Cutting device for LED lamp strip

Abstract

The cutting device comprises a base, the base is rectangular, a limiting groove penetrating left and right is formed in the middle of the upper side of the base, L-shaped supports are symmetrically installed at one end of the upper side of the base, the supports are located on the two sides of the end of the limiting groove respectively, and a knife falling groove perpendicular to the limiting groove is formed in the base. Two sets of vertical guide rails are symmetrically installed on the upper side of the base relative to the knife falling groove, matched sliding blocks are slidably connected into sliding grooves in the inner sides of the guide rails, top plates are fixedly installed at the upper ends of the two guide rails in the same set, and springs are connected between the upper sides of the sliding blocks and the top plates. A pressing wheel is rotationally connected between the two opposite sliding blocks, and the lower side of the pressing wheel falls into the limiting groove. The rotating resistance of the pressing wheel needs to be overcome when the lamp strip is pulled, so that the lamp strip can be straightened and prevented from arching and tilting, meanwhile, pressing is achieved, dislocation of the lamp strip can be prevented when the lamp strip is cut off, auxiliary tensioning is not needed, and operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of light strips, in particular to a cutting device for LED light strips. Background Art

[0002] LED light strips refer to LEDs assembled on a strip-shaped FPC (flexible circuit board) or PCB hard board. They are named because their product shape resembles a strip. They are gradually used in various decoration industries because of their long service life, energy saving and green environmental protection, which brings great convenience to people. In order to meet the needs of different scenarios, the light strips often need to be cut in applications, and the cut of the light strips needs to be along a specific position, otherwise the circuit on it may be damaged. Many light strips are marked with dotted lines to indicate the position where they can be shortened. In the prior art, there are also many cutting devices, such as the Chinese utility model patent with announcement number CN220348485U, which discloses an LED light strip cutting device, which drives the rubber pad to squeeze the main body of the light strip through a push plate to reduce the dislocation of the main body of the light strip during the cutting process, resulting in damage to the main body of the light strip. The arc push plate is then used to fit the two sides of the main body of the light strip to prevent the main body of the light strip from shaking left and right, and the main body of the light strip is cut with a cutter, thereby improving the cutting efficiency of the device. However, the above solution also has the following shortcomings: although the light strip can be pressed from both sides of the knife by using a push plate with a rubber pad, the flexible light strip is placed in a slide groove and needs to be tightened from both ends before being pressed to avoid arching or warping in the middle. If arching or warping exists, there will be a problem of left and right offset and misalignment during cutting, and tightening and cutting require cooperation of two people, so the convenience of operation is poor. Utility Model Content

[0003] The purpose of the utility model is to provide a cutting device for an LED light strip to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cutting device for LED light strips, comprising a base, the base is rectangular and has a limit groove running through the middle of its upper side, an L-shaped bracket is symmetrically installed at one end of the upper side of the base, the bracket is respectively located on both sides of the end of the limit groove, the upper end of the bracket is provided with an open card groove, the base is provided with a knife drop groove perpendicular to the limit groove, and a cutting knife is hingedly installed at the rear end of the knife drop groove, and two groups of vertical guide rails are symmetrically installed on the upper side of the base about the knife drop groove, and matching sliders are slidably connected in the slide groove on the inner side of the guide rails, and a top plate is fixedly installed on the upper ends of the two guide rails in the same group, a spring is connected between the upper side of the slider and the top plate, and a pressure wheel is rotatably connected between the two opposite sliders, and the lower side of the pressure wheel falls into the limit groove, and the spring applies a downward thrust to the slider.

[0005] Preferably, the axial length of the pressing wheel is smaller than the width of the limiting groove.

[0006] Preferably, an axially penetrating rotating shaft is fixedly installed in the middle of the pressure wheel, a vertical long hole is provided in the middle of the guide rail, the end of the rotating shaft passes through the slider and the long hole, and the outer end of the rotating shaft is provided with an external thread and a gasket and a nut are installed.

[0007] Preferably, the diameter of the rotating shaft is smaller than the width of the elongated hole.

[0008] Compared with the prior art, the utility model has the following beneficial effects: when in use, the light strip moves out from the limit groove, the pressure wheel presses on the upper part of the light strip, and the rotational resistance of the pressure wheel needs to be overcome when pulling the light strip, so the light strip can be straightened to prevent it from arching or warping, while achieving compression, and preventing the light strip from being misplaced when cutting, without the need for auxiliary tightening, and can be operated by one person, which is convenient to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the structure of the utility model;

[0010] Figure 2 This is a schematic diagram of the top view structure of the utility model;

[0011] Figure 3 It is a structural schematic diagram of the guide rail assembly of the utility model.

[0012] In the figure: 1. base; 2. bracket; 3. slot; 4. limit slot; 5. cutting knife; 6. pressure wheel; 7. guide rail; 8. spring; 9. long hole; 10. slider; 11. top plate; 12. knife drop slot. DETAILED DESCRIPTION

[0013] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0014] See also Figure 1-3The utility model provides a technical solution: a cutting device for LED light strips, comprising a base 1, the base 1 is rectangular and has a limit groove 4 running through the middle of the upper side, the light strip moves out along the length direction of the limit groove 4, an L-shaped bracket 2 is symmetrically installed at one end of the upper side of the base 1, the bracket 2 is respectively located at both sides of the end of the limit groove 4, and an open card slot 3 is provided at the upper end of the bracket 2, the card slot 3 is used to place a winding wheel for winding the light strip, and the winding wheel is located directly above the limit groove 4. A knife drop groove 12 perpendicular to the limit groove 4 is provided on the base 1, and a cutting knife 5 is hingedly installed at the rear end of the knife drop groove 12. The cutting knife 5 is pulled forward so that the cutting knife 5 falls into the knife drop groove 12 and can be cut. Two groups of vertical guide rails 7 are symmetrically installed on the upper side of the base 1 about the knife drop groove 12, and matching sliders 10 are slidably connected in the sliding grooves inside the guide rails 7. A top plate 11 is fixedly installed on the upper ends of the two guide rails 7 in the same group, and a spring 8 is connected between the upper side of the slider 10 and the top plate 11.

[0015] A pressure wheel 6 is rotatably connected between two opposing sliders 10. The pressure wheel 6 is provided with anti-skid grooves along the circumference. The axial length of the pressure wheel 6 is smaller than the width of the limit groove 4. The lower side of the pressure wheel 6 falls into the limit groove 4. The spring 8 applies a downward thrust to the slider 10. An axially penetrating rotating shaft is fixedly installed in the middle of the pressure wheel 6. A vertical long hole 9 is provided in the middle of the guide rail 7. The end of the rotating shaft penetrates the slider 10 and the long hole 9. The diameter of the rotating shaft is smaller than the width of the long hole 9. The outer end of the rotating shaft is provided with an external thread and a gasket and a nut are installed. The nut and the gasket provide resistance to the rotation of the rotating shaft and the pressure wheel 6, so as to ensure that the light strip between the two pressure wheels 6 is in a taut and straight state.

[0016] Working principle: When in use, place the reel of the light strip on the bracket 2, the light strip moves out from the limiting groove 4, and the pressure wheel 6 is pressed on the upper part of the light strip. When pulling the light strip, it is necessary to overcome the rotation resistance of the pressure wheel 6, so that the light strip can be straightened to prevent it from arching or warping. In this way, cutting is performed when the cut line on the light strip is aligned with the knife groove 12, which can effectively prevent misalignment.

[0017] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cutting device for an LED light strip, comprising a base (1), wherein the base (1) is rectangular and has a limiting groove (4) penetrating left and right at the middle of the upper side thereof, characterized in that: An L-shaped bracket (2) is symmetrically mounted on one end of the upper side of the base (1), and the bracket (2) is respectively located on both sides of the end of the limiting groove (4). An open card slot (3) is provided at the upper end of the bracket (2). A knife drop groove (12) perpendicular to the limiting groove (4) is provided on the base (1), and a cutting knife (5) is hingedly mounted at the rear end of the knife drop groove (12). Two sets of vertical guides are symmetrically mounted on the upper side of the base (1) about the knife drop groove (12). A guide rail (7) is provided, wherein a matching slider (10) is slidably connected in a slide groove inside the guide rail (7), a top plate (11) is fixedly installed at the upper ends of two guide rails (7) in the same group, a spring (8) is connected between the upper side of the slider (10) and the top plate (11), a pressure wheel (6) is rotatably connected between the two opposing sliders (10), the lower side of the pressure wheel (6) falls into the limiting groove (4), and the spring (8) applies a downward thrust to the slider (10).

2. The cutting device for LED light strip according to claim 1, characterized in that: The axial length of the pressing wheel (6) is smaller than the width of the limiting groove (4).

3. The cutting device for LED light strip according to claim 1, characterized in that: An axially penetrating rotating shaft is fixedly installed in the middle of the pressure wheel (6), a vertical long hole (9) is provided in the middle of the guide rail (7), the end of the rotating shaft passes through the slider (10) and the long hole (9), and the outer end of the rotating shaft is provided with an external thread and a gasket and a nut are installed.

4. The cutting device for LED light strip according to claim 3, characterized in that: The diameter of the rotating shaft is smaller than the width of the elongated hole (9).

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