Connecting structure for movable mold and fixed mold of automobile lamp injection molding

Abstract

The utility model discloses a car lamp injection molding movable mold and fixed mold connecting structure, and relates to the technical field of car lamp injection molding, the car lamp injection molding movable mold and fixed mold connecting structure comprises a movable mold main body, a fixed mold main body and a base, the lower side of the movable mold main body is provided with a through groove, and the inside of the through groove is fixedly connected with a limiting block and an inclined rod; according to the mold, in the mold closing stage, the multiple limiting blocks and the multiple inclined rods synchronously face downwards, the inclined rods start to be inserted into the inclined holes, the inclined faces of the limiting blocks start to be attached to the inclined faces of the sliding blocks, the inclined faces of the limiting blocks start to be attached to the inclined faces of the sliding blocks, and therefore the sliding blocks can be fixed; in the mold removal stage, the inclined rod is pulled away from the inclined hole, the limiting block is gradually separated from the inclined face of the sliding block, the pushing head is separated from the cavity notches, supporting is relieved, workers can conveniently demold from the notches, and the demolding quality and efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle lamp injection molding, in particular to a vehicle lamp injection molding movable mold and a fixed mold connection structure. Background Art

[0002] Car lamp injection molding refers to the process of producing car lamps using the injection molding process. Car lamps are usually made of plastic parts. Injection molding is a commonly used plastic processing technology that injects molten plastic material into the mold and solidifies it in the mold to obtain parts of the desired shape.

[0003] However, in the prior art, during the process of headlight injection molding, it is first necessary to prepare movable and fixed molds, then heat and melt the plastic particles into a liquid state, inject the molten plastic into the mold through an injection machine, and after the plastic cools and solidifies, open the mold to take out the molded headlight component. Whether the two molds are accurately matched will directly affect the quality of the headlight injection molding and the convenience of mold removal. Utility Model Content

[0004] The utility model aims to solve the problems existing in the prior art and proposes a connecting structure of a moving mold and a fixed mold for injection molding of a vehicle lamp.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a connection structure of a movable mold and a fixed mold for injection molding of a headlight, comprising a movable mold body, a fixed mold body and a base, a through groove is opened on the lower side of the movable mold body, a limit block and an inclined rod are fixedly connected inside the through groove, a positioning column is fixedly connected to the lower corner position of the movable mold body, a sleeve is fixedly connected inside the corner of the fixed mold body, the positioning column is plugged into the sleeve, and a fitting mechanism is fixedly connected to both sides of the fixed mold body, the fitting mechanism comprises a side plate, a mounting plate, a sliding rod, a spring, a slider, a bottom plate and a push head, an inclined hole is opened in the middle of the slider, the inclined rod and the through groove have the same inclination angle and the two are plugged into each other, and the inclined surface of the limit block abuts against the inclined surface of the inclined hole.

[0006] Preferably, one end of the push head is fixedly connected to one side of the inclined hole, and both sides of the inclined hole are slidably connected with side plates.

[0007] Preferably, the side plate is fixedly connected to one side of the mounting plate, and the sliding rod is slidably connected to the middle of the mounting plate.

[0008] Preferably, one end of the slide rod is fixedly connected to the inclined surface of the inclined hole, and the spring is sleeved on the outer side of the slide rod.

[0009] Preferably, the side plates, the mounting plate and the bottom plate are all fixedly connected to the fixed mold body.

[0010] Preferably, an arc opening is provided on the lower side of the limit block, and the arc opening is engaged with the sliding rod.

[0011] Preferably, a second cooling pipe is fixedly installed inside the fixed mold body, a second chain ring is fixedly connected to the outside of the fixed mold body, a first cooling pipe is fixedly installed inside the movable mold body, a first chain ring is fixedly connected to the outside of the movable mold body, and an injection port is opened on the upper side of the movable mold body.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. In the utility model, in the mold closing stage, the multiple positioning columns on the lower side of the movable mold body are respectively aligned with the multiple sleeves on the upper side of the fixed mold body for insertion, so that the movable mold body and the fixed mold body are accurately aligned to ensure the precise matching of the internal cavity. At the same time, when the movable mold body moves vertically downward and approaches the fixed mold body, multiple limit blocks and multiple inclined rods move downward synchronously, and the inclined rods begin to be inserted into the inclined holes. The inclined surface of the limit block begins to fit the inclined surface of the slider, so that the slider is subjected to an inward moving force and slides inward between the two sets of side plates. The slider pushes the push head to resist the notches of the two mold cavities, providing support for the injection molded parts and ensuring the molding quality of the injection molded parts.

[0014] 2. In the utility model, during the demolding stage, the movable mold body moves upward, and drives the positioning column, the limit block and the inclined rod upward, the inclined rod is pulled out of the inclined hole, the limit block gradually separates from the inclined surface of the slider, and when the slider moves inward, it drives the slide bar to compress the spring, after the inclined rod and the limit block move upward, the restoring elastic force of the spring after deformation pushes the slide bar outward, and the slide bar pulls the slide bar to move, thereby driving the push head to separate from the notch of the cavity, releasing the support, making it easier for workers to demold from the notch, and improving the demolding quality and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model provides a three-dimensional structural schematic diagram of a connection structure between a moving mold and a fixed mold for injection molding of a vehicle lamp;

[0016] Figure 2 The utility model provides a three-dimensional structural schematic diagram of a movable mold body in a connection structure of a movable mold and a fixed mold for injection molding of a vehicle lamp;

[0017] Figure 3 The utility model provides a three-dimensional structural schematic diagram of a fixed mold body in a connection structure of a movable mold and a fixed mold for injection molding of a vehicle lamp;

[0018] Figure 4 The utility model provides a three-dimensional structural schematic diagram of a local engaging mechanism in a connecting structure of a moving mold and a fixed mold for injection molding of a vehicle lamp.

[0019] Legend: 1. Moving mold body; 11. Injection port; 12. First cooling pipe; 13. First link; 14. Positioning column; 15. Through groove; 16. Limit block; 17. Arc opening; 18. Oblique rod; 2. Fixed mold body; 21. Sleeve; 22. Second cooling pipe; 23. Second link; 3. Fitting mechanism; 31. Side plate; 32. Mounting plate; 33. Sliding rod; 34. Spring; 35. Oblique hole; 36. Sliding block; 37. Bottom plate; 38. Push head; 4. Base. DETAILED DESCRIPTION

[0020] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0022] Embodiment 1

[0023] like Figure 1-4 As shown, the utility model provides a structure for connecting a movable mold and a fixed mold for injection molding of a headlight, comprising a movable mold body 1, a fixed mold body 2 and a base 4, a through slot 15 is provided on the lower side of the movable mold body 1, a limited block 16 and an inclined rod 18 are fixedly connected inside the through slot 15, a positioning column 14 is fixedly connected to the lower corner position of the movable mold body 1, a sleeve 21 is fixedly connected inside the corner of the fixed mold body 2, the positioning column 14 is plugged with the sleeve 21, and a fitting mechanism 3 is fixedly connected to both sides of the fixed mold body 2, the fitting mechanism 3 comprises a side plate 31, a mounting plate 32, a slide bar 33, a spring 34, a slide block 36, a bottom plate 37 and a push head 38, and the middle part of the slide block 36 is opened. An inclined hole 35 is provided, the inclined rod 18 and the through groove 15 have the same inclination angle and are plugged into each other, the inclined surface of the limit block 16 abuts against the inclined surface of the inclined hole 35, one end of the push head 38 is fixedly connected to one side of the inclined hole 35, and both sides of the inclined hole 35 are slidably connected with side plates 31, the side plate 31 is fixedly connected to one side of the mounting plate 32, the slide rod 33 is slidably connected to the middle part of the mounting plate 32, one end of the slide rod 33 is fixedly connected to the inclined surface of the inclined hole 35, the spring 34 is sleeved on the outside of the slide rod 33, the side plate 31, the mounting plate 32 and the bottom plate 37 are all fixedly connected to the fixed mold body 2, and an arc opening 17 is provided on the lower side of the limit block 16, and the arc opening 17 is clamped with the slide rod 33.

[0024] The specific configuration and function of this embodiment are described in detail below: In the mold closing stage, the multiple positioning columns 14 on the lower side of the movable mold body 1 are respectively aligned with the multiple sleeves 21 on the upper side of the fixed mold body 2, so that the movable mold body 1 and the fixed mold body 2 are accurately aligned to ensure the accurate matching of the internal cavities. At the same time, when the movable mold body 1 moves vertically downward and approaches the fixed mold body 2, the multiple limit blocks 16 and the multiple inclined rods 18 move downward synchronously, and the inclined rods 18 begin to be inserted into the inclined holes 35. The inclined surface of the limit block 16 begins to fit the inclined surface of the slider 36, so that the slider 36 is subjected to an inward moving force and slides inward between the two sets of side plates 31. The slider 36 pushes the push head 38 to resist the gaps of the two mold cavities to provide support for the injection molded parts;

[0025] During the demolding stage, the movable mold body 1 moves upward, and drives the positioning column 14, the limit block 16 and the inclined rod 18 upward, the inclined rod 18 is pulled out from the inclined hole 35, and the limit block 16 gradually disengages from the inclined surface of the slider 36. When the slider 36 moves inward, it drives the slide bar 33 to compress the spring 34. After the inclined rod 18 and the limit block 16 move upward, the restoring elastic force of the spring 34 after deformation pushes the slide bar 33 outward, and the slide bar 33 pulls the slider 36 to move, thereby driving the push head 38 to disengage from the notch of the cavity, releasing the support, and facilitating the workers to demold from the notch.

[0026] Embodiment 2

[0027] like Figure 1-4 As shown, a structure for connecting a movable mold and a fixed mold for injection molding of a vehicle lamp comprises a movable mold body 1, a fixed mold body 2 and a base 4, a second cooling pipe 22 is fixedly installed inside the fixed mold body 2, a second chain link 23 is fixedly connected to the outer side of the fixed mold body 2, a first cooling pipe 12 is fixedly installed inside the movable mold body 1, a first chain link 13 is fixedly connected to the outer side of the movable mold body 1, and an injection port 11 is opened on the upper side of the movable mold body 1.

[0028] The effect achieved by the entire embodiment is that the base 4 supports the fixed mold body 2, the movable mold body 1 and the fixed mold body 2 are molded together to perform the injection molding of the headlight, and the first chain link 13 and the second chain link 23 facilitate the closing and demolding of the two molds, and also facilitate the transfer of the entire mold position. In the later stage of injection molding, the coolant in the first cooling tube 12 and the second cooling tube 22 accelerates the cooling of the headlight injection molded part.

[0029] The use method and working principle of the device: When using the movable mold and fixed mold connection structure for the headlight injection molding, align the multiple positioning columns 14 on the lower side of the movable mold body 1 with the multiple sleeves 21 on the upper side of the fixed mold body 2, so that the movable mold body 1 and the fixed mold body 2 are accurately aligned. At the same time, when the movable mold body 1 moves vertically downward and approaches the fixed mold body 2, the multiple limit blocks 16 and the multiple inclined rods 18 move downward synchronously, and the inclined rods 18 begin to be inserted into the inclined holes 35. The inclined surface of the limit block 16 begins to fit the inclined surface of the slider 36, so that the slider 36 is subjected to an inward moving force and slides inward between the two sets of side plates 31. The slider 36 pushes the push head 38 to resist the gaps in the two mold cavities to provide support for the injection molded parts. The molten plastic is injected into the two mold cavities through the injection port 11. In the later stage of injection molding, the coolant in the first cooling tube 12 and the second cooling tube 22 accelerates the cooling of the headlight injection molded parts. In the demolding stage, the movable mold body 1 moves upward, and drives the positioning column 14, the limit block 16 and the inclined rod 18 upward, the inclined rod 18 is pulled out from the inclined hole 35, and the limit block 16 gradually disengages from the inclined surface of the slider 36. When the slider 36 moves inward, it drives the slide bar 33 to compress the spring 34. After the inclined rod 18 and the limit block 16 move upward, the restoring elastic force of the spring 34 after deformation pushes the slide bar 33 outward, and the slide bar 33 pulls the slider 36 to move, thereby driving the push head 38 to disengage from the cavity notch, releasing the support, and facilitating the workers to demold from the notch.

[0030] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A structure for connecting a movable mold and a fixed mold for injection molding of a vehicle lamp, comprising a movable mold body (1), a fixed mold body (2) and a base (4), characterized in that: A through slot (15) is provided at the lower side of the movable mold body (1), a limit block (16) and an inclined rod (18) are fixedly connected inside the through slot (15), a positioning column (14) is fixedly connected at the lower corner position of the movable mold body (1), a sleeve (21) is fixedly connected inside the corner of the fixed mold body (2), the positioning column (14) is plugged into the sleeve (21), and a fitting mechanism (3) is fixedly connected at both sides of the fixed mold body (2), the fitting mechanism (3) comprises a side plate (31), a mounting plate (32), a sliding rod (33), a spring (34), a slider (36), a bottom plate (37) and a push head (38), an inclined hole (35) is provided in the middle of the slider (36), the inclined rod (18) and the through slot (15) have the same inclination angle and are plugged into each other, and the inclined surface of the limit block (16) abuts against the inclined surface of the inclined hole (35).

2. The structure of connecting a moving mold and a fixed mold for injection molding of a vehicle lamp according to claim 1, characterized in that: One end of the push head (38) is fixedly connected to one side of the inclined hole (35), and both sides of the inclined hole (35) are slidably connected to side plates (31).

3. The structure of connecting a moving mold and a fixed mold for injection molding of a vehicle lamp according to claim 2, characterized in that: The side plate (31) is fixedly connected to one side of the mounting plate (32), and the sliding rod (33) is slidably connected to the middle part of the mounting plate (32).

4. The structure of connecting a moving mold and a fixed mold for injection molding of a vehicle lamp according to claim 3, characterized in that: One end of the slide rod (33) is fixedly connected to the inclined surface of the inclined hole (35), and the spring (34) is sleeved on the outside of the slide rod (33).

5. The structure for connecting a moving mold and a fixed mold for injection molding of a vehicle lamp according to claim 4, characterized in that: The side plate (31), the mounting plate (32) and the bottom plate (37) are all fixedly connected to the fixed mold body (2).

6. The structure for connecting a moving mold and a fixed mold for injection molding of a vehicle lamp according to claim 5, characterized in that: An arc opening (17) is provided on the lower side of the limit block (16), and the arc opening (17) is engaged with the slide rod (33).

7. The structure for connecting a moving mold and a fixed mold for injection molding of a vehicle lamp according to claim 6, characterized in that: A second cooling pipe (22) is fixedly installed inside the fixed mold body (2), a second chain link (23) is fixedly connected to the outside of the fixed mold body (2), a first cooling pipe (12) is fixedly installed inside the movable mold body (1), a first chain link (13) is fixedly connected to the outside of the movable mold body (1), and an injection port (11) is opened on the upper side of the movable mold body (1).

Images