Laser slitting device for film label printing

Abstract

The utility model discloses a laser slitting device for film label printing, and relates to the technical field of slitting devices. The laser slitting device for film label printing comprises a conveying assembly, rotating shafts rotationally arranged on the inner walls of the two sides of a fixing frame and rotating rollers fixedly arranged on the outer surfaces of the rotating shafts. And the slitting assembly comprises sliding rods fixedly arranged on the inner walls of the two sides of the fixing frame and a plurality of sliding plates arranged on the outer surfaces of the sliding rods in a sliding mode, and laser cutting heads are arranged on the upper surfaces of the sliding plates. By means of the slitting assembly, when the slitting device is used for slitting a PET film, the purpose of accurately controlling the width of a cut strip-shaped film can be achieved, a plurality of strip-shaped target films can be cut at a time, practicability is high, and by arranging the positioning assembly, after the sliding plate is moved to the designated position, the positioning assembly can be used for positioning the strip-shaped target films. And effective braking of the sliding plate can be achieved, and therefore the stability of the laser cutting head in the cutting process is effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of slitting devices, in particular to a laser slitting device for film label printing. Background Art

[0002] Film labels are PET labels. PET has good hardness and brittleness, can withstand certain high temperatures, resist harsh environments, and resist corrosion from chemicals such as acids and alkalis. It is very suitable for outdoor and high-quality labels. Before printing film labels, a cutting device is needed to cut the rolled PET film into a specified width. The existing patent is a blown film laser cutting device. Patent announcement number CN210231939U includes two carbon dioxide lasers. The light outlet of the carbon dioxide laser faces the edge of the film. Two boxes are provided on each of the two edges of the film. The two boxes located on the same edge of the film are located on both sides of the film, symmetrical about the light outlet of the carbon dioxide laser, and a plurality of air holes are provided on the surface facing the film. The edge of the film is located within the adsorption range of the air holes on the four boxes. All boxes are connected to the negative pressure fan through air pipes. The utility model separates the two layers of film, so that the width of the film facing the light outlet of the carbon dioxide laser becomes larger, which is conducive to aligning the laser beam emitted by the carbon dioxide laser with the edge of the film, thereby improving the success rate of carbon dioxide laser cutting the film; static electricity on the film is eliminated by the static elimination rod, which is conducive to improving the winding quality of the film.

[0003] With respect to the above-mentioned related technologies, the inventors believe that the following defects exist: when the laser cutting device actually cuts the PET film, it can only cut the edges of the film on both sides. During cutting, it is unable to accurately control the width of the cut film according to the width of different film labels, thereby seriously affecting the cutting efficiency.

[0004] Therefore, we propose a laser cutting device for film label printing to solve the above problems. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a laser slitting device for film label printing, which solves the problem that it is inconvenient to accurately control the width of the cut film.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a laser cutting device for film label printing, comprising:

[0007] A conveying assembly, which is used to convey the PET film, and the conveying assembly includes a fixed frame, a rotating shaft rotatably arranged on the inner walls of both sides of the fixed frame, and a rotating roller fixedly arranged on the outer surface of the rotating shaft;

[0008] A slitting assembly, comprising a sliding rod fixedly mounted on the inner walls of both sides of a fixed frame, and a plurality of sliding plates slidably mounted on the outer surfaces of the sliding rods, wherein a laser cutting head is mounted on the upper surface of the sliding plate, and the slitting assembly further comprises a connecting plate fixedly mounted on the front surface of the sliding plate and slidably connected to the inner bottom wall of the fixed frame, and an inclined platform fixedly mounted on the front surface of the fixed frame, wherein a triangular indicator plate slidably connected to the surface of the inclined platform is fixedly mounted at the end of the connecting plate, and a scale mark line corresponding to the tip of the triangular indicator plate is mounted on the surface of the inclined platform;

[0009] The positioning assembly is used for positioning the sliding plate and the sliding rod.

[0010] Preferably, a connector for connecting the laser cutting head to an external laser cutting machine body through a wire is provided on the back side of the sliding plate.

[0011] Preferably, the positioning assembly includes a strip-shaped tooth groove formed on the surface of the slide rod, and a sliding hole formed on the side of the slide plate and slidably connected to the surface of the slide rod.

[0012] Preferably, the inner wall of the sliding hole is provided with a rectangular cavity extending to the interior of the sliding plate, and the inner wall of the rectangular cavity is slidably connected with a tooth block with mutually meshing strip-shaped tooth grooves.

[0013] Preferably, a pull rod extending to the front of the sliding plate is fixedly provided on the surface of the tooth block, and a through hole extending to the front of the sliding plate is opened on the inner wall of the rectangular cavity, the pull rod is slidably connected to the inner wall of the through hole, and a pull plate is fixedly provided at the end of the pull rod.

[0014] Preferably, a clamping spring is sleeved on the surface of the pull rod, and two ends of the clamping spring are fixedly connected to the inner wall of the rectangular cavity and the surface of the tooth block respectively.

[0015] Preferably, the PET film passes through the bottom end of the rotating roller, and a mounting cavity is provided inside the frame body of the fixed frame, and a driving motor for driving the rotating shaft to rotate is provided on the inner wall of the mounting cavity.

[0016] Beneficial Effects

[0017] The utility model provides a laser cutting device for film label printing. Compared with the prior art, it has the following beneficial effects:

[0018] The laser slitting device for film label printing, by providing a slitting component, can achieve the purpose of accurately controlling the width of the cut strip film when slitting the PET film, and can cut multiple strip-shaped target films at one time, so it is highly practical. Moreover, by providing a positioning component, after the sliding plate is moved to a specified position, the sliding plate can be effectively braked, thereby effectively ensuring the stability of the laser cutting head during the cutting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 This is a rear view structural diagram of the utility model;

[0021] Figure 3 This is a schematic diagram of the top-sectional structure of the sliding plate of the utility model;

[0022] Figure 4 For this utility model Figure 3 Enlarged structural diagram at A in the middle.

[0023] In the figure:

[0024] 100, conveying assembly; 101, fixed frame; 102, rotating shaft; 103, rotating roller;

[0025] 200, cutting assembly; 201, sliding rod; 202, sliding plate; 203, laser cutting head; 204, connecting plate; 205, inclined platform; 206, triangular indicator plate; 207, scale mark line; 208, joint;

[0026] 300, positioning assembly; 301, strip-shaped tooth groove; 302, sliding hole; 303, rectangular cavity; 304, tooth block; 305, pull rod; 306, pull plate; 307, tightening spring;

[0027] 400, PET film. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Embodiment 1

[0030] See also Figure 1-2 The utility model provides a technical solution: a laser cutting device for film label printing, comprising:

[0031] The conveying assembly 100 is used to convey the PET film 400. The conveying assembly 100 includes a fixed frame 101, a rotating shaft 102 rotatably arranged on the inner walls of both sides of the fixed frame 101, and a rotating roller 103 fixedly arranged on the outer surface of the rotating shaft 102;

[0032] The PET film 400 passes through the bottom end of the rotating roller 103 , and a mounting cavity is provided inside the frame of the fixed frame 101 , and a driving motor for driving the rotating shaft 102 to rotate is provided on the inner wall of the mounting cavity.

[0033] The slitting assembly 200 includes a sliding rod 201 fixed on the inner walls on both sides of the fixed frame 101, and a plurality of sliding plates 202 slidably arranged on the outer surface of the sliding rod 201. A laser cutting head 203 is arranged on the upper surface of the sliding plate 202, and a connector 208 for connecting the laser cutting head 203 with an external laser cutting machine body through wires is arranged on the back side of the sliding plate 202.

[0034] The slitting assembly 200 also includes a connecting plate 204 fixed on the front of the sliding plate 202 and slidably connected to the inner bottom wall of the fixed frame 101, and an inclined platform 205 fixed on the front of the fixed frame 101. The end of the connecting plate 204 is fixed with a triangular indicator plate 206 slidably connected to the surface of the inclined platform 205, and the surface of the inclined platform 205 is provided with a scale marking line 207 corresponding to the tip of the triangular indicator plate 206.

[0035] In this embodiment, by setting up the slitting component 200, the slitting device can observe the position of the triangular indicator plate 206 on the scale mark line 207 on the inclined platform 205 when slitting the PET film 400, determine the width of the strip film obtained after cutting, and after making the widths of several strip films consistent, the laser cutting host is connected to the connector 208 on the sliding plate 202 through a wire, and the PET film 400 is automatically cut, thereby achieving the purpose of accurately controlling the width of the cut strip film, and multiple strip target films can be cut at one time, which is very practical.

[0036] Embodiment 2

[0037] Based on Example 1, refer to Figure 3-4 , and different from the first embodiment,

[0038] The positioning assembly 300 is used to position the sliding plate 202 and the sliding rod 201 .

[0039] The positioning assembly 300 includes a strip-shaped tooth groove 301 formed on the surface of the sliding rod 201 , and a sliding hole 302 formed on the side of the sliding plate 202 and slidably connected to the surface of the sliding rod 201 .

[0040] The inner wall of the sliding hole 302 is provided with a rectangular cavity 303 extending to the inside of the sliding plate 202 , and the inner wall of the rectangular cavity 303 is slidably connected with a tooth block 304 that meshes with the strip-shaped tooth grooves 301 .

[0041] A pull rod 305 extending to the front of the sliding plate 202 is fixedly provided on the surface of the tooth block 304, and a through hole extending to the front of the sliding plate 202 is opened on the inner wall of the rectangular cavity 303, the pull rod 305 is slidably connected to the inner wall of the through hole, and a pull plate 306 is fixedly provided at the end of the pull rod 305.

[0042] A tightening spring 307 is sleeved on the surface of the pull rod 305 , and two ends of the tightening spring 307 are fixedly connected to the inner wall of the rectangular cavity 303 and the surface of the tooth block 304 respectively.

[0043] In this embodiment, by providing the positioning assembly 300, after the sliding plate 202 is moved to a specified position, effective braking of the sliding plate 202 can be achieved, thereby effectively ensuring the stability of the laser cutting head 203 during the cutting process.

[0044] When the slitting device is working, when slitting the PET film 400, it can first determine the number of strip films that the PET film 400 can be cut into according to the size of the film label to be produced and the width of the PET film 400, and select the number of sliding plates 202 to be used, slide the number of sliding plates 202 below the corresponding position of the PET film 400, and observe the position of the triangular indicator plate 206 on the scale mark line 207 on the inclined platform 205 to determine the width of the strip film obtained after cutting, and after making the widths of the strip films consistent, the laser cutting host is connected to the sliding plate through the wire. After the joint 208 on 202 is connected, the PET film 400 is automatically cut, thereby achieving the purpose of accurately controlling the width of the cut strip film, and when moving the sliding plate 202, the pull plate 306 can be pulled outward and pulled left or right, which can drive the sliding plate 202 to move conveniently. After moving to the specified position, the pull plate 306 can be sent away. At this time, the tooth block 304 can slide into the strip tooth groove 301 under the action of the clamping spring 307, and engage with the strip tooth groove 301 to achieve effective braking of the sliding plate 202, thereby effectively ensuring the stability of the laser cutting head 203 during the cutting process.

[0045] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A laser cutting device for film label printing, characterized in that: include, A conveying assembly (100) is used to convey a PET film (400), the conveying assembly (100) comprising a fixed frame (101), a rotating shaft (102) rotatably arranged on inner walls on both sides of the fixed frame (101), and a rotating roller (103) fixedly arranged on the outer surface of the rotating shaft (102); A slitting assembly (200), comprising a sliding rod (201) fixedly mounted on the inner walls of both sides of a fixed frame (101), and a plurality of sliding plates (202) slidably mounted on the outer surface of the sliding rod (201), wherein a laser cutting head (203) is disposed on the upper surface of the sliding plate (202), and the slitting assembly (200) further comprises a connecting plate (204) fixedly mounted on the front surface of the sliding plate (202) and slidably connected to the inner bottom wall of the fixed frame (101), and an inclined platform (205) fixedly mounted on the front surface of the fixed frame (101), wherein a triangular indicating plate (206) slidably connected to the surface of the inclined platform (205) is fixedly mounted at the end of the connecting plate (204), and wherein a scale mark (207) corresponding to the tip of the triangular indicating plate (206) is disposed on the surface of the inclined platform (205); The positioning assembly (300) is used to position the sliding plate (202) and the sliding rod (201).

2. The laser cutting device for film label printing according to claim 1, characterized in that: The back side of the sliding plate (202) is provided with a connector (208) for connecting the laser cutting head (203) to an external laser cutting machine body via a wire.

3. The laser cutting device for film label printing according to claim 1, characterized in that: The positioning assembly (300) comprises a strip-shaped tooth groove (301) provided on the surface of the sliding rod (201), and a sliding hole (302) provided on the side of the sliding plate (202) and slidably connected to the surface of the sliding rod (201).

4. The laser cutting device for film label printing according to claim 3, characterized in that: The inner wall of the sliding hole (302) is provided with a rectangular cavity (303) extending to the interior of the sliding plate (202), and the inner wall of the rectangular cavity (303) is slidably connected with a tooth block (304) that meshes with the strip-shaped tooth grooves (301).

5. The laser cutting device for film label printing according to claim 4, characterized in that: A pull rod (305) extending to the front of the sliding plate (202) is fixedly provided on the surface of the tooth block (304), and a through hole extending to the front of the sliding plate (202) is opened on the inner wall of the rectangular cavity (303), the pull rod (305) is slidably connected to the inner wall of the through hole, and a pull plate (306) is fixedly provided at the end of the pull rod (305).

6. The laser cutting device for film label printing according to claim 5, characterized in that: A tightening spring (307) is sleeved on the surface of the pull rod (305), and two ends of the tightening spring (307) are respectively fixedly connected to the inner wall of the rectangular cavity (303) and the surface of the tooth block (304).

7. The laser cutting device for film label printing according to claim 1, characterized in that: The PET film (400) passes through the bottom end of the rotating roller (103), and an installation cavity is provided inside the frame body of the fixed frame (101), and a driving motor for driving the rotating shaft (102) to rotate is provided on the inner wall of the installation cavity.

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