CN111976092A - Injection mold - Google Patents

Injection mold Download PDF

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Publication number
CN111976092A
CN111976092A CN202010937496.0A CN202010937496A CN111976092A CN 111976092 A CN111976092 A CN 111976092A CN 202010937496 A CN202010937496 A CN 202010937496A CN 111976092 A CN111976092 A CN 111976092A
Authority
CN
China
Prior art keywords
terminal receiving
receiving groove
terminal
injection mold
shovel
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.)
Pending
Application number
CN202010937496.0A
Other languages
Chinese (zh)
Inventor
刘长坤
商君
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.)
Kunshan Jiahua Automotive Electronic Technology Co ltd
Original Assignee
Kunshan Jiahua Automotive Electronic Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kunshan Jiahua Automotive Electronic Technology Co ltd filed Critical Kunshan Jiahua Automotive Electronic Technology Co ltd
Priority to CN202010937496.0A priority Critical patent/CN111976092A/en
Publication of CN111976092A publication Critical patent/CN111976092A/en
Pending legal-status Critical Current

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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
    • 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
    • B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
    • B29C45/332—Mountings or guides therefor; Drives 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
    • 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
    • B29C45/40—Removing or ejecting moulded articles
    • B29C45/44—Removing or ejecting moulded articles for undercut articles
    • B29C45/4435—Removing or ejecting moulded articles for undercut articles using inclined, tiltable or flexible undercut forming elements driven by the ejector means
    • 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
    • B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
    • B29C45/332—Mountings or guides therefor; Drives therefor
    • B29C2045/334—Mountings or guides therefor; Drives therefor several transversely movable mould parts driven by a single drive means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The invention discloses an injection mold, which comprises an upper mold core, a lower mold core, a pressing plate and two shovel machine blocks, first slider, two elastic components, centre form mold insert, the second slider, the lower mould benevolence is equipped with accepts the chamber, the clamp plate is fixed in and accepts the intracavity, the clamp plate has the terminal constant head tank, the clamp plate includes wide portion and narrow portion, the both sides of narrow portion form two accommodating space, first slider includes the intermediate part and is located two lateral parts of intermediate part both sides, the intermediate part is located the narrow portion downside, two lateral parts hold respectively in two accommodating space, two shovel quick-witted piece insert respectively locate two accommodating space and with the lateral part cooperation that corresponds, shovel quick-witted piece upwards extends accommodating space, two elastic components butt respectively in two lateral parts, the elastic component is located the relative both sides of lateral part with shovel quick-witted piece, the equal butt in the intermediate part of second slider and centre form mold insert, the centre form mold insert is located second slider downside.

Description

Injection mold
Technical Field
The present invention relates to the field of injection molding.
Background
The connector in the prior art generally comprises a plastic body and hardware embedded in the plastic body, the hardware is generally formed by stamping a metal plate, the hardware has a protruding portion, and the plastic body is generally formed by injection molding. In the process of moulding plastics, generally place the hardware in injection mold earlier and fix a position the hardware, through moulding plastics formation plastic body, the hardware is buried underground in the plastic body, and the bulge is located outside the plastic body. Because the injection mold accurately positions the hardware, the protruding part is embedded in the injection mold, and the connector after injection molding is difficult to move out of the injection mold.
In view of the above, the present invention provides a new injection mold.
Disclosure of Invention
In view of the deficiencies of the prior art, the present invention is directed to a new injection mold that allows for easy removal of an injection molded part from the injection mold.
The invention is realized by the following technical scheme:
an injection mold comprises an upper mold core, a lower mold core, a pressing plate, two shovel machine blocks, a first sliding block, two elastic pieces, an inner mold insert and a second sliding block, wherein the lower mold core is provided with an accommodating cavity, the pressing plate is fixed in the accommodating cavity and provided with a terminal positioning groove, the pressing plate comprises a wide part and a narrow part, two accommodating spaces are formed on two sides of the narrow part, the first sliding block comprises a middle part and two side parts positioned on two sides of the middle part, the middle part is positioned on the lower side of the narrow part, the two side parts are respectively accommodated in the two accommodating spaces, the two shovel machine blocks are respectively inserted into the two accommodating spaces and matched with the corresponding side parts, the shovel machine blocks upwards extend out of the accommodating spaces, the two elastic pieces are respectively abutted against the two side parts, and the elastic pieces and the shovel machine blocks are positioned on two opposite sides of the side parts, the second sliding block and the inner mold insert are both abutted against the middle part, and the inner mold insert is located on the lower side of the second sliding block and abutted against the second sliding block.
Further, the inner mold insert is provided with a first terminal receiving groove extending in the up-down direction, the second slider is provided with a second terminal receiving groove extending in the up-down direction, and the first terminal receiving groove and the second terminal receiving groove are aligned in the up-down direction.
Further, the intermediate portion is provided with a third terminal receiving groove extending in the vertical direction, the third terminal receiving groove and the first terminal receiving groove are horizontally aligned, the third terminal receiving groove and the second terminal receiving groove are horizontally aligned, and the first terminal receiving groove, the second terminal receiving groove, and the third terminal receiving groove together form a terminal receiving space.
Further, the lateral part is provided with a first inclined plane, the shovel block is provided with a second inclined plane, and the first inclined plane is matched with the second inclined plane.
Further, the shovel block pushes against the side portion in the process of being inserted into the accommodating space, and after the second inclined surface is completely matched with the first inclined surface, the third terminal accommodating groove is matched with the first terminal accommodating groove in the horizontal direction.
Further, in the process that the shovel block moves out of the accommodating space, the second inclined surface is separated from the first inclined surface, the elastic piece pushes against the side portion, and the third terminal accommodating groove is separated from the first terminal accommodating groove in a matched mode.
Further, the second slider may be movable in a horizontal direction, and the second terminal receiving groove may be aligned with the first terminal receiving groove in an up-down direction after the second slider is moved until the second slider abuts against the narrow portion.
Further, the terminal positioning groove extends along the horizontal direction, the terminal positioning groove is used for accommodating the horizontal part of the terminal, and the terminal accommodating space is used for accommodating the vertical part of the terminal.
Furthermore, after the upper die core and the lower die core are assembled, the shovel machine block is accommodated in the upper die core and the lower die core.
Further, the elastic piece is a wave ball screw.
Compared with the prior art, the invention has the beneficial effects that: the injection mold provided by the invention adopts the first sliding block and the second sliding block, the first sliding block and the second sliding block are utilized to position the terminal during injection molding, and the first sliding block and the second sliding block are moved after injection molding is finished, so that an injection molding piece is easily taken out of the injection mold.
Drawings
FIG. 1 is a perspective view of an injection molded part of the present invention;
FIG. 2 is a perspective view of the injection molded part of FIG. 1 from another perspective;
FIG. 3 is a schematic perspective view of the injection mold of the present invention;
FIG. 4 is a schematic perspective view of the injection mold (with conductive terminals placed) shown in FIG. 3 with the upper mold core removed;
FIG. 5 is a schematic view of a portion of the injection mold (with conductive terminals disposed) shown in FIG. 4;
FIG. 6 is a schematic view of a portion of the injection mold (with conductive terminals disposed) shown in FIG. 5;
FIG. 7 is a schematic view of a portion of the injection mold (with conductive terminals disposed) shown in FIG. 5;
FIG. 8 is a schematic view of a portion of the injection mold shown in FIG. 7;
fig. 9 is a partial structural view of the injection mold shown in fig. 7.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in fig. 1 to 2, an injection molding part 10 according to the present invention includes a plastic body 11 and five conductive terminals 12 embedded in the plastic body 11, wherein the five conductive terminals 12 are sequentially arranged along a horizontal direction. Each of the conductive terminals 12 includes a horizontal portion 121 and a vertical portion 122, the horizontal portion 121 extends in a front-rear direction, the vertical portion 122 is formed by extending downward from a rear end of the horizontal portion 121, and the horizontal portion 121 is disposed perpendicular to the vertical portion 122. The conductive terminal 12 further includes two protrusions 123 protruding from two sides of the vertical portion 122, the two protrusions 123 are located on two sides of the vertical portion 122, and the two protrusions 123 are symmetrically arranged in the front-back direction. The two protrusions 123 are located outside the plastic body 11. In the present embodiment, the vertical portion 122 of each conductive terminal 12 includes two protruding portions 123, and the two protruding portions 123 are symmetrically disposed in the front-rear direction, in other embodiments, the number and the position of the protruding portions 123 of the vertical portion 122 of each conductive terminal 12 may be set according to actual requirements.
Referring to fig. 3 to 9, an injection mold 20 according to the present invention includes an upper mold core 21, a lower mold core 22, a pressing plate 23 mounted on the lower mold core 22, two shovel blocks 24, a first sliding block 25, two elastic members 26, an inner mold insert 27, and a second sliding block 28. The lower mold core 22 has a receiving cavity, the pressing plate 23 is fixed in the receiving cavity, and the pressing plate 23 has a terminal positioning groove for positioning the conductive terminal 12. The pressing plate 23 is substantially T-shaped and includes a wide portion 231 and a narrow portion 232, the narrow portion 232 is located behind the wide portion 231, and two receiving spaces are formed on two sides of the narrow portion 232. The first slider 25 includes a middle portion 251 and two side portions 252 located at two sides of the middle portion 251, the first slider 25 is mounted on the lower die core 22, the middle portion 251 is located at a lower side of the narrow portion 232 and abuts against a lower surface of the narrow portion 232 from bottom to top, the two side portions 252 are respectively accommodated in the two accommodating spaces, and a rear surface of the narrow portion 232 is flush with a rear surface of the first slider 25. The two shovel blocks 24 are respectively installed in the two accommodating spaces, specifically, the shovel blocks 24 are installed between the wide portion 231 of the pressing plate 23 and the side portion 252 of the first slider 25, and the shovel blocks 24 extend upward out of the accommodating spaces. The two elastic members 26 are installed in the lower mold core 22, and the two elastic members 26 respectively abut against the rear surfaces of the two side portions 252 of the first slide 25 from the rear to the front. The second slide 28 is mounted on the lower core 22 and abuts against the rear surface of the narrow portion 232 and the rear surface of the middle portion 251 from the rear to the front. The inner mold insert 27 is mounted on the lower mold core 22 and abuts against the rear surface of the middle portion 251 from the rear to the front, and the inner mold insert 27 is located below the second slide 28 and abuts against the lower surface of the second slide 28 from the bottom to the top. In the present embodiment, the elastic element 26 is a ball screw, and in other embodiments, the elastic element 26 may also be other elements, which are specifically configured according to actual requirements.
The inner mold insert 27 is provided with five first terminal receiving grooves 271 recessed rearward from the front surface thereof, the second slider 28 is provided with five second terminal receiving grooves 281 recessed rearward from the front surface thereof, the intermediate portion 251 of the first slider 25 is provided with five third terminal receiving grooves 253 recessed forward from the rear surface thereof, and the first terminal receiving grooves 271, the second terminal receiving grooves 281, and the third terminal receiving grooves 253 extend in the up-down direction. When the inner mold insert 27 and the second slide 28 are abutted against the rear surface of the first slide 25 from the rear to the front, the five first terminal receiving grooves 271 and the five second terminal receiving grooves 281 are aligned in a one-to-one manner in the vertical direction, the five first terminal receiving grooves 271 and the five third terminal receiving grooves 253 are aligned in a one-to-one manner in the front-to-rear direction, and the five second terminal receiving grooves 281 and the five third terminal receiving grooves 253 are aligned in a one-to-one manner in the front-to-rear direction, so that the five first terminal receiving grooves 271, the five second terminal receiving grooves 281, and the five third terminal receiving grooves 253 form a terminal receiving space for receiving the vertical portion 122 of the five conductive terminals 12 together, and the protruding portion 123 of the vertical portion 122 is located in the terminal receiving space.
The front surfaces of the two side portions 252 of the first slider 25 are both smooth first inclined surfaces 254, the rear surface of the shovel block 24 that mates with the front surface of the side portion 25 is a smooth second inclined surface 241, the arrangement of the first inclined surface 254 and the second inclined surface 241 facilitates insertion of the shovel block 24 into the receiving space and mating with the front surface of the side portion 252 of the first slider 25, the shovel block 24 pushes the side portion 252 of the first slider 25 rearwardly during insertion, and when the second inclined surface 241 of the shovel block 24 fully mates with the first inclined surface 254 of the side portion 252 of the first slider 25, the rear surface of the first slider 25 is flush with the rear surface of the narrow portion 232 of the pressure plate 23. Similarly, the first and second inclined surfaces 254, 241 facilitate removal of the shovel block 24 from the receiving space and disengagement of the side portion 252 of the first slider 25, and the side portion 252 of the first slider 25 moves forward under the urging of the resilient member 26 during removal of the shovel block 24 from the receiving space. Since the two side portions 252 of the first slider 25 move forward simultaneously under the urging of the elastic member 26, the entire first slider 25 moves forward.
The method of forming the injection-molded part 10 is briefly described below: (1) sequentially accommodating the horizontal portions 121 of the five conductive terminals 12 in the terminal positioning grooves of the pressing plate 23, at this time, a part of the protruding portions 123 at the rear side of the vertical portions 122 of the conductive terminals 12 is accommodated in the first terminal accommodating groove 271 of the inner mold insert 27; (2) the second slider 28 moves forward until the second slider 28 abuts against the rear surface of the narrow portion 232 from the rear to the front, at this time, another portion of the protruding portion 123 at the rear side of the vertical portion 122 of the conductive terminal 12 is received in the second terminal receiving slot 281 of the second slider 28; (3) inserting the shovel block 24 into the accommodating space, pushing the first slider 25 downward and moving backward by the shovel block 24 until the rear surface of the first slider 25 abuts against the front surface of the second slider 28 and the front surface of the inner mold insert 27, and at this time, the protruding portion 123 of the front side of the vertical portion 122 of the conductive terminal 12 is accommodated in the third terminal accommodating groove 253 of the middle portion 251 of the first slider 25; (4) and (3) closing the upper die core 21 and the lower die core 22, and injecting the mixture into a cavity formed by the upper die core 21 and the lower die core 22 to form the injection molded part 10.
The method for detaching the injection molded part 10 from the injection mold 20 is briefly described below: (1) removing the upper mold core 21; (2) the two shovel machine blocks 24 are moved out of the accommodating space from bottom to top, the two side portions 252 of the first sliding block 25 move forward under the pushing of the elastic piece 26, and at this time, the protruding portion 123 on the front side of the vertical portion 122 of the conductive terminal 12 is separated from the third terminal accommodating groove 253 of the middle portion 251 of the first sliding block 25; (3) moving the second slider 28 backward, at which time the projecting portions 123 of the rear side of the vertical portions 122 of the conductive terminals 12 are disengaged from the second terminal receiving grooves 281 of the second slider 28; (4) the injection molded part 10 is removed from the injection mold 20.
The injection mold of the invention adopts the first slide block 25 and the second slide block 28, during injection molding, the first slide block 25 and the second slide block 28 are utilized to position the conductive terminal 12, and after injection molding is finished, the first slide block 25 and the second slide block 28 are moved, so that the injection molding piece 10 is easy to take out from the injection mold 20.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. An injection mold is characterized by comprising an upper mold core, a lower mold core, a pressing plate, two shovel machine blocks, a first sliding block, two elastic pieces, an inner mold insert and a second sliding block, wherein the lower mold core is provided with a containing cavity, the pressing plate is fixed in the containing cavity and is provided with a terminal positioning groove, the pressing plate comprises a wide part and a narrow part, two containing spaces are formed on two sides of the narrow part, the first sliding block comprises a middle part and two side parts positioned on two sides of the middle part, the middle part is positioned on the lower side of the narrow part, the two side parts are respectively contained in the two containing spaces, the two shovel machine blocks are respectively inserted into the two containing spaces and are matched with the corresponding side parts, the shovel machine blocks extend upwards to form the containing spaces, the two elastic pieces are respectively abutted against the two side parts, and the elastic pieces and the shovel machine blocks are positioned on two opposite sides of the side parts, the second sliding block and the inner mold insert are both abutted against the middle part, and the inner mold insert is located on the lower side of the second sliding block and abutted against the second sliding block.
2. The injection mold according to claim 1, wherein the inner mold insert is provided with a first terminal receiving groove extending in an up-down direction, and the second slide is provided with a second terminal receiving groove extending in an up-down direction, the first terminal receiving groove and the second terminal receiving groove being aligned in the up-down direction.
3. An injection mold according to claim 2, wherein the intermediate portion is provided with a third terminal receiving groove extending in the up-down direction, the third terminal receiving groove and the first terminal receiving groove are engaged in the horizontal direction, the third terminal receiving groove and the second terminal receiving groove are engaged in the horizontal direction, and the first terminal receiving groove, the second terminal receiving groove and the third terminal receiving groove collectively form a terminal receiving space.
4. An injection mold as claimed in claim 3, wherein the side portion is provided with a first inclined face and the shovel block is provided with a second inclined face, the first inclined face cooperating with the second inclined face.
5. The injection mold of claim 4, wherein the shovel block pushes against the side portion during insertion into the receiving space, and the third terminal receiving groove and the first terminal receiving groove are horizontally engaged after the second inclined surface and the first inclined surface are completely engaged.
6. The injection mold of claim 5, wherein during the process of moving the shovel block out of the accommodating space, the second inclined surface is separated from the first inclined surface, the elastic member pushes against the side portion, and the third terminal accommodating groove is separated from the first terminal accommodating groove.
7. The injection mold of claim 2, wherein the second slider is movable in a horizontal direction, and the second terminal receiving groove is aligned with the first terminal receiving groove in a vertical direction after the second slider is moved until abutting against the narrow portion.
8. The injection mold of claim 3, wherein the terminal positioning groove extends in a horizontal direction, the terminal positioning groove is configured to receive a horizontal portion of the terminal, and the terminal receiving space is configured to receive a vertical portion of the terminal.
9. The injection mold of claim 1, wherein the shovel loader block is received in the upper mold core and the lower mold core after the upper mold core and the lower mold core are closed.
10. An injection mold according to claim 1, wherein the elastic member is a wave ball screw.
CN202010937496.0A 2020-09-08 2020-09-08 Injection mold Pending CN111976092A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010937496.0A CN111976092A (en) 2020-09-08 2020-09-08 Injection mold

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010937496.0A CN111976092A (en) 2020-09-08 2020-09-08 Injection mold

Publications (1)

Publication Number Publication Date
CN111976092A true CN111976092A (en) 2020-11-24

Family

ID=73449261

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010937496.0A Pending CN111976092A (en) 2020-09-08 2020-09-08 Injection mold

Country Status (1)

Country Link
CN (1) CN111976092A (en)

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