Film sample cutting device

Abstract

The utility model discloses a film sample cutting device which comprises a base and a lifting plate connected with the base in a lifting mode, the base comprises a bearing plate, a plurality of bearing units are arranged on the bearing face of the bearing plate, the size of the bearing units is consistent with that of a prepared sample, and the lifting plate is arranged on the bearing face of the bearing plate. A gap for allowing a cutting knife to penetrate through is formed between every two adjacent bearing units; the lifting plate is provided with pressing block units in one-to-one correspondence with the bearing units, and the cutting knife is arranged between every two adjacent pressing block units; the pressing block unit is movably arranged, the pressing block unit is provided with two working positions, and under the first working position, the bottom face of the pressing block unit is located below the cutting edge of the cutting knife; in the second working position, the bottom face of the pressing block unit is located above the cutting edge of the cutting knife. The film sample cutting device is reasonable in structure, a plurality of consistent film samples can be cut at a time, and the sample preparation efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to film detection technical field especially relates to a film sample cutting device. BACKGROUND

[0002] It is known that film, especially detection film, needs to be cut into equal film samples for use in the use process, and at present, the film sample preparation process for detection is mainly completed by hand, however, the process of cutting film sample by hand is extremely time-consuming and laborious, and although the movement mode of cutting film is relatively simple, the precision and repeatability of the mode of manually controlling the movement of the blade are poor, at the same time, under the influence of the hardness and friction force of the blade backing plate, the uniformity of film sample cutting is difficult to guarantee and the efficiency is low, in addition, the cutting position and spacing of the sample are controlled by human, which further increases the unevenness of cutting.

[0003] Therefore, it is necessary to improve the film sample cutting device in the prior art. SUMMARY

[0004] The utility model discloses a film sample cutting device can cut out a plurality of consistent film samples at a time, improve the sample preparation efficiency.

[0005] In order to realize the above technical effect, the technical scheme of the utility model is as follows: a film sample cutting device, comprising a base, a lifting plate connected with the base, the base comprises a bearing plate, the bearing surface of the bearing plate is provided with a plurality of bearing units, the bearing unit is consistent with the size of the sample after sample preparation, a gap is arranged between the adjacent two bearing units for the cutting knife to pass through, the lifting plate is provided with a pressing block unit corresponding to the bearing unit, the adjacent two pressing block units are provided with the cutting knife, the pressing block unit is movably arranged, the pressing block unit has two working positions, in the first working position, the bottom surface of the pressing block unit is below the cutting edge of the cutting knife, in the second working position, the bottom surface of the pressing block unit is above the cutting edge of the cutting knife.

[0006] According to one embodiment of the utility model, a compression spring is arranged between the pressing block unit and the lifting plate.

[0007] According to one embodiment of the utility model, the lifting plate is fixedly provided with a guide column, the pressing block unit is provided with a sliding groove in sliding connection with the guide column, and the extension direction of the guide column is vertically arranged.

[0008] According to one embodiment of the utility model, a limiting convex ring is arranged between the guide column and the slot of the sliding groove to prevent the pressing block unit from being separated from the lifting plate.

[0009] According to one embodiment of the utility model, the base includes fixedly arranged guide rod, the lifting plate is provided with the sliding hole of sliding cooperation with the guide rod, the extension direction of guide rod is vertically arranged.

[0010] According to one embodiment of the utility model, the guide rod is fixedly arranged with platform, further include cylinder, the cylinder body of cylinder is fixedly connected with the platform, the piston rod of cylinder is fixedly connected with the lifting plate.

[0011] According to one embodiment of the utility model, the bearing plate is provided with negative pressure cavity, and the bearing unit is provided with a plurality of negative pressure pinholes communicated with the negative pressure cavity.

[0012] According to one embodiment of the utility model, the bearing plate is provided with negative pressure pipeline communicated with the negative pressure cavity.

[0013] The utility model discloses a film sample cutting device, which has the advantages of reasonable structure, high sample preparation efficiency and the like. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the structure schematic diagram of film sample cutting device embodiment of the utility model;

[0015] Figure 2 It is Figure 1 Sectional view of;

[0016] Figure 3 It is Figure 1 Explosion schematic diagram of;

[0017] Figure 4 It is the structure schematic diagram of second working position;

[0018] Figure 5 It is the sectional view of bearing plate;

[0019] Figure 6 It is the explosion schematic diagram of pressure block unit;

[0020] In the drawing: 1, base;11, guide rod;12, platform;2, lifting plate;21, guide column;22, sliding hole;3, bearing plate;31, bearing unit;32, gap;33, negative pressure cavity;34, negative pressure pinhole;35, negative pressure pipeline;4, pressure block unit;41, sliding slot;5, cutting knife;6, compression spring;7, limit convex ring;8, cylinder;9, sample. DETAILED DESCRIPTION

[0021] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model. Example

[0022] like Figures 1-4 As shown, the thin film sample cutting device of the embodiment includes a base 1 and a lifting plate 2 that is vertically connected to the base 1. The base 1 includes a support plate 3, and the support surface of the support plate 3 is provided with a plurality of support units 31. The size of the support unit 31 is consistent with that of the sample after sample preparation. A gap 32 for the cutting blade 5 to pass through is provided between two adjacent support units 31. The lifting plate 2 is provided with a pressing block unit 4 corresponding to each support unit 31. The cutting blade 5 is provided between two adjacent pressing block units 4. The pressing block unit 4 is movably arranged and has two working positions. In the first working position, the bottom surface of the pressing block unit 4 is located below the blade of the cutting blade 5. In the second working position, the bottom surface of the pressing block unit 4 is located above the blade of the cutting blade 5.

[0023] With this design, the initial position of the pressing unit 4 is located in the first working position. The blade of the cutting knife 5 is covered by the pressing unit 4. The sample 9 is placed on the support plate 3. As the lifting plate 2 descends, the pressing unit 4 comes into contact with the sample. As the lifting plate 2 continues to descend, the pressing unit 4 transitions from the first working position to the second working position. The blade of the cutting knife 5 is gradually exposed to cut the sample.

[0024] According to one embodiment of the present invention, a compression spring 6 is sandwiched between the pressure block unit 4 and the lifting plate 2.

[0025] According to one embodiment of the present invention, the lifting plate 2 is fixedly provided with a guide post 21, and the pressing block unit 4 is provided with a sliding groove 41 that is slidably connected to the guide post 21. The extension direction of the guide post 21 is vertically arranged.

[0026] According to one embodiment of the present invention, a limiting protrusion 7 is provided between the guide post 21 and the groove of the slide 41 to prevent the pressure block unit 4 from separating from the lifting plate 2.

[0027] According to one embodiment of the present invention, the base 1 includes a fixedly disposed guide rod 11, the lifting plate 2 is provided with a sliding hole 22 that slides with the guide rod 11, and the extension direction of the guide rod 11 is vertically disposed.

[0028] According to one embodiment of the utility model, the guide rod 11 is fixedly provided with a platform 12, further include cylinder 8, the cylinder body of cylinder 8 is fixedly connected with platform 12, the piston rod of cylinder 8 is fixedly connected with lifting plate 2.

[0029] According to one embodiment of the utility model, the bearing plate 3 is provided with a negative pressure cavity 33, and the bearing unit 31 is provided with a plurality of negative pressure pinholes 34 in communication with the negative pressure cavity 33.

[0030] Through the design, when the sample 9 is initially placed on the bearing plate 3, the negative pressure is opened, and the sample 9 is adsorbed and fixed, so that the firmness of the preliminary fixation is realized.

[0031] According to one embodiment of the utility model, the bearing plate 3 is provided with a negative pressure pipeline 35 in communication with the negative pressure cavity 33.

[0032] The above is only the preferred embodiment of the utility model, and it should be pointed out that for ordinary skilled persons in the technical field, several improvements and refinements can be made without departing from the technical principles of the utility model, and these improvements and refinements should also be considered as the protection scope of the utility model.

Claims

1. A thin film sample cutting device, characterized in that, The system includes a base (1) and a lifting plate (2) connected to the base (1) for lifting. The base (1) includes a support plate (3). The support surface of the support plate (3) is provided with several support units (31). The support units (31) are the same size as the sample after sample preparation. A gap (32) for the cutting blade (5) to pass through is provided between two adjacent support units (31). The lifting plate (2) is provided with a pressing block unit (4) corresponding to the support unit (31). The cutting blade (5) is provided between two adjacent pressing block units (4). The pressing block unit (4) is movably arranged and has two working positions. In the first working position, the bottom surface of the pressing block unit (4) is located below the blade of the cutting blade (5). In the second working position, the bottom surface of the pressing block unit (4) is located above the blade of the cutting blade (5).

2. The thin film sample cutting device according to claim 1, characterized in that, A compression spring (6) is sandwiched between the pressing block unit (4) and the lifting plate (2).

3. The thin film sample cutting device according to claim 2, characterized in that, The lifting plate (2) is fixedly provided with a guide column (21), and the pressing block unit (4) is provided with a sliding groove (41) that is slidably connected to the guide column (21). The extension direction of the guide column (21) is vertical.

4. The thin film sample cutting device according to claim 3, characterized in that, A limiting protrusion (7) is provided between the guide post (21) and the groove of the slide (41) to prevent the pressure block unit (4) from separating from the lifting plate (2).

5. The thin film sample cutting device according to claim 1, characterized in that, The base (1) includes a fixed guide rod (11), and the lifting plate (2) is provided with a sliding hole (22) that slides with the guide rod (11). The extension direction of the guide rod (11) is vertical.

6. The thin film sample cutting device according to claim 5, characterized in that, The guide rod (11) is fixedly provided with a platform (12) and also includes a cylinder (8). The cylinder body of the cylinder (8) is fixedly connected to the platform (12), and the piston rod of the cylinder (8) is fixedly connected to the lifting plate (2).

7. The thin film sample cutting device according to claim 1, characterized in that, The bearing plate (3) is provided with a negative pressure cavity (33), and the bearing unit (31) is provided with a plurality of negative pressure pinholes (34) communicating with the negative pressure cavity (33).

8. The thin film sample cutting device according to claim 7, characterized in that, The bearing plate (3) is provided with a negative pressure pipe (35) that communicates with the negative pressure chamber (33).

Images