Anti-rotation structure of automobile lamp injection mold

Abstract

The utility model discloses an anti-rotation structure of an automobile lamp injection mold. The anti-rotation structure comprises a mold sleeve, a mold core and a limiting part for preventing the mold core from being separated from the mold sleeve, the limiting part comprises limiting grooves formed in the two sides of the die sleeve correspondingly, limiting blocks fixedly connected with the two sides of the die core correspondingly, a connecting groove formed in the top in one limiting groove, an extrusion block fixedly connected with the top of one limiting block, and a positioning opening formed in one side of the extrusion block. By arranging the die sleeve, the die core and the limiting component, the anti-rotation structure solves the problem that when an existing anti-rotation structure is used, although the die core can be inserted into the die sleeve to prevent the die core from rotating, the die core can be limited by using the locking plate, and the die core cannot be easily separated from the die sleeve, so that the die core cannot be easily separated from the die sleeve, and the die core cannot be easily separated from the die sleeve. However, the problems that the limiting effect on the mold core is poor, the mold core is prone to being separated from the mold sleeve, normal use of the mold core is affected, and therefore practicability is reduced are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to an anti-rotation structure for an automobile headlamp injection mold. Background Technique

[0002] Automobile headlamps are tools for road lighting when vehicles are driving at night and also tools for giving various vehicle driving signal prompts. Headlamps are generally divided into headlamps, tail lamps, turn signals, etc. Molds are various dies and tools used in industrial production to obtain required products by methods such as injection molding, blow molding, extrusion, die casting, or forging, smelting, stamping, etc. Injection molds are required for the production of automobile headlamps.

[0003] The existing patent CN219600230U discloses an anti-rotation structure for an automobile headlamp injection mold, including a mold sleeve. A mold core is arranged inside the mold sleeve. A limiting groove is formed on the bottom wall surface of the mold sleeve. The limiting groove is in a trapezoidal shape with a narrower width closer to the top. A limiting block slidably connected to the limiting groove is fixedly installed on the side wall of the mold core. In the utility model, the mold core is placed into the inside of the mold sleeve through the bottom of the mold sleeve, and the limiting block is stuck inside the limiting groove. The limiting groove restricts the side wall of the limiting block to fix the position of the mold core. Both the limiting groove and the limiting block are in a trapezoidal shape. So when the limiting block extends into the inside of the limiting groove, the limiting block continuously moves towards the inside of the limiting groove, enabling the inner side wall of the limiting groove to clamp the side wall of the limiting block, avoiding the shaking of the mold core and the occurrence of the loosening of the mold core.

[0004] Based on the retrieval of the above patent and the combination with the anti-rotation structures in the prior art, it is found that when the above anti-rotation structure is in use, although the mold core can be inserted into the mold sleeve to prevent the mold core from rotating, and the locking plate can be used to restrict the mold core, its limiting effect on the mold core is poor, the mold core is prone to detachment from the mold sleeve, affecting the normal use of the mold core, thus resulting in a reduction in practicability. Content of the Utility Model

[0005] The purpose of the utility model is to provide an anti-rotation structure for an automobile headlamp injection mold to solve the problem that in the prior art proposed in the above background technique, although the mold core can be inserted into the mold sleeve to prevent the mold core from rotating, and the locking plate can be used to restrict the mold core, its limiting effect on the mold core is poor, the mold core is prone to detachment from the mold sleeve, affecting the normal use of the mold core, thus resulting in a reduction in practicability.

[0006] To achieve the above object, the present utility model provides the following technical solution: An anti-rotation structure for an injection mold of an automotive headlight, including a mold sleeve, a mold core, and a limiting component for preventing the mold core from detaching from the mold sleeve. The limiting component includes limiting grooves respectively opened on both sides of the mold sleeve, limiting blocks respectively fixedly connected to both sides of the mold core, a connecting groove opened at the top of one of the limiting grooves, a pressing block fixedly connected to the top of one of the limiting blocks, a positioning port opened on one side of the pressing block, an arc-shaped block arranged in the connecting groove, a first spring fixedly connected to one side of the arc-shaped block, and a locking component for improving the fixing effect on the mold core. The arc-shaped block is inserted into the positioning port, the top of the pressing block is inclined, and the limiting block is inserted into the limiting groove.

[0007] Preferably, the locking component includes a limiting groove opened at the bottom of the other limiting groove, a limiting block fixedly connected to the top of the other limiting block, a groove opened on one side of the limiting block, a locking rod arranged in the groove, a second spring fixedly connected to one end of the locking rod, a fixed ball fixedly connected to the other end of the locking rod, and a hemispherical groove opened on one side of the limiting groove. The locking rod is slidably connected to the groove.

[0008] Preferably, a through port is opened on one side of the connecting groove. A sliding rod is fixedly connected to one side of the arc-shaped block. One end of the sliding rod is fixedly connected to a connecting plate. An arc-shaped rod is fixedly connected to one side of the connecting plate.

[0009] Preferably, a top-out groove is opened at the top of the limiting groove. A top rod is slidably connected in the top-out groove. A third spring is fixedly connected to the top of the top rod. A top plate is fixedly connected to the bottom of the top rod.

[0010] Preferably, a rolling groove is opened on the arc-shaped block. Rolling beads are arranged in the rolling groove.

[0011] Preferably, guiding grooves are respectively opened on both sides of the through port. Guiding plates are respectively fixedly connected to both sides of the sliding rod. The guiding plates are slidably connected to the guiding grooves.

[0012] Preferably, the shape of the locking rod is T-shaped, and the shape of the groove is T-shaped.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] 1. By setting the mold sleeve, the mold core, and the limiting component, the limiting block can be inserted into the limiting groove to prevent the mold core from rotating. The pressing block can be inserted into the connecting groove, and the pressing block can squeeze the arc-shaped block to make it move, thereby deforming the first spring. The first spring can drive the arc-shaped block to reset and insert it into the positioning port, so as to quickly connect and fix the mold core and the mold sleeve, prevent the mold core from detaching from the mold sleeve, and at the same time can quickly disassemble and replace the mold core, thus greatly improving the practicability and efficiency of the device;

[0015] 2. By providing a locking component, the limiting block can be inserted into the limiting groove. The limiting groove can squeeze the fixing ball, causing the fixing ball to drive the locking rod to move. The locking rod can deform the second spring, and the reset of the second spring can drive the fixing ball to snap into the hemispherical groove, which can further improve the fixing effect on the mold core, and further improve the connection stability between the mold core and the mold sleeve, prevent the mold core from detaching from the mold sleeve, and further improve the practicality. Brief Description of the Drawings

[0016] Figure 1 Is a three-dimensional structural schematic diagram provided by the present utility model;

[0017] Figure 2 Is a left view provided by the present utility model;

[0018] Figure 3 Is provided by the present utility model Figure 2 The three-dimensional sectional view at A-A in;

[0019] Figure 4 Is provided by the present utility model Figure 3 The enlarged view at B in;

[0020] Figure 5 Is provided by the present utility model Figure 3 The enlarged view at C in.

[0021] In the figure: 1. Mold sleeve; 11. Mold core; 21. Restriction groove; 22. Restriction block; 23. Connection groove; 24. Extrusion block; 25. Positioning port; 26. Arc block; 27. First spring; 31. Limiting groove; 32. Limiting block; 33. Groove; 34. Locking rod; 35. Second spring; 36. Fixing ball; 37. Hemispherical groove; 41. Through hole; 42. Slide bar; 43. Connecting plate; 44. Arc rod; 51. Ejection groove; 52. Ejection rod; 53. Third spring; 54. Top plate; 61. Rolling groove; 62. Rolling ball; 71. Guide groove; 72. Guide plate. Detailed Description of the Preferred Embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4, the present utility model provides a technical solution: an anti-rotation structure for an automotive headlight injection mold, including a mold sleeve 1, a mold core 11, and a limiting component for preventing the mold core 11 from detaching from the mold sleeve 1. The limiting component includes limiting grooves 21 respectively opened on both sides of the mold sleeve 1, limiting blocks 22 respectively fixedly connected to both sides of the mold core 11, a connecting groove 23 opened at the inner top of one of the limiting grooves 21, a pressing block 24 fixedly connected to the top of one of the limiting blocks 22, a positioning port 25 opened on one side of the pressing block 24, an arc-shaped block 26 disposed in the connecting groove 23, a first spring 27 fixedly connected to one side of the arc-shaped block 26, and a locking component for improving the fixing effect on the mold core 11. The arc-shaped block 26 is inserted into the positioning port 25, the top of the pressing block 24 is inclined, the limiting block 22 is inserted into the limiting groove 21, the other end of the first spring 27 is fixedly connected to the inner wall of the connecting groove 23. The limiting blocks 22 on both sides of the mold core 11 can be inserted into the limiting grooves 21, which can prevent rotation between the mold core 11 and the mold sleeve 1. The connecting groove 23 is opened at the inner bottom of the right limiting groove 21. When the pressing block 24 is inserted into the connecting groove 23, it can squeeze the arc-shaped block 26 to make it move. The arc-shaped block 26 can squeeze the first spring 27 to make it deform. When the arc-shaped block 26 contacts the positioning port 25, the first spring 27 can reset to drive the arc-shaped block 26 to insert into the positioning port 25, which can automatically and quickly fix the mold core 11, prevent the mold core 11 from detaching from the mold sleeve 1, and improve the connection stability between the mold core 11 and the mold sleeve 1. A through port 41 is opened on one side in the connecting groove 23. A sliding rod 42 is fixedly connected to one side of the arc-shaped block 26. One end of the sliding rod 42 is fixedly connected to a connecting plate 43. An arc-shaped rod 44 is fixedly connected to one side of the connecting plate 43. The first spring 27 is sleeved outside the sliding rod 42. The sliding rod 42 can prevent the first spring 27 from skewing. The arc-shaped rod 44 can facilitate driving the connecting plate 43 and the sliding rod 42 to move, and further can conveniently drive the arc-shaped block 26 to move to disengage from the positioning port 25, which is convenient for disassembling the mold core 11. A rolling groove 61 is opened on the arc-shaped block 26, and rolling beads 62 are provided in the rolling groove 61. The pressing block 24 can contact the rolling beads 62, making the rolling beads 62 roll, which can reduce the friction between the pressing block 24 and the arc-shaped block 26 and make the sliding of the arc-shaped block 26 smoother. Guide grooves 71 are respectively opened on both sides in the through port 41. Guide plates 72 are respectively fixedly connected to both sides of the sliding rod 42. The guide plates 72 are slidably connected to the guide grooves 71. The guide plates 72 can slide in the guide grooves 71, which can guide the sliding rod 42 and prevent the sliding rod 42 from rotating. Furthermore, it can protect the first spring 27 from being damaged.

[0024] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 5, the locking component includes a limit groove 31 opened at the inner bottom of the other limiting groove 21, a limit block 32 fixedly connected to the top of the other limiting block 22, a groove 33 opened on one side of the limit block 32, a lock rod 34 arranged in the groove 33, a second spring 35 fixedly connected to one end of the lock rod 34, a fixed ball 36 fixedly connected to the other end of the lock rod 34, and a hemispherical groove 37 opened on one side in the limit groove 31. The lock rod 34 is slidably connected to the groove 33. The limit groove 31 is opened at the inner top of the left limiting groove 21. Inserting the limit block 32 into the limit groove 31 can cause the fixed ball 36 to drive the lock rod 34 to slide in the groove 33. The lock rod 34 can compress the second spring 35 to deform it. When the fixed ball 36 contacts the hemispherical groove 37, the second spring 35 resets to drive the fixed ball 36 to insert into the hemispherical groove 37, which can fix the limit block 32 and improve the connection stability between the mold core 11 and the mold sleeve 1. The shape of the lock rod 34 is T-shaped, and the shape of the groove 33 is T-shaped, which can limit the moving distance of the lock rod 34 and prevent the lock rod 34 from disengaging from the lock groove. A top-out groove 51 is opened at the inner top of the limit groove 31. A top rod 52 is slidably connected in the top-out groove 51. A third spring 53 is fixedly connected to the top of the top rod 52. A top plate 54 is fixedly connected to the bottom of the top rod 52. The limit plate can push the top plate 54 to move it. The top plate 54 can drive the top rod 52 to compress the third spring 53 to deform it. When the arc-shaped block 26 disengages from the positioning opening 25, the third spring 53 can reset to push out the mold core 11, which can improve the disassembly efficiency of the mold core 11.

[0025] Working principle: During operation, the limiting block 22 at the top of the die core 11 is inserted into the limiting groove 21. The extrusion block 24 at the top of the right limiting block 22 can be inserted into the connecting groove 23. The extrusion block 24 can extrude the arc-shaped block 26 to move it horizontally. The movement of the arc-shaped block 26 can cause the first spring 27 to deform. When the arc-shaped block 26 contacts the positioning port 25, the first spring 27 resets, driving the arc-shaped block 26 to reset, so that the arc-shaped block 26 is snapped into the positioning port 25, and the die core 11 can be fixed. The limiting block 32 at the top of the left limiting block 22 can be inserted into the limiting groove 31. Under the extrusion of the limiting groove 31, the fixing ball 36 can drive the locking rod 34 to move. The movement of the locking rod 34 can cause the second spring 35 to deform. When the fixing ball 36 contacts the hemispherical groove 37, the reset of the second spring 35 can drive the fixing ball 36 to be inserted into the hemispherical groove 37, which can improve the fixing effect on the die core 11. At the same time, the limiting block 32 can contact the top plate 54 and push the top plate 54 to move. The movement of the top plate 54 can cause the ejector rod 52 to move. The movement of the ejector rod 52 can cause the third spring 53 to deform. When the die core 11 needs to be replaced later, pull the arc-shaped rod 44 to make the arc-shaped block 26 disengage from the positioning port 25. At this time, the reset of the third spring 53 can eject the die core 11, improving the replacement efficiency of the die core 11. The above is the working process of the entire device, and the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0026] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-rotation structure for an injection mold of an automotive headlight, comprising a mold sleeve (1), a mold core (11), and a limiting component for preventing the mold core (11) from detaching from the mold sleeve (1), characterized in that: The limiting component includes limiting grooves (21) respectively opened on both sides of the die sleeve (1), limiting blocks (22) respectively fixedly connected to both sides of the die core (11), a connecting groove (23) opened at the inner top of one of the limiting grooves (21), an extrusion block (24) fixedly connected to the top of one of the limiting blocks (22), a positioning port (25) opened on one side of the extrusion block (24), an arc-shaped block (26) arranged in the connecting groove (23), a first spring (27) fixedly connected to one side of the arc-shaped block (26), and a locking component for improving the fixing effect on the die core (11). The arc-shaped block (26) is inserted into the positioning port (25). The top of the extrusion block (24) is inclined. The limiting block (22) is inserted into the limiting groove (21).

2. The anti-rotation structure of an injection mold for an automotive headlight according to claim 1, wherein: The locking component includes a limiting groove (31) opened at the inner bottom of the other limiting groove (21), a limiting block (32) fixedly connected to the top of the other limiting block (22), a groove (33) opened on one side of the limiting block (32), a locking rod (34) arranged in the groove (33), a second spring (35) fixedly connected to one end of the locking rod (34), a fixing ball (36) fixedly connected to the other end of the locking rod (34), and a hemispherical groove (37) opened on one side in the limiting groove (31). The locking rod (34) is slidably connected to the groove (33).

3. The anti-rotation structure of an injection mold for automobile headlights according to claim 1, characterized in that: A through port (41) is opened on one side in the connecting groove (23). A sliding rod (42) is fixedly connected to one side of the arc-shaped block (26). A connecting plate (43) is fixedly connected to one end of the sliding rod (42). An arc-shaped rod (44) is fixedly connected to one side of the connecting plate (43).

4. The anti-rotation structure of an injection mold for automotive headlights according to claim 2, characterized in that: A jacking groove (51) is opened at the inner top of the limiting groove (31). A jacking rod (52) is slidably connected in the jacking groove (51). A third spring (53) is fixedly connected to the top of the jacking rod (52). A top plate (54) is fixedly connected to the bottom of the jacking rod (52).

5. The anti-rotation structure of an injection mold for an automotive headlight according to claim 1, wherein: A rolling groove (61) is opened on the arc-shaped block (26). A rolling bead (62) is arranged in the rolling groove (61).

6. The anti-rotation structure of an injection mold for an automotive headlight according to claim 3, wherein: Guide grooves (71) are respectively opened on both sides in the through port (41). Guide plates (72) are respectively fixedly connected to both sides of the sliding rod (42). The guide plates (72) are slidably connected to the guide grooves (71).

7. The anti-rotation structure of an injection mold for an automotive headlight according to claim 2, characterized in that: The locking rod (34) is in a T shape. The groove (33) is in a T shape.

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