DE212023000059U1 - Novel core manufacturing system - Google Patents

Abstract

A novel core manufacturing system characterized in that it comprises:
a sand mixing device for sand mixing, the bottom of the sand mixing device being provided with a mixed sand outlet for discharging the mixed core sand;
a core making device, wherein the core making device and the sand mixing device are arranged separately on the same mounting surface, and the top of the core making device is equipped with a core sand receiving hopper;
a movable sealed drum movably disposed between the sand mixing device and the core making facility for receiving the core sand and transporting it to the core making facility; and
an automatic pouring device, which is arranged on one side of the core production device and is used to raise the movable, sealed drum to the core sand receiving hopper and to pour the core sand located in the movable, sealed drum into the core sand receiving hopper.

Description

Cross-references to other relevant applications

The present invention claims the benefit of Chinese patent application No. 202310129100.3 entitled “Novel Core Manufacturing System” filed with the State Intellectual Property Office of the People's Republic of China on February 17, 2023, the entire contents of which are incorporated by reference into this invention.

Field of invention

The present invention relates to the technical field of core manufacturing and more particularly to a novel core manufacturing system.

State of the art

In the arrangement of conventional core making units, the sand mixer is usually located above the core making machine, with a sand outlet connected to an intermediate sand storage hopper of the core making machine. Therefore, a steel structure platform is required above the core making machine to accommodate the sand mixing system including the sand storage hopper located above the sand mixer. This places very high demands on the height of the entire workshop. Furthermore, when a sand mixer serves multiple core making machines, the steel structure platform must extend to all core making machines. The overall structure of the core manufacturing unit is very large and complex, and its layout is very inflexible, which is not conducive to the manufacturing process and maintenance.

Task of the invention

The present invention provides a novel core manufacturing system. In the novel core manufacturing system, devices are arranged separately. The novel core manufacturing system has the advantages of simple structure and easy maintenance, which reduces the requirements for the height of the entire equipment and allows the arrangement to be made more flexible.

• eine Sandmischvorrichtung, die zum Sandmischen dient, wobei der Boden der Sandmischvorrichtung mit einem zum Ablassen des gemischten Kernsands dienenden Mischsandauslass versehen ist;
• eine Kernherstellungseinrichtung, wobei die Kernherstellungseinrichtung und die Sandmischvorrichtung separat auf derselben Montagefläche angeordnet sind und die Oberseite der Kernherstellungseinrichtung mit einem Kernsandaufnahmetrichter ausgestattet ist;
• eine bewegliche, dichte Trommel, die beweglich zwischen der Sandmischvorrichtung und der Kernherstellungseinrichtung angeordnet ist und zur Aufnahme des Kernsands und zum Transportieren dieses zur Kernherstellungseinrichtung dient; und
• eine automatische Ausgießvorrichtung, die auf einer Seite der Kernherstellungseinrichtung angeordnet ist und zum Anheben der beweglichen, dichten Trommel bis zum Kernsandaufnahmetrichter und zum Ausgießen des in der beweglichen, dichten Trommel befindlichen Kernsands in den Kernsandaufnahmetrichter dient.

An embodiment of the present invention provides a novel core manufacturing system comprising:

• a sand mixing device for mixing sand, the bottom of the sand mixing device being provided with a mixing sand outlet for discharging the mixed core sand;
• a core making device, wherein the core making device and the sand mixing device are arranged separately on the same mounting surface and the top of the core making device is equipped with a core sand receiving hopper;
• a movable, sealed drum which is movably arranged between the sand mixing device and the core making device and serves to receive the core sand and to transport it to the core making device; and
• an automatic pouring device arranged on one side of the core making device and serving to lift the movable, sealed drum up to the core sand receiving hopper and to pour the core sand contained in the movable, sealed drum into the core sand receiving hopper.

In some embodiments, the novel core making system further includes a mobile dolly disposed between the sand mixing apparatus and the core making facility, the movable sealed drum disposed on the mobile dolly, and the mobile dolly for driving the reciprocating motion of the movable sealed drum between the sand mixing device and the core production facility.

In some exemplary embodiments, the automatic pouring device includes a lifting frame, a lifting drive mechanism, and a casing and support mechanism, the lifting rack being disposed on a side of the core production device and extending upwardly, the lifting driving mechanism being disposed on the lifting rack, the casing and supporting mechanism geared thereto the lifting drive mechanism is connected and serves to enclose and support the movable, sealed drum and the lifting drive mechanism is used to drive the approach or removal of the enclosing and carrying mechanism to or from the core sand receiving hopper.

In some exemplary embodiments, the lifting frame is fixedly disposed adjacent to the core manufacturing facility and its height is not lower than the height of the core manufacturing facility, with the lifting drive mechanism disposed on the lifting frame.

In some example embodiments, the elevator drive mechanism includes a elevator arrangement, a lifting platform and a connecting rod drive arrangement, wherein the lifting arrangement is arranged on the lifting frame, the lifting platform is geared to the lifting arrangement and is drivable for up and down movement along the lifting frame, the connecting rod drive arrangement is arranged on the lifting platform, the edging and carrying mechanism with the Connecting rod drive assembly is connected, the connecting rod drive assembly, when the lifting platform is moved upward to the limit position, serves to drive the movement of the binding and supporting mechanism between the lifting platform and the core sand receiving hopper and for pouring the materials from the movable, sealed drum further through the binding and Support mechanism can be driven for coupling to the core sand receiving funnel.

In some exemplary embodiments, the lifting assembly is a chain structure comprising a motor and a lifting chain, the lifting chain being movably disposed on the lifting frame, the lifting platform being mounted on the lifting assembly, and the motor being disposed on the underside of the lifting frame and connected to the lifting chain.

In some exemplary embodiments, the movable sealed drum includes a drum body, a closure lid, and an assembly for opening and closing the cover, the top of the drum body being provided with an inlet opening, the closure lid being movably disposed at the inlet opening, the bottom of the drum body with an outlet opening, the assembly for opening and closing the cover is arranged at the outlet opening and blocks it, the drum body can be driven to move by the enclosing and carrying mechanism and the assembly for opening and closing the cover can be connected to the core sand receiving funnel and the Exhaust opening opens when connected to the core sand receiving funnel.

In some exemplary embodiments, the cover opening and closing assembly includes a first opening and closing cover, a second opening and closing cover, a first connecting rod, a second connecting rod, a first link gear, and a second link gear, the first link gear and the second link gear being hinged to the lower portion of the drum body and engaging with each other, one end of the first connecting rod being connected to the first link gear, the other end of the first connecting rod extending obliquely downward in a direction away from the second link gear, and the middle portion of the first connecting rod being connected to the first opening and closing cover, one end of the second connecting rod being connected to the second link gear, the other end of the second connecting rod extending obliquely downward in a direction away from the first link gear, and the middle portion of the second connecting rod being connected to the second opening and closing cover, an abutting cover being disposed around the core sand receiving hopper, the first connecting rod and the second connecting rod being opened when the abutting cover abuts them, and the first opening and closing cover and the second covers for opening and closing are movably arranged on the inlet and outlet openings and cover them and can be driven by the first connecting rod or the second connecting rod so that they open or close the inlet and outlet openings.

In some exemplary embodiments, a first roller is disposed at the end of the first connecting rod remote from the first articulating gear and a second roller is disposed at the end of the second connecting rod remote from the second articulating gear, wherein the abutting cover disposed on two sides of the core sand receiving hopper is provided with an inclined limiting block abutting against the first roller and the second roller, respectively.

In some exemplary embodiments, the lifting drive mechanism includes a lifting drive element, a first pouring rail and a second pouring rail, wherein the first pouring rail and the second pouring rail are arranged on the lifting frame, the upper end of the first pouring rail is bent towards the core sand receiving funnel and thus forms a first bending section, the upper end of the second pouring rail is bent in the direction of the core sand receiving funnel and thus forms a second bending section, the first bending section is located above the second bending section, the edging and carrying mechanism is provided with a transmission lever, the transmission lever is simultaneously movable with the first pouring rail and the second pouring rail is connected and the lifting drive element is arranged at the lower end of the first pouring rail and the second pouring rail and serves to drive the movement of the rimming and supporting mechanism along the first pouring rail and the second pouring rail, wherein when the rimming and supporting mechanism is up to the first Bending section and second bending section is moved, the movable, sealed drum is turned over and connected to the core sand receiving funnel.

In some exemplary embodiments, the movable sealed drum includes a drum body and a cover opening and closing assembly, the top of the drum body being provided with an inlet and outlet opening, the cover opening and closing assembly at the inlet and outlet opening is arranged and blocks it, the drum body can be driven to move by the enclosure and support mechanism and the assembly for opening and closing the cover can be connected to the core sand receiving funnel and opens the inlet and outlet opening when it is connected to the core sand receiving funnel.

In some exemplary embodiments, the cover opening and closing assembly includes a first opening and closing lid, a second opening and closing lid, a first connecting rod, a second connecting rod, a first link gear, a second link gear, and an elastic connecting member, wherein the first link gear and the second link gear are hinged to the lower portion of the drum body and are engaged with each other, one end of the first connecting rod is connected to the first link gear, the other end of the first connecting rod extends obliquely downward in a direction away from the second link gear and the middle portion of the first connecting rod is connected to the first lid for opening and closing, one end of the second connecting rod is connected to the second link gear, the other end of the second connecting rod extends obliquely downward in a direction away from the first link gear, and the middle portion of the second connecting rod is connected to the second lid for opening and closing, a limiting block is arranged on one side of the core sand receiving hopper, either the first connecting rod or the second connecting rod is opened when the limiting block comes into contact therewith, and the first lids for opening and closing and the second lid for opening and closing are movably arranged on the inlet and outlet opening and cover them and can be driven by the first connecting rod or the second connecting rod so that they open or close the inlet and outlet opening , wherein the two ends of the elastic connecting member are respectively connected to the middle portion of the first connecting rod and the second connecting rod, whereby the first connecting rod and the second connecting rod approach each other.

The advantageous effects of the embodiment of the present invention include at least the following: In the novel core making system according to the present embodiment, the core making device and the sand mixing device are separately arranged on the same mounting surface, with the mixed core sand being sealed and replenished by means of the movable sealed drum and transported to the core making device. The core sand is then lifted up to the core sand receiving funnel for pouring by the automatic pouring device arranged on one side of the core production device, which completes the material transport between the sand mixing device and the core production device. During the actual sand mixing for core production, the sand mixing process is first carried out by the sand mixing device. The core sand formed after sand mixing is discharged through the mixed sand outlet. The movable sealed drum is connected to the mixed sand outlet. The core sand is sealed and transported to the core manufacturing facility. The automatic pouring device lifts the positioned movable sealed drum up to the core sand receiving hopper and pours the core sand in the movable sealed drum into the core sand receiving hopper, then the core making process is completed by the core making device. In comparison to the prior art, the novel core manufacturing system according to the invention does not need to use a one-piece stacking structure, so that the requirements for the height of the entire core manufacturing unit are lower, the height can therefore be lower and the requirements for the assembly height in the workshop are also lower and more Allow flexibility. At the same time, a separate movable sealed drum is used for core sand transportation, which can ensure a clean and tidy on-site working environment and reduce VOC emissions. In addition, the separate structure is easy to maintain.

Brief description of the drawings

• 1 eine schematische Darstellung des Schemas der Sandmischung und Kernherstellung im Stand der Technik;
• 2 eine schematische Darstellung des neuartigen Kernherstellungssystems gemäß einem ersten Ausführungsbeispiel der vorliegenden Erfindung;
• 3 eine schematische Darstellung des Aufbaus der automatischen Ausgießvorrichtung gemäß 2;
• 4 eine schematische Darstellung eines Teilaufbaus der automatischen Ausgießvorrichtung gemäß 3;
• 5 eine schematische Darstellung des Aufbaus der Sandmischvorrichtung gemäß 1;
• 6 eine schematische Darstellung des Aufbaus der beweglichen, dichten Trommel gemäß 1 aus einer ersten Perspektive;
• 7 eine schematische Darstellung des Aufbaus der beweglichen, dichten Trommel gemäß 1 aus einer zweiten Perspektive;
• 8 eine schematische Darstellung des neuartigen Kernherstellungssystems gemäß einem zweiten Ausführungsbeispiel der vorliegenden Erfindung;
• 9 eine schematische Darstellung des Aufbaus der automatischen Ausgießvorrichtung gemäß 8;
• 10 eine schematische Darstellung eines Teilaufbaus der automatischen Ausgießvorrichtung gemäß 8;
• 11 eine schematische Darstellung des Aufbaus der beweglichen, dichten Trommel gemäß 8;
• 12 eine schematische Darstellung des Aufbaus der Sandmischvorrichtung gemäß 8.

In order to better understand the technical solutions of the present invention, the drawings according to the embodiments of the present invention are briefly described below. It is clear that the drawings only show some embodiments of the present invention and are therefore not to be understood as limiting the scope of protection and that a person skilled in the art can obtain other drawings on the basis of these drawings without any creative effort. They show:

• 1 a schematic representation of the scheme of sand mixing and core production in the prior art;
• 2 a schematic representation of the novel core manufacturing system according to a first embodiment of the present invention;
• 3 a schematic representation of the structure of the automatic pouring device according to 2 ;
• 4 a schematic representation of a partial structure of the automatic pouring device according to 3 ;
• 5 a schematic representation of the structure of the sand mixing device according to 1 ;
• 6 a schematic representation of the structure of the movable, sealed drum according to 1 from a first perspective;
• 7 a schematic representation of the structure of the movable, sealed drum according to 1 from a second perspective;
• 8th a schematic representation of the novel core manufacturing system according to a second embodiment of the present invention;
• 9 a schematic representation of the structure of the automatic pouring device according to 8th ;
• 10 a schematic representation of a partial structure of the automatic pouring device according to 8th ;
• 11 a schematic representation of the structure of the movable, sealed drum according to 8th ;
• 12 a schematic representation of the structure of the sand mixing device according to 8th .

Reference symbol list

100

novel core production system

110

Sand mixing device

111

Sand mixer frame

113

Sand storage funnel

115

weighing hopper

117

sand mixing drum

118

automatic opening device

119

Opening mechanism

130

Core manufacturing facility

131

Core sand receiving funnel

133

attached cover

135

Boundary block

150

movable, sealed drum

151

drum body

153

Closing lid

155

Assembly for opening and closing the cover

1551

first lid to open and close

1552

second lid for opening and closing

1553

first connecting rod

1554

second connecting rod

1555

first joint gear

1556

second joint gear

1557

first role

1558

second role

1559

elastic connecting element

170

automatic pouring device

171

lifting frame

173

Lift drive mechanism

1731

Lifting arrangement

1733

lifting platform

1735

Connecting rod drive assembly

1737

Lifting drive element

1738

first pouring rail

1739

second pouring rail

175

Binding and carrying mechanism

1751

transmission lever

190

mobile transport trolley

Detailed description of the exemplary embodiments

For a better understanding of the object, the technical solutions and the advantages of the embodiments of the present invention, the technical solutions of the embodiments of the present invention are described clearly and completely below in conjunction with the drawings of the embodiments of the present invention. The described embodiments naturally represent only some of the embodiments of the present invention and not all embodiments. The components of the embodiments of the present invention shown in the figures can be used in arranged and designed in different configurations.

The following detailed description of the embodiments of the present invention illustrated in the accompanying drawings describes only some selected embodiments of the invention and is not intended to limit the claims. All further exemplary embodiments that the person skilled in the art can arrive at without any creative input based on the exemplary embodiments of the present invention also fall within the scope of protection of the present invention.

Note that similar reference numerals and letters indicate similar elements in the following figures. As soon as an element is defined in a figure, it does not need to be explained separately again in the following figures.

In the description of the present invention, it is to be understood that terms such as: B. "top", "bottom", "inside" and "outside", usually based on the orientation or positional relationship shown in the figures or on the orientation or positional relationship in which the product of the invention is normally arranged when used. This is only to simplify the description of the present invention. Unless otherwise specified, these orientation words do not mean or imply that the device or element referred to must have a particular orientation or be constructed and operated in a particular orientation. Therefore, the reference words should not be construed as limiting the scope of the present invention.

In addition, it should be noted that the use of terms such as "first", "second", etc. is only to facilitate the distinction of the corresponding components and should not be understood as an indication or suggestion of relative meaning .

As in the state of the art of 1 As described above, existing sand mixers are generally arranged above the core making machine, and their sand outlet is connected to the transition sand storage hopper of the core making machine. Therefore, a steel structure platform is required above the core making machine to arrange the sand mixing system including a sand storage hopper arranged above the sand mixer, which places high demands on the height of the entire workshop. In addition, existing sand mixers generally require the mixed core sand to be filled into the transition sand storage hopper of the core making machine, which places high process requirements on inorganic binders. The mixed core sand must be isolated from the air to prevent premature drying and solidification. Therefore, it is necessary to additionally moisten the transition sand storage hopper and add a locking mechanism, which undoubtedly makes its structure more complex.

In order to solve the above-mentioned problems, the present invention provides a novel core manufacturing system that can reduce mounting height requirements, provide sealing conditions, and facilitate maintenance. It should be noted that the features of the embodiments of the present invention can be combined with each other as long as there is no conflict.

First embodiment

It will be on the 2 and 3 Referenced. The present embodiment provides a novel core manufacturing system 100 that utilizes a separate structure rather than a one-piece stack structure. Therefore, the requirements for the height of the entire core manufacturing unit are lower, the height can therefore be lower and the requirements for the assembly height in the workshop are also lower and allow more flexibility. At the same time, a separate movable sealed drum 150 is used for core sand transportation to achieve sealed transportation, ensuring a clean and tidy on-site working environment. Furthermore, the separate structure is easy to maintain. The novel core making system 100 according to the present embodiment includes a sand mixing device 110, a core making device 130, a movable sealed drum 150 and an automatic pouring device 170, the sand mixing device 110 for sand mixing and the bottom of the sand mixing device 110 with a for discharging the mixed core sand mixed sand outlet is provided; wherein the core making device 130 and the sand mixing device 110 are separately arranged on the same mounting surface, and the top of the core making device 130 is equipped with a core sand receiving hopper 131; wherein the movable sealed drum 150 is movably disposed between the sand mixing device 110 and the core making device 130 and serves to receive the core sand and transport it to the core making device 130; where the automatic Pouring device 170 is arranged on one side of the core manufacturing device 130 and is used to lift the movable, sealed drum 150 up to the core sand receiving funnel 131 and to pour the core sand located in the movable, sealed drum 150 into the core sand receiving funnel 131.

In the present embodiment, the basic principle of sand mixing of the sand mixing device 110 and the basic principle of core production of the core making device 130 are consistent with conventional sand mixing and core making devices and are not specifically limited here. In the actual sand mixing process for core making, the sand mixing process is first carried out by the sand mixing device 110, and the core sand formed after sand mixing is discharged from the mixed sand outlet, with the movable sealed drum 150 connected to the mixed sand outlet, and after sealing and filling the core sand, it is sent to the core making facility 130 transported. The automatic pouring device 170 lifts the positioned movable sealed drum 150 up to the core sand receiving hopper 131 and pours the core sand contained in the movable sealed drum 150 into the core sand receiving hopper 131, then the core making process is completed by the core making device 130. Compared to the conventional one-piece sand mixing and core making structure, in the present embodiment, the sand mixing device 110 and the core making device 130 are separately arranged on the same mounting surface. Since a one-piece stacking structure is not required, the height requirements of the entire core manufacturing unit are lower, the height can therefore be lower and the assembly height requirements in the workshop are also lower, allowing more flexibility. At the same time, a separate movable sealed drum 150 is used for core sand transportation, which can ensure a clean and tidy working environment on site. Furthermore, the separate structure is easy to maintain.

In some embodiments, the novel core manufacturing system 100 further includes a mobile cart 190, the mobile cart 190 disposed between the sand mixing device 110 and the core maker 130, the movable sealed drum 150 disposed on the mobile cart 190, and the mobile cart 190 for propulsion the reciprocating movement of the movable, sealed drum 150 between the sand mixing device 110 and the core production device 130. Specifically, the mobile transport truck 190 can be an automated guided vehicle (AGV) that can move back and forth between the automatic lifting device and the sand mixing device 110, while maintaining the movable, sealed drum 150 for transporting the core sand between the automatic lifting device and the sand mixing device 110 and returning. After the core sand is poured into the movable sealed drum 150, it can be reset along the original path by the automatic lifting device, with the empty movable sealed drum 150 placed on the automated guided vehicle and then passed through the automated guided vehicle for the next round of the Core sand transport is brought again to the mixed sand outlet of the sand mixing device 110.

Of course, in other embodiments of the present invention, the transport of the movable, sealed drum 150 can also be carried out via a conveyor belt or the like. For example, a reciprocating conveyor belt can be arranged between the automatic lifting device and the sand mixing device 110. The conveyor belt can move the movable, sealed drum 150 for reciprocating transport.

The automatic pouring device 170 includes a lifting frame 171, a lifting drive mechanism 173 and a casing and supporting mechanism 175, the lifting frame 171 being disposed on one side of the core making device 130 and extending upward, the lifting driving mechanism 173 being arranged on the lifting frame 171, the casing and support mechanism 175 is geared to the lifting drive mechanism 173 and serves to enclose and support the movable, sealed drum 150 and the lifting drive mechanism 173 is used to drive the approach or removal of the enclosing and carrying mechanism 175 to or from the core sand receiving hopper 131. Specifically, the lifting frame 171 is fixedly disposed next to the core making device 130 and its height is not lower than the height of the core making device 130, whereby the assembling function of the mechanisms can be provided. The lifting drive mechanism 173 is arranged on the lifting frame 171 to realize the power drive of the binding and supporting mechanism 175 and thus facilitate the reciprocating movement of the binding and supporting mechanism 175 between the lower end and the upper end of the lifting frame 171. Further, when the binding and supporting mechanism 175 is moved to the upper end of the lifting frame 171, the lifting drive mechanism 173 can actuate the movement in the movable sealed drum 150 Pour the core sand into the core sand receiving funnel 131.

Note that in the present embodiment, the casing and supporting mechanism 175 is for casing and fixing the movable sealed drum 150, and may be a casing structure or a supporting plate structure, but the present invention is not limited in this regard. The binding or release of the movable sealed drum 150 can be controlled by a controller, which controller is simultaneously connected via communication to the lifting drive mechanism 173 and can thereby control its operations.

It is based on the 4 to 7 reference is made. The lifting drive mechanism 173 includes a lifting assembly 1731, a lifting platform 1733 and a connecting rod drive assembly 1735, wherein the lifting assembly 1731 is arranged on the lifting frame 171, the lifting platform 1733 is geared to the lifting assembly 1731 and is drivable by the lifting assembly 1731 for up and down movement along the lifting frame 171, the connecting rod drive assembly 1735 is arranged on the lifting platform 1733, the encasing and supporting mechanism 175 is connected to the connecting rod drive assembly 1735, the connecting rod drive assembly 1735, when the lifting platform 1733 is moved upward to the limit position, serves to drive the movement of the encasing and supporting mechanism 175 between the lifting platform 1733 and the core sand receiving hopper 131 and to pour the Materials, the movable sealed drum 150 is further driven by the encircling and supporting mechanism 175 for coupling with the core sand receiving hopper 1313. Specifically, the lifting assembly 1731 may be a chain structure including a motor and a lifting chain. The lifting chain is movably arranged on the lifting frame 171. The lifting platform 1733 is attached to the lifting chain. The motor is arranged on the underside of the lifting frame 171 and connected to the lifting chain to set the lifting chain in motion. By driving the lifting chain, the lifting platform 1733 can be raised from the lower end to the upper end of the lifting frame 171 or lowered from the upper end to the lower end. Of course, the present invention is not limited to the specific type of the lifting assembly 1731. The lifting assembly may also be a lifting structure, for example a motor screw rod. All structures by which the raising and lowering of the lifting platform 1733 can be realized fall within the scope of the present invention.

In the present embodiment, the connecting rod drive assembly 1735 includes a connecting rod driving member and transmission connecting rods, the connecting rod driving member being disposed on the lifting platform 1733, one end of the respective transmission connecting rods being connected to the connecting rod driving member, and the other end being connected to the casing and supporting mechanism 175. Through the connecting rod drive member, the transmission connecting rods can be driven to rotate. Specifically, during the lifting phase of the lifting platform 1733, the transmission connecting rods on the lifting platform 1733 are folded, at which time the binding and supporting mechanism 175 is located on the lifting platform 1733. Once the lifting platform 1733 is moved to the upper limit position, the tie rod drive member may be moved by the controller to drive the transfer tie rods to rotate toward the core maker 130, with the binding and support mechanism 175 located at the end of the transfer tie rods moving toward the core maker 130 until it is connected to the core sand receiving funnel.

The movable sealed drum 150 includes a drum body 151, a closure lid 153 and a cover opening and closing assembly 155, the top of the drum body 151 being provided with an inlet opening, the closure lid 153 being movably disposed at the inlet opening, the bottom of the Drum body 151 is provided with an outlet opening, the assembly for opening and closing the cover 155 is arranged at the outlet opening and blocks it, the drum body 151 can be driven to move by the enclosing and supporting mechanism 175 and the assembly for opening and closing the cover 155 can be connected to the core sand receiving funnel and the outlet opening opens when it is connected to the core sand receiving funnel. Specifically, the drum body 151 is a sealed drum for storing materials with structural openings on the top and bottom. Its inner wall is covered with a non-stick resin coating to prevent sand from sticking during use and to facilitate cleaning. The storage time of core sand can be extended by a tight seal. Here, the closure lid 153 can be an openable and closable structure that is opened when materials are fed in and remains in a closed state during transport and pouring.

In the present exemplary embodiment, the sand mixing device 110 comprises a sand mix shear frame 111, a sand storage hopper 113, a weighing hopper 115 and a sand mixing drum 117, the sand storage hopper 113 being arranged at the upper end of the sand mixer frame 111, the weighing hopper 115 below the sand storage hopper 113 and the sand mixing drum 117 below the weighing hopper 115 to enable sand mixing. The lower end of the sand mixing drum 117 is provided with a mixed sand outlet. Furthermore, the sand mixer frame 111 located next to the sand mixing drum 117 is equipped with an automatic opening device 118, the automatic opening device 118 being able to open and close the closure lid 153 in order to facilitate the direct discharge of the core sand into the drum body 151. After the amount of core sand has reached the standard, the drum body 151 is covered with the closure lid 153 to ensure the tightness of the drum body 151.

In order to achieve a better sealing performance of the closure cover 153, in the present embodiment, an elastic connecting member 1559 is further arranged on the outside of the drum body 151. The elastic connecting member 1559 may be a sealing spring, wherein one end of the sealing spring is firmly connected to the outside of the drum body 151 and the other end is connected to the closure cover 153. The sealing spring is in an extended state to ensure that the closure cover 153 is always pressed against the inlet opening. When the movable sealed drum 150 is transported to the mixed sand outlet by the automated guided vehicle, the closure cover 153 may be pulled by the automatic opening device 118 to open the inlet opening. At this time, the tensile force of the sealing spring must be overcome. After the feeding is completed, the automatic opening device 118 releases the closure cap 153 so that the closure cap 153 can be reset by the elastic force of the sealing spring and pressed sealingly onto the inlet opening.

In the present embodiment, the cover opening and closing assembly 155 includes a first opening and closing lid 1551, a second opening and closing lid 1552, a first connecting rod 1553, a second connecting rod 1554, a first link gear 1555 and a second link gear 1556 , wherein the first link gear 1555 and the second link gear 1556 are hinged to the lower portion of the drum body 151 and are engaged with each other, one end of the first connecting rod 1553 is connected to the first link gear 1555, the other end of the first connecting rod 1553 slants downward extends in a direction away from the second link gear 15565 and the middle portion of the first connecting rod 1553 is connected to the first opening and closing lid 1551, one end of the second connecting rod 1554 being connected to the second link gear 1556, the other end of the second Connecting rod 1554 extends obliquely downward in a direction away from the first link gear 1555 and the middle portion of the second connecting rod 1554 is connected to the second opening and closing cover 1552, with an abutting cover 133 disposed around the core sand receiving hopper, the first connecting rod 1553 and the second connecting rod 1554 are opened when the abutting cover 133 abuts thereon and the first opening and closing lid 1551 and the second opening and closing lid 1552 are movably disposed on and cover the inlet and outlet openings the first connecting rod 1553 and the second connecting rod 1554 are drivable so that they open or close the inlet and outlet openings.

In the present exemplary embodiment, the number of the first connecting rods 1553 and the second connecting rods 1554 is two each, with the two first connecting rods 1553 correspondingly on the front and back of the drum body 151 and the two second connecting rods 1554 correspondingly on the front and back of the drum body 151 are arranged. The first connecting rods 1553 and the second connecting rods 1554 are arranged left-right symmetrically. When the lower ends of the first connecting rods 1553 and the second connecting rods 1554 are subjected to a contact force, the first connecting rods 1553 and the second connecting rods 1554 can open at the lower end, with the first opening and closing lid 1551 and the second opening and closing lid Close 1552 can be moved away from each other by driving the first connecting rods 1553 and the second connecting rods 1554, thereby opening the outlet opening.

In some exemplary embodiments, a first roller 1557 is arranged at the end of a respective first connecting rod 1553 remote from the first joint gear 1555 and a second roller 1558 is arranged at the end of a respective second connecting rod 1554 remote from the second joint gear 1556, the adjacent cover 133 located on two sides of the core sand receiving funnel is provided with an inclined boundary block which rests on the first roller 1557 and the second roller 1558. By the arrangement By adjusting the inclined boundary block, an initial guiding function can be achieved, so that the first connecting rods 1553 and the second connecting rods 1554 are opened better under the action of force and thus jamming is avoided.

In actual operation, the movable, sealed drum 150 is first transported by the driverless transport vehicle to the mixed sand outlet of the core production device 130, with the closure lid 153 of the drum body 151 being opened by the automatic opening device 118 for sand storage. After the sand storage has been completed, the closure lid 153 is used to cover it. The movable, sealed drum 150 filled with core sand is then transported to the underside of the lifting frame 171 by the automated guided vehicle.

At this time, the binding and fixing process of the binding and supporting mechanism 175 and the drum body 151 is completed. The lifting arrangement 1731 moves the lifting platform 1733 and the edging and carrying mechanism 175 upward together. After being raised to the upper position, the casing and support mechanism 175 is moved toward the core sand receiving hopper 131 by the connecting rod drive assembly 1735. At this time, the movable sealed drum 150 is lowered from the core sand receiving hopper 131 by driving the rimming and supporting mechanism 175. When the first connecting rods 1553 and the second connecting rods 1554 come into contact with the adjacent cover 133, the first connecting rods 1553 and the second connecting rods 1554 are forcefully moved up and opened towards each other, thereby causing the first opening and closing cover 1551 and the second Lid for opening and closing 1552 are driven so that the outlet opening is opened so that the core sand falls into the core sand receiving funnel 131 via the outlet opening. After the sand supply is completed, the movable sealed drum 150 is separated from the core sand receiving hopper 131. The first connecting rods 1553 and the second connecting rods 1554 are moved closer to each other under the action of gravity, thereby closing the first opening and closing lid 1551 and the second opening and closing lid 1552, then the first connecting rods 1553 and the second connecting rods 1554 reset along the original path to complete the entire cycle.

In summary, in the novel core manufacturing system 100 according to the present embodiment, the core manufacturing device 130 and the sand mixing device 110 are arranged separately on the same mounting surface, with the mixed core sand being closed and filled by means of the movable sealed drum 150 and transported to the core manufacturing device 130. The core sand is then lifted for pouring up to the core sand receiving funnel 131 by the automatic pouring device 170 arranged on one side of the core production device 130, whereby the material transport between the sand mixing device 110 and the core production device 130 is completed. During the actual sand mixing for core production, the sand mixing process is first carried out by the sand mixing device 110. The core sand formed after sand mixing is discharged through the mixed sand outlet. The movable sealed drum 150 is connected to the mixed sand outlet. The core sand is sealed and transported to the core manufacturing facility 130. The automatic pouring device 170 lifts the positioned movable sealed drum 150 up to the core sand receiving hopper 131 and pours the core sand contained in the movable sealed drum 150 into the core sand receiving hopper 131, then the core making process is completed by the core making device 130. Compared to the prior art, the novel core manufacturing system 100 according to the present exemplary embodiment does not need to use a one-piece stacking structure, so that the requirements for the height of the entire core manufacturing unit are lower, the height can therefore be lower and also the requirements for the assembly height in the workshop are lower and allow more flexibility. At the same time, a separate movable, sealed drum 150 is used for core sand transport. The mixed core sand is stored in a relatively closed drum, which can significantly extend the service life of the core sand, ensure the quality in subsequent core production, and ensure a clean and tidy on-site working environment. In addition, the separate arrangement of the sand mixing units and the sealed storage container ensure a comfortable working environment on site and high ease of maintenance.

Second embodiment

It will be on the 8 to 12 Referenced. The basic structure, principle and achieved technical effects of the novel core manufacturing system 100 according to the present embodiment are the same as the first embodiment. In order to keep the description short, reference is made to components that are not mentioned in the present exemplary embodiment corresponding content of the first exemplary embodiment is referred to.

In the present exemplary embodiment, the lifting drive mechanism 173 comprises a lifting drive element 1737, a first pouring rail 1738 and a second pouring rail 1739, the first pouring rail 1738 and the second pouring rail 1739 being arranged on the lifting frame 171, the upper end of the first pouring rail 1738 being bent in the direction of the core sand receiving funnel and thus forms a first bending section, the upper end of the second pouring rail 1739 is bent in the direction of the core sand receiving funnel and thus forms a second bending section, the first bending section is located above the second bending section, the enclosing and carrying mechanism 175 is provided with a transmission lever 1751, the transmission lever 1751 is simultaneously movably connected to the first pouring rail 1738 and the second pouring rail 1739 and the lifting drive element 1737 is arranged at the lower end of the first pouring rail 1738 and the second pouring rail 1739 and for driving the movement of the rimming and supporting mechanism 175 along the first pouring rail 1738 and the second pouring rail in 1739. When the binding and supporting mechanism 175 is moved to the first bending section and second bending section, the movable sealed drum is turned over and connected to the core sand receiving hopper 131.

In the present embodiment, the hoist drive member 1737 may be a hoist, wherein the chain or transmission belt of the hoist is arranged along the first pouring rail 1738 or the second pouring rail 1739, whereby the rim and support mechanism 175 along the first pouring rail 1738 and the second pouring rail 1739 is driven in an up and down movement.

Note that in the present embodiment, the casing and supporting mechanism 175 may be a casing structure and is attached to the movable sealed drum 150 to achieve the attachment of the movable sealed drum 150. The transmission lever 1751 has two pivot points, each of which is arranged along the first pouring rail 1738 and the second pouring rail 1739. The front portions of the first pouring rail 1738 and the second pouring rail 1739 are both arranged vertically, and the first pouring rail 1738 is located on the side of the second pouring rail 1739 remote from the core production device 130. In this case, the transfer lever 1751 is horizontal on the first pouring rail 1738 and the second pouring rail 1739 is arranged to ensure that the rim and support mechanism 175 and the movable, sealed drum 150 also remain horizontal. When the transmission lever 1751 is moved up to the first bending section and the second bending section, the transmission lever 1751 can be rotated from the horizontal state because the first bending section is higher than the second bending section, thereby making the binding and supporting mechanism 175 and the movable, tight Drum 150 can be inverted with the feed end of the movable sealed drum 150 facing the core sand receiving hopper to allow the core sand to be poured out.

The movable sealed drum 150 includes a drum body 151 and a cover opening and closing assembly 155, the top of the drum body 151 being provided with an inlet and outlet opening, the cover opening and closing assembly 155 at the inlet and outlet outlet opening is arranged and blocks it, the drum body 151 can be driven to move by the enclosure and support mechanism 175 and the assembly for opening and closing the cover 155 is connectable to the core sand receiving funnel and opens the inlet and outlet opening when connected to the core sand receiving funnel is.

In the present embodiment, the cover opening and closing assembly 155 includes a first opening and closing lid 1551, a second opening and closing lid 1552, a first connecting rod 1553, a second connecting rod 1554, a first joint gear 1555, a second joint gear 1556 and an elastic connecting member 1559, wherein the first link gear 1555 and the second link gear 1556 are hinged to the lower portion of the drum body 151 and are engaged with each other, one end of the first connecting rod 1553 is connected to the first link gear 1555, the other end is connected to the first Connecting rod 1553 extends obliquely downward in a direction away from the second link gear 15565 and the middle portion of the first link rod 1553 is connected to the first opening and closing lid 1551, one end of the second connecting rod 1554 being connected to the second link gear 1556 the other end of the second connecting rod 1554 extends obliquely downward in a direction away from the first link gear 1555, and the middle portion of the second connecting rod 1554 is connected to the second opening-closing lid 1552, with a limiting block 135 disposed on one side of the core sand receiving hopper , either the first connecting rod 1553 or the second ver connecting rod 1554 is opened when the limiting block 135 abuts thereon, and the first opening-closing cover 1551 and the second opening-closing cover 1552 are movably disposed at and covering the inlet and outlet openings and by the first connecting rod 1553 and the second connecting rod 1554 are drivable so that they open or close the inlet and outlet openings, the two ends of the elastic connecting element 1559 each being connected to the middle section of the first connecting rod 1553 and the second connecting rod 1554, whereby the first connecting rod 1553 and the second connecting rod 1554 approach each other.

It should be noted that in the present embodiment, the basic structure of the assembly for opening and closing the cover 155 can be referred to that of the first embodiment. The difference from the first embodiment is that an elastic connecting member 1559 is added to ensure that the first connecting rod 1553 and the second connecting rod 1554 can approach each other when no external force is applied, so that the first opening and closing lid 1551 and the second opening and closing lid 1552 can easily open and close the inlet and outlet opening. In particular, the elastic connecting element 1559 may be a tension spring that uses a tension force to bring the first connecting rod 1553 and the second connecting rod 1554 closer to each other.

In the present exemplary embodiment, an opening mechanism 119 is also arranged on the sand mixer frame 111 of the sand mixing device 110. The function of the opening mechanism 119 is the same as that of the automatic opening device 118 of the first embodiment. It can be brought into contact with the first connecting rod 1553 or the second connecting rod 1554, thereby opening the first opening and closing lid 1551 and the second opening and closing lid 1552 for sand storage.

In actual operation, first, the movable sealed drum 150 is transported to the mixed sand outlet of the core manufacturing device 130 by the automated guided vehicle, with the assembly for opening and closing the cover 155 of the drum body 151 for sand storage being opened by the opening mechanism 119. After the sand storage is completed, the first opening and closing lid 1551 and the second opening and closing lid 1552 are closed by means of the elastic connecting member 1559. The movable, sealed drum 150 filled with core sand is then transported to the underside of the lifting frame 171 by the automated guided vehicle. At this time, the binding and fixing process of the binding and supporting mechanism 175 and the drum body 151 is completed. Through the lifting drive member 1737, the movable sealed drum 150 is driven upwardly by the casing and support mechanism 175. After moving to the upper end, the binding and supporting mechanism 175 and the movable sealing drum 150 are inverted together by the first bending section and the second bending section, so that the first connecting rod 1553 or the second connecting rod 1554 comes into contact with the limit block 135. By abutting the limiting block 135, the first connecting rod 1553 and the second connecting rod 1554 are opened to each other and the inlet and outlet port is opened so that the core sand falls into the core sand receiving hopper 131 via the inlet and outlet port to complete the sand supply. After the sand feeding is completed, the movable sealed drum 150 is reset along the original path, with the first connecting rod 1553 and the second connecting rod 1554 being contracted by the tension spring to complete the entire cycle.

In the novel core making system 100 according to the present embodiment, the core making device 130 and the sand mixing device 110 are separately arranged on the same mounting surface, with the mixed core sand being sealed and filled by means of the movable sealed drum 150 and transported to the core making device 130. The core sand is then lifted for pouring up to the core sand receiving funnel 131 by the automatic pouring device 170 arranged on one side of the core production device 130, whereby the material transport between the sand mixing device 110 and the core production device 130 is completed. Compared to the prior art, the novel core manufacturing system 100 according to the present exemplary embodiment does not need to use a one-piece stacking structure, so that the requirements for the height of the entire core manufacturing unit are lower, the height can therefore be lower and also the requirements for the assembly height in the workshop are lower and allow more flexibility. At the same time, a separate movable, sealed drum 150 is used for core sand transport. The mixed core sand is stored in a relatively closed drum, which significantly extends the useful life of the core sand and improves the quality at the late correct core production can be ensured and a clean and tidy working environment can be guaranteed on site. In addition, the separate arrangement of the sand mixing units and the sealed storage container ensure a comfortable working environment on site and high ease of maintenance.

The foregoing description represents only specific embodiments of the invention and is not intended to limit the scope of the invention. All equivalent changes and modifications that may be made by one skilled in the art in accordance with the description and drawings of the invention are included within the scope of the present invention. The scope of the invention is defined by the appended claims.

Commercial applicability

The present invention provides a novel core manufacturing system. The novel core making system includes a sand mixing device, a core making device, a movable sealed drum and an automatic pouring device, the bottom of the sand mixing device is provided with a mixed sand outlet, the core making device and the sand mixing device are separately arranged on the same mounting surface, and the top of the core making device is provided with a core sand receiving hopper is equipped, the movable sealed drum is movably arranged between the sand mixing device and the core making device, and the automatic pouring device is arranged on one side of the core making device. Compared to the prior art, in the novel core manufacturing system according to the present embodiment, a one-piece stacking structure is not used, so that the requirements for the height of the entire core manufacturing unit are lower, the height can therefore be lower and the requirements for the assembly height in the workshop are also lower and allow more flexibility. At the same time, a separate movable sealed drum is used for core sand transportation, which can ensure a clean and tidy working environment on site. Furthermore, the separate structure is easy to maintain.

Furthermore, it is to be understood that the novel core manufacturing system of the present invention is reproducible and can be used in several industrial applications. For example, the novel core manufacturing system of the present invention can be used in the field of core manufacturing technology.

Claims (12)

A novel core manufacturing system, characterized in that it comprises: a sand mixing device for sand mixing, the bottom of the sand mixing device being provided with a mixed sand outlet for discharging the mixed core sand; a core making device, wherein the core making device and the sand mixing device are arranged separately on the same mounting surface, and the top of the core making device is equipped with a core sand receiving hopper; a movable sealed drum movably disposed between the sand mixing device and the core making facility for receiving the core sand and transporting it to the core making facility; and an automatic pouring device disposed on one side of the core making device for lifting the movable sealed drum up to the core sand receiving hopper and pouring the core sand contained in the movable sealed drum into the core sand receiving hopper. Novel core manufacturing system Claim 1 , characterized in that the novel core manufacturing system further comprises a mobile trolley disposed between the sand mixing device and the core manufacturing device, the movable sealed drum being arranged on the mobile trolley and the mobile trolley for driving the reciprocating movement of the movable, sealing drum between the sand mixing device and the core production device. Novel core manufacturing system Claim 1 , characterized in that the automatic pouring device comprises a lifting frame, a lifting drive mechanism and a rimming and supporting mechanism, the lifting frame being arranged on one side of the core production device and extending upward, the lifting driving mechanism being arranged on the lifting frame, the rimming and supporting mechanism being geared is connected to the lifting drive mechanism and serves to enclose and support the movable, sealed drum and the lifting drive mechanism serves to drive the approach or removal of the enclosing and carrying mechanism to or from the core sand receiving hopper. Novel core manufacturing system Claim 3 , characterized in that the The lifting frame is fixedly disposed next to the core manufacturing device and its height is not lower than the height of the core manufacturing device, the lifting drive mechanism being arranged on the lifting frame. Novel core manufacturing system Claim 3 or 4 , characterized in that the lifting drive mechanism comprises a lifting assembly, a lifting platform and a connecting rod drive arrangement, the lifting arrangement being arranged on the lifting frame, the lifting platform being geared to the lifting arrangement and drivable for up and down movement along the lifting frame, the connecting rod driving arrangement being arranged on the lifting platform is, the binding and supporting mechanism is connected to the connecting rod drive assembly, the connecting rod driving assembly, when the lifting platform is moved upward to the limit position, serves to drive the movement of the binding and supporting mechanism between the lifting platform and the core sand receiving hopper and for pouring the materials the movable , tight drum can also be driven by the rim and support mechanism for coupling to the core sand receiving funnel. Novel core manufacturing system Claim 5 , characterized in that the lifting assembly is a chain structure comprising a motor and a lifting chain, the lifting chain being movably arranged on the lifting frame, the lifting platform being mounted on the lifting assembly, and the motor being arranged at the bottom of the lifting frame and connected to the lifting chain . Novel core production system according to one of the Claims 4 until 6 , characterized in that the movable, sealed drum comprises a drum body, a closure lid and an assembly for opening and closing the cover, the top of the drum body being provided with an inlet opening, the closure lid being movably arranged at the inlet opening, the bottom of the drum body is provided with an outlet opening, the assembly for opening and closing the cover is arranged at the outlet opening and blocks it, the drum body can be driven to move by the enclosing and carrying mechanism and the assembly for opening and closing the cover can be connected to the core sand receiving funnel and the outlet opening opens when connected to the core sand receiving funnel. Novel core manufacturing system Claim 7 , characterized in that the cover opening and closing assembly includes a first opening and closing lid, a second opening and closing lid, a first connecting rod, a second connecting rod, a first joint gear and a second joint gear, the first joint gear and the second link gear are hinged to the lower portion of the drum body and mesh with each other; wherein one end of the first connecting rod is connected to the first link gear, the other end of the first connecting rod extends obliquely downward in a direction away from the second link gear, and the middle portion of the first connecting rod is connected to the first lid for opening and closing; wherein one end of the second connecting rod is connected to the second link gear, the other end of the second connecting rod extends obliquely downward in a direction away from the first link gear, and the middle portion of the second connecting rod is connected to the second lid for opening and closing; wherein an abutting cover is disposed around the core sand receiving hopper, the first connecting rod and the second connecting rod are opened when the abutting cover comes into contact with them, and the first opening and closing lid and the second opening and closing lid are movable on the one - and outlet opening are arranged and cover them and can be driven by the first connecting rod or the second connecting rod so that they open or close the inlet and outlet opening. Novel core manufacturing system Claim 8 , characterized in that a first roller is arranged at the end of the first connecting rod remote from the first joint gear and a second roller is arranged at the end of the second connecting rod remote from the second joint gear, the adjacent cover located on two sides of the core sand receiving funnel being provided with an inclined limit block, which is applied to the first roller and the second roller. Novel core manufacturing system Claim 3 or 4 , characterized in that the lifting drive mechanism comprises a lifting drive element, a first pouring rail and a second pouring rail, wherein the first pouring rail and the second pouring rail are arranged on the lifting frame, the upper end of the first pouring rail is bent in the direction of the core sand receiving funnel and thus forms a first bending section , the upper end of the second pouring rail is bent in the direction of the core sand receiving funnel and thus one forms the second bending section, the first bending section is located above the second bending section, the edging and carrying mechanism is provided with a transmission lever, the transmission lever is simultaneously movably connected to the first pouring rail and the second pouring rail and the lifting drive element is at the lower end of the first pouring rail and the second pouring rail is arranged and serves to drive the movement of the enclosure and support mechanism along the first pouring rail and the second pouring rail, wherein when the enclosure and support mechanism is moved to the first bending section and second bending section, the movable, sealed drum is inverted and with is connected to the core sand receiving funnel. Novel core manufacturing system according to Claim 10 , characterized in that the movable, sealed drum comprises a drum body and a cover opening and closing assembly, the top of the drum body being provided with an inlet and outlet opening, the cover opening and closing assembly being arranged at and blocking the inlet and outlet opening, the drum body being drivable for movement by the enclosing and supporting mechanism, and the cover opening and closing assembly being connectable to the core sand receiving hopper and opening the inlet and outlet opening when connected to the core sand receiving hopper. Novel core manufacturing system Claim 11 , characterized in that the cover opening and closing assembly comprises a first opening and closing cover, a second opening and closing cover, a first connecting rod, a second connecting rod, a first joint gear, a second joint gear and an elastic connecting element, wherein the first link gear and the second link gear are hinged to the lower portion of the drum body and are engaged with each other; wherein one end of the first connecting rod is connected to the first link gear, the other end of the first connecting rod extends obliquely downward in a direction away from the second link gear, and the middle portion of the first connecting rod is connected to the first lid for opening and closing; wherein one end of the second connecting rod is connected to the second link gear, the other end of the second connecting rod extends obliquely downward in a direction away from the first link gear, and the middle portion of the second connecting rod is connected to the second lid for opening and closing; wherein a limiting block is disposed on one side of the core sand receiving hopper, either the first connecting rod or the second connecting rod is opened when the limiting block comes into contact therewith, and the first opening and closing lid and the second opening and closing lid are movably attached to the Inlet and outlet openings are arranged and cover them and are drivable by the first connecting rod and the second connecting rod, respectively, so that they open or close the inlet and outlet openings; wherein the two ends of the elastic connecting member are respectively connected to the middle portion of the first connecting rod and the second connecting rod, whereby the first connecting rod and the second connecting rod approach each other.

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