Active secondary film covering device of cutting bed

Abstract

The utility model discloses a cutting bed active secondary film covering device, which comprises a rear film roller and a film roller assembly which are distributed front and back, the rear film roller is fixed on one end of a cutting bed through a rear bracket, the film roller assembly is positioned on the rear side of a tool bit, the film roller assembly comprises a fixed plate arranged on a cutting bed cross beam, a rotating shaft is fixed on the fixed plate, and the rotating shaft is fixed on the rotating shaft. A first rotating plate and a second rotating plate are rotationally connected to the rotating shaft, a gear is rotationally connected to the other end of the first rotating plate and used for being meshed with a rack on a cutting bed, and a film roller assembly is connected to the other end of the second rotating plate through a bearing. The first rotating plate is rotationally connected with the gear and the first synchronous belt wheel, the gear meshed with the rack is made to rotate through movement of the cross beam, the synchronous belt is further made to operate, the film roller assembly is driven to rotate, a film is wound and unwound, the film is laid on a cut area, the pressure of fabric is guaranteed, and it is guaranteed that a notch is smooth.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting machines, in particular to an active secondary film covering device for a cutting machine bed. Background Art

[0002] When a cutting machine cuts soft materials, generally a film is laid on the fabric, and a negative pressure is generated by a vacuum device to press the film on the surface of the fabric, so that the fabric is in an extrusion device, improving the smoothness of the cut holes. There will be cuts on the path where the cutting knife passes, and air leakage will occur at the cuts, affecting the vacuum degree of the film, further affecting the pressure on the surface of the material. The soft materials around the cuts often cannot maintain a compressed state and expand, affecting the smoothness of the remaining cuts around, also affecting the size of the cut pieces, and in more serious cases, affecting the movement of the machine head, thus affecting the quality of the cut pieces. Therefore, an active secondary film covering device for a cutting machine bed is designed. By covering the film in the cut area, the air leakage situation is reduced, the vacuum degree of the film is ensured, the pressure of the fabric is made uniform, and the cut quality is improved. Content of the Utility Model

[0003] The purpose of the utility model is to provide an active secondary film covering device for a cutting machine bed, so that the secondarily covered film actively winds and unwinds following the movement of the cross beam, keeps consistent with the movement of the cross beam, covers on the surface of the cut soft material, ensures the pressure around the cuts, and ensures the smoothness of the cuts of adjacent cut pieces.

[0004] The utility model provides the following technical solution: an active secondary film covering device for a cutting machine bed, including a rear film roller and a film roller assembly distributed front and back. The rear film roller is fixed to one end of the cutting machine bed through a rear support. The film roller assembly is located behind the tool head and includes a fixing plate installed on the cross beam of the cutting machine bed. A rotating shaft is fixed on the fixing plate. A first rotating plate and a second rotating plate are rotatably connected to the rotating shaft. A gear is rotatably connected to the other end of the first rotating plate. The gear is used to mesh with a rack on the cutting machine bed. The other end of the second rotating plate is connected with a film roller assembly through a bearing. A double-row synchronous pulley is also rotatably connected to the rotating shaft. A second synchronous pulley is also rotatably connected to the end of the film roller assembly. A first synchronous pulley is also rotatably connected to the first rotating plate. The first synchronous pulley is located on one side of the gear and the first synchronous pulley and the gear are on the same axis. The first synchronous pulley and the second synchronous pulley are both connected to the double-row synchronous pulley through a synchronous belt.

[0005] In order to keep the film in a tensioned state, the film roller assembly includes shaft heads on both sides. Dampers are connected to the inner sides of the shaft heads on both sides. A film roller is connected between the dampers on both sides.

[0006] In order to limit the rotation angle of the first rotating plate, threaded holes are provided on the fixed plate in an up-and-down distribution, and a first limiting shaft is connected in the threaded hole. The first limiting shaft is located below the first rotating plate.

[0007] In order to limit the angle of the second rotating plate, a second limiting shaft is fixed on the second rotating plate. An arc-shaped hole is provided on the first rotating plate, and the end of the second limiting shaft is inserted into the arc-shaped hole.

[0008] In order to make the synchronous belt taut, a first tensioning cam is rotatably connected to the first rotating plate, and a second tensioning cam is rotatably connected to the second rotating plate. Both the first tensioning cam and the second tensioning cam are located inside the synchronous belt. Bearings are sleeved on both the first tensioning cam and the second tensioning cam, and the bearings are used to tension the synchronous belt.

[0009] In order to adjust the height of the film, a rear film roller positioning hole is provided on the rear support. The rear film roller positioning hole includes a vertical strip hole, and a plurality of obliquely distributed holes are provided on one side of the strip hole. The obliquely distributed holes are communicated with the strip hole and are all obliquely downward.

[0010] Compared with the prior art, the beneficial effects achieved by the present utility model are as follows:

[0011] (1) By installing the fixed plate on the cross beam, rotatably connecting the first rotating plate and the second rotating plate on the fixed plate through a rotating shaft, rotatably connecting the gear on the first rotating plate, meshing the gear with the rack of the cutting machine, and rotatably connecting the film roller assembly on the second rotating plate, with the film roller assembly located behind the cutter head, the film between the film roller assembly and the rear film roller can cover the cut area of the cutting machine, reducing air leakage, improving the vacuum degree of the film, ensuring the pressure on the fabric, and improving the smoothness of the cut.

[0012] (2) A first synchronous pulley is arranged on one side of the gear, a double-row synchronous pulley is arranged on the rotating shaft, and a second synchronous pulley is arranged on one side of the film roller assembly on the second rotating plate. The rotation of the gear drives the rotation of the first synchronous pulley, enabling the synchronous belt to run sequentially, and also enabling the film roller assembly to rotate to open or wind up the film. Description of the Drawings

[0013] The drawings are used to provide further understanding of the present utility model and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0014] Figure 1 is the overall structural schematic diagram of the present utility model;

[0015] Figure 2 is the structural schematic diagram of one end of the film roller of the present utility model;

[0016] Figure 3 It is a sectional view of the end of the film roller of the present utility model;

[0017] Figure 4 It is a schematic structural diagram of the other end of the film roller of the present utility model;

[0018] In the figure: 1. Rear film roller; 2. Rear bracket; 21. Rear film roller positioning hole; 3. Film roller; 4. Damper; 5. Shaft head; 51. Second synchronous pulley; 6. Second rotating plate; 61. Second tensioning cam; 62. Double-row synchronous pulley; 7. Fixed plate; 71. Rotating shaft; 72. First limiting shaft; 73. Threaded hole; 8. First rotating plate; 81. First synchronous pulley; 82. First tensioning cam; 83. Arc-shaped hole; 84. Second limiting shaft; 9. Gear. Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model. Embodiment

[0020] Please refer to Figure 1 and 2, the present utility model provides a technical solution: an active secondary film covering device for a cutting machine, including a rear film roller 1 and a film roller assembly distributed front and back. The rear film roller 1 is fixed to one end of the cutting machine through a rear bracket 2. The film roller assembly is located behind the cutter head on the crossbeam. The film roller assembly and the crossbeam move synchronously. When the cutting machine performs cutting, the crossbeam will drive the film roller assembly to move. A thin film is provided between the rear film roller 1 and the film roller assembly, and the thin film is covered again on the already cut area, ensuring the vacuum degree of the cut area and the uniformity of the pressure on the fabric, and improving the smoothness of the cut. It includes a fixing plate 7 installed on the crossbeam of the cutting machine. A rotating shaft 71 is fixed on the fixing plate 7. A first rotating plate 8 and a second rotating plate 6 are rotatably connected to the rotating shaft 71 through a bushing. A gear 9 is rotatably connected to the other end of the first rotating plate 8. The gear 9 is used to engage with a rack on the cutting machine. The rack is installed and fixed on the side of the upper surface of the cutting machine. The movement of the crossbeam will drive the gear 9 to move along the rack, causing the gear 9 to rotate. The other end of the second rotating plate 6 is connected to the film roller assembly through a bearing. A double-row synchronous pulley 62 is also rotatably connected to the rotating shaft 71 through a bearing. A second synchronous pulley 51 is also rotatably connected to the end of the film roller assembly. A first synchronous pulley 81 is also rotatably connected to the first rotating plate 8. The first synchronous pulley 81 is located on one side of the gear 9, and the first synchronous pulley 81 and the gear 9 are on the same axis. The rotation of the gear 9 will drive the first synchronous pulley 81 to rotate, causing the synchronous belt to rotate. Both the first synchronous pulley 81 and the second synchronous pulley 51 are connected to the double-row synchronous pulley 62 through a synchronous belt, driving the double-row synchronous pulley 62 to rotate, causing the second synchronous pulley 51 to rotate, and making the film roller assembly rotate. The rotation of the film roller assembly will cause the thin film on the surface of the film roller assembly to be released or wound up.

[0021] The film roller assembly includes shaft heads 5 on both sides. The shaft heads 5 are connected to the inside of the second rotating plate 6 through bearings. Dampers 4 are connected to the inner sides of the shaft heads 5 on both sides. A film roller 3 is connected between the dampers 4 on both sides. The dampers 4 are installed after the thin film is wound on the film roller 3. The dampers 4 cause a speed difference in the rotation of the film roller 3, apply pressure to the thin film, keep the thin film in a tensioned state, and make the movement of the thin film more stable.

[0022] Two threaded holes 73 are provided on the fixing plate 7 and are distributed vertically. A first limiting shaft 72 is connected in the threaded holes 73. The first limiting shaft 72 is located below the first rotating plate 8. The rotation height of the first rotating plate 8 is limited by the first limiting shaft 72. At the same time, the first limiting shaft 72 can be inserted into the upper threaded hole 73 to increase the height of the first rotating plate 8, further raising the height of the gear 9, so that the gear 9 no longer meshes with the rack on the cutting machine, realizing the suspension of the film covering function.

[0023] A second limiting shaft 84 is fixed on the second rotating plate 6. An arc-shaped hole 83 is formed on the first rotating plate 8. The end of the second limiting shaft 84 is inserted into the arc-shaped hole 83. The position of the second limiting shaft 84 is limited through the arc-shaped hole 83, further restricting the rotation angle of the second rotating plate 6 and adjusting the height of the film roller assembly.

[0024] As Figure 2 and 4 shown, a first tensioning cam 82 is rotatably connected to the first rotating plate 8 through a pin shaft, and a second tensioning cam 61 is also rotatably connected to the second rotating plate 6 through a pin shaft. Both the first tensioning cam 82 and the second tensioning cam 61 are located inside the synchronous belt. Bearings are sleeved on both the first tensioning cam 82 and the second tensioning cam 61. The bearings are used to tension the synchronous belt. By using the first tensioning cam 82 and the second tensioning cam 61, the synchronous belt is supported to keep the synchronous belt in a tensioned state, making the transmission of the synchronous belt more stable.

[0025] A rear film roller positioning hole 21 is formed on the rear bracket 2. The rear film roller positioning hole 21 includes a vertical strip hole. A plurality of obliquely distributed holes are formed on one side of the strip hole. The obliquely distributed holes are communicated with the strip hole and are all obliquely downwardly distributed. The obliquely distributed holes can position the position of the rear film roller 1, adjust the height of the rear film roller 1, and further adjust the height of the secondary film covering, so that the height of the secondary film covering can adapt to fabrics of different thicknesses.

[0026] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An active secondary film laminating device for a cutting machine, comprising a rear film roller and a film roller assembly distributed front and back, the rear film roller is fixed to one end of the cutting machine through a rear bracket, and is characterized in that: The membrane roller assembly is located at the rear side of the cutter head and includes a fixed plate mounted on the crossbeam of the cutting table. A rotating shaft is fixed on the fixed plate. A first rotating plate and a second rotating plate are rotatably connected to the rotating shaft. A gear is rotatably connected to the other end of the first rotating plate. The gear is used to mesh with the rack on the cutting table. The other end of the second rotating plate is connected with the membrane roller assembly through a bearing. A double-row synchronous pulley is also rotatably connected to the rotating shaft. A second synchronous pulley is also rotatably connected to the end of the membrane roller assembly. A first synchronous pulley is also rotatably connected to the first rotating plate. The first synchronous pulley is located on one side of the gear and is on the same axis as the gear. The first synchronous pulley and the second synchronous pulley are both connected to the double-row synchronous pulley through a synchronous belt.

2. The active secondary film laminating device for a cutting machine according to claim 1, wherein: The membrane roller assembly includes shaft heads on both sides. Dampers are connected to the inner sides of the shaft heads on both sides. A membrane roller is connected between the dampers on both sides.

3. The active secondary film laminating device for a cutting machine according to claim 1, wherein: Threaded holes are formed in the fixed plate and are distributed vertically. A first limiting shaft is connected in the threaded hole. The first limiting shaft is located below the first rotating plate.

4. The active secondary film laminating device for a cutting machine according to claim 1, wherein: A second limiting shaft is fixed on the second rotating plate. An arc-shaped hole is formed in the first rotating plate. The end of the second limiting shaft is inserted into the arc-shaped hole.

5. The active secondary film laminating device for a cutting machine according to claim 1, characterized in that: A first tensioning cam is rotatably connected to the first rotating plate. A second tensioning cam is rotatably connected to the second rotating plate. The first tensioning cam and the second tensioning cam are both located inside the synchronous belt. Bearings are sleeved on the first tensioning cam and the second tensioning cam. The bearings are used to tension the synchronous belt.

6. The active secondary film laminating device for a cutting machine according to claim 1, wherein: A rear membrane roller positioning hole is formed in the rear bracket. The rear membrane roller positioning hole includes a vertical strip hole. A plurality of inclined holes distributed vertically are formed on one side of the strip hole. The inclined holes are communicated with the strip hole and are all distributed obliquely downward.

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