Multi-contact hydraulic compaction molding machine

Abstract

The utility model relates to a multi-contact hydraulic compaction molding machine, belongs to the technical field of compaction molding machines, and solves the technical problems of poor molding sand uniformity, poor strength, complex structure, low efficiency and the like of the conventional molding machine. According to the solution, the multi-contact hydraulic compaction molding machine comprises a rack; the sand adding structure is arranged on the rack; the compaction structure is arranged on the rack, and the compaction structure is connected with the sand adding structure through a connecting piece; and the drawing structure is arranged on the rack. The sand adding structure comprises a sand hopper, the interior of the sand hopper is divided into a plurality of small sand hoppers through partition plates, two first rotating shafts and two second rotating shafts are arranged in the small sand hoppers, first louver boards and second louver boards are arranged on the first rotating shafts and the second rotating shafts respectively, and the first louver boards and the second louver boards rotate in a left-right split mode. Compared with the prior art, the utility model has the advantages of high molding sand uniformity, high strength, improved efficiency, simple structure and the like.

Description

TECHNICAL FIELD

[0001] The utility model belongs to compaction molding machine technical field, more specifically relates to multi-contact hydraulic compaction molding machine. BACKGROUND

[0002] Molding machine is the foundry equipment for manufacturing sand mould, through the loose mould sand is filled into the sand box, utilizes the different ways such as shake compaction, compaction, shock pressure, pressure, makes the loose mould sand in sand box compact, has necessary strength.

[0003] However, the existing molding machine mould sand enters sand box generally from sand hopper into sand box, and the mould sand in sand hopper directly falls into sand box in the way of free fall, so that the uniformity of mould sand is poor, and the strength is poor;The compaction strength of the compaction mechanism of the existing molding machine is low, resulting in poor product quality of the castings pouring;In addition, the sand feeding and compaction mechanism of the existing molding machine generally realizes the entering and compaction of mould sand through the conversion of different structures, and the structure is complex, and the efficiency is low. UTILITY MODEL CONTENTS

[0004] In order to overcome the deficiencies of the prior art, solve the technical problems such as poor uniformity of mould sand, poor strength, complex structure and low efficiency of the existing molding machine, the utility model provides a multi-contact hydraulic compaction molding machine.

[0005] The utility model is realized through the following technical schemes.

[0006] The utility model provides a multi-contact hydraulic compaction molding machine, which comprises:

[0007] A rack;

[0008] A sand feeding structure is arranged on the rack;

[0009] A compaction structure is arranged on the rack, and the compaction structure is connected with the sand feeding structure through a connecting piece;

[0010] An ejection structure is arranged on the rack.

[0011] Further, the rack comprises a first support and a second support, the second support is arranged on the upper side inside the first support, the top end of the second support is provided with a horizontal guide rail, and the bottom end of the second support is provided with a horizontal first conveying line.

[0012] Further, the bottom surface of the first support is provided with a supporting pad.

[0013] Further, the sand adding structure comprises a sand hopper, the sand hopper is divided into several small sand hoppers by a partition plate, two first rotating shafts and two second rotating shafts are arranged in the small sand hoppers, first louver plates and second louver plates are arranged on the first rotating shafts and the second rotating shafts respectively, and the first louver plates and the second louver plates are opened and closed left and right; a first rotating connecting rod is hingedly connected to one side of the first rotating shaft, a second rotating connecting rod is hingedly connected to one side of the second rotating shaft, a first connecting rod is hingedly connected to the other end of the first rotating connecting rod, a crank is hingedly connected to the other end of the second rotating connecting rod, the other end of the crank and the other end of the first connecting rod are hingedly connected to a second connecting rod, and a first telescopic oil cylinder is further arranged below the crank, the extending end of the first telescopic oil cylinder is hingedly connected to the crank, when the extending end of the first telescopic oil cylinder is extended, the crank moves to the right to drive the first louver plate and the second louver plate to keep horizontal, and when the extending end of the first telescopic oil cylinder is retracted, the crank moves to the left to drive the first louver plate and the second louver plate to keep opened in opposite directions.

[0014] Further, the number of the small sand hoppers is two.

[0015] Further, the first rotating shafts and the second rotating shafts are each provided with a louver plate placing groove, and the first louver plates and the second louver plates are arranged on the louver plate placing grooves respectively.

[0016] Further, the compaction structure comprises a compaction box body, a plurality of through holes are arranged at the bottom of the compaction box body, a hydraulic cylinder is arranged at the through hole, and a contact head is arranged at the extending end of the hydraulic cylinder; a driving oil cylinder is further hingedly connected to the compaction box body, and the driving oil cylinder drives the movement of the compaction structure and the sand adding structure.

[0017] Further, the sand adding structure and the compaction structure each comprise a transportation element, the transportation element is arranged on the front and rear sidewalls of the sand hopper and the compaction box body, and the transportation element reciprocates left and right along a guide rail.

[0018] Further, the mold stripping structure comprises a mold stripping support, a mold stripping oil cylinder and a mold stripping frame, the mold stripping support is arranged on the inner lower side of the first support, a front and back direction second transportation line is arranged on the mold stripping support, a plurality of mold stripping frames are arranged on the second transportation line, the mold stripping frames reciprocate in the front and back direction along the second transportation line, a mold plate is arranged on the mold stripping frame, a plurality of mold stripping oil cylinders are arranged on the lower part of the mold plate, and the extending end of the mold stripping oil cylinder is extended or retracted to drive the mold plate to reciprocate up and down.

[0019] Further, a plurality of sand boxes are arranged on the first transportation line, and the sand boxes reciprocate left and right along the first transportation line.

[0020] The utility model discloses reached beneficial effect is: the utility model discloses select compact structure and add sand structure through connecting piece, the setting of connecting piece can make compact structure and add sand structure can under the drive of drive oil cylinder reciprocate along the guide rail left and right, need not with the past moulding machine through the conversion of different structure to realize sand and compaction, simple structure, improve efficiency, select add sand structure, the setting of first louver, second louver, first rotary connecting rod, second rotary connecting rod, first connecting rod, crank and second connecting rod in add sand structure, can realize the sand of sand of sand through the opening and closing of first louver and second louver, control the sand of sand of sand, guarantee the evenness and fullness of add sand, avoid waste, select compact structure, the setting of multi -contact hydraulic compaction, and multi -contact pressure is big, and the product strength of production is high, and the evenness also promotes accordingly.

[0021] Compared with the prior art, the utility model has the advantages of high sand uniformity, high strength, efficiency improvement and simple structure. BRIEF DESCRIPTION OF DRAWINGS

[0022] Fig. 1 It is the structure schematic diagram of the utility model;

[0023] Fig. 2 It is the structure schematic diagram of the sand adding structure in the utility model;

[0024] Fig. 3 It is the structure schematic diagram of the first rotary shaft in the utility model;

[0025] Fig. 4 It is the structure schematic diagram of the compaction structure in the utility model;

[0026] Fig. 5 It is the plan view of the compaction structure in the utility model.

[0027] In the drawing: 1, frame;2, add sand structure;3, compaction structure;4, connecting piece;5, demoulding structure;6, first support;7, second support;8, guide rail;9, first transport line;10, support pad;11, sand hopper;12, partition;13, small sand hopper;14, first rotary shaft;15, second rotary shaft;16, first louver;17, second louver;18, first rotary connecting rod;19, second rotary connecting rod;20, first connecting rod;21, crank;22, second connecting rod;23, first telescopic oil cylinder;24, louver placing groove;25, compaction box;26, through -hole;27, hydraulic cylinder;28, contact;29, drive oil cylinder;30, transport element;31, demoulding support;32, demoulding oil cylinder;33, demoulding frame;34, second transport line;35, mould plate;36, sand box. DETAILED DESCRIPTION

[0028] The utility model will be described further in detail in connection with the drawings and examples.

[0029] As shown in Figs. 1 to 5 The multi-contact hydraulic compaction molding machine comprises:

[0030] A rack 1 is used to support other components of the multi-contact hydraulic compaction molding machine.

[0031] Specifically, the rack 1 comprises a first support 6 and a second support 7, both of which can enclose a rectangular space to improve stability. The second support 7 is arranged on the upper side inside the first support 6, and the top end of the second support 7 is provided with a horizontal guide rail 8, which improves work efficiency. The bottom end of the second support 7 is provided with a horizontal first conveying line 9, which also improves work efficiency. Specifically, a plurality of sand boxes 36 are arranged on the first conveying line 9, and the sand boxes 36 reciprocate along the first conveying line 9, which reduces the replacement time.

[0032] Specifically, the bottom surface of the first support 6 is provided with a supporting pad 10, which supports the weight of the rack 1 and further improves the stability of the multi-contact hydraulic compaction molding machine.

[0033] A sand adding structure 2 is arranged on the rack 1, and the sand adding structure 2 is used for sand feeding.

[0034] Specifically, the sand adding structure 2 comprises a sand hopper 11, which is divided into a plurality of small sand hoppers 13 by a partition 12, and the number of the small sand hoppers 13 can be set according to the normal task amount, and in the embodiment, the number of the small sand hoppers 13 is 2. Two first rotating shafts 14 and two second rotating shafts 15 are arranged in the small sand hoppers 13, and a first louver 16 and a second louver 17 are arranged on the first rotating shaft 14 and the second rotating shaft 15 respectively, and when the first rotating shaft 14 and the second rotating shaft 15 rotate, the first louver 16 and the second louver 17 rotate left and right. A first rotating connecting rod 18 is hingedly connected to one side of the first rotating shaft 14, a second rotating connecting rod 19 is hingedly connected to one side of the second rotating shaft 15, one end of the first rotating connecting rod 18 is hingedly connected to a first connecting rod 20, one end of the second rotating connecting rod 19 is hingedly connected to a crank 21, the other end of the crank 21 and the other end of the first connecting rod 20 are respectively hingedly connected to a second connecting rod 22, and a first telescopic oil cylinder 23 is further arranged below the crank 21, and the extending end of the first telescopic oil cylinder 23 is hingedly connected to the crank 21. When the extending end of the first telescopic oil cylinder 23 extends, the crank 21 moves to the right to drive the first rotating connecting rod 18 to rotate 45° to the right, thereby driving the first louver 16 to remain horizontal, and the crank 21 moves to the right to drive the second rotating connecting rod 19 to rotate 45° to the left, thereby driving the second louver 17 to remain horizontal, and when the extending end of the first telescopic oil cylinder 23 retracts, the crank 21 moves to the left to drive the first rotating connecting rod 18 and the second rotating connecting rod 19 to rotate to 90° perpendicular, thereby driving the first louver 16 and the second louver 17 to rotate 45° to remain opposite and open.

[0035] In addition, the number of the first louver 16 and the second louver 17 can be set according to actual production needs, thereby improving work efficiency.

[0036] Specifically, the first rotating shaft 14 and the second rotating shaft 15 are both provided with a louver placing groove 24, and the first louver 16 and the second louver 17 are arranged on the louver placing groove 24 respectively, so that the connection between the first rotating shaft 14 and the first louver 16 and the connection between the second rotating shaft 15 and the second louver 17 are both more stable.

[0037] The sand adding structure 2 realizes sand feeding of the sand mold by opening and closing of the first louver 16 and the second louver 17, controls the sand feeding amount of the sand mold, ensures the uniformity and fullness of sand adding, and avoids waste.

[0038] The compacting structure 3 is arranged on the frame 1, the compacting structure 3 is connected with the sand adding structure 2 through the connecting piece 4, and the connecting piece 4 can enable the compacting structure 3 and the sand adding structure 2 to reciprocate left and right under the driving of the driving oil cylinder 29, so that the sand feeding and compacting of the former molding machine are realized without conversion of different structures, the structure is simple, and the efficiency is improved.

[0039] Specifically, the compaction structure 3 comprises a compaction box 25, the bottom of the compaction box 25 is provided with a plurality of through holes 26, the through holes 26 are provided with hydraulic cylinders 27, the extending end of the hydraulic cylinder 27 is provided with a contact head 28, a plurality of contact heads 28 are provided, the multi-contact head 28 pressure is large, the strength of the produced product is high, and the uniformity is also improved accordingly. The compaction box 25 is further hinged with a driving oil cylinder 29, the driving oil cylinder 29 drives the compaction structure 3 and the sand adding structure 2 to move, and when the sand adding structure 2 finishes adding sand, the driving oil cylinder 29 can drive the compaction structure 3 to enter the working position, thereby improving the efficiency.

[0040] Specifically, the sand adding structure 2 and the compaction structure 3 both comprise a conveying element 30, the conveying element 30 is a guide wheel structure, the conveying element 30 is arranged on the front and rear sidewalls of the sand hopper 11 and the compaction box 25, and the conveying element 30 reciprocates left and right along the guide rail 8.

[0041] The mold stripping structure 5 is arranged on the rack 1, and the mold stripping structure 5 is used for lifting a mold plate 35 to a working position.

[0042] Specifically, the mold stripping structure 5 comprises a mold stripping support 31, a mold stripping oil cylinder 32 and a mold stripping frame 33, the mold stripping support 31 is arranged on the lower side of the first support 6, the mold stripping support 31 is provided with a second conveying line 34 in the front-rear direction, a plurality of mold stripping frames 33 are arranged on the second conveying line 34, and the mold stripping frames 33 reciprocate in the front-rear direction along the second conveying line 34. The second conveying line 34 is arranged to enable the plurality of mold stripping frames 33 to reciprocate along the second conveying line 34, so that the mold stripping frames 33 can be replaced without increasing the labor cost of workers and improving the work efficiency. The mold stripping frame 33 is provided with the mold plate 35, the mold plate 35 can be an upper mold or a lower mold, the lower part of the mold plate 35 is provided with a plurality of mold stripping oil cylinders 32, and the extending end of the mold stripping oil cylinder 32 is extended or retracted to drive the mold plate 35 to reciprocate up and down, that is, the mold plate 35 is lifted to the working position near the sand box 36, or the mold plate 35 after compaction is lowered.

[0043] The working process of the utility model is as follows:

[0044] The extending end of the mold stripping oil cylinder 32 is extended, and the mold plate 35 is lifted to the working position of the sand box 36;

[0045] The extending end of the first telescopic oil cylinder 23 is extended and retracted, the first louver 16 and the second louver 17 are rotated by 45° to keep opposite opening when the extending end of the first telescopic oil cylinder 23 is retracted, the sand from the sand storage is added into the sand box 36, and the excess sand is scraped;

[0046] The control drive oil cylinder 29 drives the compacting structure 3 to enter the working position, the several hydraulic cylinders 27 drive the several contacts 28 to carry out hydraulic compaction on the molding sand in the sand box 36 with a pressure of 15 kg / cm 2 ;

[0047] The extension end of the ejection oil cylinder 32 is retracted, the sand box 36 and the mold plate 35 are controlled to return to the position of the ejection frame 33, and the second transportation line 34 carries out reciprocating motion in the front-back direction to wait for the next molding.

[0048] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and the embodiments can still be changed within the knowledge range possessed by the ordinary skilled in the art, and any modification, equivalent replacement, improvement and the like made within the spirit and principle of the utility model should be included in the protection range of the utility model.

Claims

1. Multi-contact hydraulic compaction molding machine, characterized by: The utility model relates to a sanding structure (2) is provided with the sand hopper (11), the sand hopper (11) is divided into several small sand hoppers (13) through the baffle (12) in, and the small sand hopper (13) is equipped with two first rotary shafts (14) and two second rotary shafts (15) in, and the first rotary shaft (14) and second rotary shaft (15) are equipped with first louver (16) and second louver (17) respectively, and the first louver (16) and second louver (17) are opened to rotate left and right, and the first rotary shaft (14) one side is hinged with first rotary connecting rod (18), and the second rotary shaft (15) one side is hinged with second rotary connecting rod (19), and the first rotary connecting rod (18) other end is hinged with first connecting rod (20), and the second rotary connecting rod (19) other end is hinged with crank (21), and the crank (21) other end and first connecting rod (20) other end are hinged with second connecting rod (22) respectively, and the crank (21) below is also equipped with first telescopic oil cylinder (23), and the first telescopic oil cylinder (23) is hinged with the crank (21) of the extension end, and when the extension end of first telescopic oil cylinder (23) is stretched out, the crank (21) moves right and drives first louver (16) and second louver (17) to keep horizontal, and when the extension end of first telescopic oil cylinder (23) is retracted, the crank (21) moves left and drives first louver (16) and second louver (17) to keep opposite opening. The utility model relates to a sanding structure (2) is provided with the sand hopper (11), the sand hopper (11) is divided into several small sand hoppers (13) through the baffle (12) in, and the small sand hopper (13) is equipped with two first rotary shafts (14) and two second rotary shafts (15) in, and the first rotary shaft (14) and second rotary shaft (15) are equipped with first louver (16) and second louver (17) respectively, and the first louver (16) and second louver (17) are opened to rotate left and right, and the first rotary shaft (14) one side is hinged with first rotary connecting rod (18), and the second rotary shaft (15) one side is hinged with second rotary connecting rod (19), and the first rotary connecting rod (18) other end is hinged with first connecting rod (20), and the second rotary connecting rod (19) other end is hinged with crank (21), and the crank (21) other end and first connecting rod (20) other end are hinged with second connecting rod (22) respectively, and the crank (21) below is also equipped with first telescopic oil cylinder (23), and the first telescopic oil cylinder (23) is hinged with the crank (21) of the extension end, and when the extension end of first telescopic oil cylinder (23) is stretched out, the crank (21) moves right and drives first louver (16) and second louver (17) to keep horizontal, and when the extension end of first telescopic oil cylinder (23) is retracted, the crank (21) moves left and drives first louver (16) and second louver (17) to keep opposite opening. The utility model relates to a sanding structure (2) is provided with the sand hopper (11), the sand hopper (11) is divided into several small sand hoppers (13) through the baffle (12) in, and the small sand hopper (13) is equipped with two first rotary shafts (14) and two second rotary shafts (15) in, and the first rotary shaft (14) and second rotary shaft (15) are equipped with first louver (16) and second louver (17) respectively, and the first louver (16) and second louver (17) are opened to rotate left and right, and the first rotary shaft (14) one side is hinged with first rotary connecting rod (18), and the second rotary shaft (15) one side is hinged with second rotary connecting rod (19), and the first rotary connecting rod (18) other end is hinged with first connecting rod (20), and the second rotary connecting rod (19) other end is hinged with crank (21), and the crank (21) other end and first connecting rod (20) other end are hinged with second connecting rod (22) respectively, and the crank (21) below is also equipped with first telescopic oil cylinder (23), and the first telescopic oil cylinder (23) is hinged with the crank (21) of the extension end, and when the extension end of first telescopic oil cylinder (23) is stretched out, the crank (21) moves right and drives first louver (16) and second louver (17) to keep horizontal, and when the extension end of first telescopic oil cylinder (23) is retracted, the crank (21) moves left and drives first louver (16) and second louver (17) to keep opposite opening. ​ ​ 2. The multi-contact hydraulic compaction molding machine according to claim 1, characterized by: ​ 3. The multi-contact hydraulic jolt former of claim 2, wherein: ​ 4. The multi-contact hydraulic jolt former of claim 3, wherein: ​ 5. The multi-contact hydraulic jolt former of claim 4, wherein: ​ 6. The multi-contact hydraulic compaction molding machine according to claim 5, characterized by: ​ 7. The multi-contact hydraulic jolt former of claim 6, wherein: ​ 8. The multi-contact hydraulic jolt former of claim 7, wherein: ​ 9. The multi-contact hydraulic jolt former of claim 8, wherein: The draw structure (5) comprises a draw support (31), a draw oil cylinder (32) and a draw frame (33), the draw support (31) is arranged inside the first support (6) at the lower side, a second conveying line (34) in the front-rear direction is arranged on the draw support (31), a plurality of draw frames (33) are arranged on the second conveying line (34), the draw frames (33) reciprocate in the front-rear direction along the second conveying line (34), a mold plate (35) is arranged on the draw frame (33), a plurality of draw oil cylinders (32) are arranged at the lower part of the mold plate (35), and the extension end of the draw oil cylinder (32) drives the mold plate (35) to reciprocate up and down when the extension end extends or retracts.

10. The multi-contact hydraulic compaction molding machine according to claim 9, characterized by: A plurality of sand boxes (36) are arranged on the first conveying line (9), and the sand boxes (36) reciprocate left and right along the first conveying line (9).

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