CN110315682B - Card holds in palm injection mold - Google Patents
Card holds in palm injection mold Download PDFInfo
- Publication number
- CN110315682B CN110315682B CN201910688756.2A CN201910688756A CN110315682B CN 110315682 B CN110315682 B CN 110315682B CN 201910688756 A CN201910688756 A CN 201910688756A CN 110315682 B CN110315682 B CN 110315682B
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- clamping
- cap
- mold
- piece
- die
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- 238000002347 injection Methods 0.000 title claims abstract description 28
- 239000007924 injection Substances 0.000 title claims abstract description 28
- 239000000463 material Substances 0.000 claims abstract description 71
- 238000007493 shaping process Methods 0.000 claims abstract description 3
- 239000007788 liquid Substances 0.000 claims description 22
- 239000003292 glue Substances 0.000 abstract description 52
- 239000000243 solution Substances 0.000 abstract description 29
- 230000002950 deficient Effects 0.000 abstract description 7
- 239000012634 fragment Substances 0.000 abstract description 5
- 238000001746 injection moulding Methods 0.000 description 14
- 238000000465 moulding Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000004026 adhesive bonding Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000000109 continuous material Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14065—Positioning or centering articles in the mould
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2602—Mould construction elements
-
- 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
- B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
- B29L2031/3406—Components, e.g. resistors
-
- 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
- B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
- B29L2031/3431—Telephones, Earphones
- B29L2031/3437—Cellular phones
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a clamping support injection mold, which comprises an upper mold and a lower mold, wherein the upper mold comprises an upper mold base, a panel, a movable mold plate and a front mold core, the lower mold comprises a lower mold base, an ejector plate, a supporting piece, a fixed mold plate and a rear mold core, the rear mold core is provided with a mold groove and a material belt, the material belt is provided with a clamping support bearing piece, the clamping support bearing piece is provided with a through hole and a limiting elastic piece, the clamping support bearing piece is provided with a first clamping cap groove and a second clamping cap groove, the first clamping cap groove is used for inserting one end of an external clamping cap, the second clamping cap groove is used for inserting the other end of the external clamping cap, and the limiting elastic piece is used for being abutted against the external clamping cap. Above-mentioned card holds in palm injection mold is fixed a position the card cap through first card cap groove and first card cap groove to utilize spacing shell fragment to support tight card cap, the card cap location is accurate, is difficult for rocking the skew, has guaranteed to bond in the card cap after the glue solution shaping, thereby guarantees the quality of product, reduces the defective percentage of product.
Description
Technical Field
The invention relates to the technical field of molds, in particular to a clamping injection mold.
Background
The card holder is special equipment for adapting the standard interface of the small card and the electronic equipment, and the problem that the size of the traditional SIM card is inconsistent with the standard interface size is solved by using the card holder, so that the related information of a plurality of SIM cards with different models can be read through the standard interface of one equipment, and the sharing and intercommunication of the information are realized. At present, the production of the clamping support mainly adopts mold injection molding, specifically, hot liquid flows to a continuous material belt of a mold core through a gate of the mold, so that the clamping support with a preset shape is cast on a mold of the material belt. The card support is manufactured through the die, so that the production efficiency of the card support is greatly improved, and the market competitiveness of the product is further improved.
However, when the traditional clamping support processing mould is used for carrying out injection molding on the clamping support, the clamping cap position on the continuous material belt is easy to deviate, so that glue solution in the mould cavity cannot be adhered to the clamping cap, the quality of the clamping support is reduced, and the defective rate of products is increased.
Disclosure of Invention
Based on the above, it is necessary to provide a clamping support injection mold aiming at the technical problem of inaccurate positioning of the clamping cap.
The clamping injection mold comprises an upper mold and a lower mold, wherein the upper mold comprises an upper mold base, a panel, a movable mold plate and a front mold core, the upper mold base, the panel and the movable mold plate are sequentially stacked and connected, the front mold core is connected with the movable mold plate, the upper mold is provided with a hot liquid channel, and the hot liquid channel penetrates through the upper mold base, the panel, the movable mold plate and the front mold core. The lower die comprises a lower die holder, an ejector plate, a supporting piece, a fixed die plate and a rear die core, wherein the lower die holder, the ejector plate and the fixed die plate are sequentially stacked and connected, one end of the supporting piece is connected with the lower die holder, the other end of the supporting piece is connected with the fixed die plate, the rear die core is arranged on the fixed die plate and corresponds to the front die core, a die groove is formed in the rear die core, the die groove is communicated with a hot liquid channel, the die groove is provided with an opening, a material belt is further arranged on the rear die core, a clamping support supporting piece is arranged on the material belt, a through hole is formed in the clamping support supporting piece, the through hole is communicated with the die groove, a limiting elastic piece is arranged on the clamping support supporting piece, a first clamping cap groove and a second clamping cap groove are formed in the clamping support supporting piece, the first clamping cap groove is used for being inserted with one end of an external clamping cap, the second clamping cap groove is used for being inserted with the other end of the external clamping cap, the limiting elastic piece is used for being abutted with the external clamping cap, the opening is used for supporting the external clamping cap, the external clamping cap groove, the die cavity and the hot liquid is formed jointly.
In one embodiment, the clamping support bearing piece is provided with a first limiting piece and a second limiting piece respectively, the first limiting piece and the second limiting piece are inserted into the model groove respectively, and the first limiting piece and the second limiting piece are jointly used for clamping the molded clamping support.
In one embodiment, the rear mold core is provided with a material belt positioning piece, a material belt is provided with a limiting hole, and the material belt positioning piece penetrates through the limiting hole and is connected with the material belt.
In one embodiment, the depth of the first card cap slot is greater than the depth of the second card cap slot.
In one embodiment, the limiting elastic sheet is disposed at a central portion of a connecting line between the first clip cap groove and the second clip cap groove.
In one embodiment, the limiting elastic piece comprises a transverse limiting part and a longitudinal limiting part, the transverse limiting part is connected with the longitudinal limiting part, the transverse limiting part is used for being abutted against the clamping cap, and the longitudinal limiting part is abutted against the clamping cap and is perpendicular to the transverse limiting part.
In one embodiment, the fixed die plate is further provided with a row position, and the tail end of the row position is abutted against the external clamping cap.
In one embodiment, a movable insert is arranged on the rear mold core, and the movable insert penetrates through the rear mold core and is connected with the fixed mold plate.
In one embodiment, the lower die further comprises a thimble, one end of the thimble is connected with the thimble plate, and the other end of the thimble is inserted into the mold groove.
In one embodiment, the fixed die plate is provided with a blanking port.
Above-mentioned card holds in palm injection mold, through set up first card cap groove and fix a position the card cap on the material area to utilize spacing shell fragment to support tight card cap, the card cap is accurate in the location on the material area, is difficult for rocking the skew, can make the card cap support all the time and locate the opening part in model groove, in order to guarantee glue solution shaping back bonding in the card cap, thereby guarantee the quality of product, reduce the defective percentage of product.
Drawings
FIG. 1 is a schematic diagram of a card holder injection mold in one embodiment;
FIG. 2 is a schematic diagram of another view of a clip-on injection mold according to one embodiment;
FIG. 3 is a schematic view of a cross-section A-A of the injection mold of the card holder in the embodiment shown in FIG. 2;
FIG. 4 is a schematic view of a B-B section of the injection mold of the card holder in the embodiment shown in FIG. 2;
FIG. 5 is a schematic diagram of the lower die in one embodiment;
FIG. 6 is a schematic view of a partial enlarged structure of the lower die in the embodiment shown in FIG. 5;
FIG. 7 is a schematic diagram showing the positional relationship between the card holder receiver and the card cap in one embodiment;
fig. 8 is a schematic structural view of a card holder socket according to another embodiment.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.
Referring to fig. 1 to 7, the present invention provides a card support injection mold 10, wherein the card support injection mold 10 includes an upper mold 100 and a lower mold 200, the upper mold 100 includes an upper mold base 110, a panel 120, a movable mold plate 130 and a front mold core 140, the upper mold base 110, the panel 120 and the movable mold plate 130 are sequentially stacked and connected, the front mold core 140 is connected with the movable mold plate 130, the upper mold 100 has a hot liquid channel 150, and the hot liquid channel 150 penetrates through the upper mold base 110, the panel 120, the movable mold plate 130 and the front mold core 140. The lower die 200 comprises a lower die holder 210, an ejector plate 220, a supporting piece 230, a fixed die plate 240 and a rear die insert 250, wherein the lower die holder 210, the ejector plate 220 and the fixed die plate 240 are sequentially stacked and connected, one end of the supporting piece 230 is connected with the lower die holder 210, the other end of the supporting piece 230 is connected with the fixed die plate 240, the rear die insert 250 is arranged on the fixed die plate 240 and corresponds to the front die insert 140, a model groove 251 is formed in the rear die insert 250, the model groove 251 is communicated with the hot liquid channel 150, the model groove 251 is provided with an opening, a material belt 260 is further arranged on the rear die insert 250, a clamping support receiving piece 261 is arranged on the material belt 260, a through hole 261a is formed in the clamping support receiving piece 261, the through hole 261a is communicated with the model groove 251, a clamping support receiving piece 261 is provided with a limiting elastic piece 261b, a first clamping cap groove 261c and a second clamping cap groove 261d are formed in the clamping support piece 261, the first clamping cap groove 261c is used for inserting one end of an external clamping cap, the second clamping cap 300 d is used for inserting the other end of the external clamping cap 300, the limiting 261b is used for propping against the external clamping cap 300 and is used for being matched with the opening of the external clamping cap 300 and is used for receiving the front die insert 300, and is used for receiving the hot liquid, and the cavity is formed by the cavity and is commonly used for receiving the cavity.
According to the clamping support injection mold 10, the first clamping cap 300 groove 261c and the first clamping cap 300 groove 261c are formed in the material belt 260 to position the clamping cap 300, the limiting elastic piece 261b is utilized to tightly support the clamping cap 300, the clamping cap 300 is accurately positioned on the material belt 260 and is not easy to shake and deviate, the clamping cap 300 is always supported on the opening of the model groove 251, so that the clamping cap 300 is adhered to the clamping cap 300 after glue solution is formed, the quality of a product is guaranteed, and the defective rate of the product is reduced.
The working principle of the clamping injection mold is as follows: before the clamping and supporting injection molding operation, the limiting elastic piece 261b is jacked up, two ends of the clamping cap 300 are respectively inserted into the first clamping cap 300 groove 261c and the second clamping cap 300 groove 261d, then the external force acting on the limiting elastic piece 261b is removed, the limiting elastic piece 261b rebounds and is abutted against the clamping cap 300, so that the clamping cap 300 is mounted on the material belt 260, and then the clamping and supporting injection mold is clamped, so that the clamping cap 300 forms a cavity together with the mold groove 251 and the front mold core 140, and the glue solution is molded. After the clamping cap 300 is installed, molten plastic glue solution is introduced into the upper die 100, the glue solution enters the hot liquid channel 150, flows through the upper die base 110, the panel 120 and the movable die plate 130 in sequence, and flows into the cavity through the front die core 140 until the whole cavity is filled with the glue solution, so that the glue solution is molded and gradually hardened under the common constraint of the clamping cap 300, the die groove 251 and the front die core 140, and a clamping glue supporting piece is obtained. After the card holds in the palm the molding, the card holds in the palm injection mold die sinking, the front mould benevolence 140 is left the card and holds in the palm the glue piece promptly, through drawing the material area 260, make the material area 260 drive card hold in the palm glue piece and card cap 300 leave model groove 251, remove the restraint that model groove 251 to the card held in the palm the glue piece promptly, in this way, card holds in the palm glue piece and card cap 300 firmly adhere together, stir spacing shell fragment 261b this moment, make spacing shell fragment 261b and card cap 300's butt disconnection, can take off card hold in the palm glue piece and card cap 300 together from material area 260 to obtain the card and hold in the palm the finished product. It should be noted that, the card holds in the palm injection mold still includes fortune water pipe, and fortune water pipe sets up in back mould benevolence 250 and surrounds model groove 251, and fortune water pipe is used for inserting the cooling water and cools off the interior figurative card of die cavity holds in the palm gluey piece to improve the design effect of card hold in the palm gluey piece and the production efficiency of card hold in the palm.
The upper mold 100 is a die part of a clamping injection mold, that is, during the operation of the mold, the mold opening and closing operations of the mold are mainly realized by lifting and pressing the upper mold 100. In a specific production process, the upper die 100 is mounted on a slide block of a press, and then is driven by the press to approach or depart from the lower die 200, so that the clamping support is molded and unloaded. The upper die holder 110 is used for being connected with a slide block of an external press, and preferably, the upper die holder 110 is connected with the slide block of the external press through a die shank, so that the upper die 100 is connected with the external press. The upper die holder 110 is provided with a gate 111, and the gate 111 is communicated with the hot liquid channel 150, so that the molten glue solution of the injection molding machine is conveniently led into the hot liquid channel 150, and the glue solution can flow into the die cavity for molding. The panel 120 is used for supporting the movable mold plate 130 and the front mold core 140 together with the upper mold base 110, and prolonging the length of the hot liquid channel 150, that is, prolonging the heat dissipation time of the glue solution, thereby accelerating the heat dissipation of the glue solution and preventing the problem of poor product stability caused by overhigh mold temperature. The movable mold plate 130 is used for receiving the front mold core 140, so as to realize positioning and installation of the front mold core 140. The front mold core 140 is used to cooperate with the mold cap 300 and the mold groove 251 to form a cavity, and provides a molding place for glue solution, so as to facilitate forming a mold carrier.
The lower mold 200 is installed on a working table of the press, and is a fixed mold part of the clamping injection mold, and the lower mold 200 provides a molding place for the clamping glue piece, in other words, the lower mold 200 receives the glue solution flowing down from the hot liquid channel 150 and limits the glue solution to a specific mold space, so as to facilitate molding the glue solution. The lower die holder 210 is connected to a table or a backing plate of the press, and the lower die holder 210 is used for supporting the remaining plate layers of the lower die 200, thereby realizing the fixed installation of each plate layer of the lower die 200, and even the whole lower die 200, on the press.
The ejector plate 220 is used for installing the unloading assembly 400 of the die, so that the molded clamping glue piece and the clamping bracket are separated from the model groove 251, and the clamping bracket is easy to unload. In an embodiment, the ejector plate 220 has a first sub-plate 221, a second sub-plate 222 and a third sub-plate 223, the first sub-plate 221, the second sub-plate 222 and the third sub-plate 223 are sequentially stacked and arranged on the lower die holder 210, the second sub-plate 222 is provided with a first ejector pin hole 222a, the third sub-plate 223 is provided with a second ejector pin hole 223a, the first ejector pin hole 222a is communicated with the second ejector pin hole 223a, and the third sub-plate 223 is further provided with a wiring cushion block 224. The unloading assembly 400 comprises a thimble 410 and a seesaw 420, wherein one end of the thimble 410 is connected with the thimble plate 220, and the other end of the thimble 410 is inserted into the model groove 251. Preferably, the ejector pins 410 sequentially penetrate through the first ejector pin hole 222a and the second ejector pin hole 223a, one end of the ejector pin 410 is connected with the first sub-board 221, and the other end of the ejector pin 410 is inserted into the mold groove 251. The seesaw 420 is mounted on the lower die holder 210, one end of the seesaw 420 is connected with an external driving member, and the other end of the seesaw 420 is connected with the third sub-plate 223. When the mold is in a mold closing state, the seesaw 420 jacks up the third sub-plate 223 under the action of the external driving piece, so that the third sub-plate 223 drives the wiring cushion block 224 to move towards the fixed mold plate 240 until the wiring cushion block 224 is abutted against the fixed mold plate 240, the fixed mold plate 240 is lifted up under the thrust of the wiring cushion block 224, the distance between the fixed mold plate 240 and the lower mold seat 210 is increased, and the ejector pins 410 are separated from the mold grooves 251, so that the glue solution is molded into a clamping glue piece in the mold grooves 251. After the molding of the clamping and supporting glue piece is completed, the upper die 100 is far away from the lower die 200 under the action of the press, and the die is in an open state, at this time, the external driving piece controls the connection end of the seesaw 420 and the third sub-plate 223 to be pressed down, so that the third sub-plate 223 falls back under the action of gravity, and the thrust to the fixed die plate 240 and the rear die core 250 is released, that is, the fixed die plate 240 and the rear die core 250 fall back synchronously, and the ejector pins 410 are reinserted into the die grooves 251, so that the clamping and supporting glue piece is jacked up, and the separation of the clamping and supporting glue piece and the die grooves 251 is realized, so that the molded clamping and supporting can be removed from the die conveniently.
The support 230 is used for supporting the fixed platen 240 to realize the mounting and positioning of the fixed platen 240 on the lower die holder 210, and in addition, the support 230 is used for lifting the height of the fixed platen 240 to provide enough moving space for the wire cushion 224. The fixed mold plate 240 is used for installing the rear mold insert 250, so as to facilitate the cooperation of the rear mold insert 250 and the front mold insert 140. In one embodiment, the fixed die plate 240 is provided with a blanking port 241. Through offer blanking mouth 241 on fixed die plate 240, after the card holds in the palm injection moulding, loosen spacing shell fragment 261b to promote the card and hold in the palm the connector of gluing the piece and card cap 300, make this connector and the disconnection of material area 260, so, the card holds in the palm the connector of gluing the piece and card cap 300 receives the influence of gravity to drop at blanking mouth 241, so that collect the product. In an embodiment, the lower die holder 210 is provided with the first guide hole 211, the support member 230 is provided with the second guide hole 231, the fixed die plate 240 is provided with the guide groove 242, the lower die 200 is further provided with the guide post 270, the guide post 270 sequentially penetrates through the first guide hole 211 and the second guide hole 231 and is inserted into the guide groove 242, namely, the connection of the lower die holder 210, the support member 230 and the fixed die plate 240 is realized, and in the injection molding operation of the clamping support, the deflection of each plate layer of the lower die 200 is prevented, so that the front die core 140 and the rear die core 250 are difficult to align, and the quality of the clamping support glue piece and the effective performance of the injection molding operation of the clamping support are ensured.
The rear mold 250 is used for receiving glue solution and providing a molding place for the glue solution to process a clamping bracket finished product with a preset shape. It should be noted that, in an embodiment, the material belt 260 has a plurality of card support receiving members 261, so, when the production of the card support corresponding to one card support receiving member 261 on the material belt 260 is completed, only the material belt 260 needs to be dragged, so that the through holes 261a of the card support receiving members 261 on the material belt 260 are aligned with the model grooves 251, the injection molding operation of the next card support can be started, frequent loading and unloading of the material belt 260 is avoided, and the production efficiency of the card support is improved. In one embodiment, the material belt 260 is abutted against the rear mold 250, and the material belt 260 is intermittently moved relative to the rear mold 250 under the action of the external traction member. Preferably, the material belt 260 is in a ring structure, and the material belt 260 rotates around the lower die 200 under the action of an external traction member, so that the clamping cap 300 is only required to be arranged on the clamping support supporting member 261 on the material side of the material belt 260, the clamping support supporting member 261 provided with the clamping cap 300 is aligned with the model groove 251, the clamping cap 300 and the hot liquid channel 150 can flow down to glue the glue solution for molding, after the single clamping support is molded, the external traction member pulls the material belt 260 to move, so that the glue solution is beneficial to falling into the model groove 251 through the through hole 261a of the next clamping support supporting member 261, and the injection molding of the next clamping support is realized. It should be noted that, the distance of single movement of the material belt 260 is equal to the distance between two adjacent card support receivers 261, so that it can be ensured that the through holes 261a of the card support receivers 261 can be aligned with the mold grooves 251 after each movement of the material belt 260, so as to ensure the effective operation of card support injection molding.
Referring to fig. 5, 6 and 7, in an embodiment, the card holder supporting member 261 is provided with a first limiting member 261e and a second limiting member 261f, the first limiting member 261e and the second limiting member 261f are respectively inserted into the mold groove 251, and the first limiting member 261e and the second limiting member 261f are jointly used for clamping the formed card holder. In the process of clamping and supporting injection molding, the glue solution flows into the mold groove 251 through the hot liquid channel 150 and fills the whole cavity, then the glue solution is molded under the constraint of the cavity and is gradually solidified under the action of the cold water pipe, so that the edges of the clamping and supporting glue pieces are respectively abutted against the first limiting piece 261e and the second limiting piece 261f, and when the material belt 260 is pulled to move by external force, the clamping and supporting glue pieces leave the mold groove 251 under the constraint and the driving of the first limiting piece 261e and the second limiting piece 261f, so that the molded clamping and supporting glue pieces are conveniently removed from the material belt 260.
In an embodiment, the back mold 250 is provided with a material belt positioning member 280, and preferably, the material belt positioning member 280 is elastically connected with the back mold 250, the material belt 260 is provided with a limiting hole 262, and the material belt positioning member 280 penetrates through the limiting hole 262 and is connected with the material belt 260. By arranging the material belt positioning piece 280, the movement track of the material belt 260 can be limited, and the through hole 261a on the material belt 260 can be always aligned with the model groove 251, so that the qualified adhesive clamping piece can be molded in the cavity. After the single injection molding operation of the clamping support is finished, the ejector pins 410 jack up the clamping support glue piece, so that the material belt 260 connected with the clamping support glue piece is lifted, the material belt positioning piece 280 leaves the limiting holes 262, and the material belt 260 moves towards the blanking port 241 under the action of the external traction piece. In the moving process of the material belt 260, the material belt 260 generates pressure on the material belt positioning piece 280 to enable the material belt positioning piece 280 to be pressed downwards, when the limiting hole 262 on the material belt 260 moves to the position of the material belt positioning piece 280, the constraint of the material belt 260 on the material belt positioning piece 280 is released, the material belt positioning piece 280 resets and abuts against the edge of the limiting hole 262, further movement of the material belt 260 is prevented, the through hole 261a is guaranteed to be aligned with the model groove 251, and therefore positioning of the material belt 260 is achieved.
The first card cap 300 groove 261c and the second card cap 300 groove 261d are used for positioning the card cap 300 together, so that the card cap 300 is prevented from sliding on the material belt 260, and the processed card support glue piece and the connector formed by the card cap 300 are ensured to be consistent in size, so that the quality of a card support product is improved. It should be noted that, the conventional card cap 300 has a first plugging portion, a gluing portion and a second plugging portion, where the first plugging portion and the second plugging portion are respectively used for being abutted with the outer shell of the electronic device so as to implement the adaptation of the SIM card and the standard interface of the electronic device, and generally, the length of the first plugging portion is greater than that of the second plugging portion, so that a pinhole can be formed on the first plugging portion to facilitate the assembly and disassembly of the SIM card. The glue portion faces the mold groove 251, and the glue portion is used for limiting the flowing range of the hot liquid and is adhered and glued with the glue solution, so that the tight connection between the card support glue piece and the card cap 300 is realized. In one embodiment, the depth of the groove 261c of the first clip cap 300 is greater than the depth of the groove 261d of the second clip cap 300. Therefore, the problem of shaking of the clamping cap 300 caused by the gap connection of the clamping cap 300 and the material belt 260 can be eliminated, and the problem that the manufactured clamping support is difficult to push into a standard interface of electronic equipment due to the clamping error of the clamping cap 300 in the clamping process of the clamping cap 300 can be prevented, so that the quality of the clamping support is ensured.
The limiting elastic piece 261b is used for abutting against the clamping cap 300, so that the clamping cap 300 is prevented from being impacted by glue solution to deform, and the quality of a clamping product is further guaranteed. In one embodiment, the limiting elastic piece 261b is disposed at a central portion of a connecting line between the first clip cap 300 groove 261c and the second clip cap 300 groove 261 d. In the injection molding operation process of the card holder, when the glue solution impacts the card cap 300, the center part of the card cap 300 is far away from the joint of the first inserting part and the material belt 260 and the joint of the second inserting part and the material belt 260, so that the deformation amount of the center part of the card cap 300 is maximum, and the card cap 300 is easy to deform or even break at the center part thereof, thereby causing the defective rate of the card holder to be increased. By arranging the limiting elastic piece 261b at the central part of the connecting line between the first clamping cap 300 groove 261c and the second clamping cap 300 groove 261d, that is to say, the limiting elastic piece 261b is abutted against the central part of the clamping cap 300, so that the thrust of the limiting elastic piece 261b to the clamping cap 300 can offset the part impact force of glue solution to the clamping cap 300, the deformation amount of the clamping cap 300 can be reduced, the stability of the clamping cap 300 is improved, and the defective rate of the clamping support is reduced. Referring to fig. 8, in an embodiment, the limiting elastic piece 261b includes a lateral limiting portion 261g and a longitudinal limiting portion 261h, the lateral limiting portion 261g is connected with the longitudinal limiting portion 261h, the lateral limiting portion 261g is used for abutting against the clip cap 300, and the longitudinal limiting portion 261h abuts against the clip cap 300 and is perpendicular to the lateral limiting portion 261 g. That is, the limiting spring 261b can hold up the card cap 300 while reducing the deformation amount of the card cap 300, and prevent the card cap 300 from sliding off the material belt 260, so as to facilitate the bonding of the card cap 300 and the card support adhesive member to form a card support.
In order to further improve the connection stability between the clamping cap 300 and the material belt 260, in an embodiment, the fixed mold plate 240 is further provided with a row position 290, and the tail end of the row position 290 is abutted against the external clamping cap 300. By arranging the row position 290 on the fixed template 240 and enabling the tail end of the row position 290 to be abutted against the clamping cap 300, the impact of glue solution on the clamping cap 300 can be further counteracted, deformation of the clamping cap 300 is reduced, and accordingly the integrity of the clamping cap 300 is guaranteed, and the defective rate of clamping holders is reduced. In addition, under the pushing of the row position 290, the first inserting portion of the card cap 300 is abutted against the inner surface of the first card cap 300 groove 261c, and the second inserting portion of the card cap 300 is abutted against the inner surface of the second card cap 300 groove 261d, so that the stability of connection between the card cap 300 and the material belt 260 is strong, and the card cap 300 is not easy to fall off from the material belt 260, thereby ensuring the effective performance of the card support injection molding operation.
In one embodiment, the rear mold insert 250 is provided with a movable insert 252, and the movable insert 252 is inserted through the rear mold insert 250 and connected to the fixed mold plate 240. The movable insert 252 is used for connecting the rear mold insert 250 with the fixed mold plate 240, so as to realize the installation and fixation of the rear mold insert 250 on the fixed mold plate 240. By using the movable insert 252, when the rear mold insert 250 is damaged and fails or other plastic parts need to be processed, the movable insert 252 can be pulled out to replace or clean the rear mold insert 250, so that the loading and unloading operation of the rear mold insert 250 is simplified.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (8)
1. The upper die comprises an upper die base, a panel, a movable die plate and a front die core, wherein the upper die base, the panel and the movable die plate are sequentially stacked and connected, the front die core is connected with the movable die plate, the upper die is provided with a hot liquid channel, and the hot liquid channel penetrates through the upper die base, the panel, the movable die plate and the front die core; the lower die comprises a lower die holder, an ejector pin plate, a supporting piece, a fixed die plate and a rear die core, wherein the lower die holder, the ejector pin plate and the fixed die plate are sequentially stacked and connected, one end of the supporting piece is connected with the lower die holder, the other end of the supporting piece is connected with the fixed die plate, the rear die core is arranged on the fixed die plate and corresponds to the front die core, a model groove is formed in the rear die core and is communicated with the hot liquid channel, the model groove is provided with an opening, a material belt is further arranged on the rear die core and is provided with a clamping support bearing piece, a through hole is formed in the clamping support bearing piece, the through hole is communicated with the model groove,
the clamping support supporting piece is provided with a limiting elastic piece, the clamping support supporting piece is provided with a first clamping cap groove and a second clamping cap groove, the first clamping cap groove is used for inserting one end of an external clamping cap, the second clamping cap groove is used for inserting the other end of the external clamping cap, the limiting elastic piece is used for being abutted against the external clamping cap, the opening is used for supporting the external clamping cap, and the external clamping cap, the model groove and the front die core jointly form a die cavity which is used for supporting hot liquid and shaping the hot liquid; the clamping support bearing piece is provided with a first limiting piece and a second limiting piece respectively, the first limiting piece and the second limiting piece are inserted into the model groove respectively, and the first limiting piece and the second limiting piece are jointly used for clamping the molded clamping support; the back die core is provided with a material belt positioning piece, a limiting hole is formed in the material belt, and the material belt positioning piece penetrates through the limiting hole and is connected with the material belt.
2. The clip-on injection mold of claim 1, wherein the first clip-on cap slot has a depth greater than a depth of the second clip-on cap slot.
3. The clip injection mold of claim 1, wherein the limit spring is disposed at a center portion of a line connecting the first clip groove and the second clip groove.
4. The clip injection mold of claim 1, wherein the limiting spring piece comprises a transverse limiting portion and a longitudinal limiting portion, the transverse limiting portion is connected with the longitudinal limiting portion, the transverse limiting portion is used for being abutted against the clip cap, and the longitudinal limiting portion is abutted against the clip cap and is perpendicular to the transverse limiting portion.
5. The card support injection mold of claim 1, wherein the fixed mold plate is further provided with a row position, and the tail end of the row position is abutted against the external card cap.
6. The card support injection mold of claim 1, wherein the rear mold core is provided with a movable insert, and the movable insert penetrates through the rear mold core and is connected with the fixed mold plate.
7. The card holder injection mold of claim 1, wherein the lower mold further comprises a thimble, one end of the thimble is connected to the thimble plate, and the other end of the thimble is inserted into the mold groove.
8. The card support injection mold of claim 1, wherein the fixed die plate is provided with a blanking port.
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| CN201910688756.2A CN110315682B (en) | 2019-07-29 | 2019-07-29 | Card holds in palm injection mold |
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| CN110315682B true CN110315682B (en) | 2024-02-27 |
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