CN112277258B - Forming die for producing high-speed connecting buckle shell - Google Patents

Forming die for producing high-speed connecting buckle shell Download PDF

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Publication number
CN112277258B
CN112277258B CN202010969775.5A CN202010969775A CN112277258B CN 112277258 B CN112277258 B CN 112277258B CN 202010969775 A CN202010969775 A CN 202010969775A CN 112277258 B CN112277258 B CN 112277258B
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China
Prior art keywords
die
insert
sliding
inner hole
product
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Active
Application number
CN202010969775.5A
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Chinese (zh)
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CN112277258A (en
Inventor
许英俊
连胜南
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LUOYANG LINUO MOLD CO Ltd
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LUOYANG LINUO MOLD CO Ltd
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Priority to CN202010969775.5A priority Critical patent/CN112277258B/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
    • B29C45/2602Mould construction elements
    • 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
    • B29C45/332Mountings or guides therefor; Drives therefor
    • 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
    • B29C45/44Removing or ejecting moulded articles for undercut articles
    • B29C45/4407Removing or ejecting moulded articles for undercut articles by flexible movement of undercut portions of the articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/34Electrical apparatus, e.g. sparking plugs or parts thereof
    • B29L2031/36Plugs, connectors, or parts thereof

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

Abstract

The invention relates to the field of injection molding production equipment of electrical connecting pieces, in particular to a forming die for producing a high-speed connecting buckle shell. The front die inner hole insert is split and comprises a fixed part and a sliding part, wherein the upper end of the fixed part is fixed with the front die, the sliding part is arranged in a sliding groove which is vertically arranged in the fixed part in a sliding manner, the inner edge of the fixed part is provided with an outer forming part corresponding to the outer parts of a pair of elastic hooks on the upper part of an inner hole, and the lower end of the sliding part extends out of the sliding groove and is provided with an inner forming part corresponding to the inner parts of the pair of elastic hooks on the upper part of the inner hole; the side wall of the fixed part is provided with a U-shaped groove, and the part of the sliding part positioned in the U-shaped groove is provided with hanging platforms which are distributed at intervals with the bottom of the U-shaped groove. The invention can avoid the breakage of the pair of elastic hooks positioned at the upper part of the inner hole of the product in the form removal process, thereby improving the qualification rate of the injection molding production of the product.

Description

Forming die for producing high-speed connecting buckle shell
Technical Field
The invention relates to the field of injection molding production equipment of electrical connecting pieces, in particular to a forming die for producing a high-speed connecting buckle shell.
Background
The high-speed connection buckle shown in fig. 8-10 is widely used in electrical equipment such as aerospace military industry, etc., and has an approximately rectangular outer part with an inner hole 802, and a pair of elastic hooks 801 for clamping corresponding electrical components are respectively arranged at the upper part and the lower part of the inner hole 802.
As shown in fig. 10, the upper and lower pairs of elastic hooks 801 are oppositely arranged, so that great difficulty is brought to the injection molding production of the high-speed connecting buckle housing product. A mould that is used for producing this product 8 among the prior art includes the front mould and can dismantle the back mould of connecting in the front mould below, and the lower edge of front mould is equipped with the front mould mold insert, and the last edge of back mould is equipped with the back mould mold insert, and the front mould mold insert closes jointly with the back mould mold insert and encloses out the shaping chamber that supplies product injection moulding. For the two pairs of elastic hooks 801 in the product, the front mold insert has a front mold inner hole insert corresponding to the upper part of the inner hole 802 of the product 8, the rear mold insert has a rear mold inner hole insert corresponding to the lower part of the inner hole 802 of the product 8, and the parting line of the front mold inner hole insert and the rear mold inner hole insert is located at the hook head part of the lower pair of elastic hooks 801, i.e. the line C-C in fig. 10.
The lower elastic hook 801 is formed by the cooperation of the front mold inner hole insert and the rear mold inner hole insert through the mold structure. In the process of detaching the front mold and the rear mold after injection molding, the front mold inner hole insert and the rear mold inner hole insert are separated along the line C-C, namely, the detachment of the lower elastic hook 801 is completed. But the pair of resilient hooks 801 located above the product 8 are formed entirely by corresponding recesses provided in the front mould female insert. In the process of removing the mold, the groove moves upwards relative to the product 8 along with the front mold inner hole insert, so that the groove presses the formed upper elastic hook 801, the upper elastic hook 801 is easily damaged by force, and the product yield is reduced. Particularly for injection molding production using PEI as a raw material, the PEI material is not easy to form, has high hardness and high brittleness, and is easy to break and fracture, so that the yield of products produced by the PEI material through the mold is extremely low, and the mold cannot meet large-scale quantitative production of high-speed connecting buckles.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a forming die for producing a high-speed connecting buckle shell, which is used for avoiding the breakage of a pair of elastic hooks positioned at the upper part of an inner hole of a product in the die removing process, so that the qualified rate of the injection molding production of the product is improved.
A forming die for producing a high-speed connecting buckle shell comprises a front die and a rear die detachably connected below the front die, wherein a front die insert is arranged on the lower edge of the front die, a rear die insert is arranged on the upper edge of the rear die, and the front die insert and the rear die insert jointly enclose a forming cavity for injection molding of a product; the front mold insert is provided with a front mold inner hole insert corresponding to the upper part of an inner hole of a product, the rear mold insert is provided with a rear mold inner hole insert corresponding to the lower part of the inner hole of the product, and a parting line of the front mold inner hole insert and the rear mold inner hole insert is positioned at the hook head parts of a pair of elastic hooks at the lower part of the inner hole of the product;
the front die inner hole insert is split and comprises a fixed part and a sliding part, wherein the upper end of the fixed part is fixed with the front die, the sliding part is arranged in a sliding chute which is vertically arranged in the fixed part in a sliding mode, the inner edge of the fixed part is provided with an outer forming part corresponding to the outer parts of the pair of elastic hooks on the upper part of the inner hole, and the lower end of the sliding part extends out of the sliding chute and is provided with an inner forming part corresponding to the inner parts of the pair of elastic hooks on the upper part of the inner hole; the side wall of the fixed part is provided with a U-shaped groove, and the part of the sliding part positioned in the U-shaped groove is provided with hanging platforms which are distributed at intervals with the bottom of the U-shaped groove.
Preferably, be equipped with the mounting groove on the front mould, the mounting is including inserting the canned paragraph of establishing in the mounting groove and distributing in the shaping section outside the slot, and outer shaping portion distributes on the shaping section, and U type groove distributes on the canned paragraph.
Preferably, a positioning step matched with the mounting groove in a positioning mode is arranged on the fixing section.
Preferably, the front die is rectangular, and four corner positions of the lower edge of the front die are provided with inserting platforms which are positioned, inserted and matched with the rear die.
Preferably, insert and all be equipped with the bolt hole that is used for through bolt with front mould and back mould fixed connection on the platform.
Advantageous effects
The front mold inner hole insert is split, an outer forming part corresponding to the outer forming of the pair of elastic hooks on the upper portion of the product inner hole is arranged on the fixed part, an inner forming part corresponding to the inner forming of the pair of elastic hooks on the upper portion of the product inner hole is arranged on the sliding part, and a U-shaped groove and a hanging platform structure are arranged between the fixed part and the sliding part. Therefore, in the mold stripping process, the fixing piece moves upwards along with the front mold, the outer forming part is pulled out of the injection molded product, the relative position of the sliding piece and the product is kept unchanged, and a space gap is formed on the outer sides of the pair of elastic hooks on the upper part of the inner hole of the product by pulling out the outer forming part in the process. Leave the space clearance and form the back and along hanging the platform and articulate in the bottom in U type groove for mounting and slider move up along with the front mould in step, the interior shaping portion on the slider oppresses the upper portion elastic hook that has formed and produces deformation towards leaving the space clearance direction this moment, and after interior shaping portion breaks away from the elastic hook completely, the elastic hook of top both sides then automatic re-setting, the form removal of completion product. In the process that the inner forming part on the sliding part presses the elastic hook to deform, due to the existence of the space-leaving gap outside the elastic hook, enough space is reserved for the deformation of the elastic hook, so that the pressing process is not easy to cause the breakage of the elastic hook, and the qualification rate of products is greatly improved.
The fixing piece and the sliding piece in the split front mold inner hole insert can be linked through the hanging table, so that the mold removing process of the split front mold inner hole insert is not different from the mold removing process of the existing mold, and the mold removing process only needs to move the front mold upwards or the rear mold downwards, the mold frame structure and the operation method of the existing injection molding production are not changed, and the split front mold inner hole insert has strong adaptability.
Drawings
FIG. 1 is a schematic perspective view of a front mold and a front mold cavity insert portion of the front mold according to the present invention;
FIG. 2 is a schematic perspective view of the front in-mold hole insert part of the present invention in an initial state;
FIG. 3 is a schematic diagram showing the relative position relationship between the front mold inner hole insert and the product in the injection molding state;
FIG. 4 is a schematic structural diagram of the mold insert with the fixture pulled out of the product after the injection molding;
fig. 5 is a sectional view of the front mold inner hole insert and the product in the state shown in fig. 4;
fig. 6 is a cross-sectional view of the front mold inner hole insert and the product in another view in the state shown in fig. 4;
FIG. 7 is a schematic view of the front mold inner hole insert of FIG. 5 after being completely pulled out of the product;
FIG. 8 is a schematic perspective view of a product;
FIG. 9 is a top view of the product;
FIG. 10 is a longitudinal cross-sectional view of the product;
The labels in the figure are: 1. the forming device comprises an inserting table, 2, a front mold, 3, a front mold inner hole insert, 301, a fixing piece, 301-1, a fixing section, 301-2, a forming section, 302, a sliding piece, 4, a hanging table, 5, a U-shaped groove, 6, a positioning step, 7, an outer forming portion, 8, a product, 801, an elastic hook, 802, an inner hole, 9, an inner forming portion, 10 and a reserved space.
Detailed Description
The invention relates to a forming die for producing a high-speed connecting buckle shell, which comprises a front die 2 and a rear die detachably connected below the front die 2. The lower edge of the front die 2 is provided with a front die insert, the upper edge of the rear die is provided with a rear die insert, and the front die insert and the rear die insert jointly enclose a forming cavity for injection molding of a product 8. The front mold insert is provided with a front mold inner hole insert 3 corresponding to the upper part of the inner hole 802 of the product 8, the rear mold insert is provided with a rear mold inner hole insert corresponding to the lower part of the inner hole 802 of the product 8, and the parting line of the front mold inner hole insert 3 and the rear mold inner hole insert is positioned at the hook head part of a pair of elastic hooks 801 at the lower part of the inner hole 802 of the product 8, namely the C-C line in fig. 10. The structure of the invention is the same as the high-speed connecting buckle shell injection mold in the background art, and is similar to the structures of a front mold, a rear mold, a front mold insert and a rear mold insert which are generally used in mold injection molding, and no further description is needed here, and key technical characteristics of the invention which can greatly improve the qualification rate of the high-speed connecting buckle shell compared with the prior art are mainly described as follows:
As shown in fig. 1 and 2, the front mold inner hole insert 3 is split, and includes a fixing member 301 whose upper end is fixed to the front mold 2 and a sliding member 302 which is slidably disposed in a sliding groove vertically formed in the fixing member 301, and the sliding member 302 is attached to and slides in the sliding groove to prevent glue leakage. As shown in fig. 3, 5 and 7, the inner edge of the fixing member 301 is provided with two outer forming portions 7 corresponding to the outer portions of the pair of elastic hooks 801 at the upper portion of the inner hole 802, the two outer forming portions 7 are of a plug type and are respectively located at two sides of the sliding member 302; the lower end of the sliding part 302 extends out of the sliding groove and is provided with inner forming parts 9 corresponding to the inner parts of the pair of elastic hooks 801 at the upper part of the inner hole 802, the inner forming parts 9 are grooves corresponding to the shapes of the inner sides of the hook heads of the elastic hooks 801, and the number of the grooves is two. A U-shaped groove 5 is provided on the side wall of the fixed member 301, and a hanging table 4 is provided on the top of the portion of the sliding member 302 located in the U-shaped groove 5, the hanging table 4 being located at the notch position of the U-shaped groove 5 in the initial state of the present invention as shown in fig. 2.
The application process of the invention is as follows:
first, in the initial state of the front mold core insert 3 shown in fig. 2, glue is injected into the molding cavity of the present invention, and after injection molding, the product 8 is formed into an upper elastic hook 801 shown in fig. 3.
Then the front mold 2 and the rear mold are vertically split, the fixing piece 301 in the front mold inner hole insert 3 is stressed to be separated from the product 8, as shown in fig. 5 and 6, two sides of two elastic hooks 801 positioned at the upper part of the product 8 after separation form a space-remaining gap 10 respectively due to the extraction of the outer forming part 7; while the slide 302 in the front mold hole insert 3 remains embedded in the product 8. Until the bottom of the U-shaped groove 5 shown in fig. 4 contacts the hanging table 4, the fixed member 301 and the sliding member 302 in the front mold inner hole insert 3 are connected integrally by the hanging table 4. At this time, with the continuous displacement of the front mold 2 and the rear mold along the vertical direction, the sliding member 302 moves up synchronously with the fixed member 301, the inner forming portion 9 on the sliding member 302 presses the formed upper elastic hook 801 to displace towards the direction of the space-leaving gap 10 on the corresponding side, until the inner forming portion 9 is completely separated from the elastic hook 801, the elastic hook 801 automatically resets to the state shown in fig. 7 under the action of the elastic potential energy of the elastic hook 801, and the mold removal of the product 8 is completed. In the process of moving upwards and pressing the elastic hook 801 to deform by the inner forming part 9 on the sliding part 302, due to the existence of the space-reserving gap 10 on the outer side of the elastic hook 801, enough space is reserved for the deformation of the elastic hook 801, so that the elastic hook 801 is not easily broken in the pressing process, and the qualification rate of the product 8 is greatly improved.
In this embodiment, as shown in fig. 1 and fig. 2, the front mold 2 is provided with a mounting groove, the fixing member 301 includes a fixing section 301-1 inserted in the mounting groove and a forming section 301-2 distributed outside the mounting groove, the outer forming portion 7 is distributed on the forming section 301-2, and the U-shaped groove 5 is distributed on the fixing section 301-1. And a positioning step 6 matched with the mounting groove in a positioning manner is arranged on the fixing section 301-1. The front mould 2 is rectangular, and four angular positions on the lower edge of the front mould 2 are provided with inserting platforms 1 which are positioned, inserted and matched with the rear mould. All be equipped with on the platform 1 and be used for through the bolt hole of bolt with front mould 2 and back mould fixed connection.

Claims (3)

1. A forming die for producing a high-speed connecting buckle shell comprises a front die (2) and a rear die detachably connected below the front die (2), wherein a front die insert is arranged on the lower edge of the front die (2), a rear die insert is arranged on the upper edge of the rear die, and a forming cavity for injection molding of a product (8) is defined by the front die insert and the rear die insert together; have in the front mould mold insert with corresponding front mould hole mold insert (3) in hole (802) upper portion of product (8), have in the back mould mold insert with the corresponding back mould hole mold insert in hole (802) lower part of product (8), and the parting line of front mould hole mold insert (3) and back mould hole mold insert is located the gib head position of a pair of elastic hook (801) of product (8) hole (802) lower part, its characterized in that:
The front die inner hole insert (3) is split and comprises a fixed part (301) with the upper end fixed with the front die (2) and a sliding part (302) arranged in a sliding groove vertically formed in the fixed part (301), the inner edge of the fixed part (301) is provided with an outer forming part (7) corresponding to the outer parts of a pair of elastic hooks (801) at the upper part of an inner hole (802), and the lower end of the sliding part (302) extends out of the sliding groove and is provided with an inner forming part (9) corresponding to the inner parts of a pair of elastic hooks (801) at the upper part of the inner hole (802); a U-shaped groove (5) is formed in the side wall of the fixed piece (301), and a hanging table (4) which is distributed at intervals with the groove bottom of the U-shaped groove (5) is arranged on the part, located in the U-shaped groove (5), of the sliding piece (302);
the front die (2) is provided with a mounting groove, the fixing piece (301) comprises a fixing section (301-1) inserted in the mounting groove and forming sections (301-2) distributed outside the slot, the outer forming part (7) is distributed on the forming sections (301-2), and the U-shaped groove (5) is distributed on the fixing section (301-1);
the front mould (2) is rectangular, and the four angular positions of the lower edge of the front mould (2) are provided with inserting platforms (1) which are positioned, inserted and matched with the rear mould.
2. The mold for producing a snap housing for high-speed connection according to claim 1, wherein: and a positioning step (6) which is matched with the mounting groove in a positioning way is arranged on the fixing section (301-1).
3. The mold for producing a snap housing for high-speed connection according to claim 1, wherein: the inserting table (1) is provided with bolt holes for fixedly connecting the front die (2) and the rear die through bolts.
CN202010969775.5A 2020-09-15 2020-09-15 Forming die for producing high-speed connecting buckle shell Active CN112277258B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010969775.5A CN112277258B (en) 2020-09-15 2020-09-15 Forming die for producing high-speed connecting buckle shell

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Application Number Priority Date Filing Date Title
CN202010969775.5A CN112277258B (en) 2020-09-15 2020-09-15 Forming die for producing high-speed connecting buckle shell

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CN112277258A CN112277258A (en) 2021-01-29
CN112277258B true CN112277258B (en) 2022-07-29

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Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102407581A (en) * 2010-09-22 2012-04-11 浙江凯华模具有限公司 Side core-pulling mechanism of buckle slide block installed on automobile water tank die
CN205009522U (en) * 2015-05-25 2016-02-03 牟维军 Adopt fixed mold to float and secondary ejection mechanism's demoulding structure mould
CN205870956U (en) * 2016-07-19 2017-01-11 深圳市汇晨电子股份有限公司 Casing back -off structure take off mould structure by force
CN107053613A (en) * 2017-05-15 2017-08-18 宁波神通模塑有限公司 A kind of sliding block for secondary core pulling takes off by force holes mechanism
CN107379441A (en) * 2017-07-28 2017-11-24 宁波南方塑料模具有限公司 Mold the direction mould angled with ejecting direction
CN206796455U (en) * 2017-04-10 2017-12-26 宁波神通模塑有限公司 A kind of strong demoulding secondary ejecting mechanism
CN108748886A (en) * 2018-06-04 2018-11-06 珠海格力精密模具有限公司 A kind of injection mold
CN209191227U (en) * 2018-11-07 2019-08-02 中山世达模型制造有限公司 Portable secondary ejection strong-pushing type mold
CN209191216U (en) * 2018-10-23 2019-08-02 深圳市银宝山新科技股份有限公司 Injection mold for the production with back-off
CN209718511U (en) * 2019-03-20 2019-12-03 无锡模达科技有限公司 A kind of mold of band Suo Ke mechanism
CN210233830U (en) * 2019-06-28 2020-04-03 天津塞科凯尔科技有限公司 Slide block delay demoulding mechanism for buckle structure of medical product formed by injection mould

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102407581A (en) * 2010-09-22 2012-04-11 浙江凯华模具有限公司 Side core-pulling mechanism of buckle slide block installed on automobile water tank die
CN205009522U (en) * 2015-05-25 2016-02-03 牟维军 Adopt fixed mold to float and secondary ejection mechanism's demoulding structure mould
CN205870956U (en) * 2016-07-19 2017-01-11 深圳市汇晨电子股份有限公司 Casing back -off structure take off mould structure by force
CN206796455U (en) * 2017-04-10 2017-12-26 宁波神通模塑有限公司 A kind of strong demoulding secondary ejecting mechanism
CN107053613A (en) * 2017-05-15 2017-08-18 宁波神通模塑有限公司 A kind of sliding block for secondary core pulling takes off by force holes mechanism
CN107379441A (en) * 2017-07-28 2017-11-24 宁波南方塑料模具有限公司 Mold the direction mould angled with ejecting direction
CN108748886A (en) * 2018-06-04 2018-11-06 珠海格力精密模具有限公司 A kind of injection mold
CN209191216U (en) * 2018-10-23 2019-08-02 深圳市银宝山新科技股份有限公司 Injection mold for the production with back-off
CN209191227U (en) * 2018-11-07 2019-08-02 中山世达模型制造有限公司 Portable secondary ejection strong-pushing type mold
CN209718511U (en) * 2019-03-20 2019-12-03 无锡模达科技有限公司 A kind of mold of band Suo Ke mechanism
CN210233830U (en) * 2019-06-28 2020-04-03 天津塞科凯尔科技有限公司 Slide block delay demoulding mechanism for buckle structure of medical product formed by injection mould

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