Tear line die of aluminum-plastic packaging machine

Abstract

The utility model provides a tearing line die of an aluminum plastic packaging machine, which relates to the technical field of packaging machinery and comprises a blade base, a blade fixing plate, a separating plate, a tearing line bottom die, a sliding shaft, a shaft sleeve, a transverse blade, a vertical blade and a spring, and the transverse blade is provided with a blade body gap. The utility model is characterized in that the width of the vertical groove is greater than the thickness of the vertical blade, so that the position of the vertical blade can be adjusted in the vertical groove; the width of the blade body gap of the transverse blade is greater than the thickness of the vertical blade, so that the position of the vertical blade can be adjusted in the blade body gap; the width of the cutter groove is larger than the thickness of the vertical blade. The position of each vertical tearing line can be independently adjusted, the problem of tearing line printing deviation caused by shrinkage difference of packaging materials is solved, and the sealing performance and quality of products are improved.

Description

A tear line mold for aluminum-plastic packaging machines Technical Field

[0001] This utility model relates to the field of packaging machinery technology, specifically to a tear line mold for an aluminum-plastic packaging machine. Background Technology

[0002] Aluminum-plastic packaging machines are automated packaging equipment widely used in industries such as pharmaceuticals and food. Their production process typically involves a combination of multiple molds, including forming molds, feeding molds, heat-sealing molds, batch number printing molds, tear line printing molds, and die-cutting molds. During operation, these molds work together to complete the production process. Generally, when the aluminum-plastic sheet size remains constant and the bubble pattern is the same, to save on mold costs, manufacturers usually only purchase new forming and heat-sealing molds from the equipment manufacturer and then combine them with existing molds.

[0003] In actual production, this method of using mold combinations presents several technical problems. First, the inconsistent heat shrinkage of packaging materials from different suppliers causes variations in the position of the bubble openings in the aluminum-plastic composite sheet, preventing the tear line from being printed correctly in the intended location. This is especially problematic when the distance between the bubble openings is small (only about 3 mm), leading to inadequate packaging seals and quality issues. Second, even different batches of packaging materials from the same supplier can vary, causing material shrinkage and resulting in deviations in the tear line printing position.

[0004] Existing tear line molds have significant limitations, primarily because they can only be adjusted in a general, overall direction, and cannot be adjusted independently for individual tear lines. When a tear line's position deviates significantly, existing mold designs cannot be flexibly adjusted. Furthermore, with frequent changes in packaging material specifications, suppliers, or materials, existing tear line mold designs often struggle to adapt to various situations. Another common problem is the mismatch between the bottom and upper tear line molds, which can easily damage the aluminum composite panel during production. Summary of the Invention

[0005] The purpose of this utility model is to provide a tear line mold for an aluminum-plastic packaging machine, which can independently adjust the position of a single vertical blade to adapt to material heat shrinkage and prevent the tear line from deviating.

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

[0007] A tear line mold for an aluminum-plastic packaging machine includes: a blade base, a blade fixing plate, a separating plate, a tear line bottom mold, a sliding shaft, and a bushing. The blade fixing plate is provided with a blade fixing groove for fixing the blade, and the blade fixing groove includes a vertical groove.

[0008] A horizontal blade and a vertical blade are mounted in the blade fixing groove of the blade fixing plate. The horizontal blade has a blade clearance, and the vertical blade passes through the blade clearance of the horizontal blade and is inserted into the vertical groove.

[0009] The width of the vertical groove is greater than the thickness of the vertical blade, allowing the vertical blade to be positioned within the vertical groove.

[0010] Furthermore, the width of the vertical groove is 2mm-4mm.

[0011] Furthermore, the width of the gap between the horizontal blades is greater than the thickness of the vertical blades, allowing the vertical blades to be adjusted in position within the gap between the blades.

[0012] Furthermore, the blade clearance width of the transverse blade is 2mm-4mm.

[0013] Furthermore, the separating plate is provided with a cutting groove, the width of which is greater than the thickness of the vertical blade.

[0014] Furthermore, the width of the groove in the separating plate is 3mm-5mm.

[0015] Furthermore, it also includes a spring, which is installed between the separating plate and the blade fixing plate.

[0016] Furthermore: the blade base, the blade fixing plate, and the separation plate are fixed together by screws to form a mold on the tear line.

[0017] Furthermore: the bushing is fixed to the blade fixing plate, the sliding shaft is fixed to the tear line bottom mold, and the bushing is connected to the sliding shaft.

[0018] Furthermore, the vertical groove is equipped with stainless steel sheets of different thicknesses to fix the position of the vertical blade.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] I. This utility model solves the technical problem in existing technologies where tear line molds cannot adapt to the differences in thermal shrinkage of different materials by designing the width of the vertical groove in the blade fixing plate to be greater than the thickness of the vertical blade, allowing the position of each vertically printed tear line to be adjusted individually. This adjustable design enables the tear line to be precisely printed at the appropriate position between the bubble openings, ensuring product quality even when packaging materials are changed by suppliers or batches change, through simple positional fine-tuning.

[0021] II. The technical solution of this utility model is particularly suitable for situations where the distance between the two bubble holes is small. By precisely adjusting the position of the vertical blade, it can be ensured that the tear line and the bubble hole always maintain a small and reasonable distance, effectively avoiding the problem of poor sealing of the aluminum-plastic panel caused by the deviation of the tear line position, and significantly improving the sealing performance and product quality of the finished product.

[0022] Third, this utility model provides a simple and easy adjustment method by fixing the position of the vertical blade by configuring stainless steel sheets of different thicknesses in the vertical groove. This allows operators to quickly adjust the mold to adapt to different production needs according to the material shrinkage in actual production, thereby improving production efficiency and reducing downtime caused by mold debugging. Attached Figure Description

[0023] Figure 1 is a schematic diagram of the overall hierarchical structure of this utility model;

[0024] Figure 2 is a schematic diagram of the bottom mold structure of the tear line;

[0025] Figure 3 is an exploded view of the structure between the blade base, the blade fixing plate, and the separation plate.

[0026] Figure 4 is a schematic diagram of the installation structure between the horizontal and vertical blades;

[0027] In the picture:

[0028] 1. Tear line bottom mold; 2. Separation plate; 2.1. Blade groove; 3. Blade fixing plate; 4. Blade base; 5. Bushing; 6. Sliding shaft; 7. Horizontal blade; 7.1. Blade clearance; 8. Vertical blade; 9. Spring. Detailed Implementation

[0029] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] This utility model of a tear line mold for an aluminum-plastic packaging machine mainly comprises a blade base 4, a blade fixing plate 3, a separating plate 2, a tear line bottom mold 1, a sliding shaft 6, a bushing 5, a horizontal blade 7, a vertical blade 8, and a spring 9. The horizontal blade 7 and the vertical blade 8 are installed in the slots of the blade fixing plate 3, and the spring 9 is installed between the separating plate 2 and the blade fixing plate 3. The blade base 4, the blade fixing plate 3, and the separating plate 2 are fixed together by screws to form the tear line mold. The bushing 5, fixed to the blade fixing plate 3, and the sliding shaft 6 of the tear line bottom mold 1 are fitted together to form the entire tear line mold, which is then installed on the tear line mold base of the aluminum-plastic packaging machine.

[0032] The core improvement of this invention lies in the fact that the width of the vertical groove in the blade fixing slot of the blade fixing plate 3 is widened from the traditional 1 mm to 2-4 mm, preferably 2 mm in this embodiment, so that the position of the vertical blade 8 can be adjusted within a limited range. Simultaneously, the blade clearance 7.1 in the horizontal blade 7 is also widened to 2-4 mm, preferably 2 mm in this embodiment; the width of the blade grooves 2.1 and 2.1 in the separating plate 2 is widened from 2 mm to 3-5 mm, preferably 3 mm in this embodiment. These improvements allow the vertical blade 8 to be appropriately adjusted left and right when the horizontal blade 7 and the vertical blade 8 are installed in the slots of the blade fixing plate 3, with the adjustment range being the 2 mm width of the widened vertical groove.

[0033] In practical applications, the shrinkage range of aluminum composite panels during the production process is generally between 0.5 mm and 1 mm, and it exhibits shrinkage from the outside in, with varying degrees of shrinkage at different locations. Therefore, each vertical tear line needs to be individually adjusted to the appropriate position. In this invention, the gaps within the vertical grooves can be filled with stainless steel sheets of different thicknesses to fix the position of the vertical blades 8.

[0034] When the sealed distance between the two bubble holes is only about 3 mm, there must be a gap of about 1.5 mm between the tear line printing position and the bubble hole to ensure the sealing of the aluminum composite panel after production. In other words, the tear line needs to be printed in the middle of the two bubble holes. This utility model, through the above structural improvement, can ensure that the tear line is printed in the correct position, thereby ensuring product quality.

[0035] In terms of working principle, the tear line mold operates in an orderly manner with the running of the aluminum-plastic packaging machine, with the upper tear line mold and the lower tear line mold 1 opening and closing sequentially. When the aluminum-plastic sheet requiring a tear line is pulled to the center of the tear line mold, the mold closes tightly. At this time, the horizontal blade 7 and the vertical blade 8 are squeezed to print, and the aluminum-plastic sheet is printed with a tear line. Afterward, the mold opens, and the separating plate 2, through the action of the spring 9, loosens the engagement between the aluminum-plastic sheet and the blades, and then is pulled out of the center position of the mold. Each row of aluminum-plastic sheets repeats the above actions to complete the production process.

[0036] In a specific implementation case, during the trial run before aluminum-plastic composite (APC) production, the packaging materials were changed from different suppliers. While the forming and heat-sealing molds were altered, the feeding mold, batch number printing mold, tear line printing mold, and punching mold remained unchanged. During the trial run, it was discovered that the tear line printing mold was incompatible. Although the mold was designed to be compatible, observation of the printed tear lines on the APC revealed that the tear lines were deviated outwards, indicating that the packaging material had shrunk inwards. Measurements showed that the shrinkage varied between 0.5 mm and 1 mm.

[0037] Before the modification, the blades of the tear line mold were fixed and could not be adjusted. The design and production of the mold blades were also fixed, thus failing to meet the demands of this production situation. Through the improved solution of this utility model, the width of the vertical groove in the blade fixing slot of the outsourced processing blade fixing plate 3 was widened from 1 mm to 2 mm, while the blade clearance 7.1 in the horizontal blade 7 was also widened to 2 mm, and the width of the blade groove 2.1 in the separating plate 2 was widened from 2 mm to 3 mm. After installing the tear line mold and adjusting the position of the vertical blade 8, normal production was successfully achieved, ensuring the position of the tear line printing and guaranteeing the sealing of the aluminum composite panel.

[0038] Through the above structural improvements, the tear line mold of the aluminum-plastic packaging machine of this utility model can adapt to the heat shrinkage differences of packaging materials from different suppliers and batches, and realize the function of individually adjusting the position of each tear line. This solves the problem of poor product sealing caused by tear line position deviation in the prior art, and improves production efficiency and product quality.

[0039] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent transformations or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A tear line mold for an aluminum-plastic packaging machine, characterized in that, include: The device comprises a blade base, a blade fixing plate, a separation plate, a tear line mold, a sliding shaft, and a bushing. The blade fixing plate has a blade fixing groove for fixing the blade, the blade fixing groove including a vertical groove; a horizontal blade and a vertical blade, the horizontal blade and the vertical blade being installed in the blade fixing groove of the blade fixing plate; the horizontal blade has a blade body gap, the vertical blade passing through the blade body gap of the horizontal blade and inserted into the vertical groove; wherein, the width of the vertical groove is greater than the thickness of the vertical blade, so that the vertical blade can be adjusted in position within the vertical groove.

2. The tear line mold for an aluminum-plastic packaging machine according to claim 1, characterized in that, The width of the vertical groove is 2mm-4mm.

3. The tear line mold for an aluminum-plastic packaging machine according to claim 1, characterized in that, The width of the gap between the horizontal blades is greater than the thickness of the vertical blades, allowing the vertical blades to be adjusted within the gap.

4. The tear line mold for an aluminum-plastic packaging machine according to claim 3, characterized in that, The blade clearance width of the transverse blade is 2mm-4mm.

5. The tear line mold for an aluminum-plastic packaging machine according to claim 1, characterized in that, The separating plate is provided with a cutting groove, the width of which is greater than the thickness of the vertical blade.

6. The tear line mold for an aluminum-plastic packaging machine according to claim 5, characterized in that, The width of the groove in the separating plate is 3mm-5mm.

7. The tear line mold for an aluminum-plastic packaging machine according to claim 1, characterized in that, It also includes a spring, which is installed between the separating plate and the blade fixing plate.

8. The tear line mold for an aluminum-plastic packaging machine according to claim 1, characterized in that, The blade base, the blade fixing plate, and the separation plate are fixed together by screws to form a mold on the tear line.

9. A tear line mold for an aluminum-plastic packaging machine according to claim 1, characterized in that, The bushing is fixed to the blade fixing plate, and the sliding shaft is fixed to the tear line bottom mold. The bushing and the sliding shaft are connected in a mating manner.

10. A tear line mold for an aluminum-plastic packaging machine according to claim 1, characterized in that, The vertical groove is equipped with stainless steel sheets of different thicknesses to fix the position of the vertical blade.

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