Air suction conveying device of die-cutting machine

Abstract

An air suction conveying device of a die-cutting machine comprises a lower pressing plate and a draught fan, an air suction shaft is rotationally arranged on one side of the lower pressing plate, a plurality of sets of air suction wheels are arranged on the air suction shaft, a plurality of sets of air suction holes are evenly formed in the air suction wheels in the circumferential direction of the air suction wheels, and air suction bases communicated with the draught fan are arranged at the positions, corresponding to the air suction wheels, of the lower pressing plate. An air suction channel is formed in the air suction base, the port of the air suction channel of the air suction base extends to the inner side of the air suction wheel and is matched with the air suction hole, and the air suction base generates suction force on materials passing through the air suction wheel through the air suction hole so that the materials can be attached to the surface of the air suction wheel; according to the continuous vacuum adsorption device, continuous and high-stability local vacuum adsorption is carried out on passing materials in the continuous rotating process, the materials can be tightly and flatly attached to the rotating conveying surface, sliding, wrinkling or floating is prevented, and the continuous vacuum adsorption device is particularly suitable for high-speed and precise conveying scenes.

Description

Technical Field

[0001] This utility model relates to a conveying device, and more particularly to a pneumatic conveying device for a die-cutting machine. Background Technology

[0002] In the field of automated processing and conveying of lightweight and flexible materials such as paper, film, and non-woven fabrics, including processes such as printing, lamination, and slitting, achieving efficient, stable, and damage-free material conveying is a crucial technical aspect. Traditional conveying methods, such as friction roller conveyors or belt conveyors, mainly rely on contact friction to drive the material forward. However, for materials with smooth surfaces, easy deformation, or extremely high surface quality requirements, especially thin materials, slippage, deviation, or surface scratches can easily occur during conveying, making it difficult to meet the demands of modern high-precision production. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies and provide a high-efficiency, stable, continuous and uniform negative pressure adsorption conveying device for a die-cutting machine.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a wind suction conveying device for a die-cutting machine, including a lower pressure plate and a fan. A suction shaft is rotatably provided on one side of the lower pressure plate. Several sets of suction wheels are provided on the suction shaft. Several sets of suction holes are evenly opened on the suction wheels along their circumference. The lower pressure plate is provided with a suction seat communicating with the fan at each set of suction wheels. A suction channel is opened in the suction seat. The port of the suction channel of the suction seat extends to the inner side of the suction wheel and matches the suction hole. The suction seat generates suction force on the material passing through the suction wheel through the suction hole, causing it to adhere to the surface of the suction wheel.

[0005] By adopting the above structure, the fixed suction seat is combined with the rotating suction wheel, and the suction channel port extends directly to the inner side of the suction wheel and dynamically matches with the circumferentially distributed suction holes. This achieves continuous and highly stable local vacuum adsorption of the material passing through during continuous rotation, so that the material (especially flexible or thin materials) can be tightly and flatly attached to the rotating conveying surface, preventing slippage, wrinkling or floating. It is particularly suitable for high-speed and precision conveying scenarios.

[0006] Preferably, the lower pressure plate is provided with a side bearing seat, the suction seat is rotatably mounted on the side bearing seat, and the side bearing seat is also provided with a drive motor for driving the suction shaft to rotate.

[0007] Preferably, the lower pressure plate has an intermediate bearing seat between the two side bearing seats to support the rotation of the suction shaft, and the suction wheels and suction seats on both sides of the suction shaft are symmetrically arranged. With this structure, multi-point support effectively reduces deflection and vibration during high-speed rotation of the long shaft, ensuring concentricity. The symmetrical layout ensures balanced force on both sides, extends service life, and allows for easy adjustment of the number of suction wheels and suction seats to adapt to the conveying needs of materials of different widths.

[0008] Preferably, the upper surface of the lower pressure plate is provided with a template, and the side bearing seat and the middle bearing seat are provided with a front clamping plate on the side away from the lower pressure plate. A transition plate is provided between the front clamping plate and the lower pressure plate through a strong magnetic block. With the above structure, the transition plate can be disassembled and installed without tools, which is convenient for cleaning, replacing worn parts or adjusting process parts, and also facilitates quick adjustment of the gap according to the material thickness.

[0009] Preferably, the transition plate has a wheel hole corresponding to the suction wheel for the suction wheel to pass through, and a guide plate is inclined downward on the side of the wheel hole away from the lower pressure plate. With the above structure, the guide plate can guide the material to smoothly enter and leave the adsorption area, preventing jamming or edge curling.

[0010] Preferably, the suction wheel includes a support wheel sleeved on the suction shaft, and a suction ring is provided on one side of the support wheel. The suction ring is integrally formed with the support wheel, and a plurality of suction grooves are evenly provided on the surface of the suction ring along its circumference. Each set of suction grooves has a plurality of suction holes penetrating through it. This structure helps to disperse the airflow, reduce the load on individual suction holes, and improve the overall adsorption efficiency and stability of the system.

[0011] Preferably, the suction holes in adjacent sets of suction slots are staggered. This structure increases the effective adsorption area, allowing for more adsorption points within a limited space. During the rotation of the suction ring, when transitioning from one set of suction slots to the next, it ensures that some areas of the suction holes in both sets of suction slots are connected to the suction channel, forming a uniform and uninterrupted adsorption force field. This prevents localized material pressure loss or vibration caused by gaps in the holes.

[0012] Preferably, the lower side of the suction base, corresponding to the suction channel, is provided with a branch pipe connector for connection to the fan. The upper side of the suction base is provided with an extension plate extending to the inner side of the suction ring. The upper side of the extension plate and the upper side of the suction base are provided with an extension channel communicating with the suction channel. The extension channel is covered with a cover plate, and the cover plate is provided with a protrusion. The top of the protrusion is an arc-shaped structure that matches the inner wall of the suction ring. The protrusion is provided with an adsorption port communicating with the extension channel at the suction hole. With the above structure, the arc-shaped protrusion slides tightly against the inner wall of the suction ring, greatly reducing gas leakage between the adsorption chamber and the outside, and ensuring vacuum.

[0013] Preferably, the width of the adsorption port is greater than the distance between two adjacent sets of suction grooves on the suction ring. With this structure, the wide adsorption port design allows it to cover multiple suction holes simultaneously, ensuring that even at high speeds, there are always suction holes within the effective adsorption area as material passes through, achieving near-seamless continuous adsorption and avoiding pulsation of adsorption force.

[0014] This invention utilizes the synergistic effect of a dynamically sealed, staggered, porous suction wheel and a wide-area integrated adsorption seat to construct a highly efficient, stable, continuous, and uniform negative pressure adsorption and conveying system. This solves the industry problems of slippage, wrinkling, and inaccurate positioning of flexible materials during high-speed conveying, and is particularly suitable for high-end automated equipment in industries such as textiles, printing, packaging, non-woven fabrics, and films. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0016] Figure 2 This is a schematic diagram of the suction shaft of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the suction wheel and suction base of this utility model;

[0018] Figure 4 This is a cross-sectional view of the suction wheel and suction base of this utility model;

[0019] Figure 5 This is a utility model Figure 4 Enlarged view of point A;

[0020] Figure 6 This is an exploded structural diagram of the suction seat of this utility model.

[0021] In the diagram: 1. Lower pressure plate; 11. Template; 2. Suction shaft; 3. Suction wheel; 31. Suction hole; 32. Support wheel; 33. Suction ring; 34. Suction groove; 4. Suction seat; 41. Suction channel; 42. Pipe connector; 43. Extension plate; 44. Extension channel; 45. Cover plate; 46. Protrusion; 47. Adsorption port; 5. Side bearing seat; 6. Drive motor; 7. Intermediate bearing seat; 8. Front clamp plate; 9. Transition plate; 91. Strong magnet; 92. Wheel hole; 93. Guide plate. Detailed Implementation

[0022] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0023] Example: Figures 1 to 5The illustrated air suction conveying device for a die-cutting machine includes a lower pressure plate 1 and a fan. A suction shaft 2 is rotatably mounted on one side of the lower pressure plate 1. Several sets of suction wheels 3 are mounted on the suction shaft 2. Several sets of suction holes 31 are evenly distributed along the circumference of each suction wheel 3. The lower pressure plate 1 has a suction seat 4 corresponding to each set of suction wheels 3, which is connected to the fan. A suction channel 41 is formed inside the suction seat 4. The port of the suction channel 41 extends to the inner side of the suction wheel 3 and matches the suction hole 31. The suction seat 4 passes through the suction hole... The suction force generated by the suction wheel 3 causes the material passing through it to adhere to the surface of the suction wheel 3. The fixed suction seat 4 is combined with the rotating suction wheel 3, and the port of the suction channel 41 extends directly to the inner side of the suction wheel 3 and dynamically matches with the circumferentially distributed suction holes 31. This achieves continuous and highly stable local vacuum adsorption of the material passing through during continuous rotation, so that the material (especially flexible or thin materials) can adhere tightly and flatly to the rotating conveying surface, preventing slippage, wrinkling or floating. It is particularly suitable for high-speed and precision conveying scenarios.

[0024] The lower pressure plate 1 is provided with a side bearing seat 5, and the suction seat 4 is rotatably mounted on the side bearing seat 5. The side bearing seat 5 is also provided with a drive motor 6 for driving the suction shaft 2 to rotate. The lower pressure plate 1 is provided with an intermediate bearing seat 7 between the two side bearing seats 5 for supporting the rotation of the suction shaft 2. The suction wheels 3 and suction seats 4 on both sides of the suction shaft 2 are symmetrically arranged. The multi-point support effectively reduces the deflection and vibration when the long shaft rotates at high speed, ensures concentricity, and the symmetrical layout makes the force on both sides balanced, extends the service life, and makes it easy to increase or decrease the number of suction wheels 3 and suction seats 4 to adapt to the conveying needs of materials with different widths.

[0025] The upper surface of the lower pressure plate 1 is provided with a template 11. The side bearing seat 5 and the middle bearing seat 7 are provided with a front clamping plate 8 on the side away from the lower pressure plate 1. A transition plate 9 is provided between the front clamping plate 8 and the lower pressure plate 1 through a strong magnetic block 91. The transition plate 9 can be disassembled and installed without tools, which is convenient for cleaning, replacing worn parts or adjusting process parts, and also convenient for quickly adjusting the gap according to the material thickness. The transition plate 9 is provided with a wheel hole 92 corresponding to the suction wheel 3 for the suction wheel 3 to pass through. The wheel hole 92 is provided with a guide plate 93 on the side away from the lower pressure plate 1. The guide plate 93 can guide the material to smoothly enter and leave the adsorption area, preventing jamming or edge curling.

[0026] The suction wheel 3 includes a support wheel 32 sleeved on the suction shaft 2. A suction ring 33 is provided on one side of the support wheel 32. The suction ring 33 is integrally formed with the support wheel 32. Several sets of suction grooves 34 are evenly provided on the surface of the suction ring 33 along its circumference. Several suction holes 31 are provided through each set of suction grooves 34, which helps to disperse the airflow, reduce the load on a single suction hole 31, and improve the overall adsorption efficiency and stability of the system. The suction holes 31 in two adjacent sets of suction grooves 34 are staggered to increase the effective adsorption area and arrange more adsorption points in a limited space. During the rotation of the suction ring 33, when transitioning from the previous set of suction grooves 34 to the next set of suction grooves 34, it is ensured that some areas of the suction holes 31 in the two sets of suction grooves 34 can be connected with the suction channel 41 to form a uniform and uninterrupted adsorption force field, avoiding local pressure loss or vibration of the material due to gaps in the holes.

[0027] The lower side of the suction base 4, corresponding to the suction channel 41, is provided with a pipe connector 42 for connecting to the fan. The upper side of the suction base 4 is provided with an extension plate 43 extending to the inner side of the suction ring 33. The upper side of the extension plate 43 and the upper side of the suction base 4 are provided with an extension channel 44 communicating with the suction channel 41. The extension channel 44 is covered with a cover plate 45. The cover plate 45 is provided with a protrusion 46. The top of the protrusion 46 is an arc-shaped structure that matches the inner wall of the suction ring 33. The protrusion 46 is provided with a connecting pipe connector 42 corresponding to the suction hole 31. The adsorption port 47 of the extended channel 44 has an arc-shaped protrusion 46 that slides close to the inner wall of the suction ring 33, which greatly reduces gas leakage between the adsorption chamber and the outside world and ensures vacuum. The width of the adsorption port 47 is greater than the distance between two adjacent sets of suction grooves 34 on the suction ring 33. The wide adsorption port 47 is designed to cover multiple suction holes 31 at the same time. Even at high speed, it can ensure that when the material passes through, there are always suction holes 31 in the effective adsorption area, realizing almost seamless continuous adsorption and avoiding the pulsation of adsorption force.

[0028] This invention utilizes the synergistic effect of a dynamically sealed, staggered, porous suction wheel 3 and a wide-area integrated adsorption seat to construct a highly efficient, stable, continuous, and uniform negative pressure adsorption and conveying system. This solves the industry problems of slippage, wrinkling, and inaccurate positioning of flexible materials during high-speed conveying, and is particularly suitable for high-end automated equipment in industries such as textiles, printing, packaging, non-woven fabrics, and films.

Claims

1. A suction conveying device for a die-cutting machine, comprising a lower pressure plate (1) and a fan, wherein a suction shaft (2) is rotatably provided on one side of the lower pressure plate (1), characterized in that: The suction shaft (2) is provided with several sets of suction wheels (3), and several sets of suction holes (31) are evenly opened on the suction wheels (3) along their circumference. The lower pressure plate (1) is provided with a suction seat (4) connected to the fan at each set of suction wheels (3). A suction channel (41) is opened in the suction seat (4). The port of the suction channel (41) of the suction seat (4) extends to the inside of the suction wheel (3) and matches the suction hole (31). The suction seat (4) generates suction force on the material passing through the suction wheel (3) through the suction hole (31) so that it adheres to the surface of the suction wheel (3).

2. The air suction conveying device for the die-cutting machine according to claim 1, characterized in that: The lower pressure plate (1) is provided with a side bearing seat (5), the suction seat (4) is rotatably mounted on the side bearing seat (5), and the side bearing seat (5) is also provided with a drive motor (6) for driving the suction shaft (2) to rotate.

3. The air suction conveying device for the die-cutting machine according to claim 2, characterized in that: The lower pressure plate (1) has an intermediate bearing seat (7) between the two side bearing seats (5) for supporting the rotation of the suction shaft (2). The suction wheel (3) and suction seat (4) on both sides of the suction shaft (2) are symmetrically arranged.

4. The air suction conveying device for the die-cutting machine according to claim 2, characterized in that: The upper surface of the lower pressure plate (1) is provided with a template (11), and the side bearing seat (5) and the middle bearing seat (7) are provided with a front clamping plate (8) on the side away from the lower pressure plate (1). A transition plate (9) is provided between the front clamping plate (8) and the lower pressure plate (1) through a strong magnetic block (91).

5. The air suction conveying device for the die-cutting machine according to claim 4, characterized in that: The transition plate (9) has a wheel hole (92) for the suction wheel (3) to pass through at the corresponding position of the suction wheel (3). The wheel hole (92) is provided with a guide plate (93) on the side away from the lower pressure plate (1).

6. The air suction conveying device for the die-cutting machine according to claim 1, characterized in that: The suction wheel (3) includes a support wheel (32) sleeved on the suction shaft (2). A suction ring (33) is provided on one side of the support wheel (32). The suction ring (33) is integrally formed with the support wheel (32). Several sets of suction grooves (34) are evenly provided on the surface of the suction ring (33) along its circumference. Several suction holes (31) are provided through each set of suction grooves (34).

7. The air suction conveying device for the die-cutting machine according to claim 6, characterized in that: The air intake holes (31) in the two adjacent sets of air intake slots (34) are arranged alternately.

8. The air suction conveying device for the die-cutting machine according to claim 6, characterized in that: The suction seat (4) is provided with a pipe connector (42) connected to the fan at the lower side corresponding to the suction channel (41). The suction seat (4) is provided with an extension plate (43) extending to the inner side of the suction ring (33) at the upper side. The upper side of the extension plate (43) and the upper side of the suction seat (4) are provided with an extension channel (44) communicating with the suction channel (41). The extension channel (44) is covered with a cover plate (45). The cover plate (45) is provided with a protrusion (46). The top of the protrusion (46) is an arc-shaped structure that matches the inner wall of the suction ring (33). The protrusion (46) is provided with an adsorption port (47) communicating with the extension channel (44) at the suction hole (31).

9. The air suction conveying device for the die-cutting machine according to claim 8, characterized in that: The width of the adsorption port (47) is greater than the distance between two adjacent sets of suction grooves (34) on the suction ring (33).

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