CN213166575U - Anti-corrosion limiting arm, injection mold thereof and limiter - Google Patents
Anti-corrosion limiting arm, injection mold thereof and limiter Download PDFInfo
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- CN213166575U CN213166575U CN202021034537.7U CN202021034537U CN213166575U CN 213166575 U CN213166575 U CN 213166575U CN 202021034537 U CN202021034537 U CN 202021034537U CN 213166575 U CN213166575 U CN 213166575U
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- 238000005260 corrosion Methods 0.000 title claims abstract description 29
- 238000002347 injection Methods 0.000 title claims abstract description 27
- 239000007924 injection Substances 0.000 title claims abstract description 27
- 238000001746 injection moulding Methods 0.000 claims abstract description 44
- 230000007797 corrosion Effects 0.000 claims abstract description 12
- 229920003023 plastic Polymers 0.000 claims description 10
- 239000004033 plastic Substances 0.000 claims description 10
- 238000007493 shaping process Methods 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000000465 moulding Methods 0.000 description 8
- 230000006872 improvement Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 239000002184 metal Substances 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a spacing arm of anticorrosion, its injection mold and stopper, wherein, spacing arm is including the core that has the limit function district, the core limit function district complete and the package of surface is moulded there is the injection molding body. The utility model provides a novel anti-corrosion limiting arm structure, the internal core body of the limiting arm has complete surface and no positioning hole, after the injection molding is completed, the injection molding body can completely cover the surface of the limiting function area of the core body, and the core body at the positioning hole can not be exposed outside, on one hand, the manufacturing process of the core body without the positioning hole is greatly simplified, the production efficiency is improved, and the cost is saved; on the other hand, the problem that the core body at the positioning hole is exposed and is influenced by the corrosion of the external environment is solved, the corrosion resistance of the limiting arm is effectively improved, and the service life is prolonged; on the other hand, the core body exposed at the positioning hole does not need to be subjected to anti-corrosion treatment, so that the post-treatment process and the cost are greatly saved.
Description
Technical Field
The utility model relates to a spacing arm of door and stopper especially relate to a spacing arm of anticorrosion, its injection mold and stopper.
Background
The doors typically swing between fully closed and fully open positions to allow passengers to enter and exit the vehicle. Door check assemblies are commonly used to limit how far a door can swing and to provide an intermediate position at which the door can remain. Conventional vehicle door check assemblies include a check arm having a number of detents and a check arm locator employing a spring-loaded slider that engages the detents to hold the door in a neutral position.
The limiting arm belongs to a secondary injection molding product (plastic coated part), as shown in fig. 1 and fig. 2, a metal part (core body) is arranged in the middle of the limiting arm 1a with strength requirements, the core body needs to be positioned in a mold in the molding process, the core body of the product in the market is positioned by a through hole 11a, and the positioning mode has the defects that the strength of the limiting arm 1a is reduced, the core body leaks outwards, and the corrosion resistance is reduced.
SUMMERY OF THE UTILITY MODEL
For solving exist among the prior art or latent weak point, the utility model provides a spacing arm of anticorrosion and injection mold thereof to and one kind have this spacing arm of anticorrosion, can guarantee spacing arm intensity and improve corrosion resistance, avoid leading to the cracked risk of spacing arm because of corrosion problems.
The utility model discloses the technical scheme who adopts does: the anti-corrosion limiting arm comprises a core body with a limiting function area, wherein the surface of the limiting function area of the core body is complete and is coated with an injection molding body.
The utility model discloses the further improvement of the spacing arm of anticorrosion lies in, the core still has the mounting hole that supplies to connect the automobile body mount pad, the injection molding body package mould extremely the border of mounting hole.
The utility model provides an injection mold for spacing arm of anticorrosion, injection mold includes mould, lower mould and reference column, go up the mould with the lower mould when using the lock in the both sides surface of core and inside form and supply to mould plastics the injection moulding space of injection moulding body, go up the mould and/or be equipped with in the lower mould with the runner of moulding plastics of injection moulding space intercommunication, but the quantity of reference column is two at least and sets up through elastic component elasticity activity respectively go up the mould with in the lower mould, the reference column is in the elastic component's elasticity effect withstands to settle under the effect of pressure the injection moulding body in the injection moulding space the core, just the reference column is in overcome the elasticity of elastic component under the effect of pressure the injection moulding body moves to the direction of keeping away from the core.
The utility model discloses injection mold's further improvement lies in, the elastic component is the spring, the spring housing is established the shaft of reference column, the one end of spring with reference column relatively fixed, the other end of spring with go up the mould or lower mould relatively fixed.
The utility model discloses injection mold's further improvement lies in, extend respectively at the both ends of reference column the both ends of spring, go up the mould shell with the confession has been seted up respectively on the mould shell down the reference column is worn out the post hole that the tip of spring was worn to establish.
The utility model discloses injection mold's further improvement lies in, go up the mould with the lower mould is inside hollow shell structure, is established by relative roof, moulding board and the enclosure that sets up respectively the roof with moulding board curb plate all around is integrative to be constituted, go up the mould with the two of lower mould form between the moulding board the space of moulding plastics.
The utility model discloses injection mold's further improvement lies in, the roof reaches counterpoint on the shaping plate is seted up the post hole.
The utility model discloses injection mold's further improvement lies in, the quantity of reference column is even number and two bisymmetry ground sets up go up in mould and the lower mould.
A limiter includes an anti-corrosion limiting arm.
The utility model discloses the further improvement of stopper lies in, the stopper still include automobile body mount pad, door mount pad and with the spacing subassembly of the spacing arm complex elasticity of anticorrosion, the spacing arm of anticorrosion is installed on the automobile body mount pad, the spacing subassembly setting of elasticity is in on the door mount pad, the spacing subassembly elasticity of elasticity press support in the spacing functional area of the spacing arm of anticorrosion.
Due to the adoption of the technical scheme, make the utility model discloses following beneficial effect has:
the utility model provides a novel anti-corrosion limiting arm structure, the internal core body of the limiting arm has complete surface and no positioning hole, after the injection molding is completed, the injection molding body can completely cover the surface of the limiting function area of the core body, and the core body at the positioning hole can not be exposed outside, on one hand, the manufacturing process of the core body without the positioning hole is greatly simplified, the production efficiency is improved, and the cost is saved; on the other hand, the problem that the core body at the positioning hole is exposed and is influenced by the corrosion of the external environment is solved, the corrosion resistance of the limiting arm is effectively improved, and the service life is prolonged; on the other hand, the core body exposed at the positioning hole does not need to be subjected to anti-corrosion treatment, so that the post-treatment process and the cost are greatly saved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic plan view of a conventional check arm.
Fig. 2 is a schematic view of a stopper with a conventional stopper arm.
Fig. 3 is a schematic plan view of an anti-corrosion limiting arm according to an embodiment of the present invention.
Fig. 4 is a partially enlarged view of the mounting hole of fig. 3.
FIG. 5 is a schematic view of the mounting mechanism of the mounting hole of FIG. 3.
Fig. 6 is a schematic structural view of a stopper with an anti-corrosion limiting arm according to an embodiment of the present invention.
Fig. 7 is a schematic structural diagram of an embodiment of an injection mold for manufacturing the anti-corrosion limiting arm according to the embodiment of the present invention.
FIG. 8 is an enlarged view of a portion of the structure of the single-sided injection mold engaged with the limiting arm core.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.
The embodiments of the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 3-6, for the embodiment of the utility model discloses spacing arm of anticorrosion, as shown in the figure, this spacing arm of anticorrosion 1 is mainly including having the core 101 of spacing function district 100, and core 101 can be the steel core, and spacing function district 100 of core 101 is complete on the surface, do not trompil and the plastic envelope has injection molding 102. The core body 101 is also provided with a mounting hole 13 for connecting a vehicle body mounting seat, and the injection molding body 102 is coated and molded to the edge of the mounting hole 13.
The utility model provides a novel anti-corrosion limiting arm structure, the internal core body of the limiting arm has complete surface and no positioning hole, after the injection molding is completed, the injection molding body can completely cover the surface of the limiting function area of the core body, and the core body at the positioning hole can not be exposed outside, on one hand, the manufacturing process of the core body without the positioning hole is greatly simplified, the production efficiency is improved, and the cost is saved; on the other hand, the problem that the core body at the positioning hole is exposed and is influenced by the corrosion of the external environment is solved, the corrosion resistance of the limiting arm is effectively improved, and the service life is prolonged; on one hand, the core body exposed at the positioning hole does not need to be subjected to anti-corrosion treatment, so that the post-treatment process and the cost thereof are greatly saved.
As shown in fig. 6, the stopper with the anti-corrosion stopper arm has the advantages of corrosion resistance, easy processing, cost saving, etc. of the stopper arm due to the anti-corrosion stopper arm.
Further, in the present embodiment, the stopper may further include a vehicle body mount 2, a door mount 4, and an elastic stopper assembly engaged with the stopper arm 1. Wherein, the automobile body mount pad 2 is for installing at the automobile body, like a hinged seat on the vehicle column, through rotating the pivot joint of 3 mounting holes 13 with spacing arm 1 of piece, should rotate 3 preferred adoption ladder rivets, counterpoint and wear to establish in the hinged hole of mounting hole 13 and hinged seat, form articulated fulcrum, spacing arm 1 can rotate around the ladder rivet for hinged seat, and spacing arm 1's one end is installed on the automobile body relatively rotatably promptly.
The elastic limit component further comprises two limit springs 5 and two limit sliders 6 which are oppositely arranged and are arranged on the vehicle door mounting seat 4, the vehicle door mounting seat 4 can be a housing component arranged on a vehicle door, two ends of the housing component are opened, the limit arms 1 can penetrate through the housing component, a stop block 8 is arranged at one end of the limit arms 1 after penetrating through the housing component so as to prevent the limit arms 1 from reversely breaking away from the housing component, and preferably, a layer of cushion pad 7 can be arranged between an outer side plate of the housing component and the stop block 8 to play roles of impact buffering and part protection.
Two limiting springs 5 and two limiting sliding blocks 6 are symmetrically arranged in the housing assembly, two ends of each limiting spring 5 respectively abut against one limiting sliding block 6 and one inner wall of the housing assembly, and the two limiting sliding blocks 6 are always in contact with limiting surfaces 12 on two side surfaces of the limiting arm 1 under the elastic action of the two limiting springs 5. In the process of opening or closing the vehicle door, the elastic limiting assembly moves along the limiting surface of the limiting arm, the interaction elastic force between the elastic limiting assembly and the elastic limiting assembly goes through the process of changing from small to large and then reducing, and the positioning of opening or closing the vehicle door is realized at the point of small acting force between the limiting arm and the elastic limiting assembly.
Referring to fig. 7 and 8, an injection mold for manufacturing the anti-corrosion limiting arm is shown, which mainly includes an upper film 91, a lower film 92 and a positioning post 93. When the upper die 91 and the lower die 92 are used, the upper die 91 and the lower die 92 are buckled on the two side surfaces of the limiting arm core body 101, an injection molding space for injection molding of the limiting arm injection molding body 102 is formed inside the upper die 91 and/or the lower die 92, an injection molding runner (not shown in the figure) communicated with the injection molding space is arranged in the upper die 91 and/or the lower die 92 for injecting injection molding liquid to form the injection molding body, the number of the positioning columns 93 is at least two, the positioning columns are respectively and elastically and movably arranged in the upper die 91 and the lower die 92 through an elastic piece 94, the elastic piece 94 adopts a compression spring, and the elasticity of the elastic piece 94: the positioning posts 93 can be pressed against the core 101 disposed in the injection space under the elastic force of the elastic member 94, and the positioning posts 93 overcome the elastic force of the elastic member 94 to move slowly away from the core 101 under the injection pressure generated during the injection process of the injection molding object, so that the positioning posts are pressed against the injection molding object 102 which is injection molded during the moving process. Therefore, in the process that the positioning column 93 moves towards the side far away from the core body, the injection molding liquid can enter the position right below the positioning column, so that the closed hole 11 effect is formed on the surface of the injection molded body 102 after injection molding is completed, as shown in fig. 3 and 4, the core body is not exposed, because the core body is a metal piece, the exposed metal piece can be prevented from being polluted and corroded by the external environment, and compared with the traditional mode of positioning through holes on the core body, the through holes can be eliminated by adopting the combination of the positioning column and the compression spring, and the strength of the limiting arm is enhanced.
The elastic member 94 may be a spring, such as a straight spring in this embodiment, the spring is sleeved on the shaft of the positioning pillar 93, one end of the spring is fixed to the positioning pillar 93 (the relative fixing means may be tight contact or may be welded), and the other end of the spring is fixed to the upper die 91 or the lower die 92 (the relative fixing means may be tight contact or may be welded).
Furthermore, two ends of the positioning column 93 extend out of two ends of the spring respectively, and the upper die 91 and the lower die 92 are provided with column holes through which the end portions of the positioning column 93, which penetrate out of the spring, penetrate out respectively. The positioning post 93 is movable up and down with respect to the post hole by the elastic force of the spring 94.
In this embodiment, the upper mold 91 and the lower mold 92 are of a hollow shell structure, and are respectively formed by a top plate, a shaping plate and side plates surrounding the top plate and the shaping plate, which are arranged oppositely, and an injection molding space is formed between the two shaping plates of the upper mold 91 and the lower mold 92. The top plate and the plastic plate are provided with column holes in an alignment way for the positioning columns to penetrate through.
The number of the positioning posts 93 is preferably an even number, two in the present embodiment, and two by two are symmetrically disposed in the upper film 91 and the lower film 92. One end of the limiting arm is provided with a mounting hole 13 for connecting a vehicle body mounting seat, and the positioning column 93 can be positioned on one side of the limiting arm close to the mounting hole 13 when in use. Because the injection molding body is relatively flat, the positioning is utilized. The position of the positioning post 93 can be set according to actual needs, and is not limited to the position in the embodiment.
The utility model discloses a spacing arm of anticorrosion adopts the cooperation of spring and reference column in injection moulding process, at the in-process of the injection moulding body of the spacing arm of moulding plastics, realizes the no through-hole location to the spacing arm core, and after the completion of moulding plastics, the core outside is wrapped up to the injection moulding body completely, avoids core through-hole locate mode to lead to the core to expose outside and perishable problem in through-hole department, guarantees the intensity of spacing arm and improves corrosion resistance.
It should be noted that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope covered by the technical content disclosed in the present invention without affecting the efficacy and the achievable purpose of the present invention. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention has been disclosed with the preferred embodiment, it is not limited to the present invention, and any skilled person can make modifications or changes equivalent to the equivalent embodiment without departing from the scope of the present invention, but all the technical matters of the present invention are within the scope of the present invention.
The technology, shape and construction parts which are not described in detail in the present invention are all known technology.
Claims (9)
1. The utility model provides a spacing arm of anticorrosion which characterized in that: the core body comprises a limiting function area, wherein the surface of the limiting function area of the core body is complete and is coated with an injection molding body; the core still has the mounting hole that supplies to connect the automobile body mount pad, the plastic-coated of injection molding body extremely the border of mounting hole.
2. An injection mold for making the corrosion protection check arm of claim 1, wherein: the injection mold comprises an upper mold, a lower mold and positioning columns, wherein the upper mold and the lower mold are buckled on the two side surfaces of the core body when in use, an injection molding space for injection molding of the injection molding body is formed inside the upper mold and/or the lower mold, an injection molding flow channel communicated with the injection molding space is arranged in the upper mold and/or the lower mold, the positioning columns are at least two and can be elastically and movably arranged in the upper mold and the lower mold respectively through elastic pieces, the positioning columns are abutted against the core body arranged in the injection molding space under the elastic action of the elastic pieces, and the positioning columns overcome the elastic force of the elastic pieces under the injection molding pressure of the injection molding body and move towards the direction far away from the core body.
3. The injection mold of claim 2, wherein: the elastic piece is a spring, the spring is sleeved on the column body of the positioning column, one end of the spring is relatively fixed with the positioning column, and the other end of the spring is relatively fixed with the upper die or the lower die.
4. An injection mold according to claim 3, wherein: two ends of the positioning column extend out of two ends of the spring respectively, and column holes for the positioning column to penetrate through the end part of the spring are formed in the upper die and the lower die respectively.
5. The injection mold of claim 4, wherein: the upper die and the lower die are of a hollow shell structure inside and are respectively arranged on the top plate, the shaping plate and the surrounding side plates which are arranged oppositely, the top plate and the shaping plate integrally form a whole, and the upper die and the lower die form a space between the shaping plates.
6. The injection mold of claim 5, wherein: the top plate and the plastic plate are provided with the column holes in an aligned mode.
7. An injection mould according to any of the claims 2 to 6, characterized in that: the number of the positioning columns is even and the positioning columns are symmetrically arranged in the upper die shell and the lower die shell in pairs.
8. A stopper, its characterized in that: comprising the anti-corrosion restraint arm of claim 1.
9. The retainer of claim 8, wherein: the stopper still includes automobile body mount pad, door mount pad and with the spacing arm complex elasticity of anticorrosion spacing subassembly, the spacing arm of anticorrosion is installed on the automobile body mount pad, the spacing subassembly of elasticity sets up on the door mount pad, the spacing subassembly elasticity of elasticity press support in the spacing functional area of the spacing arm of anticorrosion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021034537.7U CN213166575U (en) | 2020-06-08 | 2020-06-08 | Anti-corrosion limiting arm, injection mold thereof and limiter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021034537.7U CN213166575U (en) | 2020-06-08 | 2020-06-08 | Anti-corrosion limiting arm, injection mold thereof and limiter |
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| Publication Number | Publication Date |
|---|---|
| CN213166575U true CN213166575U (en) | 2021-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021034537.7U Active CN213166575U (en) | 2020-06-08 | 2020-06-08 | Anti-corrosion limiting arm, injection mold thereof and limiter |
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| Country | Link |
|---|---|
| CN (1) | CN213166575U (en) |
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- 2020-06-08 CN CN202021034537.7U patent/CN213166575U/en active Active
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Denomination of utility model: Anti corrosion limit arm, its injection mold, and limit device Granted publication date: 20210511 Pledgee: Agricultural Bank of China Limited Shanghai Songjiang Sub-branch Pledgor: SHANGHAI ANYUFENG INDUSTRIAL CO.,LTD. Registration number: Y2024980002599 |