Plastic core cutting device with noise reduction function

Abstract

The utility model relates to a plastic roll core cutting device with noise reduction function belongs to plastic roll core cutting device technical field. This plastic roll core cutting device with noise reduction function, include: the processing station, the one side fixed mounting of processing station has the cutting box, the noise reduction guiding mechanism is used for the noise reduction of the plastic roll core cutting and sets up in the outside of cutting box, wherein, the noise reduction guiding mechanism includes the fixed seat fixed mounting in the outside of processing station, the other side of fixed seat is provided with the noise reduction subassembly, through setting up the noise reduction subassembly on the fixed seat, installs in the outside of cutting box, can it in the cutting process actively absorb roll core propagation's structure resonance sound and impact noise, significantly reduces the cutting sound level, promotes the mute performance of equipment operation, simultaneously, through adding the guiding component outside the cutting box, can guide its steady drop along the set path after roll core is cut off, avoids falling back into the inside of cutting box.

Description

Technical Field

[0001] This utility model relates to the technical field of plastic core cutting devices, and in particular to a plastic core cutting device with noise reduction function. Background Technology

[0002] Plastic cores are widely used in roll products such as tapes, films, labels, and release papers, playing a crucial role as an internal support frame in the winding, transportation, and use of various roll materials. During the production and processing of plastic cores, a long plastic core typically needs to be cut into several fixed-length segments to meet the assembly requirements of different downstream equipment or product sizes. Therefore, core cutting devices have become one of the commonly used auxiliary processing equipment for plastic core manufacturers.

[0003] Existing core cutting devices mostly use mechanical blades to directly cut hollow plastic cores. However, there is still a prominent problem in practical applications. Because the plastic core is hollow, it has certain resonance characteristics. When the blade enters, it is very easy to cause structural vibration, impact noise and cavity resonance effect. Especially in continuous batch processing or high-intensity operation, the noise generated not only interferes with the operator's work experience, but is also not conducive to noise reduction management of the production environment. Utility Model Content

[0004] Based on this, it is necessary to address the issue that the hollow structure of the plastic core body has certain resonance characteristics, which easily triggers structural vibration, impact noise, and cavity resonance effects when the cutter enters. Especially during continuous batch processing or high-intensity operations, the noise generated not only interferes with the operator's work experience but also hinders noise reduction management in the production environment. Therefore, a noise-reducing plastic core cutting device is provided, comprising: a processing table, on one side of which a cutting box is fixedly installed; and a noise-reducing guide mechanism, which is disposed on the outside of the cutting box for noise reduction during plastic core cutting. The noise-reducing guide mechanism includes a fixed base fixedly installed on the outside of the processing table, a noise-reducing component on the other side of the fixed base, and a guide component on the outside of the cutting box.

[0005] The noise reduction component includes multiple support frames fixedly installed on the surface of the processing table. Each of the multiple support frames has two movable frames inside, and each of the two movable frames has a guide wheel rotatably installed inside. The surface of the guide wheel has multiple sound-absorbing holes.

[0006] The guide wheel surface is set in a V shape, and the two guide wheels are located on the upper and lower sides of the plastic core, respectively.

[0007] A guide frame is slidably fitted on the outer side of the movable frame. The other side of the guide frame is fixedly connected to the support frame. A spring is fixedly installed inside the guide frame, and the other end of the spring is pressed against the movable frame.

[0008] Soundproof glass is fixedly installed on both sides of the cutting box, and two soundproof cotton pieces are fixedly installed on the side of the cutting box near the fixed base.

[0009] The guide assembly includes a fixed frame that is fixedly installed on one side of the cutting box. An electric push rod is fixedly installed on the top of the fixed frame. The output end of the electric push rod extends into the interior of the fixed frame. Two adapter cottons are provided inside the fixed frame. One of the adapter cottons is fixedly connected to the output end of the electric push rod.

[0010] Sealing cotton is fixedly installed on the side of each of the two adapter cottons that are far apart from each other, and the other side of each of the two sealing cottons is fixedly connected to the inner wall of the fixing frame.

[0011] A funnel frame is fixedly installed on the inner bottom wall of the cutting box, and a collection frame is provided at the bottom of the funnel frame. The collection frame is slidably connected to the bottom of the cutting box.

[0012] Beneficial effects 1. By setting the noise reduction component on the fixed base and installing it on the outside of the cutting box, it can actively absorb the structural resonance sound and impact noise transmitted from the core during the cutting process, significantly reducing the cutting sound level and improving the quietness of the equipment operation. At the same time, by adding a guide component to the outside of the cutting box, the core can be guided to fall stably along the set path after it is cut, avoiding falling back into the inside of the cutting box. 2. During the cutting process, the electric pusher moves the adapter cotton on one side inward, allowing it to engage with the adapter cotton on the other side. This creates a reliable clamping effect on the plastic core to be cut, ensuring the core remains stable throughout the cutting process and preventing shaking or positional shifts, thus improving cutting accuracy. After cutting, the electric pusher automatically returns to its original position, causing the adapter cotton to release the core. At this point, the uncut core behind it is pushed forward by external force, pushing out the cut core segment, achieving automatic material discharge and continuous processing. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2This is a schematic diagram of the noise reduction guiding mechanism of this utility model; Figure 3 This is a schematic diagram of the fixing frame and guide wheel structure of this utility model; Figure 4 This is a schematic diagram of the guide wheel and movable frame structure of this utility model; Figure 5 This is a schematic diagram of the guide component structure of this utility model.

[0015] Figure label: 100. Processing table; 200. Cutting box; 210. Soundproof glass; 220. Soundproof cotton; 300. Noise reduction guide mechanism; 310. Fixed base; 320. Noise reduction component; 321. Support frame; 322. Movable frame; 323. Guide wheel; 324. Guide frame; 325. Spring; 326. Sound absorption hole; 330. Guide component; 331. Fixed frame; 332. Electric push rod; 333. Sealing cotton; 334. Adaptor cotton; 335. Funnel frame; 336. Collection frame. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0017] The following is combined Figures 1-5 This invention describes a plastic core cutting device with noise reduction function.

[0018] In one embodiment, a plastic core cutting device with noise reduction function, such as Figure 1 As shown, the plastic core cutting device with noise reduction function in this embodiment includes: a processing table 100, a cutting box 200 fixedly installed on one side of the processing table 100; a noise reduction guide mechanism 300, which is used to reduce noise when cutting plastic cores and is disposed on the outside of the cutting box 200; wherein, the noise reduction guide mechanism 300 includes a fixing seat 310 fixedly installed on the outside of the processing table 100, a noise reduction component 320 disposed on the other side of the fixing seat 310, and a guide component 330 disposed on the outside of the cutting box 200.

[0019] In this embodiment, by setting the noise reduction component 320 on the fixed base 310 and installing it on the outside of the cutting box 200, it can actively absorb the structural resonance sound and impact noise transmitted from the core during the cutting process, significantly reducing the cutting sound level and improving the quietness of the equipment operation. At the same time, by adding a guide component 330 to the outside of the cutting box 200, the core can be guided to fall stably along a set path after it is cut, avoiding falling back into the interior of the cutting box 200. It should be noted that existing plastic core cutting devices typically include basic units such as a processing table 100, a cutting box 200, a cutting tool assembly, a drive mechanism, and a positioning structure for supporting or clamping the core. The noise reduction component 320 and the guide component 330, which are located outside the cutting box 200, are both additional functional components. Their installation positions avoid the tool movement path and the core clamping components. The noise reduction component 320 is fixed to one side of the processing table 100 by the fixing base 310 and does not participate in the tool transmission or core loading process, thus having good structural independence and compatibility. The guide component 330 is arranged in the dropping direction after core cutting to guide the natural downward movement of the cutting section. It does not contact the main cutting area, will not interfere with or affect the normal use of the existing cutting device, and does not change its basic cutting principle and operation process. It should be noted that the cutting box 200, as the core mechanism for performing the cutting action in this device, contains a cutting assembly for cutting the plastic core, including: a drive motor, a transmission mechanism, a cutting blade, a sliding guide rail, and a blade holder. The cutting blade is mounted on the blade holder and can reciprocate along the guide rail in a horizontal or vertical direction. The drive motor drives the blade holder through the transmission mechanism, enabling the cutting blade to precisely cut the plastic core. If necessary, the cutting box 200 can also be equipped with auxiliary limiting devices or positioning pins to improve cutting accuracy and safety. All power output structures, cutting blade components, and transmission actuators directly related to core cutting are enclosed within the cutting box 200.

[0020] like Figure 2 , Figure 3 and Figure 4 As shown, the noise reduction component 320 includes multiple support frames 321 fixedly installed on the surface of the processing table 100. Each of the multiple support frames 321 has two movable frames 322 inside. Each of the two movable frames 322 has a guide wheel 323 rotatably installed inside. The surface of the guide wheel 323 has multiple sound-absorbing holes 326.

[0021] In this embodiment, multiple guide wheels 323 not only guide and limit the uncut plastic core, ensuring a stable axial posture before it enters the cutting box 200 and preventing deviation and shaking, but also, through their upper and lower arrangement, form stable contact with the upper and lower sides of the core. When one end of the core is cut by the blade, because the guide wheels 323 directly contact the core surface, the sound-absorbing holes 326 can absorb structural noise and echoes propagating along the hollow cavity of the core immediately, effectively reducing the instantaneous noise and resonance effect caused by the blade impact.

[0022] The surface of the guide wheel 323 is set in a V-shape, and the two guide wheels 323 are located on the upper and lower sides of the plastic core, respectively.

[0023] In this embodiment, the surface of the guide wheel 323 is set with a V-shaped structure, which enables it to form a multi-point contact surface when it comes into contact with the plastic core. Compared with traditional flat wheels or arc wheels, the V-shaped structure can provide stronger axial limiting ability, effectively preventing the core from axially shifting or shaking during the transmission process, and improving the cutting positioning accuracy.

[0024] A guide frame 324 is slidably sleeved on the outer side of the movable frame 322. The other side of the guide frame 324 is fixedly connected to the support frame 321. A spring 325 is fixedly installed inside the guide frame 324. The other end of the spring 325 is pressed against the movable frame 322.

[0025] In this embodiment, driven by the spring 325, the movable frame 322 always applies a stable thrust toward the core, thereby driving the guide wheel 323 inside to maintain stable contact with the surface of the plastic core. Regardless of whether the core has slight deviation or dimensional error during the conveying or cutting process, the guide wheel 323 can automatically follow and adjust under the action of the spring 325 to ensure continuous limiting and clamping support for the core.

[0026] Soundproof glass 210 is fixedly installed on both sides of the cutting box 200, and two soundproof cotton 220 is fixedly installed on the side of the cutting box 200 near the fixing seat 310.

[0027] In this embodiment, as the plastic core gradually enters the cutting box 200 during the conveying and guiding process, the sound insulation cotton 220 located on both sides of the box entrance can adhere to and wrap the outer side of the core. This ensures that the core can smoothly enter the cutting station while reducing structural sound leakage points. At the same time, the sound insulation cotton 220 has a certain degree of flexibility and self-adaptability, which can adapt to cores of different outer diameters and avoid noise reduction failure due to excessive gaps. In addition, the soundproof glass 210 creates a partially enclosed space in the entire cutting area, which can further suppress the outward diffusion of cutting impact sound, equipment vibration sound and echo sound. It also has good visibility, making it easy for operators to monitor the cutting status at any time without opening the box.

[0028] like Figure 2 and Figure 5 As shown, the guide assembly 330 includes a fixed frame 331 fixedly installed on one side of the cutting box 200. An electric push rod 332 is fixedly installed on the top of the fixed frame 331. The output end of the electric push rod 332 extends into the interior of the fixed frame 331. Two adapter cottons 334 are provided inside the fixed frame 331. One of the adapter cottons 334 is fixedly connected to the output end of the electric push rod 332.

[0029] In this embodiment, during the cutting process, the electric push rod 332 drives the adapter cotton 334 on one side to move inward, so that it forms a clamping state with the adapter cotton 334 on the other side, thereby firmly clamping the plastic core to be cut in the middle position, ensuring that the core will not shake or shift during cutting. After the cutting is completed, the electric push rod 332 drives the adapter cotton 334 to automatically return to its original position, releasing the cut core segment. At the same time, the core to be processed behind continues to move forward under the action of external force, pushing the cut core segment away from the guide position, realizing the automatic material discharge function.

[0030] Sealing cotton 333 is fixedly installed on the side of each of the two adapter cottons 334 that is far apart, and the other side of each of the two sealing cottons 333 is fixedly connected to the inner wall of the fixing frame 331.

[0031] In this embodiment, after the plastic core is guided to the cutting position, the sealing cotton 333 can effectively seal the gap between the core and the fixing frame 331 without interfering with the core's forward and backward movement, thereby reducing the leakage path of sound waves and debris during the cutting process, further suppressing noise transmission, and preventing plastic debris from splashing to the outside of the equipment.

[0032] A funnel frame 335 is fixedly installed on the inner bottom wall of the cutting box 200, and a collection frame 336 is provided at the bottom of the funnel frame 335. The collection frame 336 is slidably connected to the bottom of the cutting box 200.

[0033] In this embodiment, when the plastic core generates debris during the cutting process, the debris will naturally slide down the inclined surface of the funnel frame 335 and fall into the collection frame 336, preventing the debris from scattering and accumulating at the bottom of the cutting box 200 or interfering with the operation of other mechanisms. At the same time, the collection frame 336 adopts a sliding design, which makes it easy for operators to quickly pull it out for cleaning without disassembling the main body of the cutting box 200.

[0034] Working Principle: During use, the operator places the entire plastic core into the noise-reducing guide mechanism 300, where multiple guide wheels 323 provide axial positioning and initial guidance. Under the action of springs 325, the guide wheels 323 remain firmly against the core surface and, in conjunction with sound-absorbing holes 326, absorb structural noise generated by the core cavity during cutting. As the core continues forward, it passes through the sound-insulating cotton 220 and enters the cutting box 200. The electric push rod 332 of the guide assembly 330 drives the adapter cotton 334 to clamp and position the core. Simultaneously, the sealing cotton 333 seals the clamping area, suppressing sound waves and debris leakage. After clamping, the cutting blade inside the cutting box 200, driven by the drive mechanism, runs along the guide rail to precisely cut the core. During cutting, the soundproof glass 210 forms a closed visual zone, providing both sound insulation and safe observation. After the core is cut, the electric push rod 332 resets and releases the clamping force, allowing the cut core to fall off naturally, while the subsequent cores continue to advance, achieving automatic material changing. Plastic debris generated during the cutting process is collected in the collection frame 336 through the funnel frame 335 for easy later cleaning.

[0035] It should be noted that the cutting box and electric push rod mentioned above are all devices with relatively mature existing technology. The specific model can be selected according to actual needs. At the same time, the cutting box and electric push rod can be powered by the built-in power supply or by the mains power. The specific power supply method should be selected according to the situation, which will not be elaborated here.

[0036] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A plastic core cutting device with noise reduction function, characterized in that, include: A processing table (100) is provided, and a cutting box (200) is fixedly installed on one side of the processing table (100). A noise reduction guide mechanism (300) for reducing noise during the cutting of plastic cores is provided on the outside of the cutting box (200); The noise reduction guiding mechanism (300) includes a fixed seat (310) fixedly installed on the outside of the processing table (100), a noise reduction component (320) is provided on the other side of the fixed seat (310), and a guiding component (330) is provided on the outside of the cutting box (200).

2. The plastic core cutting device with noise reduction function according to claim 1, characterized in that, The noise reduction component (320) includes multiple support frames (321) fixedly installed on the surface of the processing table (100). Each of the multiple support frames (321) has two movable frames (322) inside. Each of the two movable frames (322) has a guide wheel (323) rotatably installed inside. The surface of the guide wheel (323) has multiple sound-absorbing holes (326).

3. The plastic core cutting device with noise reduction function according to claim 2, characterized in that, The surface of the guide wheel (323) is set in a V shape, and the two guide wheels (323) are located on the upper and lower sides of the plastic core respectively.

4. The plastic core cutting device with noise reduction function according to claim 2, characterized in that, The movable frame (322) is slidably fitted with a guide frame (324) on its outer side. The other side of the guide frame (324) is fixedly connected to the support frame (321). A spring (325) is fixedly installed inside the guide frame (324). The other end of the spring (325) is pressed against the movable frame (322).

5. The plastic core cutting device with noise reduction function according to claim 1, characterized in that, Soundproof glass (210) is fixedly installed on both sides of the cutting box (200), and two soundproof cotton (220) is fixedly installed on the side of the cutting box (200) near the fixing seat (310).

6. The plastic core cutting device with noise reduction function according to claim 1, characterized in that, The guide assembly (330) includes a fixed frame (331) fixedly installed on one side of the cutting box (200). An electric push rod (332) is fixedly installed on the top of the fixed frame (331). The output end of the electric push rod (332) extends into the interior of the fixed frame (331). Two adapter cottons (334) are provided inside the fixed frame (331). One of the adapter cottons (334) is fixedly connected to the output end of the electric push rod (332).

7. The plastic core cutting device with noise reduction function according to claim 6, characterized in that, Sealing cotton (333) is fixedly installed on the side of each of the two adapter cottons (334) that is far apart, and the other side of each of the two sealing cottons (333) is fixedly connected to the inner wall of the fixing frame (331).

8. The plastic core cutting device with noise reduction function according to claim 1, characterized in that, A funnel frame (335) is fixedly installed on the inner bottom wall of the cutting box (200), and a collection frame (336) is provided at the bottom of the funnel frame (335). The collection frame (336) is slidably connected to the bottom of the cutting box (200).

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