CN111559053A - Injection mold for manufacturing label injection products - Google Patents

Injection mold for manufacturing label injection products Download PDF

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Publication number
CN111559053A
CN111559053A CN202010377067.2A CN202010377067A CN111559053A CN 111559053 A CN111559053 A CN 111559053A CN 202010377067 A CN202010377067 A CN 202010377067A CN 111559053 A CN111559053 A CN 111559053A
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CN
China
Prior art keywords
plate
board
sprue
runner
product
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202010377067.2A
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Chinese (zh)
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CN111559053B (en
Inventor
毛勇
钟立中
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NINGBO SWELL INDUSTRY CO LTD
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NINGBO SWELL INDUSTRY CO LTD
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Priority to CN202010377067.2A priority Critical patent/CN111559053B/en
Publication of CN111559053A publication Critical patent/CN111559053A/en
Application granted granted Critical
Publication of CN111559053B publication Critical patent/CN111559053B/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • B29C45/33Moulds having transversely, e.g. radially, movable mould parts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • B29C45/27Sprue channels ; Runner channels or runner nozzles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/40Removing or ejecting moulded articles
    • B29C45/42Removing or ejecting moulded articles using means movable from outside the mould between mould parts, e.g. robots

Abstract

The invention discloses an injection mold for manufacturing injection products of labels, which comprises a cover plate and an A plate, the novel die comprises a plate B and a bottom plate, wherein a cover plate is fixedly connected with the plate A, a panel cavity is arranged between the plate A and the plate B, a main runner inlet is arranged on the plate A, a sub-runner is arranged on the plate B, the main runner inlet is communicated with the sub-runner through the main runner, the sub-runner is communicated with the panel cavity through a connecting hole, and a process pin forming hole is arranged on the sub-runner; the mold has no ejection system, and the maintenance frequency is improved from the original 5000 molds/time to 10000 molds/time.

Description

Injection mold for manufacturing label injection products
Technical Field
The invention relates to an injection mold, in particular to an injection mold for manufacturing injection products such as labels.
Background
The existing label injection molding products mainly comprise a label panel and a label bracket, the label panel and the label bracket are connected through a connecting column, the label injection molding products are generally required to be electroplated after injection molding, and therefore electroplating process feet are generally arranged on the label bracket, and a clamping column which upwards extends out of the label panel is also arranged on the label bracket. The injection mold of the prior structure mainly comprises a cover plate, a plate B and a bottom plate, the cover plate is fixedly connected with the plate A, a panel cavity is arranged between the plate A and the plate B, a main runner inlet is arranged on the plate A, a sub-runner is arranged on the plate B, the main runner inlet is communicated with the sub-runner through the main runner, the sub-runner is communicated with the panel cavity through a connecting hole, a process pin forming hole is arranged on the sub-runner, the plate B is generally composed of a base plate B and a sliding block, the connecting hole is arranged between the side surfaces of the base plate B and the sliding block, the sub-runner is arranged between the lower surfaces of the base plate B and the sliding block, and the process pin forming hole is arranged on. When the injection molding is carried out, injection molding raw materials are injected through the inlet of the main runner, reach the sub-runner through the main runner, reach the panel cavity through the connecting hole, and simultaneously inject the process foot forming holes, at the moment, the label panel is formed in the panel cavity, the label support is formed in the sub-runner, the connecting column is formed in the connecting hole, the electroplating process foot is formed in the process foot forming hole, and the clamping column is formed in the main runner. And when demoulding is carried out after injection molding is finished, the plate A is moved axially to open the panel cavity, the slide block is moved transversely to open the sub-runners and the connecting holes, and then a mechanical arm chuck is used for clamping the clamping column to take out the injection molded product from the substrate B. However, because the electroplating process foot in the process foot shaping hole is located the B base plate, and subchannel and connecting hole symmetry set up between B base plate and slider and make the second half of sign support and spliced pole imbed the B base plate, consequently the adhesive force of product and B base plate is great, need apply great pulling force and can take off the product, and the area of some sign class products is great can cause and take place the slope when getting the product, consequently, can often take place the condition that electroplating process foot broke off and product edge are cracked, cause scrapping of whole product. The existing solution is to arrange an ejection mechanism between the plate B and the bottom plate, apply an ejection force to the product from below through an ejector pin to separate the product from the plate B, and then clamp the clamping column by the manipulator chuck to take the injection molded product out of the plate B. However, the mold of this structure also has the following problems:
1. an ejector pin of the ejection mechanism is positioned at the bottom of the sliding block, and the ejection clamping is easy to impact the sliding block and the cavity;
2. a suspended part is arranged between the moving die B plate and the ejection mechanism, and the template can deform during injection molding to easily generate flash.
Disclosure of Invention
The invention aims to solve the technical problem of providing an injection mold for manufacturing label injection products, which can realize effective demolding without using an ejection mechanism and has high product qualification rate.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides an injection mold for making sign class injection molding product, includes apron, A board, B board and bottom plate, the apron with A board fixed connection, A board with the B board between be provided with the panel die cavity, the A board on set up the sprue import, the B board on be provided with the subchannel, the sprue import with the subchannel between communicate through the sprue, the subchannel with the panel die cavity between communicate through the connecting hole, the subchannel on be provided with technology foot shaping hole, the B board constitute by B base plate and slider, the subchannel the connecting hole with technology foot shaping hole set up between the inboard surface of B base plate and the side surface of slider, the B board with bottom plate fixed connection.
The inner side surface of the B substrate is a smooth plane, and the sub-flow channel, the connecting hole and the process pin forming hole are formed by mutually matching a sub-flow channel, a connecting groove and a process pin forming groove which are arranged on the side surface of the sliding block with the inner side surface of the B substrate. In this case, the adhesion of the product to the B substrate is further reduced after the slider is removed.
The central axis of the main runner is positioned within +/-2 mm of the gravity center of the product. Therefore, the phenomenon that when the product is large, the product is inclined due to unbalanced gravity when the product is taken out of the B substrate can be avoided as much as possible, and edge breakage of the product is caused.
Compared with the prior art, the invention has the advantages that the shunting channels, the connecting holes and the process pin forming holes are arranged between the inner side surface of the B substrate and the side surface of the sliding block, so that the bonding force between the product and the B substrate is reduced, and the product can be taken out from the B substrate by the mechanical arm chuck with smaller drawing force; at the moment, the whole pair of dies does not need to be provided with an ejection mechanism, the dies are simple in structure, the material and manufacturing cost is greatly reduced, and the manufacturing period of the dies is greatly shortened; in addition, an ejection system is cancelled, so that the ejector pin of the mold is prevented from impacting the sliding block and the cavity, the frequency of mold maintenance requirements is reduced, the maintenance is simple, and the maintenance period is reduced; the B plate is fixedly connected with the bottom plate, a suspended part is not arranged, the deformation of the template can not occur during injection molding, and the generation of flash is eliminated. The sub-runners, the connecting holes and the process pin forming holes are arranged between the inner side surface of the B substrate and the side surface of the sliding block, and particularly, the inner side surface of the B substrate is a smooth plane, so that the volume of a product is reduced, plastic materials are saved, the surface area of the product is reduced, the consumption of electroplating liquid medicine in the subsequent treatment process of the product is reduced, and the electroplating cost of the product is reduced. Compared with the prior art, the die material reduces 2 square irons, an ejector pin plate and an ejector pin fixing plate are omitted, structures such as ejector pins, reset rods and reset springs are omitted, and the die cost is reduced by about one third; the mold has no ejection system, and the maintenance frequency is improved from the original 5000 molds/time to 10000 molds/time.
Drawings
FIG. 1 is an exploded perspective view of a mold according to an embodiment of the present invention;
FIG. 2 is a perspective view of a plate A according to an embodiment of the present invention;
FIG. 3 is a perspective view of a substrate according to embodiment B of the present invention;
FIG. 4 is a perspective view of a slider according to an embodiment of the present invention;
FIG. 5 is a schematic perspective view of a product processed by the method of the present invention;
fig. 6 is a schematic diagram of the demolding process of the mold of the present invention.
In the figure: 1-cover plate; 2-A plate, 21-panel cavity, 22-main runner inlet, 23-main runner; 3-B board, 30-B base board, 31-shunt, 32-connecting hole, 33-technical pin forming hole and 35-sliding block; 4-a bottom plate; 5, layering; 6-locking the mold and buckling; 100-product, 101-sign stand, 102-connecting column, 103-electroplating process foot, 104-clamping column, 105-sign panel; 200-robot gripping head.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
Example (b): as shown in fig. 1 to 5, an injection mold for manufacturing injection molded products of signs comprises a cover plate 1, an a plate 2, a B plate 3 and a bottom plate 4, the cover plate 1 is fixedly connected with the a plate 2, a panel cavity 21 is arranged between the a plate 2 and the B plate 3, a main channel inlet 22 is arranged on the a plate 2, a branch channel 31 is arranged on the B plate 3, the main channel inlet 22 is communicated with the branch channel 31 through the main channel 23, the branch channel 31 is communicated with the panel cavity 21 through a connecting hole 32, a process foot forming hole 33 is arranged on the branch channel 31, the B plate 3 is composed of a B substrate 30 and a slide block 35, the branch channel 31, the connecting hole 32 and the process foot forming hole 33 are arranged between the inner side surface of the B substrate 30 and the side surface of the slide block 35, and the B plate 3 is fixedly connected with the bottom plate 4.
The inner side surface of the B substrate 30 is a smooth plane, and the branch channel 31, the connection hole 32 and the process foot forming hole 33 are formed by matching a branch channel, a connection channel and a process foot forming channel which are arranged on the side surface of the sliding block 35 with the inner side surface of the B substrate 30. In this case, when the slider 35 is removed, only one side of the sign holder 101 formed on the branch passage 31, the coupling post 102 formed on the coupling hole 32, and the plating process leg 103 formed on the process leg forming hole 33 of the product 100 is attached to the inner side surface of the B substrate 30, and the adhesion of the product to the B substrate 30 is greatly reduced.
The central axis of the main flow channel 23 is located within ± 2mm of the center of gravity of the product 100. Thus, when the robot chuck 200 grips the grip post 104 formed in the main flow passage 23 and takes out the product 100 from the B substrate 30, the tilt is not generated, and the edge breakage of the product is prevented.
The process of opening the mold according to the invention is shown in fig. 6:
opening the mold locking buckle 6, and axially moving the A plate 2 to open the panel cavity 21; secondly, loosening the batten 5, clamping the clamping column 105 by using the mechanical arm chuck 200, and transversely moving the sliding block 35 to separate the label bracket 101, the connecting column 102 and the electroplating process foot 103 from the sliding block 35; and thirdly, the robot chuck 200 is axially moved to take the product 100 out of the substrate 30.

Claims (3)

1. The utility model provides an injection mold for making sign class injection molding product, includes apron, A board, B board and bottom plate, the apron with A board fixed connection, A board with B board between be provided with the panel die cavity, A board on set up the sprue import, B board on be provided with the sprue, the sprue import with the sprue between communicate through the sprue, the sprue with the panel die cavity between communicate through the connecting hole, the sprue on be provided with technology foot shaping hole, its characterized in that B board constitute by B base plate and slider, the sprue the connecting hole with technology foot shaping hole set up between the side surface of the inboard surface of B base plate and slider, B board with bottom plate fixed connection.
2. The injection mold according to claim 1, wherein the inner surface of the B substrate is a smooth plane, and the runner, the connecting hole and the process foot forming hole are formed by a runner groove, a connecting groove and a process foot forming groove which are formed on the side surface of the slider and are engaged with the inner surface of the B substrate.
3. An injection mold for making injection molded products of the signage type according to claim 1 or 2, wherein the central axis of the main flow channel is located within ± 2mm of the center of gravity of the product.
CN202010377067.2A 2020-05-07 2020-05-07 Injection mold for manufacturing label injection products Active CN111559053B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010377067.2A CN111559053B (en) 2020-05-07 2020-05-07 Injection mold for manufacturing label injection products

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010377067.2A CN111559053B (en) 2020-05-07 2020-05-07 Injection mold for manufacturing label injection products

Publications (2)

Publication Number Publication Date
CN111559053A true CN111559053A (en) 2020-08-21
CN111559053B CN111559053B (en) 2022-02-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010377067.2A Active CN111559053B (en) 2020-05-07 2020-05-07 Injection mold for manufacturing label injection products

Country Status (1)

Country Link
CN (1) CN111559053B (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204367315U (en) * 2014-12-31 2015-06-03 河南机电高等专科学校 Sign board injection mold
CN205238455U (en) * 2015-12-25 2016-05-18 东莞市亿辰模具科技有限公司 Injection mold
CN209350774U (en) * 2019-07-16 2019-09-06 慈溪市易格模具有限公司 A kind of vehicle label mold

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204367315U (en) * 2014-12-31 2015-06-03 河南机电高等专科学校 Sign board injection mold
CN205238455U (en) * 2015-12-25 2016-05-18 东莞市亿辰模具科技有限公司 Injection mold
CN209350774U (en) * 2019-07-16 2019-09-06 慈溪市易格模具有限公司 A kind of vehicle label mold

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