CN209867290U - Double-layer molding machine - Google Patents
Double-layer molding machine Download PDFInfo
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- CN209867290U CN209867290U CN201920339683.1U CN201920339683U CN209867290U CN 209867290 U CN209867290 U CN 209867290U CN 201920339683 U CN201920339683 U CN 201920339683U CN 209867290 U CN209867290 U CN 209867290U
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Abstract
The utility model relates to a double-layer molding machine, which comprises a double-layer molding device, a transfer device, a lifting device and an outer cover, wherein the double-layer transfer device is arranged at the upper and lower intervals of the double-layer molding device, and two ends of the transfer device transversely extend to the outer side of the double-layer molding device; a lifting device is respectively arranged on the two transverse sides of the double-layer modeling forming device; the double-layer modeling forming device, the transferring device and the lifting device are all arranged in the outer cover. The upper box forming unit and the lower box forming unit of the molding machine are stacked together up and down, share main components such as a bottom beam, a top beam, a movable mold plate, a forming guide pillar, a lifting mechanism and the like, and have the advantages of simple and compact structure, high processing efficiency and high yield.
Description
Technical Field
The utility model belongs to the technical field of clay sand molding, specifically a double-deck molding machine.
Background
At present, clay sand automatic molding technology appears for decades, and with the guidance of continuously improved requirements of users, along with the development progress of technology and the continuous innovation of manufacturers, various featured hosts and production lines appear, and a KW line, a Disha line and a New east line which are widely used at home and abroad are typical representatives of the clay sand automatic molding technology. The vertical parting molding machine in various molding machines has the characteristics of no sand box and high molding efficiency. Various horizontal parting flaskless (slip flask) molding machines have the advantages of simple structure, wide adaptability and remarkable production efficiency, and particularly, the vertical sand shooting slip flask/slip flask molding technology developed domestically in recent two years solves the problems of low mold back compactness and low casting yield easily caused by horizontal sand shooting molding, and further expands the application range of the flaskless sand shooting molding. The multi-contact static pressure automatic molding, particularly the multi-contact static pressure molding with a box is the best molding mode of product adaptability in a plurality of molding devices, the host and the production line are most complex in structure, no matter quantitative sand adding or airflow sand adding is adopted, sand filling and molding are completed by relative movement among a sand box, a sand filling device and a mold, sand filling, molding and even mold closing can not be realized at a fixed station like the non-box molding, the production rate is limited, the upper box can only be molded with an upward parting surface, mold closing is realized at other stations in a turnover way, the host is complex in structure, and a plurality of auxiliary devices are provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's weak point, penetrate the figurative high efficiency of sand and the automatic figurative high adaptability of multi-contact static pressure and have the case figurative sand-iron ratio little with the level, the advantage that the casting yield is high combines together, provides a double-deck molding machine.
The utility model provides a its technical problem take following technical scheme to realize:
a double molding machine characterized in that: the device comprises a double-layer modeling forming device, a transfer device, a lifting device and an outer cover, wherein the double-layer modeling forming device is provided with two layers of transfer devices at intervals from top to bottom, and two ends of each transfer device transversely extend to the outer side of the double-layer modeling forming device; a lifting device is respectively arranged on the two transverse sides of the double-layer modeling forming device; the double-layer modeling forming device, the transferring device and the lifting device are all arranged in the outer cover.
Moreover, the double-layer modeling and forming device comprises a base frame, an upper box forming unit and a lower box forming unit, wherein the upper box forming unit and the lower box forming unit are arranged in the base frame in an up-down stacking mode.
The base frame comprises a top beam, a bottom beam, forming guide pillars and a die mounting plate, wherein the top beam and the bottom beam are arranged at intervals up and down, and the forming guide pillars are fixedly arranged at four corners of the top beam and the bottom beam for connection; a mould mounting plate is movably sleeved in the middle of the four forming guide columns, an upper box mould is mounted at the upper end of the mould mounting plate, and an upper box forming unit is mounted above the upper box mould; a lower box mould is arranged at the lower end of the mould mounting plate, and a lower box forming unit is arranged below the lower box mould; a cope flask is arranged between the cope mold and the cope molding unit; a lower sand box is arranged between the lower box mould and the lower sand storage cylinder.
And a channel for shooting the sand airflow and the air-sand mixed fluid is arranged in the die mounting plate.
Moreover, the concrete structure of the upper box forming unit is as follows: a sand storage cylinder is fixedly arranged at the upper part of the forming guide pillar, and a sand shooting cylinder is connected with a sand tank arranged on the top beam; an upper box forming pressure head is installed in the sand storage cylinder in a guiding mode, a pressure head adapter is fixedly installed on the upper box forming pressure head, an annular air passage is formed in the pressure head adapter, and an upper box air passage plate is installed on the upper portion of the annular air passage; the lower end of the upper box forming pressure head is provided with a sprue pit; a sand separating cone is fixedly arranged in the middle of the sand storage barrel; a sand channel opening and closing unit is arranged on a forming guide rod above the upper box forming pressure head in a driving mode, a group of pressure rods are fixedly arranged at the lower end of the sand channel opening and closing unit, and through holes are formed in the upper box forming pressure head at the positions corresponding to the pressure rods.
And the sand way opening and closing unit comprises an upper box pressure rod plate, four pressure head guide rods and a forming guide rod frame, wherein the four pressure head guide rods penetrate through the top beam and can move up and down, the four pressure head guide rods above the top beam are fixedly connected with the forming guide rod frame, and the four pressure head guide rods below the top beam are fixedly connected with an upper box pressure rod plate.
Moreover, the specific structure of the lower box forming unit is as follows: a lower box forming pressure bar plate is arranged in the die mounting plate, a group of lower box pressure bars are fixedly arranged at the lower end of the lower box forming pressure bar plate, through holes are formed in the positions, right opposite to the lower box pressure bars, of the die mounting plate, and the lower box forming pressure bars are driven by an oil cylinder to move up and down;
a lower top plate is movably sleeved on the lower parts of the four forming guide pillars, a forming top ring is fixedly installed at the upper end of the forming lower top plate, a lower sand storage cylinder is movably sleeved outside the forming top ring and fixedly connected with a sand storage cylinder guide plate, and the sand storage cylinder guide plate is movably sleeved on four forming top ring connecting rods through guide sleeves; the forming top ring is internally sleeved with a forming central core, the forming central core is fixedly arranged on a forming central core guide plate, and the forming central core guide plate is movably sleeved on four forming top ring connecting rods.
The moving mechanism comprises rail seats, linear slide rails, slide blocks, a fixing frame, belt wheels, a transmission belt, synchronous connecting rods and a moving motor, wherein the two rail seats are arranged in parallel at intervals, limiting grooves are symmetrically formed in the inner sides of the two rail seats, the linear slide rails are fixedly arranged in the limiting grooves, the slide blocks are arranged on the linear slide rails in a guiding and sliding mode, and the slide plates are used for supporting the upper molding box or the lower molding box to be moved to move; the upper ends of the track seats on the two sides are respectively provided with a fixed frame, the fixed frames are respectively provided with two belt wheels at intervals in parallel, a transmission belt is arranged between the two belt wheels on the track seat on the same side, and the transmission belt is connected with the slide block on the corresponding side; the axes of the two belt wheels which are coaxial at two sides are coaxially provided with a synchronous connecting rod, one end of the synchronous connecting rod extends to the outer side of the belt wheels and is coaxially provided with a load moving motor, and the load moving motor drives the belt wheels at two sides to synchronously rotate.
The lifting mechanism comprises a base, a flat plate, a lifting oil cylinder and a bracket, wherein the base is of a cubic frame structure, the flat plate is fixedly arranged at the upper end of the base, the lifting oil cylinder is vertically arranged in the middle of the flat plate, a piston rod of the lifting oil cylinder upwards penetrates through the flat plate and is fixedly provided with the bracket, and the lifting oil cylinder drives the bracket to move up and down; the lower ends of brackets at two sides of the oil cylinder are respectively and symmetrically provided with a vertical guide rod, the guide rods penetrate through guide sleeves arranged on a flat plate, the lower ends of the guide rods are connected with the bottom of the lifting oil cylinder through a connecting plate, and the upper part of one side in the base is provided with a photoelectric switch.
The utility model has the advantages that:
1. the upper box forming unit and the lower box forming unit of the molding machine are stacked together up and down, share main components such as a bottom beam, a top beam, a movable mold plate, a forming guide pillar, a lifting mechanism and the like, and the molding machine is simple and compact in structure.
2. The molding machine completes sand shooting, molding and demolding at the same station, the sand adding system and the sand box do not interfere with each other, and sand shooting is completed, so that profiling can be performed.
3. The molding machine is compact in sand shooting and filling, high in sand filling speed, high in production efficiency, small in sand consumption and attractive in molding, and the thickness of a sand mold can be adjusted according to needs.
4. The mold core can be placed in the molding machine before mold closing, the operation time of the host is not occupied, the operation is convenient, and the operation speed of the host is not influenced.
5. The height position of the upper box molding pressure head can be adjusted through the touch screen of the PLC control system during sand shooting of the molding machine, and the relative heights of the sand storage cylinder, the molding top ring and the molding center core can also be adjusted, so that the sand adding amount and the local sand adding proportion are changed, the compression ratio of each region is close, the molding hardness is uniform, the hardness is close after actual molding, the molding machine adapts to different product requirements, and no sand scraping or sand scattering is needed before and after molding.
6. The sand shooting fluid channel (mould mounting plate) of the molding machine is a specially designed component and mainly comprises two spaces, wherein the middle part of the sand shooting fluid channel is provided with an upper sand shooting fluid channel, the upper side and the lower side of the sand shooting fluid channel are provided with mould fixing plates, an upper box mould is fixedly arranged on the upper layer, a lower box mould is fixedly arranged on the lower layer, and a sand shooting fluid channel and an auxiliary sand shooting airflow channel are formed among the three spaces; a lower box forming pressure rod plate 37 is arranged in an auxiliary sand shooting airflow channel of the sand shooting fluid channel assembly, a group of pressure rods 40 are fixed on the pressure rod plate, the pressure rods are opposite to the through holes of the sand shooting fluid channel assembly 3, and the lower box forming pressure rod plate 37 and an oil cylinder 38 are fixed and can move up and down under the driving of the oil cylinder.
7. The sand shooting of the upper box and the lower box of the molding machine is provided with the auxiliary air passages, and the auxiliary air flow is sprayed out from the auxiliary air passages through the gaps around the pressure rod during sand shooting to push the sand flow to change the direction, so that the molding sand is secondarily distributed in the sand box, and the hardness of each area of the sand box is uniform.
8. The molding unit of the molding machine is of a four-column type press structure, each action is controlled by an independent oil cylinder, and the molding machine is convenient to adjust pressure, speed and initial position, simple in structure, stable and reliable.
9. The upper box forming pressure head of the molding machine is provided with a sprue pit and an air hole needle, and the mold is formed by a sprue bar, a riser bar, a sprue, a riser and an air hole in one step.
10. The molding machine is provided with an independent circulation program, the molding box can be independently circulated, the molding in the daytime can be realized, the casting at night can be realized, the production organization and the management are convenient, and the enterprise benefit is maximized.
Drawings
FIG. 1 is a diagram of an assembly of a double molding machine according to the present invention;
FIG. 2 is a sectional view taken along line A-A of FIG. 1;
FIG. 3 is a top view of FIG. 1;
FIG. 4 is a schematic structural view of a double-layer molding apparatus;
FIG. 5 is a right side view of FIG. 4;
FIG. 6 is a sectional view taken along line B-B of FIG. 5;
FIG. 7 is a front view of a transfer mechanism;
FIG. 8 is a left side view of FIG. 7;
fig. 9 is a schematic perspective view of the transfer mechanism;
FIG. 10 is a schematic view of the elevating mechanism;
FIG. 11 is a schematic view in section of FIG. 10;
FIG. 12 is a schematic view of a mold mounting plate configuration;
fig. 13 is a top plan view, mid-section, of fig. 12 (containing the shot fluid channel).
Reference numerals: 1 molding guide post, 2 cope flask, 3 pressure bar cylinder, 4 sand storage cylinder, 5 cope flask molding pressure head, 6 cope flask, 7 cope flask pressure bar plate, 8 pressure bar, 9 pressure head guide bar, 10 sprue pit, 11 sand dividing cone, 12 pressure head adapter, 13 cope flask air passage plate, 14 top beam, 15 cope flask mold, 16 molding guide bar frame, 17 bottom beam, 18 lifting device, 19 cylinder ball socket, 20 transfer device, 21 lower sand storage cylinder, 25 lower mold, 26 lower mold, 27 molding center core, 28 molding top ring, 29 molding lower top plate, 30 molding center core guide plate, 31 sand storage cylinder guide plate, 32 sand storage cylinder connecting rod, 33 molding center core connecting rod, 34 molding top ring connecting rod, 36 mold universal bottom plate, 37 lower flask molding pressure bar plate, 38 cylinder, 39 mold mounting plate (sand shooting fluid channel), 40 lower flask pressure bar;
181 base, 182 photoelectric switch, 183 bracket, 184 guide rod, 185 flat plate, 186 lift cylinder, 187 connecting plate and 188 guide sleeve; 201 move and carry motor, 202 band pulley, 203 drive belt, 204 synchronous connecting rod, 205 mount, 206 linear slideway, 207 track seat, 208 slider, 209 fixed block.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments, which are illustrative, not restrictive, and the scope of the invention should not be limited thereto.
A double-layer molding machine comprises a double-layer molding device, a transfer device 20, a lifting device 18 and an outer cover (not shown in the figure), wherein the double-layer molding device is provided with two layers of transfer devices at intervals from top to bottom, and two ends of the transfer devices transversely extend to the outer side of the double-layer molding device; a lifting device is respectively arranged on the two transverse sides of the double-layer modeling forming device; the double-layer modeling forming device, the transferring device and the lifting device are all arranged in the outer cover.
The double-layer molding device is the core of a molding machine, adopts a four-column press structure and comprises a base frame, an upper box molding unit and a lower box molding unit, wherein the upper box molding unit and the lower box molding unit are stacked up and down in the base frame;
the foundation frame comprises a top beam 14, a bottom beam 17 and forming guide pillars 1, wherein the top beam and the bottom beam are arranged at intervals up and down, and the forming guide pillars are fixedly arranged at four corners of the top beam and the bottom beam for connection;
a mould mounting plate 39 is movably sleeved in the middle of the four forming guide columns, a channel for injecting sand airflow and air-sand mixed fluid is formed in the mould mounting plate, an upper box mould 15 is mounted at the upper end of the mould mounting plate, and an upper box forming unit is mounted above the upper box mould; the lower end of the mould mounting plate is provided with a lower box mould 25, and a lower box forming unit is arranged below the lower box mould. The mold mounting plate 39 is a specially designed component (see fig. 12 and 13), and is mainly composed of three plates and two spaces, wherein a sand shooting fluid passage is arranged in the middle, mold fixing plates are arranged on the upper side and the lower side, an upper box mold is arranged and fixed on the upper layer, a lower box mold is arranged and fixed on the lower layer, and a sand shooting flow passage and an auxiliary sand shooting airflow passage are formed among the three spaces.
The concrete structure of last case shaping unit does: a sand storage barrel 4 is fixedly arranged at the upper part of the forming guide pillar, and a sand shooting barrel is connected with a sand tank 6 arranged on the top beam; an upper box forming pressure head 5 is installed in the sand storage cylinder in a guiding mode, a pressure head adapter 12 is fixedly installed on the upper box forming pressure head, an annular air passage is formed in the pressure head adapter, and an upper box air passage plate 13 is installed on the upper portion of the annular air passage; the lower end of the upper box forming pressure head is provided with a sprue pit 10; a sand separating cone 11 is fixedly arranged in the middle of the sand storage barrel;
a sand channel opening and closing unit is arranged on a forming guide rod above the upper box forming pressure head in a driving mode, a group of pressure rods 8 are fixedly arranged at the lower end of the sand channel opening and closing unit, and through holes are formed in the upper box forming pressure head 5 at the corresponding positions of the pressure rods and can enable the pressure rods to penetrate through the through holes.
The sand channel opening and closing unit comprises an upper box pressure rod plate 7, four pressure head guide rods 9 and a forming guide rod frame 16, wherein the four pressure head guide rods penetrate through the top beam and can move up and down, the four pressure head guide rods above the top beam are fixedly connected with the forming guide rod frame, and the four pressure head guide rods below the top beam are fixedly connected with an upper box pressure rod plate. A cope flask 2 is provided between the cope mold and the cope molding unit.
The specific structure of lower case shaping unit does: a lower box forming pressure bar plate 37 is arranged in the die mounting plate, a group of lower box pressure bars 40 are fixedly arranged at the lower end of the lower box forming pressure bar plate, through holes are formed in the die mounting plate opposite to the lower box pressure bars, the lower box forming pressure bars 37 are connected with an oil cylinder 38, and the oil cylinder drives the lower box forming pressure bars to move up and down;
a lower molding top plate 29 is movably sleeved at the lower parts of the four molding guide columns, a molding top ring 28 is fixedly installed at the upper end of the molding lower top plate through four molding top ring connecting rods 34, a lower sand storage cylinder 21 is movably sleeved outside the molding top ring, the lower sand storage cylinder is fixedly connected with a sand storage cylinder guide plate 31 through four sand storage cylinder connecting rods 32, and the sand storage cylinder guide plate is movably sleeved on the four molding top ring connecting rods 34 through guide sleeves and can move up and down; the forming top ring 28 is internally sleeved with a forming central core 27 which is fixedly arranged on a forming central core guide plate 30 which is movably sleeved on four forming top ring connecting rods. A drag flask 26 is provided between the drag mold and the lower sand reservoir.
The transfer mechanism comprises rail seats 207, linear slide rails 206, sliding blocks 208, a fixing frame 205, belt wheels 202, a transmission belt 203, a synchronous connecting rod 204 and a transfer motor 201, wherein the two rail seats are arranged in parallel at intervals, limiting grooves are symmetrically formed in the inner sides of the two rail seats, the linear slide rails are fixedly arranged in the limiting grooves, the sliding blocks are arranged on the linear slide rails in a guiding and sliding manner, and the sliding plates are used for supporting an upper molding box or a lower molding box to be moved to move; the upper ends of the track seats on the two sides are respectively provided with a fixed frame, the fixed frames are respectively provided with two belt wheels at intervals in parallel, a transmission belt is arranged between the two belt wheels on the track seat on the same side, and the transmission belt is connected with the slide block on the corresponding side; the axes of the two belt wheels which are coaxial at two sides are coaxially provided with a synchronous connecting rod, one end of the synchronous connecting rod extends to the outer side of the belt wheels and is coaxially provided with a load moving motor, and the load moving motor drives the belt wheels at two sides to synchronously rotate.
The lifting mechanism comprises a base 181, a flat plate 185, a lifting oil cylinder 186 and a bracket 183, the base is of a cubic frame structure, the flat plate is fixedly arranged at the upper end of the base, the lifting oil cylinder is vertically arranged in the middle of the flat plate, a piston rod of the lifting oil cylinder upwards penetrates through the flat plate and is fixedly provided with the bracket, and the lifting oil cylinder drives the bracket to move up and down;
the lower ends of the brackets at the two sides of the oil cylinder are respectively and symmetrically provided with a vertical guide rod 184, the guide rods penetrate through guide sleeves 188 arranged on the flat plate, and the lower ends of the guide rods are connected with the bottom of the lifting oil cylinder through a connecting plate 187 to ensure that the guide rods and the lifting oil cylinder synchronously move up and down. A photoelectric switch 182 is installed on the upper part of one side in the base, and the lifting height of the shift is accurately detected.
The working method of the double-layer molding machine comprises the following specific steps:
after the host computer is started, the lifting mechanism on the side of the empty box lifts up the two empty sand boxes, then the two sliding plates of the loading and unloading mechanism move to the lower parts of the sand boxes under the drive of the motor, then the lifting mechanism descends, the cope box 2 is hung on the upper layer transfer sliding plate to realize the separation of the cope box and the drag box, and the drag box 26 continues to descend along with the lifting mechanism until being hung on the lower layer transfer sliding plate of the transfer device; the lifting mechanism is lowered to the bottom to wait for the next sand box group to enter positioning;
the transfer device respectively moves the empty cope flask 2 and the empty drag flask 26 into a forming station, three groups of oil cylinders (not shown in the figure) arranged on the bottom beam 1 respectively push a forming lower top plate 29, a forming top ring 28, a sand storage cylinder 4 and a forming middle core 27 to ascend, lift the drag flask 26 until the upper surface of the sand flask is contacted with the parting surface of the mold 25, push the sand shooting fluid channel assembly 38 and the cope mold 15 to continue to ascend, support the cope flask 2 to jointly move upwards until the upper surface of the cope flask 2 is coincided with the lower surface of the sand storage cylinder 4, simultaneously, the drag flask forming pressure rod plate 37 pushes the lower drag flask pressure rod 40 to ascend to a fixed position by the oil cylinder 38, the sand shooting channel on the sand shooting fluid channel assembly 38 is opened, and the drag flask mold 15, the mold fixing plate 39, the drag flask 26, the forming top ring 28, the sand storage cylinder 4 and the forming middle core 27 jointly form a drag; meanwhile, the pressure lever 8 is driven by the oil cylinder to rise to a fixed position, the sand shooting channel on the upper box forming pressure head 5 is opened, and the upper box mold 15, the sand shooting fluid channel assembly 39, the upper sand box 2, the sand storage cylinder 4, the upper box forming pressure head 5 and the sprue pit 10 jointly form an upper box closed space;
then, the transfer slide of the transfer mechanism is returned to the intermediate position to wait for the next empty box to rise. After the empty box which is just fed is subjected to box assembling and sand shooting, the forming oil cylinder and the oil cylinder 38 which are arranged on the top beam 14 and the bottom beam 17 are simultaneously extruded to finish the vertical molding;
after the molding is finished, a lower group of empty sand boxes are lifted, the loading and unloading mechanism returns to the original position to receive the empty boxes, the oil cylinder on the top beam 14 drives the upper box molding pressure head 5 and the like to lift up to realize the upper mold stripping, the oil cylinder on the top beam descends to drive the lower box mold 15, the lower sand box 26, the molding top ring 28, the sand storage cylinder 4 and the molding central core 27 to descend, the upper mold box 2 and the sand shooting fluid channel assembly 39 also descend, the upper mold box 2 is firstly received by an upper sliding plate of the mold box loading and unloading mechanism, then the lower mold box 26 falls onto a lower sliding plate of the mold box moving-out mechanism, and the transferring mechanism moves out the mold boxes and simultaneously sends the next group of empty boxes to the molding station;
after the mold box is moved out by the loading and unloading mechanism, the lifting mechanism on the side of the mold box ascends to firstly receive the lower mold box, the lower mold box continues to ascend after the lower mold box is placed in the mold core, the upper mold box and the lower mold box are assembled and separated from the loading and unloading mechanism, the transferring mechanism returns to the middle position, the mold box falls along with the lifting mechanism, and a molding cycle is finished.
Although the embodiments of the present invention and the accompanying drawings are disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit and scope of the present invention and the appended claims, and therefore, the scope of the present invention is not limited to the disclosure of the embodiments and the accompanying drawings.
Claims (9)
1. A double molding machine characterized in that: the device comprises a double-layer modeling forming device, a transfer device, a lifting device and an outer cover, wherein the double-layer modeling forming device is provided with two layers of transfer devices at intervals from top to bottom, and two ends of each transfer device transversely extend to the outer side of the double-layer modeling forming device; a lifting device is respectively arranged on the two transverse sides of the double-layer modeling forming device; the double-layer modeling forming device, the transferring device and the lifting device are all arranged in the outer cover.
2. The double layer molding machine of claim 1, wherein: the double-layer modeling forming device comprises a base frame, an upper box forming unit and a lower box forming unit, wherein the upper box forming unit and the lower box forming unit are arranged in the base frame in an upper-lower stacking mode.
3. The double layer molding machine of claim 2, wherein: the foundation frame comprises a top beam, a bottom beam, forming guide pillars and a die mounting plate, wherein the top beam and the bottom beam are arranged at intervals up and down, and the forming guide pillars are fixedly arranged at four corners of the top beam and the bottom beam for connection; a mould mounting plate is movably sleeved in the middle of the four forming guide columns, an upper box mould is mounted at the upper end of the mould mounting plate, and an upper box forming unit is mounted above the upper box mould; a lower box mould is arranged at the lower end of the mould mounting plate, and a lower box forming unit is arranged below the lower box mould; a cope flask is arranged between the cope mold and the cope molding unit; a lower sand box is arranged between the lower box mould and the lower sand storage cylinder.
4. The double layer molding machine of claim 3, wherein: and a channel for injecting sand airflow and air-sand mixed fluid is formed in the die mounting plate.
5. The double layer molding machine of claim 2, wherein: the concrete structure of last case shaping unit does: a sand storage cylinder is fixedly arranged at the upper part of the forming guide pillar, and a sand shooting cylinder is connected with a sand tank arranged on the top beam; an upper box forming pressure head is installed in the sand storage cylinder in a guiding mode, a pressure head adapter is fixedly installed on the upper box forming pressure head, an annular air passage is formed in the pressure head adapter, and an upper box air passage plate is installed on the upper portion of the annular air passage; the lower end of the upper box forming pressure head is provided with a sprue pit; a sand separating cone is fixedly arranged in the middle of the sand storage barrel; a sand channel opening and closing unit is arranged on a forming guide rod above the upper box forming pressure head in a driving mode, a group of pressure rods are fixedly arranged at the lower end of the sand channel opening and closing unit, and through holes are formed in the upper box forming pressure head at the positions corresponding to the pressure rods.
6. The double layer molding machine of claim 5, wherein: the sand way opening and closing unit comprises an upper box pressure rod plate, four pressure head guide rods and a forming guide rod frame, wherein the four pressure head guide rods penetrate through the top beam and can move up and down, the four pressure head guide rods above the top beam are fixedly connected with the forming guide rod frame, and the four pressure head guide rods below the top beam are fixedly connected with an upper box pressure rod plate.
7. The double layer molding machine of claim 2, wherein: the specific structure of the lower box forming unit is as follows: a lower box forming pressure bar plate is arranged in the die mounting plate, a group of lower box pressure bars are fixedly arranged at the lower end of the lower box forming pressure bar plate, through holes are formed in the positions, right opposite to the lower box pressure bars, of the die mounting plate, and the lower box forming pressure bars are driven by an oil cylinder to move up and down;
a lower top plate is movably sleeved on the lower parts of the four forming guide pillars, a forming top ring is fixedly installed at the upper end of the forming lower top plate, a lower sand storage cylinder is movably sleeved outside the forming top ring and fixedly connected with a sand storage cylinder guide plate, and the sand storage cylinder guide plate is movably sleeved on four forming top ring connecting rods through guide sleeves; the forming top ring is internally sleeved with a forming central core, the forming central core is fixedly arranged on a forming central core guide plate, and the forming central core guide plate is movably sleeved on four forming top ring connecting rods.
8. The double layer molding machine of claim 1, wherein: the transfer mechanism comprises rail seats, linear sliding rails, sliding blocks, a fixing frame, belt wheels, a transmission belt, synchronous connecting rods and a transfer motor, wherein the two rail seats are arranged in parallel at intervals, limiting grooves are symmetrically formed in the inner sides of the two rail seats, the linear sliding rails are fixedly arranged in the limiting grooves, the sliding blocks are arranged on the linear sliding rails in a guiding and sliding mode, and the sliding plates are used for supporting an upper molding box or a lower molding box to be moved to move; the upper ends of the track seats on the two sides are respectively provided with a fixed frame, the fixed frames are respectively provided with two belt wheels at intervals in parallel, a transmission belt is arranged between the two belt wheels on the track seat on the same side, and the transmission belt is connected with the slide block on the corresponding side; the axes of the two belt wheels which are coaxial at two sides are coaxially provided with a synchronous connecting rod, one end of the synchronous connecting rod extends to the outer side of the belt wheels and is coaxially provided with a load moving motor, and the load moving motor drives the belt wheels at two sides to synchronously rotate.
9. The double layer molding machine of claim 1, wherein: the lifting mechanism comprises a base, a flat plate, a lifting oil cylinder and a bracket, wherein the base is of a cubic frame structure, the flat plate is fixedly arranged at the upper end of the base, the lifting oil cylinder is vertically arranged in the middle of the flat plate, a piston rod of the lifting oil cylinder upwards penetrates through the flat plate and is fixedly provided with the bracket, and the lifting oil cylinder drives the bracket to move up and down; the lower ends of brackets at two sides of the oil cylinder are respectively and symmetrically provided with a vertical guide rod, the guide rods penetrate through guide sleeves arranged on a flat plate, the lower ends of the guide rods are connected with the bottom of the lifting oil cylinder through a connecting plate, and the upper part of one side in the base is provided with a photoelectric switch.
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| CN201920339683.1U CN209867290U (en) | 2019-03-18 | 2019-03-18 | Double-layer molding machine |
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| CN201920339683.1U CN209867290U (en) | 2019-03-18 | 2019-03-18 | Double-layer molding machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109926550A (en) * | 2019-03-18 | 2019-06-25 | 河北中北环保科技有限公司 | A kind of bilayer moulding machine |
| CN111531162A (en) * | 2020-04-30 | 2020-08-14 | 浙江长兴前进机械有限公司 | Marine gearbox body casting production line and process thereof |
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2019
- 2019-03-18 CN CN201920339683.1U patent/CN209867290U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109926550A (en) * | 2019-03-18 | 2019-06-25 | 河北中北环保科技有限公司 | A kind of bilayer moulding machine |
| CN111531162A (en) * | 2020-04-30 | 2020-08-14 | 浙江长兴前进机械有限公司 | Marine gearbox body casting production line and process thereof |
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