CN113829631B - Medical headrest preparation process and equipment thereof - Google Patents
Medical headrest preparation process and equipment thereof Download PDFInfo
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- CN113829631B CN113829631B CN202111124923.4A CN202111124923A CN113829631B CN 113829631 B CN113829631 B CN 113829631B CN 202111124923 A CN202111124923 A CN 202111124923A CN 113829631 B CN113829631 B CN 113829631B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
- B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C37/0025—Applying surface layers, e.g. coatings, decorative layers, printed layers, to articles during shaping, e.g. in-mould printing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C37/006—Degassing moulding material or draining off gas during moulding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/52—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive
- B29C65/522—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive by spraying, e.g. by flame spraying
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
- B29C65/7858—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined
- B29C65/7861—In-line machines, i.e. feeding, joining and discharging are in one production line
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/45—Joining of substantially the whole surface of the articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/836—Moving relative to and tangentially to the parts to be joined, e.g. transversely to the displacement of the parts to be joined, e.g. using a X-Y table
- B29C66/8362—Rollers, cylinders or drums moving relative to and tangentially to the parts to be joined
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
- B29C69/001—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore a shaping technique combined with cutting, e.g. in parts or slices combined with rearranging and joining the cut parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
- B29C69/02—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore of moulding techniques only
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/753—Medical equipment; Accessories therefor
Abstract
The invention provides a preparation process and equipment of a medical headrest, which belongs to the technical field of medical supplies, and comprises the following steps of: using a heat bonding device to thermally melt the two layers of filling cotton, wherein the melting point of the filling cotton is 230-300 ℃, and the two layers of filling cotton are thermally melted and compounded into the filling cotton with double-layer thickness; and (3) molding a pillow core: cutting the thickened filling cotton into pillow core shape by special-shaped cutting; the thickened filling cotton is cut into a pillow core shape through special-shaped cutting, and the depth of an upper pressing roller on a groove and the distance between the upper pressing roller and a lower pressing roller are adjusted through rotating bolts, so that an upper layer material and a lower layer material are fully attached through the upper pressing roller and the lower pressing roller, and the molten state material is continuously pressed for a certain time after being pressed through the upper pressing roller and the lower pressing roller, and the cooling time is also increased.
Description
Technical Field
The invention belongs to the technical field of medical supplies, and particularly relates to a preparation process and equipment of a medical headrest.
Background
With the rapid development of medical industry, nuclear magnetic resonance examination (MRI) has been one of the common examination items of modern medicine, and its popularization has led to the disfigurement of many diseases that were previously difficult to examine. However, when performing nuclear magnetic resonance examination, the headrest used by the patient is a common headrest, which has a certain influence on nuclear magnetic resonance imaging, the penetrable nuclear magnetic resonance filling cotton material in the existing headrest is difficult to foam and mold to the size required by the headrest at one time, two layers of filling cotton are required to be bonded, if the two layers of filling cotton are bonded through auxiliary agents such as glue, the auxiliary agents can cause shadow of images during nuclear magnetic resonance examination, and if the melting point of the filling cotton material is difficult to reach without adding the auxiliary agents by using ultrasonic heating.
Disclosure of Invention
In order to overcome the defects, the invention provides a preparation process and equipment of the headrest for medical treatment.
The technical scheme adopted for solving the technical problems is as follows:
s1, treating filling cotton: carrying out hot melting on the two layers of foamed filling cotton by using a hot bonding device, wherein the melting point of the filling cotton is 230-300 ℃, the filling cotton is compounded to the filling cotton with double-layer thickness by hot melting, and the foaming multiplying power of the filling cotton is 30-40;
s2, molding a pillow core: the filling cotton with double layers of thickness is cut into pillow inner by special shape;
s3, forming an upper sheet: baking the upper sheet to 180 ℃, and putting the upper sheet into a first die for cold press molding;
s4, adhesive spraying: placing the lower sheet material at the lower die of the second die, placing the pillow core between the upper sheet and the lower sheet, and coating the pillow core by a containing cavity formed by the upper sheet and the lower sheet, wherein the upper sheet and the lower sheet are adhered with the pillow core through surface glue spraying;
s5, three-layer die assembly: after the step S5 is completed, the second mould is closed, and then the second mould is heated by a heater;
s6, air extraction molding: when the three layers are assembled, air holes reserved in the second die are inserted into the accommodating cavity, air between the upper piece and the lower piece is exhausted through the air pump, the surfaces of the pillow inner surfaces of the upper piece and the lower piece are attached, the headrest is molded, and the headrest forms an exhaust hole at the pipe;
s7, closing the air holes: placing the headrest after the three-layer die assembly forming into a third die, heating by a heater, and hot-pressing to seal the exhaust hole in the headrest;
s8, trimming: trimming the headrest after the steps are finished through a jig knife to form a headrest finished product;
the headrest is divided into an upper piece, a pillow core and a lower piece, three layers are made of nuclear magnetic resonance penetrable materials, the upper piece and the lower piece are made of PE physical foaming cotton, the foaming multiplying power is between 30 and 40 multiplying powers, the surface of the headrest is provided with cloth marks, the headrest is arc-shaped, and the concave part of the headrest is contacted with the head of a human body;
the first die and the second die are used for forming the headrest, the second die and the third die are both provided with edge sealing lines, air holes are formed in two sides of the second die, when three layers are assembled, air in the dies is pumped out by the air pipes, and the third die is used for trimming the shape generated by the air holes of the second die;
the hot laminating device is provided with a frame and a laminating belt assembly, grooves are formed in two sides of the frame, upper laminating rollers are arranged between the grooves, lower laminating rollers are arranged below the upper laminating rollers, an inner rotating shaft of the lower laminating rollers is fixed on inner walls of two sides of the frame, two ends of the inner rotating shaft of the upper laminating rollers are used for adjusting the depth of the upper laminating rollers on the grooves and the distance between the upper laminating rollers and the lower laminating rollers through bolts, hot melting rollers and pressing rollers are arranged on the inner walls of two sides of the frame, supporting rollers are arranged below the hot melting rollers, and upper feeding rollers and lower feeding rollers are arranged on the inner walls of two sides of the frame.
Further, the laminating belt assembly is provided with two groups of driving belt mechanisms, the driving belt mechanisms are placed at intervals up and down, a fixing plate is arranged on the periphery of the driving belt mechanisms, a waist-shaped hole is formed in the fixing plate, a middle shaft of a roller on the driving belt mechanisms is arranged in the waist-shaped hole, and bolts penetrate through the upper portion of the fixing plate and are in threaded connection with two ends of the middle shaft in the waist-shaped hole.
Further, the upper layer material enters from above the upper feeding roller, passes between the pressing roller and the hot melting roller, then passes between the upper pressing roller and the lower pressing roller, and the lower layer material enters from between the upper feeding roller and the lower feeding roller, passes between the hot melting roller and the supporting roller, and then passes between the upper pressing roller and the lower pressing roller.
Further, the upper layer material passes through the space between the pressing roller and the hot melting roller, the bottom surface of the upper layer material contacts with the hot melting roller to enable the bottom surface of the upper layer material to reach a molten state, the lower layer material passes through the space between the hot melting roller and the supporting roller, and the upper side of the lower layer material contacts with the hot melting roller to enable the top surface of the lower layer material to reach a molten state.
Further, the upper layer material and the lower layer material pass through the space between the upper pressing roller and the lower pressing roller, and the rotating bolts adjust the depth of the upper pressing roller on the groove and the distance between the upper pressing roller and the lower pressing roller, so that the upper layer material and the lower layer material are fully attached between the upper pressing roller and the lower pressing roller.
Further, after the upper pressing roller and the lower pressing roller are pressed, the material is conveyed and cooled between the transmission belt mechanisms, and the distance between the upper transmission belt mechanism and the lower transmission belt mechanism is adjusted by adjusting the bolts on the fixed plate, so that the material is subjected to continuous pressing force.
The beneficial effects of the invention are as follows:
according to the invention, the filling cotton is thermally bonded through the thermal bonding equipment, the bonding surface of the filling cotton is heated to reach the melting point, the whole density of the filling cotton is not influenced, no auxiliary agent is needed, and nuclear magnetic resonance examination imaging is not influenced.
According to the invention, the cloth grain forming units are arranged on the second die and the third die, so that cloth grains are formed on the headrest, the contact area between the product and the die is increased by the cloth grains, the product is easier to demould, the original air hole marks on the die can be covered, the surface of the product is more scratch-resistant through the arrangement of the cloth grains, and the touch feeling is more comfortable when a human body contacts;
according to the invention, after the second die is heated and air-extracted for molding, the third die is utilized to further treat air holes generated by the second die molding product, so that the air holes are closed, and the appearance and the comfort are better;
according to the invention, the depth of the upper pressing roller on the groove and the distance between the upper pressing roller and the lower pressing roller are adjusted by rotating the bolt, so that the upper layer material and the lower layer material are fully attached between the upper pressing roller and the lower pressing roller, and the acting force and the cooling time for continuously pressing the molten state material for a certain time after the upper pressing roller and the lower pressing roller are pressed;
according to the invention, the upper feeding roller and the lower feeding roller are arranged, so that materials respectively enter from the upper part and the middle part of the upper feeding roller, and the upper layer and the lower layer of materials are not easy to overlap before entering the hot melting roller, so that larger resistance occurs.
Drawings
Fig. 1 is a process flow diagram of the present invention.
Fig. 2 is a perspective view of the thermal bonding apparatus of the present invention.
FIG. 3 is a schematic view showing a partial structure of the thermal bonding apparatus according to the present invention.
FIG. 4 is a second schematic view of the thermal bonding apparatus according to the present invention.
FIG. 5 is a schematic view of a conformable belt assembly according to the present invention.
FIG. 6 is a schematic diagram of a first embodiment of the present invention.
FIG. 7 is a schematic view of the pillow core according to the present invention.
Fig. 8 is a schematic structural diagram of a second mold according to the present invention.
FIG. 9 is a schematic diagram of a part of a second mold according to the present invention.
FIG. 10 is a schematic diagram of a second mold part according to the present invention.
FIG. 11 is a schematic view of a third mold according to the present invention.
FIG. 12 is a second schematic view of a third mold part according to the present invention.
Fig. 13 is a schematic view of the structure of the product of the present invention.
In the figure:
1. a thermal bonding device; 2. fitting the belt assembly; 3. a frame; 4. a hot melt drum; 5. an upper feed roller; 6. a lower feeding roller; 7. an upper pressing roller; 8. a lower pressing roller; 9. a pressing roller; 10. a fixing plate; 11. a groove; 12. supporting rollers; 13. a drive belt mechanism; 14. a waist-shaped hole; 15. a first die; 16. a pillow core; 17. a second die; 18. air holes; 19. edge sealing lines; 20. a third die; 21. and a roller center shaft.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
The headrest 21 is divided into an upper piece, a pillow core 16 and a lower piece, wherein three layers are made of nuclear magnetic resonance penetrable materials, the upper piece and the lower piece are made of PE (polyethylene) physical foaming foam with the foaming multiplying power between 30 and 40 multiplying powers, the surface of the headrest 21 is provided with cloth marks, the headrest 21 is arc-shaped, and the concave part is contacted with the head of a human body.
The first die 15 related to the headrest 21 is needed for loading, the second die 17 and the third die 20 are used for headrest molding, the second die 17 and the third die 20 are both provided with edge sealing lines 19, air holes 18 are formed in two sides of the second die 17, when the three layers are assembled, air in the dies is pumped out by the air pipes, and the third die 20 is used for trimming the shape generated by the air holes of the second die 17.
The heat laminating device 1 is provided with a frame 3 and a laminating belt assembly 2, grooves 11 are formed in two sides of the frame 3, upper laminating rollers 7 are arranged between the grooves 11, lower laminating rollers 8 are arranged below the upper laminating rollers 7, an inner rotating shaft of the lower laminating rollers 8 is fixed on inner walls of two sides of the frame 3, two ends of the inner rotating shaft of the upper laminating rollers 7 are used for adjusting the depth of the upper laminating rollers 7 on the grooves 11 and the distance between the upper laminating rollers 7 and the lower laminating rollers 8 through bolts, hot melting rollers 4 and pressing rollers 9 are arranged on inner walls of two sides of the frame 3, supporting rollers 12 are arranged below the hot melting rollers 4, and upper feeding rollers 5 and lower feeding rollers 6 are arranged on inner walls of two sides of the frame 3.
In this embodiment, the laminating belt assembly 2 is provided with two groups of driving belt mechanisms 13, the driving belt mechanisms 13 are placed at intervals up and down, a fixing plate 10 is arranged on the periphery of the driving belt mechanisms 13, a waist-shaped hole 14 is arranged on the fixing plate 10, a roller center shaft 211 on the driving belt mechanism 13 is installed in the waist-shaped hole 14, and bolts penetrate through the upper portion of the fixing plate 10 and are in threaded connection with two ends of the center shaft 211 on the upper Fang Guntong in the waist-shaped hole 14.
In this embodiment, the upper layer material enters from above the upper feed roller 5, passes between the pinch roller 9 and the fuse roller 4, and then between the upper pinch roller 7 and the lower pinch roller 8, and the lower layer material enters from between the upper feed roller 5 and the lower feed roller 6, passes between the fuse roller 4 and the support roller 12, and then between the upper pinch roller 7 and the lower pinch roller 8.
In this embodiment, the upper material passes between the pressing roller 9 and the hot-melting roller 4, and the bottom surface of the upper material contacts the hot-melting roller 4 to make the bottom surface of the upper material reach a molten state, the lower material passes between the hot-melting roller 4 and the supporting roller 12, and the upper surface of the lower material contacts the hot-melting roller 4 to make the top surface of the lower material reach a molten state.
Through adopting above-mentioned technical scheme, upper material and lower floor's material are through going up between pressfitting gyro wheel 7 and the pressfitting gyro wheel 8 down, rotate the bolt and adjust the degree of depth of last pressfitting gyro wheel 7 on recess 11 and go up the distance between pressfitting gyro wheel 7 and the pressfitting gyro wheel 8 down, make upper material and lower floor's material fully laminate through going up between pressfitting gyro wheel 7 and the pressfitting gyro wheel 8 down.
In this embodiment, after the upper pressing roller 7 and the lower pressing roller 8 are pressed, the material is conveyed and cooled between the driving belt mechanisms 13, and the distance between the upper driving belt mechanism 13 and the lower driving belt mechanism 13 is adjusted by adjusting the bolts on the fixing plate 10, so that the material is subjected to continuous pressing force.
In this embodiment, the filling cotton is treated, the foaming multiplying power of the filling cotton is thirty to forty times, the two layers of filling cotton are thermally fused by using the thermal bonding device 1, the melting point of the filling cotton is two hundred thirty degrees to three hundred degrees celsius, the thermal fusion is compounded to the filling cotton with double-layer thickness, and the filling cotton thickened to the double-layer thickness is cut into the shape of the pillow core 16 through special shapes.
In this embodiment, the first mold 15, the second mold 17 and the third mold 20 are all internally provided with the cloth, and the cloth patterns have no influence on the penetration of the X-rays, so that the product can be demolded more easily besides the ventilation effect, the original air hole marks on the molds can be covered, the surface is more scratch-resistant, and the touch feeling of the cloth patterns is more comfortable than that of the smooth surface when the human body contacts.
In this embodiment, the fabric with the texture is adhered to the surface of the mold by glue, and the surface of the mold forms the fabric.
In this embodiment, the sand is blasted to form patterns, the surface of the mold can be corroded to form some pits by special liquid medicine corrosion, the sand falls into the pits by sand blasting, the patterns depend on the shape of the sand, and the patterns are bonded by glue after sand blasting, so that the patterns are finally formed.
In this embodiment, the headrest 21 is in a transverse U shape, the two sides of the headrest are convex and concave in the middle, and the surface of the headrest is provided with cloth grains, so that the head can be more comfortably attached, and the headrest is longitudinally provided with an inclined surface with a lower front part and a higher rear part.
In this embodiment, the upper sheet is baked to a temperature between one hundred eighty and two hundred fifty degrees celsius, and is put into a first mold 15 for cold press molding, the upper headrest sheet is primarily molded, and the upper and lower headrest sheets are PE physical foam cotton, and have the characteristics of no smell, high elasticity, scratch resistance and the like, and can be penetrated by X-rays.
In this embodiment, the lower sheet is placed on the lower die of the second die 17, and the pillow core 16 is placed between the upper sheet and the lower sheet, and the upper sheet and the lower sheet are adhered to the pillow core by surface spraying glue.
In this embodiment, after air drying, the three layers are assembled, the second die 17 is placed into a heater for heating, and the air holes 18 reserved by the second die 17 are inserted into the pipe during heating, and the air is pumped while being heated by the air pump.
In this embodiment, the air hole of the headrest 21 formed by the second mold 17 is closed by the third mold 20, and compared with the second mold 17, the third mold 20 has no air hole left, and the final product is obtained by trimming the air hole of the third mold 20 by a jig knife after the air hole of the third mold 20 is closed.
The working principle of the thermal bonding device 1 is as follows: in the invention, the upper layer material enters from above the upper feeding roller 5, passes through between the pressing roller 9 and the hot melting roller 4, then enters between the upper pressing roller 7 and the lower pressing roller 8, passes through between the upper feeding roller 5 and the lower feeding roller 6, passes through between the hot melting roller 4 and the supporting roller 12, then passes through between the upper pressing roller 7 and the lower pressing roller 8, passes through between the pressing roller 9 and the hot melting roller 4, the bottom surface of the upper layer material contacts with the hot melting roller 4 to enable the bottom surface of the upper layer material to reach a molten state, passes through between the hot melting roller 4 and the supporting roller 12, and passes through the upper pressing roller 7 and the lower pressing roller 8 to enable the top surface of the lower layer material to reach a molten state, the rotating bolts adjust the depth of the upper pressing roller 7 on the groove 11 and the distance between the upper pressing roller 7 and the lower pressing roller 8, so that the upper layer material and the lower layer material pass through the upper pressing roller 7 and the lower pressing roller 8, pass through the upper pressing roller 7 and the lower pressing roller 8 to enable the material to reach a molten state, the lower layer material to pass through the cooling belt mechanism 13, and the upper layer material is continuously applied by the transmission belt mechanism 13, and the upper layer material is subjected to a continuous force through the transmission mechanism 13, and the transmission mechanism is adjusted by the transmission mechanism 13.
The foregoing embodiments are merely examples of the present invention, and the scope of the present invention includes, but is not limited to, the forms and styles of the foregoing embodiments, and any suitable changes or modifications made by those skilled in the art, which are consistent with the claims of the present invention, shall fall within the scope of the present invention.
Claims (3)
1. A process for preparing a medical headrest, which is characterized in that: the method comprises the following steps:
s1, treating filling cotton: carrying out hot melting on the two layers of foamed filling cotton by using a hot bonding device (1), wherein the melting point of the filling cotton is 230-300 ℃, the filling cotton is compounded into the filling cotton with double-layer thickness by hot melting, and the foaming multiplying power of the filling cotton is 30-40;
s2, molding a pillow core: the filling cotton with double layers of thickness is cut into a pillow core (16) through special-shaped cutting;
s3, forming an upper sheet: baking the upper sheet to 180 ℃, and putting the upper sheet into a first die (15) for cold press molding;
s4, adhesive spraying: placing the lower sheet material at the lower die of a second die (17), placing the pillow core (16) between the upper sheet and the lower sheet, and coating the pillow core by a containing cavity formed by the upper sheet and the lower sheet, wherein the upper sheet and the lower sheet are adhered with the pillow core (16) through surface glue spraying;
s5, three-layer die assembly: after the step S5 is finished, the second die (17) is closed, and then the second die (17) is heated by a heater;
s6, air extraction molding: when the three layers are assembled, air holes (18) reserved by a second die (17) are inserted into the accommodating cavity, air between the upper piece and the lower piece is exhausted by an air pump, the surfaces of the pillow inner surfaces of the upper piece and the lower piece are attached, the headrest is formed, and the headrest forms an air exhaust hole at the pipe;
s7, closing the air holes: placing the headrest after the three-layer die assembly forming into a third die (20), heating by a heater, and hot-pressing to seal the exhaust hole in the headrest;
s8, trimming: trimming the headrest after the steps are finished through a jig knife to form a headrest finished product;
the headrest (21) is divided into an upper piece, a pillow core (16) and a lower piece, three layers are made of nuclear magnetic resonance penetrable PE physical foaming materials, cloth grains are arranged on the surface of the headrest (21), the headrest (21) is arc-shaped, and the concave part is contacted with the head of a human body;
thermal bonding equipment for implementing the step of filling cotton: the heat laminating equipment is the heat laminating equipment capable of implementing or applying the step S1 of the medical headrest preparation process, the heat laminating equipment (1) is provided with a frame (3) and a laminating belt assembly (2), grooves (11) are formed in two sides of the frame (3), an upper laminating roller (7) is arranged between the grooves (11), a lower laminating roller (8) is arranged below the upper laminating roller (7), an inner rotating shaft of the lower laminating roller (8) is fixed on two side inner walls of the frame (3), the depth of the upper laminating roller (7) on the grooves (11) and the distance between the upper laminating roller (7) and the lower laminating roller (8) are adjusted through bolts at two ends of the inner rotating shaft of the upper laminating roller (7), a hot melting roller (4) and a pressing roller (9) are arranged on two side inner walls of the frame (3), a supporting roller (12) is arranged below the hot melting roller (4), and an upper feeding roller (5) and a lower feeding roller (6) are arranged on two side inner walls of the frame (3). The laminating belt assembly (2) is provided with two groups of driving belt mechanisms (13), the driving belt mechanisms (13) are arranged at intervals up and down, a fixing plate (10) is arranged on the periphery of the driving belt mechanisms (13), a waist-shaped hole (14) is formed in the fixing plate (10), a middle shaft (211) of an upper roller of the driving belt mechanism (13) is arranged in the waist-shaped hole (14), and bolts penetrate through the upper part of the fixing plate (10) and are in threaded connection with two ends of the middle shaft (211) of an upper Fang Guntong in the waist-shaped hole (14); the upper layer material enters from above the upper feeding roller (5), passes through between the pressing roller (9) and the hot melting roller (4), then passes through between the upper pressing roller (7) and the lower pressing roller (8), and the lower layer material enters through between the upper feeding roller (5) and the lower feeding roller (6), passes through between the hot melting roller (4) and the supporting roller (12), and then passes through between the upper pressing roller (7) and the lower pressing roller (8); the upper layer material passes through a space between the pressing roller (9) and the hot melting roller (4), the bottom surface of the upper layer material contacts with the hot melting roller (4) to enable the bottom surface of the upper layer material to reach a molten state, the lower layer material passes through a space between the hot melting roller (4) and the supporting roller (12), and the upper side of the lower layer material contacts with the hot melting roller (4) to enable the top surface of the lower layer material to reach a molten state; the depth of the upper pressing roller (7) on the groove (11) and the distance between the upper pressing roller (7) and the lower pressing roller (8) are adjusted by rotating bolts through the upper pressing roller (7) and the lower pressing roller (8), so that the upper material and the lower material are fully attached through the upper pressing roller (7) and the lower pressing roller (8); the material is conveyed and cooled between the upper pressing roller (7) and the lower pressing roller (8) through a transmission belt mechanism (13), and the distance between the upper transmission belt mechanism (13) and the lower transmission belt mechanism (13) is adjusted through adjusting the bolts on the fixing plate (10), so that the material is subjected to continuous pressing force;
a medical headrest molding device for implementing the steps: including mould (15), no. two moulds (17), no. three moulds (20), still be equipped with on No. two moulds (17) and No. three moulds (20) and seal edge line (19), no. two moulds (17) both sides are equipped with gas pocket (18), be equipped with cloth line formation unit on the centre form of No. two moulds (17) and No. three moulds (20), cloth line formation unit enables the headrest outside and forms cloth line.
2. The process for preparing a medical headrest according to claim 1, wherein: the cloth grain forming unit is provided with a sand spraying layer and a glue bonding layer, the sand spraying layer is arranged on the inner die, the glue bonding layer is arranged on the sand spraying layer, and the glue bonding layer is provided with a sticking cloth in a sticking mode.
3. The process for preparing a headrest for medical use according to claim 2, wherein: the cloth grain forming unit is provided with a sand spraying layer, the sand spraying layer is arranged on the inner die, and cloth grains are corroded on the sand spraying layer through chemical liquid medicine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111124923.4A CN113829631B (en) | 2021-09-25 | 2021-09-25 | Medical headrest preparation process and equipment thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111124923.4A CN113829631B (en) | 2021-09-25 | 2021-09-25 | Medical headrest preparation process and equipment thereof |
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| CN113829631A CN113829631A (en) | 2021-12-24 |
| CN113829631B true CN113829631B (en) | 2023-05-12 |
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| JP6489399B2 (en) * | 2014-06-19 | 2019-03-27 | キョーラク株式会社 | Resin sandwich panel |
| CN209454193U (en) * | 2018-12-29 | 2019-10-01 | 佛山市高明爱博广告装饰材料有限公司 | A kind of KT plate hot pressing device |
| CN110126282A (en) * | 2019-05-31 | 2019-08-16 | 广州恒科圣自动化设备有限公司 | A kind of pearl cotton pressure cotton removes collodion silk machine |
| CN112743860A (en) * | 2020-12-22 | 2021-05-04 | 重庆新士腾包装制品有限公司 | Pearl wool laminating process |
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