and is provided with a liquid injection port, and the other end of the snakelike cooling pipe extends to the outside of the cooling plate and is provided with a liquid outlet. According to the utility model, the light shield body can be cooled so as to improve the forming efficiency of the light shield body when the injection molding mold is used, the forming precision of the light shield body when the injection molding mold is used is guaranteed, and the phenomenon that the upper mold is separated from the top end of the lower mold is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to an injection molding mold for a light shielding cover body. Background Art

[0002] The sunshade is a device installed on the front end of a photographic lens, a digital camera, or a camcorder to block harmful light. It is also one of the most commonly used photographic accessories. When the sunshade is produced and processed, it is necessary to perform an injection molding process on the sunshade, and thus a corresponding injection molding mold is required.

[0003] Reference announcement number CN219153596U is an injection molding mold for a sunshade body, which includes an upper mold, a lower mold and an injection molding area, the injection molding area includes an upper molding area structure arranged below the upper mold and a lower molding area structure arranged above the lower mold, the upper molding area structure is divided into an upper mold upper piece molding groove and an upper mold lower piece molding groove, an upper feed channel structure is arranged on the periphery of the upper piece molding groove, a lower feed channel structure is arranged on the periphery of the lower piece molding groove, the lower molding area structure is divided into a lower mold upper piece molding groove and a lower mold lower piece molding groove, an upper exhaust air group is arranged at the bottom of the lower mold upper piece molding groove, and a lower mold lower piece molding groove is provided. A lower and upper exhaust air group is set on the upper part of the part molding groove. Since the injection molding cycle is increased by simultaneously pouring in sections inside and outside the mold, a middle exhaust duct is set in the lower mold core of the mold to avoid material shortage, gas burning and other phenomena on the surface of the product, thereby ensuring the superior appearance of the product, improving the quality of the product and the stability of the mold further improving the quality of the product. According to the above, although the injection molding mold can be well applied, it is usually not convenient to cool the finished light shielding cover workpiece, which makes it difficult for the injection molding mold to achieve the established expectations for the molding efficiency of the shielding cover, which often troubles people. Utility Model Content

[0004] The purpose of the utility model is to provide an injection molding mold for a light-shielding cover body, so as to solve the problem mentioned in the above background technology that although the injection molding mold can be well applied, it is usually inconvenient to cool the molded light-shielding cover body workpiece, making it difficult for the injection molding mold to achieve the expected molding efficiency of the light-shielding cover body.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an injection molding mold for a sunshade cover body, comprising a base plate, a support seat is provided at the top of the base plate, a lower mold seat is provided at the top of the support seat, a lower mold is provided at the end of the lower mold seat away from the support seat, an upper mold is provided above the lower mold, a top plate is fixed to the top of the upper mold, a connecting seat is provided at the center position of the top of the top plate, a cooling plate is provided inside the support seat, one end of the cooling plate extends to the outside of the support seat, a serpentine cooling pipe is provided inside the cooling plate, one end of the serpentine cooling pipe extends to the outside of the cooling plate and is provided with a liquid injection port, and the other end of the serpentine cooling pipe extends to the outside of the cooling plate and is provided with a liquid outlet.

[0006] Preferably, a first injection port with equal spacing is provided on the outer wall on one side of the lower mold base, and a second injection port with equal spacing is provided on the outer wall on one side of the upper mold. The first injection port and the second injection port are arranged so that the injection material can be injected into the interior of the lower mold cavity.

[0007] Preferably, lower mold cavities are provided on both sides of the top of the lower mold, and upper mold cores are inserted and installed inside the lower mold cavities. The top end of the upper mold core extends to the outside of the lower mold cavity and is fixedly connected to the bottom end of the upper mold. The lower mold cavity and the upper mold core are arranged so that the light shielding cover body can be injection molded.

[0008] Preferably, a first threaded hole is provided at the center of the upper mold surface, and a second threaded hole is provided at the center of the lower mold base surface. The first threaded hole and the second threaded hole are provided so as to facilitate the placement of the first locking bolt and the second locking bolt.

[0009] Preferably, pin holes are provided at the corner positions of the bottom of the upper mold, and a pin shaft is installed inside the pin hole. The bottom end of the pin shaft extends to the outside of the pin hole and is fixedly connected to the top of the lower mold. Through the setting of the pin shaft and the pin hole, the upper mold core can be accurately inserted into the lower mold cavity.

[0010] Preferably, a locking seat is installed on the surface of the lower mold base and the upper mold at the position of the second threaded hole and the first threaded hole, and a pull ring is provided on the surface of the locking seat. The locking seat is arranged so that the upper mold and the lower mold can be locked and placed.

[0011] Preferably, a first locking bolt is installed on the upper end of the locking seat surface, one end of the first locking bolt passes through the locking seat and is threadedly connected to the first threaded hole, and the locking seat is installed on the surface of the upper mold through the provision of the first locking bolt.

[0012] Preferably, a second locking bolt is installed at the lower end of the locking seat surface, one end of the second locking bolt passes through the locking seat and is threadedly connected to the second threaded hole, and the locking seat is installed on the surface of the lower mold through the provision of the second locking bolt.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the injection molding mold of the light shielding cover body can not only cool down the light shielding cover body to improve the molding efficiency of the light shielding cover body when the injection molding mold is used, but also ensure the molding accuracy of the light shielding cover body when the injection molding mold is used, and reduce the phenomenon of the upper mold being separated from the top of the lower mold;

[0014] (1) The coolant is injected into the interior of the serpentine cooling tube through the liquid injection port, so that the coolant circulates inside the serpentine cooling tube and is discharged through the liquid outlet. During this process, the coolant circulating inside the serpentine cooling tube releases a low-temperature medium and is transferred to the shading cover body that has been formed inside the lower mold cavity to cool the shading cover body, thereby improving the molding efficiency of the shading cover body when the injection molding mold is used;

[0015] (2) By setting a plurality of pins at the top of the lower mold and a plurality of pin holes at the bottom of the upper mold, when the upper mold moves down to the top of the lower mold, the pins will be inserted into the pin holes to limit the lifting range of the upper mold, so that the upper mold core can be accurately inserted into the lower mold cavity, thereby ensuring the molding accuracy of the light shielding cover body when the injection molding mold is used;

[0016] (3) By passing one end of the first locking bolt and the second locking bolt through the locking seat and screwing them into the first threaded hole and the second threaded hole respectively, the upper mold and the lower mold can be locked through the locking seat, thereby reducing the phenomenon of the upper mold detaching from the top of the lower mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the top view of the lower mold structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the upper mold structure of the utility model when viewed from above;

[0020] Figure 4 It is a schematic diagram of the cross-sectional structure of the cooling plate of the utility model from top view.

[0021] In the figure: 1. bottom plate; 2. support seat; 3. lower mold seat; 301. first injection port; 4. lower mold; 5. upper mold; 501. second injection port; 6. top plate; 7. connecting seat; 8. locking seat; 9. first locking bolt; 10. second locking bolt; 11. pull ring; 12. cooling plate; 13. liquid injection port; 14. liquid outlet; 15. lower mold cavity; 16. pin shaft; 17. second threaded hole; 18. upper mold core; 19. pin hole; 20. first threaded hole; 21. serpentine cooling pipe. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 The utility model provides an embodiment: an injection molding mold for a shade body, comprising a bottom plate 1, a support seat 2 is provided at the top of the bottom plate 1, a lower mold seat 3 is provided at the top of the support seat 2, a first injection molding port 301 with equal spacing is provided on the outer wall of one side of the lower mold seat 3, and a second injection molding port 501 with equal spacing is provided on the outer wall of one side of the upper mold 5;

[0024] When in use, the first injection port 301 and the second injection port 501 are arranged so as to inject the injection material into the interior of the lower mold cavity 15;

[0025] A lower mold 4 is provided at one end of the lower mold base 3 away from the support base 2. Lower mold cavities 15 are provided on both sides of the top of the lower mold 4. Upper mold cores 18 are inserted and installed inside the lower mold cavities 15. The top end of the upper mold core 18 extends to the outside of the lower mold cavity 15 and is fixedly connected to the bottom end of the upper mold 5.

[0026] When in use, the lower mold cavity 15 and the upper mold core 18 are arranged so as to perform injection molding on the light shielding cover body;

[0027] An upper mold 5 is disposed above the lower mold 4. A first threaded hole 20 is disposed at the center of the surface of the upper mold 5, and a second threaded hole 17 is disposed at the center of the surface of the lower mold base 3.

[0028] When in use, the first threaded hole 20 and the second threaded hole 17 are provided so as to place the first locking bolt 9 and the second locking bolt 10;

[0029] A locking seat 8 is installed on the surface of the lower die seat 3 and the upper die 5 at the position of the second threaded hole 17 and the first threaded hole 20, and a pull ring 11 is provided on the surface of the locking seat 8;

[0030] When in use, the locking seat 8 is provided so as to lock and place the upper mold 5 and the lower mold 4;

[0031] A first locking bolt 9 is installed on the upper end of the surface of the locking seat 8, and one end of the first locking bolt 9 passes through the locking seat 8 and is threadedly connected to the first threaded hole 20;

[0032] When in use, the first locking bolt 9 is arranged so as to install the locking seat 8 on the surface of the upper mold 5;

[0033] A second locking bolt 10 is installed at the lower end of the surface of the locking seat 8, and one end of the second locking bolt 10 passes through the locking seat 8 and is threadedly connected to the second threaded hole 17;

[0034] When in use, the second locking bolt 10 is arranged so as to install the locking seat 8 on the surface of the lower mold 4;

[0035] The corners of the bottom of the upper mold 5 are all provided with pin holes 19, and the pin shaft 16 is inserted and installed inside the pin hole 19. The bottom end of the pin shaft 16 extends to the outside of the pin hole 19 and is fixedly connected to the top of the lower mold 4;

[0036] When in use, the upper mold core 18 is precisely inserted into the lower mold cavity 15 through the arrangement of the pin shaft 16 and the pin hole 19;

[0037] A top plate 6 is fixed to the top of the upper mold 5, a connecting seat 7 is provided at the center position of the top of the top plate 6, a cooling plate 12 is provided inside the support seat 2, one end of the cooling plate 12 extends to the outside of the support seat 2, a serpentine cooling pipe 21 is provided inside the cooling plate 12, one end of the serpentine cooling pipe 21 extends to the outside of the cooling plate 12 and is provided with a liquid injection port 13, and the other end of the serpentine cooling pipe 21 extends to the outside of the cooling plate 12 and is provided with a liquid outlet 14.

[0038] When the embodiment of the present application is in use, firstly, a plurality of pins 16 are arranged at the top of the lower mold 4, and a plurality of pin holes 19 are arranged at the bottom of the upper mold 5. When the upper mold 5 moves down to the top of the lower mold 4, the pins 16 will be inserted into the pin holes 19 to limit the lifting range of the upper mold 5, thereby ensuring that the upper mold core 18 can be accurately inserted into the lower mold cavity 15. Then, the first injection port 301 and the second injection port 501 are arranged to inject the injection molding material into the lower mold cavity 15 outside the upper mold core 18, so as to injection mold the light shielding cover body, and then one end of the first locking bolt 9 and the second locking bolt 10 are passed through the locking seat 8 and screwed into the first threaded hole respectively. 20 and the second threaded hole 17, the locking seat 8 can be used to lock the upper mold 5 and the lower mold 4 to reduce the phenomenon of the upper mold 5 being separated from the top of the lower mold 4, and finally the coolant is injected into the interior of the serpentine cooling tube 21 through the injection port 13, so that the coolant is circulated inside the serpentine cooling tube 21 and then discharged through the liquid outlet 14. In this process, because the support seat 2, the lower mold seat 3 and the lower mold 4 are all made of metal materials with high thermal conductivity, the low-temperature medium released by the circulating coolant in the serpentine cooling tube 21 will be transmitted to the light-shielding cover body that has been formed on the inner side of the lower mold cavity 15, so as to quickly cool the light-shielding cover body, thereby completing the use of the injection molding mold.

Claims

1. An injection molding mold for a sunshade body, characterized in that: The invention comprises a bottom plate (1), a support seat (2) is provided at the top of the bottom plate (1), a lower mold seat (3) is provided at the top of the support seat (2), a lower mold (4) is provided at one end of the lower mold seat (3) away from the support seat (2), an upper mold (5) is provided above the lower mold (4), a top plate (6) is fixed at the top of the upper mold (5), a connecting seat (7) is provided at the center position of the top of the top plate (6), a cooling plate (12) is provided inside the support seat (2), one end of the cooling plate (12) extends to the outside of the support seat (2), a serpentine cooling pipe (21) is provided inside the cooling plate (12), one end of the serpentine cooling pipe (21) extends to the outside of the cooling plate (12) and is provided with a liquid injection port (13), and the other end of the serpentine cooling pipe (21) extends to the outside of the cooling plate (12) and is provided with a liquid outlet (14).

2. The injection molding mold for a sunshade body according to claim 1, characterized in that: An outer wall on one side of the lower mold base (3) is provided with first injection ports (301) at equal intervals, and an outer wall on one side of the upper mold (5) is provided with second injection ports (501) at equal intervals.

3. The injection molding mold for a sunshade body according to claim 1, characterized in that: Lower mold cavities (15) are provided on both sides of the top of the lower mold (4), and upper mold cores (18) are inserted and installed inside the lower mold cavities (15). The top end of the upper mold core (18) extends to the outside of the lower mold cavity (15) and is fixedly connected to the bottom end of the upper mold (5).

4. The injection molding mold for a sunshade body according to claim 1, characterized in that: A first threaded hole (20) is provided at the center of the surface of the upper mold (5), and a second threaded hole (17) is provided at the center of the surface of the lower mold base (3).

5. The injection molding mold for a sunshade body according to claim 1, characterized in that: The upper mold (5) is provided with a pin hole (19) at the corner position of the bottom, and a pin shaft (16) is inserted and installed inside the pin hole (19). The bottom end of the pin shaft (16) extends to the outside of the pin hole (19) and is fixedly connected to the top end of the lower mold (4).

6. The injection molding mold for a sunshade body according to claim 4, characterized in that: A locking seat (8) is installed on the surface of the lower mold base (3) and the upper mold (5) at the position of the second threaded hole (17) and the first threaded hole (20), and a pull ring (11) is provided on the surface of the locking seat (8).

7. The injection molding mold for a sunshade body according to claim 6, characterized in that: A first locking bolt (9) is installed on the upper end of the surface of the locking seat (8), and one end of the first locking bolt (9) passes through the locking seat (8) and is threadedly connected to the first threaded hole (20).

8. The injection molding mold for a sunshade body according to claim 6, characterized in that: A second locking bolt (10) is installed at the lower end of the surface of the locking seat (8), and one end of the second locking bolt (10) passes through the locking seat (8) and is threadedly connected to the second threaded hole (17).

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