Cutting tool for detecting heat sealing strength of soft plastic infusion bag

Abstract

The utility model belongs to the technical field of soft plastic infusion bag heat seal strength detection devices, and particularly relates to a cutting tool for soft plastic infusion bag heat seal strength detection. First sliding rods are fixedly connected to the four corners of the upper end face of a bottom plate, and sliding plates and pressing plates are slidably connected to the outer walls of the four first sliding rods; the upper end face of the pressing plate is fixedly connected with two second sliding rods, the two second sliding rods both extend to the position above the sliding plate and are fixedly connected with second limiting blocks, the outer walls of the two second sliding rods are both sleeved with second springs, and the upper end face of the sliding plate is fixedly connected with a plurality of mounting plates through fixing bolts. And the lower end surfaces of the plurality of mounting plates are fixedly connected with cutting knives. According to the utility model, a plurality of cutting knives are used for simultaneously cutting the soft plastic infusion bag, so that the cutting efficiency is improved; in addition, during cutting, the soft plastic infusion bag is firstly fixed through the pressing plate and then is cut, so that neat cutting is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of soft plastic infusion bag heat-sealing strength detection devices, in particular to a cutting tool for detecting the heat-sealing strength of a soft plastic infusion bag. Background Art

[0002] Compared to traditional glass packaging, soft plastic infusion bags offer significant advantages in terms of environmental friendliness, cost, hygiene, safety, and ease of use. They have already captured a significant market share in developed countries in Europe and the United States. While fierce competition persists between soft plastic infusion bags and soft plastic infusion bottles, the trend toward soft plastic packaging for injectables is undeniable. Due to this material change, ensuring the safety of injectables contained in soft plastic infusion bags requires targeted performance testing that differs from that of traditional infusion bottles.

[0003] Heat seal strength testing is one such test. After the soft plastic infusion bag is processed, the material is stretched until the heat seal is completely opened. The ratio of the maximum tensile force and the length of the heat seal is the material's heat seal strength. Heat seal strength testing is not performed on the entire soft plastic infusion bag, but rather based on the relevant dimensions specified in the testing standard. This requires cutting the soft plastic infusion bag to obtain sample strips, typically using a cutting device.

[0004] Existing cutting devices require multiple cuts to obtain a sufficient number of sample strips when cutting soft plastic infusion bags, which is cumbersome, time-consuming and labor-intensive, and has low cutting efficiency. In addition, the existing cutting devices cannot limit the soft plastic infusion bags during use, which easily leads to uneven cutting and affects the stretching effect. Summary of the Invention

[0005] The utility model provides a cutting tool for testing the heat-sealing strength of soft plastic infusion bags, which cuts the soft plastic infusion bags simultaneously by using multiple cutting knives, thereby improving the cutting efficiency. In addition, when cutting, the soft plastic infusion bag is first fixed by a pressing plate before cutting, so as to ensure neat cutting.

[0006] The utility model is implemented as follows: a cutting tool for testing the heat-sealing strength of a soft plastic infusion bag comprises a base plate, wherein the four corners of the upper end face of the base plate are fixedly connected to a first sliding rod, the outer walls of the four first sliding rods are slidably connected to a slide plate and a pressure plate, the upper end face of the pressure plate is fixedly connected to two symmetrically distributed second sliding rods, the two second sliding rods are slidably connected to the slide plate and extend to the top of the slide plate and are fixedly connected to a second limit block, the outer walls of the two second sliding rods are sleeved with a second spring, the upper end face of the slide plate is fixedly connected to multiple mounting plates by fixing bolts, the lower end faces of the multiple mounting plates are fixedly connected to cutting knives, the multiple cutting knives extend to the bottom of the slide plate, and the outer wall of the pressure plate is provided with multiple through holes matching the cutting knives.

[0007] In order to facilitate lifting the pressure plate, as a preferred cutting tool for testing the heat sealing strength of a soft plastic infusion bag of the present invention, the upper end faces of multiple first sliding bars are fixedly connected with a first limit block, the outer walls of multiple first sliding bars are sleeved with a first spring, the upper ends of multiple first springs are respectively fixedly connected to the four first limit blocks, and the lower ends of multiple first springs are fixedly connected to the slide board.

[0008] In order to facilitate the extension of the cutting knife to the bottom of the slide, as a preferred cutting tool for testing the heat seal strength of a soft plastic infusion bag of the present invention, a plurality of mounting holes are opened through the outer wall of the slide.

[0009] In order to facilitate cutting of the soft plastic infusion bag, as a preferred cutting tool for testing the heat seal strength of the soft plastic infusion bag of the present invention, the upper end surface of the bottom plate is provided with a plurality of cutting grooves matching the cutting knife.

[0010] In order to facilitate the downward pressing of the slide plate, as a preferred cutting tool for testing the heat seal strength of a soft plastic infusion bag of the present invention, both left and right end surfaces of the slide plate are fixedly connected with handles.

[0011] In order to increase the friction between the bottom plate and the table top, as a preferred cutting tool for testing the heat seal strength of a soft plastic infusion bag of the present invention, a rubber pad is provided on the lower end surface of the bottom plate.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The utility model uses the cooperation of the first sliding rod, the slide plate, the pressure plate, the first limiting block, the first spring, the second sliding rod, the second spring and the second limiting block to cut the soft plastic infusion bag. When cutting the soft plastic infusion bag, the soft plastic infusion bag is first fixed by the pressure plate and then cut to ensure neat cutting. The soft plastic infusion bag is cut simultaneously by multiple cutting knives, thereby improving cutting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the mounting hole of the utility model;

[0017] Figure 3 This is a schematic diagram of the three-dimensional structure of the cutting knife of the utility model.

[0018] In the figure: 1. Base plate; 2. First slide bar; 3. Slide plate; 4. Pressing plate; 5. Cutting groove; 6. Through hole; 7. Mounting hole; 8. Mounting plate; 9. Cutting knife; 10. Fixing bolt; 11. First limit block; 12. First spring; 13. Second slide bar; 14. Second spring; 15. Second limit block; 16. Handle; 17. Rubber pad. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0020] In the description of the present invention, it should be understood that the terms "length," "width," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," and the like, indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, in the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

[0021] See also Figure 1-3 , a cutting tool for testing the heat seal strength of a soft plastic infusion bag, comprising a base plate 1, the four corners of the upper end surface of the base plate 1 are fixedly connected to a first slide bar 2, the outer walls of the four first slide bars 2 are slidably connected to a slide plate 3 and a pressing plate 4, the upper end surface of the pressing plate 4 is fixedly connected to two symmetrically distributed second slide bars 13, the two second slide bars 13 are slidably connected to the slide plate 3 and extend to the top of the slide plate 3 and are fixedly connected to a second limit block 15, the outer walls of the two second slide bars 13 are sleeved with a second spring 14, the upper end surface of the slide plate 3 is fixedly connected to a plurality of mounting plates 8 by fixing bolts 10, the lower end surfaces of the plurality of mounting plates 8 are fixedly connected to a cutting knife 9, the plurality of cutting knives 9 extend to the bottom of the slide plate 3, and the outer wall of the pressing plate 4 is provided with a plurality of through holes 6 matching the cutting knife 9.

[0022] In this embodiment, when cutting a soft plastic infusion bag, the soft plastic infusion bag is placed on the bottom plate 1, and the two handles 16 are used to press the slide plate 3 downward, causing the slide plate 3 to slide downward along the first slide bar 2 and stretch the first spring 12. As the slide plate 3 slides downward, the second slide bar 13 and the second spring 14 drive the pressing plate 4 to slide downward along the first slide bar 2, causing the pressing plate 4 to press on the soft plastic infusion bag and secure it. The slide plate 3 continues to move downward, driving the cutting blade 9 through the mounting plate 8 to continue to move downward, thereby passing through the through hole 6 and inserting into the cutting groove 5 to cut the soft plastic infusion bag. The utility model uses multiple cutting blades 9 to cut the soft plastic infusion bag simultaneously, thereby improving cutting efficiency. When cutting, the soft plastic infusion bag is first secured by the pressing plate 4 before cutting to ensure a neat cut.

[0023] As a technical optimization solution of the present invention, the upper end surfaces of multiple first sliding rods 2 are fixedly connected with the first limit blocks 11, the outer walls of multiple first sliding rods 2 are sleeved with first springs 12, the upper ends of multiple first springs 12 are respectively fixedly connected to the four first limit blocks 11, and the lower ends of multiple first springs 12 are fixedly connected to the slide plate 3.

[0024] In this embodiment, when the cutting is completed and the handle 16 is released, the slide plate 3 is automatically lifted up under the elastic force of the first spring 12, so that the pattern strip can be taken out easily.

[0025] As a technical optimization solution of the present invention, a plurality of mounting holes 7 are formed through the outer wall of the slide plate 3 .

[0026] In this embodiment, a plurality of mounting holes 7 are formed through the outer wall of the slide plate 3 , so that the cutting blade 9 can be extended to the bottom of the slide plate 3 .

[0027] As a technical optimization solution of the present invention, a plurality of cutting grooves 5 matching the cutting blades 9 are provided on the upper end surface of the bottom plate 1 .

[0028] In this embodiment, a plurality of cutting grooves 5 matching the cutting knife 9 are provided on the upper end surface of the bottom plate 1 , so as to facilitate the cutting of the soft plastic infusion bag in cooperation with the cutting knife 9 .

[0029] As a technical optimization solution of the present invention, handles 16 are fixedly connected to both left and right end surfaces of the slide plate 3 .

[0030] In this embodiment, by fixing the handles 16 on both the left and right end surfaces of the slide plate 3 , it is convenient to press down the slide plate 3 through the handles 16 , saving time and effort.

[0031] As a technical optimization solution of the present invention, a rubber pad 17 is provided on the lower end surface of the bottom plate 1 .

[0032] In this embodiment, a rubber pad 17 is provided on the lower end surface of the bottom plate 1 to increase the friction between the bottom plate 1 and the desktop, thereby preventing the present invention from sliding.

[0033] The working principle and usage process of the present invention are as follows: When using the present invention to cut a soft plastic infusion bag, the soft plastic infusion bag is first placed on the base plate 1. The two handles 16 are then used to press the slide plate 3 downward. The slide plate 3 slides downward along the first slide bar 2 and stretches the first spring 12. As the slide plate 3 slides downward, the second slide bar 13 and the second spring 14 drive the pressing plate 4 to slide downward along the first slide bar 2, pressing the pressing plate 4 against the soft plastic infusion bag to secure it. The continued downward movement of the slide plate 3 drives the cutting blade 9 to continue to move downward through the mounting plate 8, thereby passing through the through hole 6 and inserting into the cutting groove 5 to cut the soft plastic infusion bag. After the cutting is completed, the handle 16 is released, and the slide plate 3 is automatically lifted under the elastic force of the first spring 12. The sample strip can then be removed. The present invention uses multiple cutting blades 9 to cut the soft plastic infusion bag simultaneously, thereby improving cutting efficiency. Moreover, when cutting, the soft plastic infusion bag is first secured by the pressing plate 4 before cutting to ensure a neat cut.

[0034] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A cutting tool for testing the heat seal strength of a soft plastic infusion bag, comprising a bottom plate (1), characterized in that: The four corners of the upper end surface of the base plate (1) are fixedly connected with a first slide bar (2), the outer walls of the four first slide bars (2) are slidably connected with a slide plate (3) and a pressure plate (4), the upper end surface of the pressure plate (4) is fixedly connected with two symmetrically distributed second slide bars (13), the two second slide bars (13) are slidably connected to the slide plate (3) and extend to the top of the slide plate (3) and are fixedly connected with a second limit block (15), the outer walls of the two second slide bars (13) are sleeved with a second spring (14), the upper end surface of the slide plate (3) is fixedly connected with a plurality of mounting plates (8) through fixing bolts (10), the lower end surfaces of the plurality of mounting plates (8) are fixedly connected with a cutting knife (9), the plurality of cutting knives (9) extend to the bottom of the slide plate (3), and the outer wall of the pressure plate (4) is provided with a plurality of through holes (6) matching the cutting knives (9).

2. The cutting tool for testing the heat seal strength of a soft plastic infusion bag according to claim 1, characterized in that: The upper end surfaces of the plurality of first slide bars (2) are fixedly connected to the first limit blocks (11), the outer walls of the plurality of first slide bars (2) are sleeved with first springs (12), the upper ends of the plurality of first springs (12) are respectively fixedly connected to the four first limit blocks (11), and the lower ends of the plurality of first springs (12) are fixedly connected to the slide plate (3).

3. The cutting tool for testing the heat seal strength of a soft plastic infusion bag according to claim 1, characterized in that: A plurality of mounting holes (7) are formed through the outer wall of the slide plate (3).

4. The cutting tool for testing the heat seal strength of a soft plastic infusion bag according to claim 1, characterized in that: The upper end surface of the bottom plate (1) is provided with a plurality of cutting grooves (5) matching the cutting blades (9).

5. The cutting tool for testing the heat seal strength of a soft plastic infusion bag according to claim 1, characterized in that: The left and right end surfaces of the slide plate (3) are both fixedly connected with handles (16).

6. The cutting tool for testing the heat seal strength of a soft plastic infusion bag according to claim 1, characterized in that: The lower end surface of the bottom plate (1) is provided with a rubber pad (17).

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