CN113352621A - Hot-pressing device and method for automobile interior trim part with real sewing thread surface - Google Patents
Hot-pressing device and method for automobile interior trim part with real sewing thread surface Download PDFInfo
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- CN113352621A CN113352621A CN202110512699.XA CN202110512699A CN113352621A CN 113352621 A CN113352621 A CN 113352621A CN 202110512699 A CN202110512699 A CN 202110512699A CN 113352621 A CN113352621 A CN 113352621A
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- 238000007731 hot pressing Methods 0.000 title claims abstract description 94
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000009958 sewing Methods 0.000 title claims description 27
- 230000007246 mechanism Effects 0.000 claims abstract description 53
- 239000003292 glue Substances 0.000 claims abstract description 31
- 230000004913 activation Effects 0.000 claims abstract description 19
- 238000010438 heat treatment Methods 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 238000005034 decoration Methods 0.000 claims description 9
- 238000012544 monitoring process Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 abstract description 11
- 238000000576 coating method Methods 0.000 abstract description 5
- 239000011248 coating agent Substances 0.000 abstract description 4
- 230000009471 action Effects 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000010985 leather Substances 0.000 description 2
- 238000007666 vacuum forming Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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Classifications
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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
- B29C65/10—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using hot gases (e.g. combustion gases) or flames coming in contact with at least one of the parts to be joined
-
- 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
- B29C65/4805—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 type of adhesives
- B29C65/481—Non-reactive adhesives, e.g. physically hardening adhesives
- B29C65/4815—Hot melt adhesives, e.g. thermoplastic adhesives
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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
- B29C65/7841—Holding or clamping means for handling purposes
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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
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3005—Body finishings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention provides a hot-pressing device and a hot-pressing method for a real seam skin automotive interior trim part, wherein the device comprises a die carrier, an upper die mechanism, a lower die mechanism, a vacuum mechanism, a hot air mechanism and a high-pressure mechanism, wherein the lower die mechanism comprises a lower die plate arranged on the die carrier; the upper die mechanism comprises an upper die plate; the vacuum mechanism comprises a vacuum pump arranged on the die carrier and a vacuum tube connected with the vacuum pump, and the vacuum tube is communicated with the die cavity; the hot air mechanism comprises a heating device which is arranged on the die carrier and used for providing hot air for the die cavity, and a temperature control device which is electrically connected with the heating device; the high-pressure mechanism comprises a compressed air conveying device for providing compressed air for the mold cavity in a communication mode, and a pressure sensor arranged in the mold cavity. The hot pressing device for the real seam skin automotive upholstery provided by the invention adopts a non-contact hot pressing device, two necessary conditions of glue activation temperature and bonding pressure are realized, the hot pressing efficiency is improved, and a novel forming process method for coating the vacuum-formed skin real seam is also provided.
Description
Technical Field
The invention relates to the field of processing and detecting of automotive interiors, in particular to a hot-pressing device and method for automotive interiors with real sewing threads and skins.
Background
High perceived value, fashionable appearance and pleasant feel are the most prominent "soft" elements of automotive interiors that have become the lowest requirements for high-priced or high-end vehicles. High-end luxury cars generally adopt leather sewing and then coating as interior trim parts, and with the improvement of car technology and quality, some middle and low-end car interior trims also adopt a soft package scheme for meeting different customer requirements. The method mainly comprises the processes of vacuum forming of the surface skin, pressing and coating. The common female die compounding process can only form a false suture which has the same color as the skin and can not change the color of the suture. For middle and high-grade vehicle types, a female die real sewing thread hot pressing process is preferably adopted, after the skin formed by the female die is sewn, the female die hot pressing process is then hot pressed with the framework, sewing threads with different colors can be selected, and the requirements of different customers are met.
The hot pressing of the real seam line of the female die formed skin can meet the requirements of colorful soft packages and is more close to the cladding effect of leather sewing, but also brings new problems. The sewn surface skin needs to be bonded with the framework through glue, and the glue needs to meet two conditions of high-temperature activation and pressure diffusion in the bonding process. The traditional hot pressing mode is that products are compressed through an upper template and a lower template, and the products are conducted to activate glue through the temperature of electric heating in the die. However, the skin formed by the female die is formed into a product molding contour with edges, and the die directly contacts the surface of the product, so that the product is easily crushed, and the product is scrapped.
Disclosure of Invention
The embodiment of the invention provides a hot-pressing device and a hot-pressing method for an automobile interior trim part with a real sewing thread surface skin, and aims to solve the technical problems of low hot-pressing efficiency and poor hot-pressing quality of a direct contact type hot-pressing system in the prior art.
The invention provides a hot-pressing device for an automobile interior trim part with a real sewing thread skin, which comprises a die frame, an upper die mechanism, a lower die mechanism, a vacuum mechanism, a hot air mechanism and a high-pressure mechanism, wherein the lower die mechanism comprises a lower die plate arranged on the die frame; the upper die mechanism comprises an upper die plate which is arranged on the die frame and corresponds to the lower die plate up and down, and a die cavity for accommodating the inner decoration of the surface of the true sewing thread for hot pressing is formed between the upper die plate and the lower die plate; the vacuum mechanism comprises a vacuum pump arranged on the die carrier and a vacuum tube connected with the vacuum pump, and the vacuum tube is communicated with the die cavity; the hot air mechanism comprises a heating device arranged on the die carrier and used for providing hot air into the die cavity, and a temperature control device electrically connected with the heating device; the high-pressure mechanism comprises a compressed air conveying device for providing compressed air for the mold cavity in a communicating mode, and a pressure sensor arranged in the mold cavity and used for monitoring the pressure in the mold cavity.
In some embodiments, the heat compensation device is connected with the lower template.
In some embodiments, the heat compensation device includes a water tank, and a water pipe connected to the water tank, and the water pipe is disposed on the lower template.
In some embodiments, the upper mold mechanism further comprises an air inlet hole formed in the upper mold plate, and the air inlet hole is communicated with the air delivery pipeline of the compressed air delivery device.
In some embodiments, the lower die mechanism further comprises a plurality of vacuum holes formed in the lower die plate, and the plurality of vacuum holes are all communicated with the vacuum pipes.
In a second aspect, the invention provides a hot pressing method for a real seam skin automotive interior part, which comprises the following steps:
preheating a die cavity of a hot-pressing device, and placing the inner decoration piece of the surface of the true sewing thread sprayed with glue in the preheated die cavity;
vacuumizing a mold cavity of the hot pressing device, and starting an upper template and a lower template of the hot pressing device to be matched;
heating the upper template, the real seam skin automotive interior part, the glue and the lower template to a preset glue activation temperature;
and when the preset glue activation temperature is reached, controlling the upper template and the lower template to be locked in a matched mode, and carrying out hot pressing on the real seam line surface inner decoration piece between the upper template and the lower template under the preset hot pressing pressure.
In some embodiments, the step of "preheating the mold cavity of the hot press apparatus" is performed at a temperature ranging from 50 ℃ to 60 ℃.
In some embodiments, the vacuum degree in the step of "vacuuming the mold cavity of the hot press apparatus" is in a range of-0.09 Mpa to-0.06 Mpa.
In some embodiments, the preset glue activation temperature is in a range of 60 ℃ to 70 ℃.
In some embodiments, in the step of hot-pressing the natural suture skin upholstery between the upper and lower mold plates under a preset hot-pressing pressure, the preset hot-pressing pressure has a pressure value ranging from 0.1Mpa to 0.5 Mpa.
The technical scheme provided by the invention has the beneficial effects that:
according to the hot pressing device and the method for the real suture line skin automotive upholstery, the non-contact type hot pressing device is adopted, glue is heated and activated in a hot air mode, the traditional mode that the glue is heated and activated in a heat conduction mode is changed, a mold is required to be in contact with a product, glue bonding pressure is provided through lower template vacuum and upper template compressed air, two necessary conditions of glue activation temperature and bonding pressure are achieved in a non-contact mode, compared with traditional hot pressing coating equipment, the efficiency is improved, the vacuum forming skin real suture line coating process is made possible, and a wider process method for automotive upholstery is developed.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a hot-press device for a real seam skinned automotive interior trim part according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an upper template of a hot-pressing device of a real seam skinned automotive interior provided by an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a lower template of a hot-pressing device of a real seam skinned automotive interior provided in an embodiment of the present invention;
fig. 4 is a schematic flow chart of a method for hot-pressing a real seam skinned automotive interior trim part according to an embodiment of the present invention.
In the figure:
21. mounting a template; 22. an air inlet; 31. a lower template; 32. a vacuum hole; 41. a vacuum pump; 51. a heating device; 52. a blower; 61. an air compressor; 71. a heat compensation device; 81. a locking mechanism; 91. and (4) an ejection mechanism.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
The embodiment of the invention provides a hot-pressing device and a hot-pressing method for an automobile interior trim part with a real sewing thread surface skin, which can solve the technical problems of low hot-pressing efficiency and poor hot-pressing quality of a direct contact type hot-pressing system.
Referring to fig. 1, the invention provides a hot-pressing device for an automotive interior trim part with a real sewing thread skin, which comprises a mold frame, an upper mold mechanism, a lower mold mechanism, a vacuum mechanism, a hot air mechanism and a high-pressure mechanism, wherein the lower mold mechanism comprises a lower template 31 arranged on the mold frame; the upper die mechanism comprises an upper die plate 21 which is arranged on the die frame and corresponds to the lower die plate 31 up and down, and a die cavity for accommodating the real seam skin trim for hot pressing is formed between the upper die plate 21 and the lower die plate 31; the vacuum mechanism comprises a vacuum pump 41 arranged on the die carrier and a vacuum tube connected with the vacuum pump 41, and the vacuum tube is communicated with the die cavity; the hot air mechanism comprises a heating device 51 arranged on the die carrier and used for providing hot air into the die cavity, and a temperature control device electrically connected with the heating device 51; the high-pressure mechanism comprises a compressed air conveying device for providing compressed air for the mold cavity in a communicating mode, and a pressure sensor arranged in the mold cavity and used for monitoring the pressure in the mold cavity.
The hot pressing device for the real sewing thread skin automotive interior part provided by the invention adopts the non-contact hot pressing device, heats and activates glue through hot air, changes the traditional mode of heat conduction, needs the contact of a mould and a product, provides glue bonding pressure through the vacuum of the lower template 31 and the compressed air of the upper template 21, and realizes two necessary conditions of glue activation temperature and bonding pressure in a non-contact mode.
In one embodiment, the hot air device further comprises a blower 52, the heating device 51 adopts a leyden heater, the temperature control device adopts a thermocouple, the temperature of the leyden heater is set to be 100-200 ℃, after the set temperature is reached, the air is blown into the mold cavity through the blower 52, and the temperature of the mold cavity is monitored through the thermocouple.
In one embodiment, the temperature control device further comprises an infrared temperature sensor, and the infrared temperature sensor is used for monitoring the heating temperature of the real seam skin automotive upholstery in hot pressing.
In an embodiment, the heat compensation device 71 is connected to the lower template 31, and the heating device 51 is used for compensating heat dissipation loss of the hot pressing mold.
In an embodiment, the heat compensation device 71 includes a water tank and a water pipe connected to the water tank, the water pipe is attached to the lower template 31, and conducts and heats the lower template 31 by using water as a medium, so as to compensate for heat dissipation loss of the lower template 31 during hot pressing.
In one embodiment, the water in the water tank is heated to a temperature in the range of 50 ℃ to 80 ℃.
In an embodiment, referring to fig. 2, the upper mold mechanism further includes an air inlet 22 disposed on the upper mold plate 21, the compressed air delivery device is an air compressor 61, the air inlet 22 is communicated with an air delivery pipeline of the air compressor 61, and compressed air is injected from the air inlet 22 of the upper mold plate 21 and is used for delivering the compressed air to provide hot pressing pressure for the real seam skin automotive interior to be hot pressed.
In an embodiment, the pressure of each air inlet 22 can be independently controlled, that is, an overflow valve is respectively arranged on the air transmission pipeline communicated with each air inlet 22, and the pressure in the cavity of the air inlet 22 of the upper die plate 21 is adjusted by adjusting the overflow valve of the corresponding air inlet pipeline, so that the pressure in the cavity of each air inlet 22 is independently adjusted, and the glue bonding is assisted.
In an embodiment, referring to fig. 3, the lower mold mechanism further includes a plurality of vacuum holes 32 formed on the lower mold plate 31, the vacuum holes 32 are all communicated with the vacuum pipes, the vacuum pipes are communicated with an air compressor 61, and the vacuum holes 32 are used for providing a hot-pressing vacuum condition for the mold cavity.
In one embodiment, the vacuum degree in the cavity of each vacuum hole 32 is independently controlled and monitored, different working modes of working of a single vacuum hole 32 cavity and working of a multi-hole cavity at the same time can be realized, and the vacuum degree control in the cavity of the vacuum holes 32 is not influenced mutually, so that the method is suitable for the individualized hot compaction method of the real seam skin automobile interior trim part, and meets different hot pressing process requirements.
In one embodiment, the hot-pressing device for the automotive interior trim part with the real seam skin further comprises a mold opening and closing mechanism, and the mold opening and closing mechanism is used for longitudinally closing or opening the upper mold and the lower mold under the starting of the limit switch according to the set mold stroke.
In a more specific embodiment, the mold opening and closing mechanism is implemented as 3 groups of large cylinders.
As described above, according to the present application, it is predictable that the degree of mold press-fit has some effect on the lower mold vacuum and the mold cavity pressure.
In an embodiment, the hot pressing device for the automotive interior part with the real suture skin further comprises a locking mechanism 81 arranged on the mold frame, wherein the locking mechanism 81 is used for injecting high-pressure gas into the mold cavity or locking the upper mold plate 21 and the lower mold plate 31 before injecting compressed air from the air inlet 22 of the upper mold plate 21, so that the upper mold plate 21 and the lower mold plate 31 which are closed by the high-pressure gas are prevented from being ejected, and the hot pressing failure is avoided.
In an embodiment, the lower mold plate 31 is further provided with an exhaust valve for releasing the high pressure in the mold cavity and then unlocking the locking mechanism 81 after the hot pressing is completed and before the mold opening.
In an embodiment, the hot press device for the automotive interior part with the real sewing thread skin further comprises an ejection mechanism 91 arranged on the die carrier, wherein the ejection mechanism is used for ejecting the automotive interior part with the real sewing thread skin after hot pressing is completed, so that the appearance of a product is prevented from being damaged by pulling when the part is taken, and the quality of the finished product is prevented from being influenced.
In one embodiment, the ejection mechanism 91 is controlled by 4 groups of cylinders, and automatically ejects the automobile interior trim part with the real sewing thread surface after hot pressing.
Based on the same inventive concept, please refer to fig. 4, the invention provides a hot pressing method of a real sewing line skin automobile interior trim part, comprising the following steps:
s100, preheating a mold cavity of a hot pressing device, and placing a real seam skin inner decoration sprayed with glue into the preheated mold cavity;
s200, carrying out vacuum-pumping treatment on a mold cavity of the hot-pressing device, and starting an upper mold plate 21 and a lower mold plate 31 of the hot-pressing device to carry out mold closing;
s300, heating the automotive interior trim part with the real seam skin and the glue in the die cavity to a preset glue activation temperature;
s400, when the preset glue activation temperature is reached, controlling the upper template 21 and the lower template 31 to be matched and locked, and carrying out hot pressing on the real seam skin inner decoration piece between the upper template 21 and the lower template 31 under the preset hot pressing pressure.
In an embodiment, the step of controlling the upper mold plate 21 and the lower mold plate 31 to be locked together and to perform hot pressing on the natural seam skin inner decoration between the upper mold plate 21 and the lower mold plate 31 under a preset hot pressing pressure when the preset glue activation temperature is reached specifically includes the following steps:
controlling the vacuum degree of the mold cavity to reach a preset hot-pressing vacuum degree;
when the preset hot-pressing vacuum degree in the die cavity is reached, controlling the upper die plate 21 and the lower die plate 31 to be matched;
when the preset glue activation temperature is reached, controlling the upper template 21 and the lower template 31 to be locked;
and controlling the real sewing thread surface skin automobile interior trim part to be hot-pressed under the preset hot-pressing pressure.
As described above, according to the present application, the hot pressing pressure is provided by injecting compressed air into the air intake holes 22 of the upper mold plate 21.
As described above, according to the present application, the degree of vacuum of the hot press is provided by drawing a vacuum from the vacuum holes 32 of the lower plate 31.
As described above, according to the present application, the amount of compressed air injected into the air inlet holes 22 of the upper mold plate 21 needs to be adjusted according to the degree of press-fitting of the mold so as to reach a preset hot-press pressure value.
In one embodiment, in the step of "preheating the mold cavity of the hot press apparatus", the preheating temperature ranges from 50 ℃ to 60 ℃.
In one embodiment, the vacuum degree in the step of vacuumizing the mold cavity of the hot pressing device is in a range of-0.09 Mpa to-0.06 Mpa.
In one embodiment, the preset glue activation temperature is in a range of 60 ℃ to 70 ℃.
In one embodiment, in the step of hot-pressing the natural suture skin upholstery between the upper and lower mold plates 21 and 31 at a predetermined hot-pressing pressure, the predetermined hot-pressing pressure is set to a pressure value ranging from 0.1Mpa to 0.5 Mpa.
The invention provides a hot pressing method of a real sewing thread surface skin automobile interior trim part, which is realized by the following steps:
example 1
Setting the heating temperature of a Laida heater as 150 ℃, the activation temperature of glue as 65 ℃, the mold temperature as 55 ℃ and the mold cavity pressure as 0.3 MPa; and putting the automotive interior part product with the real seam surface coated with the glue, controlling the mold cavity to be vacuumized, pressing a mold closing switch when the vacuum degree in the mold cavity reaches-0.075 MPa, and closing the mold.
Opening a hot blast valve, starting a high-pressure locking cylinder after monitoring the activation temperature of the glue to reach a set value, locking an upper die by using a bolt, opening a compressed air valve, keeping the pressure of a die cavity to reach 0.3MPa, and carrying out hot press molding on the automotive interior trim part with the surface of the true seam line;
and after the hot pressing is finished, opening the exhaust valve, releasing the pressure in the mold, opening the locking cylinder of the locking mechanism 81, opening the upper mold, and ejecting the real seam line skin automobile interior trim part after the hot pressing is finished.
Example 2
Setting the heating temperature of a Laida heater to be 180 ℃, the activation temperature of glue to be 68 ℃, the mold temperature to be 60 ℃ and the mold cavity pressure to be 0.2 MPa; and putting the automobile interior trim part product with the real sewing thread surface skin, pressing a die closing switch after the vacuum degree reaches-0.08 MPa, and closing the die.
Opening a hot blast valve, starting a high-pressure locking cylinder after monitoring the activation temperature of the glue to reach a set value, locking an upper die by using a bolt, opening a compressed air valve, keeping the pressure of a die cavity to reach 0.2MPa, and carrying out hot press molding on the automotive interior trim part with the surface of the true seam line;
and opening an exhaust valve, releasing the pressure in the mold, opening a locking cylinder, opening an upper mold, and ejecting the hot-pressed real suture skin automotive interior trim part.
In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
It is to be noted that, in the present invention, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a hot press unit of real seam skin automotive interior spare which characterized in that includes:
a mold frame;
the lower die mechanism comprises a lower die plate arranged on the die frame;
the upper die mechanism comprises an upper die plate which is arranged on the die frame and corresponds to the lower die plate up and down, and a die cavity for accommodating the inner decoration pieces of the real seam skin for hot pressing is formed between the upper die plate and the lower die plate;
the vacuum mechanism comprises a vacuum pump arranged on the die carrier and a vacuum tube connected with the vacuum pump, and the vacuum tube is communicated with the die cavity;
the hot air mechanism comprises a heating device which is arranged on the die carrier and used for providing hot air for the die cavity, and a temperature control device which is electrically connected with the heating device; and the number of the first and second groups,
and the high-pressure mechanism comprises a compressed air conveying device for providing compressed air for the mold cavity in a communicating manner, and a pressure sensor arranged in the mold cavity and used for monitoring the pressure in the mold cavity.
2. The hot-pressing device for the automotive interior trim part with the real sewing thread skin as claimed in claim 1, characterized by further comprising a heat compensation device connected with the lower template.
3. The hot-pressing device for the automotive interior trim part with the real sewing thread skin as claimed in claim 2, wherein the heat compensation device comprises a water tank and a water pipe connected with the water tank, and the water pipe is arranged on the lower template.
4. The hot-pressing device for the automotive interior trim part with the real sewing thread skin as claimed in claim 1, wherein the upper mold mechanism further comprises an air inlet hole formed in the upper mold plate, and the air inlet hole is communicated with an air conveying pipeline of the compressed air conveying device.
5. The hot pressing device for the automotive interior trim part with the real suture line cover as claimed in claim 1, wherein the lower die mechanism further comprises a plurality of vacuum holes formed in the lower die plate, and the plurality of vacuum holes are all communicated with the vacuum tube.
6. A hot pressing method for an automobile interior trim part with a real sewing thread surface is characterized by comprising the following steps:
preheating a die cavity of a hot-pressing device, and placing the inner decoration piece of the surface of the true sewing thread sprayed with glue in the preheated die cavity;
vacuumizing a mold cavity of the hot pressing device, and starting an upper template and a lower template of the hot pressing device to be matched;
heating the upper template, the real seam skin automotive interior part, the glue and the lower template to a preset glue activation temperature;
and when the preset glue activation temperature is reached, controlling the upper template and the lower template to be locked in a matched mode, and carrying out hot pressing on the real seam line surface inner decoration piece between the upper template and the lower template under the preset hot pressing pressure.
7. The method for hot-pressing a real suture skinned automotive interior according to claim 6, wherein in the step of preheating the cavity of the hot-pressing device, the preheating temperature is in the range of 50 ℃ to 60 ℃.
8. The method for hot-pressing a real suture skin automotive interior trim part according to claim 6, wherein the vacuum degree in the step of vacuuming the cavity of the hot-pressing device is in a range of-0.09 Mpa to-0.06 Mpa.
9. The method for hot-pressing a true sewing thread skin automotive interior trim part according to claim 6, characterized in that the preset glue activation temperature is in a temperature range of 60 ℃ to 70 ℃.
10. The hot-pressing method of the real suture line skin automotive interior trim part as claimed in claim 6, wherein in the step of hot-pressing the real suture line skin interior trim part between the upper and lower mold plates under a preset hot-pressing pressure, the preset hot-pressing pressure has a pressure value ranging from 0.1Mpa to 0.5 Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110512699.XA CN113352621A (en) | 2021-05-11 | 2021-05-11 | Hot-pressing device and method for automobile interior trim part with real sewing thread surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110512699.XA CN113352621A (en) | 2021-05-11 | 2021-05-11 | Hot-pressing device and method for automobile interior trim part with real sewing thread surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113352621A true CN113352621A (en) | 2021-09-07 |
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| CN202110512699.XA Pending CN113352621A (en) | 2021-05-11 | 2021-05-11 | Hot-pressing device and method for automobile interior trim part with real sewing thread surface |
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Application publication date: 20210907 |