Film cutting tool assembled with ruler

Abstract

The utility model relates to the technical field of experiment auxiliary instruments. A film cutting tool for assembling a ruler comprises a film pressing plate, a strip-shaped opening is formed in the film pressing plate, a sliding groove for the ruler to slide in is formed in the film pressing plate, and the sliding groove and the strip-shaped opening are arranged adjacently; the cutting assembly comprises a knife handle and a cutting knife, and the knife handle is detachably connected with the cutting knife; the cutting device further comprises a cutting guide mechanism, the cutting guide mechanism comprises two guide rails arranged side by side, and the two guide rails are located on the two sides of the strip-shaped opening; the two guide rails are in sliding connection with the two sides of a sliding block, the sliding block is detachably connected with the cutter handle, and a cutter head of the cutter extends into the strip-shaped opening; and a grasping part is arranged on the sliding block. According to the utility model, the membrane is pressed down through the membrane pressing plate, the membrane pressing plate is conveniently taken and placed through the grabbing part on the sliding block, and different scales are replaced, so that the switching of scales with different precisions is met, and different cutting requirements are met. And the cutter is detachable, so that the problem of rusting of the cutter body is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of experimental auxiliary instruments, in particular to a membrane cutting tool. Background Art

[0002] Currently, PVDF (polyvinylidene fluoride) membranes are often cut manually using a blade in protein blotting experiments. This method has the following problems:

[0003] 1. It can easily lead to contamination of protein bands.

[0004] 2. The operation is inconvenient, which may result in irregular and unsightly cut strips.

[0005] 3. The blade body cannot be replaced. It is easy to be contaminated if not cleaned, and it is easy to rust and cause contamination if cleaned. Utility Model Content

[0006] In view of the problems existing in the prior art, the present invention provides a film cutting tool for assembling a ruler, which solves at least one of the above technical problems.

[0007] The technical solution of the utility model is: a film cutting tool for assembling a ruler, characterized by comprising a film pressing plate, a strip-shaped opening being formed on the film pressing plate, a sliding groove for sliding the ruler into being formed on the film pressing plate, the sliding groove being arranged adjacent to the strip-shaped opening;

[0008] The invention also includes a cutting assembly, wherein the cutting assembly includes a handle and a cutting knife, and the handle and the cutting knife are detachably connected;

[0009] It also includes a cutting guide mechanism, the cutting guide mechanism includes two guide rails arranged side by side, and the two guide rails are located on both sides of the strip-shaped opening;

[0010] Two guide rails are slidably connected to two sides of a slider, the slider is detachably connected to the knife handle, and the cutting knife head extends into the strip-shaped opening;

[0011] The slider is provided with a gripping portion.

[0012] The utility model uses a film pressing plate to press down the film to be cut, and the gripping portion on the slider facilitates the removal and placement of the film pressing plate. By replacing different scales, scales of different accuracies can be switched to meet different cutting requirements. The detachable cutting blade avoids rusting of the blade body.

[0013] Further preferably, the cutting knife includes a cutter head and a mounting portion connected in sequence, the mounting portion is provided with a limiting hole, the limiting hole includes a guide portion and a limiting portion that are connected and connected to each other, the guide portion is located adjacent to the cutter head, the limiting portion is located away from the cutter head, and the width of the guide portion is smaller than the width of the limiting portion;

[0014] The tool handle includes a mounting head, the mounting head is provided with a protrusion embedded in the limiting hole, and the end of the protrusion is provided with a guide groove slidably connected to the guide part.

[0015] The detachable assembly of the cutting knife and the knife handle is facilitated, and the assembly method adopts the assembly method of the knife head and the knife handle of the traditional scalpel.

[0016] Further preferably, a slot with an open upper end is provided on the sliding block, and a plug-in portion inserted into the slot is provided on the knife handle.

[0017] It is convenient to insert the plug-in part into the slot from top to bottom to realize the assembly of the tool handle and the slider. When pushing the slider, pressing down the connection between the slider and the tool handle can realize the relative fixation of the slider and the tool handle while also guiding the sliding direction.

[0018] Further preferably, a guide rod is slidably connected to the slider, and an indicator needle is connected to the guide rod, and the indicator needle is used to slide above the ruler;

[0019] The indicator needle is flush with the tip of the cutter head;

[0020] The guide rod is threadedly connected with two locking nuts, which are clamped on both sides of the sliding block.

[0021] The indicator pin facilitates precise positioning of the cutting length.

[0022] Further preferably, a finger ring is detachably connected to the top of the slider.

[0023] It is convenient to put the index finger in for taking and placing, or to drive the slider to slide.

[0024] Further preferably, a sliding portion is provided on the opposite side of the slider, and the sliding portion includes an upper portion and a lower portion which are arranged one above the other, and a gap between the upper portion and the lower portion is slidably connected to the guide rail.

[0025] Further preferably, a baffle is detachably connected to the end of the guide rail.

[0026] The baffle can be removed to facilitate sliding the slider in; the baffle can be installed to prevent the slider from sliding out.

[0027] Compared with the prior art, the beneficial effects of the present invention are:

[0028] The utility model is convenient for replacing the cutter head and can realize the pollution-free pressing cutting of the diaphragm. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a structural diagram of a specific embodiment 1 of the present utility model;

[0030] Figure 2 This is a structural schematic diagram of a cutting assembly according to a specific embodiment 1 of the present utility model;

[0031] Figure 3 This is an exploded view of the cutting assembly of specific embodiment 1 of the present invention.

[0032] In the figure, 1 is a film pressing plate, 2 is a guide rail, 3 is a cutting knife, 4 is a knife handle, 5 is a ruler, 8 is a guide rod, 9 is an indicator needle, 10 is a baffle, 12 is a strip opening, 13 is a slider, and 41 is a plug-in part. DETAILED DESCRIPTION

[0033] See also Figures 1 to 3 Specific embodiment 1, a film cutting tool for assembling a ruler, including a film pressing plate 1, a strip opening 12 is provided on the film pressing plate 1, a slide groove for sliding into the ruler 5 is provided on the film pressing plate 1, and the slide groove is arranged adjacent to the strip opening 12; it also includes a cutting assembly, the cutting assembly includes a handle 4 and a cutting knife 3, the handle 4 and the cutting knife 3 are detachably connected; it also includes a cutting guide mechanism, the cutting guide mechanism includes two guide rails 2 arranged side by side, the two guide rails 2 are located on both sides of the strip opening 12; the two guide rails 2 are slidably connected to both sides of a slider 13, the slider 13 is detachably connected to the handle 4, and the blade head of the cutting knife 3 extends into the strip opening 12; the slider 13 is provided with a gripping portion. The utility model realizes the downward pressure of the film to be cut by the film pressing plate 1, and the gripping portion on the slider 13 facilitates the taking and placing of the film pressing plate 1. By replacing different rulers 5, the switching of rulers 5 with different accuracies can be met, and different cutting requirements can be met. The detachable cutting knife 3 avoids the problem of rust on the knife body. The laminating plate is a transparent plate. The chute guides left and right, with the left end of the chute closed and the right end open. A rectangular notch is provided at the top of the chute to expose the scale's graduations. A guide slider is provided at the front end of the scale, slidably connected to the chute. The guide slider can be a T-shaped slider. Scale lines are provided on the rear side of the scale.

[0034] Two guide rails are set front and back.

[0035] The right end of the strip opening is open. The front end of the strip opening is flush with the rear end of the ruler. The distance between the front and back of the strip opening is greater than 1 cm. This facilitates the exposure of the cutting area.

[0036] The cutting blade 3 comprises a sequentially connected blade head and a mounting portion, the mounting portion having a stopper hole formed therein. The stopper hole comprises a guide portion and a stopper portion, the guide portion being located adjacent to the blade head and the stopper being located further away from the blade head. The width of the guide portion is smaller than that of the stopper portion. The handle 4 comprises a mounting head, which is provided with a protrusion that engages the stopper hole. The end of the protrusion has a guide groove formed therein that slidably connects to the guide portion. This facilitates the detachable assembly of the cutting blade 3 and the handle 4, adopting the traditional assembly method of the blade head and handle 4 of a scalpel.

[0037] The slider 13 is provided with a slot with an open top, and the handle 4 is provided with a plug-in portion 41 that is inserted into the slot. The plug-in portion is conveniently inserted into the slot from top to bottom to complete the assembly of the handle 4 and the slider 13. When the slider 13 is pushed, the connection between the slider 13 and the handle 4 is pressed down, which can achieve the relative fixation of the slider 13 and the handle 4 while also guiding the sliding direction.

[0038] Sliding portions are provided on opposite sides of the slider 13. These portions comprise an upper portion and a lower portion, arranged one above the other. The gap between the upper and lower portions is slidably connected to the guide rail 2. A baffle is removably attached to the end of the guide rail 2. This baffle can be removed to facilitate the insertion of the slider 13; the baffle can be installed to prevent the slider 13 from sliding out. The two guide rails 2 are U-shaped, with their openings facing each other. The top of the U-shaped guide rail 2 is slidably connected to the gap between the upper and lower portions.

[0039] See also Figure 1 Specific embodiment 2, based on specific embodiment 1, is provided with a guide rod 6 slidably connected to the slider, and an indicator needle 9 is connected to the guide rod 6. The indicator needle 9 is configured to slide over the scale; the indicator needle is flush with the tip of the cutting head. Two locking nuts are threadedly connected to the guide rod, and the two locking nuts are clamped on either side of the slider. This facilitates precise positioning of the cutting length using the indicator needle. The length of the guide rod is oriented in the left-right direction.

[0040] Specific embodiment 3, based on specific embodiment 1, a finger ring is detachably connected to the top of the slider 13. It is convenient to insert the index finger for taking and placing, or to drive the slider 13 to slide. The gripping portion may include a finger ring.

[0041] Specific embodiment 4, based on specific embodiment 1, has a reference line set on the left side of the strip-shaped opening, with a distance of 1 cm from the front side of the strip-shaped opening. This facilitates the 180° horizontal rotation of the film pressing plate, allowing a 1 cm wide strip to be cut from the middle section of the film. The reference line can be set on a baffle connected to the left side of the guide rail.

[0042] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A film cutting tool for assembling a ruler, characterized in that: The invention comprises a film pressing plate, wherein the film pressing plate is provided with a strip-shaped opening, and the film pressing plate is provided with a sliding groove for sliding the ruler, wherein the sliding groove is arranged adjacent to the strip-shaped opening; The invention also includes a cutting assembly, wherein the cutting assembly includes a handle and a cutting knife, and the handle and the cutting knife are detachably connected; It also includes a cutting guide mechanism, the cutting guide mechanism includes two guide rails arranged side by side, and the two guide rails are located on both sides of the strip-shaped opening; Two guide rails are slidably connected to two sides of a slider, the slider is detachably connected to the knife handle, and the cutting knife head extends into the strip-shaped opening; The slider is provided with a gripping portion.

2. A film cutting tool for assembling a ruler according to claim 1, characterized in that: The cutting knife includes a cutter head and a mounting portion connected in sequence, the mounting portion is provided with a limiting hole, the limiting hole includes a guide portion and a limiting portion that are connected and connected to each other, the guide portion is located adjacent to the cutter head, the limiting portion is located away from the cutter head, and the width of the guide portion is smaller than the width of the limiting portion; The tool handle includes a mounting head, the mounting head is provided with a protrusion embedded in the limiting hole, and the end of the protrusion is provided with a guide groove slidably connected to the guide part.

3. The film cutting tool for assembling a ruler according to claim 1, characterized in that: The sliding block is provided with a slot with an upper end opening, and the knife handle is provided with a plug-in portion inserted into the slot.

4. The film cutting tool for assembling a ruler according to claim 1, characterized in that: A guide rod is slidably connected to the slider, and an indicator needle is connected to the guide rod, and the indicator needle is used to slide above the ruler; The indicator needle is flush with the tip of the cutter head; The guide rod is threadedly connected with two locking nuts, which are clamped on both sides of the sliding block.

5. The film cutting tool for assembling a ruler according to claim 1, characterized in that: The top of the slider is detachably connected with a finger ring.

6. The film cutting tool for assembling a ruler according to claim 1, characterized in that: A sliding portion is provided on the opposite side of the sliding block. The sliding portion includes an upper portion and a lower portion which are arranged one above the other. A gap between the upper portion and the lower portion is slidably connected to the guide rail.

7. The film cutting tool for assembling a ruler according to claim 1, characterized in that: The end of the guide rail is detachably connected to a baffle.

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