A cutting mechanism for polyurethane film

Abstract

The utility model discloses a kind of cutting mechanism for polyurethane film, including cutting table, the bottom of cutting table is fixedly connected with four corresponding distribution's supporting leg, the outside of cutting table is fixedly connected with two corresponding distribution's fixed plate, the top of two fixed plate is fixedly connected with connecting plate, the top of connecting plate is fixedly connected with first electric push rod, the output of first electric push rod is fixedly connected with cutting knife, the top of cutting table is provided with mobile flattening mechanism, the top of cutting table is provided with fixed mechanism. The mobile flattening mechanism of being set can be conveniently rolled and flattened to polyurethane film, so that polyurethane film is not wrinkled when cutting, and the cutting is more neat, the fixed mechanism of being set can be conveniently fixed to one end of polyurethane film, so that cutting is more convenient.

Description

Technical Field

[0001] This utility model belongs to the field of cutting mechanism technology, specifically relating to a cutting mechanism for polyurethane films. Background Technology

[0002] Polyurethane film, also known as PU film, is an environmentally friendly material with excellent elasticity and high lightness. Despite its extremely thin thickness (0.012-0.035mm), it exhibits unparalleled physical properties in terms of waterproofing (it can withstand water pressure of over 10,000mm water column). By incorporating hydrophilic agents into the material using advanced technology, the film not only possesses high waterproof performance but also excellent moisture permeability. When polyurethane film needs to be cut to a certain length, a cutting mechanism is required to cut it, thus facilitating user operation.

[0003] However, in actual use, those skilled in the art have found that most existing cutting mechanisms directly cut the polyurethane film during cutting. The polyurethane film tends to wrinkle when laid out on the cutting table, resulting in an uneven surface after cutting, which is inconvenient for users. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a cutting mechanism for polyurethane film, which has the advantages of conveniently flattening and fixing polyurethane film.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cutting mechanism for polyurethane film, comprising a cutting table, four correspondingly distributed support legs fixedly connected to the bottom of the cutting table, two correspondingly distributed fixing plates fixedly connected to the outside of the cutting table, a connecting plate fixedly connected to the top of the two fixing plates, a first electric push rod fixedly connected to the top of the connecting plate, a cutting blade fixedly connected to the output end of the first electric push rod, a movable flattening mechanism provided on the top of the cutting table, and a fixing mechanism provided on the top of the cutting table.

[0006] Preferably, the movable flattening mechanism includes four fixing plates, which are respectively fixedly connected to both sides of the cutting table. A threaded rod is rotatably connected inside each pair of fixing plates, and a threaded block is threadedly connected to the outside of each of the two threaded rods. A support plate is fixedly connected to the outside of each of the two threaded blocks. A limit plate is fixedly connected to the top of the two support plates, and a second electric push rod is fixedly connected to the top of the limit plate. A moving plate is fixedly connected to the output end of the second electric push rod, and two correspondingly distributed connecting blocks are fixedly connected to the bottom of the moving plate. A rotating shaft is fixedly connected inside the two connecting blocks, and a roller is rotatably connected to the outside of the rotating shaft.

[0007] Preferably, the cutting table has limit grooves on both sides, and the inner sides of the two threaded blocks are fixedly connected to limit blocks, which are slidably connected in the limit grooves.

[0008] Preferably, a drive wheel is fixedly connected to the outside of each of the two threaded rods, and a drive belt is rotatably connected to the outside of the two drive wheels. A mounting plate is fixedly connected to the outside of the cutting table, and a motor is fixedly connected to the top of the mounting plate. The output end of the motor is fixedly connected to one of the drive wheels.

[0009] Preferably, the fixing mechanism includes two limiting rods, both of which are movably inserted into the inside of the cutting table. A clamping plate is fixedly connected to the top of the two limiting rods, and a lifting plate is fixedly connected to the bottom of the two limiting rods. A bearing is provided at the bottom of the cutting table, and a screw is rotatably connected inside the bearing. The screw is threadedly connected inside the lifting plate.

[0010] Preferably, a protective pad is fixedly connected to the bottom of the clamping plate, and the protective pad is made of rubber.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. By placing the polyurethane film on the cutting table and fixing one end of the film, the motor is started. The transmission wheel fixed to the motor output begins to rotate, which in turn drives the transmission belt to rotate, driving another transmission wheel to rotate simultaneously. This rotation drives two threaded rods to rotate, which in turn moves two externally threaded blocks. This movement then moves the fixed support plate, the top fixed limit plate, and the second fixed electric push rod, which in turn moves the bottom roller. This roller then rolls and flattens the polyurethane film. When the film reaches one edge, the second electric push rod is activated, causing the fixed moving plate to move downwards, which in turn moves the roller downwards, thus fixing the other end of the polyurethane film. This makes it easier for the cutting blade to cut the film. This structure allows the polyurethane film to be straightened easily, resulting in cleaner cuts and greater user convenience.

[0013] 2. By placing the polyurethane film on top of the cutting table, rotating the screw, the threaded lifting plate moves downward, simultaneously moving the two fixed limit rods downward and the fixed clamping plate downward. The clamping plate then clamps and fixes the polyurethane film. The protective pads ensure that the polyurethane film is not damaged during clamping, making it more convenient for users. This structure can easily fix one end of the polyurethane film stably, making it easy to cut and reducing dimensional errors during cutting. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the overall side structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the overall back structure of this utility model;

[0017] Figure 4 This utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0018] In the diagram: 1. Cutting table; 2. Support leg; 3. Fixing plate; 4. First electric actuator; 5. Cutting blade; 6. Connecting plate; 7. Moving flattening mechanism; 701. Fixing plate; 702. Threaded rod; 703. Transmission wheel; 704. Limiting plate; 705. Second electric actuator; 706. Moving plate; 707. Connecting block; 708. Roller; 709. Rotating shaft; 710. Motor; 711. Mounting plate; 712. Transmission belt; 713. Threaded block; 714. Limiting block; 715. Limiting groove; 716. Support plate; 8. Fixing mechanism; 801. Clamping plate; 802. Protective pad; 803. Limiting rod; 804. Lifting plate; 805. Screw; 806. Bearing. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1:

[0021] Please see Figure 1-4This utility model provides a technical solution: a cutting mechanism for polyurethane film, including a cutting table 1, four correspondingly distributed support legs 2 fixedly connected to the bottom of the cutting table 1, two correspondingly distributed fixing plates 3 fixedly connected to the outside of the cutting table 1, a connecting plate 6 fixedly connected to the top of the two fixing plates 3, a first electric push rod 4 fixedly connected to the top of the connecting plate 6, a cutting blade 5 fixedly connected to the output end of the first electric push rod 4, a moving flattening mechanism 7 provided on the top of the cutting table 1, and a fixing mechanism 8 provided on the top of the cutting table 1.

[0022] In this embodiment, the movable flattening mechanism 7 can easily flatten the polyurethane film, so that the polyurethane film will not wrinkle when cutting and the cut will be more neat. The fixing mechanism 8 can easily fix one end of the polyurethane film, making cutting more convenient.

[0023] Example 2:

[0024] Please see Figure 1-4 Based on Embodiment 1, this utility model provides a technical solution: the movable flattening mechanism 7 includes four fixing plates 701, which are respectively fixedly connected to both sides of the cutting table 1. A threaded rod 702 is rotatably connected inside each pair of fixing plates 701. A threaded block 713 is threadedly connected to the outside of each pair of threaded rods 702. A support plate 716 is fixedly connected to the outside of each pair of threaded blocks 713. A limiting plate 704 is fixedly connected to the top of each of the two support plates 716. A second electric push rod 705 is fixedly connected to the top of the limiting plate 704. A moving plate 706 is fixedly connected to the output end of the second electric push rod 705. Two phases are fixedly connected to the bottom of the moving plate 706. Correspondingly distributed connecting blocks 707, with rotating shafts 709 fixedly connected inside the two connecting blocks 707, and rollers 708 rotatably connected to the outside of the rotating shafts 709. Limiting grooves 715 are opened on both sides of the cutting table 1. Limiting blocks 714 are fixedly connected to the inside of the two threaded blocks 713, and the limiting blocks 714 are slidably connected in the limiting grooves 715. Transmission wheels 703 are fixedly connected to the outside of the two threaded rods 702, and transmission belts 712 are rotatably connected to the outside of the two transmission wheels 703. A mounting plate 711 is fixedly connected to the outside of the cutting table 1, and a motor 710 is fixedly connected to the top of the mounting plate 711. The output end of the motor 710 is fixedly connected to one of the transmission wheels 703.

[0025] In this embodiment, when the polyurethane film needs to be rolled and flattened, the polyurethane film is first placed on the cutting table 1, then one end of the polyurethane film is fixed, and then the motor 710 is started. At this time, the transmission wheel 703 fixed to the output end of the motor 710 starts to rotate, and then starts to rotate through the transmission belt 712, which in turn drives another transmission wheel 703 to start rotating. At this time, both transmission wheels 703 start to rotate simultaneously, which in turn drives two threaded rods 702 to start rotating, which in turn drives the two externally threaded blocks 713 to move, which in turn drives the externally threaded blocks 713 to move, which in turn drives the fixed support plate 716 to move, and then drives the top... The fixed limiting plate 704 begins to move, which in turn drives the fixed second electric push rod 705 to move, which in turn drives the bottom roller 708 to move. The roller 708 then begins to move, rolling and flattening the polyurethane film. When the polyurethane film is flattened to one edge, the second electric push rod 705 is activated, which then drives the fixed moving plate 706 to move downward, which in turn drives the roller 708 to move downward, thereby fixing the other end of the polyurethane film. This makes it easier for the cutting blade 5 to cut it. This structure allows the polyurethane film to be straightened easily, resulting in a neater cut and making it more convenient for users.

[0026] Example 3:

[0027] Please see Figure 1-3 Based on Embodiments 1 and 2, this utility model provides a technical solution: the fixing mechanism 8 includes two limiting rods 803, both of which are movably inserted into the inside of the cutting table 1. A clamping plate 801 is fixedly connected to the top of the two limiting rods 803, and a lifting plate 804 is fixedly connected to the bottom of the two limiting rods 803. A bearing 806 is provided at the bottom of the cutting table 1, and a screw 805 is rotatably connected inside the bearing 806. The screw 805 is threadedly connected to the inside of the lifting plate 804. A protective pad 802 is fixedly connected to the bottom of the clamping plate 801. The protective pad 802 is made of rubber.

[0028] In this embodiment, when convenient cutting is required, the polyurethane film is first placed on the top of the cutting table 1. Then, the screw 805 is rotated, which drives the threaded lifting plate 804 to move downward, and at the same time drives the two fixed limit rods 803 to move downward, and at the same time drives the fixed clamping plate 801 to move downward. Then, the clamping plate 801 clamps and fixes the polyurethane film. The protective pad 802 ensures that the polyurethane film will not be damaged when clamping it, making it more convenient for users. This structure can easily fix one end of the polyurethane film stably, thereby facilitating the cutting of the polyurethane film and reducing dimensional errors during cutting.

[0029] The working principle and usage process of this utility model are as follows: When the polyurethane film needs to be rolled and flattened, firstly, the polyurethane film is placed on the cutting table 1, then one end of the polyurethane film is fixed, and then the motor 710 is started. At this time, the transmission wheel 703 fixed to the output end of the motor 710 starts to rotate, and then the transmission belt 712 starts to rotate, which in turn drives another transmission wheel 703 to rotate. At this time, the two transmission wheels 703 start to rotate simultaneously, which in turn drives the two threaded rods 702 to rotate, which in turn drives the two externally threaded blocks 713 to move, which in turn drives the externally threaded blocks 713 to move, which in turn drives the fixed support plate 716 to move, which in turn drives the fixed top limit plate 704 to move, which in turn drives the fixed second electric push rod 705 to move, which in turn drives the bottom roller 708 to move, which in turn drives the polyurethane film to roll and flatten it, and then flatten it to one end. When the edge is reached, the second electric actuator 705 is activated, which then moves the fixed movable plate 706 downward, and subsequently moves the set roller 708 downward, thereby fixing the other end of the polyurethane film, making it easier for the cutting blade 5 to cut it. This structure can easily straighten the polyurethane film, making the cut neater and more convenient for the user. When convenient cutting is needed, first place the polyurethane film on the top of the cutting table 1, then rotate the screw 805, which then moves the threaded lifting plate 804 downward, and simultaneously moves the two fixed limit rods 803 downward, and simultaneously moves the fixed clamping plate 801 downward. Then the clamping plate 801 clamps and fixes the polyurethane film. The set protective pad 802 can ensure that the polyurethane film will not be damaged when clamping the polyurethane film, making it more convenient for the user. This structure can easily fix one end of the polyurethane film stably, thereby facilitating the cutting of the polyurethane film and reducing dimensional errors during cutting.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cutting-off mechanism for polyurethane films, comprising a cutting table (1), characterized in that: The bottom of the cutting table (1) is fixedly connected to four correspondingly distributed support legs (2), and the outside of the cutting table (1) is fixedly connected to two correspondingly distributed fixed plates (3). The top of the two fixed plates (3) is fixedly connected to a connecting plate (6), and the top of the connecting plate (6) is fixedly connected to a first electric push rod (4). The output end of the first electric push rod (4) is fixedly connected to a cutting blade (5). The top of the cutting table (1) is provided with a moving flattening mechanism (7), and the top of the cutting table (1) is provided with a fixing mechanism (8).

2. A cutting mechanism for polyurethane film according to claim 1, characterized in that: The movable flattening mechanism (7) includes four fixed plates (701), which are fixedly connected to both sides of the cutting table (1). Each pair of fixed plates (701) is rotatably connected to a threaded rod (702). The two threaded rods (702) are threadedly connected to a threaded block (713) on the outside. The two threaded blocks (713) are fixedly connected to a support plate (716) on the outside. The top of the two support plates (716) is fixedly connected to a limiting plate (704). The top of the limiting plate (704) is fixedly connected to a second electric push rod (705). The output end of the second electric push rod (705) is fixedly connected to a moving plate (706). The bottom of the moving plate (706) is fixedly connected to two correspondingly distributed connecting blocks (707). The two connecting blocks (707) are fixedly connected to a rotating shaft rod (709) on the inside. The rotating shaft rod (709) is rotatably connected to a roller (708) on the outside.

3. A cutting mechanism for polyurethane film according to claim 2, characterized in that: The cutting table (1) has limit grooves (715) on both sides, and the inner sides of the two threaded blocks (713) are fixedly connected to limit blocks (714), which are slidably connected in the limit grooves (715).

4. A cutting mechanism for polyurethane film according to claim 2, characterized in that: Both threaded rods (702) are fixedly connected to the outside of a drive wheel (703), and the two drive wheels (703) are rotatably connected to a drive belt (712). The cutting table (1) is fixedly connected to the outside of a mounting plate (711), and a motor (710) is fixedly connected to the top of the mounting plate (711). The output end of the motor (710) is fixedly connected to one of the drive wheels (703).

5. A cutting mechanism for polyurethane film according to claim 1, characterized in that: The fixing mechanism (8) includes two limiting rods (803), both of which are movably inserted into the inside of the cutting table (1). The top of the two limiting rods (803) is fixedly connected to a clamping plate (801), and the bottom of the two limiting rods (803) is fixedly connected to a lifting plate (804). The bottom of the cutting table (1) is provided with a bearing (806), and a screw (805) is rotatably connected inside the bearing (806). The screw (805) is threadedly connected inside the lifting plate (804).

6. A cutting mechanism for polyurethane film according to claim 5, characterized in that: A protective pad (802) is fixedly connected to the bottom of the clamping plate (801), and the protective pad (802) is made of rubber.

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