A die-cutting device
By using a combination of sensors and drivers in the die-cutting equipment, the position of the tension roller and the speed of the conveyor roller are automatically adjusted, solving the problem of frequent traction force settings when changing rolls frequently, achieving constant tension of the strip and improving roll changing efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN LLMACHINECO LTD
- Filing Date
- 2025-07-03
- Publication Date
- 2026-07-10
AI Technical Summary
In die-cutting equipment, frequent changes of material rolls require frequent adjustments of traction force, which increases the workload of operators and affects roll changing efficiency.
The design employs a combination of mounting frame, conveyor roller assembly, tension roller, sensor, and driver. The sensor detects the position of the tension roller and adjusts the rotation speed of the conveyor roller to keep the tension roller between the first and second positions. It uses its own gravity to tension the material belt, thus achieving constant tension regulation.
After the roll is changed, the material strip is under constant tension, which reduces the frequency of traction settings by the staff and improves the efficiency of roll changing.
Smart Images
Figure CN224477689U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of die-cutting technology, and in particular to a die-cutting device. Background Technology
[0002] In the current die-cutting, packaging, and coating industries, which are all applications of roll materials, more and more servo motors are being added to die-cutting equipment to stabilize the traction force of the feed for multi-layer composite products. However, the frequent changes of roll materials require operators to frequently adjust the traction force, resulting in a large amount of additional workload for the operators. Utility Model Content
[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a die-cutting device that improves the efficiency of roll changing for workers.
[0004] A die-cutting device according to an embodiment of the present invention includes a mounting frame, a conveyor roller assembly, a tension roller, a first sensor, a second sensor, and a driver. The conveyor roller assembly includes multiple rotatable conveyor rollers mounted on the mounting frame. The tension roller and the multiple conveyor rollers together constitute a conveyor line for conveying the material belt. The tension roller is slidably mounted on the mounting frame in the vertical direction and can tension the material belt downward under its own weight. The first sensor is mounted on the mounting frame and is used to detect whether the tension roller is located in a first position. The second sensor is mounted on the mounting frame and is used to detect whether the tension roller is located in a second position, which is located below the first position. The driver is drivenly connected to at least one conveyor roller and electrically connected to the first sensor and the second sensor respectively. The driver can adjust the rotational speed of the conveyor roller when the first sensor detects that the tension roller is located in the first position or when the second sensor detects that the tension roller is located in the second position, so that the tension roller is located between the first position and the second position.
[0005] A die-cutting device according to an embodiment of the present utility model has at least the following technical effects:
[0006] In the die-cutting equipment of this application, the material strip is wound around each conveyor roller of the conveyor roller group and passes through the tension roller. The tension roller tensions the material strip under its own gravity. When the first sensor detects that the tension roller is in the first position, the first sensor sends a signal to the driver. The driver adjusts the rotation speed of the conveyor roller connected to it so that the tension roller is between the first position and the second position. When the second sensor detects that the tension roller is in the second position, the second sensor sends a signal to the driver. The driver adjusts the rotation speed of the conveyor roller connected to it so that the tension roller is between the first position and the second position. This ensures that the tension roller is always able to slide both upwards and downwards, thereby reducing the probability that the upward or downward sliding stroke of the tension roller reaches its limit. After the tension roller is adjusted to a position between the first and second positions by the driver, the tension roller can tension the material strip under its own gravity. At this time, the tension of the material strip is balanced with the gravity of the tension roller. Therefore, the die-cutting equipment of this application can directly keep the material strip under constant tension after changing the roll, so that the operator does not need to frequently set the traction force, thereby improving the operator's roll changing efficiency.
[0007] According to some embodiments of the present invention, a die-cutting device further includes a third sensor, which is mounted on a mounting frame and is used to detect whether the tension roller is in a third position. The third position is located between the first position and the second position. The driver is electrically connected to the third sensor and is able to maintain a constant rotational speed of the conveyor roller when the third sensor detects that the tension roller is in the third position.
[0008] According to some embodiments of the present invention, a die-cutting device is provided on a mounting frame with a vertically extending slide rail, and a slide block is slidably provided on the slide rail, with a tension roller rotatably mounted on the slide block.
[0009] According to some embodiments of the present invention, a die-cutting device has a first sensor located above a second sensor, and a sensing block is mounted on a slide. The first sensing area of the first sensor and the second sensing area of the second sensor are both located on the moving path of the sensing block. The first sensor can detect that the tension roller is in a first position when the sensing block enters the first sensing area, and the second sensor can detect that the tension roller is in a second position when the sensing block enters the second sensing area.
[0010] According to some embodiments of the present invention, a die-cutting device is provided with a first sensor whose position is adjustable along the vertical direction on a mounting frame, and / or a second sensor whose position is adjustable along the vertical direction on a mounting frame.
[0011] According to some embodiments of the present invention, a die-cutting device includes a conveyor roller group comprising a first conveyor roller. Along the conveying direction of the conveyor line, the first conveyor roller is disposed in front of the tension roller. A driver is connected to the first conveyor roller in a driving connection. The driver can increase the rotational speed of the first conveyor roller when the first sensor detects that the tension roller is in a first position, and can decrease the rotational speed of the conveyor roller when the second sensor detects that the tension roller is in a second position.
[0012] According to some embodiments of the present invention, a die-cutting device further includes a pressing roller, which is rotatably mounted on a mounting frame and is capable of pressing the material strip to adhere to the roller surface of the first conveying roller.
[0013] According to some embodiments of the present invention, in a die-cutting device, along the conveying direction of the conveying line, the conveying roller group further includes a second conveying roller and a third conveying roller respectively arranged adjacent to the tensioning roller, and in the horizontal direction, the third conveying roller is located between the second conveying roller and the tensioning roller.
[0014] According to some embodiments of the present invention, a die-cutting device is provided on a second conveying roller, wherein a first limiting member and a second limiting member are provided, the first limiting member and the second limiting member are distributed at intervals along the axial direction of the second conveying roller, and can cooperate to limit the material strip in the axial direction of the second conveying roller.
[0015] According to some embodiments of the present invention, in a die-cutting device, the first limiting member is adjustable in position along the axial direction of the second conveying roller, and / or the second limiting member is adjustable in position along the axial direction of the second conveying roller.
[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0018] Figure 1 This is a schematic diagram of the structure of a die-cutting device according to one embodiment of the present invention;
[0019] Figure 2 for Figure 1 A schematic diagram of the die-cutting equipment from another perspective.
[0020] Figure label:
[0021] Mounting bracket 100, slide rail 110, slide base 120, sensor block 121;
[0022] Conveyor roller assembly 200, first conveyor roller 210, second conveyor roller 220, first limiting member 221, second limiting member 222, third conveyor roller 230;
[0023] 300 tension roller;
[0024] First sensor 400;
[0025] Second sensor 500;
[0026] Drive 600;
[0027] Third sensor 700;
[0028] 800 pressing rollers. Detailed Implementation
[0029] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0030] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, left, right, front, and back, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, 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. Therefore, they should not be construed as limitations on this utility model.
[0031] In the description of this utility model, the use of "first" and "second" is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features or the order of the technical features.
[0032] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0033] The following is for reference. Figure 1 and Figure 2 A die-cutting device according to an embodiment of the present invention will be described in detail.
[0034] refer to Figure 1 and Figure 2A die-cutting device according to an embodiment of the present invention includes a mounting frame 100, a conveyor roller assembly 200, a tension roller 300, a first sensor 400, a second sensor 500, and a driver 600. The conveyor roller assembly 200 includes multiple rotatable conveyor rollers mounted on the mounting frame 100. The tension roller 300 and the multiple conveyor rollers together constitute a conveyor line for moving the material belt. The tension roller 300 is slidably mounted on the mounting frame 100 in the vertical direction and can tension the material belt downwards under its own weight. The first sensor 400 is mounted on the mounting frame 100 and is used to detect whether the tension roller 300 is in operation. Whether it is in the first position; the second sensor 500 is mounted on the mounting bracket 100 and is used to detect whether the tension roller 300 is in the second position, which is below the first position; the driver 600 is drivenly connected to at least one conveyor roller, and the driver 600 is electrically connected to the first sensor 400 and the second sensor 500 respectively. The driver 600 can adjust the rotation speed of the conveyor roller when the first sensor 400 detects that the tension roller 300 is in the first position, or when the second sensor 500 detects that the tension roller 300 is in the second position, so that the tension roller 300 is between the first position and the second position.
[0035] It should be noted that since the weight of the tension roller 300 is constant, the tension applied to the feed belt by the tension roller 300 remains constant. If the conveying speed of the feed belt remains constant, the tension roller 300 can remain relatively stationary in the vertical direction. However, in reality, due to errors, the conveying speed of the feed belt will fluctuate within a certain range, causing the supporting force applied to the tension roller 300 to fluctuate within a certain range as well. When the tension of the feed belt decreases, and the supporting force applied to the tension roller 300 is less than the weight of the tension roller 300, the tension roller 300 will move downwards to tension the feed belt, thereby increasing the feed belt tension. When the tension of the feed belt increases, and the supporting force applied to the tension roller 300 is greater than the weight of the tension roller 300, the tension roller 300 will move upwards. The tension roller 300 moves up and down relative to the mounting frame 100 during the operation of the die-cutting equipment of this application, thereby reducing the tension of the material strip. However, the stroke of the tension roller 300 relative to the mounting frame 100 is limited. When the upward or downward sliding stroke of the tension roller 300 reaches its limit, it is difficult for the tension roller 300 to adjust the tension of the material strip. For example, if the tension of the material strip is too high when the upward sliding stroke of the tension roller 300 reaches its limit, the tension roller 300 cannot continue to move upward to reduce the tension of the material strip. Similarly, if the tension of the material strip is too low when the downward sliding stroke of the tension roller 300 reaches its limit, the tension roller 300 cannot continue to move downward to increase the tension of the material strip.
[0036] Understandably, in the die-cutting equipment of this application, the material strip is wound around each of the conveyor rollers of the conveyor roller group 200 and passes through the tension roller 300. The tension roller 300 tensions the material strip under its own gravity. When the first sensor 400 detects that the tension roller 300 is in the first position, the first sensor 400 sends a signal to the driver 600. The driver 600 adjusts the rotation speed of the conveyor roller connected to it so that the tension roller 300 is between the first position and the second position. When the second sensor 500 detects that the tension roller 300 is in the second position, the second sensor 500 sends a signal to the driver 600. The driver 600 adjusts the rotation speed of the conveyor roller connected to it so that the tension roller 300 is between the first position and the second position. This ensures that the tension roller 300 can always slide upwards and downwards, thereby reducing the probability that the upward or downward sliding stroke of the tension roller 300 reaches its limit.
[0037] It is understood that after the tension roller 300 is adjusted to the position between the first and second positions by the driver 600, the tension roller 300 can tension the material strip under its own gravity. At this time, the tension of the material strip is balanced with the gravity of the tension roller 300. Therefore, the die-cutting equipment of this application can directly keep the material strip under constant tension after changing the roll, so that the operator does not need to frequently set the traction force, thereby improving the operator's roll changing efficiency.
[0038] refer to Figure 1 and Figure 2In some embodiments of this utility model, the die-cutting equipment further includes a third sensor 700, which is mounted on the mounting bracket 100 and is used to detect whether the tension roller 300 is in a third position. The third position is located between the first position and the second position. The driver 600 is electrically connected to the third sensor 700 and is able to maintain a constant rotational speed of the conveying roller when the third sensor 700 detects that the tension roller 300 is in the third position. Understandably, when the first sensor 400 detects that the tension roller 300 is in the first position, the first sensor 400 sends a signal to the driver 600. The driver 600 adjusts the rotation speed of the connected conveyor roller so that the material belt drives the tension roller 300 to move vertically downwards until the third sensor 700 detects that the tension roller 300 is in the third position. The driver 600 then maintains a constant rotation speed of the conveyor roller so that the tension roller 300 can be stably maintained in the third position. When the second sensor 500 detects that the tension roller 300 is in the second position, the second sensor 500 sends a signal to the driver 600. The driver 600 adjusts the rotation speed of the connected conveyor roller so that the material belt drives the tension roller 300 to move vertically upwards until the third sensor 700 detects that the tension roller 300 is in the third position. The driver 600 then maintains a constant rotation speed of the conveyor roller so that the tension roller 300 can be stably maintained in the third position.
[0039] refer to Figure 1 and Figure 2 In some embodiments of this utility model, a vertically extending slide rail 110 is provided on the mounting frame 100, and a slide block 120 is slidably provided on the slide rail 110. The tension roller 300 is rotatably mounted on the slide block 120. It can be understood that when the driver 600 adjusts the speed of the conveyor roller, the tension roller 300 moves up or down under the drive of the material belt. By mounting the tension roller 300 on the slide block 120, the tension roller 300 can move vertically on the slide rail 110 via the slide block 120.
[0040] like Figure 1 and Figure 2As shown, in some embodiments, a first sensor 400 is disposed above a second sensor 500, and a sensing block 121 is mounted on a slide block 120. The first sensing area of the first sensor 400 and the second sensing area of the second sensor 500 are both located on the moving path of the sensing block 121. The first sensor 400 can detect that the tension roller 300 is in a first position when the sensing block 121 enters the first sensing area, and the second sensor 500 can detect that the tension roller 300 is in a second position when the sensing block 121 enters the second sensing area. It can be understood that when the sensing block 121 on the slide block moves to the first sensing area of the first sensor 400, and the first sensor 400 detects that the sensing block 121 has entered the first sensing area, the tension roller 300 on the slide block is in the first position; when the sensing block 121 on the slide block moves to the second sensing area of the second sensor 500, and the second sensor 500 detects that the sensing block 121 has entered the second sensing area, the tension roller 300 on the slide block is in the second position.
[0041] like Figure 1 and Figure 2 As shown, in one embodiment, the first sensor 400 is vertically adjustable and mounted on the mounting bracket 100, and / or the second sensor 500 is vertically adjustable and mounted on the mounting bracket 100. It is understood that the first position is adjusted by adjusting the position of the first sensor 400 in the vertical direction of the mounting bracket 100; and the second position is adjusted by adjusting the position of the second sensor 500 in the vertical direction of the mounting bracket 100.
[0042] refer to Figure 1 and Figure 2 In some embodiments of this utility model, the conveying roller group 200 includes a first conveying roller 210. Along the conveying direction of the conveying line, the first conveying roller 210 is disposed in front of the tensioning roller 300. The driver 600 is connected to the first conveying roller 210 in a driving connection. The driver 600 can increase the rotational speed of the first conveying roller 210 when the first sensor 400 detects that the tensioning roller 300 is in a first position, and can decrease the rotational speed of the conveying roller when the second sensor 500 detects that the tensioning roller 300 is in a second position. Understandably, when the first sensor 400 detects that the tension roller 300 is in the first position, the first sensor 400 transmits a signal to the driver 600, which increases the rotational speed of the first conveyor roller 210, causing the tension roller 300 to move downwards in the vertical direction and to move the tension roller 300 between the first and second positions; when the second sensor 500 detects that the tension roller 300 is in the second position, the second sensor 500 transmits a signal to the driver 600, which decreases the rotational speed of the first conveyor roller 210, causing the tension roller 300 to move upwards in the vertical direction and to move the tension roller 300 between the first and second positions.
[0043] like Figure 1 and Figure 2 As shown, in some embodiments, the die-cutting equipment further includes a pressing roller 800, which is rotatably mounted on the mounting frame 100 and capable of pressing the material strip against the roller surface of the first conveyor roller 210. It is understood that by providing the pressing roller 800 and having the material strip pass between the pressing roller 800 and the conveyor roller, slippage between the conveyor roller and the material strip can be prevented.
[0044] like Figure 1 and Figure 2 As shown, in some embodiments, along the conveying direction of the conveyor line, the conveyor roller group 200 further includes a second conveyor roller 220 and a third conveyor roller 230 respectively disposed adjacent to the tension roller 300. In the horizontal direction, the third conveyor roller 230 is located between the second conveyor roller 220 and the tension roller 300. It is understood that by distributing the third conveyor roller 230 horizontally between the second conveyor roller 220 and the tension roller 300, the force required for the tension roller 300 to move upward can be increased.
[0045] like Figure 1 and Figure 2 As shown, in some embodiments, the second conveying roller 220 is provided with a first limiting member 221 and a second limiting member 222. The first limiting member 221 and the second limiting member 222 are distributed at intervals along the axial direction of the second conveying roller 220 and can cooperate to limit the material belt in the axial direction of the second conveying roller 220. It can be understood that by providing the first limiting member 221 and the second limiting member 222 on the second conveying roller 220, the conveying position of the material belt can be restricted to reduce the possibility of material belt deviation, thereby ensuring the stability of the material belt tension.
[0046] like Figure 1 and Figure 2 As shown, in some embodiments, the first limiting member 221 is adjustable in position along the axial direction of the second conveying roller 220, and / or the second limiting member 222 is adjustable in position along the axial direction of the second conveying roller 220. It is understood that by adjusting the position of the first limiting member 221 and / or the second limiting member 222 along the axial direction of the second conveying roller 220, different specifications of material belts can be accommodated, or the conveying position of the material belt can be adjusted.
[0047] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.
Claims
1. A die-cutting device, characterized in that, include: Mounting rack; The conveyor roller assembly includes multiple rotatable conveyor rollers mounted on the mounting frame; The tension roller and the multiple conveying rollers together constitute a conveyor line for conveying the material belt. The tension roller is slidably mounted on the mounting frame in the vertical direction and can tension the material belt downward under its own weight. A first sensor is mounted on the mounting bracket and is used to detect whether the tension roller is in a first position; A second sensor is mounted on the mounting bracket and is used to detect whether the tension roller is in a second position, which is located below the first position. A driver is drivenly connected to at least one of the conveying rollers, and the driver is electrically connected to the first sensor and the second sensor respectively. The driver is capable of adjusting the rotational speed of the conveying roller when the first sensor detects that the tensioning roller is in the first position, or when the second sensor detects that the tensioning roller is in the second position, so that the tensioning roller is between the first position and the second position.
2. The die-cutting equipment according to claim 1, characterized in that, It also includes a third sensor, which is mounted on the mounting bracket and is used to detect whether the tension roller is in a third position, which is located between the first position and the second position. The driver is electrically connected to the third sensor and is able to maintain a constant rotational speed of the conveyor roller when the third sensor detects that the tension roller is in the third position.
3. The die-cutting equipment according to claim 1, characterized in that, The mounting frame is provided with a vertically extending slide rail, and a slide block is slidably provided on the slide rail. The tensioning roller is rotatably mounted on the slide block.
4. A die-cutting device according to claim 3, characterized in that, The first sensor is located above the second sensor. A sensing block is mounted on the slide. The first sensing area of the first sensor and the second sensing area of the second sensor are both located on the moving path of the sensing block. The first sensor can detect that the tension roller is in the first position when the sensing block enters the first sensing area. The second sensor can detect that the tension roller is in the second position when the sensing block enters the second sensing area.
5. A die-cutting device according to claim 4, characterized in that, The first sensor is vertically adjustable and mounted on the mounting bracket. And / or, The second sensor is mounted on the mounting bracket with adjustable position along the vertical direction.
6. A die-cutting device according to claim 1, characterized in that, The conveying roller assembly includes a first conveying roller along the conveying direction of the conveying line. The first conveying roller is located in front of the tensioning roller. The driver is connected to the first conveying roller in a driving connection. The driver can increase the rotational speed of the first conveying roller when the first sensor detects that the tensioning roller is in the first position, and can decrease the rotational speed of the conveying roller when the second sensor detects that the tensioning roller is in the second position.
7. A die-cutting device according to claim 6, characterized in that, It also includes a pressing roller, which is rotatably mounted on the mounting frame and is capable of pressing the material strip against the roller surface of the first conveying roller.
8. A die-cutting device according to claim 6, characterized in that, Along the conveying direction of the conveying line, the conveying roller group also includes a second conveying roller and a third conveying roller respectively arranged adjacent to the tensioning roller. In the horizontal direction, the third conveying roller is located between the second conveying roller and the tensioning roller.
9. A die-cutting device according to claim 8, characterized in that, The second conveying roller is provided with a first limiting member and a second limiting member. The first limiting member and the second limiting member are distributed at intervals along the axial direction of the second conveying roller and can cooperate to limit the material strip in the axial direction of the second conveying roller.
10. A die-cutting device according to claim 9, characterized in that, The first limiting member is adjustable in position along the axial direction of the second conveying roller. And / or, The second limiting member is adjustable in position along the axial direction of the second conveying roller.