CN208288935U - Arbor support with step shape - Google Patents
Arbor support with step shape Download PDFInfo
- Publication number
- CN208288935U CN208288935U CN201820851332.4U CN201820851332U CN208288935U CN 208288935 U CN208288935 U CN 208288935U CN 201820851332 U CN201820851332 U CN 201820851332U CN 208288935 U CN208288935 U CN 208288935U
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- Prior art keywords
- arbor
- layer step
- layer
- support
- arbor support
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Abstract
The arbor support with step shape that the utility model discloses a kind of, arbor support are installed in lower core box, and arbor support is four layers of step structure, it include: first layer step, its top for being set to arbor support, first layer step is used to be through on arbor, and supports arbor by the bottom of first layer step；The lower section of first layer step is arranged in second layer step, and second layer step has pattern draft, to demould；The lower section of second layer step is arranged in third layer step, the positioning for arbor support；And the 4th layer of step, the lower section of third layer step is set, for being fixed on lower core box；Wherein, relief hole corresponding with first layer step is provided on arbor, relief hole does not penetrate through arbor, and the length of first layer step is arranged to when first layer step penetrates in relief hole, the bottom of first layer step can be withstood on arbor, to prevent arbor from overturning or shifting under the impact of sand flow.The arbor of the utility model supports small in size, supporting & stablizing.
Description
Technical field
The utility model relates to casting technology field, in particular to a kind of arbor support with step shape.
Background technique
Arbor in sand casting is for securely being connected entire sand core, to become an entirety, to protect
Demonstrate,prove sand core during production and transportation, the problems such as being not in fracture, its main function is to increase the rigidity of sand core and strong
Degree.In addition, arbor is also used to lift by crane, so that convenient carry out sand core the work such as to allocate and transport.
The support of sand core bone is to design and be mounted on mold, is typically mounted in lower core box, for supporting and fixing arbor, with
Prevent arbor during coremaking as shift position and caused by sand core the problem of scrapping.
Currently, for the ease of arbor placement and prevent arbor from supportting upper shift position in arbor, as shown in Figure 1, existing
Arbor supports 1 upper end and is designed to U-type groove 4, and designs magnet mounting hole 5 in 4 bottom of U-type groove.Arbor 2 is placed on the U that arbor supports 1 upper end
In type groove 4, magnet 6 is placed on magnet mounting hole 5.By the attraction of magnet 6 and the limitation of U-type groove 4, arbor 2 is capable of fixing
In arbor support 1, and it will not move.It is existing in particular for the hollow steel tube arbor of lifting but for big brod
The design method for having arbor to support has certain limitation in use, is not able to satisfy the requirement of large-scale arbor, main to show
: (1) design method of existing arbor support can only meet tiny arbor, and for big brod, the U-type groove in arbor support needs
Accordingly become larger, so that arbor support body product greatly increases.Too big arbor support can occupy mold cavity location, can not be arranged in
On mold；(2) only arbor is sucked by magnet in the design method of existing arbor support, and arbor still has mobile hidden danger in use, especially
It is in core shooting on core shooter, and arbor can get rid of magnet and shift position under the impact energetically of sand flow；(3) if arbor supports
Too big, manufacturing cost increases, and corresponding magnet cost also will increase.
The information disclosed in the background technology section is intended only to increase the understanding to the general background of the utility model, and
It is not construed as recognizing or implying in any form that information composition is already known to those of ordinary skill in the art existing
Technology.
Utility model content
The arbor support with step shape that the purpose of this utility model is to provide a kind of, to overcome the core of the prior art
Bone support body product disadvantage big, at high cost.
To achieve the above object, the utility model provides a kind of arbor support with step shape, and arbor support is installed on
In lower core box, arbor support is four layers of step structure, and four layers of step structure include: first layer step, is set to the top of arbor support
Portion, first layer step is used to be through on arbor, and supports arbor by the bottom of first layer step；Second layer step, setting
In the lower section of first layer step, second layer step has pattern draft, to demould；Third layer step is arranged in the second layer
The lower section of step, the positioning for arbor support；And the 4th layer of step, the lower section of third layer step is set, for fixing
In lower core box；Wherein, it is provided with relief hole corresponding with first layer step on arbor, relief hole does not penetrate through arbor, and first
The length of layer step is arranged to when first layer step penetrates in relief hole, and the bottom of first layer step can withstand on arbor
On, to prevent arbor from overturning or shifting under the impact of sand flow.
In a preferred embodiment, the root of first layer step and second layer step is provided with fillet, is answered with reducing
Power is concentrated.
In a preferred embodiment, the corresponding position of lower core box is additionally provided with counterbore corresponding with third layer step,
With the positioning supportted for arbor.
In a preferred embodiment, the 4th layer of step is provided with screw thread, and the corresponding position of lower core box is provided with accordingly
Threaded hole so that the 4th layer of step is capable of fixing in threaded hole.
Compared with prior art, the arbor support according to the present utility model with step shape has the following beneficial effects:
(1) arbor support penetrates in arbor, is effectively prevented arbor shift position in use.
(2) arbor support is reduced costs without design magnet to reduce the use of magnet.
(3) arbor support is small in size, is not take up the too many area of mold cavity, can be optionally arranged on mold.
(4) arbor support structure is simple, easy to manufacture, easy to operate, at low cost, can improve the yield rate of sand core significantly.
(5) arbor of the utility model is supportted especially suitable for that can guarantee on the arbor that volume is big, weight is big, hollow
Arbor is mounted on the correct position of mold, thus reduce due to arbor shifts and the phenomenon that cause sand core to be scrapped, Jin Erti
High sand core yield rate, improves production efficiency.
Detailed description of the invention
Fig. 1 is arbor support and the structural schematic diagram of arbor of the prior art.
Fig. 2 is the structural schematic diagram of the arbor support according to the present utility model with step shape.
Fig. 3 is that arbor according to the present utility model supports the schematic diagram being mounted in lower core box.
Fig. 4 is the schematic diagram that arbor according to the present utility model is mounted in arbor support.
Fig. 5 is the schematic diagram that sand grains wraps arbor in coremaking supportted using the arbor of the utility model.
Fig. 6 is the signal that the former arbor support position formation pit on sand core after molding is supportted using the arbor of the utility model
Figure.
Main appended drawing reference explanation:
The support of 1- arbor, 11- first layer step, 12- second layer step, 13- third layer step, the 4th layer of step of 14-, 15-
Fillet, 2- arbor, 4-U type groove, 5- magnet mounting hole, 6- magnet, 7- lower core box, 8- sand core, 9- pit.
Specific embodiment
With reference to the accompanying drawing, specific embodiment of the present utility model is described in detail, it is to be understood that this is practical
Novel protection scope is not limited by the specific implementation.
Unless otherwise explicitly stated, otherwise in entire disclosure and claims, term " includes " or its change
Changing such as "comprising" or " including " etc. will be understood to comprise stated element or component, and not exclude other members
Part or other component parts.
As shown in Fig. 2, the arbor support 1 with step shape according to the preferred embodiments of the present invention is installed on lower core
On box, arbor support 1 is four layers of step structure, and four layers of step structure include: first layer step 11, second layer step 12, third layer
Step 13 and the 4th layer of step 14.Wherein, first layer step 11 is set to the top of arbor support 1, and first layer step 11 is used to
It is through on arbor 2, and arbor 2 is supported by the bottom of first layer step 11.Second layer step 12 is arranged in first layer step 11
Lower section, second layer step 11 have pattern draft, so as to be easy demoulding.Second layer step 12 is arranged in third layer step 13
Lower section, the positioning for arbor support 1.The lower section of third layer step 13 is arranged in 4th layer of step 14, for being fixed on lower core box
On.Wherein, relief hole corresponding with first layer step 11 is provided on arbor 2, relief hole does not penetrate through arbor 2, first layer platform
The length of rank 11 is arranged to when first layer step 11 penetrates in relief hole, and the bottom of first layer step 11 can withstand on arbor
On 2, to prevent arbor 2 from overturning or shifting under the impact of sand flow.
In above scheme, the corresponding position of lower core box is provided with counterbore corresponding with third layer step 13, to be used for arbor
The positioning of support 1.4th layer of step 14 is provided with screw thread, and the corresponding position of lower core box is provided with corresponding threaded hole, so that the
Four layers of step 14 are capable of fixing in threaded hole.
In a preferred embodiment, the root of first layer step 11 and second layer step 12 is provided with fillet 15, with
It reduces stress to concentrate, arbor support 1 is prevented to be broken in use.Every arbor 2 needs two above-mentioned arbor supports 1 to support,
So that arbor 2 can be smoothly fixed in arbor support 1.
As shown in Figure 3-4, the application method of the above-mentioned arbor support with step shape, includes the following steps to carry out coremaking: first
First, before coremaking, arbor support 1 is mounted in lower core box 7, and is molded after arbor 2 is mounted in arbor support 1；When coremaking, sand is used
Grain filling mold inner-cavity forms sand core 8, and sand grains wraps arbor 2, as shown in Figure 5；When molding, sand core 8 is in lower plunger tip bar
Under the action of leave lower core box 7, sand core 8, arbor 2 and arbor support 1 are detached from, and the position of former arbor support forms pit 9 on sand core 8,
As shown in Figure 6；After plunger tip demoulding, sand core 8 is taken out, and block pit 9 with self-hardening sand；And arbor 2 is placed on arbor support 1 again
On, it prepares for coremaking next time.
In above scheme, arbor 2 is supported by two arbor supports 1, so that arbor 2 can smoothly be fixed on arbor support
On 1.The above-mentioned arbor support with step shape is four layers of step structure, and four layers of step structure include: first layer step, setting
In the top of arbor support, first layer step is used to be through on arbor, and supports arbor by the bottom of first layer step；The second layer
The lower section of first layer step is arranged in step, and second layer step has pattern draft, to demould；Third layer step, sets
Set the positioning in the lower section of second layer step, for arbor support；And the 4th layer of step, it is arranged under third layer step
Side, for being fixed on lower core box；Wherein, relief hole corresponding with first layer step is provided on arbor, relief hole does not pass through
Obturator bone, the length of first layer step are arranged to when first layer step penetrates in relief hole, the bottom energy of first layer step
It enough withstands on arbor, to prevent arbor from overturning or shifting under the impact of sand flow.
In a preferred embodiment, the 4th layer of step is provided with screw thread, and the corresponding position of lower core box is provided with accordingly
Threaded hole, the corresponding position of lower core box is additionally provided with counterbore corresponding with third layer step.Arbor support is mounted on lower core box
On, and arbor is mounted in arbor support specifically: the third layer step of arbor support is arranged in counterbore to position arbor support, and
4th layer of step is threadedly secured in threaded hole, first layer step penetrates in relief hole, and passes through first layer step
Bottom is withstood on arbor.The root of first layer step and second layer step is provided with fillet, to reduce stress concentration.
The description of the aforementioned specific exemplary embodiment to the utility model is in order to illustrate and illustration purpose.These
Description is not wishing to for the utility model to be limited to disclosed precise forms, and it will be apparent that according to the above instruction, can carry out
It is many to change and change.The purpose of selecting and describing the exemplary embodiment is that explaining the specific principle of the utility model
And its practical application, so that those skilled in the art can be realized and utilize a variety of different examples of the utility model
Property embodiment and various chooses and changes.The scope of the utility model is intended to by claims and its waits similar shapes
Formula is limited.
Claims (4)
1. a kind of arbor support with step shape, which is characterized in that the arbor support is installed in lower core box, the arbor support
For four layers of step structure, four layers of step structure includes:
First layer step is set to the top of the arbor support, and the first layer step is used to be through on arbor, and passes through institute
The bottom for stating first layer step supports the arbor；
The lower section of the first layer step is arranged in second layer step, and the second layer step has pattern draft, to take off
Mould；
The lower section of the second layer step is arranged in third layer step, the positioning for arbor support；And
4th layer of step, is arranged in the lower section of the third layer step, for being fixed on the lower core box；
Wherein, relief hole corresponding with the first layer step is provided on the arbor, the relief hole does not penetrate through described
Arbor, the length of the first layer step are arranged to when the first layer step penetrates in the relief hole, and described first
The bottom of layer step can be withstood on the arbor, to prevent the arbor from overturning or shifting under the impact of sand flow.
2. arbor support according to claim 1, which is characterized in that the root of the first layer step and the second layer step
Portion is provided with fillet, to reduce stress concentration.
3. arbor according to claim 1 support, which is characterized in that the corresponding position of the lower core box be additionally provided with it is described
The corresponding counterbore of third layer step, with the positioning supportted for the arbor.
4. arbor support according to claim 1, which is characterized in that the 4th layer of step is provided with screw thread, the lower core
The corresponding position of box is provided with corresponding threaded hole, so that the 4th layer of step is capable of fixing in the threaded hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820851332.4U CN208288935U (en) | 2018-06-04 | 2018-06-04 | Arbor support with step shape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820851332.4U CN208288935U (en) | 2018-06-04 | 2018-06-04 | Arbor support with step shape |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208288935U true CN208288935U (en) | 2018-12-28 |
Family
ID=64722529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820851332.4U Expired - Fee Related CN208288935U (en) | 2018-06-04 | 2018-06-04 | Arbor support with step shape |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208288935U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108480567A (en) * | 2018-06-04 | 2018-09-04 | 广西玉柴机器股份有限公司 | Arbor support with step shape and its application method |
-
2018
- 2018-06-04 CN CN201820851332.4U patent/CN208288935U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108480567A (en) * | 2018-06-04 | 2018-09-04 | 广西玉柴机器股份有限公司 | Arbor support with step shape and its application method |
| CN108480567B (en) * | 2018-06-04 | 2023-11-07 | 广西玉柴机器股份有限公司 | Core skeleton support with step shape and use method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181228 |
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| CF01 | Termination of patent right due to non-payment of annual fee |