Automatic paper cutting machine

Abstract

The utility model relates to the technical field of paper cutting equipment, in particular to an automatic paper cutting machine which comprises a machine frame, an unwinding assembly, a cutter assembly, a feeding assembly, a color code sensor, a material receiving assembly and a controller used for controlling the cutter assembly, and the unwinding assembly, the cutter assembly, the feeding assembly, the color code sensor and the material receiving assembly are all arranged on the machine frame. The controller is arranged in the rack; the unwinding assembly unwinds and unwinds a coiled material to form packaging paper, the feeding assembly conveys the packaging paper to the cutter assembly to be cut, and the collecting assembly is arranged at the tail end of the cutter assembly and used for conveying the cut packaging paper to a discharging position; the color code sensor is arranged beside the feeding assembly, the detection station is aligned with the packaging paper, and the color code sensor and the cutter assembly are both in signal connection with the controller. The positioning precision in the paper coiled material cutting process is improved, the integrity of packaging paper patterns is guaranteed, and high-quality packaging paper cutting production is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of paper cutting equipment, and more specifically, to an automatic paper cutter. Background Art

[0002] During the production and distribution of foods like chewing gum and fruit-flavored jelly candies, small-sized wrapping paper is often used for subpackaging to prevent moisture, odor transfer, and other issues that can affect the taste of the food. Currently, to further improve processing efficiency and reduce labor costs, candy packaging companies are mostly using automated small-sized wrapping paper production lines. These production lines use automatic paper cutters to cut rolls of wrapping paper into small-sized wrapping paper suitable for candy packaging.

[0003] Prior art, such as Chinese patent CN208514576U discloses an automatic paper cutter, comprising: a frame, feed rollers, the feed rollers comprising a first raw material roller, a first guide roller, a first leveling roller, a second guide roller, a paper feed working roller, a third guide roller, a second leveling roller, a fourth guide roller, and a second raw material roller; the feed rollers are sequentially arranged on the left and right columns of the frame, and a cutter located between the second guide roller and the third guide roller and a gear driven by a transmission chain, and a transmission device powered by a motor, realizes automatic paper cutting, but its positioning accuracy during the paper cutting process is not high, which can easily damage the packaging paper pattern and affect the product production quality. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art that the positioning accuracy is low, the packaging paper pattern is easily damaged, and the production quality of the product is affected. An automatic paper cutter is provided to improve the positioning accuracy during the paper cutting process and protect the packaging paper pattern from being damaged.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] Provided is an automatic paper cutter, comprising a frame, an unwinding assembly, a cutter assembly, a feeding assembly, a color mark sensor, a receiving assembly, and a controller for controlling the cutter assembly, wherein the unwinding assembly, the cutter assembly, the feeding assembly, the color mark sensor, and the receiving assembly are all arranged on the frame, and the controller is arranged in the frame; the unwinding assembly unwinds a roll of material to form wrapping paper, the feeding assembly transports the wrapping paper to the cutter assembly for cutting, and the receiving assembly is arranged at the end of the cutter assembly for transporting the cut wrapping paper to a discharging position; the color mark sensor is arranged beside the feeding assembly, and a detection station is aligned with the wrapping paper, and the color mark sensor and the cutter assembly are both connected to the controller signal.

[0007] The automatic paper cutter of the present invention has a frame that fixes the positions of the unwinding assembly, the cutter assembly, the feeding assembly and the receiving assembly as a whole. The operator installs the paper roll on the unwinding assembly, unwinds the roll through the unwinding assembly, and unfolds it into packaging paper. The feeding assembly then transports the packaging paper to the cutter assembly. The cutter assembly cuts the long strips of packaging paper into small blocks of packaging paper. The receiving assembly receives the cut packaging paper and transports it to the discharging position for collection. During operation, the color mark sensor can detect the color of the pattern on the roll, and the detection station is aligned with the roll, and the relevant data is transmitted to the controller. The controller is connected to the cutter assembly signal, so as to quickly adjust the cutting speed of the cutter assembly, improve the positioning accuracy during the paper cutting process, and protect the packaging paper pattern from being damaged.

[0008] Furthermore, multiple sets of color mark sensors are provided, one on each side of the wrapping paper. These multiple sets of color mark sensors work together to perform color detection at multiple locations on both sides of the wrapping paper, further improving detection accuracy and avoiding misjudgments, thereby improving the cutting accuracy of the cutter assembly and reducing scrap rates.

[0009] Furthermore, the frame is provided with a guide rail, and the color mark sensor is provided with a slider that is slidably connected to the guide rail, allowing the color mark sensor detection station to be adjusted to different positions on the wrapping paper. The color mark sensor slides within the guide rail on the frame via the slider, and can be moved to different positions on the frame according to production needs to detect patterns on different locations of the wrapping paper, providing simple and convenient operation.

[0010] Furthermore, the color mark sensor includes a detection assembly and an adjuster for adjusting the angle between the detection assembly and the wrapping paper. The adjuster includes a first connecting rod rotatably connected to the frame and a second connecting rod rotatably connected to the first connecting rod. The detection assembly is connected to the second connecting rod. By rotating the first and second connecting rods on the adjuster, the detection station on the detection assembly can be kept perpendicular to the wrapping paper, thereby improving the accuracy of color detection.

[0011] The cutter assembly further includes a first conveyor belt, a blade assembly, and a motor for driving the blade assembly. The first conveyor belt is positioned at the end of the feed assembly and at a lower height than the feed assembly, and is used to transport the wrapping paper to the blade assembly. The blade assembly is positioned above the first conveyor belt, and the motor is electrically connected to the blade assembly. The first conveyor belt receives the wrapping paper from the feed assembly and stably transports it to the location of the blade assembly. The motor drives the blade assembly to cut the web, and adjusts the cutting speed of the blade assembly according to instructions from the controller.

[0012] Furthermore, the blade assembly includes a cutting roller and circular cutting blades. The cutting roller is rotatably connected to the frame, and the circular cutting blades are evenly distributed on the cutting roller. During operation, the cutting roller drives the circular cutting blades to rotate. The even distribution of the circular cutting blades ensures a stable cutting process for the paper roll and facilitates control of the processing speed, resulting in a high cutting speed.

[0013] Furthermore, the blade assembly includes a flush cutting blade capable of reciprocating in a direction perpendicular to the first conveyor belt, the flush cutting blade being movably connected to the frame. The flush cutting blade reciprocates in a direction perpendicular to the first conveyor belt to cut the coiled material, resulting in more accurate cutting positions and high processing precision.

[0014] Furthermore, the feeding assembly includes a traction member for clamping and conveying the packaging paper forward, and a first guide roller, a second guide roller, a third guide roller, a fourth guide roller, a fifth guide roller, a sixth guide roller, and a seventh guide roller which are arranged on the frame and whose heights decrease successively. The first guide roller, the second guide roller, the fourth guide roller, the sixth guide roller, and the seventh guide roller are located on the same side of the packaging paper, the third guide roller and the second guide roller are located on different sides of the packaging paper, the fifth guide roller and the third guide roller are located on the same side of the packaging paper, and the packaging paper enters the traction member after passing through the seventh guide roller. The first guide roller, the second guide roller, the fourth guide roller, the sixth guide roller, and the seventh guide roller change the movement direction of the coil. The traction machine clamps the packaging paper and simultaneously transports the packaging paper forward so that it can move from the unwinding assembly to the cutter assembly. The third guide roller and the fifth guide roller are arranged on the same side of the coil and on a different side of the coil as the second guide roller, so that the tension on the coil is stable during the movement of the feeding assembly and always remains in a tensioned state.

[0015] Furthermore, the feed assembly is equipped with a tension sensor, and both the tension sensor and the unwinding assembly are connected to the controller signal. The tension sensor on the feed assembly detects the tension of the coiled material and feeds the detection result back to the unwinding assembly, which adjusts the unwinding speed and torque to achieve automatic tension control and avoid excessive tension or instability.

[0016] Furthermore, the receiving assembly comprises a second conveyor belt equipped with multiple sets of baffles. The second conveyor belt is lower than the cutter assembly. The cutter assembly transports the cut wrapping paper to the surface of the second conveyor belt. The distance between the baffles is greater than the width of the cut wrapping paper. The cut wrapping paper smoothly falls onto the second conveyor belt. The multiple sets of baffles prevent the cut roll from sliding on the second conveyor belt. The distance between the baffles is controlled to be greater than the width of the cut wrapping paper. The roll is then transported to the discharge position for collection by an operator.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. Improved the positioning accuracy during the paper roll cutting process, ensuring the integrity of the packaging paper pattern and achieving high-quality packaging paper cutting production;

[0019] 2. Accurately control the cutter position and cutting speed to adapt to the processing of various types of packaging paper;

[0020] 3. The tension during the coil cutting process can be automatically adjusted to avoid excessive tension or instability caused by insufficient tension. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural diagram of an automatic paper cutter;

[0022] Figure 2 This is a schematic diagram of an automatic paper cutter from a front view;

[0023] Figure 3 This is a schematic diagram of the automatic paper cutter from a left angle.

[0024] In the accompanying drawings: 100, frame; 200, unwinding assembly; 300, cutter assembly; 310, first conveyor belt; 320, blade assembly; 330, flat cutting blade; 400, feeding assembly; 410, color mark sensor; 420, first guide roller; 430, second guide roller; 440, third guide roller; 450, fourth guide roller; 460, fifth guide roller; 470, sixth guide roller; 480, seventh guide roller; 500, receiving assembly; 510, second conveyor belt; 520, baffle. DETAILED DESCRIPTION

[0025] The present invention is further described below in conjunction with specific embodiments. The accompanying drawings are for illustrative purposes only and are schematic, not actual, representations. They should not be construed as limiting this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted from the drawings.

[0026] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and so on indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0027] Example 1

[0028] This embodiment is the first embodiment of an automatic paper cutter, comprising a frame 100, an unwinding assembly 200, a cutter assembly 300, a feeding assembly 400, a color mark sensor 410, a receiving assembly 500, and a controller for controlling the cutter assembly. The unwinding assembly 200, the cutter assembly 300, the feeding assembly 400, the color mark sensor 410, and the receiving assembly 500 are all arranged on the frame 100, and the controller is arranged inside the frame 100; the unwinding assembly 200 unwinds the roll material and unfolds it into wrapping paper, the feeding assembly 400 transports the wrapping paper to the cutter assembly 300 for cutting, and the receiving assembly 500 is arranged at the end of the cutter assembly 300 for transporting the cut wrapping paper to the discharge position; the color mark sensor 410 is arranged next to the feeding assembly 400, and the detection station is aligned with the wrapping paper. The color mark sensor 410 and the cutter assembly 300 are both connected to the controller signal.

[0029] like Figure 1 As shown, the automatic paper cutter frame 100 in this embodiment can be equipped with multiple unwinding assemblies 200, cutter assemblies 300, feed assemblies 400, color mark sensors 410, and a rewinding assembly 500, along with a controller, to form multiple paper roll processing positions, thereby improving packaging paper production efficiency. The worker first places the paper roll on the unwinding assembly 200, which gradually rotates to unwind the paper roll. The feeder assembly 400 transports the unwound strip of packaging paper to the cutter assembly 300, which cuts the paper roll into small pieces. The rewinding assembly 500, located at the end of the cutter assembly 300, receives the cut paper roll and transports it to the discharge position. During the operation of the automatic paper cutter, the color of the pattern on the wrapping paper is detected by the color mark sensor 410, and a color detection signal is transmitted to the controller. The controller adjusts the cutting speed of the cutter assembly 300, thereby improving the positioning accuracy during the cutting process of the paper stock roll, ensuring the integrity of the wrapping paper pattern, and achieving high-quality wrapping paper cutting production.

[0030] Multiple sets of color mark sensors 410 are provided, one on each side of the wrapping paper. Conventional wrapping paper rolls have a pattern on one side and a blank on the other. With multiple sets of color mark sensors 410 on each side, the inspection station can simultaneously focus on both the patterned and blank sides of the wrapping paper. Multiple sets of color inspection data are compared to determine the exact position of the wrapping paper, improving the accuracy of color mark detection.

[0031] The frame 100 is provided with a guide rail, and the color mark sensor 410 is provided with a slider that is slidably connected to the guide rail. The detection position of the color mark sensor 410 can be adjusted to different positions on the wrapping paper. The automatic paper cutter in this embodiment can be provided with a guide rail on the frame 100, and the slider on the color mark sensor 410 is slidably connected to the guide rail. This allows for rapid adjustment of the relative position of the color mark sensor 410 and the wrapping paper during operation, facilitating the acquisition of color information from multiple locations on the wrapping paper and further improving the processing accuracy of the cutter assembly 300.

[0032] The color mark sensor 410 includes a detection assembly and an adjuster for adjusting the angle between the detection assembly and the wrapping paper. The adjuster comprises a first connecting rod rotatably connected to the frame 100 and a second connecting rod rotatably connected to the first connecting rod. The detection assembly is connected to the second connecting rod. During operation of the paper cutter, the first and second connecting rods are rotated to ensure that the detection station on the color mark sensor 410 remains perpendicular to the wrapping paper, accurately receiving light reflected from the wrapping paper for color identification of the wrapping paper pattern.

[0033] The automatic paper cutter in this embodiment operates as follows: First, a roll of paper is placed on the unwind assembly 200, which gradually rotates to unwind the roll. The feed assembly 400 transports the unwound strip of paper to the cutter assembly 300, which cuts the roll into small wrapping sheets. The rewind assembly 500 receives the cut roll and transports it to the discharge position. During operation, the automatic paper cutter adjusts the color mark sensors 410 on the feed assembly 400 to ensure they are perpendicular to the roll of paper. This allows the color of the pattern on the wrapping sheet to be detected and the cutting speed of the cutter assembly 300 to be adjusted.

[0034] Example 2

[0035] This embodiment is the second embodiment of the automatic paper cutter. This embodiment is similar to the first embodiment, except that the cutter assembly 300 includes a first conveyor belt 310, a blade assembly 320, and a motor for driving the blade assembly 320. The first conveyor belt 310 is arranged at the end of the feed assembly 400 and is lower than the feed assembly 400. It is used to transport the packaging paper to the blade assembly 320. The blade assembly 320 is arranged above the first conveyor belt 310. The motor is electrically connected to the blade assembly 320. Figure 1 、 Figure 2As shown, the first conveyor belt 310 transports the roll material transported by the feeding assembly 400 to the blade assembly 320 for cutting. The controller receives the signal from the color mark sensor 410 and then controls the working position and cutting speed of the blade assembly 320 through the servo motor, thereby realizing automatic control of the cutting speed of the cutter assembly 300 by the color mark sensor 410.

[0036] The blade assembly 320 includes a cutting roller and circular cutting blades. The cutting roller is rotatably connected to the frame 100, and the circular cutting blades are evenly distributed on the cutting roller. During operation, the cutting roller drives the circular cutting blades to rotate. The even distribution of the circular cutting blades ensures a stable and easily controlled cutting process for the wrapping paper, resulting in a high cutting speed.

[0037] The blade assembly 320 includes a flat cutting blade 330 that can reciprocate in a direction perpendicular to the first conveyor belt 310. The flat cutting blade 330 is movably connected to the frame 100. Figure 3 As shown, the flat cutting blade 330 reciprocates in a direction perpendicular to the first conveyor belt 310 to complete the cutting of the packaging paper, the cutting position is more accurate, and the processing accuracy is high.

[0038] like Figure 1 As shown, the receiving assembly 500 is a second conveyor belt 510 equipped with multiple sets of baffles 520. The second conveyor belt 510 is lower than the cutter assembly 300. The cutter assembly 300 transports the cut wrapping paper to the surface of the second conveyor belt 510. The distance between the baffles 520 is greater than the width of the cut wrapping paper. Multiple sets of baffles 520 are installed on the second conveyor belt 510, and the spacing between the baffles 520 is greater than the width of the cut roll. After the roll is cut into small pieces of wrapping paper by the cutter assembly 300, the first conveyor belt 310 continues to transport the wrapping paper toward the second conveyor belt 510. After leaving the first conveyor belt 310, the wrapping paper falls into the gaps between the baffles 520 due to inertia. The second conveyor belt 510 in this embodiment can be set as a non-continuously moving conveyor belt, and the height of the baffle plate 520 can be increased. After collecting multiple groups of packaging papers in the gap position of the same baffle plate 520, the movement of the second conveyor belt 510 can be controlled. The intermittently moving second conveyor belt 510 collects multiple groups of packaging papers at the same position, reducing the workload of the subsequent packaging paper removal process.

[0039] The working principle of the automatic paper cutter in this embodiment is as follows: the controller receives the signal from the color mark sensor 410, and then controls the reciprocating motion of the flat cutting blade 330 through the servo motor. The first conveyor belt 310 transports the packaging paper to the flat cutting blade 330 for cutting, and transports the cut packaging paper to the second conveyor belt 510. The second conveyor belt 510 and the baffle plate 520 transport the packaging paper to the discharge position.

[0040] Example 3

[0041] This embodiment is the third embodiment of the automatic paper cutter. This embodiment is similar to the first embodiment, except that the feeding assembly 400 includes a traction member for clamping and conveying the packaging paper forward, and a first guide roller 420, a second guide roller 430, a third guide roller 440, a fourth guide roller 450, a fifth guide roller 460, a sixth guide roller 470, and a seventh guide roller 480, which are arranged on the frame 100 and whose heights decrease in sequence. The first guide roller 420, the second guide roller 430, the fourth guide roller 450, the sixth guide roller 470, and the seventh guide roller 480 are located on the same side of the packaging paper, the third guide roller 440 and the second guide roller 430 are located on different sides of the packaging paper, and the fifth guide roller 460 and the third guide roller 440 are located on the same side of the packaging paper. After passing through the seventh guide roller 480, the packaging paper enters the traction member. Figure 2 As shown, the first, second, fourth, and seventh guide rollers 420, 430, 450, 470, and 480 can change the direction of movement of the wrapping paper. The traction member provides traction for the wrapping paper, clamping it and transporting it forward. The third and fifth guide rollers 440 and 460 are located on the same side of the wrapping paper, but on a different side from the second guide roller 430. This ensures that the tension on the wrapping paper remains stable throughout the movement of the feed assembly 400, ensuring that the paper remains taut.

[0042] The feed assembly 400 is equipped with a tension sensor. Both the tension sensor and the unwind assembly 200 are connected to the controller. In this embodiment, the unwind assembly 200 comprises an unwinding roller. Tension sensors are installed on the third and fifth guide rollers 440 and 460. The PLC component within the paper cutter controls the rotational speed and torque of the unwinding rollers, ensuring a constant tension on the wrapping paper and achieving automatic tension control.

[0043] The working principle of the automatic paper cutter in this embodiment is as follows: the first guide roller 420, the second guide roller 430, the fourth guide roller 450, the sixth guide roller 470, and the seventh guide roller 480 can change the movement direction of the web and provide traction for the web; tension sensors can be set on the third guide roller 440 and the fifth guide roller 460, and the unwinding assembly 200 connected to their signals can be adjusted at the same time to keep the web in a tensioned state at all times.

[0044] In the specific contents of the above-mentioned specific implementation methods, the various technical features can be combined in any non-contradictory manner. In order to make the description concise, not all possible combinations of the above-mentioned technical features are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0045] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. A person skilled in the art will be able to make other variations or modifications based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. An automatic paper cutter, characterized in that: The invention comprises a frame (100), an unwinding assembly (200), a cutter assembly (300), a feeding assembly (400), a color mark sensor (410), a receiving assembly (500) and a controller for controlling the cutter assembly, wherein the unwinding assembly (200), the cutter assembly (300), the feeding assembly (400), the color mark sensor (410) and the receiving assembly (500) are all arranged on the frame (100), and the controller is arranged in the frame (100); the unwinding assembly (200) ) unwinds the coiled material and unfolds it into packaging paper; the feeding assembly (400) transports the packaging paper to the cutter assembly (300) for cutting; the receiving assembly (500) is arranged at the end of the cutter assembly (300) and is used to transport the cut packaging paper to the discharge position; the color mark sensor (410) is arranged beside the feeding assembly (400) and the detection station is aligned with the packaging paper; the color mark sensor (410) and the cutter assembly (300) are both connected to the controller signal.

2. The automatic paper cutter according to claim 1, characterized in that: The color mark sensors (410) are provided in multiple groups and are respectively arranged on both sides of the packaging paper.

3. The automatic paper cutter according to claim 1, characterized in that: A guide rail is provided on the frame (100), and a slider is provided on the color mark sensor (410). The slider is slidably connected to the guide rail, and the detection position of the color mark sensor (410) can be adjusted to different positions of the packaging paper.

4. The automatic paper cutter according to claim 1, characterized in that: The color mark sensor (410) comprises a detection component and an adjuster for adjusting the angle between the detection component and the packaging paper, the adjuster comprising a first connecting rod rotatably connected to the frame (100) and a second connecting rod rotatably connected to the first connecting rod, and the detection component is connected to the second connecting rod.

5. The automatic paper cutter according to any one of claims 1 to 4, characterized in that: The cutter assembly (300) comprises a first conveyor belt (310), a blade assembly (320), and a motor for driving the blade assembly (320); the first conveyor belt (310) is arranged at the end of the feeding assembly (400) and is lower in height than the feeding assembly (400) and is used to transport the packaging paper to the blade assembly (320); the blade assembly (320) is arranged above the first conveyor belt (310); and the motor is electrically connected to the blade assembly (320).

6. The automatic paper cutter according to claim 5, characterized in that: The blade assembly (320) comprises a cutting roller and circular cutting blades, the cutting roller is rotatably connected to the frame (100), and the circular cutting blades are evenly distributed on the cutting roller.

7. The automatic paper cutter according to claim 5, characterized in that: The blade assembly (320) includes a flat cutting blade (330) capable of reciprocating in a direction perpendicular to the first conveyor belt (310), and the flat cutting blade (330) is movably connected to the frame (100).

8. The automatic paper cutter according to claim 1, characterized in that: The feeding assembly (400) includes a traction member for clamping and conveying the packaging paper forward, and a first guide roller (420), a second guide roller (430), a third guide roller (440), a fourth guide roller (450), a fifth guide roller (460), a sixth guide roller (470), and a seventh guide roller (480) which are arranged on the frame (100) and whose heights decrease in sequence. The first guide roller (420), the second guide roller (430), the fourth guide roller (450), the sixth guide roller (470), and the seventh guide roller (480) are located on the same side of the packaging paper, the third guide roller (440) and the second guide roller (430) are located on different sides of the packaging paper, and the fifth guide roller (460) and the third guide roller (440) are located on the same side of the packaging paper. After the packaging paper passes through the seventh guide roller (480), it enters the traction member.

9. The automatic paper cutter according to claim 8, characterized in that: The feeding assembly (400) is provided with a tension sensor, and the tension sensor and the unwinding assembly (200) are both connected to the controller signal.

10. The automatic paper cutter according to claim 1, characterized in that: The receiving assembly (500) is a second conveyor belt (510) provided with a plurality of baffle plates (520). The height of the second conveyor belt (510) is lower than that of the cutter assembly (300). The cutter assembly (300) transports the cut packaging paper to the surface of the second conveyor belt (510). The distance between the baffle plates (520) is greater than the width of the cut packaging paper.

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