A slitting and cutting floating cutter and label cutting machine

Abstract

The utility model provides a kind of slitting cutting floating cutter and label cutting machine, belong to cutting technical field, comprising: slitting cutter, its quantity is multiple, multiple slitting cutter is linear distribution;Support part, its quantity is two, two support parts are set on label cutting machine frame, installation rod is set between two support parts, multiple slitting cutter is all set on installation rod, and installation rod can only linearly move relative to support part;Operating part, it is transmission connection with installation rod, for pushing installation rod moves relative to support part;Advantage is that installation rod is fine-tuned along linear direction by operating part drive, drives all slitting cutter synchronous movement, quickly corrects cutting position, effectively compensates initial alignment error, avoids waste product generation.

Description

Technical Field

[0001] This utility model belongs to the field of cutting technology, and in particular relates to a slitting and floating cutting tool and a label cutting machine. Background Technology

[0002] In the label slitting process, wide rolls of material (such as self-adhesive labels, films, and composite paper) often need to be cut evenly along the longitudinal direction into multiple narrow finished products of a specified width. This process relies on multiple slitting blades precisely arranged along the width of the material to achieve synchronous and continuous cutting operations. However, in actual production, especially in the initial slitting stage after equipment startup or material change, factors such as material unwinding eccentricity, delayed response of the tension control system, poor alignment of guide rollers, or changes in ambient temperature and humidity often cause lateral shifts or uneven tension distribution of the label material during feeding, which in turn causes the slitting cut line to deviate from the preset position.

[0003] When the cutting position deviates, it can cause minor issues like edge burrs and uneven cuts, or even lead to width deviations in some strips or cutting into printed patterns or edge markings, resulting in the scrapping of the entire roll of material and severely impacting product yield and production efficiency. Traditional slitting devices often use a fixed blade holder structure, where the slitting blade position is set mechanically during installation, making online adjustment difficult once in operation. Correction requires stopping the machine, removing the protective cover, manually loosening the locking components, and adjusting each blade position individually—a cumbersome and time-consuming process that heavily relies on operator experience. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a floating tool that can be adjusted during the cutting process.

[0005] The objective of this utility model can be achieved through the following technical solution: a slitting and cutting floating tool, comprising:

[0006] There are multiple slitting blades, and the multiple slitting blades are linearly distributed;

[0007] The support unit consists of two parts, which are mounted on the label cutting machine frame. A mounting rod is provided between the two support units, and multiple slitting blades are mounted on the mounting rod. The mounting rod can only move linearly relative to the support unit.

[0008] An operating unit, which is kinetically connected to the mounting rod, is used to push the mounting rod to move relative to the support unit.

[0009] In the above-mentioned slitting floating cutter, the mounting rod is a polygonal prism rod, with both ends of the mounting rod passing through the support portion, and it can move linearly relative to the support portion.

[0010] In the above-mentioned slitting and floating cutter, an abutment plate is fixedly provided at the end of the mounting rod, a guide post is fixedly provided on the abutment plate passing through the support part and being able to move linearly relative to the support part, and an elastic element is provided between the support part and the abutment plate, the operating part is provided on the guide post, the operating element is provided on the side of the support part away from the elastic element, and the relative position of the operating element on the guide post can be adjusted.

[0011] In the above-mentioned slitting floating cutter, the operating part includes an operating knob, and the guide post is screwed and fixed to the operating knob.

[0012] In the above-mentioned slitting floating cutter, the outer peripheral surface of the operating knob is provided with anti-slip texture.

[0013] In the above-mentioned slitting floating cutter, the elastic element includes a spring, which is sleeved on the guide post, and the two ends of the spring abut against the abutment plate and the support portion, respectively.

[0014] In the above-mentioned slitting and floating cutter, an operating handle is fixedly provided on the support part. The operating handle is rotatably connected to the label cutting machine frame, and the operating handle is fixed to the support part.

[0015] In the above-mentioned slitting and floating cutter, the operating handle is provided with a positioning pin, and the label cutting frame is provided with a positioning hole, which can be inserted and fixed with the positioning pin.

[0016] In the above-mentioned slitting and floating blade, a protective cover is movably mounted on the label cutting frame to cover the slitting blade.

[0017] A label cutting machine includes the aforementioned slitting floating blade.

[0018] Compared with existing technologies, the advantages of this invention are as follows: by mounting multiple slitting blades on a linearly movable mounting rod, and with the support and operating parts working together to achieve overall displacement adjustment of the mounting rod, it exhibits excellent adaptability and stability. During the initial label slitting process, uneven material tension or material feed deviation often leads to slitting position shifts; however, by driving the mounting rod to make fine adjustments along a straight line through the operating part, all slitting blades move synchronously, quickly correcting the cutting position, effectively compensating for initial alignment errors, and avoiding the generation of defective products. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of a floating slitting cutter;

[0020] Figure 2 yes Figure 1 Another perspective illustration;

[0021] Figure 3 yes Figure 2 A three-dimensional structural diagram after the operating handle has been removed;

[0022] Figure 4 yes Figure 1 A three-dimensional structural diagram showing the addition of a protective cover.

[0023] In the diagram, 100 is the slitting knife; 101 is the support part; 102 is the mounting rod; 103 is the operating part; 104 is the abutment plate; 105 is the guide post; 106 is the elastic element; 200 is the operating handle; 201 is the positioning pin; 202 is the positioning hole; 203 is the operating lever; 300 is the protective cover; and 400 is the mounting bracket. Detailed Implementation

[0024] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0025] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0026] like Figures 1-4 As shown, a slitting floating cutter includes:

[0027] There are multiple slitting blades 100, which are linearly distributed.

[0028] There are two support parts 101. The two support parts 101 are set on the label cutting machine frame. An installation rod 102 is set between the two support parts 101. Multiple slitting blades 100 are set on the installation rod 102. The installation rod 102 can only move linearly relative to the support parts 101.

[0029] The operating part 103 is connected to the mounting rod 102 for driving the mounting rod 102 to move relative to the support part 101.

[0030] In this embodiment, by mounting multiple slitting blades 100 on a linearly movable mounting rod 102, and with the support part 101 and the operating part 103 working together to adjust the overall displacement of the mounting rod 102, good adaptability and stability are achieved. During the initial slitting process of labels, uneven material tension or material feed deviation often leads to a shift in the slitting position; however, by driving the mounting rod 102 to make fine adjustments in a linear direction through the operating part 103, all slitting blades 100 are moved synchronously, quickly correcting the cutting position, effectively compensating for initial alignment errors, and avoiding the generation of defective products.

[0031] Once the cutting process stabilizes, the mounting rod 102 remains in a fixed position under the limiting action of the support part 101, ensuring a constant relative distance between each slitting blade 100 and guaranteeing the accuracy and consistency of continuous cutting.

[0032] Specifically, the mounting rod 102 is a polygonal prism rod, with both ends of the mounting rod 102 passing through the support part 101, and it can move linearly relative to the support part 101.

[0033] In this embodiment, by using a mounting rod 102 with a polygonal cross section and inserting its two ends into two support parts 101, the precise linear guidance and stable floating adjustment of the slitting knife 100 are achieved.

[0034] The polygonal prism-shaped rod structure allows it to slide freely along the axial direction when passing through the support 101, while effectively preventing the mounting rod 102 from rotating circumferentially during adjustment or cutting, thus ensuring the stability and synchronization of the spatial position of each slitting knife 100.

[0035] An abutment plate 104 is fixedly provided at the end of the mounting rod 102. A guide post 105 is provided on the abutment plate 104, passing through the support part 101 and being able to move linearly relative to the support part 101. An elastic member 106 is provided between the support part 101 and the abutment plate 104. An operating part 103 is provided on the guide post 105. The operating part 103 is located on the side of the support part 101 away from the elastic member 106, and the relative position of the operating part 103 on the guide post 105 can be adjusted.

[0036] The elastic element 106 applies a continuous elastic thrust, pushing the abutment plate 104 and the mounting rod 102 fixed thereto towards the support portion 101. This ensures that the operating part 103, mounted on the guide post 105, remains tightly fitted against the end face (or limiting surface) of the support portion 101. Based on this, the positioning reference point can be reset by changing the axial position of the operating part 103 on the guide post 105. When the operating part 103 is adjusted to a new position, the system automatically presses and locks it against the corresponding end face of the support portion 101 under the action of the elastic element 106, thereby driving the entire mounting rod 102 and the slitting blade 100 to move synchronously to the new working position. Since multiple slitting blades 100 are fixed on the same mounting rod 102, their relative positions remain unchanged, thus achieving error-free and highly repeatable position adjustment of the entire blade assembly.

[0037] Furthermore, the operating unit 103 includes an operating knob screwed to the guide post 105. When the operating knob is rotated, the guide post 105 is constrained by the abutment plate 104 and the mounting rod 102 and can only move axially but cannot rotate (limited by the polygonal mounting rod 102 and the support structure). Therefore, the rotational motion of the operating knob is converted into the linear displacement of the guide post 105 (and the mounting rod 102 and the slitting knife 100 fixed thereto), realizing the spiral fine adjustment of the position of the slitting knife 100. The adjustment accuracy is high and the force is controllable, which facilitates fine knife setting.

[0038] To enhance ease of operation and safety, the outer surface of the control knob is equipped with anti-slip textures (such as knurling, grooves, or serrations), which significantly increases the friction between the fingers and the knob, preventing slippage and allowing users to apply force stably even when wearing gloves or with wet hands, achieving precise and effortless adjustment.

[0039] The elastic element 106 adopts a spring structure, which is sleeved on the guide post 105. One end of the spring abuts against the abutment plate 104, and the other end abuts against the support part 101, forming a preload system arranged axially along the guide post 105. By using the guide post 105 as the installation and guiding reference for the spring, the spring is subjected to uniform force and does not deviate during compression or extension, effectively ensuring the stability and reliability of the elastic effect.

[0040] An operating handle 200 is fixedly installed on the support part 101. The operating handle 200 is rotatably connected to the label cutting machine frame, and the operating handle 200 is fixed to the support part 101.

[0041] Specifically, a mounting bracket 400 is fixedly installed on the label cutting machine frame, and the operating handle 200 is rotatably mounted on the mounting bracket 400.

[0042] The present invention further includes an operating handle 200 fixedly mounted on the support 101. This operating handle 200 is rotatably connected to the label cutting machine frame, allowing the support 101 and its supporting components, such as the mounting rod 102 and the slitting blade 100, to rotate synchronously around the pivot with the operating handle 200. When it is necessary to adjust the position of the slitting blade 100, replace the blade, or perform cleaning and maintenance, the user can manually rotate the operating handle 200 to move the slitting blade 100 from inside the equipment or a narrow working area to an open external area, fully exposing it to the operator's view and operating range, greatly improving the visibility and convenience of maintenance operations.

[0043] Specifically, in this embodiment, there are two operating handles 200, symmetrically arranged on both sides of the extending direction of the slitting knife 100, and rigidly connected by a common operating rod 203. The support part 101 is fixedly connected to the operating rod 203. When it is necessary to adjust or replace the slitting knife 100, the operator can simultaneously move either operating handle 200. The operating rod 203 drives the support parts 101 and the mounting rod 102 assembly on both sides to rotate synchronously around the pivot, so that the slitting knife 100 is fully extended from the internal working area of ​​the equipment and exposed to the operator's field of vision, which is convenient for visual observation, manual adjustment or quick knife replacement.

[0044] The two operating handles 200 and the operating rod 203 form a stable "frame-type" transmission mechanism, which ensures that the force is evenly distributed on both sides and there is no eccentric torque during rotation. This effectively prevents problems such as tilting of the support part 101, jamming of the guide column 105 or deformation of the mounting rod 102 caused by unilateral operation, and improves the smoothness of rotation and structural durability.

[0045] The operating handle 200 is equipped with a positioning pin 201, and the label cutting machine frame is equipped with a positioning hole 202, which can be inserted and fixed with the positioning pin 201. When the operating handle 200 drives the slitting knife 100 to rotate to the normal working position, the positioning pin 201 can be inserted into the positioning hole 202 to form a mechanical limit lock, which effectively prevents the knife assembly from rotating or displacing unexpectedly during the operation of the equipment, ensuring the long-term stability of the relative position of the slitting knife 100 on the frame, and ensuring cutting accuracy and operational safety.

[0046] When the slitting knife 100 needs to be adjusted, replaced, or cleaned and maintained, the operator only needs to apply a moderate external force to the operating handle 200 to overcome the resistance between the positioning pin 201 and the positioning hole 202 (such as elastic snapping force or interference fit force), so that the positioning pin 201 is disengaged from the positioning hole 202, and then the entire knife assembly is rotated around the shaft, so that the slitting knife 100 is smoothly unfolded to the external visible area, which is convenient for visual inspection and manual operation.

[0047] In this invention, two positioning pins 201 are provided, corresponding to the normal working position and the maintenance position of the slitting knife 100, respectively. The label cutting machine frame is provided with two matching positioning holes 202 (or limiting structures). When the operating handle 200 drives the knife assembly to rotate to the corresponding position, the corresponding positioning pin 201 automatically inserts into the positioning hole 202 to achieve rigid locking of that position.

[0048] Specifically: When the tool assembly rotates to the normal operating position, the first positioning pin 201 inserts into the first positioning hole 202 on the frame, firmly fixing the support 101 and the slitting blade 100, ensuring no displacement or vibration during high-speed cutting, and guaranteeing cutting accuracy and operational safety; when maintenance is required, force is applied to disengage the first positioning pin 201, and the operating handle 200 is rotated until the tool assembly is fully extended to the maintenance position. At this time, the second positioning pin 201 inserts into the second positioning hole 202, stably locking the tool assembly in the external visible area, preventing accidental rebound or swinging of the tool holder due to the operator releasing the handle, and providing a safe, stable, and static operating platform for tool replacement, cleaning, or adjustment.

[0049] A protective cover 300 is movably mounted on the label cutting machine frame, covering the slitting knife 100. This protective cover 300 can be opened and closed, forming a physical barrier over the slitting knife 100, effectively preventing operators from accidentally coming into contact with the high-speed moving slitting knife 100 during equipment operation or debugging, thus avoiding safety accidents such as cuts and entanglement. The protective cover 300 adopts a movable connection structure (such as hinged, sliding, or quick-release installation), which can be manually or automatically opened when maintenance, adjustment, or replacement of the slitting knife 100 is required, exposing the knife's working area. During normal cutting operations, the protective cover 300 is closed and can be reliably positioned using locking, magnetic, or limiting structures to prevent accidental opening due to vibration or airflow. Especially when the slitting knife 100 is rotated and unfolded via the operating handle 200, the protective cover 300 can be designed to open synchronously or independently, ensuring that the danger zone is clearly indicated even when the knife is exposed, balancing safety and operational convenience.

[0050] In addition, the protective cover 300 can be made of transparent materials (such as PC or acrylic sheets), which not only ensures structural strength, but also allows operators to observe the tool's operating status, material feed, and cutting effect without opening the cover, achieving "visual protection" and facilitating real-time monitoring and troubleshooting.

[0051] A label cutting machine includes the aforementioned slitting floating cutting tool.

[0052] It should be noted that in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly defined. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly defined. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0053] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0054] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A floating slitting cutter, characterized in that, include: There are multiple slitting blades, and the multiple slitting blades are linearly distributed; The support unit consists of two parts, which are mounted on the label cutting machine frame. A mounting rod is provided between the two support units, and multiple slitting blades are mounted on the mounting rod. The mounting rod can only move linearly relative to the support unit. An operating unit, which is kinetically connected to the mounting rod, is used to push the mounting rod to move relative to the support unit.

2. The slitting floating cutter according to claim 1, characterized in that, The mounting rod is a polygonal prism rod, with both ends passing through the support portion and capable of linear movement relative to the support portion.

3. A slitting floating cutter according to claim 1, characterized in that, An abutment plate is fixedly provided at the end of the mounting rod. A guide post is fixedly provided on the abutment plate, passing through the support part and capable of linear movement relative to the support part. An elastic element is provided between the support part and the abutment plate. An operating part is provided on the guide post and on the side of the support part away from the elastic element. The relative position of the operating part on the guide post can be adjusted.

4. A slitting floating cutter according to claim 3, characterized in that, The operating part includes an operating knob, and the guide post is screwed and fixed to the operating knob.

5. A slitting floating cutter according to claim 4, characterized in that, The outer circumference of the operating knob is provided with anti-slip texture.

6. A slitting floating cutter according to claim 3, characterized in that, The elastic element includes a spring, which is sleeved on the guide post, and the two ends of the spring abut against the abutment plate and the support portion, respectively.

7. A slitting floating cutter according to claim 1, characterized in that, An operating handle is fixedly installed on the support part. The operating handle is rotatably connected to the label cutting machine frame, and the operating handle is fixed to the support part.

8. A slitting floating cutter according to claim 7, characterized in that, The operating handle is provided with a positioning pin, and the label cutting machine frame is provided with a positioning hole, which can be inserted and fixed with the positioning pin.

9. A slitting floating cutter according to claim 1, characterized in that, A protective cover is movably mounted on the label cutting machine frame and covers the slitting blade.

10. A label cutting machine, characterized in that, Including the slitting floating cutter as described in any one of claims 1-9.

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