Large-water-gap preservation box cover mold

Abstract

The utility model relates to the technical field of box cover molds, in particular to a large-water-gap preservation box cover mold which comprises a preservation box cover mold body, a stroke guide rail module and a material taking suction cup claw, and the preservation box cover mold body comprises an upper cavity, a lower cavity and a mold cavity located between the upper cavity and the lower cavity. Water gap trimming equipment used for trimming water gaps in the preservation box cover mold is arranged on the two sides of the mold cavity, the water gap trimming equipment comprises a driving assembly, a fixing plate, a limiting stroke strip and a trimming part, the trimming part comprises a trimming fixing frame, trimming cutters are symmetrically connected to the outer walls of the two sides, close to one end, of the trimming fixing frame, and the trimming cutters are of a Z-shaped structure; according to the large-water-gap preservation box cover mold, the mode that the water gap is automatically trimmed through the scraper is adopted, the problems of shear marks and unevenness caused by traditional manual trimming and scissor type shearing can be avoided, the product quality is improved, and the large-water-gap preservation box cover mold is suitable for large-scale production.

Description

Technical Field

[0001] This utility model relates to the field of box lid mold technology, specifically a large-mouth food preservation box lid mold. Background Technology

[0002] A food storage container lid is a lid used to cover a food storage container. Its main function is to keep the food inside the container fresh and hygienic.

[0003] The large-diameter mold for food storage container lids is used to produce food storage container lids. Its characteristic is that the front mold is not separately shaped, and it is usually called a two-plate mold.

[0004] For food storage container lids that currently use large sprue gates for glue injection, after injection molding, there are generally two methods: manual removal of the sprue gate and machine shearing to remove the sprue gate. Manual production is inefficient and cannot achieve fully automated production. The machine shearing method involves placing the food storage container lid in front of the shearing blade for shearing. However, the shearing blade easily leaves shearing marks and uneven cuts, requiring secondary trimming. Utility Model Content

[0005] The purpose of this utility model is to provide a mold for a large-mouth food storage box lid to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A large-sprue food storage container lid mold includes a food storage container lid mold, a travel guide rail module, and a material-picking suction cup claw. The food storage container lid mold includes an upper cavity, a lower cavity, and a cavity located between the upper cavity and the lower cavity. Sprue trimming devices for trimming the sprue on the food storage container lid mold are provided on both sides of the cavity.

[0008] As a preferred embodiment of this utility model, the travel guide module includes a horizontal electric displacement guide rail, on which a slider is slidably disposed. A first telescopic rod is connected to the outer wall of the slider via a fixing frame. The bottom of the first telescopic rod is connected to the bottom of the material-picking suction cup claw. The suction cup on the material-picking suction cup claw is connected to an external air supply device via a high-pressure conduit.

[0009] As a preferred embodiment of this utility model, the sprue trimming device includes a drive assembly, a fixed plate, a limiting travel bar, and a trimming component. The limiting travel bars are symmetrically located on the outer wall of the fixed plate near its outer edge. A displacement sliding block is slidably disposed between the two limiting travel bars on the outer wall of the fixed plate, and a travel rod is connected through the displacement sliding block.

[0010] As a preferred embodiment of this utility model, the trimming component includes a trimming frame, and trimming scissors are symmetrically connected to the outer walls on both sides near one end of the trimming frame, and the trimming scissors are arranged in a Z-shaped structure.

[0011] As a preferred embodiment of this utility model, the driving assembly includes a trimming telescopic rod, which is fixedly located on the outer wall of the fixed plate, and the output end of the trimming telescopic rod is connected to the outer wall of the trimming frame away from the trimmer blades via a stroke rod.

[0012] As a preferred embodiment of this utility model, the distance between the two trimmers on the trimming frame is the same as the distance between the two food storage lids on the cavity.

[0013] As a preferred embodiment of this utility model, during trimming, the outer wall of the end of the trimmer abuts against the outer wall of the food storage container lid.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In response to the problems mentioned in the background art, the large sprue food storage container lid mold of this application adopts an automatic scraper to trim the sprue, which can avoid the cutting marks and unevenness caused by traditional manual trimming and scissor cutting, thereby improving product quality. The design of the large sprue food storage container lid mold is very suitable for mass production, especially in scenarios that require high efficiency and high quality output.

[0016] The sprue trimming device is used to automatically trim the sprues on the lids of food storage containers. It includes a drive assembly, a fixed plate, a limit travel bar, a displacement sliding block, a travel rod, and a trimming component. The trimming component has a fixed plate and trimming scissors arranged in a Z-shape. The drive assembly includes a trimming telescopic rod, which is fixed to the outer wall of the fixed plate. Its output end is connected to the outer wall of the fixed plate at the end away from the trimming scissors. The distance between the two trimming scissors on the fixed plate is the same as the distance between the sprues on the two food storage container lids in the cavity. This ensures that each food storage container lid can be trimmed accurately. During the trimming process, through the extension and retraction of the trimming telescopic rod, the outer wall of the trimming scissor end abuts against the outer wall of the food storage container lid, which ensures the flatness and precision of the trimming.

[0017] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0018] Figure 1 This is a perspective view of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram showing the disassembly of the mold for the food storage container lid of this utility model;

[0020] Figure 3This is a schematic diagram of the horizontal electric displacement guide rail of this utility model;

[0021] Figure 4 This is a schematic diagram of the water outlet trimming device of this utility model;

[0022] Figure 5 This is a schematic diagram of the trimming component of this utility model.

[0023] In the diagram: 1. Food storage container lid mold; 11. Upper cavity; 12. Lower cavity; 13. Cavity; 2. Travel guide module; 21. Horizontal electric displacement guide rail; 22. Slider; 23. Fixing frame; 24. First telescopic rod; 3. Material picking suction cup claw; 4. Sprue trimming equipment; 41. Fixing plate; 42. Limiting travel bar; 43. Displacement sliding block; 44. Trimming component; 441. Trimming frame; 442. Trimming shears; 45. Travel rod; 46. Trimming telescopic rod. Detailed Implementation

[0024] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive. Example

[0025] Please see Figure 1-5 This utility model provides a technical solution: a large-sprue food storage box lid mold, including a food storage box lid mold 1, a travel guide rail module 2, and a material-picking suction cup claw 3. The food storage box lid mold 1 includes an upper cavity 11, a lower cavity 12, and a cavity 13 located between the upper cavity 11 and the lower cavity 12. Sprue trimming devices 4 for trimming the sprue on the food storage box lid mold 1 are provided on both sides of the cavity 13. The travel guide rail module 2 includes a horizontal electric displacement guide rail 21, and a slider 22 is slidably arranged on the horizontal electric displacement guide rail 21. A first telescopic rod 24 is connected to the outer wall of the slider 22 through a fixing frame 23. The bottom of the first telescopic rod 24 is connected to the bottom of the material-picking suction cup claw 3. The suction cup on the material-picking suction cup claw 3 is connected to an external air supply device through a high-pressure conduit.

[0026] It should be noted that, in this embodiment, the upper cavity 11 and the lower cavity 12 of the food storage box lid mold 1 together constitute the main structure of the mold and are used to form the shape of the food storage box lid. The cavity 13 is located between the upper cavity 11 and the lower cavity 12 and is the space for actually forming the food storage box lid.

[0027] Furthermore, the sprue trimming device 4 is set on both sides of the cavity 13 to automatically trim the sprues formed during the injection molding process, ensuring the appearance quality and consistency of the product. The horizontal electric displacement guide rail 21 of the stroke guide rail module 2 provides precise horizontal movement so that the slider 22 can be positioned above or inside the mold. The slider 22 slides on the horizontal electric displacement guide rail 21, driving the material-picking suction cup claw 3 to move precisely. The fixing frame 23 connects the slider and the first telescopic rod 24, and the first telescopic rod 24 is connected to the material-picking suction cup claw 3, so that it can extend and retract in the vertical direction to adapt to the material picking needs of different heights. It is connected to the external air supply equipment through the high-pressure conduit and uses suction to grab the formed food storage box lid.

[0028] After the injection filling inside cavity 13 is completed and the mold is opened, the ejector pins inside cavity 13 do not perform the unmolding work. At this time, the sprue trimming device 4 first trims the sprue on the food storage container lid. After the trimming is completed, the sprue falls off. At this time, the material-retrieving suction cup 3 reaches the outer wall of the food storage container lid. At this time, the ejector pin performs the unmolding work, pushing the food storage container lid out towards the material-retrieving suction cup 3. The material-retrieving suction cup 3 picks up the food storage container lid and retrieves the material.

[0029] Furthermore, the entire system is designed for automated operation, from injection molding to sprue trimming and material handling, reducing manual intervention and improving production efficiency. Through precise control of the stroke guide module, the material handling suction cup claw 3 can be precisely positioned to ensure the accuracy of each material handling operation. The automatic scraper trimming function ensures that the sprue of each food storage container lid can be trimmed evenly and accurately, improving the appearance quality and consistency of the product.

[0030] Please see Figure 1 , 4 The sprue trimming device 4 includes a drive assembly, a fixed plate 41, limit travel bars 42, and trimming components 44. The limit travel bars 42 are symmetrically located on the outer wall of the fixed plate 41 near its outer edge. A displacement sliding block 43 is slidably arranged between the two limit travel bars 42 on the outer wall of the fixed plate 41, and a travel rod 45 is connected through the displacement sliding block 43. The trimming component 44 includes a trimming frame 441, and trimming shears 442 are symmetrically connected on the outer walls of the trimming frame 441 near one end. The trimming shears 442 are arranged in a Z-shaped structure. The drive assembly includes a trimming telescopic rod 46, which is fixedly located on the outer wall of the fixed plate 41. The output end of the trimming telescopic rod 46 is connected to the outer wall of the trimming frame 441 away from the trimming shears 442 through the travel rod 45. The distance between the two trimming shears 442 on the trimming frame 441 is the same as the distance between the two food storage lids on the cavity 13. During trimming, the outer wall of the end of the trimming shears 442 abuts against the outer wall of the food storage lid.

[0031] It should be noted that in this embodiment, the sprue trimming device 4 is used to automatically trim the sprues on the lids of food storage containers. It includes a drive assembly, a fixed plate 41, a limit travel bar 42, a displacement sliding block 43, a travel rod 45, and a trimming component 44. The trimming component 44 has a fixed plate 441 and trimming scissors 442 arranged in a Z-shaped structure. The drive assembly includes a trimming telescopic rod 46, which is fixed to the outer wall of the fixed plate 41. Its output end is connected to the outer wall of the fixed plate 441 away from the trimming scissors 442. The distance between the two trimming scissors 442 on the fixed plate 441 is the same as the distance between the sprues on the two lids of the food storage container on the cavity 13. This ensures that each lid of the food storage container can be trimmed accurately. During the trimming process, through the extension and retraction of the trimming telescopic rod 46, the outer wall of the end of the trimming scissors 442 abuts against the outer wall of the lid of the food storage container, which ensures the flatness and accuracy of the trimming.

[0032] Furthermore, the telescopic rod 46 serves as the drive source, providing power to make the trimmer 44 move as necessary to achieve precise trimming of the sprue. The fixed plate 41 serves as the installation base for the entire trimming equipment, providing a stable support structure for other components. The limit stroke bars 42 are symmetrically arranged on the outer wall of the fixed plate 41 near the outer edge, providing a sliding track for the displacement sliding block 43 to ensure its stable movement in the horizontal direction and guarantee the trimming motion trajectory. The displacement sliding block 43 slides between the limit stroke bars 42 and is connected to the trimming frame 441 through the stroke rod 45, transmitting the power of the drive assembly so that the trimmer can move accurately to the sprue position. The stroke rod 45 connects the displacement sliding block 43 and the trimming frame 441, converting the linear movement of the displacement sliding block 43 into the precise displacement of the trimming frame.

[0033] The trimming stand 441 serves as the mounting platform for the trimming shears 442, ensuring the stability and correct positioning of the trimming shears. The trimming shears 442 have a Z-shaped structure and are designed for efficient and precise cutting of the sprue on the lid of the food storage container. Their shape helps to reduce interference with the product body during the cutting process.

[0034] By precisely controlling the telescopic rod 46 and combining the linkage mechanism of the stroke rod 45 and the displacement sliding block 43, the trimming shears 442 can be accurately aligned with and fit the sprue position on the food storage container lid. The distance between the two trimming shears 442 matches the distance between the sprue and the sprue of the food storage container lid inside the cavity 13, ensuring the consistency and uniformity of each trimming. The entire trimming process is automatically controlled by the system, reducing the need for manual operation, improving production efficiency and safety. Automatic trimming avoids the unevenness or damage that may be caused by manual cutting, improving the appearance quality and market competitiveness of the final product.

[0035] The working process of this utility model:

[0036] During use, injection molding is performed in cavity 13. The plastic material is injected and cooled to form the basic shape of the food storage container lid. After injection molding, the mold is opened, and the sprue trimming device 4 is activated to automatically trim the sprues on the food storage container lid. The trimming telescopic rod 46 drives the trimming piece 44 to move, so that the trimming shears 442 are accurately aligned with and fit the sprue position on the food storage container lid. The trimming shears 442 have a Z-shaped structure, designed for efficient and precise removal of sprues, reducing interference with the product body. The distance between the two trimming shears 442 matches the distance between the sprues on the food storage container lid in cavity 13, ensuring consistency and uniformity in each trimming. After the sprue trimming is completed, the material suction cup claw 3 moves through the mold. The travel guide module 2 moves to the position of the food storage container lid. The horizontal electric displacement guide 21 of the travel guide module provides precise horizontal movement. The slider 22 drives the material-picking suction cup claw 3 to the designated position. The suction cup on the material-picking suction cup claw 3 is connected to an external air supply device through a high-pressure conduit. It uses suction to grab the molded food storage container lid. The ejector pin further pushes the food storage container lid towards the material-picking suction cup claw 3 to ensure that the suction cup can firmly pick up the food storage container lid. After the material-picking suction cup claw 3 picks up the food storage container lid, it is removed from the mold, completing the material picking process. The system returns to the initial state and prepares for the next injection molding, trimming and material picking operation. The whole process is automatically controlled by the system, reducing manual intervention and improving production efficiency and safety.

[0037] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A large water gap preservation box cover mold, comprising a preservation box cover mold (1), a stroke guide rail module (2) and a material taking suction cup claw (3), characterized in that: The fresh-keeping box cover mold (1) comprises an upper cavity (11), a lower cavity (12) and a cavity (13) between the upper cavity (11) and the lower cavity (12), and water port trimming equipment (4) is arranged on both sides of the cavity (13) for trimming the water port on the fresh-keeping box cover mold (1).

2. A large spout preservation box cover mold according to claim 1, characterized in that: The stroke guide module (2) comprises a horizontal electric displacement guide rail (21), a sliding block (22) is arranged on the horizontal electric displacement guide rail (21), a first telescopic rod (24) is connected to the outer wall of the sliding block (22) through a fixing frame (23), the bottom of the first telescopic rod (24) is connected to the bottom of the material taking suction cup claw (3), and the suction cup on the material taking suction cup claw (3) is connected to an external gas supply device through a high-pressure conduit.

3. A large spout crisper cover mold as defined in claim 1, wherein: The water port trimming equipment (4) comprises a driving assembly, a fixed plate (41), a limiting stroke strip (42) and a trimming piece (44), the limiting stroke strips (42) are symmetrically arranged on the outer wall of the fixed plate (41) near the outer edge, a displacement sliding block (43) is arranged between the two limiting stroke strips (42) on the outer wall of the fixed plate (41), and a stroke rod (45) is connected to the displacement sliding block (43).

4. A large spout crisper cover mold as defined in claim 3, wherein: The trimming piece (44) comprises a trimming support (441), trimming knives (442) are symmetrically connected to the outer walls on both sides of one end of the trimming support (441), and the trimming knives (442) are arranged in a Z-shaped structure.

5. A large spout crisper cover mold as defined in claim 4, wherein: The driving assembly comprises a trimming telescopic rod (46), the trimming telescopic rod (46) is fixed to the outer wall of the fixed plate (41), and the output end of the trimming telescopic rod (46) is connected to the outer wall of one end of the trimming support (441) away from the trimming knives (442) through the stroke rod (45).

6. A large spout crisper cover mold as defined in claim 5, wherein: The distance between the two trimming knives (442) on the trimming support (441) is the same as the distance between the two fresh-keeping box covers on the cavity (13).

7. A large spout crisper cover mold as defined in claim 6, wherein: When trimming, the end outer wall of the trimming knife (442) abuts against the outer wall of the fresh-keeping box cover.

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