CN110154278B - Hot-pressing die and flexible layer forming equipment - Google Patents
Hot-pressing die and flexible layer forming equipment Download PDFInfo
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- CN110154278B CN110154278B CN201910454721.2A CN201910454721A CN110154278B CN 110154278 B CN110154278 B CN 110154278B CN 201910454721 A CN201910454721 A CN 201910454721A CN 110154278 B CN110154278 B CN 110154278B
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- 238000007731 hot pressing Methods 0.000 title claims abstract description 144
- 238000003825 pressing Methods 0.000 claims abstract description 3
- 238000000465 moulding Methods 0.000 abstract description 20
- 239000010410 layer Substances 0.000 description 67
- 239000004744 fabric Substances 0.000 description 37
- 238000000034 method Methods 0.000 description 10
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- 239000000463 material Substances 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 3
- 241000628997 Flos Species 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 239000004831 Hot glue Substances 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000001125 extrusion Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
-
- 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
-
- 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
- B29C65/72—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by combined operations or combined techniques, e.g. welding and stitching
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a hot-pressing die and flexible layer forming equipment using the same, wherein the hot-pressing die comprises a side forming module and an end face forming module, the side forming module comprises two oppositely arranged side die bodies, the end face forming module comprises a hot-pressing upper die arranged above the two side die bodies, the two side die bodies form a hot-pressing die cavity, a shell which is wrapped with a flexible layer in advance is placed in the hot-pressing die cavity, the hot-pressing die starts to close the die, the two side die bodies move towards the outer side face of the shell, the flexible layer at the edge of the shell is firstly pushed towards the inner side of the shell to form a flanging, then the flexible layer is attached to the outer side face of the shell, the hot-pressing upper die moves towards one side of a containing cavity of the shell, the flanging is pushed into the containing cavity and is attached to the cavity side wall of the containing cavity in a pressing manner. The hot-pressing die realizes the one-step molding of the flexible layer on the outer side surface of the shell, and improves the efficiency and quality of the flexible layer molding to a greater extent.
Description
Technical Field
The invention relates to the technical field of processing and manufacturing, in particular to a hot-pressing die and flexible layer forming equipment.
Background
In the process of processing and manufacturing the existing hollow shell, a flexible layer for protecting the appearance is generally pressed on the outer surface of the shell, and the flexible layer can be a protective film and can be made of plastics or cloth materials. For example, in the process of manufacturing a sound box shell, a layer of sound box cloth needs to be covered and processed on the outer surface of the sound box shell, the sound box cloth is also called horn cloth and horn mesh cloth, materials are mainly divided into silk floss, nylon wire, plastics, metal wire, metal mesh, metal hole plates and the like, the sound box cloth mainly plays roles of decoration, dust prevention, horn protection, sharp noise filtering and the like, along with the high-speed development of the audio and video industry, the horn mesh cloth is widely applied to audio products, and the grains of the horn cloth have texture, so that many consumer products without sound transmission requirements also select 'cloth clothes' to be worn. Due to the different shapes of the products requiring the fabric, for example: circular, oval, square etc. can require the whole surface of product usually, and that is to say that the whole cloth that covers of lateral surface covers to protect the shell of stereo set, and in order to make the net cloth cover difficult not hard up on the product, a large amount of hot melt adhesive membrane of using or spout PUR glue in the trade and laminate the surface of loudspeaker cloth in the product, and this required more positioning fixture equipment and manual operation lead to covering the manufacturing cost of cloth product and constantly rise.
Disclosure of Invention
The invention mainly aims to provide a hot-pressing die, aiming at improving the forming efficiency of a flexible layer.
In order to achieve the above object, the present invention provides a hot press mold for attaching a flexible layer to an outer side surface of a housing having a receiving cavity with at least one open end, the hot press mold comprising:
the side forming module comprises at least two side die bodies which are oppositely arranged, the at least two side die bodies form a hot-pressing die cavity, the shell is accommodated in the hot-pressing die cavity, the two side die bodies can relatively move towards the outer side face of the shell so as to laminate the flexible layer on the outer side face of the shell, and the flexible layer at the edge of the opening end of the shell is bent towards one side of the accommodating cavity to form a flange; and
the end face forming module comprises an upper hot-pressing die, the upper hot-pressing die can move towards the accommodating cavity of the shell and can move up and down, and the part of the upper hot-pressing die extends into the accommodating cavity to press the flanging into the accommodating cavity and press the flanging onto the cavity side wall of the accommodating cavity.
Optionally, the side form body includes the body and connect in the protruding structure of body, protruding structure orientation hold chamber one side extension length and be L, and L is more than or equal to 0.6mm is less than or equal to 1.0 mm.
Optionally, the distance from the outer side surface of the hot-pressing upper die partially extending into the accommodating cavity to the inner side wall of the shell is d1, and d1 is greater than or equal to 0.1mm and less than or equal to 0.3 mm;
and/or the distance between the outer side surface of the hot-pressing upper die partially exposed out of the accommodating cavity and the protruding structure is d2, and d2 is more than or equal to 0.5mm and less than or equal to 1.0 mm.
Optionally, the housing has a receiving cavity with openings at two ends, the side molding module includes four side mold bodies, the four side mold bodies surround to form the hot pressing mold cavity, the housing is received in the hot pressing mold cavity, the four side mold bodies can move relative to the outer side surface of the housing to attach the flexible layer to the outer side surface of the housing, and the flexible layer at the edges of the two openings of the housing is bent towards one side of the receiving cavity to form a flange;
the end face forming module comprises a hot pressing lower die, the hot pressing lower die and the hot pressing upper die can respectively move towards the accommodating cavity of the shell in a lifting mode, and the part of the hot pressing lower die extends into the accommodating cavity to press the flanging into the accommodating cavity and press the flanging onto the cavity side wall of the accommodating cavity.
Optionally, when the hot-pressing mold is in a mold closing state, two adjacent side molds of the four side molds are in clearance fit, and the flexible layer forms a hot-pressing mold dividing line on the surface of the shell, wherein the width of the hot-pressing mold dividing line is D1, and D1 is not less than 1mm and not more than 3 mm.
The invention also provides flexible layer forming equipment which comprises a rack, and a hot pressing mold and a cold pressure maintaining mold which are arranged on the rack, wherein the hot pressing mold is the hot pressing mold, and the cold pressure maintaining mold is arranged corresponding to the hot pressing mold and is used for maintaining the pressure of the hot-pressed shell.
Optionally, the cold dwell die includes:
the side pressure maintaining module comprises at least two side pressure maintaining mold bodies which are oppositely arranged, the at least two side pressure maintaining mold bodies form a pressure maintaining mold cavity, the hot-press formed shell is accommodated in the pressure maintaining mold cavity, and the two side pressure maintaining mold bodies can move relatively towards the outer side surface of the hot-press formed shell so as to enable the flexible layer to be attached to the outer side surface of the shell;
the end face pressure maintaining module comprises a cold pressure maintaining upper die, the cold pressure maintaining upper die can move towards the accommodating cavity of the shell and move up and down, and part of the cold pressure maintaining upper die extends into the accommodating cavity, so that the flanging is attached to the inner side wall of the shell.
Optionally, the outer side wall of the cold pressure maintaining upper die partially extending into the accommodating cavity is in interference fit with the inner side wall of the hot press formed shell, wherein the tolerance of the interference fit is d3, and d3 is greater than or equal to 0.1mm and less than or equal to 0.2 mm.
Optionally, the side pressure maintaining module comprises four side pressure maintaining mold bodies, the four side pressure maintaining mold bodies surround to form the pressure maintaining mold cavity, the hot press molded shell is accommodated in the pressure maintaining mold cavity, and the four side pressure maintaining mold bodies can move relatively towards the outer side face of the hot press molded shell;
the end face pressure maintaining module comprises a cold pressure maintaining lower die, and the cold pressure maintaining lower die can move towards the hot-press formed shell in a lifting mode;
and fourthly, matching the side pressure maintaining die body, the cold pressure maintaining upper die and the cold pressure maintaining lower die to maintain the pressure of the hot-press formed shell.
Optionally, when the cold pressure maintaining mold is in a closed state, two adjacent side pressure maintaining mold bodies in the four side pressure maintaining mold bodies are in clearance fit, and the flexible layer forms a pressure maintaining mold dividing line on the outer side surface of the hot-press molded shell, wherein the distance from the pressure maintaining mold dividing line to the hot-press mold dividing line is D2, and D2 is greater than or equal to 3mm and less than or equal to 5 mm.
The hot pressing die comprises a side forming module and an end face forming module, wherein the side forming module comprises two side die bodies which are arranged oppositely, the end face forming module comprises a hot pressing upper die which is arranged above the two side die bodies, the two side die bodies form a hot pressing die cavity, after a shell which is wrapped with a flexible layer in advance is placed in the hot pressing die cavity, the hot pressing die starts to close the die, the two side die bodies move towards the outer side face of the shell, the flexible layer at the edge of the shell is pushed towards the inner side of the shell to form a flanging, the flexible layer is attached to the outer side face of the shell, the hot pressing upper die moves towards one side of a containing cavity of the shell, the flanging is pushed into the containing cavity, and is attached to the cavity side wall of the containing cavity in a pressing mode. According to the hot-pressing die, when the flexible layer is hot-pressed and formed on the outer side surface of the shell, the redundant flexible layer at the edge can be attached to and hidden in the inner side wall of the shell through the matching of the hot-pressing front die, the hot-pressing rear die and the hot-pressing upper die, so that the redundant flexible layer at the edge does not need to be manually trimmed after the shell and the flexible layer are hot-pressed and formed, the one-step forming of the flexible layer on the outer side surface of the shell is realized, and the forming efficiency and quality of the flexible layer are greatly improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is an exploded view of a hot press mold according to an embodiment of the present invention;
FIG. 2 is a top view of the hot press mold shown in FIG. 1;
FIG. 3 is a cross-sectional view of the hot press mold shown in FIG. 2 taken along the line A-A;
FIG. 4 is an enlarged detail view of the heated press mold shown in FIG. 3 at A;
FIG. 5 is a schematic diagram of a structure in which a flexible layer is wrapped by a shell;
FIG. 6 is a schematic structural diagram of an embodiment of a flexible layer forming apparatus according to the present invention;
FIG. 7 is a top view of the flexible layer forming apparatus shown in FIG. 6;
FIG. 8 is a side view of the flexible layer forming apparatus shown in FIG. 6;
FIG. 9 is a top view of one embodiment of the cold dwell mold of the present invention;
FIG. 10 is a cross-sectional view of the cold dwell die shown in FIG. 9 taken along the direction B-B;
FIG. 11 is an enlarged view of a detail at B in the cold dwell die shown in FIG. 10;
fig. 12 is a schematic structural view of a hot pressing mold, a cold pressure maintaining mold and a conveying device in the flexible layer forming apparatus shown in fig. 6.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1 to 4 and 12, the present invention provides a hot press mold 100.
The hot pressing mold 100 of the present application is configured to attach a flexible layer to an outer side surface of a housing 20, where the housing 20 has an accommodating cavity 20a with at least one open end, and specifically, the hot pressing mold 100 includes a side forming module and an end surface forming module, where the side forming module includes at least two side mold bodies arranged oppositely, the at least two side mold bodies form a hot pressing mold cavity 100a, the housing 20 is accommodated in the hot pressing mold cavity 100a, the two side mold bodies can move relatively toward the outer side surface of the housing 20 and wrap the housing 20, so as to attach the flexible layer to the outer side surface of the housing 20, and bend a flexible layer at an edge of the open end of the housing 20 toward one side of the accommodating cavity 20a to form a flange 31; the end face forming module comprises an upper hot-pressing die 115, wherein the upper hot-pressing die 115 can move up and down towards the accommodating cavity 20a of the shell 20 and partially extends into the accommodating cavity 20a so as to press the flanging 31 into the accommodating cavity 20a and attach the flanging 31 to the cavity side wall of the accommodating cavity 20 a.
The hot pressing mold 100 of the present invention includes a mold frame, and an end surface forming module and a side surface forming module which are installed on the mold frame, wherein the side surface forming module is installed on the outer side surface of the housing 20 and is used for laminating the flexible layer on the outer side surface of the housing 20, the end surface forming module is installed above the opening end of the housing 20 and is used for bending the edge flexible layer of the housing 20 to form a flange 31, and the flange 31 is pressed on the inner side wall of the housing 20.
Specifically, the side forming module includes two opposite side mold bodies, in this embodiment, one of the side mold bodies is a hot pressing front mold 111, and the other side mold body is a hot pressing rear mold 112, the hot pressing front mold 111 and the hot pressing rear mold 112 can move relatively and enclose to form a hot pressing mold cavity 100a, the end forming module includes an upper hot pressing mold 115, and the upper hot pressing mold 115 can move up and down toward the housing 20.
The flexible layer in this embodiment is a fabric 30 that protects the casing 20 and forms an appearance surface of the casing 20, and the casing 20 is a casing of the sound box, it is understood that the flexible layer may also be a protective film, and the protective film and the fabric 30 may be made of silk floss, nylon yarn, plastic, metal wire, metal mesh plate, and the like, and are not limited specifically herein. In addition, the side mold body includes a body 120 and a protrusion structure 130, the body 120 has a profile attached to the outer side of the housing 20, the protrusion structure 130 is protruded from the profile, the protrusion structure 130 extends toward one side of the housing 20 accommodating cavity 20a, that is, protrudes toward one side of the hot-pressing mold cavity 100a, the protrusion structure 130 is continuously disposed, and a line extending on the profile fits the edge of the housing 20, so that when the side mold body moves toward the housing 20, the protrusion structure 130 can push the redundant flexible layer at the edge of the housing 20 toward the accommodating cavity 20a to bend the same, and form the flange 31.
The hot press mold 100 specifically moves as follows: the outer side of the shell 20 is wrapped with the flexible layer in advance, after the shell 20 wrapped with the flexible layer is placed in the hot pressing mold cavity 100a, the hot pressing mold 100 starts to close the mold, the hot pressing front mold 111 and the hot pressing rear mold 112 move towards the outer side of the shell 20, the protruding structure 130 pushes the flexible layer at the edge of the shell 20 towards the inner side of the shell 20 to form a flanging 31, the molded surface of the body 120 is attached to the outer side of the shell 20, the hot pressing upper mold 115 moves towards one side of the containing cavity 20a of the shell 20, the flanging 31 is pushed into the containing cavity 20a and attached to the cavity side wall of the containing cavity 20a, namely the inner side of the shell 20.
As can be seen from the above processes, while the hot press forming of the flexible layer on the outer side surface of the housing 20 is realized, the hot press mold 100 of the present invention can laminate and hide the redundant flexible layer on the edge on the inner side wall of the housing 20 through the cooperation of the hot press front mold 111, the hot press rear mold 112 and the hot press upper mold 115, so that the redundant flexible layer on the edge does not need to be manually trimmed after the hot press forming of the housing 20 and the flexible layer, thereby realizing the one-step forming of the flexible layer on the outer side surface of the housing 20, and greatly improving the efficiency and quality of the flexible layer forming.
Meanwhile, as can be seen from the above working process, the hot pressing mold 100 of the present invention has a good effect on the shell 20 with an opening, and the shell 20 may be open at one end or open at both ends, which is not limited herein.
It should be noted that the adhesive force of the flexible layer attached to the outer side of the housing 20 comes from the melted soft adhesive layer on the housing 20, in this embodiment, the housing 20 is made of at least two plastic materials, the main body of the housing 20 is made of ABS, the soft adhesive material for adhering the flexible layer is TPU, and since the melting point of TPU is lower than ABS, the soft adhesive material is melted to attach the flexible layer to the outer side of the housing 20 during the hot press molding process, and the housing 20 can be prevented from being deformed due to heating. In addition, the hot pressing mold 100 further includes a heating device for heating the side surface forming module and the end surface forming module, and the heating device is configured to heat the hot pressing front mold 111, the hot pressing rear mold 112, and the hot pressing upper mold 115 to a predetermined temperature, which is not described in detail herein.
Referring to fig. 4, further, the side mold body includes a body 120 and a protrusion structure 130 connected to the body 120, where the protrusion structure 130 extends a length L toward the accommodating cavity 20a, and L is greater than or equal to 0.6mm and less than or equal to 1.0 mm.
The distance from the outer side surface of the hot pressing upper die 115 partially extending into the accommodating cavity 20a to the inner side wall of the shell 20 is d1, and d1 is more than or equal to 0.1mm and less than or equal to 0.3 mm;
and/or, the distance from the outer side surface of the upper hot pressing mold 115 partially exposed out of the accommodating cavity 20a to the protrusion structure 130 is d2, and d2 is greater than or equal to 0.5mm and less than or equal to 1.0 mm.
Referring to fig. 5, in the present embodiment, the housing 20 is hollow and has a containing cavity 20a with two open ends, the shape of the containing cavity is a kidney-shaped hole, the wall of the housing 20 is 1.5mm, the edge of the housing 20 is provided with a 0.5mm round angle, and the thickness of the fabric 30 is between 0.5mm and 1.0mm, based on this, the height of the protrusion structure 130 protruding to one side of the housing 20 on the molded surface, that is, the length of the protrusion structure 130 extending on the body 120 is L, and L is greater than or equal to 0.6mm and less than or equal to 1.0 mm. Because under the compound die state, the profile of side form body is laminated in the surface of covering cloth 30 completely, consequently protruding structure 130 extends the length should be more than or equal to 0.6mm, can guarantee that protruding structure 130 is buckled the covering cloth 30 at casing 20 edge towards casing 20 inboard completely to avoid the fillet with its jack-up, influence hot briquetting effect. The reason why the height of the protruding structure 130 is less than or equal to 1.0mm is to avoid that the hot pressing upper die 115 collides with the side die body when the hot pressing die 100 is closed due to machining tolerance, which affects subsequent use.
Moreover, in order to ensure that the turned-over edge 31 of the covering cloth 30 can be completely attached to the outer side surface of the shell 20, the cross section of the protruding structure 130 is arc-shaped, the radian of the arc and the fillet at the edge of the shell 20 are arranged in a concentric circle, so that when the die is closed, the covering cloth 30 at the edge can be completely attached to the fillet at the edge of the shell 20, the tearing of the covering cloth 30 is avoided, and the hot-press forming effect is ensured.
It is understood that the height of the protruding structure 130 is specifically set according to the thickness of the housing 20, for example: the thickness of the shell 20 is 3.0mm, the fillet of the edge of the shell 20 is 1.0mm, and when the thickness of the masking cloth 30 is 1.0mm, the length of the protruding structure 130 extending on the body 120 should be at least greater than 2.0mm, so as to ensure that the protruding structure 130 can bend the masking cloth 30 completely towards the inner side of the shell 20.
In the mold closing state, the hot pressing upper mold 115 partially extends into the accommodating cavity 20a of the housing 20, the outline of the hot pressing upper mold 115 is arranged according to the shape of the accommodating cavity 20a in a copying manner, and the whole shape is retracted inwards by 0.1mm-0.3mm, namely, the distance between the outer side surface of the hot pressing upper mold 115 extending into the accommodating cavity 20a and the inner side wall of the housing 20 is d1, and d1 is more than or equal to 0.1mm and less than or equal to 0.3mm, so that the phenomenon that the flanging 31 is torn by the joint extrusion action of the hot pressing upper mold 115 and the housing 20 when the hot pressing upper mold 115 pushes the flanging 31 into the accommodating cavity 20a can be avoided, and meanwhile, the phenomenon that the flanging 31 is always attached to the inner side wall of the housing 20 in the hot pressing process of the covering cloth 30 can be ensured, so as to ensure the quality of the hot pressing. Meanwhile, the distance from the outer side surface of the hot-pressing upper die 115 exposed in the accommodating cavity 20a to the protrusion structure 130 is d2, and d2 is greater than or equal to 0.5mm and less than or equal to 1.0mm, so that the hot-pressing upper die 115 and the side die body can not collide with each other during die assembly, and the hot-pressing upper die 115 covers the hot-pressing die cavity 100a to form a relatively closed space, thereby avoiding heat loss during hot-pressing forming, enabling the hot-pressing forming temperature to be close to the die temperature to the maximum extent, and ensuring the hot-pressing forming effect.
Further, the housing 20 has a containing cavity 20a with two open ends, the side molding module includes four side mold bodies, the four side mold bodies surround to form the hot pressing mold cavity 100a, the housing 20 is contained in the hot pressing mold cavity 100a, the four side mold bodies can relatively move towards the outer side of the housing 20 and cover the housing 20, so as to laminate the flexible layer on the outer side of the housing 20, and bend the flexible layer at the end edges of the two open ends of the housing 20 towards one side of the containing cavity 20a to form a flange 31;
the end face forming module further comprises a hot pressing lower die 116 arranged below the four side die bodies, the hot pressing lower die 116 and the hot pressing upper die 115 can respectively move up and down towards the two open ends of the shell 20 and partially extend into the accommodating cavity 20a, so that the flanging 31 is pressed into the accommodating cavity 20a and attached to the cavity side wall of the accommodating cavity 20 a.
Referring to fig. 1 again, the side molding module in this embodiment is composed of four side mold bodies, the four side mold bodies 100 are respectively disposed on the front, rear, left, and right hot pressing front mold 111, the rear hot pressing rear mold 112, the left hot pressing mold 113, and the right hot pressing right mold 114 of the mold frame, the hot pressing mold cavity 100a is formed by enclosing the four side mold bodies, the end molding module further includes a lower hot pressing mold 116, and the moving processes of the front hot pressing mold 111, the rear hot pressing rear mold 112, the left hot pressing mold 113, the right hot pressing right mold 114, the upper hot pressing mold 115, and the lower hot pressing mold 116 refer to the two side mold bodies and the upper hot pressing mold 115, which will not be described in detail herein.
It can be understood that, by adding the hot pressing lower mold 116, the hot pressing mold 100 of the present application can perform a flexible layer hot pressing process on the housing 20 with openings at both ends, thereby improving the compatibility of the hot pressing mold 100. Meanwhile, since the outer side surfaces of the different shells 20 have different shapes, the side surface forming module can be divided into a plurality of side mold bodies for more convenient processing and hot press forming. In this embodiment, since the outer shape of the housing 20 is a kidney-shaped hole, the side molding module is divided into four side mold bodies and disposed in four directions, and the four side mold bodies respectively correspond to two straight sides and two arc sides of the housing 20, so that the complicated outer shape of the housing 20 is divided into a plurality of simple mold bodies and processed respectively, and thus, the processing is simpler than that of only two side mold bodies. Of course, the number of the side mold bodies can be specifically set according to the size and the shape of the hot press molding housing 20, and will not be described in detail herein.
When the hot-pressing mold 100 is in a mold closing state, two adjacent side molds in the four side molds are in clearance fit, and the flexible layer forms a hot-pressing mold dividing line on the surface of the shell 20, wherein the width of the hot-pressing mold dividing line is D1, and D1 is not less than 1mm and not more than 3 mm.
Referring to fig. 2 again, in order to achieve a better hot press forming effect, when the hot press mold 100 is in a mold closing state, the molded surfaces of the hot press front mold 111, the hot press rear mold 112, the hot press left mold 113, and the hot press right mold 114 are respectively attached to the surface of the covering cloth 30, and the covering cloth 30 is pressed and attached to the surface of the housing 20, at this time, the adjacent two side mold bodies are in clearance fit, that is, the side surfaces of the adjacent two side mold bodies are not attached to each other, and a hot press mold parting line is formed on the outer side surface of the housing 20, so that the covering cloth 30 wrapped on the outer side surface of the housing 20 is prevented from being extruded by the two adjacent side mold bodies to form a bonding line with an obvious trace, and the hot press mold parting line enables the covering cloth 30 to have a certain extending space, thereby ensuring the beauty of the hot press forming of the covering cloth 30. In this embodiment, in order to achieve the best hot-press forming effect, the width of the hot-press die parting line is D1, D1 is greater than or equal to 1mm and less than or equal to 3mm, so that not only is it ensured that the adjacent two side die bodies do not form an obvious joint line when the dies are closed, but also the masking cloth 30 and the shell 20 have the largest bonding area, and the masking cloth 30 is bonded on the shell 20 more stably.
Further, the hot pressing mold 100 further includes a transverse driving device 150 and a longitudinal driving device 160, and the longitudinal driving device 160 is connected to the two side mold bodies and drives the two side mold bodies to reciprocate in the horizontal direction.
The longitudinal driving device 160 is connected to the hot pressing upper mold 115, and drives the hot pressing upper mold 115 to move up and down in a vertical direction.
Referring to fig. 8, specifically, the transverse driving device 150 is a linear module, the number of the linear modules in this embodiment is four, the four side mold bodies are respectively connected to the four linear modules, and the four linear modules drive the four side mold bodies to reciprocate relative to the housing 20; vertical drive arrangement 160 is two cylinders, and mould 115 and hot pressing lower mould 116 are installed respectively in the output of cylinder on the hot pressing, and mould 115 and hot pressing lower mould 116 are the elevating movement on the cylinder drive hot pressing, and it can be understood, owing to adopt linear module and cylinder drive's mode, consequently can reach the effect in control compound die clearance through the motion of the linear module of control and the reach of cylinder, and it is comparatively convenient to operate.
Referring to fig. 6 to 8, the present invention further provides a flexible layer forming apparatus 10, where the flexible layer forming apparatus 10 includes a frame 300, and a hot pressing mold 100 and a cold holding mold 200 mounted on the frame 300, and the specific structure of the hot pressing mold 100 refers to the above embodiments, and the flexible layer forming apparatus 10 adopts all technical solutions of all the above embodiments, so that the flexible layer forming apparatus at least has all beneficial effects brought by the technical solutions of the above embodiments, and is not described herein any more, where the cold holding mold 200 is disposed opposite to the hot pressing mold 100, the shell 20 wrapping the flexible layer is hot-pressed and formed on the outer side surface of the shell 20 through the hot pressing mold 100, and then the cold holding mold 200 holds the pressure for a certain time to obtain a finished product, thereby achieving automation of flexible layer forming and further improving efficiency of flexible layer forming.
The cold pressure maintaining mold 200 comprises a side pressure maintaining module, the side pressure maintaining module comprises at least two side pressure maintaining mold bodies which are oppositely arranged, the at least two side pressure maintaining mold bodies form a pressure maintaining mold cavity 200a, the hot press molding shell 20 is accommodated in the pressure maintaining mold cavity 200a, and the two side pressure maintaining mold bodies can relatively move towards the outer side surface of the hot press molding shell 20 so as to attach the flexible layer to the shell 20; and the end face pressure maintaining module comprises a cold pressure maintaining upper die 215, and the cold pressure maintaining upper die 215 can move up and down towards the accommodating cavity 20a of the shell 20 and partially extend into the accommodating cavity 20a so as to laminate the flexible layer on the inner side wall of the shell 20.
The side pressure maintaining module includes four side pressure maintaining mold bodies, the four side pressure maintaining mold bodies surround to form the pressure maintaining mold cavity 200a, the hot press molding shell 20 is accommodated in the pressure maintaining mold cavity 200a, and the four side pressure maintaining mold bodies can move relatively towards the outer side surface of the hot press molding shell 20.
The end face pressure maintaining module comprises a cold pressure maintaining lower die 216, and the cold pressure maintaining lower die 216 can move up and down towards the hot press forming shell 20.
The four side pressure maintaining mold bodies, the cold pressure maintaining upper mold 215 and the cold pressure maintaining lower mold 216 cooperate to maintain pressure of the hot press molding shell 20 with openings at both ends.
Referring to fig. 9 to 10, in the present embodiment, the cold pressure maintaining mold 200 includes a side pressure maintaining module and an end pressure maintaining module, when the housing 20 is hot-pressed, the flexible layer is attached to the outer side surface of the housing 20 through the molten adhesive on the surface of the housing 20, at this time, the housing 20 is placed in the pressure maintaining mold cavity 200a, the side pressure maintaining module is located on the outer side surface of the housing 20, and the end pressure maintaining module is located above the opening end of the housing 20 and is respectively used for performing pressure maintaining treatment on the outer side surface and the end surface of the hot-pressed housing 20, the side pressure maintaining module and the end pressure maintaining module are respectively attached to the flexible layer for a certain time, and after the molten adhesive on the surface of the housing 20 is cooled to room temperature, the pressure maintaining treatment is completed.
Specifically, the side pressure maintaining module includes four side pressure maintaining mold bodies, the four side pressure maintaining mold bodies are respectively a cold pressure maintaining front mold 211, a cold pressure maintaining rear mold 212, a cold pressure maintaining left mold 213, and a cold pressure maintaining right mold 214, the four side pressure maintaining mold bodies enclose to form a pressure maintaining mold cavity 200a and wrap the housing 20, and are used for performing pressure maintaining processing on the housing 20 after hot press molding, the end pressure maintaining module includes a cold pressure maintaining upper mold 215 and a cold pressure maintaining lower mold 216, and a specific motion process of the cold pressure maintaining mold 200 is the same as a motion process of the hot press mold 100, which is not described in detail herein.
It can be understood that the mold temperature of the cold pressure maintaining mold 200 is normal temperature, and the shell 20 can avoid the shrinkage of the soft rubber on the shell 20 after hot press molding through the pressure maintaining effect of the cold pressure maintaining mold 200, so that the masking cloth 30 generates wrinkles, and the attractiveness of the finished product is ensured.
The outer side wall of the cold pressure maintaining upper die 215, which partially extends into the accommodating cavity 20a, is in interference fit with the inner side wall of the hot press forming shell 20, wherein the tolerance of the interference fit is d3, and d3 is not less than 0.1mm and not more than 0.2 mm.
Referring to fig. 11, in the present embodiment, different from the hot-pressing upper die 115, the outline of the cold pressure maintaining upper die 215 is the accommodating cavity 20a of the profiling housing 20 and extends outward by 0.1mm to 0.2mm, that is, the cold pressure maintaining upper die 215 and the housing 20 are in interference fit, the tolerance of the interference fit is d3, d3 is greater than or equal to 0.1mm and less than or equal to 0.2mm, specifically, when the cold pressure maintaining upper die 215 extends into the accommodating cavity 20a of the housing 20, the outer side wall of the cold pressure maintaining upper die 215 abuts against the flange 31, so that the elastic recovery of the fabric 30 can be avoided, and the molding quality of the fabric 30 and the housing 20 can be ensured.
Further, when the cold pressure maintaining mold 200 is in a mold closing state, two adjacent side pressure maintaining mold bodies are in clearance fit, and the flexible layer forms a pressure maintaining mold dividing line on the surface of the shell 20, wherein the distance from the pressure maintaining mold dividing line to the hot pressure mold dividing line is D2, and D2 is not less than 3mm and not more than 5 mm.
When the cold pressure maintaining mold 200 is in a mold closing state, two adjacent four pressure maintaining mold bodies are in clearance fit, that is, the side surfaces of the cold pressure maintaining front mold 211, the cold pressure maintaining rear mold 212, the cold pressure maintaining left mold 213 and the cold pressure maintaining right mold 214 are not attached to each other, the cold pressure maintaining front mold 211, the cold pressure maintaining rear mold 212, the cold pressure maintaining left mold 213 and the cold pressure maintaining right mold 214 form a pressure maintaining mold dividing line on the surface of the shell 20, the position of the pressure maintaining mold dividing line is different from that of the hot pressure mold dividing line, on one hand, the two times of molding and closing can be avoided at the same position, so that the covering cloth 30 forms an obvious mark on the surface of the shell 20, on the other hand, the distance from the pressure maintaining mold dividing line to the hot pressure mold line is D2, and the distance from the 3mm to D2 to 5mm, so that the mold closing clearance formed on the covering cloth 30 by the original side molding module can be flattened by using the molding surface of the side pressure maintaining mold bodies, and the quality of the appearance of the finished product can be further improved.
Further, the flexible layer forming apparatus 10 further includes a conveying device 400, the conveying device 400 includes a driving member and a clamping member connected to each other, the driving member is mounted on the frame 300, the clamping member is used for clamping the housing 20, and the driving member drives the clamping member to reciprocate between the hot pressing mold 100 and the cold holding pressure mold 200.
Referring to fig. 12, in the present embodiment, the conveying device 400 includes a driving member, a supporting plate, and a clamping member, the driving member may be a servo motor or a servo cylinder, the driving member is mounted on the frame 300 and connected to the supporting plate, and the clamping member is connected to the supporting plate and used for clamping the housing 20, when in actual use, the housing 20 is separated from the cavity 100a of the hot pressing mold by the clamping member after being hot pressed by the hot pressing mold 100, and then the housing 20 moves to the cold pressure maintaining mold 200 to perform pressure maintaining processing under the driving of the driving member, after pressure maintaining is completed, the clamping member clamps the housing 20 to separate from the pressure maintaining mold cavity 200a, and the housing is transported to a finished product area for recycling.
In another embodiment of the present invention, the transferring device 400 is a robot arm, and the robot arm grasps the housing 20 to reciprocate between the hot pressing mold 100, the cold holding mold 200 and the product area, so that the flexible layer forming apparatus 10 has higher working efficiency.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. An autoclave die for attaching a flexible laminate to an outer side of a housing having a receiving cavity with at least one end open, the autoclave die comprising:
the side forming module comprises at least two side die bodies which are oppositely arranged, the at least two side die bodies form a hot pressing die cavity, the shell is accommodated in the hot pressing die cavity, the two side die bodies can move towards the outer side surface of the shell relatively to attach the flexible layer to the outer side surface of the shell, and the flexible layer on the edge of the opening end of the shell is bent towards one side of the accommodating cavity to form a flanging; and
the end face forming module comprises a hot-pressing upper die, the hot-pressing upper die can move towards the accommodating cavity of the shell in a lifting mode, and partially extends into the accommodating cavity to press the flanging into the accommodating cavity and attach the flanging to the cavity side wall of the accommodating cavity in a pressing mode;
the side mold body comprises a body and a protruding structure connected to the body;
the shell is provided with a containing cavity with openings at two ends, the side forming module comprises four side die bodies, the four side die bodies surround to form the hot pressing model cavity, the shell is contained in the hot pressing model cavity, the four side die bodies can move towards the outer side face of the shell relatively to attach the flexible layer to the outer side face of the shell, and the flexible layer at the edges of the openings at two ends of the shell is bent towards one side of the containing cavity to form a flanging;
the end face forming module comprises a lower hot-pressing die, the lower hot-pressing die and the upper hot-pressing die can respectively move up and down towards the accommodating cavity of the shell, and partially extend into the accommodating cavity to press the flanging into the accommodating cavity and press the flanging onto the cavity side wall of the accommodating cavity;
when the hot-pressing mold is in a mold closing state, the four side mold bodies are respectively attached to the surface of the flexible layer, the flexible layer is attached to the surface of the shell, at the moment, the two adjacent side mold bodies are in clearance fit, namely, the side surfaces of the two adjacent side mold bodies are not attached to each other, and a hot-pressing mold parting line is formed on the outer side surface of the shell;
the width of the hot-pressing die parting line is D1, and D1 is more than or equal to 1mm and less than or equal to 3 mm.
2. The hot-pressing mold as claimed in claim 1, wherein the protrusion structure extends to a side of the accommodating cavity by a length L, and L is greater than or equal to 0.6mm and less than or equal to 1.0 mm.
3. The hot-pressing die as claimed in claim 2, wherein the distance from the outer side surface of the upper hot-pressing die partially extending into the accommodating cavity to the inner side wall of the shell is d1, and d1 is more than or equal to 0.1mm and less than or equal to 0.3 mm;
and/or the distance from the outer side surface of the hot-pressing upper die partially exposed out of the accommodating cavity to the protruding structure is d2, and d2 is more than or equal to 0.5mm and less than or equal to 1.0 mm.
4. A flexible layer forming apparatus comprising a frame, and a hot press mold and a cold pressure holding mold mounted to the frame, wherein the hot press mold is the hot press mold according to any one of claims 1 to 3, and the cold pressure holding mold is disposed corresponding to the hot press mold to hold a pressure of a housing to be hot press formed.
5. The flexible layer forming apparatus of claim 4, wherein the cold dwell die comprises:
the side pressure maintaining module comprises at least two side pressure maintaining mold bodies which are oppositely arranged, the at least two side pressure maintaining mold bodies form a pressure maintaining mold cavity, the hot-press formed shell is accommodated in the pressure maintaining mold cavity, and the two side pressure maintaining mold bodies can move relatively towards the outer side surface of the hot-press formed shell so as to enable the flexible layer to be attached to the outer side surface of the shell;
the end face pressure maintaining module comprises a cold pressure maintaining upper die, the cold pressure maintaining upper die can move towards the accommodating cavity of the shell and move up and down, and part of the cold pressure maintaining upper die extends into the accommodating cavity, so that the flanging is attached to the inner side wall of the shell.
6. The flexible layer forming apparatus according to claim 5, wherein an outer sidewall of the upper mold for cold pressure maintaining partially protruding into the receiving cavity and an inner sidewall of the housing formed by hot pressing are in interference fit, wherein a tolerance of the interference fit is d3, and d3 is greater than or equal to 0.2 mm.
7. The apparatus according to claim 5 or 6, wherein the side pressure maintaining module comprises four side pressure maintaining mold bodies, four side pressure maintaining mold bodies surround to form the pressure maintaining mold cavity, the hot press-formed housing is accommodated in the pressure maintaining mold cavity, and four side pressure maintaining mold bodies can move relatively towards the outer side of the hot press-formed housing;
the end face pressure maintaining module comprises a cold pressure maintaining lower die, and the cold pressure maintaining lower die can move towards the hot-press formed shell in a lifting mode;
and fourthly, matching the side pressure maintaining die body, the cold pressure maintaining upper die and the cold pressure maintaining lower die to maintain the pressure of the hot-press formed shell.
8. The apparatus of claim 7, wherein when the cold holding die is in a closed state, two adjacent side holding die bodies are in clearance fit, and the flexible layer forms a holding die parting line on the outer side surface of the hot press formed housing, wherein the distance from the holding die parting line to the hot press die parting line is D2, and 3mm < D2 < 5 mm.
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| CN201910454721.2A CN110154278B (en) | 2019-05-28 | 2019-05-28 | Hot-pressing die and flexible layer forming equipment |
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| CN110154278B true CN110154278B (en) | 2022-05-31 |
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Citations (3)
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|---|---|---|---|---|
| EP3085467A1 (en) * | 2015-04-20 | 2016-10-26 | Aweba Werkzeugbau Gmbh Aue | Method and tool for the outer edge flanging of flat or moulded sheet metal parts |
| CN109435122A (en) * | 2018-12-11 | 2019-03-08 | 深圳市光和精密自动化有限公司 | A kind of six face press equipments suitable for screen cloth heat pressing process |
| CN109760328A (en) * | 2019-02-20 | 2019-05-17 | 苏州德力克斯自动化精机有限公司 | Automobile side automatic cuffing mechanism of luxurious sunshading board complete cycle |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3085467A1 (en) * | 2015-04-20 | 2016-10-26 | Aweba Werkzeugbau Gmbh Aue | Method and tool for the outer edge flanging of flat or moulded sheet metal parts |
| CN109435122A (en) * | 2018-12-11 | 2019-03-08 | 深圳市光和精密自动化有限公司 | A kind of six face press equipments suitable for screen cloth heat pressing process |
| CN109760328A (en) * | 2019-02-20 | 2019-05-17 | 苏州德力克斯自动化精机有限公司 | Automobile side automatic cuffing mechanism of luxurious sunshading board complete cycle |
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