CN104493949A - High-efficiency energy-saving reconstituted bamboo square stock automatic stripping machine and stripping method thereof - Google Patents
High-efficiency energy-saving reconstituted bamboo square stock automatic stripping machine and stripping method thereof Download PDFInfo
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- CN104493949A CN104493949A CN201410838900.3A CN201410838900A CN104493949A CN 104493949 A CN104493949 A CN 104493949A CN 201410838900 A CN201410838900 A CN 201410838900A CN 104493949 A CN104493949 A CN 104493949A
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- square stock
- bamboo square
- heavy bamboo
- cross beam
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
- B27N3/18—Auxiliary operations, e.g. preheating, humidifying, cutting-off
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- Manufacturing & Machinery (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The invention discloses a high-efficiency energy-saving reconstituted bamboo square stock automatic stripping machine. The machine comprises a host and a control system, wherein the host comprises a pedestal, a rack, a movable cross beam and a lifting oil cylinder; the rack is provided with a mold cavity for accommodating a mold; the bottom of the movable cross beam is provided with a press head which is abutted against the upper part of the mold; the rack is provided with a positioning cylinder for positioning the mold and a rear retaining rack which is matched with the positioning cylinder; a pin ejection oil cylinder and an ejection rod for ejecting a pin in the mold are also arranged on one side of the rack; the two ends of the movable cross beam are provided with a grabbing arm and a grabbing oil cylinder; the control system comprises an electric control system; the electric control system comprises a controller; an input end of the controller is connected with a PLC (Programmable Logic Controller) industrial control cabinet; an output end of the controller is in control connection with the positioning cylinder, the lifting oil cylinder, the pin ejection oil cylinder and the grabbing oil cylinder. By using the stripping machine, the reconstituted bamboo square stock stripping efficiency can be improved, and the service life of the mold is prolonged; the labor intensity of a worker is also reduced, the production efficiency is improved, and the production cost is reduced.
Description
Technical field
The invention belongs to bamboo product manufacture field, particularly relate to a kind of energy-efficient heavy bamboo square stock automatic demoulding machine and release method thereof.
Background technology
Heavy bamboo square stock to be colded pressing by many bamboo silks by heavy bamboo square stock forming machine or hot-forming, and this process need adopts mould just can complete as aid; But it will be taken out from mould after heavy bamboo square stock completes but is a hang-up, and pin and demoulding feeding are manually gone in current employing, not only waste time and energy, and also can affect workman's personal safety because of operational issue in knockout course; And adopt the old-fashioned ingot stripper demoulding, when out of stock nail, die side plate frequently closes by External Force Acting, causes mould fatigue damage, affects die life; Thus reduce demoulding efficiency and production efficiency, improve production cost.
Summary of the invention
The present invention is in order to solve the defect and deficiency that exist in above-mentioned prior art, and providing one can reduce labor strength, improves demoulding efficiency, can also protect mould, extends die life; Thus enhance productivity, reduce energy-efficient heavy bamboo square stock automatic demoulding machine and the release method thereof of production cost.
Technical scheme of the present invention: a kind of energy-efficient heavy bamboo square stock automatic demoulding machine, comprise main frame and control system, described main frame comprises base, be arranged on the frame on base, be arranged on the moved cross beam in frame and the hoist cylinder controlling moved cross beam lifting, described frame is provided with the die cavity holding mould, the pressure head on compression mould top, top is provided with bottom described moved cross beam, described frame is provided with the positioning cylinder of jig and coordinates the back partition frame of positioning cylinder, described frame side is also provided with ejector pin oil cylinder and the push rod of pin in ejection die, described moved cross beam two ends are provided with gripping arm and the material grasping oil cylinder of clamping mold, the bearing material bar of supporting heavy bamboo square stock is provided with above described ejector pin oil cylinder, described control system comprises electric control system and hydraulic control system, described electric control system comprises controller, the input of described controller connects PLC industrial control cabinet, the magnetic valve of the output control connection positioning cylinder of controller, the magnetic valve of hoist cylinder, the magnetic valve of ejector pin oil cylinder and the magnetic valve of material grasping oil cylinder.
Adopt ingot stripper of the present invention can improve heavy bamboo square stock demoulding efficiency, within average 40 seconds, automatically can deviate from a heavy bamboo square stock; Cover plate when while is out of stock on pressure head compaction mold is stressed, and pin loosens, thus reaches the object of automatic pin shedding, thus protection mould, extend die life; But also reduce the labour intensity of workman, improve production efficiency, reduce production cost.
Preferably, described frame side is provided with the bearing material cylinder controlling the action of bearing material bar and the pusher cylinder pushing heavy bamboo square stock, described bearing material cylinder is fixed in frame by a bearing material cylinder saddle, the magnetic valve of output control connection bearing material cylinder of described controller and the magnetic valve of pusher cylinder.
Heavy bamboo square stock after this kind of structure makes the demoulding can better be supported and push, thus ensures stability and the reliability of its demoulding, prevents the heavy bamboo square stock after the demoulding from dropping impaired or being worn and torn by other objects.
Preferably, described mold cavity bottoms is provided with some driven molds and enters roller in die cavity, and described ejector pin oil cylinder is fixed in frame by an ejector pin cylinder support, and described push rod is connected with frame by a pilot pin seat, and described positioning cylinder is arranged on pilot pin seat.
This kind of structure facilitates mould to enter the die cavity of ingot stripper, improves demoulding efficiency; And it is firm to make positioning cylinder install, and improves positioning precision and stability; Make ejector pin oil cylinder ejector pin more precisely steadily with reliable simultaneously.
Preferably, described frame top is provided with housiung separator, and the cylinder body of described hoist cylinder is fixed on housiung separator, and the piston rod of hoist cylinder is fixedly connected with moved cross beam, described frame both sides are provided with two root posts, and described moved cross beam is slidably connected on two root posts.
This kind of structure makes its overall structure more firm, and the demoulding is more reliable and more stable.
Preferably, described moved cross beam two ends are provided with gripping arm bearing, and described gripping arm is fixed on gripping arm bearing, and described gripping arm bearing is provided with balancing stand.
This kind of structure makes gripping arm, and promptly heavy bamboo square stock is more steadily reliable.
Preferably, described column is provided with guiding tooth bar, and described moved cross beam two ends are provided with the upper guide gear coordinating guiding tooth bar, and described balancing stand is provided with the lower guide gear coordinating guiding tooth bar.
This kind of structure makes moved cross beam move up and down more steadily reliably.
A release method for energy-efficient heavy bamboo square stock automatic demoulding machine, comprises the steps:
1) mould is advanced in the die cavity of ingot stripper, determine position location;
2) positioning cylinder action, mould is in die cavity inner position;
3) hoist cylinder action, promotes moved cross beam and compresses, the cover plate on mould to preset pressure down through pressure head;
4) ejector pin cylinder action, ejects pin;
5) material grasping: two material grasping cylinder actions, by two gripping arms by material promptly;
6) demoulding: moved cross beam is up under the effect of hoist cylinder, up by gripping arm band material, heavy bamboo square stock is separated with mould;
7) retainer cylinder action, retainer bar is to precalculated position;
8) material grasping cylinder action, control gripping arm and unclamp heavy bamboo square stock, heavy bamboo square stock drops on retainer bar;
9) pusher cylinder action, shifts heavy bamboo square stock onto assigned address; Complete a working cycles.
Preferably, need in described step 4) first to remove foreign material on pilot pin seat, prevent foreign material from blocking optoelectronic switch.
Preferably, need all pins all to eject in described step 5), after ejector pin oil cylinder all falls back on position, can material grasping action be carried out.
Preferably, in described step 5), material grasping power size can be realized by regulation relief valve, and during material grasping, will in the centre position of square stock end face bottom gripping arm.
Hinge structure of the present invention has following beneficial effect: 1. improve demoulding efficiency, within average 40 seconds, automatically can deviate from a heavy bamboo square stock; 2. protect mould, extend die life.Because cover plate during ejector pin is stressed, pin loosens, thus reaches the object of automatic pin shedding, avoids
When old-fashioned ingot stripper is out of stock, die side plate frequently closes by External Force Acting, causes mould fatigue damage, thus greatly extends die life; 3. greatly reduce the labour intensity of workman; Enhance productivity, reduce production cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is side partial sectional view of the present invention;
Fig. 3 is control block diagram in the present invention;
1. hoist cylinders in figure, 2. housiung separator, 3. moved cross beam, 4. gripping arm bearing, 5. balancing stand, 6. pressure head, 7. push rod, 8. pilot pin seat, 9. back partition frame, 10. roller, 11. bases, 12. columns, 13. positioning cylinders, 14. bearing material cylinder saddles, 15. ejector pin oil cylinders, 16. bearing material cylinders, 17. pusher cylinders, 18. hydraulic oil pumps, 19. gripping arms, 20. material grasping oil cylinders, 21. frames, 22. electric cabinets, 23. moulds, 24. die cavitys, 25. heavy bamboo square stocks, 26. bearing material bars, 27. ejector pin cylinder supports, guide gear on 31., 32. times guide gears, 33. guiding tooth bars.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further detailed explanation, but be not limiting the scope of the invention.
As Figure 1-3, a kind of energy-efficient heavy bamboo square stock automatic demoulding machine, comprise main frame, main frame comprises base 11, frame 21 is on the pedestal 11 set, be arranged on the moved cross beam 3 in frame 21 and the hoist cylinder 1 controlling moved cross beam 3 lifting, frame 21 is provided with the die cavity 24 holding mould 23, the pressure head 6 on compression mould 23 top, top is provided with bottom moved cross beam 3, frame 21 is provided with the positioning cylinder 13 of jig 23 and coordinates the back partition frame 9 of positioning cylinder 13, frame 21 side is also provided with ejector pin oil cylinder 15 and the push rod 7 of pin in ejection die 23, moved cross beam 3 two ends are provided with gripping arm 19 and the material grasping oil cylinder 20 of clamping mold 23, the bearing material bar 26 of supporting heavy bamboo square stock 25 is provided with above ejector pin oil cylinder 15, control system comprises electric control system and hydraulic control system, electric control system comprises controller, the input of controller connects PLC industrial control cabinet, the magnetic valve of the output control connection positioning cylinder 13 of controller, the magnetic valve of hoist cylinder 1, the magnetic valve of ejector pin oil cylinder 15 and the magnetic valve of material grasping oil cylinder 20.Frame 21 side is provided with the bearing material cylinder 16 controlling the action of bearing material bar 26 and the pusher cylinder 17 pushing heavy bamboo square stock 25, bearing material cylinder 16 is fixed in frame 21 by a bearing material cylinder saddle 14, the magnetic valve of output control connection bearing material cylinder 16 of controller and the magnetic valve of pusher cylinder 17.Be provided with some driven molds 23 bottom die cavity 24 and enter roller 10 in die cavity 24, ejector pin oil cylinder 15 is fixed in frame 21 by an ejector pin cylinder support 27, and push rod 7 is connected with frame 21 by a pilot pin seat 8, and positioning cylinder 13 is arranged on pilot pin seat 8.Frame 21 top is provided with housiung separator 2, and the cylinder body of hoist cylinder 1 is fixed on housiung separator 2, and the piston rod of hoist cylinder 1 is fixedly connected with moved cross beam 3, and frame 21 both sides are provided with two root posts 12, and moved cross beam 3 is slidably connected on two root posts 12.Moved cross beam 3 two ends are provided with gripping arm bearing 4, and gripping arm 19 is fixed on gripping arm bearing 4, and gripping arm bearing 4 is provided with balancing stand 5.Column 12 is provided with guiding tooth bar 33, and moved cross beam 3 two ends are provided with the upper guide gear 31 coordinating guiding tooth bar 33, and balancing stand 5 is provided with the lower guide gear 32 coordinating guiding tooth bar 33.
A release method for energy-efficient heavy bamboo square stock automatic demoulding machine, comprises the steps:
1) mould is advanced in the die cavity of ingot stripper, determine position location;
2) positioning cylinder action, mould is in die cavity inner position;
3) hoist cylinder action, promotes moved cross beam and compresses, the cover plate on mould to preset pressure down through pressure head;
4) ejector pin cylinder action, ejects pin;
5) material grasping: two material grasping cylinder actions, by two gripping arms by material promptly;
6) demoulding: moved cross beam is up under the effect of hoist cylinder, up by gripping arm band material, heavy bamboo square stock is separated with mould;
7) retainer cylinder action, retainer bar is to precalculated position;
8) material grasping cylinder action, control gripping arm and unclamp heavy bamboo square stock, heavy bamboo square stock drops on retainer bar;
9) pusher cylinder action, shifts heavy bamboo square stock onto assigned address; Complete a working cycles.
Need in step 4) first to remove foreign material on pilot pin seat, prevent foreign material from blocking optoelectronic switch.
Need all pins all to eject in step 5), after ejector pin oil cylinder all falls back on position, can material grasping action be carried out.
In step 5), material grasping power size can be realized by regulation relief valve, and during material grasping, will in the centre position of square stock end face bottom gripping arm.
The circuit of electric control system of the present invention and hydraulic control system, gas circuit and oil circuit run and are conventional operation method.Electric control system is arranged in electric cabinet, and hydraulic system is a hydraulic oil pump being arranged on upper rack, and it provides dynamic foundation with motor, uses hydraulic oil pump to be pressure by changes mechanical energy, promotes hydraulic oil.Change the flow direction of hydraulic oil by controlling various valve, thus promote the action that hydraulic cylinder (hoist cylinder, material grasping oil cylinder and ejector pin oil cylinder) makes different stroke, different directions, complete the action needs that various equipment is different.Controller in the present invention is controlled by the PLC industrial control cabinet of routine, and then output signal controls the magnetic valve action of the magnetic valve of hoist cylinder, the magnetic valve of material grasping oil cylinder, the magnetic valve of ejector pin oil cylinder, the magnetic valve of positioning cylinder, the magnetic valve of bearing material cylinder and pusher cylinder.
Important technological parameters of the present invention
1) hoist cylinder 80 × 450 2;
2) ejector pin oil cylinder 40 × 230 23;
3) material grasping oil cylinder 90 × 80 2;
4) cylinder positioning cylinder: SC63 × 50/2, pusher cylinder: SC63 × 400/2: bearing material cylinder: SC80 × 320/2;
5) equipment general power 11KW;
6) working cycles 40 seconds;
7) system maximum working (operation) pressure (MWP) 25MPa;
8) system nominal uses pressure 10-12MPa;
9) weight 3500Kg;
10) supply voltage 380V;
11) contour size of the unit(s) length × wide × high=2512 × 1489 × 2410;
When the present invention uses, need be arranged on level, firm mattess, centering, require feed end comparatively discharge end height 10mm, then fix with foundation bolt.
The present invention checks item before operation:
1) die cover plate position is in a mold checked: in actual mould pressing process, the deviation L≤40mm of patch ends opposing mold end;
2) mould is before entering ingot stripper, for ensureing accurate positioning, and the length that first pin (if do not had, add) front end of locating is stretched out: L >=25mm;
3) forbid that the mould different from ingot stripper pilot pin seat ejector pin centre-to-centre spacing uses same ingot stripper.
Points for attention after end of run of the present invention:
1) cut off the electricity supply.
2) foreign material on ingot stripper are cleared out.
Maintenance of the present invention:
1) gear, tooth bar every workday check, regular grease up.
2) bearing pump nozzle to be annotated a lubricating grease (nitro fat) every 15 working days.
Hinge structure of the present invention has following beneficial effect: 1. improve demoulding efficiency, within average 40 seconds, automatically can deviate from a heavy bamboo square stock; 2. protect mould, extend die life.Because cover plate during ejector pin is stressed, pin loosens, thus reaches the object of automatic pin shedding, avoids
When old-fashioned ingot stripper is out of stock, die side plate frequently closes by External Force Acting, causes mould fatigue damage, thus greatly extends die life; 3. greatly reduce the labour intensity of workman; Enhance productivity, reduce production cost.
Claims (10)
1. an energy-efficient heavy bamboo square stock automatic demoulding machine, comprise main frame and control system, it is characterized in that: described main frame comprises base, be arranged on the frame on base, be arranged on the moved cross beam in frame and the hoist cylinder controlling moved cross beam lifting, described frame is provided with the die cavity holding mould, the pressure head on compression mould top, top is provided with bottom described moved cross beam, described frame is provided with the positioning cylinder of jig and coordinates the back partition frame of positioning cylinder, described frame side is also provided with ejector pin oil cylinder and the push rod of pin in ejection die, described moved cross beam two ends are provided with gripping arm and the material grasping oil cylinder of clamping mold, the bearing material bar of supporting heavy bamboo square stock is provided with above described ejector pin oil cylinder, described control system comprises electric control system and hydraulic control system, described electric control system comprises controller, the input of described controller connects PLC industrial control cabinet, the magnetic valve of the output control connection positioning cylinder of controller, the magnetic valve of hoist cylinder, the magnetic valve of ejector pin oil cylinder and the magnetic valve of material grasping oil cylinder.
2. the energy-efficient heavy bamboo square stock automatic demoulding machine of one according to claim 1; it is characterized in that: described frame side is provided with the bearing material cylinder controlling the action of bearing material bar and the pusher cylinder pushing heavy bamboo square stock; described bearing material cylinder is fixed in frame by a bearing material cylinder saddle, the magnetic valve of output control connection bearing material cylinder of described controller and the magnetic valve of pusher cylinder.
3. the energy-efficient heavy bamboo square stock automatic demoulding machine of one according to claim 2; it is characterized in that: described mold cavity bottoms is provided with some driven molds and enters roller in die cavity; described ejector pin oil cylinder is fixed in frame by an ejector pin cylinder support; described push rod is connected with frame by a pilot pin seat, and described positioning cylinder is arranged on pilot pin seat.
4. the energy-efficient heavy bamboo square stock automatic demoulding machine of one according to claim 3; it is characterized in that: described frame top is provided with housiung separator; the cylinder body of described hoist cylinder is fixed on housiung separator; the piston rod of hoist cylinder is fixedly connected with moved cross beam; described frame both sides are provided with two root posts, and described moved cross beam is slidably connected on two root posts.
5. the energy-efficient heavy bamboo square stock automatic demoulding machine of one according to claim 4, it is characterized in that: described moved cross beam two ends are provided with gripping arm bearing, described gripping arm is fixed on gripping arm bearing, and described gripping arm bearing is provided with balancing stand.
6. the energy-efficient heavy bamboo square stock automatic demoulding machine of one according to claim 5; it is characterized in that: described column is provided with guiding tooth bar; described moved cross beam two ends are provided with the upper guide gear coordinating guiding tooth bar, and described balancing stand is provided with the lower guide gear coordinating guiding tooth bar.
7. the release method of a kind of energy-efficient heavy bamboo square stock automatic demoulding machine according to claim 6, is characterized in that: it comprises the steps:
1) mould is advanced in the die cavity of ingot stripper, determine position location;
2) positioning cylinder action, mould is in die cavity inner position;
3) hoist cylinder action, promotes moved cross beam and compresses, the cover plate on mould to preset pressure down through pressure head;
4) ejector pin cylinder action, ejects pin;
5) material grasping: two material grasping cylinder actions, by two gripping arms by material promptly;
6) demoulding: moved cross beam is up under the effect of hoist cylinder, up by gripping arm band material, heavy bamboo square stock is separated with mould;
7) retainer cylinder action, retainer bar is to precalculated position;
8) material grasping cylinder action, heavy bamboo square stock is unclamped in gripping arm, and heavy bamboo square stock drops on retainer bar;
9) pusher cylinder action, shifts heavy bamboo square stock onto assigned address; Complete a working cycles.
8. the release method of a kind of energy-efficient heavy bamboo square stock automatic demoulding machine according to claim 7, is characterized in that: need in described step 4) first to remove foreign material on pilot pin seat, prevent foreign material from blocking optoelectronic switch.
9. the release method of a kind of energy-efficient heavy bamboo square stock automatic demoulding machine according to claim 7, is characterized in that: need all pins all to eject in described step 5), after ejector pin oil cylinder all falls back on position, can carry out material grasping action.
10. the release method of a kind of energy-efficient heavy bamboo square stock automatic demoulding machine according to claim 7; it is characterized in that: in described step 5), material grasping power size can be realized by regulation relief valve; and during material grasping, will in the centre position of square stock end face bottom gripping arm.
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| CN201410838900.3A CN104493949B (en) | 2014-12-30 | 2014-12-30 | A kind of energy-efficient heavy bamboo square stock automatic demoulding machine and release method thereof |
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| CN201410838900.3A CN104493949B (en) | 2014-12-30 | 2014-12-30 | A kind of energy-efficient heavy bamboo square stock automatic demoulding machine and release method thereof |
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| CN104493949B CN104493949B (en) | 2016-05-25 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104827547A (en) * | 2015-05-13 | 2015-08-12 | 河南赛诺重工机械有限公司 | Demolding mechanism for artificial wood beam cold press |
| CN105904569A (en) * | 2016-06-17 | 2016-08-31 | 安吉宇康机械有限公司 | Heavy bamboo square stock production line bringing convenience to feeding and discharging of mold and collection of pins |
| CN105904572A (en) * | 2016-06-17 | 2016-08-31 | 安吉宇康机械有限公司 | Heavy bamboo square stock production line with mold which is durable and easy to take |
| CN105904566A (en) * | 2016-06-17 | 2016-08-31 | 安吉宇康机械有限公司 | Simple heavy bamboo square stock production line with durable dies |
| CN105904567A (en) * | 2016-06-17 | 2016-08-31 | 安吉宇康机械有限公司 | Novel reconsolidated bamboo square stock production line provided with durable dies and capable of moving in and out dies conveniently |
| CN105904570A (en) * | 2016-06-17 | 2016-08-31 | 安吉宇康机械有限公司 | Heavy bamboo square stock production line provided with durable dies and bringing convenience for collection of pins |
| CN105922431A (en) * | 2016-06-17 | 2016-09-07 | 安吉宇康机械有限公司 | Reconsolidated bamboo square stock production line with durable molds easy to take and dowels convenient to collect |
| CN105922430A (en) * | 2016-06-17 | 2016-09-07 | 安吉宇康机械有限公司 | Heavy bamboo square material production line capable of conveniently collecting pins and conveniently demoulding |
| CN106670338A (en) * | 2017-01-10 | 2017-05-17 | 无锡贝克威尔器具有限公司 | Self-demolding mold for baking trays for baking |
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| CN104827547A (en) * | 2015-05-13 | 2015-08-12 | 河南赛诺重工机械有限公司 | Demolding mechanism for artificial wood beam cold press |
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| CN105922431A (en) * | 2016-06-17 | 2016-09-07 | 安吉宇康机械有限公司 | Reconsolidated bamboo square stock production line with durable molds easy to take and dowels convenient to collect |
| CN105922430A (en) * | 2016-06-17 | 2016-09-07 | 安吉宇康机械有限公司 | Heavy bamboo square material production line capable of conveniently collecting pins and conveniently demoulding |
| CN106670338A (en) * | 2017-01-10 | 2017-05-17 | 无锡贝克威尔器具有限公司 | Self-demolding mold for baking trays for baking |
| CN108681307A (en) * | 2018-07-26 | 2018-10-19 | 西安科技大学 | Test specimen demoulds fully automatic electric fluid servo system and release method |
| CN108748487A (en) * | 2018-08-01 | 2018-11-06 | 四川麦笠机械设备有限公司 | Recombined bamboo or the wooden chill press circulatory system |
| CN110485839A (en) * | 2019-07-25 | 2019-11-22 | 潜山县九鼎精密机械有限公司 | People's air defense door latch apparatus |
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| CN104493949B (en) | 2016-05-25 |
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Denomination of invention: An Efficient and Energy saving Automatic Demoulding Machine for Heavy Bamboo Squares and Its Demoulding Method Effective date of registration: 20221122 Granted publication date: 20160525 Pledgee: Anji green sub branch of Hangzhou United Rural Commercial Bank Co.,Ltd. Pledgor: ANJI YUKANG MACHINERY Co.,Ltd. Registration number: Y2022330003100 |