A label cutting mechanism

Abstract

The application relates to a label cutting mechanism and relates to the technical field of label cutting, which comprises a workbench, a displacement sensor, a start-stop roller and a cutter are sequentially arranged on the workbench along the moving direction of a profile strip, the displacement sensor is used for detecting the displacement distance of the profile strip, two start-stop rollers are rotationally arranged on the workbench and jointly clamp the profile strip, a driving assembly for driving the start-stop roller to rotate is arranged on the workbench, the displacement sensor is electrically connected with the driving assembly, and the cutter is used for cutting the profile strip. The application has the effects of avoiding cutting deviation caused by continuous movement of the profile strip as much as possible and improving cutting precision.

Description

Technical Field

[0001] This application relates to the field of label cutting technology, and in particular to a label cutting mechanism. Background Technology

[0002] In the existing label production process (especially for materials such as PET and PVC), labels are typically made from various film profiles through processes such as lamination, die-cutting, and cutting. In the cutting stage, a continuous profile strip is output from the preceding label processing device. After the strip has traveled a certain length, a cutting tool cuts it into small label segments, which are then collected by workers. However, because the profile strip is in continuous motion, the cutting accuracy is prone to deviation. Utility Model Content

[0003] In order to minimize cutting deviations caused by continuous movement of the profile belt and improve cutting accuracy, this application provides a label cutting mechanism.

[0004] The label cutting mechanism provided in this application adopts the following technical solution: A label cutting mechanism includes a worktable. A displacement sensor, a start / stop roller, and a cutter are sequentially arranged on the worktable along the movement direction of a profile strip. The displacement sensor is used to detect the displacement distance of the profile strip. Two start / stop rollers are rotatably arranged on the worktable, and the two start / stop rollers together clamp the profile strip. A drive assembly for driving the start / stop rollers to rotate is provided on the worktable. The displacement sensor is electrically connected to the drive assembly. The cutter is used to cut the profile strip.

[0005] By adopting the above technical solution, the drive component drives the start-stop roller to rotate, which in turn moves the profile strip. The displacement sensor detects the displacement distance of the profile strip in real time. When the displacement distance of the profile strip reaches the preset cutting length, the drive component stops the start-stop roller from rotating, and the profile strip is in a stationary state. At this time, the cutter performs cutting, which avoids cutting deviation caused by continuous movement of the profile strip as much as possible and improves cutting accuracy.

[0006] Preferably, two stabilizing rollers are rotatably mounted on the worktable. The stabilizing rollers are located on the side of the displacement sensor away from the start-stop roller. The two stabilizing rollers together clamp the profile strip, and the stabilizing rollers rotate and stop synchronously with the start-stop roller.

[0007] By adopting the above technical solution, the stabilizing roller and the start-stop roller work together on the profile belt to guide and constrain the movement of the profile, ensuring the stability of the profile belt conveying and stopping process within the detection range of the displacement sensor, and avoiding the impact of material vibration or loosening on the detection accuracy of the displacement sensor.

[0008] Preferably, the drive assembly includes a first motor, a drive pulley, a driven pulley, a synchronous belt, and a first gear. The drive pulley is rotatably connected to the worktable, the first motor is fixedly connected to the worktable, the drive shaft of the first motor is coaxially fixed to the drive pulley, the displacement sensor is electrically connected to the first motor, the driven pulley is coaxially fixed to any of the start / stop rollers, the drive pulley and the driven pulley are connected by the synchronous belt, and the first gear is coaxially fixed to the start / stop rollers, with the two first gears meshing with each other.

[0009] By adopting the above technical solution, the first motor drives the active pulley to rotate, and the active pulley drives the driven pulley to rotate through the synchronous belt, thereby driving one of the start-stop rollers to rotate. Then, through the meshing first gear, the other start-stop roller is driven to rotate synchronously in the opposite direction, so as to realize the clamping and synchronous conveying of the profile strip and ensure that the two start-stop rollers rotate at the same speed.

[0010] Preferably, the stabilizing roller is coaxially fixed with a second gear, the two second gears mesh with each other, and any one of the second gears is coaxially fixed with the drive shaft of the first motor.

[0011] By adopting the above technical solution, the stabilizing roller and the start-stop roller share the same drive source (i.e., the first motor), ensuring that the rotation and stopping of the stabilizing roller and the start-stop roller are synchronized, avoiding the stretching or loosening of the profile belt caused by asynchronous driving, ensuring the consistency of the detection of the displacement sensor and the conveying length, and improving the stability of the mechanism operation.

[0012] Preferably, the workbench is provided with a support, and a mounting bracket is slidably mounted on the support. The sliding direction of the mounting bracket is parallel to the conveying direction of the profile strip. The support is also provided with an adjustment component for driving the mounting bracket to slide. The displacement sensor is fixedly mounted on the mounting bracket, and the mounting bracket is also fixedly mounted with a distance sensor. The distance sensor is electrically connected to the displacement sensor and is used to detect the distance from the displacement sensor to the cutter.

[0013] By adopting the above technical solution, the positioning component can adjust the position of the displacement sensor, and in conjunction with the distance sensor, calibrate the distance between the displacement sensor and the cutter in real time, so that the cutting mechanism can adapt to the cutting needs of labels of different lengths and improve the versatility of the cutting mechanism.

[0014] Preferably, the adjustment assembly includes a lead screw and a knob. The lead screw is rotatably connected to the bracket and threadedly connected to the mounting bracket. The knob is coaxially fixed to the end of the lead screw.

[0015] By adopting the above technical solution, rotating the knob drives the lead screw to rotate, and the mounting bracket slides through the threaded transmission, thereby realizing the adjustment of the position of the displacement sensor. The operation is simple and the adjustment accuracy is high.

[0016] Preferably, a receiving base is fixedly installed on the workbench. The receiving base is located on the side of the cutter away from the displacement sensor. The receiving base is used to receive the labels cut off from the profile strip by the cutter. The receiving base is provided with aligners on both sides to prevent the labels from falling off the receiving base.

[0017] By adopting the above technical solution, the receiving base centrally receives the cut labels, and the aligning component can limit the movement range of the labels, avoid the labels being stacked messily, facilitate subsequent unified collection and sorting, and improve the receiving efficiency.

[0018] Preferably, two support rollers are rotatably mounted on the receiving base, and a conveyor belt is provided between the two support rollers. The two support rollers are connected by the conveyor belt. The label is located on the conveyor belt. A second motor is fixedly mounted on the receiving base, and the output end of the second motor is coaxially fixed with either of the support rollers.

[0019] By adopting the above technical solution, when the conveyor belt carries labels of a certain height, the second motor drives the support roller to rotate, which in turn drives the conveyor belt to transport the cut labels out, making it easier to collect the materials.

[0020] In summary, this application includes at least one of the following beneficial technical effects: 1. By setting up a worktable, displacement sensor, start-stop roller, cutter, drive assembly, and stabilizing roller, the start-stop roller stops rotating when the profile strip displacement reaches a preset length, realizing cutting of the profile strip in a static state, reducing cutting deviation caused by continuous movement. At the same time, the stabilizing roller and the start-stop roller move together to ensure the stability of the profile strip conveying and stopping process, ensure the detection accuracy of the displacement sensor, and thus improve the overall cutting accuracy. 2. By setting up a first motor, a driving pulley, a driven pulley, a synchronous belt, a first gear, and a second gear, the synchronous reverse rotation of the two start-stop rollers is achieved, as well as the shared drive of the stabilizing roller and the start-stop roller, ensuring the synchronization of the rotation and stopping of all stabilizing rollers and start-stop rollers; 3. By setting up a distance sensor, lead screw, knob, and mounting bracket, the position of the displacement sensor is adjusted by the lead screw, and the distance sensor is used to determine the distance between the displacement sensor and the cutter in real time. This allows the cutting mechanism to adapt to the cutting needs of labels of different lengths, improving the versatility of the cutting mechanism. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a label cutting mechanism provided in the embodiments of this application.

[0022] Figure 2 yes Figure 1 Enlarged view of part A in the middle.

[0023] Figure 3 yes Figure 1 Enlarged view of section B.

[0024] Explanation of reference numerals in the attached drawings: 1. Workbench; 11. Start / Stop roller; 12. Gantry; 121. Cylinder; 122. Cutter; 13. Stabilizing roller; 131. Second gear; 2. Bracket; 21. Slide rod; 22. Mounting bracket; 221. Displacement sensor; 222. Distance sensor; 3. Drive assembly; 31. First motor; 32. Drive pulley; 33. Driven pulley; 34. Synchronous belt; 35. First gear; 4. Adjustment assembly; 41. Lead screw; 42. Knob; 5. Receiving base; 51. Leveling component; 52. Support roller; 53. Conveyor belt; 54. Second motor; 6. Profile belt; 61. Label. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0026] This application discloses a label 61 cutting mechanism. (Refer to...) Figure 1 and Figure 2 It includes a worktable 1 and a processor. A stabilizing roller 13, a displacement sensor 221, a start / stop roller 11, and a cutter 122 are sequentially arranged on the worktable 1 along the direction of movement of the profile strip 6. In this embodiment, the direction of movement of the profile strip 6 is parallel to the length direction of the label 61 cutting mechanism.

[0027] Reference Figure 1 Two stabilizing rollers 13 and two start-stop rollers 11 are rotatably mounted on the worktable 1. The axes of the stabilizing rollers 13 and the start-stop rollers 11 are parallel to the width direction of the label 61 cutting mechanism. The two stabilizing rollers 13 are symmetrically distributed along the height direction of the label 61 cutting mechanism and together clamp the profile strip 6. The two start-stop rollers 11 are symmetrically distributed along the height direction of the label 61 cutting mechanism and together clamp the profile strip 6. The diameters of the stabilizing rollers 13 and the start-stop rollers 11 are equal, and the stabilizing rollers 13 and the start-stop rollers 11 rotate and stop synchronously to ensure the stability of the profile strip 6 when passing the displacement sensor 221.

[0028] Reference Figure 1 A drive assembly 3 for driving the start / stop roller 11 to rotate is provided on the worktable 1. Specifically, the drive assembly 3 includes a first motor 31, a drive pulley 32, a driven pulley 33, a synchronous belt 34, and a first gear 35. The drive pulley 32 is rotatably connected to the worktable 1 and coaxially fixed to a stabilizing roller 13 located below it. The first motor 31 is fixedly connected to the worktable 1, and the drive shaft of the first motor 31 is coaxially fixed to the drive pulley 32. A second gear 131 is coaxially fixed to the stabilizing roller 13, and the two second gears 131 have the same number of teeth and mesh with each other.

[0029] Reference Figure 1The driven pulley 33 is coaxially fixed to a start / stop roller 11 located below it. The driving pulley 32 and the driven pulley 33 are connected by a synchronous belt 34. One end of the synchronous belt 34 is fitted onto the driving pulley 32 and meshes with it, while the other end is fitted onto the driven pulley 33 and meshes with it. The driving pulley 32 and the driven pulley 33 have the same number of teeth. The first gear 35 is coaxially fixed to the start / stop roller 11, and the two first gears 35 have the same number of teeth and mesh with each other.

[0030] Reference Figure 1 The displacement sensor 221 is electrically connected to the first motor 31 in the drive assembly 3 via a processor, which in this embodiment is a PLC controller. The displacement sensor 221 is used to detect the displacement distance of the profile strip 6 and send the displacement data to the processor. The processor has pre-stored the length parameter of the profile strip 6 to be cut, i.e., the length of the cut label 61. The processor is used to receive the displacement data sent by the displacement sensor 221 and compare the actual displacement distance of the profile strip 6 with the pre-stored length parameter. If they are equal, a stop signal is sent to the first motor 31, and the first motor 31 stops running after receiving the stop signal. The cutter 122 is used to cut the profile strip 6. A gantry 12 is fixedly installed on the worktable 1, and a cylinder 121 is fixedly installed on the gantry 12. The output end of the cylinder 121 faces downward and is fixedly connected to the cutter 122. Cylinder 121 is electrically connected to the processor. After sending a stop signal to the first motor 31, the processor sends a cutting signal to cylinder 121. Upon receiving the cutting signal, cylinder 121 reciprocates once at its output end, driving the cutter 122 to move and cut the profile strip 6. Afterward, the processor sends a start signal to the first motor 31, which continues to run upon receiving the start signal. During the period when the first motor 31 stops running, the processor resets the displacement distance of the profile strip 6 detected by the displacement sensor 221 to zero, allowing the displacement sensor 221 to re-detect the subsequent displacement distance of the profile strip 6.

[0031] Reference Figure 1After the first motor 31 starts, it drives the driven pulley 33 to rotate via the driving pulley 32 and the synchronous belt 34, which in turn drives the lower start-stop roller 11 to rotate. Simultaneously, the meshing first gear 35 drives the upper start-stop roller 11 to rotate synchronously in the opposite direction, thus clamping and conveying the profile strip 6. Simultaneously, the first motor 31 drives the lower stabilizing roller 13 to rotate, and the meshing second gear 131 drives the upper stabilizing roller 13 to rotate synchronously in the opposite direction, together with the start-stop roller 11, constraining the linear movement of the profile strip 6. The displacement sensor 221 detects the displacement of the profile strip 6 in real time and feeds it back to the processor. When the displacement reaches the preset cutting length, the processor controls the first motor 31 to stop, and the profile strip 6 comes to a standstill. Then, the control cylinder 121 drives the cutter 122 to complete the cutting. After cutting, the processor controls the first motor 31 to continue running, realizing the alternating action of intermittently conveying the profile strip 6 and stationary cutting of the profile strip 6, reducing cutting deviation caused by continuous movement.

[0032] To facilitate the cutting of labels 61 to different lengths, refer to... Figure 1 and 2 A support 2 is fixedly mounted on the workbench 1, and a mounting bracket 22 is slidably mounted on the support 2. In this embodiment, a slide rod 21 is fixedly mounted on the support 2, and the mounting bracket 22 is slidably connected to the slide rod 21 along the length direction of the label 61 cutting mechanism. Therefore, the sliding direction of the mounting bracket 22 is parallel to the conveying direction of the profile strip 6. A scale line is provided on the slide rod 21 along the length direction of the label 61 cutting mechanism, and the value of the mounting bracket 22 pointing to the scale line is the distance from the displacement sensor 221 to the cutter 122.

[0033] Reference Figure 1 and 2 The displacement sensor 221 is fixedly mounted on the mounting bracket 22, which also has a distance sensor 222 fixedly mounted on it. The distance sensor 222 and the displacement sensor 221 are electrically connected via a processor. The distance sensor 222 is used to detect the distance from the displacement sensor 221 to the cutter 122 and sends the distance data to the processor. The processor receives the distance data and modifies the pre-stored length parameter according to the distance data, so that the length represented by the pre-stored length parameter is equal to the distance from the displacement sensor 221 to the cutter 122.

[0034] Reference Figure 1 and 2 The bracket 2 is also equipped with an adjustment component 4 for driving the mounting bracket 22 to slide. Specifically, the adjustment component 4 includes a lead screw 41 and a knob 42. The lead screw 41 is rotatably connected to the bracket 2. The axis of the lead screw 41 is parallel to the length direction of the label 61 cutting mechanism. The lead screw 41 is threadedly connected to the mounting bracket 22. The knob 42 is coaxially fixed to the end of the lead screw 41.

[0035] Reference Figure 1 and2 Rotating knob 42 drives lead screw 41 to rotate, which in turn drives mounting bracket 22 to slide along slide rod 21 via threaded transmission, thereby adjusting the position of displacement sensor 221. Distance sensor 222 detects the distance between displacement sensor 221 and cutter 122 and feeds it back to processor. Based on this distance, processor modifies the preset cutting length parameter to make the preset length consistent with the actual cutting length, thus adapting to the cutting requirements of labels 61 of different specifications.

[0036] To facilitate the collection of labels 61 cut from the profile strip 6, refer to Figure 1 and Figure 3 A receiving base 5 is fixedly installed on the workbench 1. The receiving base 5 is located on the side of the cutter 122 away from the displacement sensor 221. The receiving base 5 is used to receive the labels 61 cut by the cutter 122 from the profile strip 6. Guiding members 51 are provided on both sides of the receiving base 5 to prevent the labels 61 from detaching from the receiving base 5. Specifically, a lower part is provided on the side of the workbench 1 away from the displacement sensor 221, and the receiving base 5 is fixed to the upper surface of the lower part. The guiding member 51 is a cylindrical weight with a vertical axis, and the guiding member 51 is placed on the upper surface of the lower part.

[0037] Reference Figure 1 and Figure 3 Two support rollers 52 are rotatably mounted on the receiving base 5. The axes of the support rollers 52 are parallel to the width direction of the label 61 cutting mechanism. A conveyor belt 53 is provided between the two support rollers 52, and the two support rollers 52 are connected by the conveyor belt 53. The label 61 is located on the conveyor belt 53. A second motor 54 is fixedly mounted on the receiving base 5, and the output end of the second motor 54 is coaxially fixed with either support roller 52. The horizontal height of the top of the conveyor belt 53 is lower than the horizontal height of the movable plane of the first profile belt 6.

[0038] Reference Figure 1 and Figure 3 After being cut, the labels 61 fall onto the conveyor belt 53 of the receiving base 5. The straightener 51 restricts the offset of the labels 61. When the labels 61 are stacked to a certain height, the second motor 54 drives the conveyor belt 53 to output the labels 61 for easy collection.

[0039] The implementation principle of the label 61 cutting mechanism in this embodiment is as follows: the profile strip 6 passes sequentially through the stabilizing roller 13, the displacement sensor 221, and the start / stop roller 11. Driven by the first motor 31, the stabilizing roller 13 and the start / stop roller 11 rotate synchronously to convey the profile strip 6. The displacement sensor 221 detects the displacement of the profile strip 6 and feeds it back to the processor. When the displacement reaches the preset cutting length, the processor controls the first motor 31 to stop, the profile strip 6 comes to a standstill, the cylinder 121 drives the cutter 122 to complete the cutting, and then the first motor 31 restarts to continue conveying. This minimizes cutting deviations caused by the continuous movement of the profile strip 6 and improves cutting accuracy.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A label cutting mechanism, characterized in that: The system includes a worktable (1), on which a displacement sensor (221), a start-stop roller (11), and a cutter (122) are sequentially arranged along the movement direction of the profile strip (6). The displacement sensor (221) is used to detect the displacement distance of the profile strip (6). Two start-stop rollers (11) are rotatably arranged on the worktable (1), and the two start-stop rollers (11) together clamp the profile strip (6). A drive assembly (3) is provided on the worktable (1) to drive the start-stop rollers (11) to rotate. The displacement sensor (221) is electrically connected to the drive assembly (3). The cutter (122) is used to cut the profile strip (6).

2. The label cutting mechanism according to claim 1, characterized in that: Two stabilizing rollers (13) are rotatably mounted on the workbench (1). The stabilizing rollers (13) are located on the side of the displacement sensor (221) away from the start-stop roller (11). The two stabilizing rollers (13) together clamp the profile strip (6). The stabilizing rollers (13) and the start-stop roller (11) rotate and stop synchronously.

3. The label cutting mechanism according to claim 2, characterized in that: The drive assembly (3) includes a first motor (31), a drive pulley (32), a driven pulley (33), a synchronous belt (34), and a first gear (35). The drive pulley (32) is rotatably connected to the worktable (1), the first motor (31) is fixedly connected to the worktable (1), the drive shaft of the first motor (31) is coaxially fixed with the drive pulley (32), the displacement sensor (221) is electrically connected to the first motor (31), the driven pulley (33) is coaxially fixed with any of the start-stop rollers (11), the drive pulley (32) and the driven pulley (33) are connected by transmission through the synchronous belt (34), the first gear (35) is coaxially fixed with the start-stop rollers (11), and the two first gears (35) mesh with each other.

4. The label cutting mechanism according to claim 3, characterized in that: The stabilizing roller (13) is coaxially fixed with a second gear (131), the two second gears (131) mesh with each other, and any one of the second gears (131) is coaxially fixed with the drive shaft of the first motor (31).

5. A label cutting mechanism according to claim 1, characterized in that: A support (2) is provided on the workbench (1), and a mounting frame (22) is slidably provided on the support (2). The sliding direction of the mounting frame (22) is parallel to the conveying direction of the profile strip (6). An adjustment component (4) for driving the mounting frame (22) to slide is also provided on the support (2). The displacement sensor (221) is fixedly provided on the mounting frame (22). A distance sensor (222) is also fixedly provided on the mounting frame (22). The distance sensor (222) is electrically connected to the displacement sensor (221). The distance sensor (222) is used to detect the distance from the displacement sensor (221) to the cutter (122).

6. A label cutting mechanism according to claim 5, characterized in that: The adjustment assembly (4) includes a lead screw (41) and a knob (42). The lead screw (41) is rotatably connected to the bracket (2), and the lead screw (41) is threadedly connected to the mounting bracket (22). The knob (42) is coaxially fixed to the end of the lead screw (41).

7. The label cutting mechanism according to claim 1, characterized in that: A receiving base (5) is fixedly installed on the workbench (1). The receiving base (5) is located on the side of the cutter (122) away from the displacement sensor (221). The receiving base (5) is used to receive the label (61) cut off from the profile strip (6) by the cutter (122). The receiving base (5) is provided with a sizing element (51) on both sides to prevent the label (61) from falling off the receiving base (5).

8. A label cutting mechanism according to claim 7, characterized in that: Two support rollers (52) are rotatably mounted on the receiving base (5), and a conveyor belt (53) is provided between the two support rollers (52). The two support rollers (52) are connected by transmission through the conveyor belt (53). The label (61) is located on the conveyor belt (53). A second motor (54) is fixedly mounted on the receiving base (5), and the output end of the second motor (54) is coaxially fixed with any of the support rollers (52).

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