A mold ejection mechanism for processing a car lamp decoration frame

Abstract

The utility model provides a kind of mould ejection mechanism for car lamp decorative frame processing, it is related to mould ejection mechanism technical field, including roof, bottom plate and ejection structure, the downside of roof is provided with upper heating plate, and the downside of upper heating plate is provided with male die, the upper end surface of bottom plate is provided with cushion block, and the upper end surface of cushion block is provided with lower baffle, the upper end of lower baffle is provided with lower heating plate, and the upper end of lower heating plate is provided with female die, ejection structure is installed between cushion block, lower baffle and lower heating plate, and the upper end of ejection structure is provided with mould groove, and product is injection molded in mould groove, the middle of the upper portion of roof is provided with injection port, and there is inner runner between upper heating plate and male die.The utility model is conveniently first used telescopic cylinder to go up, drive middle jack to drive support piece to move straight up, to drive multiple groups of thimble to be evenly driven for mould groove bottom surface, not only guarantee mould product ejection neat and stable, more fast and efficient.

Description

Technical Field

[0001] This utility model relates to the technical field of mold ejection mechanisms, specifically to a mold ejection mechanism for processing automotive headlight decorative frames. Background Technology

[0002] Plastic products, such as decorative frames for car headlights, are produced using injection molds. Based on the product's shape and structure, the decorative frame has several deep reinforcing ribs, which are embedded in the mold core.

[0003] The description of the secondary ejection mechanism for an automotive headlight decorative frame mold (publication number CN218593604U) mentions that "a lower ejector plate and an upper ejector plate are arranged between the mold feet, a core fixing plate is arranged on the mold feet, a core is arranged on the core fixing plate, the core, cavity insert, and cavity frame form a mold cavity, and an injection-molded headlight decorative frame is in the mold cavity. The headlight decorative frame has reinforcing ribs. The characteristic feature is that: a reinforcing rib insert is installed on the core fixing plate, a reinforcing rib ejection block is installed in the core, the reinforcing rib ejection block and the reinforcing rib insert are joined together, and the reinforcing rib is embedded in..." Between the reinforcing rib ejector block and the reinforcing rib insert, secondary ejector rods are connected to both sides of the lower top plate. Spring blocks are set on both sides of the outer wall of the core. The secondary ejector rods abut against the bottom surface of the spring blocks. A fixed-distance inclined surface is set at the top end of the spring blocks. Fixed-distance pressure rods are installed on both sides of the outer wall of the core fixing plate. Fixed-distance pressure blocks are set on the fixed-distance pressure rods. The fixed-distance pressure blocks match the fixed-distance inclined surfaces. However, the mold ejection structure in the prior art uses a single thin ejector rod. The ejection force is mainly concentrated at one point. Not only is the ejection force uneven, but it is also easy to damage the surface of the mold product. It is not efficient, stable and practical. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, a mold ejection mechanism for processing automotive headlight decorative frames is provided. This mechanism addresses the problems of existing mold ejection mechanisms, which use a single, thin ejector rod, resulting in concentrated ejection force at a single point. This not only leads to uneven ejection force but also easily damages the surface of the molded product, making it inefficient, unstable, and impractical.

[0005] To achieve the above objectives, a mold ejection mechanism for processing automotive headlight decorative frames is provided, comprising a top plate, a bottom plate, and an ejection structure. An upper heating plate is provided on the lower side of the top plate, and a punch is provided on the lower side of the upper heating plate. A pad is provided on the upper end face of the bottom plate, and a lower partition is provided on the upper end face of the pad. A lower heating plate is provided on the upper end of the lower partition, and a die is provided on the upper end of the lower heating plate. An ejection structure is installed between the pad, the lower partition, and the lower heating plate, and a mold groove is provided on the upper end of the ejection structure, and a product is injection molded in the mold groove.

[0006] Furthermore, an injection port is provided in the middle of the upper part of the top plate, and an inner flow channel is provided between the upper heating plate and the punch, and the injection port and the inner flow channel are connected.

[0007] Furthermore, a set of external telescopic cylinders is installed at each of the four corners of the upper surface of the base plate, and the upper end of the external telescopic cylinders is fixed under the top plate.

[0008] Furthermore, the lower part of the ejection structure is provided with a lower telescopic cylinder, and the upper left and right sides of the lower telescopic cylinder are fixed with connecting plates. The outer end of the connecting plate is fixed with a side fixing block, and the side fixing block is located in the movable cavity opened inside the guide sleeve.

[0009] Furthermore, one side of the guide sleeve has an opening, and the connecting plate moves up and down within the opening, with the upper end of the side fixing block pressing against the bottom of the central top rod.

[0010] Furthermore, the upper end of the middle ejector rod is fixed to the support plate, and multiple sets of upper ejector pins are fixed to the upper end face of the support plate, with the upper ends of the upper ejector pins fixed to the mold groove.

[0011] The beneficial effects of this utility model are as follows:

[0012] 1. In this utility model, the lower part of the injection port is respectively conveyed to the inner channels on the left and right sides. The inner channels convey the injection molten material into the mold cavity evenly, which not only ensures the quality of the injection molded product, but is also more efficient and practical.

[0013] 2. This utility model utilizes the upward extension of the lower telescopic cylinder to move the connecting plate and the side fixing block upward together, which in turn moves the side fixing block upward within the movable cavity, pushing the central jack upward, thereby pushing the support plate upward. The central jack is located within the through-hole and maintains safe and stable lifting and lowering, ensuring accurate and reliable lifting.

[0014] 3. In this utility model, multiple sets of upper ejector pins are evenly fixed between the support plate and the mold groove, thereby ensuring uniform force on the ejected mold product, helping to protect the integrity of the mold product, and making it faster, more convenient and practical. Attached Figure Description

[0015] Figure 1 This is a cross-sectional schematic diagram of an embodiment of the present utility model;

[0016] Figure 2 This is a schematic diagram of the ejection structure according to an embodiment of the present utility model;

[0017] Figure 3 This is a schematic diagram of the lower telescopic cylinder according to an embodiment of the present utility model;

[0018] Figure 4 This is a schematic diagram of the central push rod in an embodiment of the present utility model;

[0019] Figure 5 The above is a schematic diagram of the top pin in an embodiment of this utility model.

[0020] In the diagram: 1. Top plate; 10. Injection port; 11. Upper heating plate; 12. Inner runner; 13. Punch; 2. Bottom plate; 20. Spacer block; 21. Lower partition plate; 22. Lower heating plate; 23. Cavity; 24. External telescopic cylinder; 3. Ejection structure; 30. Lower telescopic cylinder; 31. Connecting plate; 32. Side fixing block; 33. Movable cavity; 34. Guide sleeve; 35. Through port; 36. Middle ejector rod; 37. Support plate; 38. Upper ejector pin; 39. Mold groove; 4. Product. Detailed Implementation

[0021] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. The specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. Specific details, such as particular system structures and technologies, are provided to facilitate a more thorough understanding of the embodiments of the present utility model. The described embodiments are some, but not all, of the embodiments disclosed herein. However, those skilled in the art should understand that the present utility model can also be implemented in other embodiments without these specific details. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without inventive effort are within the scope of protection of this disclosure.

[0022] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0023] Figure 1 This is a cross-sectional schematic diagram of an embodiment of the present utility model. Figure 2 This is a schematic diagram of the ejection structure according to an embodiment of the present utility model. Figure 3 This is a schematic diagram of the lower telescopic cylinder according to an embodiment of the present utility model. Figure 4 This is a schematic diagram of the push rod in an embodiment of the present utility model. Figure 5 The above is a schematic diagram of the top pin in an embodiment of this utility model.

[0024] Reference Figures 1 to 5 As shown, this utility model provides a mold ejection mechanism for processing a car headlight decorative frame, including a top plate 1, a bottom plate 2, and an ejection structure 3. An upper heating plate 11 is provided on the lower side of the top plate 1, and a punch 13 is provided on the lower side of the upper heating plate 11. A pad 20 is provided on the upper end surface of the bottom plate 2, and a lower partition plate 21 is provided on the upper end surface of the pad 20. A lower heating plate 22 is provided on the upper end of the lower partition plate 21, and a die 23 is provided on the upper end of the lower heating plate 22. An ejection structure 3 is installed between the pad 20, the lower partition plate 21, and the lower heating plate 22, and a mold groove 39 is provided on the upper end of the ejection structure 3. A product 4 is injected into the mold groove 39.

[0025] In this embodiment, an injection port 10 is provided in the middle of the upper part of the top plate 1, and an inner flow channel 12 is provided between the upper heating plate 11 and the punch 13, and the injection port 10 and the inner flow channel 12 are connected; a set of external telescopic cylinders 24 are installed at the four corners of the upper end face of the bottom plate 2, and the upper end of the external telescopic cylinders 24 is fixed to the bottom of the top plate 1.

[0026] In a preferred embodiment, the lower part of the injection port 10 in this invention is conveyed to the inner flow channels 12 on the left and right sides respectively. The inner flow channels 12 convey the injection molten material into the mold groove 39 evenly, which not only ensures the quality of the injection molded product, but is also more efficient and practical.

[0027] In this embodiment, a lower telescopic cylinder 30 is provided at the lower part of the ejector structure 3, and connecting plates 31 are fixed on both the left and right sides of the upper end of the lower telescopic cylinder 30. A side fixing block 32 is fixed at the outer end of the connecting plate 31, and the side fixing block 32 is located in the movable cavity 33 opened inside the guide sleeve 34. A through-hole 35 is opened on one side of the guide sleeve 34, and the connecting plate 31 moves up and down in the through-hole 35. The upper end of the side fixing block 32 is pressed against the bottom of the middle ejector rod 36.

[0028] In a preferred embodiment, the present invention utilizes the upward extension of the lower telescopic cylinder 30 to move the connecting plate 31 and the side fixing block 32 upward together, thereby moving the side fixing block 32 upward within the movable cavity 33, pushing the middle push rod 36 upward, which in turn pushes the support plate 37 upward. The middle push rod 36 is located within the through-hole 35, maintaining safe and stable lifting, and the lifting activity is accurate and reliable.

[0029] In this embodiment, the upper end of the central ejector rod 36 is fixed to the lower part of the support plate 37, and multiple sets of upper ejector pins 38 are fixed to the upper end surface of the support plate 37, and the upper ends of the upper ejector pins 38 are fixed to the lower part of the mold groove 39.

[0030] As a preferred embodiment, multiple sets of upper ejector pins 38 are evenly fixed between the support plate 37 and the mold groove 39, thereby ensuring uniform force on the ejected mold product, helping to protect the integrity of the mold product, and making it faster, more convenient and practical.

[0031] This invention effectively solves the problem that existing mold ejection systems use a single, thin ejector rod, resulting in concentrated ejection force at a single point. This not only leads to uneven ejection force but also easily damages the surface of the molded product, making it inefficient, unstable, and impractical. This invention conveniently utilizes a telescopic cylinder to lift the mold, causing the central ejector rod to move the support plate vertically upwards. This, in turn, causes multiple sets of ejector rods to uniformly eject the bottom surface of the mold groove, ensuring neat and stable ejection of the molded product while being faster and more efficient.

[0032] The above embodiments are used to explain and illustrate the present utility model, and not to limit the utility model. Any modifications and changes made to the present utility model within the spirit and scope of the claims should be included within the protection scope of the present utility model.

Claims

1. A mold ejection mechanism for processing automotive headlight decorative frames, characterized in that: The device includes a top plate (1), a bottom plate (2), and an ejector structure (3). The top plate (1) has an upper heating plate (11) on its lower side and a punch (13) on its lower side. The bottom plate (2) has a pad (20) on its upper end surface and a lower partition plate (21) on its upper end surface. The lower partition plate (21) has a lower heating plate (22) on its upper end and a die (23) on its upper end. The ejector structure (3) is installed between the pad (20), the lower partition plate (21), and the lower heating plate (22). The ejector structure (3) has a mold groove (39) on its upper end and a product (4) is injected into the mold groove (39).

2. The mold ejection mechanism for processing vehicle headlight decorative frames according to claim 1, characterized in that, The top plate (1) has an injection port (10) in the middle of its upper part, and an inner flow channel (12) is provided between the upper heating plate (11) and the punch (13), and the injection port (10) and the inner flow channel (12) are connected.

3. The mold ejection mechanism for processing vehicle headlight decorative frames according to claim 1, characterized in that, A set of external telescopic cylinders (24) are installed at each of the four corners of the upper surface of the base plate (2), and the upper end of the external telescopic cylinders (24) is fixed under the top plate (1).

4. The mold ejection mechanism for processing vehicle headlight decorative frames according to claim 1, characterized in that, The lower part of the ejection structure (3) is provided with a lower telescopic cylinder (30), and the upper left and right sides of the lower telescopic cylinder (30) are fixed with connecting plates (31). The outer end of the connecting plate (31) is fixed with a side fixing block (32), and the side fixing block (32) is located in the movable cavity (33) opened in the guide sleeve (34).

5. The mold ejection mechanism for processing a vehicle headlight decorative frame according to claim 4, characterized in that, The guide sleeve (34) has an opening (35) on one side, and the connecting plate (31) moves up and down in the opening (35), and the upper end of the side fixing block (32) rests on the bottom of the central top rod (36).

6. The mold ejection mechanism for processing vehicle headlight decorative frames according to claim 5, characterized in that, The upper end of the middle ejector rod (36) is fixed under the support plate (37), and multiple sets of upper ejector pins (38) are fixed on the upper end surface of the support plate (37), and the upper end of the upper ejector pins (38) is fixed under the mold groove (39).

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