Film reel cutting device

Abstract

The utility model relates to a film winding drum cutting device which comprises a machine table and a three-jaw chuck which is arranged on the machine table and can rotate, a rotating shaft is arranged in the middle of the three-jaw chuck, and a clamping space used for clamping the end of a paper tube is arranged between the rotating shaft and a movable clamping jaw of the three-jaw chuck. And a two-shaft cutting mechanism for cutting the paper tube is arranged behind the rotating shaft. The paper tube cutting device is simple in structure, reasonable in design, convenient to use and beneficial to improving the paper tube cutting efficiency.

Description

Technical Field

[0001] This utility model relates to a film roll cutting device. Background Technology

[0002] In daily life, plastic film is a thin film made of polyvinyl chloride, polyethylene, polypropylene, polystyrene, and other resins. It is used for packaging or as a coating layer. After completion, the plastic film is wound onto paper tubes for packaging, transportation, and sales. Different widths of plastic film need to be wound onto paper tubes of different widths, thus requiring the production of paper tubes of different lengths for matching. Traditionally, paper tubes are cut manually, which is time-consuming, labor-intensive, and inefficient. Utility Model Content

[0003] This invention addresses the aforementioned problem by providing a film roll cutting device that is simple in structure and easy to use.

[0004] The present invention is constructed as follows: it includes a machine base and a rotatable three-jaw chuck mounted on the machine base. A rotating shaft is provided in the middle of the three-jaw chuck. A clamping space for clamping the end of the paper tube is provided between the rotating shaft and the movable jaws of the three-jaw chuck. A two-axis cutting mechanism for cutting the paper tube is provided behind the rotating shaft.

[0005] Furthermore, the two-axis cutting mechanism includes a Y-axis guide rail mounted on the machine base, a Y-axis slide block movable along the Y-axis guide rail, an X-axis fixed seat mounted on the Y-axis slide block, an X-axis slide rail mounted on the X-axis fixed seat, an X-axis slide block movable along the X-axis slide rail, a cutting seat fixed on the X-axis slide block, and a cutting blade fixed on the cutting seat.

[0006] Furthermore, a support shaft is provided at the end of the rotating shaft away from the three-jaw chuck, and a liftable support is provided below the support shaft. The support is used to support the support shaft and rotate in cooperation with the support shaft.

[0007] Furthermore, a support cylinder is installed inside the machine tool, and the support cylinder is connected to the support via a lifting shaft that passes through the surface of the machine tool. The support is arc-shaped.

[0008] Furthermore, a cylinder mounting base is provided above the rear of the X-axis slide, and a cylinder is installed inside the cylinder mounting base. The output end of the cylinder is connected to a connecting plate provided on the X-axis slide.

[0009] Furthermore, the inner wall of the Y-axis slide block is provided with a Y-axis slider to cooperate with the Y-axis slide groove provided on the outer wall of the Y-axis guide rail. A slide table is provided below the Y-axis slide block, and a lead screw is threaded through the middle of the slide table. The slide table and the lead screw are threaded together, and the lead screw is driven to rotate by a lead screw motor.

[0010] Furthermore, the cylinder mounting base includes a front mounting plate and a rear mounting plate, which are connected by multiple bolts. The cylinder is installed between the front and rear mounting plates, and the rear mounting plate is fixed to the X-axis slide block.

[0011] Furthermore, the end of the rotating shaft is provided with a positioning protrusion, and the clamping space is located between the positioning protrusion and the movable jaw of the three-jaw chuck.

[0012] Furthermore, the three-jaw chuck is driven to rotate by a drive motor located inside the machine tool.

[0013] Furthermore, the diameter of the positioning protrusion is larger than the diameter of the rotating shaft.

[0014] Compared with the prior art, this utility model has the following advantages: The device has a simple structure, reasonable design, and is easy to use, which helps to improve the cutting efficiency of paper tubes. By inserting the uncut paper tube into the rotating shaft, the support cylinder drives the support to rise, and the support contacts and rotates with the support shaft of the rotating shaft; one end of the paper tube is pressed into the positioning protrusion and limited by the movable jaw of the three-jaw chuck; the drive motor drives the three-jaw chuck, the rotating shaft, and the paper tube to rotate synchronously; according to the required cutting length of the paper tube, the screw motor of the two-axis cutting mechanism drives the Y-axis slide to move to the appropriate position, and then the cylinder drives the X-axis slide to move along the X-axis slide rail to the position close to the paper tube, so that the cutting blade contacts the rotating paper tube, thereby cutting the paper tube; after the paper tube is cut, the cutting blade is reset, the movable jaw of the three-jaw chuck is unlocked, the support is reset, and the paper tube is taken out along the length direction of the rotating shaft. Attached Figure Description

[0015] Figure 1 This is a top view of an embodiment of the present utility model;

[0016] Figure 2 AA is a side sectional view of an embodiment of this utility model;

[0017] Figure 3 for Figure 1 Partial sectional view BB in the middle;

[0018] Figure 4 for Figure 1 A magnified view of a section at point C;

[0019] Figure 5 This is a schematic diagram of the screw motor, screw, and slide structure according to an embodiment of the present utility model. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0021] Example: Figures 1-5 As shown in the figure, this embodiment provides a film roll cutting device, including a machine base 1 and a rotatable three-jaw chuck 2 mounted on the machine base. A rotating shaft 3 is provided in the middle of the three-jaw chuck, and a positioning protrusion 6 is provided at the end of the rotating shaft. The rotating shaft, the positioning protrusion, and the three-jaw chuck are integrated. A clamping space 4 for clamping the end of the paper roll is provided between the positioning protrusion and the movable jaw 21 of the three-jaw chuck. A two-axis cutting mechanism 5 for cutting the paper roll is provided behind the rotating shaft.

[0022] During operation: The uncut paper tube 8 is inserted into the rotating shaft. The support cylinder drives the support to rise, and the support contacts and rotates with the support shaft of the rotating shaft. One end of the paper tube is pressed into the positioning protrusion and limited by the movable jaw of the three-jaw chuck. The drive motor drives the three-jaw chuck, the rotating shaft, and the paper tube to rotate synchronously. As needed to cut the paper tube to the required length, the lead screw motor of the two-axis cutting mechanism drives the Y-axis slide to move to the appropriate position. Then, the cylinder drives the X-axis slide to move along the X-axis slide rail to a position close to the paper tube, so that the cutting blade contacts the rotating paper tube, thereby cutting the paper tube. After the paper tube is cut, the cutting blade resets, the movable jaw of the three-jaw chuck unlocks, the support resets, and the paper tube is taken out along the length direction of the rotating shaft.

[0023] The aforementioned three-jaw chuck is existing technology. The three-jaw chuck consists of a chuck body, movable jaws, and a jaw drive mechanism, which will not be described in detail here.

[0024] In this embodiment of the utility model, the two-axis cutting mechanism 5 includes a Y-axis guide rail 501 disposed on the machine base, a Y-axis slide block 502 movable along the Y-axis guide rail, an X-axis fixed seat 503 mounted on the Y-axis slide block, an X-axis slide rail 504 disposed on the X-axis fixed seat, an X-axis slide block 505 movable along the X-axis slide rail, a cutting seat 506 fixed on the X-axis slide block, and a cutting blade 507 fixed on the cutting seat.

[0025] In this embodiment of the utility model, a cylinder fixing seat 508 is provided above the rear part of the X-direction slide, and a cylinder 509 is installed in the cylinder fixing seat. The cylinder output end is connected to a connecting plate 510 provided on the X-direction slide. The cylinder output shaft is provided with a U-shaped plate, and the U-shaped plate and the connecting plate are hinged together by a shaft.

[0026] In this embodiment of the utility model, the inner wall of the Y-axis slide block is provided with a Y-axis slider 511, which is used to cooperate with the Y-axis slide groove 512 provided on the outer wall of the Y-axis guide rail. A slide table 513 is provided below the Y-axis slide block, and a lead screw 514 is threaded through the middle of the slide table. The slide table and the lead screw are threaded together, and the lead screw is driven to rotate by a lead screw motor 515.

[0027] The cylinder mounting base 508 mentioned above includes a front mounting plate 516 and a rear mounting plate 517. The front and rear mounting plates are connected by multiple bolts 518. The cylinder is installed between the front and rear mounting plates. The rear mounting plate is fixed to the X-axis slide.

[0028] In this embodiment of the utility model, a support shaft 31 is provided at the end of the rotating shaft 3 away from the three-jaw chuck, and a liftable support 32 is provided below the support shaft. The support is used to support the support shaft and rotate in cooperation with the support shaft.

[0029] The aforementioned machine tool is equipped with a support cylinder 33, which is connected to the support via a lifting shaft 34. The lifting shaft passes through the surface of the machine tool, and the support is arc-shaped. The support supports the rotating shaft and improves stability.

[0030] In this embodiment of the invention, the three-jaw chuck is driven to rotate by a drive motor 7 located inside the machine tool.

[0031] In this embodiment of the invention, the diameter of the positioning protrusion is greater than the diameter of the rotating shaft.

[0032] Unless otherwise stated, if any of the technical solutions disclosed in this utility model discloses a numerical range, then the disclosed numerical range is a preferred numerical range. Any person skilled in the art should understand that the preferred numerical range is merely one among many feasible numerical values ​​that has a more obvious or representative technical effect. Because there are many numerical values, it is impossible to list them all. Therefore, this utility model discloses only some numerical values ​​to illustrate the technical solutions of this utility model. Furthermore, the numerical values ​​listed above should not constitute a limitation on the scope of protection of this utility model.

[0033] Meanwhile, if the present invention discloses or relates to mutually fixedly connected parts or structural components, then unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (e.g., using bolts or screws), or a non-detachable fixed connection (e.g., riveting, welding). Of course, the mutually fixed connection can also be replaced by an integral structure (e.g., manufactured by casting process) (except where it is obviously impossible to use an integral forming process).

[0034] In addition, unless otherwise stated, the terms used in any of the technical solutions disclosed in this utility model to indicate positional relationships or shapes include states or shapes that are similar to, close to, or approximate with those states or shapes.

[0035] Any component provided by this utility model can be assembled from multiple individual components, or it can be a single component manufactured by a one-piece molding process.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A film roll slitting apparatus characterized by comprising: The machine table and the three-jaw chuck arranged on the machine table and rotatable, the middle part of the three-jaw chuck is provided with a rotating shaft, the rotating shaft and the movable clamping jaw of the three-jaw chuck are provided with a clamping space for clamping the end of the paper tube, the rear of the rotating shaft is provided with two shaft cutting mechanisms for cutting the paper tube; The two shaft cutting mechanisms include a Y-direction guide rail arranged on the machine table, a Y-direction sliding seat movably arranged on the Y-direction guide rail, an X-direction fixed seat arranged on the Y-direction sliding seat, an X-direction sliding rail arranged on the X-direction fixed seat, an X-direction sliding seat movably arranged on the X-direction sliding rail, a cutting seat fixed on the X-direction sliding seat, and a cutting knife fixed on the cutting seat.

2. A film roll slitting apparatus according to claim 1, wherein The end of the rotating shaft away from the three-jaw chuck is provided with a supporting shaft, and the lower part of the supporting shaft is provided with a liftable supporting seat for supporting the supporting shaft and rotating with the supporting shaft.

3. A film roll slitting apparatus according to claim 2, wherein A supporting seat cylinder is arranged in the machine table and connected with the supporting seat through a lifting shaft penetrating the surface of the machine table, and the supporting seat is arc-shaped.

4. The film roll slitting apparatus of claim 1 wherein, A cylinder fixing seat is arranged on the rear upper part of the X-direction sliding seat, a cylinder is arranged in the cylinder fixing seat, and the output end of the cylinder is connected with a connecting plate arranged on the X-direction sliding seat.

5. The film roll slitting apparatus of claim 1 wherein, A Y-direction sliding block is arranged on the inner wall of the Y-direction sliding seat for cooperating with a Y-direction sliding groove arranged on the outer wall of the Y-direction guide rail, and a sliding table is arranged below the Y-direction sliding seat.

6. The film roll slitting apparatus of claim 4 wherein, The cylinder fixing seat includes a front fixing plate and a rear fixing plate, the front and rear fixing plates are connected through a plurality of bolts, the cylinder is arranged between the front and rear fixing plates, and the rear fixing plate is fixed on the X-direction sliding seat.

7. The film roll slitting apparatus of claim 1 wherein, The end of the rotating shaft is provided with a positioning protrusion, and the clamping space is arranged between the positioning protrusion and the movable clamping jaw of the three-jaw chuck.

8. The film roll slitting apparatus of claim 1 wherein, The three-jaw chuck is driven to rotate by a driving motor arranged in the machine table.

9. The film roll slitting apparatus of claim 7 wherein, The diameter of the positioning protrusion is larger than the diameter of the rotating shaft. The diameter of the positioning protrusion is larger than the diameter of the rotating shaft.

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