A switch and socket packaging box and manufacturing method thereof

Abstract

The present application discloses a switch and socket packaging box and a manufacturing method thereof. The material components thereof include, by weight: 10-20 parts of short fiber slurry, 25-35 parts of medium fiber slurry, 50-60 parts of long fiber slurry, 3 parts of waterproofing agent and 1 part of oil repellent. The raw materials for manufacturing the switch and socket packaging box are relatively easy to obtain, and materials such as waste cardboard can be recycled and reused. The production process of the switch and socket packaging box and the final product are relatively environmentally friendly and will not cause pollution to the environment. The produced switch and socket packaging box has a smooth and flat appearance, neat size, high structural strength, and good protective performance.

Description

Technical Field

[0001] The present application relates to the technical field of packaging boxes, and in particular to a switch and socket packaging box and a manufacturing method thereof. Background Art

[0002] Switches and sockets are electrical switches and sockets installed on the wall. They are household appliances used to connect and disconnect circuits. Sometimes they can have decorative functions for the sake of beauty.

[0003] The structure of a switch and socket generally consists of two parts: a panel and a base box. Due to the different use environments and working conditions of the panel and the base box, the materials and manufacturing processes used are generally different. The base box is usually embedded in the wall to place wires and fix switches or sockets. Since the base box is the place with the most wire joints, there are higher requirements for the material's resistance to heat, aging and deformation.

[0004] However, the existing switch and socket packaging boxes have the following defects: the common switch and socket packaging boxes on the market are mostly made of PE material, PP material or cardboard packaging. PE plastic is more sensitive to environmental stress (chemical and mechanical effects) and has poor heat aging resistance; PP material has poor environmental resistance, insufficient high temperature rigidity, becomes brittle at low temperature, and is easy to deform; cardboard packaging has low plasticity and a large packaging volume. Summary of the invention

[0005] One purpose of the present application is to provide a switch and socket packaging box with environmentally friendly materials, high structural strength and good protective performance.

[0006] Another object of the present application is to provide a method for manufacturing a switch and socket packaging box, which has an environmentally friendly manufacturing process and can produce a packaging box with a stable and firm structure, a smooth appearance, and relatively uniform size.

[0007] To achieve the above objectives, the technical solution adopted in this application is: a switch socket packaging box and a manufacturing method thereof, wherein the material components comprise by weight: 10-20 parts of short fiber slurry, 25-35 parts of medium fiber slurry, 50-60 parts of long fiber slurry, 3 parts of waterproofing agent and 1 part of oil repellent.

[0008] Furthermore, the length of long fibers in the long fiber slurry is twice the length of short fibers in the short fiber slurry, the short fiber slurry includes whiteboard pulp, the medium fiber slurry includes sugarcane pulp, and the long fiber slurry includes pure wood pulp.

[0009] A method for manufacturing a switch and socket packaging box, comprising the steps of:

[0010] S100 slurrying, mixing the materials to form a slurry with a concentration of 0.8%, stirring for 30 to 40 minutes;

[0011] S200: vacuuming, sucking the slurry into the vacuum mold, and vacuuming the vacuum mold to dehydrate the slurry to form a fiber blank;

[0012] S300: heating, the vacuum mold is kept in a vacuum state, the temperature in the vacuum mold is set to an active temperature for fiber intertwining, and maintained for 35 seconds, so that the moisture content of the fiber blank is not higher than 70%;

[0013] S400 drying and curing, moving the fiber blank from the vacuum mold to a dryer, wherein the dryer quickly dries the fiber blank so that the moisture content of the fiber blank is not higher than 10%;

[0014] S500 hot pressing and shaping, using a hot press machine to hot press the fiber blank, and cooling it to room temperature after the hot pressing is completed.

[0015] According to an embodiment of the present invention, step S200 includes the following steps:

[0016] S210 ultrasonically treat the slurry during the process of the slurry being sucked into the vacuum mold;

[0017] S220 Add sterilizing agent to the slurry during ultrasonic treatment.

[0018] According to an embodiment of the present invention, step S400 includes the following steps:

[0019] S410: surface atomization, spraying atomized water on the surface of the fiber blank after drying, so that the moisture content of the surface of the fiber blank is increased to 20%.

[0020] According to an embodiment of the present invention, step S500 includes the following steps:

[0021] S510 one-time hot pressing, set the temperature to 150℃, last for 5s;

[0022] S520 secondary hot pressing, set the temperature to 120℃, last for 4s;

[0023] S530 heat pressing three times, setting the temperature to 100℃ and lasting for 3s.

[0024] According to an embodiment of the present invention, during the stirring process of step S100, the slurry temperature is maintained at 20°C.

[0025] According to an embodiment of the present invention, during the vacuuming process of step S200 , the vacuum degree of the vacuum mold is maintained at 60 to 70 kPa.

[0026] According to an embodiment of the present invention, during the drying process of step S400, a plurality of spiral air ducts are provided in the dryer, the spiral air ducts are directed toward the fiber blank, and the drying time is 10 minutes.

[0027] According to an embodiment of the present invention, the active temperature is 20°C to 30°C.

[0028] Compared with the prior art, the beneficial effects of this application are:

[0029] 1. The packaging box improves its structural strength by intertwining fiber materials of different lengths. The fiber material is paper fiber, which is more environmentally friendly and easy to recycle than plastic packaging. In addition, compared with cardboard packaging, the packaging box has stronger plasticity and can achieve the same or even higher strength as cardboard packaging with a lighter and thinner structure, which can better protect switches and sockets. At the same time, it can also reduce the packaging volume to save space, thereby reducing transportation costs;

[0030] 2. Using a vacuum mold for dehydration and shaping can automatically intertwine and stabilize the fiber material structure of the packaging box while dehydrating the slurry, thereby achieving automatic shaping after dehydration, reducing processing steps and processing time, and also improving the strength of the combined fiber blank;

[0031] 3. The three-time hot pressing process can improve the smoothness of the packaging box surface, thereby improving the texture of the packaging box, avoiding scratches on the surface of the switch socket caused by the packaging box, and can also stabilize the size of the packaging box and ensure the stability of the packaging box in wrapping and supporting the switch socket. DETAILED DESCRIPTION

[0032] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0033] In the description of the present application, it should be noted that directional words such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions and positional relationships are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be understood as limiting the specific scope of protection of the present application.

[0034] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0035] The terms "including" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0036] The following is a further description of this application:

[0037] The switch and socket packaging box of the present application comprises, by weight, 10-20 parts of short fiber slurry, 25-35 parts of medium fiber slurry, 50-60 parts of long fiber slurry, 3 parts of waterproofing agent and 1 part of oil-proofing agent; the short fiber slurry is preferably made of whiteboard pulp, the medium fiber slurry is preferably made of sugarcane pulp, and the long fiber slurry is preferably made of pure wood pulp.

[0038] Short fibers, medium fibers, and long fibers refer to the relative lengths of fibers. The length of long fibers in long fiber slurry is twice that of short fibers in short fiber slurry. The length of medium fibers is between that of short fibers and that of long fibers. The strength of long fibers is higher than that of short fibers and medium fibers, but the structure formed entirely by long fibers has more voids, and the structural density is low when interwoven, and its strength cannot be guaranteed. By increasing the number of short fibers and medium fibers, the medium fibers can provide a higher strength combined structure, so that the packaging box has a stronger buffering protection capability to protect switches and sockets.

[0039] A method for manufacturing a switch and socket packaging box, comprising the steps of:

[0040] S100 slurrying, mixing the materials to form a slurry with a concentration of 0.8%, stirring for 30 to 40 minutes;

[0041] S200 vacuumizes the slurry into the vacuum mold, and vacuumizes the vacuum mold to dehydrate the slurry to form a fiber blank;

[0042] S300 heating, the vacuum mold is kept in a vacuum state, the temperature in the vacuum mold is set to the active temperature of fiber intertwining, and maintained for 35 seconds, so that the moisture content of the fiber blank is not higher than 70%;

[0043] S400 drying and curing, moving the fiber blank from the vacuum mold to the dryer, where the fiber blank is quickly dried to make the moisture content of the fiber blank no higher than 10%;

[0044] S500 hot pressing and shaping, using a hot press to hot press the fiber blank, and cooling it to room temperature after hot pressing.

[0045] By adopting the vacuum dehydration shaping process and the hot pressing shaping process, the production efficiency can be improved while the quality of the packaging box can be improved, and the problems of rough appearance and large dimensional tolerance of the packaging box can be solved. The use of a vacuum mold for dehydration and shaping can automatically intertwine and stabilize the fiber material structure of the packaging box while dehydrating the slurry, thereby achieving automatic shaping after dehydration, reducing processing steps, reducing processing time, and improving the strength of the combined fiber blank; the use of three hot pressing processes can improve the smoothness of the appearance of the packaging box, thereby improving the texture of the packaging box, avoiding scratches and damage to the appearance of the switch socket by the packaging box, and stabilizing the size of the packaging box to ensure the stability of the packaging box in wrapping and supporting the switch socket.

[0046] Wherein, step S200 includes the steps of:

[0047] S210 Ultrasonic treatment of slurry during the process of slurry sucking into vacuum mold;

[0048] S220 Add sterilizing agent to the slurry during ultrasonic treatment.

[0049] Ultrasonic treatment during the slurry suction process can arrange the limiters of different lengths evenly and orderly, allowing short fibers and medium fibers to enter the gaps in the structure formed by the combination of long fibers, reducing the difficulty of subsequent vacuum shaping. The use of sterilizers during ultrasonic treatment can ensure that the sterilizers are evenly and effectively dispersed in the slurry, sterilize the slurry, and improve the safety of the produced packaging boxes.

[0050] Wherein, step S400 includes the steps of:

[0051] S410: surface atomization, spraying atomized water on the surface of the fiber blank after drying, so that the moisture content of the surface of the fiber blank is increased to 20%.

[0052] By spraying atomized water, the moisture content on the surface of the fiber blank can be increased, the surface of the fiber blank can be softened, and the fiber blank can become smoother during hot pressing, thereby improving the aesthetics of the packaging box. It can also reserve water loss during hot pressing to prevent the surface of the fiber blank from being charred or even broken due to excessive water loss during hot pressing. It can also stabilize the thermal shrinkage of the fiber blank and improve the yield rate.

[0053] Wherein, step S500 includes the steps of:

[0054] S510 one-time hot pressing, set the temperature to 150℃, last for 5s;

[0055] S520 secondary hot pressing, set the temperature to 120℃, last for 4s;

[0056] S530 heat pressing three times, setting the temperature to 100℃ and lasting for 3s.

[0057] Three hot pressings at different temperatures are used to make the surface of the fiber blank flatter and smoother, the size more uniform and stable, and reduce product tolerance. During the first hot pressing, the moisture content in the fiber blank is higher, so a higher temperature is required, and then the temperature is gradually lowered to stabilize the fiber blank through hot pressing shrinkage.

[0058] During the stirring process of step S100, the slurry temperature needs to be maintained at 20°C. Too high or too low a temperature may cause the activity of the fibers to decrease, resulting in structural solidification, affecting the stirring efficiency and enabling the various raw materials to be fully and evenly mixed.

[0059] In the vacuuming process of step S200, the vacuum degree of the vacuum mold is maintained at 60 to 70 kPa. The adopted vacuum degree is relatively low, which reduces the requirements for equipment, prolongs the service life of the mold, and reduces production costs.

[0060] Among them, in the drying process of step S400, there are multiple spiral air ducts in the dryer, and the spiral air ducts are directed toward the fiber blank. The drying time is 10 minutes, and the fiber blank is quickly dried by simulating natural wind. The spiral air ducts can dry the fiber blank at different angles and wind vortex states, and the drying speed of the fiber blank is increased by disrupting the wind direction, thereby increasing the production speed and evenly reducing the moisture content of the fiber blank, thereby obtaining the best hot pressing state, ensuring stable shrinkage during hot pressing, and reducing production tolerances.

[0061] Among them, the active temperature is 20℃ to 30℃. Since the longer the fiber, the higher the hardness, it is difficult to entangle, and short fibers are easily destroyed at higher temperatures. Therefore, the active temperature needs to be set according to the ratio of long fibers and short fibers to ensure that fibers of different lengths can be entangled and combined most efficiently without being destroyed, thereby forming their structure.

[0062] Example 1

[0063] The manufacturing method of the switch and socket packaging box is as follows:

[0064] 1. Prepare 10 parts by weight of whiteboard pulp, 26 parts by weight of sugarcane pulp, 60 parts by weight of pure wood pulp, 3 parts by weight of carbon six waterproofing agent and 1 part by weight of fluorine oil-proofing agent, mix to form a slurry with a concentration of 0.8%, keep the temperature at 20°C, and stir for 35 minutes;

[0065] 2. The slurry is sucked into the vacuum mold. After the slurry is quantitatively sucked, the vacuum valve of the vacuum mold is opened to evacuate the mold. The vacuum degree is 60 kPa until the slurry is dehydrated to form a fiber blank.

[0066] 3. The vacuum mold is kept in a vacuum state, and the temperature inside the vacuum mold is set at 30°C for 35 seconds to reduce the moisture content of the fiber blank to 70%;

[0067] 4. Move the fiber blank into the dryer, and dry the fiber blank in the dryer to reduce its moisture content to 10%;

[0068] 5. Hot pressing, and then waiting to cool to room temperature. The resulting packaging box structure has high tensile strength and can be used as outer packaging.

[0069] Example 2

[0070] The manufacturing method of the switch and socket packaging box is as follows:

[0071] 1. Prepare 20 parts by weight of whiteboard pulp, 26 parts by weight of sugarcane pulp, 50 parts by weight of pure wood pulp, 3 parts by weight of carbon six waterproofing agent and 1 part by weight of fluorine oil-proofing agent, mix to form a slurry with a concentration of 0.8%, keep the temperature at 20°C, and stir for 35 minutes;

[0072] 2. The slurry is sucked into the vacuum mold. After the slurry is quantitatively sucked, the vacuum valve of the vacuum mold is opened to evacuate the mold. The vacuum degree is 60 kPa until the slurry is dehydrated to form a fiber blank.

[0073] 3. The vacuum mold is kept in a vacuum state, and the temperature inside the vacuum mold is set at 20°C for 35 seconds to reduce the moisture content of the fiber blank to 70%;

[0074] 4. Move the fiber blank into the dryer, and dry the fiber blank in the dryer to reduce its moisture content to 10%;

[0075] 5. Hot pressing, and then waiting to cool to room temperature. The formed packaging box structure has a certain toughness and strong protective buffering ability, and can be used as product wrapping packaging.

[0076] Example 3

[0077] The manufacturing method of the switch and socket packaging box is as follows:

[0078] 1. Prepare 15 parts by weight of whiteboard pulp, 25 parts by weight of sugarcane pulp, 56 parts by weight of pure wood pulp, 3 parts by weight of carbon six waterproofing agent and 1 part by weight of fluorine oil-proofing agent, mix to form a slurry with a concentration of 0.8%, keep the temperature at 20°C, and stir for 35 minutes;

[0079] 2. The slurry is sucked into the vacuum mold. After the slurry is quantitatively sucked, the vacuum valve of the vacuum mold is opened to evacuate the mold. The vacuum degree is 60 kPa until the slurry is dehydrated to form a fiber blank.

[0080] 3. The vacuum mold is kept in a vacuum state, and the temperature inside the vacuum mold is set at 25°C for 35 seconds to reduce the moisture content of the fiber blank to 70%;

[0081] 4. Move the fiber blank into the dryer, and dry the fiber blank in the dryer to reduce its moisture content to 10%;

[0082] 5. Hot pressing, and then waiting for cooling to room temperature. The resulting packaging box has both toughness and tensile strength and is highly practical.

[0083] Example 4

[0084] The manufacturing method of the switch and socket packaging box is the same as that of Example 3, except that the following steps are added to step 2:

[0085] 2.1 While sucking the slurry, use ultrasonic equipment to ultrasonically treat the slurry entering the vacuum mold. The ultrasonic power is 1KW and the ultrasonic treatment time is 15s;

[0086] 2.2 During the ultrasonic treatment, a sterilizing agent is added to the slurry, and the sterilizing agent is a hydrogen peroxide silver ion disinfectant.

[0087] Ultrasonic treatment can make the various limiters contained in the slurry enter the vacuum mold in a uniform and orderly arrangement, which is convenient for subsequent fiber entanglement and improves product quality. At the same time, it can allow the sterilizer to be quickly mixed into the slurry to inhibit infection during the packaging box production process.

[0088] Example 5

[0089] The manufacturing method of the switch and socket packaging box is the same as that of Example 3, except that the following steps are added to step 4:

[0090] 3.1 Spray atomized water on the surface of the fiber blank to increase the moisture content on the surface of the fiber blank to 20%.

[0091] It can increase the moisture content on the surface of the fiber blank, soften the surface of the fiber blank, make the fiber blank smoother during hot pressing, improve the appearance of the packaging box, reserve water loss during hot pressing, avoid the surface of the fiber blank from charring or even breaking due to excessive water loss during hot pressing, and stabilize the thermal shrinkage of the fiber blank to improve the yield rate.

[0092] Example 6

[0093] The manufacturing method of the switch and socket packaging box is the same as that of Example 3, except that the following steps are added in step 5:

[0094] 5.1 Heat press once, set the temperature to 150℃, and last for 5s;

[0095] 5.2 Secondary hot pressing, set the temperature to 120℃, last for 4s, the overall shrinkage of the packaging box is 0.5mm;

[0096] 5.3 Heat pressing three times, set the temperature to 100℃, last for 3s, and the overall packaging box shrinks by 0.3mm.

[0097] Using three heat pressings at different temperatures, the first heat pressing reduces the moisture content on the surface of the packaging box and smoothes its surface. The second heat pressing can shrink the packaging box and reduce its overall size by 0.5mm. The third heat pressing can shrink the packaging box again and reduce its overall size by 0.3mm. Through the above operations, the surface of the fiber blank is flatter and smoother, the size is more uniform and stable, and the product tolerance is reduced. During the first heat pressing, the moisture content in the fiber blank is higher, so a higher temperature is required, and then the temperature is gradually lowered to heat-press and shrink the fiber blank to stabilize it. If only one hot pressing is performed and the temperature is set at 100°C, the hot pressing will take longer, which will damage the fiber and affect the structural strength of the packaging box.

[0098] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and the specification only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.

Claims

1. A method for manufacturing a switch and socket packaging box, characterized in that: The material components of the switch and socket packaging box include, by weight: 10-20 parts of short fiber slurry, 25-35 parts of medium fiber slurry, 50-60 parts of long fiber slurry, 3 parts of waterproofing agent and 1 part of oil repellent. The specific manufacturing steps are as follows: S100 slurrying: mix the materials to form a slurry with a concentration of 0.8% and stir for 30 to 40 minutes; S200: vacuuming, sucking the slurry into the vacuum mold, and vacuuming the vacuum mold to dehydrate the slurry to form a fiber blank; S300: heating, the vacuum mold is kept in a vacuum state, the temperature in the vacuum mold is set to an active temperature for fiber intertwining, and maintained for 35 seconds, so that the moisture content of the fiber blank is not higher than 70%; S400 drying and curing, moving the fiber blank from the vacuum mold to a dryer, wherein the dryer quickly dries the fiber blank so that the moisture content of the fiber blank is no more than 10%; S500 hot pressing and shaping, using a hot press machine to hot press the fiber blank, and cooling it to room temperature after hot pressing; The step S500 includes: S510 one-time hot pressing, set the temperature to 150℃, last for 5s; S520 secondary hot pressing, set the temperature to 120℃, last for 4s; S530 heat pressing three times, setting the temperature to 100℃ and lasting for 3s.

2. The method for manufacturing a switch and socket packaging box according to claim 1, characterized in that: The step S200 comprises the steps of: S210 ultrasonically treat the slurry during the process of the slurry being sucked into the vacuum mold; S220 Add sterilizing agent to the slurry during ultrasonic treatment.

3. The method for manufacturing a switch and socket packaging box according to claim 2, characterized in that: The step S400 includes the following steps: S410: surface atomization, spraying atomized water on the surface of the fiber blank after drying, so that the moisture content of the surface of the fiber blank is increased to 20%.

4. The method for manufacturing a switch and socket packaging box according to claim 3, characterized in that: During the stirring process of step S100, the slurry temperature is maintained at 20°C.

5. The method for manufacturing a switch and socket packaging box according to claim 4, characterized in that: During the vacuuming process of step S200 , the vacuum degree of the vacuum mold is maintained at 60 to 70 kPa.

6. The method for manufacturing a switch and socket packaging box according to claim 5, characterized in that: During the drying process of step S400, a plurality of spiral air ducts are provided in the dryer, and the spiral air ducts face the fiber blank, and the drying time is 10 minutes.

7. The method for manufacturing a switch and socket packaging box according to claim 6, characterized in that: The active temperature is 20℃ to 30℃.

8. The method for manufacturing a switch and socket packaging box according to claim 1, characterized in that: The length of long fibers in the long fiber slurry is twice the length of short fibers in the short fiber slurry, the short fiber slurry includes whiteboard pulp, the medium fiber slurry includes sugarcane pulp, and the long fiber slurry includes pure wood pulp.