Core-pulling mold for high-inclination ceiling lamp shell

Abstract

The utility model discloses a core-pulling mould for a high-inclination inclined top lamp shell, which relates to the technical field of inclined top core-pulling moulds and comprises a base, a fixing sleeve is arranged in the middle of the base in a penetrating manner, and an ejector rod is arranged in the fixing sleeve in a penetrating manner. The base is arranged, the ejector rod is arranged in the fixing sleeve in the middle of the base, the mold base is arranged at the top end of the ejector rod, injection molding of a lamp shell product can be achieved through the mold base, after injection molding of the product is completed, the ejector rod can eject the product upwards, meanwhile, the ejector rod can drive the inclined ejection mold to move upwards by a certain stroke at the same time, and therefore injection molding is achieved. When the inclined ejection mold moves, the inclined ejection mold is separated from the mold base, then the inclined ejection mold stops moving, the ejector rod continues to push the product to move upwards, the product generates driving force on the inclined ejection mold at the moment, the inclined ejection mold moves in an inclined mode, demolding is completed, and the inclined ejection mold moves along with the product by a certain stroke, so that the inclined ejection mold can be effectively extruded with the product due to the influence of the mold base; and therefore, the smoothness of the product demolding process is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of inclined top core-pulling moulds, in particular to a core-pulling mould for a lamp housing with a large inclination. Background Art

[0002] Headlights are important parts of a car and are a tool for illuminating the road when the vehicle is driving at night. The outer lamp shell on the headlight is a plastic product, mostly formed by injection molding. The headlight shell has a certain inclination. In the existing technology, a large-angle inclined top core-pulling mold is used to produce the lamp shell. In the mold structure, the inclined top is a common product demoulding method. It is a mold mechanism developed to solve the problem of product undercut. Its basic principle is to turn the vertical movement of the mold opening and closing into horizontal movement. The lamp shell product needs to be demoulded after injection molding. During the demoulding process, in order to ensure that the buckle groove inside the lamp shell product can be demoulded smoothly, a inclined top core-pulling mold is required to complete the demoulding. However, in the existing inclined top core-pulling mold, the inclined top mold adopts a passive motion method. The driving force of the inclined top mold comes from the driving force of the ejector pin on the product. Therefore, it is easy for the inclined top mold and the product to be squeezed, causing local damage to the product.

[0003] Publication number CN218640264U describes a core-pulling mold for a steeply sloped roof lamp housing. It comprises a front mold and a rear mold, with a cavity formed between the two molds. The rear mold is secured with a rear platen around its perimeter. The mold contains multiple working components, each consisting of a power unit, a guide unit, and a core-pulling unit. The power, guide, and core-pulling units in each working unit are interconnected. The power rod in the power unit is a tilted ejector rod, positioned at an angle. Each working unit contains a single ejector rod. This design simplifies and facilitates processing, reduces mold costs, and ensures stable and efficient production. This structure provides consistent, safe, and reliable movement, particularly during high-volume production.

[0004] In actual application, the above technical solution still cannot solve the problem of passive movement of the inclined top mold and extrusion of the product, and the layout of the inclined top mold is prone to conflict with the ejector pin, and the inclination of the inclined top mold is limited.

[0005] Therefore, it is necessary to invent a large-angle inclined top lamp housing core-pulling mold to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a core-pulling mold for a steeply inclined top lamp housing to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a core-pulling mold for a large-angle inclined top lamp shell, comprising a base, a fixing sleeve is provided through the middle of the base, a top rod is provided through the inside of the fixing sleeve, a mold base is provided on the top of the top rod, a lamp shell product is provided above the mold base, and a groove with an inclined structure is provided around the inner side wall of the lamp shell product, a plurality of inclined molds are provided around the outer side of the top rod, an inclined top mold is provided at the top of the inclined mold, and the inclined top mold corresponds to the groove, a guide column with an inclined structure is fixedly provided at the bottom end of the inclined mold, a positioning seat is provided at the outer side of the guide column, and the positioning seat is provided as a "U"-shaped structure, a plurality of sliders with inclined structures are fixedly provided on both sides of the guide column, a plurality of sliding grooves with inclined structures are provided on the inner side wall of the positioning seat, and the sliders correspond to the sliding grooves.

[0008] Preferably, a movable frame is sleeved on the middle portion of the fixed sleeve, and the plurality of positioning seats are fixedly arranged on the outer side of the movable frame.

[0009] Preferably, a limiting plate is fixedly provided in the middle of the fixing sleeve, and the limiting plate is provided above the movable frame.

[0010] Preferably, a strip groove is provided through the middle of the fixing sleeve, a movable rod is provided through the interior of the strip groove, and the movable rod is fixedly provided at the middle of the top rod.

[0011] Preferably, a movable ring is fixedly provided on the outer side of the movable rod, and a transition spring is provided between the movable ring and the movable frame.

[0012] Preferably, a pneumatic push rod is fixedly provided at the bottom end of the push rod, and the pneumatic push rod is fixedly provided on the lower surface of the base.

[0013] The technical effects and advantages of this utility model are:

[0014] 1. The utility model is provided with a base, a push rod is provided in a fixed sleeve in the middle of the base, and a mold base is provided at the top of the push rod. The mold base can realize the injection molding of the lamp housing product. After the injection molding of the product is completed, the push rod can push the product upward. At the same time, the push rod can drive the inclined top mold to move upward for a certain stroke at the same time, so that the inclined top mold is separated from the mold base, and then the inclined top mold stops moving. The push rod continues to push the product upward. At this time, the product generates a driving force on the inclined top mold, so that the inclined top mold tilts and completes demoulding. The inclined top mold follows the product movement for a certain stroke, which can effectively squeeze the inclined top mold inside due to the influence of the mold base and the product, thereby ensuring the smoothness of the product demoulding process;

[0015] 2. The utility model sets an inclined top mold, which is set at the top of the inclined mold, and a guide column and a positioning seat are set at the bottom of the inclined mold. The guide column and the positioning seat are connected by a slider and a slide groove, and the slider and the slide groove are both set to an inclined structure. The slider cooperates with the slide groove to guide the oblique movement of the inclined top mold, and the change of the inclination of the slider and the slide groove does not affect the occupancy of the inclined mold space, thereby facilitating the design of an inclined mold with a larger inclination, thereby improving the inclination of the inclined top core-pulling mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a schematic cross-sectional view of the overall structure of the utility model.

[0018] Figure 3 For the utility model Figure 2 A magnified schematic diagram of the structure in the middle.

[0019] Figure 4 This is a schematic diagram of the inclined top mold structure of the present utility model.

[0020] In the figure: 1. Base; 2. Fixed sleeve; 3. Ejector rod; 4. Mold base; 5. Lamp housing product; 6. Groove; 7. Inclined mold; 8. Inclined ejector mold; 9. Guide column; 10. Positioning seat; 11. Slider; 12. Slide groove; 13. Movable frame; 14. Limiting plate; 15. Strip groove; 16. Movable rod; 17. Movable ring; 18. Transition spring; 19. Pneumatic push rod. DETAILED DESCRIPTION

[0021] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0022] The utility model provides Figure 1-4The shown type of large-slope inclined top lamp housing core-pulling mold comprises a base 1, a fixing sleeve 2 is provided through the middle of the base 1, a push rod 3 is provided inside the fixing sleeve 2, a mold base 4 is provided on the top of the push rod 3, a lamp housing product 5 is provided above the mold base 4, and the inner side wall of the lamp housing product 5 is surrounded by a groove 6 of an inclined structure, a plurality of inclined molds 7 are provided around the outer side of the push rod 3, an inclined top mold 8 is provided on the top of the inclined mold 7, and the inclined top mold 8 corresponds to the groove 6, a guide column 9 with an inclined structure is fixedly provided on the bottom end of the inclined mold 7, a positioning seat 10 is provided on the outer side of the guide column 9, and the positioning seat 10 is set in a "U"-shaped structure, a plurality of sliders 11 with an inclined structure are fixedly provided on both sides of the guide column 9, a plurality of sliding grooves 12 with an inclined structure are opened on the inner side wall of the positioning seat 10, and the sliders 11 correspond to the sliding grooves 12, and the sliders 11 and the sliding grooves 12 can limit the movement of the guide column 9, thereby ensuring that the inclined mold 7 and the inclined top mold 8 can only move in an inclined manner, so as to facilitate the demoulding of the inclined top mold 8;

[0023] Specifically, a movable frame 13 is provided in the middle of the fixed sleeve 2, and a plurality of positioning seats 10 are fixedly provided on the outside of the movable frame 13. A limit plate 14 is fixedly provided in the middle of the fixed sleeve 2, and the limit plate 14 is provided above the movable frame 13. A strip groove 15 is provided through the middle of the fixed sleeve 2, and a movable rod 16 is provided through the inside of the strip groove 15, and the movable rod 16 is fixedly provided in the middle of the top rod 3. A movable ring 17 is fixedly provided on the outside of the movable rod 16, and a transition spring 18 is provided between the movable ring 17 and the movable frame 13. The transition spring 18 can play a transmission role between the movable ring 17 and the movable frame 13, and after the movable frame 13 stops moving, the transition spring 18 will not affect the movement of the top rod 3.

[0024] More specifically, a pneumatic push rod 19 is fixedly provided at the bottom end of the ejector pin 3 , and the pneumatic push rod 19 is fixedly provided on the lower surface of the base 1 , and the pneumatic push rod 19 is used to drive the ejector pin 3 to complete demoulding.

[0025] Working principle of this utility model:

[0026] When the device is in use, the mold base 4 serves as the inner mold of the lamp housing product 5. The mold base 4 cooperates with the outer mold to realize the injection molding of the lamp housing product 5. After the lamp housing product 5 is formed, the outer mold is first removed, and then the push rod 19 is started to push the ejector 3, so that the ejector 3 pushes the lamp housing product 5 upward, thereby separating the lamp housing product 5 from the mold base 4. At the same time, the ejector 3 drives the movable frame 13 to move upward through the movable rod 16, the movable ring 17 and the transition spring 18. The movable frame 13 drives the inclined ejector 8 to move upward through the positioning seat 10, the guide column 9 and the inclined mold 7, so that The inclined top mold 8 first separates from the mold base 4 following the product until the movable frame 13 moves to the lower surface of the limit plate 14. At this time, the movable frame 13 stops moving, and the positioning seat 10 stops moving accordingly, and the lamp housing product 5 continues to move upward under the action of the push rod 3. The groove 6 on the inner side of the lamp housing product 5 generates a driving force for the inclined top mold 8, and the inclined top mold 8 is affected by the inclined mold 7. The movement of the inclined mold 7 is limited by the slider 11 and the slide groove 12, so that the inclined top mold 8 slides obliquely downward, thereby realizing the demoulding of the inclined top mold 8. At this point, the demoulding of the lamp housing product 5 can be completed.

[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A core-pulling mold for a steeply inclined ceiling lamp housing, comprising a base (1), characterized in that: A fixing sleeve (2) is provided through the middle of the base (1), a top rod (3) is provided through the interior of the fixing sleeve (2), a mold base (4) is provided at the top of the top rod (3), a lamp housing product (5) is provided above the mold base (4), and a groove (6) with an inclined structure is provided around the inner side wall of the lamp housing product (5), a plurality of inclined molds (7) are provided around the outer side of the top rod (3), an inclined top mold (8) is provided at the top of the inclined mold (7), and the inclined top mold (8) is provided. (8) Corresponding to the groove (6), a guide column (9) with an inclined structure is fixedly provided at the bottom end of the inclined mold (7), a positioning seat (10) is provided on the outer side of the guide column (9), and the positioning seat (10) is set as a "U"-shaped structure, and multiple sliders (11) with an inclined structure are fixedly provided on both sides of the guide column (9), and the inner side wall of the positioning seat (10) is provided with multiple sliding grooves (12) with an inclined structure, and the sliders (11) correspond to the sliding grooves (12).

2. The core-pulling mold for a steeply inclined ceiling lamp housing according to claim 1, characterized in that: A movable frame (13) is sleeved on the middle portion of the fixed sleeve (2), and a plurality of positioning seats (10) are fixedly arranged on the outside of the movable frame (13).

3. The core-pulling mold for a steeply inclined ceiling lamp housing according to claim 2, characterized in that: A limiting plate (14) is fixedly provided in the middle of the fixed sleeve (2), and the limiting plate (14) is arranged above the movable frame (13).

4. The core-pulling mold for a steeply inclined ceiling lamp housing according to claim 3, characterized in that: A strip groove (15) is provided through the middle of the fixed sleeve (2), a movable rod (16) is provided through the interior of the strip groove (15), and the movable rod (16) is fixedly provided at the middle of the top rod (3).

5. The core-pulling mold for a steeply inclined ceiling lamp housing according to claim 4, characterized in that: A movable ring (17) is fixedly provided on the outer side of the movable rod (16), and a transition spring (18) is provided between the movable ring (17) and the movable frame (13).

6. The core-pulling mold for a steeply inclined ceiling lamp housing according to claim 5, characterized in that: A pneumatic push rod (19) is fixedly provided at the bottom end of the push rod (3), and the pneumatic push rod (19) is fixedly provided on the lower surface of the base (1).

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