A simple cutting tool for two-piece can bottom cutting score

Abstract

The utility model discloses a simple and convenient cutting tool for cutting and gridding the bottom of two-piece can, relates to two-piece can quality detection technical field, including bottom shell and surface shell, the sidewall top of bottom shell is equipped with two hinges symmetrically, two hinge and the sidewall of surface shell are connected, the inner wall of surface shell is provided with a plurality of groups of cutters circumferentially, is commonly provided with the limit seat between two adjacent two groups of cutters, the guide frame is commonly provided with between two limit seats, the gridding assembly is slidably arranged on the guide frame. The utility model discloses through the circumferential distribution of multiple cutting knives, can cut the lower edge bevel of two-piece can fast and accurately, is convenient for observing whether the bottom part of can appears the phenomenon such as whitening, blistering or shrinkage cavity, sets up the same arc as the bottom of two-piece can with support rod, movable plate, can carry out gridding to bottom arch portion fast, ensures the depth of scratch to keep consistent simultaneously, improves the detection precision and detection efficiency of two-piece can coating adhesion force property.

Description

Technical Field

[0001] This utility model relates to the field of two-piece can quality inspection technology, and in particular to a simple cutting tool for cutting and marking the bottom of two-piece cans. Background Technology

[0002] Two-piece cans, as a widely used beverage and food packaging container, are favored by consumers for their lightweight, good sealing, and ease of transportation. Two-piece cans are manufactured using one-piece stamping and stretching forming technology, with a seamless connection between the bottom and the body, which significantly improves sealing and leak-proof performance. Aluminum two-piece cans use a thinning and stretching process to make the can wall lightweight, while also having high barrier properties, light-blocking properties, and easy recycling. In order to protect the can body, a coating is needed to protect the two-piece can, and the adhesion test of the coating is an important indicator of its protective performance.

[0003] Existing testing methods typically employ the cross-cut adhesion test, also known as the 100-grid adhesion test. This involves scoring the surface with a knife, applying 3M tape to the center of each grid, and then gently peeling it off. The degree of paint peeling is observed, and the results are judged by calculating the state of each grid against a standard. However, the use of a handheld cross-cutting knife during testing leads to uneven pressure and varying scratch depths, affecting test accuracy. Furthermore, the grooved bottom of a two-piece can, due to its inherent impact resistance, is highly rigid and difficult to cut with ordinary scissors, making it challenging to control the force applied. Additionally, the sharp edges of the two pieces can easily cut operators, posing a safety hazard. Therefore, this application proposes a simple cutting tool for scoring the bottom of two-piece cans. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies where the scratch depth is inconsistent on the arched surfaces of two can bottoms during the scribing process. This affects the accuracy of coating adhesion testing and poses certain safety hazards during the testing process. Therefore, this invention proposes a simple cutting tool for scribing the bottoms of two cans.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A simple cutting tool for cutting grids on the bottom of two cans includes a bottom shell and a top shell. Two hinges are symmetrically installed on the top of the side wall of the bottom shell. The two hinges are connected to the side wall of the top shell. Multiple sets of cutters are arranged circumferentially on the inner wall of the top shell. A limit seat is provided between two adjacent sets of cutters. A guide frame is provided between two limit seats. A grid-cutting component is slidably arranged on the guide frame. The gridding assembly includes a movable plate, which is configured as an arc-shaped plate. Assembly slots are provided on both sides of the movable plate, and multiple gridding blades are arranged between the two assembly slots. A handle is fixedly installed on the side wall of the movable plate.

[0006] As a further preferred embodiment of this technical solution, a matching groove is provided in the middle of the bottom shell, and a through groove is provided in the middle of the top shell. The positions of the matching groove and the through groove correspond to each other, and the size of the matching groove is equal to the size of the through groove.

[0007] As a further preferred embodiment of this technical solution, a pressing block is installed on the side wall of the bottom shell, and a locking block is installed on the side wall of the top shell, with the pressing block and the locking block corresponding to each other.

[0008] As a further preferred embodiment of this technical solution, the cutting tool includes two symmetrically arranged bases, each base having a cutting blade embedded thereon, and the two cutting blades being inclined relative to the inner wall of the face shell.

[0009] As a further preferred embodiment of this technical solution, the guide frame includes two sliders that are aligned with each other, and two support rods are symmetrically arranged between the two sliders. The two ends of the two support rods are respectively fixedly connected to the side wall of the corresponding slider, and both support rods are set as arc-shaped rods. Both of the limiting seats are provided with sliding grooves, and the two sliders are respectively embedded in the corresponding sliding grooves.

[0010] As a further preferred embodiment of this technical solution, the two subsequent support rods are respectively embedded in the corresponding assembly slots, and the width of the support rods is equal to the width of the assembly slots.

[0011] This utility model has the following beneficial effects: 1. This utility model can quickly and accurately cut the beveled edges of the lower edge of two cans using multiple circumferentially distributed cutting blades, making it easy to observe whether there are whitening, bubbling or shrinkage cavities on the bottom of the can. By setting the support rod and movable plate to the same arc as the bottom of the two cans, the bottom arch can be quickly scribbled, while ensuring that the depth of the scratches is consistent, thus improving the detection accuracy and efficiency of the adhesion properties of the coating on the two cans.

[0012] 2. This utility model, through the matching groove and through groove, can limit the two pieces of can. Cutting and marking are carried out inside the bottom shell and the top shell, which improves the stability during cutting and marking, and avoids the sharp two pieces of can cutting the operator during the cutting process, eliminating safety hazards and improving the safety of testing the adhesion of the coating of the two pieces of can. Attached Figure Description

[0013] Figure 1This is an isometric structural diagram of a simple cutting tool for cutting and marking the bottom of two cans, as proposed in this utility model. Figure 2 This is a rear view structural diagram of a simple cutting tool for cutting and marking grids on the bottom of two cans, as proposed in this utility model. Figure 3 This is a front view schematic diagram of the cutting tool and limiting seat of a simple cutting tool for cutting and marking the bottom of two cans according to the present invention. Figure 4 This is a schematic diagram of the guide frame and gridding assembly of a simple cutting tool for cutting grids on the bottom of two cans, as proposed in this utility model. Figure 5 This is a front view of the gridding component of a simple cutting tool for cutting grids on the bottom of two cans, as proposed in this utility model. Figure 6 This is a rear view structural diagram of the gridding component of a simple cutting tool for cutting grids on the bottom of two cans, as proposed in this utility model.

[0014] In the diagram: 1. Bottom shell; 11. Matching groove; 12. Pressing block; 13. Hinge; 2. Top shell; 21. Through groove; 22. Locking block; 3. Tool; 31. Base; 32. Cutting knife; 4. Limiting seat; 41. Slide groove; 5. Guide frame; 51. Slider; 52. Support rod; 6. Grid assembly; 61. Movable plate; 62. Assembly groove; 63. Grid knife; 64. Handle. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] This utility model provides a technical solution: such as Figure 1 and Figure 2As shown, a simple cutting tool for cutting grids on the bottom of two cans includes a bottom shell 1 and a top shell 2. Two hinges 13 are symmetrically installed on the top side wall of the bottom shell 1, connecting to the side wall of the top shell 2. A matching groove 11 is formed in the middle of the bottom shell 1, and a through groove 21 is formed in the middle of the top shell 2. The positions of the matching groove 11 and the through groove 21 correspond, and the dimensions of the matching groove 11 and the through groove 21 are equal. A pressing block 12 is installed on the side wall of the bottom shell 1, and a locking block 22 is installed on the side wall of the top shell 2. The positions of 12 and 22 correspond to each other. It should be noted that the hinge 13 allows the bottom shell 1 and the top shell 2 to rotate relative to each other. Together with the pressing block 12 on the bottom shell 1 and the locking block 22 on the top shell 2, they form a buckle, which allows the bottom shell 1 and the top shell 2 to flip and close and be fixed in place. The size of the matching groove 11 can be set according to the bottom diameter of the two cans in the market. When the two cans are moved into the matching groove 11 for cutting and marking, the two cans are prevented from moving, ensuring stable operation and improving the accuracy of cutting and marking.

[0017] like Figure 3 As shown, multiple sets of cutters 3 are arranged circumferentially on the inner wall of the face shell 2. Each cutter 3 includes two symmetrically arranged bases 31, each base 31 having a cutting blade 32 embedded thereon. The two cutting blades 32 are inclined relative to the inner wall of the face shell 2. It should be noted that when cutting the bottom of the two cans, the two cans are inserted into the matching groove 11 from above the bottom shell 1. The face shell 2 is rotated around the hinge 13 to close and locked by a buckle. The operator can manually press down. At this time, the cutting blade 32 can divide the lower edge of the bottom of the two cans to observe the state of the groove at the bottom of the two cans, thereby judging the performance of the inner coating. Specifically, multiple cutting blades 32 are all attached to the bases 31 by slots. When the cutting blade 32 needs to be replaced, the operator can use pliers to directly pull off the cutting blade 32 and then reinstall a new cutting blade 32.

[0018] like Figure 3 and Figure 4As shown, a limiting seat 4 is provided between two adjacent sets of cutters 3, and a guide frame 5 is provided between the two limiting seats 4. The guide frame 5 includes two sliders 51 that are aligned, and two support rods 52 are symmetrically arranged between the two sliders 51. The two ends of the two support rods 52 are respectively fixedly connected to the side wall of the corresponding slider 51, and both support rods 52 are set as arc rods. Each of the two limiting seats 4 has a groove 41, and the two sliders 51 are respectively embedded in the corresponding groove 41. It should be noted that the span at both ends of the limiting seat 4 is set to 90°, and magnet blocks are respectively set on the inner walls of both ends of the groove 41 opened on the limiting seat 4. The two side walls of the slider 51 are respectively embedded with corresponding magnet blocks. In the initial state, the slider 51 is in contact with the inner wall of the groove 41. With the fixation of the two magnet blocks, the stability of the support rod 52 can be maintained, and the shaking can be avoided when the grid assembly 6 is moved. After scratching the bottom arch surface of the two cans, the two support rods 52 are rotated at the same time, thereby driving the sliders 51 at both ends to move synchronously. After rotating 90°, the slider 51 is in contact with the inner wall of the groove 41 again and is fixed by the magnet blocks. At this time, the movable plate 61 can be moved again to make the grid knife 63 scratch the two cans, and finally accurately form a grid, which is convenient for the adhesion test of the two cans.

[0019] like Figure 5 and Figure 6 As shown, a slidable gridding assembly 6 is mounted on the guide frame 5. The gridding assembly 6 includes a movable plate 61, which is an arc-shaped plate. Assembly slots 62 are respectively opened on both sides of the movable plate 61, and multiple gridding blades 63 are arranged between the two assembly slots 62. A handle 64 is fixedly installed on the side wall of the movable plate 61. Two support rods 52 are respectively embedded in the corresponding assembly slots 62, and the width of the support rods 52 is equal to the width of the assembly slots 62. Specifically, both support rods 52 maintain the same curvature as the bottom arch of the two tank pieces. To ensure the continuity and uniformity of the scribing, the movable plate 61 and the support rod 52 maintain the same curvature, ensuring that the movable plate 61 can slide smoothly on the support rod 52. The length of the scribing knife 63 on the movable plate 61 is set to shorten from both sides to the middle to adapt to the surface curvature of the two cans. Furthermore, when scribing the two cans, the operator can pull the handle 64 to move the movable plate 61 along the direction of the support rods 52 on both sides. The scribing knife 63 can leave scratches on the surface of the two cans, making the operation stable and highly accurate.

[0020] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A simple cutting tool for cutting and marking grids on the bottom of two-piece cans, comprising a bottom shell (1) and a top shell (2), characterized in that, Two hinges (13) are symmetrically installed on the top of the side wall of the bottom shell (1). The two hinges (13) are connected to the side wall of the face shell (2). Multiple sets of cutters (3) are arranged circumferentially on the inner wall of the face shell (2). A limit seat (4) is provided between two adjacent sets of cutters (3). A guide frame (5) is provided between two limit seats (4). A grid assembly (6) is slidably arranged on the guide frame (5). The gridding component (6) includes a movable plate (61), and the movable plate (61) is configured as an arc plate. Assembly slots (62) are respectively opened on both sides of the movable plate (61), and multiple gridding blades (63) are arranged between the two assembly slots (62). A handle (64) is fixedly installed on the side wall of the movable plate (61).

2. A simple cutting tool for cutting and marking grids on the bottom of two cans according to claim 1, characterized in that, The bottom shell (1) has a matching groove (11) in the middle, and the top shell (2) has a through groove (21) in the middle. The position of the matching groove (11) corresponds to the position of the through groove (21), and the size of the matching groove (11) is equal to the size of the through groove (21).

3. A simple cutting tool for cutting and marking grids on the bottom of two cans according to claim 1, characterized in that, A pressing block (12) is installed on the side wall of the bottom shell (1), and a locking block (22) is installed on the side wall of the front shell (2), with the pressing block (12) and the locking block (22) corresponding to each other.

4. A simple cutting tool for cutting and marking grids on the bottom of two cans according to claim 1, characterized in that, The cutting tool (3) includes two symmetrically arranged bases (31), each of which is equipped with a cutting blade (32), and the two cutting blades (32) are inclined relative to the inner wall of the shell (2).

5. A simple cutting tool for cutting and marking grids on the bottom of two cans according to claim 1, characterized in that, The guide frame (5) includes two sliders (51) arranged in alignment, and two support rods (52) are symmetrically arranged between the two sliders (51). The two ends of the two support rods (52) are respectively fixedly connected to the side wall of the corresponding slider (51), and both support rods (52) are set as arc rods. Both of the limiting seats (4) are provided with sliding grooves (41), and the two sliders (51) are respectively embedded in the corresponding sliding grooves (41).

6. A simple cutting tool for cutting and marking grids on the bottom of two cans according to claim 5, characterized in that, The two support rods (52) are respectively embedded in the corresponding assembly slots (62), and the width of the support rods (52) is equal to the width of the assembly slots (62).

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