CN206662250U - Cast sandbox circulation conveying line - Google Patents
Cast sandbox circulation conveying line Download PDFInfo
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- CN206662250U CN206662250U CN201720459397.XU CN201720459397U CN206662250U CN 206662250 U CN206662250 U CN 206662250U CN 201720459397 U CN201720459397 U CN 201720459397U CN 206662250 U CN206662250 U CN 206662250U
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Abstract
A kind of casting sandbox circulation conveying line is the utility model is related to, it includes sand processing pipeline, cooling pipeline and two turnover lines；Sand is handled and is respectively provided with the delivery track of one or more on pipeline and cooling pipeline, and multiple sandboxes are arranged in order on delivery track；Tote cart is slidably fitted with turnover line, the complete rotation track that can be connected with delivery track is equipped with tote cart, being provided with tote cart can be pushed into sandbox from complete rotation track the first sandbox delivery device of delivery track, first sandbox delivery device includes the first push oil cylinder set installed in complete rotation track sidepiece and with parallel track, the top of first push oil cylinder is slidably fitted with slide plate, the front end of slide plate is connected with vertical balladeur train, the piston rod front end of first push oil cylinder is hinged with vertical balladeur train, the rear end of slide plate is connected with the first push pedal, first push pedal leans out to both sides and reaches the top of complete rotation track.The utility model, which has, conveys the advantages of reliable and stable, manipulation is flexible and service life is long.
Description
Technical field
Dry sand cavityless casting field is the utility model is related to, specifically a kind of casting sandbox circulation conveying line.
Background technology
In dry sand cavityless casting, drystone sand is inserted in sandbox first, drystone will be embedded to by sand mo(u)ld made of molding sand
In sand, then by molten iron casting in sand mo(u)ld, after moulding by casting, sand mo(u)ld is damaged, workpiece is taken away.After workpiece is taken away
In sandbox, the doping such as steel sand that dry sand, broken sand mo(u)ld and cast are formed is together.In actual production, it is necessary to first by sandbox
Empty, then obtain new dry sand from dry sand storehouse and insert in sky sandbox and continue casting manipulations, what is cleared out from sandbox carries
The dry sand of impurity is then unified heap and put away in case subsequent treatment.
In traditional handicraft, because dry sand can not be re-used directly so that whole technique can not form the production line of circulation,
Low production efficiency.Based on above mentioned problem, inventor applied in 2014 and an entitled " casting was authorized in 2016
The patent of invention of dry sand cycling and reutilization production line ", Patent No. " 201410548790.7 ", in the patent of invention, by setting
Sand processing line is put, completion workpiece is removed stage makeup and costume on sand processing line, sandbox is emptied and dry sand is filled automatically, in the side of sand processing line
Multi-stage screening processing directly is carried out to dry sand waste material, operation is filled to the sandbox of emptying again after obtaining pure dry sand, by
In with the addition of waste and old dry sand recovery process, and sand is handled into line and cooling pipeline linking by two turnover pipelines so that
Dry sand cavityless casting technique can form closed loop, can circulate production.
In above-mentioned production line, the circulation conveying of sandbox is the basis entirely circulated.For the circulation conveying of sandbox, in sand
Delivery track is set on processing line and cooling pipeline, spacer is respectively set on the front and rear end wall of sandbox, one, sandbox is close to
One be arranged on delivery track, has enough to meet the need and is slidably fitted with tote cart on line, complete rotation track is set on tote cart.In conveyor track
The wherein one end in road, after the complete rotation track on the end tote cart docks with delivery track, had enough to meet the need by the delivery track other end
One or two sandbox is pushed on the complete rotation track of tote cart by the sandbox delivery device on car.
For sandbox delivery device, it includes pushing oil cylinder, vertical affixed bumping post in two side walls of sandbox, push oil
Cylinder promotes bumping post then to promote sandbox, and bumping post also also serves as lifting post during sandbox lifting upset.Due to the sand on whole piece pipeline
Case relies on push oil cylinder pushing, and the power for pushing oil cylinder is all applied on the bumping post of front end, and the bumping post bears high intensity
Thrust, after long-time use, bumping post is easily deformed or even damaged.Simultaneously as bumping post is located in the side wall of sandbox rather than in sand
On case, therefore, the thrust that sandbox body is subject to causes the stress of sandbox unstable, influences the reliability of conveying via torque transmission.
Above mentioned problem, the sandbox size that the sand mo(u)ld of some big specifications is equipped with is larger, the loading of dry sand also with
Increase, cause the increase of sandbox weight, tens sandboxes of often arranging on whole piece delivery track, simple pushing away by wherein one end
Oil cylinder is sent to reduce as power, oil cylinder load increase, oil cylinder service life, even oil cylinder overloading occur when serious, cause
Whole production line is paralysed.Further, since delivery track and complete rotation track are dynamical linkages, often exist in the junction of track
Gap or difference in height, when sandbox is transported between complete rotation track and delivery track, pushing the load of oil cylinder further increases.
Based on above mentioned problem, inventor develops a kind of more stable reliable casting sandbox circulation conveying line, with true
Protect the continual and steady operation of whole piece dry sand cavityless casting production line.
Utility model content
The technical problems to be solved in the utility model is to provide that a kind of conveying is reliable and stable, manipulation is flexible, using the longevity
Order long casting sandbox circulation conveying line.
In order to solve the above technical problems, casting sandbox circulation conveying line of the present utility model includes sand processing pipeline, cold
But pipeline and two turnover lines, two turnover lines form the tandem array that sand handles pipeline and cools down pipeline for defeated
Send the circulation conveying loop of sandbox；Sand handles and is respectively provided with the delivery track of one or more on pipeline and cooling pipeline, conveys
Multiple sandboxes are arranged in order on track；Tote cart is slidably fitted with turnover line, being equipped with tote cart can hold in the mouth with delivery track
The complete rotation track connect, the first sandbox delivery device that sandbox can be pushed into delivery track from complete rotation track is installed on tote cart,
It is structurally characterized in that first that the first sandbox delivery device includes setting installed in complete rotation track sidepiece and with parallel track
Oil cylinder is pushed, the top of the first push oil cylinder is slidably fitted with slide plate, and the front end of slide plate is connected with vertical balladeur train, the first push oil
The piston rod front end of cylinder is hinged with vertical balladeur train, and the rear end of slide plate is connected with the first push pedal, and the first push pedal leans out and stretched to both sides
To the top of complete rotation track.
Using said structure, sand processing line typically sets at least two delivery tracks, corresponding, and cooling pipeline is also provided with
At least two delivery tracks, therefore, sandbox delivery device generally correspond to drive two delivery tracks, and first in the utility model
Oil cylinder is pushed by slide plate and the slide construction of vertical balladeur train, drives the first push pedal to move forward and backward, the first push pedal and complete rotation track
Along corresponding on the tank wall of cope, namely the thrust of the first push pedal is acted directly on sandbox body, so as to can guarantee that sandbox
Stress is steady, ensures the stability of conveying.
Chute is installed at the top of the first push oil cylinder, the slide plate slides are arranged in chute.Slide plate passes through cunning
The structure installation of groove, chute plays to slide plate to be oriented to and spacing effect, between chute and slide plate can also installation site sensor,
So as to be automatically controlled to the first push the flexible of oil cylinder.
The bottom of the vertical balladeur train is provided with the first positioning disk roller, and the sidepiece of delivery track is laid with setting parallel with it
And the first positioning track coordinated with the first registration roller slipping.First positioning track be arranged in parallel with delivery track, and first is fixed
Position disk roller is slidably matched with the first positioning track, and the first positioning track plays guide effect, can be further ensured that the slip of slide plate
Direction is consistent with the glide direction of sandbox, avoids the thrust of push pedal from glancing off, and ensures sandbox stress balance.
Fixed seat is set on the tote cart, and the rear end of the first push oil cylinder is hinged in fixed seat, installed on tote cart
There is the support base for supporting the first push cylinder block.First push oil cylinder uses the mounting structure of radial type, pushes oil cylinder
And sled drive mechanism can be started entirely, easy disassembly and maintenance.
Sand processing pipeline and/or cool down on pipeline the opening position close to turnover line be provided with can by sandbox from
Delivery track is pushed into the second sandbox delivery device of complete rotation track.Second sandbox delivery device is set, and it can be pushed away with the first sandbox
Send mechanism to be used cooperatively, provide power jointly for the slip of sandbox, several sandboxes of front end can be also operated alone in it, by sandbox
It is pushed to from delivery track on complete rotation track, to overcome the resistance of track junction, reduces the first sandbox delivery device
Load pressure, ensure that dynamical stability is reliable and improves service life of equipment.
The second sandbox delivery device includes the second push set installed in delivery track sidepiece and with parallel track
Oil cylinder, the second push oil cylinder is erected at the opening position that level height is higher than sandbox top edge, before second pushes the piston rod of oil cylinder
End is connected with the second push pedal, and the second push pedal leans out to both sides and reaches the top of delivery track, at the top of the second push pedal front face
Both sides are cut with scissors respectively fills one piece of the 3rd push pedal, the 3rd push pedal be flipped up after in tilting backwards state and by the top edge of the second push pedal
Spacing, the 3rd push pedal downwardly turns over and with the second push pedal pairing and its bottom along the bottom edge for leaning out the second push pedal.Due to each bar
Space between delivery track is limited, and therefore, whole delivery device is set up aloft.Second pushes hydraulic oil cylinder driving push pedal to reach
It is dynamic, wherein, the second push pedal is fixed plate, and the 3rd push pedal is hinged on the top of the second push pedal, and the 3rd push pedal pushes away installed in second
On the front panel of plate, the second be hinged push pedal and the 3rd push pedal form combination push pedal, when the 3rd push pedal is turned to bottom, its bottom
End is along the top edge that can just be withstood on sandbox, and now the 3rd push pedal can freely be overturn forward, backward then by the second push pedal
Limitation, therefore, only the thrust to sandbox offer forward, combination push pedal slide backward normal to sandbox during reset for the combination push pedal
Being fed forward does not influence.It can be seen that on the basis of this kind combines plate pushing structure, the control to the second push oil cylinder can be more
Flexibly and easily, the second push oil cylinder can be started in good time in the case where the first sandbox delivery device normally pushes operation, to carry
For auxiliary power, certainly, the second push oil cylinder also can continuous action, thrust is persistently provided for several sandboxes of front end, with side
Help sandbox to overcome the resistance of track junction, the normal conveying of other sandboxes on delivery track will not be had any impact.
In addition, the 3rd push pedal respectively installs one piece in the both sides of the second push pedal, thrust can be provided to the sandbox on two delivery tracks simultaneously.
Anterior set up of the second push oil cylinder has the second positioning track, and the second positioning track is parallel with delivery track to be set
Put, the second positioning disk roller coordinated with the second positioning track is installed in the middle part of the second push pedal.Second positioning track is used to be oriented to,
Ensure combination push pedal thrust direction it is consistent with the traffic direction of sandbox, avoid the thrust of push pedal from glancing off, ensure sandbox by
Dynamic balance.
In summary, the utility model, which has, conveys the advantages of reliable and stable, manipulation is flexible and service life is long.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and detailed description：
Fig. 1 is the overall structure diagram of the one of working condition of the utility model；
Fig. 2 is the overall structure diagram of another working condition of the utility model；
Fig. 3 is the overall structure diagram of another working condition of the utility model；
Fig. 4 is A portions mplifying structure schematic diagram in Fig. 1；
Fig. 5 is B portions mplifying structure schematic diagram in Fig. 1；
Fig. 6 is E portions mplifying structure schematic diagram in Fig. 5；
Fig. 7 is C portions mplifying structure schematic diagram in Fig. 1；
Fig. 8 is D portions mplifying structure schematic diagram in Fig. 3；
Fig. 9 is F portions mplifying structure schematic diagram in Fig. 8；
Figure 10 is the structural representation under the first sandbox delivery device idle condition；
Figure 11 is the structural representation under the first sandbox delivery device push state；
Figure 12 is the structural representation under the second sandbox delivery device idle condition；
Figure 13 is the structural representation under the second sandbox delivery device push state.
Embodiment
Referring to the drawings, casting sandbox circulation conveying line of the present utility model includes sand processing pipeline 1, cooling pipeline 2
With two turnover lines 3, two turnover lines 3 form the tandem array that sand handles pipeline 1 and cools down pipeline 2 for conveying sand
The circulation conveying loop of case 4.Wherein, the conveying direction of sandbox 4 as shown by arrows in FIG., cool down pipeline 2 entry position at
Set pouring area M, sand processing line on 1 set gradually workpiece remove stage makeup and costume area N, sandbox empty area R and dry sand fill area S.Sand processing
The delivery track 6 of one or more is respectively provided with pipeline 1 and cooling pipeline 2, multiple sandboxes 4 are arranged in order on delivery track 6.
In general, a strip transmission line set two delivery tracks 6, and whole piece producing line typically sets a sand to handle pipeline, due to cast
After the completion of need the one-step cooling time, therefore, whole piece producing line set it is a plurality of cooling pipeline 2.
Referring to the drawings, have enough to meet the need on line 3 and be slidably fitted with tote cart 5, being equipped with tote cart 5 can be connected with delivery track 6
Complete rotation track 7, the first sandbox pusher that sandbox 4 can be pushed into delivery track 6 from complete rotation track 7 is installed on tote cart 5
Structure, the first sandbox delivery device include the first push oil cylinder 8 set installed in the sidepiece of complete rotation track 7 and with parallel track, the
The top of one push oil cylinder 8 is slidably fitted with slide plate 9, and the front end of slide plate 9 is connected with vertical balladeur train 10, the first push oil cylinder 8
Piston rod front end is be hinged with vertical balladeur train 10, and the rear end of slide plate 9 is connected with the first push pedal 11, and the first push pedal 11 is leant out simultaneously to both sides
Reach the top of complete rotation track 7.
In said structure, sand processing line 1 typically sets at least two delivery tracks 6, corresponding, and cooling pipeline 2 is also set
At least two delivery tracks 6 are put, therefore, sandbox delivery device generally corresponds to drive two delivery tracks 6, the first push oil cylinder 8
By slide plate 9 and the slide construction of vertical balladeur train 10, drive the first push pedal 11 movable, the first push pedal 11 and complete rotation track 7
Along corresponding on the tank wall of cope 4, namely the thrust of the first push pedal 11 is acted directly on the body of sandbox 4, so as to can guarantee that
The stress of sandbox 4 is steady, ensures the stability of conveying.
Referring to the drawings, the top of the first push oil cylinder 8 is provided with chute 12, and slide plate 9 is slidably mounted in chute 12.Slide plate
9 are installed by the structure of chute 12, and chute 12 plays guiding and spacing effect to slide plate 9, may be used also between chute 12 and slide plate 9
Installation site sensor, so as to be automatically controlled to the first push the flexible of oil cylinder.For position sensor, it can be used
Photoelectric sensor or hall sensor, its settable two, it is respectively used to the stretching of positional cylinder, contract two states, its tool
The mounting structure of body is prior art, be will not be repeated here.
Referring to the drawings, the bottom of vertical balladeur train 10 is provided with the first positioning disk roller 13, the sidepiece of delivery track 6 be laid with
Be arranged in parallel and with first the first positioning track 14 for being slidably matched of positioning disk roller 13.First positioning track 14 and delivery track
6 be arranged in parallel, and the first positioning disk roller 13 is slidably matched with the first positioning track 14, and the first positioning track 14 plays guide effect,
It can be further ensured that the glide direction of slide plate 9 is consistent with the glide direction of sandbox 4, avoid the thrust of the first push pedal 11 from occurring partially
Tiltedly, the stress balance of sandbox 4 is ensured.
Referring to the drawings, fixed seat 15 is set on tote cart 5, and the rear end of the first push oil cylinder 8 is hinged in fixed seat 15, week
Change trains or buses that the support base 16 for supporting the first push cylinder body of oil cylinder 8 is installed on 5.First push oil cylinder 8 uses the peace of radial type
Assembling structure, the first push oil cylinder 8 and sled drive mechanism can be started entirely, easy disassembly and maintenance.
Referring to the drawings, sand processing pipeline 1 and/or cool down on pipeline 2 that be provided with can in the opening position close to turnover line
Sandbox 4 is pushed into the second sandbox delivery device of complete rotation track 7 from delivery track 6.Second sandbox delivery device can be with the first sand
Case delivery device is used cooperatively, and common to provide power for the conveying of sandbox 4, several sandboxes of front end can be also operated alone in it, will
Sandbox 4 is pushed on complete rotation track 7 from delivery track 6, to overcome the resistance of track junction, reduces the push of the first sandbox
The load pressure of mechanism, ensure that dynamical stability is reliable and improves service life of equipment.
Referring to the drawings, the second sandbox delivery device includes the set installed in the sidepiece of delivery track 6 and with parallel track
Two push oil cylinders 17, the second push oil cylinder 17 are erected at the opening position that level height is higher than the top edge of sandbox 4, the second push oil cylinder
17 piston rod front end is connected with the second push pedal 18, and the second push pedal 18 leans out to both sides and reaches the top of delivery track 6, and second
Both sides at the top of the front face of push pedal 18 are cut with scissors respectively fills one piece of the 3rd push pedal 19, and the 3rd push pedal 19 is ramp-like in retreating after being flipped up
State is simultaneously downwardly turned over along spacing, the 3rd push pedal 19 and visited with the pairing of the second push pedal 18 and its bottom edge by the top of the second push pedal 18
Go out the bottom edge of the second push pedal 18.
Because the space between each bar delivery track 6 is limited, therefore, whole second sandbox delivery device is set up aloft.
Second push oil cylinder 17 drives two push pedals to move forward, wherein, the second push pedal 18 is fixed plate, and the 3rd push pedal 19 is hinged on second
The top of push pedal 18, and the 3rd push pedal 19 is arranged on the front panel of the second push pedal 18, the second be hinged push pedal 18 and the 3rd pushes away
Plate 19 forms combination push pedal, and when the 3rd push pedal 19 is turned to bottom, its bottom edge can just withstand on the top edge with sandbox 5,
Now the 3rd push pedal 19 can freely be overturn forward, then be limited backward by the second push pedal 18, and therefore, sand is only given in the combination push pedal
Case 4 provides thrust forward, and combination push pedal is normally fed forward when sliding backward reset on sandbox 4 not to be influenceed.It can be seen that
On the basis of this kind combination plate pushing structure, the control to the second push oil cylinder 17 can be pushed away with more flexible and convenient in the first sandbox
Mechanism is sent to start the second push oil cylinder 17 in good time in the case of normally pushing operation, to provide auxiliary power, certainly, second
Push oil cylinder 17 also can continuous action, thrust is persistently provided for several sandboxes 4 of front end, to help sandbox 4 to overcome track to hold in the mouth
The resistance of socket part position, the normal conveying of other sandboxes 4 on delivery track 6 will not be had any impact.In addition, the 3rd push pedal 19
In respectively one piece of the installation of the both sides of the second push pedal 18, thrust can be provided to the sandbox 4 on two delivery tracks 6 simultaneously.
Referring to the drawings, anterior set up of the second push oil cylinder 17 has the second positioning track 20, the second positioning track 20 with it is defeated
Track 6 is sent to be arranged in parallel, the middle part of the second push pedal 18 is provided with the second positioning disk roller 21 coordinated with the second positioning track 20.The
Two positioning tracks 20 are used to be oriented to, and ensure that the thrust direction of combination push pedal is consistent with the traffic direction of sandbox 4, avoid pushing away for push pedal
Power glances off, and ensures the stress balance of sandbox 4.
In summary, the utility model is not limited to above-mentioned embodiment.Those skilled in the art, this reality is not being departed from
On the premise of with new spirit and scope, some change and modification can be done.The scope of protection of the utility model should be with this reality
It is defined with new claim.
Claims (7)
1. one kind casting sandbox circulation conveying line, including sand processing pipeline（1）, cooling pipeline（2）With two turnover lines
（3）, two turnover lines（3）Sand is handled into pipeline（1）With cooling pipeline（2）Tandem array formed for conveying sandbox
（4）Circulation conveying loop；Sand handles pipeline（1）With cooling pipeline（2）On be respectively provided with the delivery track of one or more
（6）, multiple sandboxes are arranged in order on delivery track（4）；Have enough to meet the need line（3）On be slidably fitted with tote cart（5）, tote cart（5）On
Being equipped with can be with delivery track（6）The complete rotation track of linking（7）, tote cart（5）On be provided with can be by sandbox（4）From complete rotation track
（7）It is pushed into delivery track（6）The first sandbox delivery device, it is characterized in that the first sandbox delivery device include be arranged on week
Transition road（7）Sidepiece and the first push oil cylinder set with parallel track（8）, the first push oil cylinder（8）Top be slidably installed
There is slide plate（9）, slide plate（9）Front end be connected with vertical balladeur train（10）, the first push oil cylinder（8）Piston rod front end with it is vertical sliding
Frame（10）It is be hinged, slide plate（9）Rear end be connected with the first push pedal（11）, the first push pedal（11）Leant out to both sides and reach inventory stock rails
Road（7）Top.
2. casting sandbox circulation conveying line as claimed in claim 1, it is characterized in that the first push oil cylinder（8）Top peace
Equipped with chute（12）, the slide plate（9）It is slidably mounted on chute（12）It is interior.
3. casting sandbox circulation conveying line as claimed in claim 1, it is characterized in that the vertical balladeur train（10）Bottom installation
There is the first positioning disk roller（13）, delivery track（6）Sidepiece be laid with it is parallel with it setting and with first positioning disk roller（13）It is sliding
Dynamic the first positioning track coordinated（14）.
4. casting sandbox circulation conveying line as claimed in claim 1, it is characterized in that the tote cart（5）Upper setting fixed seat
（15）, the first push oil cylinder（8）Rear end be hinged on fixed seat（15）On, tote cart（5）On be provided with and first pushed away for supporting
Send oil cylinder（8）The support base of cylinder body（16）.
5. the casting sandbox circulation conveying line as any one of claim 1-4, it is characterized in that the sand handles pipeline
（1）And/or cooling pipeline（2）On in the opening position close to turnover line, be provided with can be by sandbox（4）From delivery track（6）Push-in
Complete rotation track（7）The second sandbox delivery device.
6. casting sandbox circulation conveying line as claimed in claim 5, it is characterized in that the second sandbox delivery device includes peace
Mounted in delivery track（6）Sidepiece and the second push oil cylinder set with parallel track（17）, the second push oil cylinder（17）It is erected at
Level height is higher than sandbox（4）The opening position on top edge, the second push oil cylinder（17）Piston rod front end be connected with the second push pedal
（18）, the second push pedal（18）Leant out to both sides and reach delivery track（6）Top, the second push pedal（18）Two at the top of front face
Side is cut with scissors respectively fills one piece of the 3rd push pedal（19）, the 3rd push pedal（19）It is in tilt backwards state and by the second push pedal after being flipped up
（18）Top along spacing, the 3rd push pedal（19）Downwardly turn over and with the second push pedal（18）Pairing and its bottom are pushed away along leaning out second
Plate（18）Bottom edge.
7. casting sandbox circulation conveying line as claimed in claim 6, it is characterized in that the second push oil cylinder（17）Front portion
Erection has the second positioning track（20）, the second positioning track（20）With delivery track（6）It is arranged in parallel, the second push pedal（18）In
Portion is provided with and the second positioning track（20）The the second positioning disk roller coordinated（21）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720459397.XU CN206662250U (en) | 2017-04-28 | 2017-04-28 | Cast sandbox circulation conveying line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720459397.XU CN206662250U (en) | 2017-04-28 | 2017-04-28 | Cast sandbox circulation conveying line |
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| Publication Number | Publication Date |
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| CN206662250U true CN206662250U (en) | 2017-11-24 |
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ID=60371071
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720459397.XU Active CN206662250U (en) | 2017-04-28 | 2017-04-28 | Cast sandbox circulation conveying line |
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| CN (1) | CN206662250U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106984800A (en) * | 2017-04-28 | 2017-07-28 | 何德文 | Cast sandbox circulation conveying line |
| CN110170622A (en) * | 2019-06-24 | 2019-08-27 | 辽宁工程技术大学 | Cast iron forming transmission equipment |
-
2017
- 2017-04-28 CN CN201720459397.XU patent/CN206662250U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106984800A (en) * | 2017-04-28 | 2017-07-28 | 何德文 | Cast sandbox circulation conveying line |
| CN110170622A (en) * | 2019-06-24 | 2019-08-27 | 辽宁工程技术大学 | Cast iron forming transmission equipment |
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Effective date of registration: 20190712 Address after: 262300 Xilou Village, Gaoze Street, Wulian County, Rizhao City, Shandong Province Patentee after: Wulian Yuxing Machinery Manufacturing Co., Ltd. Address before: 262300 Xilou Village, Gaoze Town, Wulian County, Rizhao City, Shandong Province Patentee before: He Dewen |