Striped garbage can external outer cylinder injection mold

Abstract

The utility model relates to injection mold technical field discloses a kind of stripe garbage can external outer cylinder injection mold, including fixed mould seat plate, fixed mould seat plate left side is equipped with fixed mould plate, the fixed mould plate left side is equipped with stripping plate, the stripping plate left side is equipped with movable mould plate, the fixed mould plate inside bottom side is fixedly connected with the material receiving assembly of front and rear distribution;The material receiving assembly includes the material receiving plate of front and rear distribution, the material receiving plate rear side is fixedly connected with limit plate, the material receiving plate inside is slidably connected with telescopic pipe, the telescopic pipe outside is fixedly connected with the limit block one of front and rear distribution, the telescopic pipe inside is slidably connected with telescopic rod, the telescopic rod outside is fixedly connected with the limit block two of front and rear distribution.In the utility model, by setting up the material receiving assembly of material receiving plate, telescopic pipe, telescopic rod and limit plate etc., can automatically extend to undertake outer cylinder finished product in stripping process, avoid the situation that finished product directly falls to table top or ground.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and in particular to an injection mold for an external outer cylinder of a striped trash can. Background Technology

[0002] The outer casing of a striped trash can is a common component in sanitation equipment and household goods. It is mainly used to fit an inner liner bag, enhance the structural strength of the trash can, and improve its appearance. It is mostly made of polypropylene or high-density polyethylene and is mass-produced through injection molding.

[0003] The existing striped trash can external cylinder injection mold is usually composed of a fixed mold assembly, a moving mold assembly, and a guiding mechanism. After the fixed mold assembly and the moving mold assembly are closed, a cavity is formed. Molten plastic is injected through the sprue to finally produce the finished striped trash can, which can then be removed.

[0004] However, existing molds lack dedicated material receiving components in actual production. After demolding, the finished outer cylinder falls directly from the mold cavity onto the production table or ground, requiring operators to pick it up manually. This not only poses a risk of burns from high temperatures, but also causes the slider, core-pulling mechanism, or demolding plate to jam during demolding due to excessive frictional resistance, insufficient lubrication, or minor deformation of components, as the stripes on the outer cylinder surface increase the contact area between the cavity and the product. Furthermore, existing molds do not have an emergency temporary demolding structure. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an external cylinder injection mold for a striped trash can, aiming to improve the problems in the prior art where the lack of a receiving component leads to high safety risks during manual picking and the lack of a temporary demolding structure during demolding causes demolding failure.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An injection mold for an external outer cylinder of a striped trash can includes a fixed mold base plate, a fixed template is installed on the left side of the fixed mold base plate, a stripping template is provided on the left side of the fixed template, a movable template is provided on the left side of the stripping template, a movable mold support plate is provided on the left side of the movable template, and a movable mold base plate is provided on the left side of the movable mold support plate. Material receiving components distributed front and rear are fixedly connected to the bottom side inside the fixed template.

[0008] The receiving assembly includes receiving plates distributed at the front and back. The rear of the receiving plate is slidably connected to the inside of the fixed template. A limiting plate is fixedly connected to the rear side of the receiving plate. A telescopic tube is slidably connected inside the receiving plate. A limiting block 1 distributed at the front and back is fixedly connected to the outside of the telescopic tube. A telescopic rod is slidably connected inside the telescopic tube. A limiting block 2 distributed at the front and back is fixedly connected to the outside of the telescopic rod.

[0009] As a further description of the above technical solution:

[0010] The top of the moving template and the top and bottom of the moving template base plate are fixedly connected to support blocks distributed in front and behind. A cylinder is fixedly connected to the opposite side of the support block. A connecting block is fixedly connected to the driving end of the cylinder. A fixing plate is fixedly connected to the bottom side of the connecting block. The fixing plate is fixedly connected to the outside of the stripping template.

[0011] As a further description of the above technical solution:

[0012] The fixed template and the moving template have multiple evenly distributed water inlets on their outer sides, and the fixed template base plate has a pouring gate on its right side;

[0013] As a further description of the above technical solution:

[0014] The moving mold support plate is equipped with multiple evenly distributed guide columns, which penetrate the interior of the fixed mold plate, the release mold plate, and the moving mold plate.

[0015] As a further description of the above technical solution:

[0016] The telescopic rod is fixedly connected inside the moving template, and the front part of the receiving plate is slidably connected inside the moving template;

[0017] As a further description of the above technical solution:

[0018] The top of the ejector plate has expansion holes distributed front and back, and the receiving plate passes through the expansion holes;

[0019] As a further description of the above technical solution:

[0020] The moving template has front and rear distributed shrinkage grooves inside, and the front part of the receiving plate is slidably connected in the shrinkage grooves;

[0021] As a further description of the above technical solution:

[0022] The template has front and rear distributed limiting expansion grooves inside, the rear part of the receiving plate is slidably connected in the limiting expansion groove, and the limiting plate is slidably connected in the limiting expansion groove.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, by setting up a receiving assembly consisting of a receiving plate, a telescopic tube, a telescopic rod, and a limiting plate, the rear part of the receiving plate is slidably connected to the limiting telescopic groove of the fixed template, and the front part is slidably connected to the moving template through a shrinkage groove. With the sliding extension and retraction of the telescopic tube and the telescopic rod, and the stroke limitation of the first limiting block and the second limiting block, it can automatically extend to receive the finished outer cylinder during the demolding process, avoiding the situation where the finished product falls directly onto the table or the ground.

[0025] 2. In this utility model, the connecting block and the fixed plate are driven by the cylinder to drive the demolding template movement, and the guide column that penetrates the fixed template, demolding template and moving template achieves precise guidance, which greatly reduces the frictional resistance and misalignment risk in the demolding process and reduces production interruptions caused by the slider, core pulling mechanism or demolding template jamming. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of an injection mold for an external outer cylinder of a striped trash can, as proposed in this utility model.

[0027] Figure 2 This is a schematic diagram of the guide column structure of the injection mold for the outer cylinder of a striped trash can according to this utility model;

[0028] Figure 3 This is a schematic diagram of the limiting and telescopic groove of the injection mold for the outer cylinder of a striped trash can according to this utility model;

[0029] Figure 4 This is a schematic diagram of the receiving plate of the injection mold for the outer cylinder of a striped trash can according to this utility model;

[0030] Figure 5 This is a schematic diagram of the material receiving component of the external cylinder injection mold for a striped trash can according to this utility model.

[0031] Legend:

[0032] 1. Fixed mold base plate; 2. Fixed mold plate; 3. Sprue; 4. Water inlet; 5. Demolding mold plate; 6. Moving mold plate; 7. Moving mold support plate; 8. Moving mold base plate; 9. Receiving plate; 10. Limiting plate; 11. Limiting telescopic groove; 12. Telescopic tube; 13. Telescopic rod; 14. Limiting block one; 15. Limiting block two; 16. Telescopic hole; 17. Shrinkage groove; 18. Guide column; 19. Cylinder; 20. Support block; 21. Connecting block; 22. Fixing plate. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Reference Figures 1-5This utility model provides an embodiment of an external injection mold for a striped trash can, comprising a fixed mold base plate 1, which supports the weight of the overall fixed mold structure and transmits injection pressure. A fixed template 2 is installed on the left side of the fixed mold base plate 1. The inner cavity of the fixed template 2 is machined with a striped structure that matches the surface of the outer cylinder. After closing with the moving template 6, it forms a complete molding space. A release template 5 is provided on the left side of the fixed template 2. During the mold opening process, the release template 5 is driven by external force to push the molded outer cylinder out of the cavity of the fixed template 2, preventing the product from sticking to the fixed mold side. It is also part of the mold shaping process. A movable mold plate 6 is provided on the left side. The movable mold plate 6 is used to form the inner surface of the outer cylinder. Its outer core structure matches the shape of the inner cylinder. When the mold is closed, it fits tightly with the cavity of the fixed mold plate 2. A movable mold support plate 7 is provided on the left side of the movable mold plate 6. The movable mold support plate 7 plays the role of supporting the movable mold plate 6 and can withstand the high pressure generated during the injection molding process to prevent the movable mold plate 6 from deforming due to excessive force. A movable mold base plate 8 is provided on the left side of the movable mold support plate 7. The movable mold base plate 8 is used to connect the mold opening and closing drive mechanism of the injection molding machine and transmit power to realize the opening and closing action of the mold. The bottom side of the fixed mold plate 2 is fixedly connected with front and rear distributed material receiving components.

[0035] The receiving assembly includes front and rear receiving plates 9. The rear of the receiving plate 9 is slidably connected inside the fixed mold plate 2. The surface of the receiving plate 9 can stably support the outer cylinder after demolding. A limit plate 10 is fixedly connected to the rear side of the receiving plate 9. The function of the limit plate 10 is to limit the sliding stroke of the receiving plate 9 and prevent the receiving plate 9 from excessively extending out of the fixed mold plate 2 during sliding. A telescopic tube 12 is slidably connected inside the receiving plate 9. The telescopic tube 12 can slide freely inside the receiving plate 9. The overall extension distance of the receiving assembly can be adjusted by length extension and contraction. A first limit block 14 is fixedly connected to the outside of the telescopic tube 12. The first limit block 14 can be locked on the inner edge of the receiving plate 9 to limit the maximum sliding distance of the telescopic tube 12. A telescopic rod 13 is slidably connected inside the telescopic tube 12. The telescopic rod 13 cooperates with the telescopic tube 12 to further increase the adjustable length range of the receiving assembly. A second limit block 15 is fixedly connected to the outside of the telescopic rod 13. The second limit block 15 is used for... The telescopic rod 13 is fixedly connected inside the moving template 6 to limit the sliding stroke of the telescopic rod 13 within the telescopic tube 12. The telescopic rod 13 can move synchronously with the moving template 6. The front part of the receiving plate 9 is slidably connected inside the moving template 6. The top of the ejector template 5 is provided with telescopic holes 16 distributed front and back. The receiving plate 9 passes through the telescopic holes 16, which provide a channel for the receiving plate 9 to pass through the ejector template 5. The moving template 6 is provided with shrinkage grooves 17 distributed front and back. The front part of the receiving plate 9 is slidably connected inside the shrinkage grooves 17. The shrinkage grooves 17 are the sliding tracks of the front part of the receiving plate 9 after shrinkage. The fixed template 2 is provided with limiting telescopic grooves 11 distributed front and back. The rear part of the receiving plate 9 is slidably connected inside the limiting telescopic grooves 11. The limiting plate 10 is slidably connected inside the limiting telescopic grooves 11. The limiting telescopic grooves 11 provide a dedicated sliding space for the rear part of the receiving plate 9 and the limiting plate 10. At the same time, the maximum sliding range of the receiving plate 9 is limited by the length of the groove.

[0036] Reference Figure 2 and Figure 3Support blocks 20, distributed front and rear, are fixedly connected to the top of the moving template 6 and the top and bottom of the moving template base plate 8. The support blocks 20 serve as the mounting carriers for the cylinders 19. The cylinders 19 are fixedly connected to the opposite side of the support blocks 20. The cylinders 19 are the power source for the demolding template 5, providing a stable driving force for the demolding action of the demolding template 5. A connecting block 21 is fixedly connected to the driving end of the cylinder 19. The connecting block 21 connects the cylinder 19 to the fixed plate 22, and can smoothly transmit the driving force of the cylinder 19 to the fixed plate 22. The fixed plate 22 is fixedly connected to the bottom side of the connecting block 21. The fixed plate 22 is fixedly connected to the outside of the demolding template 5 and is bolted to the demolding template. 5. Fixed, so that the driving force can be evenly applied to the ejector plate 5, ensuring the force balance of the ejector plate 5. Multiple evenly distributed water inlets 4 are opened on the outer side of the fixed plate 2 and the moving plate 6. The water inlets 4 introduce cooling water into the cooling water channel inside the mold, shortening the product cooling time. The right side of the fixed mold base plate 1 is provided with a gating port 3, which is the channel for molten plastic to enter the cavity. Multiple evenly distributed guide pillars 18 are installed inside the moving mold support plate 7. The guide pillars 18 penetrate through the fixed plate 2, the ejector plate 5 and the moving plate 6. The guide pillars 18 play a precise guiding role in the opening and closing of the mold, ensuring the accurate relative position of the fixed plate 2, the ejector plate 5 and the moving plate 6.

[0037] Working principle: When the mold is working, the injection molding machine first drives the moving mold base plate 8 to move the moving mold support plate 7 and the moving mold plate 6 towards the fixed mold side. Under the precise guidance of the guide column 18, the fixed mold plate 2 and the moving mold plate 6 are tightly closed to form a closed cavity that matches the shape of the outer cylinder of the striped trash can. At this time, the molten plastic is injected into the cavity through the sprue 3 on the right side of the fixed mold base plate 1. At the same time, the cooling water enters the internal water channel through the water inlet 4 on the outside of the fixed mold plate 2 and the moving mold plate 6, which quickly removes the heat generated by injection and allows the plastic to cool and solidify in the cavity. During the mold closing process, the receiving component adjusts its position synchronously with the closing of the moving mold plate 6 and the fixed mold plate 2. The telescopic tube 12 and the telescopic rod 13 retract within the receiving plate 9 to ensure that they do not interfere with the cavity closing. The first limit block 14 and the second limit block 15 limit the excessive contraction of the telescopic components to ensure structural stability.

[0038] After the product is finalized, it enters the mold opening stage. The injection molding machine drives the moving mold base plate 8, the moving mold support plate 7, and the moving mold plate 6 to move to the left. The fixed mold plate 2 separates from the moving mold plate 6. At this time, the cylinder 19 is activated, and through the connecting block 21 and the fixing plate 22, it drives the ejector plate 5 to push towards the fixed mold side, so that the outer cylinder is smoothly ejected from the cavity of the moving mold plate 6. The telescopic rod 13 pulls the telescopic tube 12 synchronously with the moving mold plate 6, so that the front part of the receiving plate 9 slides along the shrinkage groove 17 of the moving mold plate 6, and the rear part extends along the limiting telescopic groove 11 of the fixed mold plate 2, passing through the telescopic hole 16 of the ejector plate 5 to the bottom of the outer cylinder. The limiting plate 10 limits the maximum extension distance of the receiving plate 9. Finally, the receiving plate 9 stably receives the outer cylinder after demolding, completing one injection molding cycle.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An injection mold for an external outer cylinder of a striped trash can, comprising a fixed mold base plate (1), characterized in that: A fixed template (2) is installed on the left side of the fixed template (1), a stripping template (5) is provided on the left side of the fixed template (2), a moving template (6) is provided on the left side of the stripping template (5), a moving template support plate (7) is provided on the left side of the moving template (6), a moving template base plate (8) is provided on the left side of the moving template support plate (7), and a front and rear material receiving component is fixedly connected to the bottom side inside the fixed template (2); The receiving assembly includes receiving plates (9) distributed front and back. The rear of the receiving plate (9) is slidably connected to the inside of the fixed template (2). A limiting plate (10) is fixedly connected to the rear side of the receiving plate (9). A telescopic tube (12) is slidably connected inside the receiving plate (9). A first limiting block (14) distributed front and back is fixedly connected to the outside of the telescopic tube (12). A telescopic rod (13) is slidably connected inside the telescopic tube (12). A second limiting block (15) distributed front and back is fixedly connected to the outside of the telescopic rod (13).

2. The injection mold for the outer cylinder of a striped trash can according to claim 1, characterized in that: The top of the moving template (6) and the top and bottom of the moving template base plate (8) are fixedly connected to support blocks (20) distributed in front and behind. A cylinder (19) is fixedly connected to the opposite side of the support block (20). A connecting block (21) is fixedly connected to the driving end of the cylinder (19). A fixing plate (22) is fixedly connected to the bottom side of the connecting block (21). The fixing plate (22) is fixedly connected to the outside of the stripping template (5).

3. The injection mold for the outer cylinder of a striped trash can according to claim 1, characterized in that: Multiple evenly distributed water inlets (4) are provided on the outer side of the fixed template (2) and the moving template (6), and a pouring port (3) is provided on the right side of the fixed template base plate (1).

4. The injection mold for the outer cylinder of a striped trash can according to claim 1, characterized in that: The moving mold support plate (7) is equipped with a plurality of evenly distributed guide columns (18), which penetrate the interior of the fixed mold plate (2), the release mold plate (5) and the moving mold plate (6).

5. The injection mold for the outer cylinder of a striped trash can according to claim 1, characterized in that: The telescopic rod (13) is fixedly connected inside the moving template (6), and the front part of the receiving plate (9) is slidably connected inside the moving template (6).

6. The injection mold for the outer cylinder of a striped trash can according to claim 1, characterized in that: The top of the template (5) is provided with telescopic holes (16) distributed front and back, and the receiving plate (9) passes through the telescopic holes (16).

7. The injection mold for the outer cylinder of a striped trash can according to claim 1, characterized in that: The moving template (6) has front and rear distributed shrinkage grooves (17) inside, and the front part of the receiving plate (9) is slidably connected in the shrinkage grooves (17).

8. The injection mold for the outer cylinder of a striped trash can according to claim 1, characterized in that: The template (2) has front and rear distributed limiting expansion grooves (11) inside. The rear part of the receiving plate (9) is slidably connected in the limiting expansion groove (11), and the limiting plate (10) is slidably connected in the limiting expansion groove (11).

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