CN113400654B - Multifunctional thermal diaphragm machine for processing plastic products - Google Patents
Multifunctional thermal diaphragm machine for processing plastic products Download PDFInfo
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- CN113400654B CN113400654B CN202110616918.9A CN202110616918A CN113400654B CN 113400654 B CN113400654 B CN 113400654B CN 202110616918 A CN202110616918 A CN 202110616918A CN 113400654 B CN113400654 B CN 113400654B
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- sealing cover
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- preheating
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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
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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
- B29C35/16—Cooling
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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
- B29C65/24—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools characterised by the means for heating the tool
- B29C65/30—Electrical means
- B29C65/305—Electrical means involving the use of cartridge heaters
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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
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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
- B29C66/001—Joining in special atmospheres
- B29C66/0012—Joining in special atmospheres characterised by the type of environment
- B29C66/0014—Gaseous environments
- B29C66/00145—Vacuum, e.g. partial vacuum
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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
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
- B29C66/024—Thermal pre-treatments
- B29C66/0242—Heating, or preheating, e.g. drying
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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
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/03—After-treatments in the joint area
- B29C66/034—Thermal after-treatments
- B29C66/0342—Cooling, e.g. transporting through welding and cooling zone
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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
- B29C35/16—Cooling
- B29C2035/1658—Cooling using gas
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention provides a multifunctional thermal diaphragm machine for processing plastic products, which comprises a rack, wherein a preheating sealing cover is fixed at the top of a feeding end of the rack, a cooling sealing cover is fixed at the top of a discharging end of the rack, a diaphragm box fixed on the upper surface of the rack is arranged between the preheating sealing cover and the cooling sealing cover, a first pretreatment assembly is arranged in the preheating sealing cover, and a second pretreatment assembly with the same structure as the first pretreatment assembly is arranged in the cooling sealing cover. The invention can support two sets of plastic products to work simultaneously, and cools and heats the plastic products according to different processing states of the plastic products, so as to facilitate the processing of the plastic products.
Description
Technical Field
The invention mainly relates to the technical field of thermal diaphragm machines, in particular to a multifunctional thermal diaphragm machine for processing plastic products.
Background
With the development of science and technology, the quality requirement on plastic products is higher and higher, and in order to meet the characteristics of light weight and high strength of the existing plastic products, composite diaphragms and carbon fiber materials are often required to be arranged on the plastic products.
According to a membrane mechanism and a packaging device provided in patent document CN202020949595.6, the product comprises a membrane conveying assembly configured to carry a membrane and capable of driving the membrane to move up and down in a vertical direction; a fixed assembly located on one side of the membrane delivery assembly; the first adjusting assembly penetrates through the membrane conveying assembly; the second adjusting assembly penetrates through the diaphragm conveying assembly, and an accommodating space for accommodating the diaphragm is formed among the second adjusting assembly, the first adjusting assembly and the fixing assembly; the first adjusting component is configured to be capable of sliding along the length direction of the diaphragm, so that the fixing component and the first adjusting component can abut against two sides of the diaphragm along the length direction of the diaphragm respectively, and the second adjusting component is configured to be capable of sliding along the width direction of the diaphragm, so that the second adjusting component can abut against two sides of the diaphragm along the width direction of the diaphragm. The diaphragm mechanism has strong universality.
However, the traditional thermal diaphragm machine still has defects, for example, although the thermal diaphragm machine can limit the diaphragm according to the size of the diaphragm, the universality is strong, the traditional diaphragm machine only heats the plastic product in the diaphragm box, the heating time is long, the compound efficiency of the plastic product and the material is low, and when the diaphragm box discharges materials, the cooling mechanism is not used for cooling, only natural air drying is used, and the efficiency is low.
Disclosure of Invention
The invention mainly provides a multifunctional heat diaphragm machine for processing plastic products, which is used for solving the technical problems in the background technology.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a multifunctional thermal diaphragm machine for processing plastic products comprises a rack, wherein a preheating sealing cover is fixed at the top of a feeding end of the rack, a cooling sealing cover is fixed at the top of a discharging end of the rack, a diaphragm box fixed on the upper surface of the rack is arranged between the preheating sealing cover and the cooling sealing cover, a first pretreatment assembly is arranged inside the preheating sealing cover, and a second pretreatment assembly with the same structure as the first pretreatment assembly is arranged inside the cooling sealing cover;
a plurality of cylinders are fixed at the top end inside the diaphragm box, an upper die is fixed at the bottom end of a piston rod of each cylinder, and a lower die fixed on the upper surface of the rack is arranged below the upper die;
the second preprocessing assembly comprises a plastic product limiting mechanism, a tooth-shaped bearing plate and a gas guide mechanism, wherein the plastic product limiting mechanism is fixed inside the cooling sealing cover and used for sealing the cooling sealing cover, the tooth-shaped bearing plate is fixed at the top end of the rack, the gas guide mechanism is located below the tooth-shaped bearing plate and fixed inside the rack, and a plurality of gas leakage holes distributed in a rectangular array are formed in the tooth-shaped bearing plate.
Furthermore, plastic products stop gear is including being fixed in the rotatory roller of four apex angle departments of cooling seal cover inner wall to and the cover is located flexible sealing strip on the rotatory roller, set up the opening that the symmetry set up on the flexible sealing strip, flexible sealing strip runs through frame and cooling seal cover and extends to outside, and end to end closes and encircles to utilize flexible sealing strip to the discharge gate of membrane case and the sealed of cooling seal cover discharge gate, improve the refrigeration effect of cooling seal cover internal component.
Further, gaseous guiding mechanism includes that the equidistance is located a plurality of live-rollers of frame inside, every the surface of live-roller all overlaps and is equipped with the folding strip of L shape for the folding strip of L shape can shelter from the gas leakage hole on the profile of tooth bearing plate, prevents that the inside air conditioning of frame from running off.
Further, gaseous guiding mechanism is still including being fixed in the belt pulley of live-rollers one end, it is a plurality of be connected through the belt between the belt pulley, the belt bottom supports and leans on there are a plurality of take-up pulleys, the take-up pulley through the pivot with the inner wall of frame rotates to be connected to utilize the take-up pulley to promote the belt and hug closely on the belt pulley, thereby improve a plurality of belt pulleys and live-rollers pivoted stability.
Furthermore, a precooling fan is fixed on the inner wall of the top end of the cooling sealing cover, a plurality of semiconductor refrigerators are fixed on the inner wall of the bottom end of the cooling sealing cover, the plurality of semiconductor refrigerators penetrate through the shell of the rack and extend into the rack, and then the cooled air produced by the semiconductor refrigerators at the bottom end of the cooling sealing cover is used for further cooling the plastic product from the bottom, so that the cooling efficiency of the plastic product is improved.
Further, the casing of preheating the sealed cowling is hollow structure, it has the fan that returns to imbed on draught fan, the bottom inner wall to preheat to embed on the sealed cowling top inner wall, the below of preheating the sealed cowling is equipped with and is fixed in the inside heat pump of frame, the end of giving vent to anger is connected with the inner chamber of preheating the sealed cowling through the pipeline to change the diaphragm incasement portion into high-grade heat energy and export to preheating the sealed cowling inside and heating through the low-grade heat energy of certain consumption through the heat pump.
Furthermore, heating pipes which are symmetrically arranged are fixed inside the diaphragm box and are electrically connected with the thermocouples, so that a worker can control the temperature and the heating time through the thermocouples connected with the PLC.
Furthermore, a sealing air bag is fixed on the upper surface of the lower die, so that the lower die expands towards the sealing air bag connected with the air pump through the upper surface of the lower die, a gap between the lower die and the upper die is reduced, and the sealing performance between the upper die and the lower die is improved.
Furthermore, the upper end and the lower end of the surface of one side, far away from each other, of the preheating sealing cover and the cooling sealing cover are provided with through holes for the flexible sealing strip, the inner wall of the hole body of each through hole is rotatably connected with a driven roller through a rotating shaft, the sealing performance between the inner wall of each through hole and the flexible sealing strip is reduced, and the circulation of air inside the rack and outside air is reduced.
Furthermore, all imbed the observation window on the lateral wall of diaphragm case, preheating seal cover and cooling seal cover for the workman can see through the observation window that imbeds on the diaphragm case, preheating seal cover and the cooling seal cover, observes the diaphragm case, preheats the operating conditions of seal cover and cooling seal cover internals.
Compared with the prior art, the invention has the following beneficial effects:
firstly, the invention can support two sets of plastic products to work simultaneously, one set of plastic products is heated in a diaphragm box, and the other set of plastic products is peeled off or prepared outside, and the invention specifically comprises the following steps: after the plastic products are placed in the preheating sealing cover at the feeding end of the rack and preheated, the plastic products are pushed into the diaphragm box for film coating, the workers push the plastic products into the cooling sealing cover for cooling, and at the moment, the other set of preheated plastic products are pushed into the diaphragm box for film coating.
Secondly, the plastic product can be cooled and heated according to different processing states of the plastic product, and a sealed environment is manufactured for the plastic product so as to facilitate the processing of the plastic product, specifically: through the switching of the plastic product stop gear who preheats in the sealed cowling, with the pan feeding mouth and the opening and shutting of discharge gate to preheating the sealed cowling control, thereby push at the plastic product to preheating the sealed cowling when inside, closed formation airtight space through preheating the sealed cowling, reduce the circulation of preheating the sealed cowling inner chamber and outside air, so that profile of tooth pressure-bearing plate bottom steam passes gas leakage hole and preheats the plastic product, and in this same way, the pan feeding mouth and the discharge gate that close the cooling sealed cowling through the plastic product stop gear in the cooling sealed cowling cool off.
The invention will be explained in detail below with reference to the drawings and specific embodiments.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a side view of the present invention;
FIG. 4 is a schematic structural view of a plastic product spacing mechanism of the present invention;
FIG. 5 is an isometric view of the present invention;
FIG. 6 is a cross-sectional view of the cooling boot seal of the present invention;
FIG. 7 is an enlarged view of the structure in area A of FIG. 1;
fig. 8 is an enlarged view of the structure of region a in fig. 2.
In the figure: 10. a diaphragm box; 11. a cylinder; 12. an upper die; 13. heating a tube; 131. a thermocouple; 14. a lower die; 20. a second pre-processing assembly; 21. a plastic product limiting mechanism; 211. a rotating roller; 212. a flexible sealing strip; 213. an opening; 214. a driven roller; 215. a through hole; 22. a tooth-shaped bearing plate; 221. air leakage holes; 23. a gas guiding mechanism; 231. a rotating roller; 232. an L-shaped folded strip; 233. a tension wheel; 234. a belt pulley; 235. a belt; 30. cooling the sealing cover; 31. a pre-cooling fan; 32. a semiconductor refrigerator; 40. a frame; 50. preheating a sealing cover; 51. an induced draft fan; 52. a return fan; 53. a heat pump.
Detailed Description
In order to facilitate an understanding of the invention, the invention will now be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the invention are shown, but which may be embodied in different forms and not limited to the embodiments described herein, but which are provided so as to provide a more thorough and complete disclosure of the invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the knowledge of the terms used herein in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
In a preferred embodiment of the present invention, referring to fig. 1-8, a multifunctional thermal membrane machine for processing plastic products includes a frame 40, a preheating sealing cover 50 is fixed on the top of a feeding end of the frame 40, a cooling sealing cover 30 is fixed on the top of a discharging end of the frame 40, a membrane box 10 fixed on the upper surface of the frame 40 is disposed between the preheating sealing cover 50 and the cooling sealing cover 30, a first pretreatment module 60 is disposed inside the preheating sealing cover 50, and a second pretreatment module 20 having the same structure as the first pretreatment module 60 is disposed inside the cooling sealing cover 30;
a plurality of air cylinders 11 are fixed at the top end inside the diaphragm box 10, an upper die 12 is fixed at the bottom end of a piston rod of each air cylinder 11, and a lower die 14 fixed on the upper surface of the rack 40 is arranged below each upper die 12;
the second pretreatment module 20 comprises a plastic product limiting mechanism 21 fixed inside the cooling seal cover 30 and used for sealing the cooling seal cover 30, a tooth-shaped pressure bearing plate 22 fixed at the top end of the rack 40, and a gas guide mechanism 23 located below the tooth-shaped pressure bearing plate 22 and fixed inside the rack 40, wherein a plurality of air leakage holes 221 distributed in a rectangular array are formed in the tooth-shaped pressure bearing plate 22;
it should be noted that, in this embodiment, after a worker places a carbon fiber composite material inside the upper die 12, the plastic product is placed inside the preheating sealing cover 50 at the feeding end of the rack 40 to be preheated, and then the plastic product is pushed into the diaphragm box 10, at this time, the upper die 12 is driven by the cylinder 11 to move downward, so that the transparent diaphragm inside the upper die 12 is in contact with the die bottom plate at the bottom end of the plastic product, since the plastic product is provided with a vacuum hole, and the vacuum hole is connected with the vacuum system, so that the transparent diaphragm is tightly attached to the plastic product along with the reduction of air between the transparent diaphragm and the plastic product, the internal environment is heated by the heating pipe 13 inside the diaphragm box 10, so that the plastic product and the transparent diaphragm are combined together, at this time, the upper die 12 moves upward under the driving of the cylinder 11, and the worker pushes the plastic product into the cooling sealing cover 30 to be cooled;
furthermore, the opening and closing of the feeding port and the discharging port of the preheating sealing cover 50 are controlled by opening and closing the plastic product limiting mechanism 21 in the preheating sealing cover 50, so that when the plastic product is pushed into the preheating sealing cover 50, a closed space is formed by closing the preheating sealing cover 50, and the circulation of the inner cavity of the preheating sealing cover 50 and the outside air is reduced, at the moment, the gas guide mechanism 23 is controlled to release the limitation of the gas leakage hole 221, because the gas leakage hole 221 is arranged at the top end of the tooth-shaped pressure bearing plate 22 for bearing the plastic product, hot gas at the bottom of the tooth-shaped pressure bearing plate 22 penetrates through the gas leakage hole 221 to preheat the plastic product, in this way, after the plastic product is pushed into the diaphragm box 10 for film coating processing, the plastic product is pushed into the cooling sealing cover 30, and the feeding port and the discharging port of the cooling sealing cover 30 are closed by the plastic product limiting mechanism 21 in the cooling sealing cover 30 for cooling.
Specifically, please refer to fig. 2, 4 and 6 again, in another preferred embodiment of the present invention, the plastic product limiting mechanism 21 includes rotating rollers 211 fixed at four top corners of the inner wall of the cooling seal cover 30, and flexible seal bands 212 sleeved on the rotating rollers 211, the flexible seal bands 212 are provided with openings 213 symmetrically arranged, the flexible seal bands 212 penetrate through the frame 40 and the cooling seal cover 30 to extend to the outside, and are connected end to form a ring;
it should be noted that, in this embodiment, when one of the rotating rollers 211 in the plastic product limiting mechanism 21 is driven by the motor to rotate, because the plurality of rotating rollers 211 are connected by the flexible sealing strip 212, the flexible sealing strip 212 is driven by the rotating rollers 211 to rotate, because the opening 213 is formed in the flexible sealing strip 212, when the opening 213 is opposite to the discharge port of the diaphragm box 10, a worker can guide the plastic product through the opening 213 to enter the inside of the cooling sealing cover 30 for cooling, and after entering, the opening 213 is driven to be staggered with the discharge port of the diaphragm box 10 by the rotation of the flexible sealing strip 212, so that the discharge port of the diaphragm box 10 and the discharge port of the cooling sealing cover 30 are sealed by the flexible sealing strip 212, and the refrigeration effect of the internal components of the cooling sealing cover 30 is improved;
further, the flexible sealing belt 212 is a gear belt, and the outer surface of the rotating roller 211 is provided with gear teeth, thereby improving the stability of the rotation of the flexible sealing belt 212.
Specifically, please refer to fig. 2 and 8 again, in another preferred embodiment of the present invention, the gas guiding mechanism 23 includes a plurality of rotating rollers 231 equidistantly disposed inside the frame 40, an L-shaped folding strip 232 is sleeved on an outer surface of each of the rotating rollers 231, the gas guiding mechanism 23 further includes a belt pulley 234 fixed to one end of the rotating roller 231, the plurality of belt pulleys 234 are connected through a belt 235, a plurality of tension pulleys 233 are abutted against a bottom end of the belt 235, and the tension pulleys 233 are rotatably connected to an inner wall of the frame 40 through a rotating shaft;
it should be noted that, in this embodiment, when the rotating roller 231 rotates, the L-shaped folding strip 232 is fixed on the rotating roller 231, so that the L-shaped folding strip 232 can shield the air leakage hole 221 on the tooth-shaped pressure-bearing plate 22, and prevent the cold air inside the rack 40 from flowing away;
further, when one of the rotating rollers 231 is driven to rotate by the output shaft of the motor connected with the rotating roller 231, the belt pulleys 234 on the rotating rollers 231 are connected with each other through the belt 235, so that the rotating rollers 231 and the belt 235 are driven to synchronously rotate, and the bottom end of the belt 235 is abutted against the tensioning pulley 233, so that the tensioning pulley 233 is used for pushing the belt 235 to be tightly attached to the belt pulleys 234, and the rotating stability of the belt pulleys 234 and the rotating rollers 231 is improved.
Specifically, please refer to fig. 2 and 5 again, in another preferred embodiment of the present invention, a pre-cooling fan 31 is fixed on an inner wall of a top end of the cooling sealing cover 30, a plurality of semiconductor refrigerators 32 are fixed on an inner wall of a bottom end of the cooling sealing cover, the plurality of semiconductor refrigerators 32 extend to the inside of the rack 40 through a housing of the rack 40, the housing of the preheating sealing cover 50 is a hollow structure, an induced draft fan 51 is embedded on the inner wall of the top end of the preheating sealing cover 50, a return fan 52 is embedded on the inner wall of the bottom end of the preheating sealing cover 50, and a heat pump 53 fixed inside the rack 40 is arranged below the preheating sealing cover 50;
it should be noted that, in this embodiment, the precooling fan 31 at the top end of the cooling seal cover 30 is used to initially cool the plastic product entering the cooling seal cover 30, and then the cooled air produced by the semiconductor refrigerator 32 at the bottom end of the cooling seal cover 30 is used to further cool the plastic product from the bottom, so as to improve the cooling efficiency of the plastic product;
furthermore, the preheating sealing cover 50 sucks the expanded hot air into an interlayer of the shell of the preheating sealing cover 50 through the induced draft fan 51 at the top end of the preheating sealing cover 50, the hot air flows back into the preheating sealing cover 50 again through the air return fan 52 at the bottom end of the preheating sealing cover 50 to be heated, heat circulation is formed, the utilization efficiency of hot air is improved, the air inlet end of the heat pump 53 is connected with the inside of the diaphragm box 10 through a pipeline, the air outlet end of the heat pump 53 is connected with the inner cavity of the preheating sealing cover 50 through a pipeline, and therefore low-grade heat energy which is consumed to a certain extent in the diaphragm box 10 is converted into high-grade heat energy through the heat pump 53 and is output to the inside of the preheating sealing cover 50 to be heated.
Specifically, please refer to fig. 2 and 3 again, in another preferred embodiment of the present invention, symmetrically disposed heating pipes 13 are fixed inside the diaphragm casing 10, the heating pipes 13 are electrically connected to the thermocouple 131, and the sealing air bag 141 is fixed on the upper surface of the lower mold 14;
it should be noted that, in the present embodiment, since the heating pipe 13 is fixed inside the diaphragm casing 10, so as to heat by using the heating pipe 13, since the heating pipe 13 is electrically connected to the thermocouple 131, a worker can control the temperature and the heating time by the thermocouple 131 connected to the PLC controller;
further, the lower mold 14 is inflated by the air pump to the connected sealing bladder 141 through the upper surface thereof to reduce the gap between the lower mold 14 and the upper mold 12, thereby improving the sealing property between the upper mold 12 and the lower mold 14.
Specifically, please refer to fig. 1 and 7 again, through holes 215 for the flexible sealing tapes 212 are formed at the upper and lower ends of the surfaces of one side of the preheating sealing cover 50 and the cooling sealing cover 30 away from each other, driven rollers 214 are rotatably connected to the inner walls of the through holes 215 through rotating shafts, and observation windows 54 are embedded in the side walls of the diaphragm box 10, the preheating sealing cover 50 and the cooling sealing cover 30;
furthermore, the preheating sealing cover 50 reduces the sealing performance between the inner wall of the through hole 215 and the flexible sealing belt 212 through the driven roller 214 in the through hole 215 formed on the preheating sealing cover, and reduces the circulation of the air inside the rack 40 and the outside air;
further, the worker can observe the working conditions of the internal components of the diaphragm case 10, the preheating sealing cover 50 and the cooling sealing cover 30 through the observation windows 54 embedded in the diaphragm case 10, the preheating sealing cover 50 and the cooling sealing cover 30.
The specific operation mode of the invention is as follows:
when a thermal diaphragm machine is used for processing a plastic product, a worker firstly places the plastic product on which the carbon fiber composite material is laid in a preheating sealing cover 50 at a feeding end of a rack 40 for preheating, then pushes the plastic product into a diaphragm box 10, at the moment, an upper die 12 descends under the driving of an air cylinder 11 so that a transparent diaphragm in the upper die 12 is in contact with a die bottom plate at the bottom end of the plastic product, as the plastic product is provided with a vacuum hole which is connected with a vacuum system, the transparent diaphragm is tightly attached to the plastic product along with the reduction of air between the transparent diaphragm and the plastic product, the internal environment is heated through a heating pipe 13 in the diaphragm box 10 so that the plastic product and the transparent diaphragm are combined together, at the moment, the upper die 12 ascends under the driving of the air cylinder 11, the worker pushes the plastic product into a cooling sealing cover 30 for cooling, and takes out the cooled plastic product;
the opening and closing of the feeding port and the discharging port of the preheating sealing cover 50 are controlled by opening and closing the plastic product limiting mechanism 21 in the preheating sealing cover 50, so that when a plastic product is pushed into the preheating sealing cover 50, a closed space is formed by closing the preheating sealing cover 50, the circulation of air in the inner cavity of the preheating sealing cover 50 and the outside is reduced, at the moment, the gas guide mechanism 23 is controlled to release the limitation of the gas guide mechanism on the gas leakage hole 221, the gas leakage hole 221 is arranged at the top end of the tooth-shaped pressure bearing plate 22 for bearing the plastic product, so that hot gas at the bottom of the tooth-shaped pressure bearing plate 22 penetrates through the gas leakage hole 221 to preheat the plastic product, and in the same way, after the plastic product is pushed into the diaphragm box 10 for film coating processing, the plastic product is pushed into the cooling sealing cover 30, and the feeding port and the discharging port of the cooling sealing cover 30 are closed through the plastic product limiting mechanism 21 in the cooling sealing cover 30 for cooling.
The invention is described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the above-described embodiments, and it is within the scope of the invention to adopt such insubstantial modifications of the inventive method concept and solution, or to apply the inventive concept and solution directly to other applications without modification.
Claims (8)
1. A multifunctional thermal diaphragm machine for processing plastic products comprises a rack (40) and is characterized in that a preheating sealing cover (50) is fixed to the top of a feeding end of the rack (40), a cooling sealing cover (30) is fixed to the top of a discharging end of the rack, a diaphragm box (10) fixed to the upper surface of the rack (40) is arranged between the preheating sealing cover (50) and the cooling sealing cover (30), a first pretreatment assembly (60) is arranged inside the preheating sealing cover (50), and a second pretreatment assembly (20) with the same structure as the first pretreatment assembly (60) is arranged inside the cooling sealing cover (30);
a plurality of air cylinders (11) are fixed at the top end of the interior of the diaphragm box (10), an upper die (12) is fixed at the bottom end of a piston rod of each air cylinder (11), and a lower die (14) fixed on the upper surface of the rack (40) is arranged below the upper die (12);
the second pretreatment assembly (20) comprises a plastic product limiting mechanism (21) which is fixed inside the cooling seal cover (30) and used for sealing the cooling seal cover (30), a tooth-shaped pressure bearing plate (22) which is fixed at the top end of the rack (40), and a gas guide mechanism (23) which is positioned below the tooth-shaped pressure bearing plate (22) and fixed inside the rack (40), wherein a plurality of air leakage holes (221) distributed in a rectangular array are formed in the tooth-shaped pressure bearing plate (22);
the gas guide mechanism (23) comprises a plurality of rotating rollers (231) which are arranged in the rack (40) at equal intervals, and the outer surface of each rotating roller (231) is sleeved with an L-shaped folding strip (232);
the gas guiding mechanism (23) further comprises a belt pulley (234) fixed at one end of the rotating roller (231), the belt pulleys (234) are connected through a belt (235), the bottom end of the belt (235) abuts against a plurality of tension pulleys (233), and the tension pulleys (233) are rotatably connected with the inner wall of the rack (40) through rotating shafts.
2. The multifunctional thermal diaphragm machine for processing plastic products as claimed in claim 1, wherein the plastic product limiting mechanism (21) comprises rotating rollers (211) fixed at four corners of the inner wall of the cooling seal cover (30), and flexible seal belts (212) sleeved on the rotating rollers (211), the flexible seal belts (212) are provided with symmetrically arranged openings (213), and the flexible seal belts (212) extend to the outside through the machine frame (40) and the cooling seal cover (30) and are connected end to close into a ring shape.
3. The multifunctional thermal diaphragm machine for processing plastic products, according to claim 1, is characterized in that a pre-cooling fan (31) is fixed on the inner wall of the top end of the cooling sealing cover (30), a plurality of semiconductor refrigerators (32) are fixed on the inner wall of the bottom end of the cooling sealing cover, and the plurality of semiconductor refrigerators (32) extend to the inside of the frame (40) through the housing of the frame (40).
4. The multifunctional heat diaphragm machine for processing plastic products, according to claim 1, is characterized in that a shell of the preheating sealing cover (50) is of a hollow structure, an induced draft fan (51) is embedded in the inner wall of the top end of the preheating sealing cover (50), an air return fan (52) is embedded in the inner wall of the bottom end of the preheating sealing cover (50), and a heat pump (53) fixed inside the rack (40) is arranged below the preheating sealing cover (50).
5. The multifunctional thermal membrane separating machine for processing plastic products as claimed in claim 1, characterized in that symmetrically arranged heating pipes (13) are fixed inside the membrane separating box (10), and the heating pipes (13) are electrically connected with thermocouples (131).
6. The multifunctional heat-diaphragm machine for processing plastic products of claim 1, wherein the sealing air bag (141) is fixed on the upper surface of the lower die (14).
7. The multifunctional heat membrane machine for processing plastic products as claimed in claim 2, wherein the preheating sealing cover (50) and the cooling sealing cover (30) are provided with through holes (215) for the flexible sealing strips (212) at the upper and lower ends of the side surfaces away from each other, and the inner wall of the through hole (215) is rotatably connected with a driven roller (214) through a rotating shaft.
8. The multifunctional thermal membrane machine for processing plastic products as claimed in claim 1, characterized in that the side walls of the membrane box (10), the preheating sealing cover (50) and the cooling sealing cover (30) are embedded with observation windows (54).
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| CN202110616918.9A CN113400654B (en) | 2021-06-03 | 2021-06-03 | Multifunctional thermal diaphragm machine for processing plastic products |
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| CN202110616918.9A CN113400654B (en) | 2021-06-03 | 2021-06-03 | Multifunctional thermal diaphragm machine for processing plastic products |
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