Gummed paper cutting device

Abstract

The utility model discloses a back gummed paper cutting device which comprises a base, a movable plate, a pressing plate and a lifting mechanism, a supporting plate is fixedly arranged above the base, the movable plate is arranged below the supporting plate in a sliding mode, a cutting knife is detachably arranged at the bottom of the movable plate, the pressing plate is arranged below the movable plate in a sliding mode, a vertical rod is fixedly arranged at the top of the pressing plate, and the lifting mechanism is arranged above the vertical rod. The top of the vertical rod is convexly provided with an outer edge, the bottom of the movable plate is provided with a sleeve, the sleeve is provided with an inner cavity, the top of the vertical rod is slidably inserted into the inner cavity, a pressure spring is arranged between the vertical rod and the top wall of the inner cavity, and the lifting mechanism is arranged on the supporting plate and can drive the movable plate to move up and down. Through the arrangement, the back gummed paper can be tightly pressed by the pressing plate when the movable plate moves upwards, the cut position of the back gummed paper is prevented from being adhered to the cutting knife, meanwhile, the vertical rod is dragged through the sleeve, the pressing rod can be reset, the gap between the pressing plate and the base is prevented from being shortened after the pressing plate is used for a long time and before the cutting work starts, and the service life of the device is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of adhesive paper processing technology, specifically relating to an adhesive paper cutting device. Background Technology

[0002] Adhesive-backed paper refers to paper with a layer of adhesive on the back. It is widely used for various purposes such as advertising and labeling. Adhesive-backed paper is generally designed to be easy to use; users only need to peel off the protective layer on the back to stick it directly.

[0003] Chinese patent CN221248954U discloses a die-cutting device for self-adhesive stickers. The device includes a base plate with a bracket fixedly mounted on it. A cylinder is fixedly mounted on the bracket, and a cutting blade is fixedly connected to the piston rod of the cylinder. Connecting plates are fixedly connected to both sides of the cutting blade. A movable rod is fixedly mounted on the base plate, and a fixed plate is movably mounted on the movable rod. A second spring is positioned between the connecting plate and the fixed plate. The device utilizes the cylinder to push the cutting blade downwards, which in turn pushes the fixed plate downwards. The fixed plate presses down on the sticker on the worktable. As the cutting blade continues to move, it compresses the second spring, cutting the sticker and then resetting. The second spring pushes the fixed plate against the sticker, preventing the cutting blade from adhering to the cut edge of the sticker and thus preventing the sticker from scattering.

[0004] The above solution involves a spring that is movably installed on the movable rod below the fixed plate to drive the fixed plate to reset. However, during use, when the spring becomes fatigued due to long-term use, its elastic coefficient decreases, and when bearing the same weight, its deformation increases. This leads to a shortening of the distance between the fixed plate and the base plate, resulting in a reduction in the number of stickers that can be cut at one time and a shorter service life. Utility Model Content

[0005] The present invention aims to provide an adhesive paper cutting device to solve the problem of short service life of the above-mentioned solutions.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A paper-backed cutting device includes a base, a movable plate, a pressure plate, and a lifting mechanism. A support plate is fixedly mounted on the top of the base. The movable plate is slidably mounted below the support plate. A cutting blade is detachably mounted on the bottom of the movable plate. The pressure plate is slidably mounted below the movable plate. A through groove is provided on the pressure plate below the cutting blade. Vertical rods are fixedly mounted on both sides of the through groove on the top of the pressure plate. An outer edge protrudes from the top of the vertical rods. A sleeve with an inner cavity is provided at the bottom of the movable plate. The top of the vertical rods is slidably inserted into the inner cavity. A compression spring is provided between the vertical rods and the top wall of the inner cavity. The bottom of the outer edge can abut against the bottom wall of the inner cavity. The lifting mechanism is mounted on the support plate and can drive the movable plate to move up and down.

[0008] The principle and effects of this technical solution:

[0009] In the initial state, the bottom of the outer edge is hung on the bottom wall of the inner cavity, and the lower edge of the cutting blade is higher than the lower edge of the pressure plate. The adhesive paper to be cut is placed on the top of the base, and the lifting mechanism is driven to move the movable plate downward. The movable plate drives the cutting blade downward, and the pressure plate moves downward under the action of gravity until the pressure plate contacts the adhesive paper to be cut. The movable plate continues to move downward, and the top of the inner cavity and the vertical rod compress the compression spring, giving it elasticity. In turn, the compression spring pushes the pressure plate to press the adhesive paper tightly through the vertical rod. At the same time, the movable plate pushes the cutting blade through the through groove and cuts the adhesive paper. After the lifting mechanism is driven to raise the movable plate, the compression spring continues to push the pressure plate to press the adhesive paper tightly until the bottom of the outer edge abuts against the bottom wall of the inner cavity again. Then the sleeve drags the vertical rod and the pressure plate to return to the starting position.

[0010] With the above configuration, a compression spring is installed between the vertical rod and the top wall of the inner cavity, allowing the bottom of the outer edge to abut against the bottom wall of the inner cavity. This enables the pressure plate to press the adhesive paper firmly when the movable plate is moved upward, preventing the cut edge of the adhesive paper from adhering to the cutting blade. At the same time, by dragging the vertical rod with the sleeve, the pressure rod can be reset, preventing the pressure plate from shortening the gap between itself and the base before the cutting work begins after long-term use, thus extending the service life of the device.

[0011] In this utility model, guide rods are fixedly installed on the left and right sides of the top of the base, and the top of the guide rods is fixedly connected to the support plate. The two ends of the movable plate and the pressure plate are slidably sleeved on the corresponding guide rods. The lifting mechanism includes a motor, a crankshaft and a connecting rod. The motor is fixedly installed on the support plate, the crankshaft is rotatably installed above the movable plate in a transverse direction and is connected to the output shaft of the motor. The top of the connecting rod is rotatably connected to the crankshaft, and the bottom of the connecting rod is rotatably connected to the top of the movable plate.

[0012] In this invention, the output shaft of the motor is keyed to one end of the crankshaft.

[0013] The principle and effects of this technical solution:

[0014] The motor drives the crankshaft to rotate, which in turn causes the top of the connecting rod to rotate circumferentially. Because the guide rod restricts the horizontal movement of the movable plate, it drives the movable plate to move up and down.

[0015] The above settings achieve the purpose of driving the lifting mechanism to move the movable plate vertically.

[0016] In this invention, the bottom of the movable plate is fixedly provided with connecting shafts on both sides of the cutting blade, and the top of the inner sidewalls of the two inner cavities are threadedly connected to the corresponding connecting shafts.

[0017] The principle and effects of this technical solution:

[0018] When the compression spring becomes fatigued, rotate the sleeve to separate the pressure plate and the movable plate, remove the old compression spring and place a new compression spring in the inner cavity, and then reconnect the top of the inner wall of the inner cavity to the corresponding connecting shaft with a thread.

[0019] The above-mentioned design makes it easier for staff to replace the compression spring in the inner cavity, reducing the maintenance cost of this device.

[0020] In this utility model, a protruding strip is fixedly provided at the bottom of the movable plate, and a groove is recessed at the bottom of the protruding strip. The top of the cutting blade is movably engaged in the groove, and a plurality of first through holes are spaced apart at the top of the side wall of the cutting blade along the horizontal direction. Second through holes aligned with the first through holes are respectively provided on the inner walls of both sides of the groove.

[0021] The principle and effects of this technical solution:

[0022] The top of the cutting blade is inserted into the slot, and each first through hole is aligned with the corresponding second through hole. One end of the bolt is passed through the second through hole and the first through hole in sequence. A nut is fitted onto one end of the bolt, so that the other end of the bolt and the nut press against the outer walls of both sides of the protrusion to fix the cutting blade.

[0023] The above setup allows workers to easily remove dull cutting blades for maintenance or replacement.

[0024] In this utility model, a pad is fixedly provided on the top of the base between the two guide rods.

[0025] In this invention, the top of the pad is provided with a groove below the cutting blade.

[0026] The above settings ensure that the cutting blade completely cuts the adhesive paper to be cut, thus ensuring the cutting effect of this device on the adhesive paper. Attached Figure Description

[0027] Figure 1 This is an isometric view of the overall structure of this utility model;

[0028] Figure 2 Disassembly of the components of this utility model Figure 1 ;

[0029] Figure 3 Disassembly of the components of this utility model Figure 2 ;

[0030] Figure 4 This is a partial sectional view of the present invention. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:

[0032] The reference numerals in the accompanying drawings include: 10, base; 11, support plate; 12, guide rod; 13, pad; 131, groove; 20, movable plate; 21, sleeve; 211, inner cavity; 22, compression spring; 23, connecting shaft; 24, protrusion; 241, slot; 242, second through hole; 30, cutting blade; 31, first through hole; 40, pressure plate; 41, through groove; 42, vertical rod; 421, outer edge; 50, lifting mechanism; 51, motor; 52, crankshaft; 53, connecting rod.

[0033] As attached Figure 1-4 As shown, this utility model discloses an adhesive paper cutting device, including a base 10, a movable plate 20, a pressure plate 40, and a lifting mechanism 50. A support plate 11 is fixedly arranged above the base 10. The movable plate 20 is slidably arranged below the support plate 11. A cutting blade 30 is detachably arranged at the bottom of the movable plate 20. The pressure plate 40 is slidably arranged below the movable plate 20. A through groove 41 is provided on the pressure plate 40 below the cutting blade 30. The top of the pressure plate 40... Vertical rods 42 are fixedly installed on both sides of the through groove 41. The top of the vertical rods 42 is provided with an outer edge 421. The bottom of the movable plate 20 is provided with a sleeve 21. The sleeve 21 has an inner cavity 211. The top of the vertical rods 42 is slidably inserted into the inner cavity 211. A compression spring 22 is provided between the vertical rods 42 and the top wall of the inner cavity 211. The bottom of the outer edge 421 can abut against the bottom wall of the inner cavity 211. The lifting mechanism 50 is provided on the support plate 11 and can drive the movable plate 20 to move up and down.

[0034] In this embodiment, guide rods 12 are fixedly installed on the left and right sides of the top of the base 10, and the top of the guide rods 12 are fixedly connected to the support plate 11. The two ends of the movable plate 20 and the pressure plate 40 are slidably sleeved on the corresponding guide rods 12. The lifting mechanism 50 includes a motor 51, a crankshaft 52 and a connecting rod 53. The motor 51 is fixedly installed on the support plate 11. The crankshaft 52 is rotatably installed above the movable plate 20 and is connected to the output shaft of the motor 51. The top of the connecting rod 53 is rotatably connected to the crankshaft 52, and the bottom of the connecting rod 53 is rotatably connected to the top of the movable plate 20.

[0035] In this embodiment, the output shaft of the motor 51 is keyed to one end of the crankshaft 52.

[0036] In this embodiment, the bottom of the movable plate 20 is fixedly provided with connecting shafts 23 on both sides of the cutting blade 30, and the top of the inner sidewalls of the two inner cavities 211 are threadedly connected to the corresponding connecting shafts 23.

[0037] In this embodiment, a protrusion 24 is fixedly provided at the bottom of the movable plate 20, and a groove 241 is recessed at the bottom of the protrusion 24. The top of the cutting blade 30 is movably engaged in the groove 241, and a plurality of first through holes 31 are opened at horizontal intervals on the top of the side wall of the cutting blade 30. Second through holes 242 aligned with the first through holes 31 are respectively opened on the inner walls of both sides of the groove 241.

[0038] In this embodiment, a pad 13 is fixedly disposed on the top of the base 10 between the two guide rods 12.

[0039] In this embodiment, a groove 131 is provided on the top of the pad 13 below the cutter 30.

[0040] The specific implementation process is as follows:

[0041] In the initial state, the bottom of the outer edge 421 is hung on the bottom wall of the inner cavity 211, and the lower edge of the cutting blade 30 is higher than the lower edge of the pressure plate 40. The adhesive paper to be cut is placed on the top of the base 10, and the lifting mechanism 50 is driven to move the movable plate 20 downward. The movable plate 20 drives the cutting blade 30 to move downward, and the pressure plate 40 moves downward under the action of gravity until the pressure plate 40 contacts the adhesive paper to be cut. The movable plate 20 continues to move downward, and the top of the inner cavity 211 and the vertical rod 42 The compression spring 22 is compressed to give it elasticity, which in turn causes the compression spring 22 to push the pressure plate 40 to press the adhesive paper through the vertical rod 42. At the same time, the movable plate 20 pushes the cutting blade 30 through the through groove 41 to cut the adhesive paper. After the lifting mechanism 50 is driven to lift the movable plate 20, the compression spring 22 continues to push the pressure plate 40 to press the adhesive paper until the bottom of the outer edge 421 abuts against the bottom wall of the inner cavity 211 again. Then the sleeve 21 drags the vertical rod 42 and the pressure plate 40 to return to their original position.

[0042] The motor 51 drives the crankshaft 52 to rotate, which in turn causes the top of the connecting rod 53 to rotate circumferentially. Because the guide rod 12 restricts the horizontal movement of the movable plate 20, it drives the movable plate 20 to move up and down.

[0043] When the compression spring 22 becomes fatigued, rotate the sleeve 21 to separate the pressure plate 40 and the movable plate 20, remove the old compression spring 22 and place a new compression spring 22 in the inner cavity 211, and then thread the top of the inner wall of the inner cavity 211 to the corresponding connecting shaft 23.

[0044] The top of the cutting blade 30 is secured in the slot 241, and each of the first through holes 31 is aligned with the corresponding second through holes 242. One end of the bolt is passed through the second through hole 242 and the first through hole 31 in sequence, and a nut is fitted onto one end of the bolt so that the other end of the bolt and the nut press against the outer walls of both sides of the protrusion 24 to fix the cutting blade 30.

[0045] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A device for cutting adhesive-backed paper, characterized by The utility model provides a cutting device, including: The base top fixedly provided with support plate; The movable plate is slidably arranged below the support plate, and the bottom of the movable plate is detachably provided with a cutting knife; The pressing plate is slidably arranged below the movable plate, and the pressing plate is provided with a through slot below the cutting knife. The top of the pressing plate is fixedly provided with a vertical rod on both sides of the through slot. The top of the vertical rod is provided with an outer edge. The bottom of the movable plate is provided with a sleeve. The sleeve has an inner cavity. The top of the vertical rod is slidably inserted into the inner cavity. A compression spring is arranged between the vertical rod and the top wall of the inner cavity. The bottom of the outer edge can abut against the bottom wall of the inner cavity. The lifting mechanism is arranged on the support plate and can drive the movable plate to move up and down.

2. The gummed paper cutting apparatus of claim 1, wherein: The left and right sides of the top of the base are respectively fixedly provided with guide rods. The top of the guide rod is fixedly connected with the support plate. The two ends of the movable plate and the pressing plate are respectively slidably sleeved on the corresponding guide rods. The lifting mechanism includes a motor, a crankshaft and a connecting rod. The motor is fixedly arranged on the support plate. The crankshaft is arranged above the movable plate in a transverse rotating manner and is in transmission connection with the output shaft of the motor. The top of the connecting rod is in rotating connection with the crankshaft. The bottom of the connecting rod is in rotating connection with the top of the movable plate.

3. The gummed paper cutting apparatus of claim 2, wherein: The output shaft of the motor is in key connection with one end of the crankshaft.

4. The gummed paper cutting apparatus of claim 3, wherein: The bottom of the movable plate is fixedly provided with a connecting shaft on both sides of the cutting knife. The top of the inner side wall of the two inner cavities is in screw connection with the corresponding connecting shaft.

5. The gummed paper cutting apparatus of claim 4, wherein: The bottom of the movable plate is fixedly provided with a convex strip. The bottom of the convex strip is concavely provided with a clamping groove. The top of the cutting knife is movably clamped in the clamping groove. The top of the side wall of the cutting knife is provided with a plurality of first through holes in a transverse direction. The two side walls of the clamping groove are respectively provided with second through holes in alignment with the first through holes.

6. The gummed paper cutting apparatus of any one of claims 2-5, wherein: The top of the base is fixedly provided with a pad between the two guide rods.

7. The gummed paper cutting apparatus of claim 6, wherein: The top of the pad is provided with a groove below the cutting knife.

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