Pressure adjusting type die-cutting machine
By using the magnetic roller and reciprocating groove roller structure of the pressure-adjustable die-cutting machine, precise control of the cutting force is achieved, solving the quality and smoothness problems of existing die-cutting machines when cutting difficult-to-cut materials, and improving cutting efficiency and tool life.
Patent Information
- Application Number
- CN202610011256.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-06
- Publication Date
- 2026-03-06
AI Technical Summary
When cutting difficult-to-cut materials, existing die-cutting machines have insufficient force between the blade and the material, resulting in poor cutting quality, poor cutting smoothness, and even damage to the blade or jamming of the material.
The pressure-regulating die-cutting machine uses a combination of magnetic rollers and magnetic blades, along with a reciprocating groove roller and a pressing mechanism driven by an electric motor, to achieve pressure regulation of the magnetic blades. The cutting force is controlled by the sliding of an arc disc within the spiral groove, and the downward pressure position and amplitude of the magnetic blades are adjusted by a hydraulic system.
It improves cutting strength and smoothness, protects the cutting tools, reduces energy consumption and cost, adapts to the cutting needs of different material thicknesses, and improves cutting quality and efficiency.
Smart Images
Figure CN121608237A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the technical field of die-cutting machines, and specifically relates to a pressure-adjustable die-cutting machine. Background Technology
[0002] A die-cutting machine is a mechanical device that uses a pre-set mold to cut and shape flexible materials such as paper, film, rubber, and metal foil. Its core function is to achieve precise cutting, creasing, punching, and other processing of materials. It is widely used in packaging, printing, electronics, building materials and other industries. Currently available die-cutting machines often suffer from poor cutting quality and inconsistent cutting smoothness when cutting certain difficult-to-cut materials. This is due to insufficient force between the cutter and the material, sometimes even damaging the cutter. Furthermore, the pressure between the cutter and the material needs to be varied to prevent excessive force from damaging the cutter or causing material jamming. This issue has become a pressing problem for those in the field. Summary of the Invention
[0003] The purpose of this invention is to provide a pressure-regulating die-cutting machine to solve the problems mentioned in the background art.
[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a pressure-adjustable die-cutting machine, comprising a die-cutting base, wherein a transmission roller, a bottom roller, and a magnetic roller are mounted on bearings between the left and right sides of the die-cutting base, the transmission roller being located below the bottom roller and the magnetic roller being located above the bottom roller, and a magnetic blade being magnetically connected to the outer side of the magnetic roller; the transmission roller is connected to an external drive motor and rotates thereon; gears are provided on one side of the transmission roller, the bottom roller, and the magnetic roller, and the gears mesh with each other; two guide pillars are fixed above the die-cutting base, and the guide pillars... Both sides are fixed with socket blocks, and each socket block is movably connected with a pressing wheel. The pressing wheel is in contact with the magnetic blade. A guide rod is fixed between the pressing wheels. A force-applying cavity is fixed in the middle of the guide post. A pressing mechanism is set inside the force-applying cavity. The pressing mechanism includes a sliding plate, a reciprocating grooved roller, and a motor. U-shaped grooves are opened on both sides of the force-applying cavity, and the guide rod is inserted into the U-shaped groove. The sliding plate is slidably connected to the inner wall of the force-applying cavity and rotatably connected to the guide rod. The reciprocating grooved roller is connected to the motor and drives the sliding plate to reciprocate.
[0005] The present invention further describes that the slide plate has a through hole in the middle, the reciprocating grooved roller is inserted into the through hole, the motor is fixedly installed above the inner wall of the force application cavity, and the output end is fixedly connected to an output shaft, and a limiter is provided on the outer side of the upper end of the output shaft; the upper end of the reciprocating grooved roller has a sliding groove, and protrusions are provided on the left and right sides of the inner wall of the sliding groove; the left and right sides of the output shaft have grooves, and are slidably connected to the protrusions of the sliding groove through the grooves; a shaft is rotatably connected to the inner wall of the through hole, and an arc disk is welded to the inner end of the shaft, the arc disk is embedded in the reciprocating grooved roller; a limiter block is welded to the inner wall of the force application cavity, and the limiter block is located above the slide plate.
[0006] The present invention further illustrates that the outer surface of the reciprocating grooved roller is provided with two spiral grooves, and the two spiral grooves are arranged opposite to each other. The arc disk is embedded in the spiral grooves and is slidably connected.
[0007] The present invention further illustrates that the inner wall of the force application cavity is integrally formed with a sleeve at the bottom, the inner wall of the sleeve is slidably connected with a hydraulic plate, and a sealing ring is provided at the slidable connection. The bottom of the hydraulic plate is filled with hydraulic oil. A hole is opened at the top of the sleeve, and a push rod is slidably connected to the inner wall of the hole. A round hole is opened at the bottom of the reciprocating groove roller, and the push rod is inserted into the round hole.
[0008] The present invention further illustrates that a limiting plate is fixed on the outer side of the top rod, and a movable groove is provided on the inner wall of the circular hole. The limiting plate is rotatably connected to the movable groove. The thickness of the movable groove is greater than the thickness of the limiting plate, that is, the two are movably connected.
[0009] The present invention further illustrates that the bottom of the sleeve is provided with a liquid hole, and is connected to an external hydraulic pump pipeline through the liquid hole.
[0010] The present invention further illustrates that after the hydraulic plate moves upward to its limit position, the upper end of the push rod contacts the upper part of the inside of the circular hole.
[0011] The present invention further illustrates that the upper end of the top rod and the upper end of the inner wall of the circular hole are both provided with semi-circular protrusions, and the two semi-circular protrusions fit together.
[0012] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: The present invention uses a reciprocating grooved roller, which drives the arc disk to move downward through the force, thereby increasing the pressure of the magnetic blade on the material to be cut and improving the cutting strength. When the arc disk moves to the bottom of one of the spiral grooves, since the two spiral grooves are in opposite directions, the arc disk is rotated through the shaft and enters the other spiral groove. At this time, the reciprocating grooved roller continues to rotate in the same direction, and through the other spiral groove, the arc disk moves upward inside it, thereby making the magnetic blade relatively loosen from the material to be cut, but not completely loosen, only reducing the squeezing force on the material to be cut. The force control during cutting is sometimes large and sometimes small, which can protect the blade and ensure the smoothness of cutting and ensure cutting efficiency. Furthermore, the electric motor only requires unidirectional rotation, which is simpler in structure and lower in cost compared to the reciprocating motion achieved by alternating rotation. The control circuit is simple, usually requiring only a simple switch or relay to control start and stop, without the need for complex direction control circuits. Due to the simple control, there is less energy loss in the circuit, resulting in low energy consumption and high reliability, making it suitable for continuous working scenarios such as die-cutting machines. Attached Figure Description
[0013] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a plan view of the die-cutting machine of the present invention; Figure 2 This is a schematic diagram showing the installation position of the force-applying cavity of the present invention; Figure 3 This is a schematic diagram of the internal structure of the force application cavity of the present invention; Figure 4 This is an exploded view of the pressing mechanism of the present invention; Figure 5 This is a cross-sectional view of the slide plate and reciprocating grooved roller of the present invention; Figure 6 This is an exploded view of the push rod, reciprocating grooved roller and output shaft of the present invention; In the diagram: 1. Die-cutting base; 2. Drive roller; 3. Bottom roller; 4. Magnetic roller; 5. Guide post; 51. Sleeve block; 52. Pressing roller; 53. Guide rod; 6. Force application chamber; 61. Slide plate; 62. Reciprocating grooved roller; 63. Motor; 64. Output shaft; 65. Shaft; 66. Arc disc; 67. Sleeve; 671. Hydraulic plate; 68. Push rod; 681. Limiting plate; 682. Semi-arc protrusion. Detailed Implementation
[0014] The following detailed, non-limiting description of the technical solution of the present invention, in conjunction with preferred embodiments and accompanying drawings, is provided. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0015] Please see Figures 1-6 The present invention provides a technical solution: a pressure-adjustable die-cutting machine, including a die-cutting base 1, a transmission roller 2, a bottom roller 3 and a magnetic roller 4 are mounted on the left and right sides of the die-cutting base 1 with bearings, the transmission roller 2 is located below the bottom roller 3, the magnetic roller 4 is located above the bottom roller 3, and a magnetic blade is magnetically connected to the outer side of the magnetic roller 4. The transmission roller 2 is connected to an external drive motor and rotates. Gears are provided on one side of the transmission roller 2, bottom roller 3, and magnetic roller 4, and the gears mesh with each other. Two guide posts 5 are fixed above the die-cutting seat 1. Sleeve blocks 51 are fixed on both the left and right sides of the guide posts 5. Pressing wheels 52 are movably connected inside the sleeve blocks 51. The pressing wheels 52 are in contact with the magnetic blade. Guide rods 53 are fixed between the pressing wheels 52. A force application cavity 6 is fixed in the middle of the guide posts 5. A pressing mechanism is provided inside the force application cavity 6. The pressing mechanism includes a slide plate 61, a reciprocating groove roller 62, and a motor 63. U-shaped grooves are opened on both the left and right sides of the force application cavity 6, and the guide rods 53 are inserted into the U-shaped grooves. The slide plate 61 is slidably connected to the inner wall of the force application cavity 6 and rotatably connected to the guide rods 53. The reciprocating groove roller 62 is connected to the motor 63 and drives the slide plate 61 to reciprocate. The bottom roller 3 has an adjustment function, which can compensate for the height difference of the magnetic roller 4, that is, the deviation between the height of the magnetic blade and the thickness of the material backing paper. It can easily make the backing paper without cutting marks, and improve the service life of the blade. The service life of the bottom roller 3 can be increased by 25-30%, and it has a very good die-cutting effect for thinner backing paper. When the material to be processed enters between the bottom roller 3 and the transmission roller 2, the motor 63 runs, which drives the slide plate 61 to move up and down through the reciprocating groove roller 62. The slide plate 61 drives the pressing wheel 52 to move up and down through the guide rod 53, so that it moves up and down within the sleeve block 51. The pressing wheel 52 presses and then releases the magnetic blade, which on the one hand increases the cutting force, thereby improving the cutting smoothness and cutting quality, and on the other hand avoids the magnetic blade from being damaged due to excessive continuous force, thus affecting the service life of the magnetic blade.
[0016] The slide plate 61 has a through hole in the middle, the reciprocating grooved roller 62 is inserted into the through hole, the motor 63 is fixedly installed on the upper inner wall of the force application cavity 6, and the output end is fixedly connected to the output shaft 64, and the upper outer side of the output shaft 64 is provided with a limit. The upper end of the reciprocating grooved roller 62 is provided with a sliding groove, and the inner wall of the sliding groove is provided with protrusions on the left and right sides. The output shaft 64 is provided with grooves on the left and right sides, and is slidably connected to the protrusions of the sliding groove through the grooves. The inner wall of the through hole is rotatably connected to the shaft 65, and the inner end of the shaft 65 is welded with an arc disk 66. The arc disk 66 is embedded in the reciprocating grooved roller 62. The inner wall of the force application cavity 6 is welded with a limit block, and the limit block is located above the slide plate 61.
[0017] The outer surface of the reciprocating grooved roller 62 is provided with two spiral grooves, which are arranged opposite to each other. The arc disk 66 is embedded in the spiral grooves and is slidably connected. When the motor 63 runs, it drives the reciprocating grooved roller 62 to rotate via the output shaft 64, causing the arc disk 66 to slide within the spiral groove of the reciprocating grooved roller 62. The arc disk 66 moves downward through the force, and the arc disk 66 drives the slide plate 61 to slide downward along the inner wall of the force application cavity 6 via the shaft 65, thereby increasing the pressure of the magnetic blade on the material to be cut and increasing the cutting strength. When the arc disk 66 moves to the bottom of one of the spiral grooves, since the two spiral grooves are in opposite directions, the arc disk 66 is rotated by the shaft 65 and enters the other spiral groove. At this time, the reciprocating grooved roller 62 continues to rotate in the same direction, and through the other spiral groove, the arc disk 66 moves upward within it, thereby causing the magnetic blade to relatively loosen the material to be cut, but not completely loosen it, only reducing the squeezing force on the material to be cut. The force control during cutting is sometimes large and sometimes small, which can protect the blade and ensure the smoothness of cutting and ensure cutting efficiency. Furthermore, the drive method of motor 63 only requires unidirectional rotation. Compared with the reciprocating motion achieved by alternating rotation, it has a simple structure, low cost, and simple control circuit. Usually, only a simple switch or relay is needed to control the start and stop. There is no need for complex direction control circuit. Due to the simple control, there is less energy loss in the circuit, low energy consumption, and high reliability. It is suitable for continuous working scenarios such as die-cutting machines.
[0018] The inner wall of the force application chamber 6 is integrally formed with a sleeve 67. The inner wall of the sleeve 67 is slidably connected with a hydraulic plate 671, and a sealing ring is provided at the slidable connection. The bottom of the hydraulic plate 671 is filled with hydraulic oil. A hole is opened at the top of the sleeve 67, and a push rod 68 is slidably connected to the inner wall of the hole. A round hole is opened at the bottom of the reciprocating groove roller 62, and the push rod 68 is inserted into the round hole.
[0019] A limiting plate 681 is fixed to the outer side of the top rod 68, and a movable groove is provided on the inner wall of the round hole. The limiting plate 681 is rotatably connected to the movable groove. The thickness of the movable groove is greater than the thickness of the limiting plate 681, meaning the two are movably connected. When the reciprocating groove roller 62 rotates, the arc disk 66 is subjected to force and fits tightly against the inner wall of the spiral groove, thereby causing the reciprocating groove roller 62 to be subjected to upward force. When subjected to upward force, a limit is generated between the limiting plate 681 on the outside of the push rod 68 and the inner wall of the movable groove. At the same time, the hydraulic plate 671 moves upward, and the gas above it is compressed, thereby limiting the reciprocating groove roller 62 to prevent the reciprocating groove roller 62 from moving upward excessively and affecting the downward pressing process of the magnetic blade. Furthermore, during the cutting process of the magnetic blade, the reciprocating groove roller 62 rotates and is subjected to force through the top rod 68, thereby improving the stability of the reciprocating groove roller 62 during rotation, so as to accurately control the stability when the cutting force increases and decreases.
[0020] The bottom of the sleeve 67 is provided with a liquid hole, and is connected to an external hydraulic pump pipeline through the liquid hole; For materials of different thicknesses to be cut, the maximum downward pressure position of the magnetic blade needs to be adjusted. At this time, the external hydraulic pump pumps hydraulic oil into the sleeve 67 through the pipeline, which increases the hydraulic pressure below the hydraulic plate 671, thereby pushing the hydraulic plate 671 to move upward. The push rod 68 pushes the reciprocating groove roller 62 to move upward, while the arc disk 66 slides in the spiral groove. The slide plate 61 is limited and reaches the limit position. As the reciprocating groove roller 62 continues to move upward, the stroke of the reciprocating groove roller 62 driving the arc disk 66 to move back and forth is reduced, thereby controlling the downward pressure and the downward amplitude of the magnetic blade. This adapts to different types of materials to be cut, has a wider range of applications, and provides better protection for the blade and the material.
[0021] After the hydraulic plate 671 moves upward to its limit position, the upper end of the push rod 68 contacts the upper part of the inside of the circular hole; When cutting thinner materials, the external hydraulic pump operates, and the hydraulic plate 671 moves upward to its limit position, minimizing the stroke of the reciprocating grooved roller 62 driving the arc disk 66 to reciprocate. At the same time, the upper end of the push rod 68 is pressed against the top of the inner hole. When the motor 63 drives the reciprocating grooved roller 62 to rotate, the push rod 68 generates high-intensity friction with the top of the inner hole, thereby slowing down the speed of the motor 63 to control the speed at which the magnetic blade presses down and releases the material to be cut, resulting in a smoother cut surface and a significant improvement in cutting quality. Furthermore, since it reduces the speed of the motor 63, there is no need to add equipment such as a speed reducer or frequently change the operating power of the motor 63, thereby reducing costs or energy consumption.
[0022] The upper end of the push rod 68 and the upper end of the inner wall of the round hole are both provided with semi-circular protrusions 682, and the two semi-circular protrusions 682 fit together. When the upper end of the push rod 68 is subjected to high-intensity extrusion friction with the upper end of the circular hole, the semi-circular protrusion 682 inside the circular hole slips on the semi-circular protrusion 682 at the upper end of the push rod 68. During the slippage process, the reciprocating groove roller 62 continuously generates slight jumping, which causes the arc disk 66 to jump continuously, causing the magnetic blade to jump. This not only enables cutting but also avoids material damage caused by high-intensity cutting when cutting thinner materials, further improving the cutting accuracy and quality.
[0023] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.
[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features, and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. A pressure-regulated die cutting machine comprising a die cutting seat (1), characterized in that: The transmission roller (2) is connected with an external driving motor and rotates, one side of the transmission roller (2), the bottom roller (3) and the magnetic roller (4) is provided with a gear, and the gears are meshed with each other, the upper portion of the die cutting seat (1) is fixed with two guide columns (5), the left and right sides of the guide column (5) are fixed with sleeve blocks (51), the inside of the sleeve block (51) is movably connected with pressing wheels (52), the pressing wheels (52) are in contact with the magnetic blade, the pressing wheels (52) are fixed with guide rods (53), the middle of the guide column (5) is fixed with a force applying cavity (6), the inside of the force applying cavity (6) is provided with a pressing mechanism, the pressing mechanism comprises a sliding plate (61), a reciprocating groove roller (62) and a motor (63), the left and right sides of the force applying cavity (6) are provided with U-shaped grooves, and the guide rods (53) are inserted into the U-shaped grooves, the sliding plate (61) is slidably connected to the inner wall of the force applying cavity (6) and is rotatably connected with the guide rods (53), the reciprocating groove roller (62) is connected with the motor (63) and drives the sliding plate (61) to make reciprocating motion. The middle of the sliding plate (61) is provided with a through hole, the reciprocating groove roller (62) is inserted into the through hole, the motor (63) is fixedly installed on the upper portion of the inner wall of the force applying cavity (6) and is fixedly connected with an output shaft (64) at the output end, and the outer side of the upper end of the output shaft (64) is provided with a limit; 2. A pressure-regulated die cutting machine according to claim 1, characterized in that: The upper end of the reciprocating groove roller (62) is provided with a sliding groove, the left and right sides of the inner wall of the sliding groove are provided with protrusions, the left and right sides of the output shaft (64) are provided with grooves, and the grooves are slidably connected with the protrusions of the sliding groove, the inner wall of the through hole is rotatably connected with a shaft rod (65), the inner end of the shaft rod (65) is welded with a circular arc disc (66), the circular arc disc (66) is embedded in the reciprocating groove roller (62), the inner wall of the force applying cavity (6) is welded with a limiting block, and the limiting block is located above the sliding plate (61). The outer surface of the reciprocating groove roller (62) is provided with two spiral grooves, and the two spiral grooves are oppositely arranged, the circular arc disc (66) is embedded in the spiral groove and is slidably connected.
3. A pressure-regulated die cutting machine according to claim 2, characterized in that: The inner wall of the force applying cavity (6) is integrally formed with a sleeve (67) at the bottom, the inner wall of the sleeve (67) is slidably connected with a hydraulic plate (671), and a sealing ring is arranged at the sliding connection position, the bottom of the hydraulic plate (671) is filled with hydraulic oil, the upper portion of the sleeve (67) is provided with a hole, and the inner wall of the hole is slidably connected with a jacking rod (68), the bottom of the reciprocating groove roller (62) is provided with a circular hole, and the jacking rod (68) is inserted into the circular hole.
4. A pressure-regulated die cutting machine according to claim 3, characterized in that: The outer side of the jacking rod (68) is fixedly connected with a limiting plate (681), the inner wall of the circular hole is provided with a movable groove, and the limiting plate (681) is rotatably connected in the movable groove.
5. A pressure-regulated die cutting machine according to claim 4, characterized in that: The thickness of the movable groove is greater than the thickness of the limiting plate (681), that is, the two are movably connected.
6. A pressure-regulated die cutting machine according to claim 5, characterized in that: The bottom of the sleeve (67) is provided with a liquid hole, and is connected with an external hydraulic pump pipeline through the liquid hole.
7. A pressure-regulated die cutting machine according to claim 6, characterized in that: After the hydraulic plate (671) moves upward to the limit position, the upper end of the ejector rod (68) is in contact with the upper part inside the circular hole.
8. A pressure-regulated die cutting machine according to claim 7, characterized in that: The upper end of the ejector rod (68) and the inner wall upper end of the circular hole are both provided with semicircular protrusions (682), and the two semicircular protrusions (682) are matched with each other.