TWM573691U - Stress relieving device in the manufacturing process of molded products - Google Patents

Abstract

A stress relieving device in a manufacturing process of a molded product, comprising: a conveyor that can carry the molded product in advance; and a spray humidification zone for the conveyor to transport the molded product into the spray, A spray head is disposed inside the wet zone, and the spray head is connected with a water supply pipe to spray and humidify the molded product entering the interior of the spray humidification zone; a heating zone for the conveyor to be transported previously through the spray The inside of the leaching humidification zone is subjected to a humidification treatment molding product, and a heater is disposed inside the heating zone to heat and dry the molded product entering the heating zone, and an exhaust fan is simultaneously disposed inside the heating zone Extracting moisture and moisture from the heating zone; and a cooling zone for the conveyor to transport the molded product previously subjected to the heat drying treatment through the heating zone to perform natural in the cooling zone Cooling; this creation mainly sends the molded product directly through the stress relief device during the manufacturing process of the molded product, so that the stress relieving operation can be completed quickly.

Description

Stress relief device in the manufacturing process of molded products

The present invention relates to a stress relieving device in the manufacturing process of a molded product, and more particularly to a stress relieving device which can quickly complete the stress relieving operation of the molded product in the manufacturing process of the molded product.

According to the "plastic products" made of plastic materials, it is easy to release toxins that cause serious pollution to the environment, difficult to recycle and reuse, or difficult to recycle and recycle, and the cost of recycling is so large, etc. It has caused serious harm to global environmental protection. In today's era of high environmental awareness, the search for non-toxic, easy-to-recycle materials has become the mainstream of research and practical applications. At present, it has been developed to use a pulp fiber material and/or a plant fiber material as a slurry material, and the slurry is adhered by a suction mold, and then the product is manufactured by hot pressing and setting technology, and is a "plastic product". The distinction is generally referred to as "molded products" (also known as "paper-plastic products"). Molded products have the advantages of easy recycling, re-manufacture and reuse, and are in line with the trend of environmental protection and energy conservation and carbon reduction. Therefore, they are quickly accepted by the business community and the general public, and molded products are often seen, for example, bowls, plates, Cup lids, packaging materials, shock absorbers, mats, etc. - and other products are gradually adopted, and even various products have tried to manufacture in the form of molded products.

The manufacture of molded products is generally referred to collectively as "molding product manufacturing method" or "molding product manufacturing process". Regarding the outline of the manufacturing process of the molded product, as shown in Fig. 1, it is necessary to first perform the two processes of "slurry molding" and "hot pressing" to produce a molded product, wherein the "sucking plastic" In a simple manner, the operation is carried out by a suction mold falling into a slurry tank filled with slurry, and then a suction device vacuum suctions the slurry in the slurry tank through the suction mold to make the suction The mold surface is formed into a "bulk layer". When the suction mold adsorbs the blank layer and rises away from the pulp box, the blank layer is gradually dehumidified by continuous suction, and then the suction mold is combined with the embryo. The material layer is displaced to form a blank layer by a cold pressing die, so that the slurry layer is reduced in humidity and simultaneously shaped into an "initial embryo", and then the suction mold adsorbs the original embryo and leaves the cold. The stamper, that is, the operation of "sucking and shaping" is completed, and then the "hot pressing" operation is performed, which is performed by a hot pressing die for hot-pressing the original preform after the suction molding. The original embryo is dried and shaped into a molded product because it is in the process of "slurry molding" and "hot pressing". The contact work is carried out, so the internal stress of the molded product after drying and setting will be cohesive. Therefore, the molded product must be subjected to a "stress relief" operation to eliminate the cohesive stress of the molded product, and then finally The molded product is subjected to end treatment, and is generally finished as a finished product of the molded product after selective operation of trimming (removing flash), inspection (checking quality is acceptable), and packaging (for profit). .

As shown in Fig. 1, it is conventionally known that the "stress relief" operation of the molded product after hot pressing is carried out in a static manner, also referred to as aging treatment, which is simply a hot pressing type. After completion, the molded product is moved to a stationary area with a large site area, allowing it to stand at room temperature or under natural conditions for 24 hours. The rest time can be adjusted according to the size of the molded product. In order to be fixed and immutable, after a period of standing (ie, after aging treatment), the cohesive stress existing in the molded product will naturally gradually disappear to none.

The creator specializes in the R&D and manufacturing of manufacturing equipment, manufacturing processes and finished product development of various molded products. Through the experience of long-term contact with various equipments of molded products, it is recognized that the above-mentioned conventional manufacturing process is statically set ( The immediate effect processing method for stress relief operation actually has the following defects: 1. In order to eliminate stress during the manufacturing process, the molded product after the hot pressing is completed is moved to a stationary zone. It is allowed to stand for a period of time (tens of hours), but this will cause subsequent operations to be hindered and delay the production schedule. In the highly industrialized era when time is money, the most direct deficiency is to affect production, increase manufacturing costs and reduce competitiveness. 2. In order to eliminate the stress in the manufacturing process, the molded product after the hot pressing is completed in the process is moved to a stationary zone for a period of time (tens of hours), and then allowed to stand. After the completion, the molded product must be moved back to the process to continue the subsequent operation, but this will result in an increase in manpower and cost, as well as a need to have a spacious site area to serve as a stationary area, which will increase the overall cost and adversely affect product competitiveness. . 3. In order to eliminate the stress in the manufacturing process, the molded product after the hot pressing is completed is moved to a stationary zone for a period of time (tens of hours), and some quality requirements are high. The molded product (for example, a molded product that requires a sterile and dust-free molding), so simply placed in the stationary zone for standing, is difficult to meet the requirements of high quality. 4. It is known that the molded product is treated by a static method in the manufacturing process, and the surface flatness is relatively poor, thereby affecting the product quality.

In response to the above shortcomings, the creator has intensively conceived R&D and improvement, and provided a stress relieving device that was not conceived and adopted in the manufacturing process of the molded product to solve the above-mentioned shortcomings.

The reason is that the main purpose of this creation is to provide a stress relief device that can greatly shorten the stress relief operation time, reduce the spacious floor area of the stationary area, reduce the manpower of moving, and improve the quality of the molded product. .

In order to achieve the above object, the present invention appeals to a stress relieving device in a manufacturing process of a molded product, in which a molded product is produced by a two-stage process of suction molding and hot pressing, and the stress is eliminated. The device has: a conveyor, the conveying surface of the conveyor is made into a mesh shape, the conveyor can transport the molded product in sequence; a spray humidification zone for the conveyor to transport the molded product into, A spray head is disposed inside the spray humidification zone, and the spray head is connected with a water supply pipeline to spray and humidify the molded product entering the interior of the spray humidification zone; a heating zone for the conveyor to transport the previous The molded product subjected to humidification treatment is entered through the spray humidification zone, and a heater is disposed inside the heating zone, and the molded product entering the heating zone can be heated and dried, and the heating zone is simultaneously set inside. a suction fan for extracting moisture and moisture from the heating zone; and a cooling zone for the conveyor to transport the molded product previously heated and dried by the heating zone Into the natural cooling in the cooling zone.

In the stress relieving device in the manufacturing process of the above-mentioned molded product, the nozzle is arranged in two columns, which are respectively disposed above and below the conveyor, and are arranged from above and below to the conveyor passing through the spray humidifying zone. The molded product on the conveying surface is subjected to spray humidification treatment.

In the above-mentioned stress relieving device in the manufacturing process of the molded product, the nozzle is ejected as a misty liquid, and is sprayed at a wide angle so that the surfaces of the molded product passing through are uniformly humidified.

In the stress relieving device in the manufacturing process of the above-mentioned molded product, the heater is disposed under the conveyor, and is heated and dried by the molded product traveling upward, and the exhaust fan is disposed above the heating zone. The moisture and moisture in the heating zone are extracted and discharged, so that the molded product is quickly dried.

In order to achieve the above objectives, the technical means adopted by the author and the practical improvement effect can be achieved. The following preferred embodiments are described in detail with reference to the drawings, and the profit is fully understood.

The "stress-relieving device in the manufacturing process of a molded product" claimed by the present invention is a device used for stress-relieving work in the manufacturing process of a molded product. As shown in FIGS. 2 to 4, when the molded product 10 is produced by the two processes of "slurry molding" and "hot pressing" in the manufacturing process of the molded product, the molded product 10 is carried out. In the stress relieving operation, the molded product 10 is sequentially placed on the conveying surface of a conveyor 20 by a human or a mechanical arm, and the conveying surface is formed into a mesh shape, that is, the conveyor 20 is used to transport the product. The molded product 10 is sequentially advanced. When the conveying surface of the conveyor 20 drives the molded product 10 to travel, it sequentially passes through a spray humidification zone 30, a heating zone 40 and a cooling zone 50, and finally The cooling zone 50 is taken out, in other words, the spray humidification zone 30, the heating zone 40 and the cooling zone 50 are arranged adjacent to each other, and the front and the back of the three zones are connected to the inlet, the outlet and the adjacent port. A flexible shielding sheet is disposed to ensure that each section is shielded and isolated as much as possible. The spray humidifying zone 30 is provided with a plurality of nozzles 31 (shown in FIG. 3). The nozzles 31 are arranged in two columns, respectively. Provided above and below the conveyor 20, the nozzles 31 are connected to a water supply pipe from above and Spraying and humidifying the lower side of the molded product 10 on the conveying surface of the conveyor 20 passing through the spray humidifying zone 30, the spray head 31 is ejected into a very fine misty liquid, and is sprayed at a wide angle. In order to uniformly humidify the surfaces of the molded product 10 passing through, the length of the spray humidification zone 30 and the strength and total liquid amount of the sprayed liquid of the spray head 31 are actuated to obtain The molded product 10 is subjected to uniform and appropriate humidification.

After the molded product 10 is uniformly and appropriately humidified by the inside of the spray humidification zone 30, it is then driven into the heating zone 40. The heating zone 40 is internally provided with a plurality of heaters 41 (shown in FIG. 3). The heater 41 is disposed under the conveyor 20, and is heated and dried by the molded product 10 traveling upwards. An exhaust fan 42 is disposed above the heating zone 40 (shown in FIGS. 3 and 4). When the heater 41 heats and dries the previously humidified molded product 10, the moisture and moisture in the heating zone 40 rise rapidly, so that the exhaust fan 42 is activated while heating and drying. The moisture and moisture in the heating zone 40 are extracted and discharged to achieve rapid drying of the molded product 10. The length of the heater 41 and the heat and total heat of the heater 41 are actuated. It is desirable that the molded product 10 has its humidity lowered to a desired value as it leaves the heating zone 40.

After the molded product 10 is heated and dried by the inside of the heating zone 40, it is then driven into the cooling zone 50, and travels through the cooling zone 50 according to the traveling speed of the conveyor 20 for natural cooling. When the molded product 10 is driven away from the cooling zone 50, the stress relieving operation of the molded product 10 is completed. The conveyor 20 then drives the molded product 10 to continue. When approaching the end of the conveyor 20, the molded product 10 is again taken away from the conveyor 20 by a human or mechanical arm and sent to the end. The processing work is performed at the end to complete the finished product of the molded product.

According to the above description, the present invention mainly appeals to a stress relieving device in a manufacturing process of a molded product, which is subjected to two processes of suction molding and hot pressing to produce a molded product. The stress relieving device has: a conveyor 20, the conveying surface of the conveyor 20 is made into a mesh shape, the conveyor 20 can transport the molded product 10 in sequence; a spray humidification zone 30 for the conveyor 20 The molded product 10 is transported, and a spray head 31 is disposed inside the spray humidification zone 30. The spray head 31 is connected to a water supply pipe to spray the molded product 10 entering the spray humidification zone 30. Humidification treatment; a heating zone 40 for the conveyor 20 to transport the molded product 10 previously subjected to humidification treatment through the interior of the spray humidification zone 30, the heater zone 40 is internally provided with a heater 41, which can be accessed The molded product 10 in the heating zone 40 is subjected to a heat drying process. The inside of the heating zone 40 is simultaneously provided with a blower 42 for extracting moisture and moisture from the heating zone 40, and a cooling zone 50 for supplying The conveyor 20 carries the previous Through the inner heating zone 40 by the heating and drying process of the molded product 10 enters, to natural cooling in the cooling zone 50.

According to the above description, the stress relieving device adopted in the manufacturing process of the molded product is compared with the conventional method of using the stationary zone to adopt the static setting method, and the creation has the following excellent effects: 1. The creation will After the hot-pressed finished molded product is sent to the spray humidification zone, the heating zone and the cooling zone via the conveyor, the stress relief operation is completed, because the conveyor, the spray humidification zone, the heating zone and the cooling are completed. The stress relieving device composed of the zone is arranged in a long strip shape, so that it can be arranged as one part of the production line of the whole molded product manufacturing process, so that the molded product after the hot press finishing can directly perform the stress relieving operation and the stress Once the finishing work is completed, the end processing can be performed immediately, thus ensuring uninterrupted production to increase production, reduce manufacturing costs and increase competitiveness. 2. The creation does not need to be moved for the stress relief work, but the molded product after the hot press finishing is moved and removed, the manpower and working hours of the moving can be completely reduced, and the molded product can be dispensed with for the static molding. However, it is necessary to have a large space to serve as a resting area, and to avoid the smear of moving the molded product to and from the moving product to improve the quality. 3. The present invention passes the hot-pressed finished molded product through the stress relieving device, and performs a non-contact humidification, drying and natural drying step, in addition to eliminating the stress of the molded product. In addition, the surface of the molded product can be made flatter, and the flatness can be reduced from the conventional 1 mm to 0.5 mm to 0.3 mm or less, thereby improving the quality.

In summary, this creation does have absolute novelty and practical advancement. Therefore, it is legally required to apply for a patent, and we are requested to grant the patent as soon as possible after the examination.

10‧‧‧Molded products

20‧‧‧Conveyor

30‧‧‧Spray humidification zone

31‧‧‧ sprinkler

40‧‧‧heating area

41‧‧‧heater

42‧‧‧Exhaust fan

50‧‧‧Cooling area

Figure 1 shows a schematic block diagram of the manufacturing process of a molded product. Fig. 2 is a block diagram showing the stress relief operation in the manufacturing process of the molded product of the present embodiment. Fig. 3 is a front elevational view showing the stress relieving device in the manufacturing process of the molded product of the present embodiment. Fig. 4 is a perspective view showing the stress relieving device in the manufacturing process of the molded product of the present embodiment.

Claims (4)

A stress relieving device in a manufacturing process of a molded product, wherein a molded product is produced by a two-stage operation of suction molding and hot pressing in the manufacturing process of the molded product, the stress relieving device having: a conveyor, The conveying surface of the conveyor is made into a mesh shape, and the conveyor can carry the molded product in advance; a spray humidification zone for the conveyor to transport the molded product, and the spray humidification zone is provided with a inside a spray head connected to a water supply pipeline for spraying and humidifying the molded product entering the interior of the spray humidification zone; a heating zone for transporting the conveyor through the interior of the spray humidification zone The molded product subjected to humidification treatment enters, and a heater is disposed inside the heating zone to heat-dry the molded product entering the heating zone, and an exhaust fan is disposed inside the heating zone at the same time, and the heating can be performed Moisture and moisture extraction and discharge in the area; and a cooling zone for the conveyor to transport the molded product previously subjected to the heat drying treatment through the heating zone to perform natural in the cooling zone cool down. The stress relieving device in the manufacturing process of the molded product according to claim 2, wherein the nozzle is arranged in two columns, which are respectively disposed above and below the conveyor to pass the spray from above and below. The molded product on the conveying surface of the conveyor of the humidifying zone is subjected to spray humidification treatment. The stress relieving device in the manufacturing process of the molded product according to claim 2, wherein the nozzle is ejected as a misty liquid, and is sprayed at a wide angle so that the surfaces of the molded product passing through are uniformly added. wet. The stress relieving device in the manufacturing process of the molded product according to claim 2, wherein the heater is disposed under the conveyor, and is heated and dried by the molded product traveling upward, the exhaust fan being disposed at The inside of the heating zone is above the water to remove the moisture and moisture in the heating zone, so that the molded product is quickly dried.