Preparation method of decorative protective strip
Through the closed design and exhaust gas treatment device, combined with cooling and noise reduction structure, the dust pollution and noise problems in the production of decorative guard strips are solved, and an environmentally friendly and efficient production process is achieved, and the production environment of decorative guard strips is improved.
Patent Information
- Application Number
- CN202411641394.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-18
- Publication Date
- 2024-12-27
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In the existing decorative strip production process, PVC resin powder and calcium powder are used as raw materials, resulting in a large amount of dust, causing factory and environmental pollution, and the equipment is noisy, affecting the operating environment.
Using a closed design mixer, granulator and extruder, equipped with exhaust gas treatment device and cooling structure, a preheating and cooling system is set up during the granulation and extrusion process, cooling and heat recovery are used for water circulation pipelines, and Use cutting boxes and noise reduction structures during cutting to collect dust and reduce noise.
It effectively reduces dust and flue gas emissions, reduces pollution, improves production environmental protection effect, improves equipment cooling efficiency and noise isolation, and protects the working environment and the residential environment.
Smart Images
Figure CN119189104A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of decorative guard strip production, in particular to a decorative guard strip preparation method. Background Art
[0002] Decorative guard strips are a type of interior decoration item, which are generally set in a right-angle L-shape. They can effectively prevent corners and edges from being damaged due to collision or friction, thereby extending their service life. At the same time, the guard strips can also play a role in fixing and supporting, such as fixing door frames, to ensure the stability of the structure. As people's requirements for interior decoration increase, the demand for decorative guard strips is also increasing year by year.
[0003] When the existing decorative guard strips are produced, pearl cotton or PVC resin powder and calcium powder are generally used as raw materials, and the decorative guard strip products and processed products are cut, polished, spliced and assembled in the production process.
[0004] However, in the existing production process of decorative guard strips, a large amount of powdered raw materials are needed in the production process of PVC guard strips using PVC resin powder and calcium powder as raw materials. These raw materials are prone to generate a large amount of dust during transportation, unloading and preparation, which not only poses a safety hazard to the working environment of the factory, but also has an adverse impact on the surrounding environment. In view of this, we propose a method for preparing decorative guard strips. Summary of the invention
[0005] The object of the present invention is to provide a method for preparing a decorative guard strip to solve the problems raised in the above background technology.
[0006] To achieve the above object, the present invention provides the following technical solution: a method for preparing a decorative guard strip, comprising the following steps: S1. Mixing material: Put PVC resin, calcium carbonate powder, masterbatch and calcium zinc stabilizer into a mixing mixer in proportion and stir to obtain a mixture; S2, adding auxiliary materials: adding auxiliary material particles according to proportion into the mixer in S1 for secondary mixing and stirring to obtain a secondary mixture, wherein the auxiliary material particles can be one or more of PP particles, ABS particles and TPV particles; S3, granulation: taking the secondary mixture in S2 and adding it into a granulator, and producing the mixture particles through the granulator; S4, extrusion: taking the mixed material particles obtained in S3 and adding them into an extruder, and producing a decorative guard strip material of a corresponding shape through the extruder; S5, cutting: cutting the decorative guard strip material produced by extrusion in S4 according to pre-set production specifications to obtain a decorative guard strip product; S6, quality inspection: The decorative guard strip products produced in S5 are sampled and inspected by batches. Qualified products enter the next process, and unqualified products are separately transferred to the defective product line for further processing; S7. Packing and warehousing: Qualified decorative guard strip products are packed and warehousing in batches.
[0007] Preferably, the internal cavities of the mixing mixer, granulator and extruder used in S1, S3 and S4 are all of closed design, and the tops of the discharge ports of the mixing mixer, granulator and extruder are all provided with waste gas exhaust pipes, and the waste gas exhaust pipes corresponding to the mixer, granulator and extruder are connected to a waste gas treatment device, and the waste gas treatment device includes a flue gas treatment structure and a dust treatment structure, so as to treat the dust emissions and flue gas emissions that may be generated in the production process of the decorative guard strips and then discharge them into the external environment, thereby ensuring the overall environmental protection effect of the decorative guard strip production line and reducing pollution emissions.
[0008] Preferably, a cooling structure is provided on the outside of the discharge port of the extruder, and the cooling structure includes a cooling heat exchange jacket fixedly mounted on the outside of the discharge port of the extruder and a water circulation storage tank connected to the cooling heat exchange jacket through a circulation pipe, and a circulation pump is provided inside the water circulation storage tank, and a water cooling structure is provided inside the water circulation storage tank, so as to realize the circulation cooling in the production process of the decorative guard strip, and a closed water circulation pipeline is adopted, so that the water used for cooling will not be affected by the external environment, thereby ensuring the heat exchange efficiency of the entire cooling structure and avoiding the blockage of the pipeline, and at the same time, the cooling heat exchange jacket is arranged in a spiral shape, and the cooling heat exchange jacket is arranged in a flat shape on the side close to the discharge port of the extruder, so as to increase the heat exchange contact area between the cooling heat exchange jacket and the discharge port of the extruder, thereby improving its cooling and shaping effect on the decorative guard strip products output from the discharge port of the extruder.
[0009] Preferably, a filtering structure is provided on the top of the mixer, and a small amount of pure water is added in batches during stirring in S1. The pure water is filtered by the filtering structure and then put into the mixer, thereby ensuring the relative humidity of the materials inside the mixer during stirring, thereby improving the mixing efficiency between the materials.
[0010] Preferably, the feed port of the extruder is provided with a preheating structure, and the preheating structure includes a heat exchange pipe, and a section of the heat exchange pipe and the circulation pipe close to each other is arranged in a spiral shape, and the heat exchange pipe and the spiral section of the circulation pipe form a double helix structure, and the heat exchange pipe is filled with heat transfer oil, and the two ends of the heat exchange pipe are respectively fixedly connected to the output end and the input end of a small circulation pump, so that the cooling structure can recycle the heat generated by the extruder while cooling and shaping the output product of the extruder, and preheat the mixed material particles at the feed port of the extruder so that it can heat up faster and reach the temperature required for extrusion.
[0011] Preferably, the internal temperature of the extruder is set between 170 and 200°C, and a plurality of temperature intervals are arranged at intervals of 20°C from the feed port to the discharge port in the extruder, and adjacent temperature intervals are arranged in a cross-overlapping manner, so that the mixed material particles entering the extruder can be gradually heated up to avoid denaturation of the material due to rapid heating, and gradually cooled down during the discharge process to avoid cracking due to excessive temperature drop.
[0012] Preferably, the cutting equipment used in S5 includes a cutting structure and an adjustable fixed-length structure, the adjustable fixed-length structure is kept flush with the discharge port of the extruder, and the adjustable fixed-length structure includes a trigger part and an adjusting part, so as to adjust the length of the decorative guard strip product and control the cutting equipment to cut the decorative guard strip product. At the same time, the cutting structure also includes a dust removal component that can recycle the powder waste generated by the cutting of the decorative guard strip, so as to collect the dust impurities and waste generated during the cutting operation of the decorative guard strip to prevent them from being scattered into the air and causing harm to the production environment.
[0013] Preferably, the outer sides of the mixing machine, granulator, extruder and cutting device are all provided with noise reduction structures, and the noise reduction structures corresponding to the mixing machine, granulator and extruder include sound insulation cotton boards mounted on the outer sides of the mixing machine, granulator and extruder, and the number of the sound insulation cotton boards is set to several pieces, and the several sound insulation cotton boards are connected end to end, so as to ensure that the mixing machine, granulator and extruder will not generate loud noise during operation, affecting the surrounding staff and residents in the surrounding environment. At the same time, the noise reduction structure corresponding to the cutting device includes a cutting box arranged on the outer side of the cutting device, and the inner wall of the cutting box is provided with a sound insulation cotton board, so as to isolate the noise generated during the cutting operation without affecting the cutting operation of the device, thereby reducing the impact on the surrounding environment during the production operation.
[0014] Preferably, an auxiliary unloading component is provided at the tail end of the cutting box, and the auxiliary unloading component includes a unloading plate, a sorting structure and an anti-collision structure. The top end of the unloading plate is fixedly installed on the tail end of the cutting box. After the cutting device cuts the decorative guard strip, the decorative guard strip product slides down along the unloading plate. The anti-collision structure is arranged at the bottom end of the unloading plate to provide anti-collision protection for the falling decorative guard strip product to avoid damage. The sorting structure is arranged on the side of the unloading plate to arrange the decorative guard strips that fall in sequence in horizontal rows, which is convenient for the staff to take and package, and also convenient for the inspectors to sample and inspect, thereby improving the production efficiency of the decorative guard strips.
[0015] Compared with the prior art, the present invention provides a method for preparing a decorative guard strip, which has the following beneficial effects: 1. The method for preparing decorative guard strips is characterized in that a waste gas discharge pipe connected to a waste gas treatment device is provided at the discharge port of a mixing mixer, a granulator, an extruder and other structures used in the production process of the decorative guard strips, so that dust emissions and smoke emissions that may be generated in the production process of the decorative guard strips are treated and then discharged into the external environment, thereby ensuring the overall environmental protection effect of the decorative guard strip production line and reducing pollution emissions.
[0016] 2. The method for preparing the decorative guard strip utilizes the heat generated during the operation of the extruder by utilizing a cooling structure and a preheating structure, and utilizes a closed water circulation pipeline so that the water used for cooling will not be affected by the external environment, thereby ensuring the heat exchange efficiency of the entire cooling structure and avoiding blockage of the pipeline. At the same time, while the discharge product of the extruder is cooled and shaped, the heat generated by it can be recycled and utilized, and the mixed material particles are preheated at the feed port of the extruder so that they can heat up faster and reach the temperature required for extrusion.
[0017] 3. The method for preparing decorative guard strips provides a cutting box during the cutting operation of the decorative guard strips, and provides noise reduction structures inside the cutting box and on the outsides of the mixer, granulator, and extruder, thereby ensuring that the mechanical equipment used in the production process of the decorative guard strips does not generate large noise during operation, thereby affecting surrounding workers and residents in the surrounding environment. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the structure of the present invention. DETAILED DESCRIPTION
[0019] like Figure 1 As shown, the present invention provides a technical solution: a method for preparing a decorative guard strip, 1. comprising the following steps: S1. Mixing material: Put PVC resin, calcium carbonate powder, masterbatch and calcium zinc stabilizer into a mixing mixer in proportion and stir to obtain a mixture; S2, adding auxiliary materials: adding auxiliary material particles according to proportion into the mixer in S1 for secondary mixing and stirring to obtain a secondary mixture, wherein the auxiliary material particles can be one or more of PP particles, ABS particles and TPV particles; S3, granulation: taking the secondary mixture in S2 and adding it into a granulator, and producing the mixture particles through the granulator; S4, extrusion: taking the mixed material particles obtained in S3 and adding them into an extruder, and producing a decorative guard strip material of a corresponding shape through the extruder; S5, cutting: cutting the decorative guard strip material produced by extrusion in S4 according to pre-set production specifications to obtain a decorative guard strip product; S6, quality inspection: The decorative guard strip products produced in S5 are sampled and inspected by batches. Qualified products enter the next process, and unqualified products are separately transferred to the defective product line for further processing; S7. Packing and warehousing: Qualified decorative guard strip products are packed and warehousing in batches.
[0020] In one embodiment of the present invention, the internal cavities of the mixing mixer, granulator and extruder used in S1, S3 and S4 are all closed in design, and waste gas exhaust pipes are provided on the tops of the discharge ports of the mixing mixer, granulator and extruder. The waste gas exhaust pipes corresponding to the mixer, granulator and extruder are connected to a waste gas treatment device, and the waste gas treatment device includes a flue gas treatment structure and a dust treatment structure, so as to treat the dust emissions and flue gas emissions that may be generated in the production process of the decorative guard strips and then discharge them into the external environment, thereby ensuring the overall environmental protection effect of the decorative guard strip production line and reducing pollution emissions.
[0021] Furthermore, a cooling structure is provided on the outside of the discharge port of the extruder, and the cooling structure includes a cooling heat exchange jacket fixedly mounted on the outside of the discharge port of the extruder and a water circulation storage tank connected to the cooling heat exchange jacket through a circulation pipe. A circulation pump is provided inside the water circulation storage tank, and a water cooling structure is provided inside the water circulation storage tank, so as to realize the circulation cooling in the production process of the decorative guard strip, and a closed water circulation pipeline is adopted, so that the water used for cooling will not be affected by the external environment, thereby ensuring the heat exchange efficiency of the entire cooling structure and avoiding blockage of the pipeline. At the same time, the cooling heat exchange jacket is arranged in a spiral shape, and the cooling heat exchange jacket is arranged in a flat shape on the side close to the discharge port of the extruder, so as to increase the heat exchange contact area between the cooling heat exchange jacket and the discharge port of the extruder, thereby improving its cooling and shaping effect on the decorative guard strip products produced by the discharge port of the extruder.
[0022] In addition, a filtering structure is provided on the top of the mixer, and a small amount of pure water is added in batches during stirring in S1. The pure water is filtered by the filtering structure and then put into the mixer, thereby ensuring the relative humidity of the materials inside the mixer during stirring, thereby improving the mixing efficiency between the materials.
[0023] In an embodiment of the present invention, a preheating structure is provided at the feed port of the extruder, and the preheating structure includes a heat exchange pipe. A section of the heat exchange pipe and the circulation pipe close to each other is arranged in a spiral shape, and the heat exchange pipe and the spiral section of the circulation pipe form a double helix structure. The heat exchange pipe is filled with heat transfer oil, and the two ends of the heat exchange pipe are respectively fixedly connected to the output end and the input end of a small circulation pump, so that the cooling structure can recycle the heat generated by the extruder while cooling and shaping the output product of the extruder, and preheat the mixed material particles at the feed port of the extruder so that it can heat up faster and reach the required temperature for extrusion.
[0024] In the present invention, the internal temperature of the extruder is set between 170 and 200°C, and a plurality of temperature intervals are arranged at intervals of 20°C from the feed port to the discharge port in the extruder, and adjacent temperature intervals are arranged in a cross-overlapping manner, so that the mixed material particles entering the extruder can be gradually heated up to avoid the material being denatured due to rapid heating, and the temperature is gradually reduced during the discharge process to avoid cracking due to excessive temperature drop.
[0025] Specifically, the cutting device used in S5 includes a cutting structure and an adjustable fixed-length structure, the adjustable fixed-length structure is kept flush with the discharge port of the extruder, and the adjustable fixed-length structure includes a trigger member and an adjusting member, so as to adjust the length of the decorative guard strip product and control the cutting device to cut the decorative guard strip product. At the same time, the cutting structure also includes a dust removal component that can recycle the powder waste generated by the cutting of the decorative guard strip, so as to collect the dust impurities and waste generated during the cutting operation of the decorative guard strip to prevent them from being scattered into the air and causing harm to the production environment. At the same time, the outer sides of the mixer, granulator, extruder and cutting device are all provided with Noise reduction structure, the noise reduction structure corresponding to the mixing machine, granulator and extruder includes a sound insulation cotton board mounted on the outside of the mixing machine, granulator and extruder, and the number of the sound insulation cotton boards is set to a certain number, and the sound insulation cotton boards are connected end to end, so as to ensure that the mixing machine, granulator and extruder will not generate loud noise during operation, affecting the surrounding staff and residents in the surrounding environment. At the same time, the noise reduction structure corresponding to the cutting device includes a cutting box arranged on the outside of the cutting device, and a sound insulation cotton board is arranged on the inner wall of the cutting box, so as to isolate the noise generated during the cutting operation without affecting the cutting operation of the device, thereby reducing the impact on the surrounding environment during the production operation.
[0026] It is worth noting that an auxiliary unloading component is provided at the tail end of the cutting box, and the auxiliary unloading component includes a unloading plate, a sorting structure and an anti-collision structure. The top end of the unloading plate is fixedly installed at the tail end of the cutting box. After the cutting device cuts the decorative guard strip, the decorative guard strip product slides down along the unloading plate. The anti-collision structure is arranged at the bottom end of the unloading plate to protect the falling decorative guard strip product from collision and avoid damage. The sorting structure is arranged on the side of the unloading plate to arrange the decorative guard strips that fall in sequence in horizontal rows, which is convenient for the staff to take the packaging, and also convenient for the inspectors to sample and inspect, thereby improving the production efficiency of the decorative guard strips.
[0027] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.
Claims
1. A method for preparing a decorative guard strip, characterized in that: The following steps are involved: S1. Mixing material: Put PVC resin, calcium carbonate powder, masterbatch and calcium zinc stabilizer into a mixing mixer in proportion and stir to obtain a mixture; S2, adding auxiliary materials: adding auxiliary material particles according to proportion into the mixer in S1 for secondary mixing and stirring to obtain a secondary mixture, wherein the auxiliary material particles can be one or more of PP particles, ABS particles and TPV particles; S3, granulation: taking the secondary mixture in S2 and adding it into a granulator, and producing the mixture particles through the granulator; S4, extrusion: taking the mixed material particles obtained in S3 and adding them into an extruder, and producing a decorative guard strip material of a corresponding shape through the extruder; S5, cutting: cutting the decorative guard strip material produced by extrusion in S4 according to pre-set production specifications to obtain a decorative guard strip product; S6, quality inspection: The decorative guard strip products produced in S5 are sampled and inspected by batches. Qualified products enter the next process, and unqualified products are separately transferred to the defective product line for further processing; S7. Packing and warehousing: Qualified decorative guard strip products are packed and warehousing in batches.
2. A method for preparing a decorative guard strip according to claim 1, characterized in that: The internal cavities of the mixing mixer, granulator and extruder used in S1, S3 and S4 are all of closed design, and the tops of the discharge ports of the mixing mixer, granulator and extruder are all provided with waste gas exhaust pipes, and the waste gas exhaust pipes corresponding to the mixer, granulator and extruder are connected to a waste gas treatment device, and the waste gas treatment device includes a fume treatment structure and a dust treatment structure.
3. A method for preparing a decorative guard strip according to claim 1, characterized in that: A cooling structure is arranged outside the discharge port of the extruder, and the cooling structure includes a cooling heat exchange jacket fixedly installed outside the discharge port of the extruder and a water circulation storage tank connected to the cooling heat exchange jacket through a circulation pipeline, a circulation pump is arranged inside the water circulation storage tank, and a water cooling structure is arranged inside the water circulation storage tank. At the same time, the cooling heat exchange jacket is arranged in a spiral shape, and the cooling heat exchange jacket is arranged in a flat shape on the side close to the discharge port of the extruder.
4. A method for preparing a decorative guard strip according to claim 1, characterized in that: A filtering structure is provided on the top of the mixing and blending machine. A small amount of pure water is added in batches during the stirring in S1. The pure water is filtered by the filtering structure and then put into the mixing and blending machine.
5. A method for preparing a decorative guard strip according to claim 3, characterized in that: The feed port of the extruder is provided with a preheating structure, and the preheating structure includes a heat exchange pipe. A section of the heat exchange pipe and the circulation pipe close to each other is arranged in a spiral shape, and the heat exchange pipe and the spiral section of the circulation pipe form a double helix structure. The heat exchange pipe is filled with heat transfer oil, and the two ends of the heat exchange pipe are respectively fixedly connected to the output end and the input end of a small circulation pump.
6. A method for preparing a decorative guard strip according to claim 1, characterized in that: The internal temperature of the extruder is set between 170 and 200° C., and a plurality of temperature zones are set at intervals of 20° C. from the feed port to the discharge port in the extruder, and adjacent temperature zones are arranged in a cross-overlapping manner.
7. A method for preparing a decorative guard strip according to claim 1, characterized in that: The cutting equipment used in S5 includes a cutting structure and an adjustable fixed-length structure. The adjustable fixed-length structure is kept flush with the discharge port of the extruder, and the adjustable fixed-length structure includes a trigger part and an adjustment part, and controls the cutting equipment to cut the decorative guard strip product. At the same time, the cutting structure also includes a dust removal component that can recycle powder waste generated by cutting the decorative guard strip.
8. A method for preparing a decorative guard strip according to claim 7, characterized in that: The outer sides of the mixing machine, granulator, extruder and cutting device are all provided with noise reduction structures. The noise reduction structures corresponding to the mixing machine, granulator and extruder include sound insulation cotton boards mounted on the outer sides of the mixing machine, granulator and extruder. There are several sound insulation cotton boards, and the several sound insulation cotton boards are connected end to end. At the same time, the noise reduction structure corresponding to the cutting device includes a cutting box arranged on the outer side of the cutting device, and a sound insulation cotton board is arranged on the inner wall of the cutting box.
9. A method for preparing a decorative guard strip according to claim 8, characterized in that: An auxiliary unloading component is provided at the tail end of the cutting box, and the auxiliary unloading component includes a unloading plate, a sorting structure and an anti-collision structure. The top end of the unloading plate is fixedly installed at the tail end of the cutting box, the anti-collision structure is arranged at the bottom end of the unloading plate, and the sorting structure is arranged on the side of the unloading plate, so that the decorative guard strips that fall sequentially are arranged horizontally in rows.