CN220943166U - Upper box turnover machine and sand box carrying system - Google Patents

Abstract

The embodiment of the application provides an upper box turnover machine and a sand box carrying system, wherein the upper box turnover machine comprises a supporting frame, two track frames are arranged on the supporting frame, pulley assemblies are slidably arranged in the track frames, a traction beam is connected between the two pulley assemblies and then is connected with the output end of a linear reciprocating driving device, a rotating arm device is arranged between the two track frames, the rotating arm device is rotatably connected with the two pulley assemblies through a first rotating shaft, one pulley assembly is provided with a rotating arm driving device, a box receiving positioning device is arranged on the rotating arm device, and the sand box can be fixed on the rotating arm device when the box receiving positioning device is started; the sand box carrying system comprises a sand box placing frame, an upper box turnover machine and a lifting conveyor which are sequentially arranged. By adopting the scheme provided by the application, the automation of carrying the sand boxes in batches can be realized, the sand boxes are ensured to be firmly positioned on the upper box turnover machine in the carrying process, the occupied space is small, the working efficiency is high, and the method is suitable for the technical field of casting modeling.

Description

Upper box turnover machine and sand box carrying system

Technical Field

The application relates to the technical field of casting modeling, in particular to a box feeding turnover machine and a sand box carrying system.

Background

The sand casting process is a casting method for preparing a casting mould by taking sand as a main molding material, and sand casting is the most traditional casting method. The traditional sand casting process comprises the following steps: sand matching, molding, core making, modeling, casting, shakeout, polishing, inspection and the like.

In the traditional sand box casting flow production line, when the sand box is carried, manual work is mostly adopted, and the carrying process is time-consuming and labor-consuming due to the weight of the sand box, so that the efficiency is low, and the work injury is easy to cause in the carrying process; and when the sand box is conveyed in the mode of lifting/sliding ropes and the like, the sand box moves at a certain height from the ground, once rope/clamp faults occur, the falling sand box can cause more serious damage to a machine or even a human body, and the whole set of lifting/sliding rope device occupies a large amount of space, so that the space utilization rate of the workshop is reduced. There is an urgent need in the market for a device that is safe and reliable and can realize automated handling of batch sand boxes.

Disclosure of Invention

In order to solve one of the technical defects, an embodiment of the application provides a box loading turnover machine and a sand box conveying system.

According to a first aspect of the embodiment of the application, there is provided a box loading turnover machine, comprising a supporting frame, two mutually parallel track frames are mounted on the supporting frame, pulley assemblies are slidably arranged in the track frames, a linear reciprocating driving device is mounted on the supporting frame at the initial position of the track frames, a traction beam is connected between the two pulley assemblies, the output end of the linear reciprocating driving device is connected with the traction beam, a rotating arm device capable of bearing a sand box is mounted between the two track frames, the rotating arm device is rotatably connected with the two pulley assemblies through a first rotating shaft, a rotating arm is mounted on one pulley assembly for driving, the rotating arm device can rotate around the first rotating shaft between vertical and horizontal under the driving of the rotating arm driving device, a box receiving positioning device is mounted on the rotating arm device, and the box receiving positioning device can fix the sand box on the rotating arm device when being started.

Further, the rocking arm device includes left rocking arm and the right rocking arm of vertical setting, the setting space that bears the weight of the sand box is equipped with to rocking arm device top, install the second pivot between left rocking arm and the right rocking arm, the second pivot is located setting space below and is close to the top of sand box, connect case positioner to include two at least hook mechanisms that bend towards sand box direction, hook mechanism includes claw and pole portion that link to each other, keep away from the one end and the second pivot rotation of claw are connected on the pole portion, install first supporting beam between left rocking arm and the right rocking arm, first supporting beam is located setting space below and is close to the bottom of sand box, first cylinder is installed to corresponding claw department on the first supporting beam, the cylinder bottom and the first supporting beam of first cylinder are articulated, the output and the bottom of claw portion of first cylinder are articulated.

Further, install the second support beam between left rocking arm and the right rocking arm, the second support beam is located and settles space one side and is close to the top of sand box, connects case positioner still includes hold-down mechanism, and hold-down mechanism includes the second cylinder, and the cylinder bottom of second cylinder sets up on the second support beam, and the output of second cylinder is towards the top of sand box, and the output of second cylinder is connected with the gland.

Further, the cylinder support is installed in the outside of left rocking arm and right rocking arm, and the cylinder support is located the space below of settling and is close to the middle part of sand box, connects case positioner still to include positioning mechanism, and positioning mechanism includes the third cylinder, and the cylinder bottom of third cylinder sets up on the cylinder support, and the output of third cylinder is connected with the spacer bush towards the direction of settling space.

Further, the track frame is vertical, and the one end of two track frames aligns, length equals, and the track frame includes two horizontal crossbeams that are parallel to each other, and the both ends of two horizontal crossbeams link to each other through vertical pillar respectively, and the guide rail is installed respectively to top and bottom in the track frame, and pulley assembly slides along the guide rail.

Further, the pulley assembly comprises an inner side plate and an outer side plate, at least two rotatable pulleys are arranged between the inner side plate and the outer side plate, grooves of the pulleys are matched with the guide rails, bearing seats are further arranged between the inner side plate and the outer side plate, two ends of the first rotating shaft are respectively connected with the two pulley assemblies in a rotating mode through the bearing seats, and one ends of the two inner side plates extend and are connected with the traction beam.

Further, one of them pulley assembly's lateral plate is to being stretched as the rocking arm drive mounting panel after keeping away from the direction of first pivot, and the rocking arm drive includes the fourth cylinder, and the cylinder bottom of fourth cylinder is articulated with rocking arm drive mounting panel, is connected with the swing arm after the first pivot passes rocking arm drive mounting panel, and the swing arm can rotate in the vertical plane of perpendicular to first pivot, and the output of fourth cylinder is articulated with the swing arm.

Further, the cylinder support extends in a direction away from the left rotating arm or the right rotating arm until the cylinder support exceeds the outside of the track frame, and the third cylinder is arranged on the outside of the track frame.

According to a second aspect of the embodiment of the present application, there is provided a sand box handling system including a cope turning machine, a sand box placing rack provided at a start position of an adjacent cope turning machine, a row of vertically placed sand boxes provided on the sand box placing rack, the sand box placing rack being capable of intermittently transporting the sand boxes toward the cope turning machine, a lifting conveyor provided at an end position of the adjacent cope turning machine, the lifting conveyor being capable of lifting the sand boxes traveling to the end position on the cope turning machine and continuing to forward transport the sand boxes to equipment of a next process.

Further, two sand box handles are respectively arranged on two sides of the sand box, positioning blocks are arranged in the middle of two sides of the sand box, and the positioning blocks are matched with the positioning sleeves.

By adopting the upper box overturning machine and the sand box carrying system provided by the embodiment of the application, complete circulation of box receiving, box conveying, box unloading, return stroke and box receiving can be realized, batch carrying of sand boxes is realized, and in the process of box conveying, the sand boxes are firmly fixed on the bearing surface of the rotating arm device through the box receiving positioning device all the time, so that unnecessary potential safety hazards caused by separation of the sand boxes in the carrying process are avoided; the whole sand box conveying process completely depends on mechanical equipment, so that the full automation of sand box conveying is realized, no manpower is needed, and the conveying efficiency is greatly improved; compared with the mode of carrying the sand box by using a lifting/sliding rope and the like, the whole device of the embodiment has small occupied area, and saves space resources and unnecessary equipment investment.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:

fig. 1 is a schematic structural diagram of an upper box turnover machine according to an embodiment of the present application;

Fig. 2 is a schematic diagram of a vertical state of an upper box turnover machine according to an embodiment of the present application;

FIG. 3 is a schematic diagram of a horizontal state of an upper box turnover machine according to an embodiment of the present application;

fig. 4 is a schematic perspective view of a rotating arm device according to an embodiment of the present application;

FIG. 5 is a top view of a swivel arm assembly according to an embodiment of the application;

FIG. 6 is a schematic view of a support frame and a track frame according to an embodiment of the present application;

fig. 7 is a schematic structural view of a pulley assembly according to an embodiment of the present application;

Wherein 10 is a support frame, 101 is a support leg, 102 is a third support beam, 20 is a track frame, 201 is a horizontal cross beam, 202 is a vertical strut, 203 is a guide rail, 30 is a pulley assembly, 301 is a traction beam, 302 is a boom drive, 303 is an inner side plate, 304 is an outer side plate, 305 is a pulley, 306 is a bearing seat, 307 is a boom drive mounting plate, 308 is a fourth cylinder, 309 is a swing arm, 40 is a sand box, 401 is a sand box handle, 402 is a positioning sleeve, 50 is a swivel arm device, 501 is a first rotating shaft, 502 is a left swivel arm, 503 is a right swivel arm, 504 is a second rotating shaft, 505 is a first support beam, 506 is a second support beam, 507 is a cylinder support, 60 is a hook mechanism, 601 is a claw, 602 is a rod portion, 603 is a first cylinder, 70 is a pressing mechanism, 701 is a second cylinder, 702 is a gland, 80 is a positioning mechanism, 801 is a third cylinder, and 802 is a positioning sleeve.

Detailed Description

In order to make the technical solutions and advantages of the embodiments of the present application more apparent, the following detailed description of exemplary embodiments of the present application will be given with reference to fig. 1 to 7, and it is apparent that the described embodiments are only some embodiments of the present application, not exhaustive of all embodiments. It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other.

In the process of realizing the application, the inventor finds that in the traditional sand box casting flow production line, when the sand box is transported, manual work is mostly adopted, and the transportation process is time-consuming and labor-consuming due to the weight of the sand box, so that the efficiency is low, and the work injury is easy to cause in the transportation process; and when the sand box is conveyed in the mode of lifting/sliding ropes and the like, the sand box moves at a certain height from the ground, once rope/clamp faults occur, the falling sand box can cause more serious damage to a machine or even a human body, and the whole set of lifting/sliding rope device occupies a large amount of space, so that the space utilization rate of the workshop is reduced. There is an urgent need in the market for a device that is safe and reliable and can realize automated handling of batch sand boxes.

In view of the above, as shown in fig. 1-3, the embodiment of the present application provides an upper box turnover machine, which includes a supporting frame 10 responsible for supporting and bearing, the supporting frame 10 includes two vertically arranged and grounded supporting legs 101, two mutually parallel rail frames 20 are installed on the supporting frame 10, a starting position of the rail frames 20 is connected with a top of the supporting legs 101, a pulley assembly 30 is slidably installed in the rail frames 20, a linear reciprocating driving device (not shown) is installed on the supporting frame 10 at the starting position of the rail frames 20, a third supporting beam 102 is installed between the two supporting legs 101, the linear reciprocating driving device is installed on the third supporting beam 102, a traction beam 301 is connected between the two pulley assemblies 30, an output end of the linear reciprocating driving device is connected with the traction beam 301, a boom device 50 capable of bearing a sand box 40 is installed between the two rail frames 20, the device 50 is rotatably connected with the two pulley assemblies 30 through a first rotating shaft 501, a boom device 50 is installed on the pulley assembly 30, a boom device 50 is capable of rotating around the first rotating shaft 501 and is capable of positioning the boom device on the sand box 50 when the boom device is fixed.

In specific implementation, as shown in fig. 2, the initial state of the upper box turnover machine is: the linear reciprocating driving device drives the pulley assembly 30 to move to the initial position of the track frame 20 (i.e. the left end of the interior of the track frame 20 in fig. 2), and the boom driving device 302 drives the boom device 50 to rotate to the vertical state.

And (3) box connection: when the upper box turnover machine is in the initial state, the bearing surface of the rotating arm device 50 is abutted with the vertically placed sand box 40, and the box connecting and positioning device is started to position the sand box 40 on the rotating arm device 50. Carrying: the start state of the box-receiving positioning device is maintained, the boom drive 302 drives the boom device 50 to rotate 90 ° to a horizontal state (as shown in fig. 3), and simultaneously the linear reciprocating drive device drives the pulley assembly 30 to move forward to the end position of the track frame 20 (i.e. the right end inside the track frame 20 in fig. 2). Unloading: the matchbox positioning device is closed, the connection between the sand box 40 and the tumbler device 50 is released, and the sand box 40 is removed from the tumbler device 50. Backhaul: the empty boom apparatus 50 is returned to the initial state by the linear reciprocating drive apparatus and the boom drive 302, and is ready for the next box receiving step. So far a complete cycle is formed.

The upper box overturning machine provided by the embodiment can realize complete circulation of box receiving, box conveying, box unloading, return stroke and box receiving, realize batch transportation of sand boxes, and firmly fix the sand boxes on the bearing surfaces of the rotating arm devices through the box receiving positioning devices all the time in the box conveying process, so that unnecessary potential safety hazards caused by separation of the sand boxes in the transportation process are avoided; the whole sand box conveying process completely depends on mechanical equipment, so that the full automation of sand box conveying is realized, no manpower is needed, and the conveying efficiency is greatly improved; compared with the mode of carrying the sand box by using a lifting/sliding rope and the like, the whole device of the embodiment has small occupied area, and saves space resources and unnecessary equipment investment.

As a preferred solution, as shown in fig. 3, when the sand box 40 is horizontally arranged on the tumbler device 50, one side of the sand box 40 near the first rotating shaft 501 is the bottom thereof, one side of the sand box 40 far away from the first rotating shaft 501 is the top thereof, as shown in fig. 5-6, the tumbler device 50 comprises a left tumbler 502 and a right tumbler 503 which are vertically arranged, the left tumbler 502 and the right tumbler 503 are in a triangular frame structure, the distance between the left tumbler 502 and the right tumbler 503 is not greater than the length of the sand box 40, a placing space for bearing the sand box 40 is arranged above the tumbler device 50, a second rotating shaft 504 is arranged between the left tumbler 502 and the right tumbler 503, the second rotating shaft 504 is arranged below the placing space and near the top of the sand box 40, the box-connecting positioning device comprises at least two hook claw mechanisms 60 bent towards the direction of the sand box 40, each hook claw mechanism 60 comprises a claw 601 and a rod 602, one end of each rod 602 far away from the claw 601 is rotationally connected with the second rotating shaft 504, a first supporting beam 505 is arranged between the left tumbler 502 and the right tumbler 503, a first supporting cylinder 505 is arranged above the first supporting beam 505, a second supporting cylinder 505 is arranged below the placing space and near the bottom of the first rotating shaft 505, a first cylinder 603 is hinged to the first cylinder 601, and a first cylinder 603 is arranged near the bottom of the first cylinder 603.

In the box-connecting step, the box-connecting positioning device is started, the first air cylinder 603 drives the claw 601 to approach the vertically placed sand box 40, the claw mechanism 60 rotates around the second rotating shaft until the claw 601 completely fastens the bottom of the sand box 40, and the partial fastening of the sand box 40 is completed.

As a preferable solution, as shown in fig. 6, a second supporting beam 506 is installed between the left rotating arm 502 and the right rotating arm 503, the second supporting beam 506 is located at one side of the installation space and is close to the top of the sand box 40, the box-receiving positioning device further includes a pressing mechanism 70, the pressing mechanism 70 includes a second air cylinder 701, the cylinder bottom of the second air cylinder 701 is disposed on the second supporting beam 506, the output end of the second air cylinder 701 faces the top of the sand box 40, and the output end of the second air cylinder 701 is connected with a gland 702.

In the concrete implementation, in the box-connecting step, the box-connecting positioning device is started, the second cylinder 701 drives the gland 702 to approach to the top of the sand box 40 until the top of the sand box 40 is abutted, and the gland is matched with the claw mechanism 60 to fasten the top and the bottom of the sand box 40.

As a preferable scheme, as shown in fig. 1-4, the outer sides of the left rotating arm 502 and the right rotating arm 503 are provided with a cylinder support 507, the cylinder support 507 is located below the installation space and near the middle of the sand box 40, the box-receiving positioning device further comprises a positioning mechanism 80, the positioning mechanism 80 comprises a third cylinder 801, the bottom of the third cylinder 801 is arranged on the cylinder support 507, the output end of the third cylinder 801 faces the direction of the installation space, and the output end of the third cylinder 801 is connected with a positioning sleeve 802. Specifically, as shown in fig. 4 and 5, two sand box handles 401 are respectively installed on two sides of the sand box 40, a positioning block 402 is installed in the middle of two sides of the sand box, and the positioning block 402 is matched with the positioning sleeve 802.

In the concrete implementation, in the box-receiving step, the box-receiving positioning device is started, the third cylinder 801 drives the positioning sleeve 802 to approach the sand box 40 until the positioning blocks on the sand box 40 are embedded into the positioning sleeve 802, and the two positioning sleeves 802 respectively finish positioning on the positioning blocks on two sides of the sand box 40.

The box receiving positioning device comprises a claw mechanism, a pressing mechanism and a positioning mechanism, wherein the claw mechanism, the pressing mechanism and the positioning mechanism are synchronous and matched in the box receiving step, the positioning mechanism is used for limiting the sand box in the length direction of the sand box, the claw mechanism and the positioning mechanism are used for limiting the sand box in the width direction of the sand box, the claw mechanism and the pressing mechanism apply pressing force to the top and the bottom of the sand box, the sand box cannot be separated from the rotating arm device when the rotating arm device is overturned from a vertical state to a horizontal state, the weight of the sand box itself is matched with the box receiving positioning device in the rotating arm device rotating to the horizontal state and the box conveying step, and the sand box is firmly clung to the rotating arm device until the box conveying step is completed.

The box receiving positioning device can also finish positioning the sand boxes in the box receiving step, so that each time the sand boxes are carried, the sand boxes are exactly positioned in the designed placement space, which is a necessary premise for completing the work of carrying the sand boxes in batches; and the box receiving positioning device can firmly connect and position the sand box and the rotating arm device in the box conveying step, namely, when the sand box rotates and moves horizontally along with the rotating arm device, so that the sand box is prevented from being separated in the carrying process, and the safety of the operation environment is effectively ensured.

As a preferable scheme, as shown in fig. 6, the track frames 20 are vertically arranged, one ends of the two track frames 20 are aligned and have equal length, so that synchronous operation of the two groups of pulley assemblies 30 is ensured, the track frames 20 comprise two horizontal beams 201 which are parallel to each other, two ends of the two horizontal beams 201 are respectively connected through vertical struts 202, in the same track frame 20, the two vertical struts 202 are respectively used as starting points and ending points of the pulley assemblies 30, the travel of the pulley assemblies 30 is limited, the top and bottom in the track frames 20 are respectively provided with a guide rail 203, the pulley assemblies 30 slide along the guide rails 203, and due to inertia when the rotating arm device 50 rotates to a horizontal state, the pulley assemblies 30 impact the track frames 20, if only the bottom guide rail possibly has a derailment phenomenon, the arrangement of the top and bottom guide rails 203 can limit the displacement of the pulley assemblies 30 in the vertical direction, so that normal operation of the whole device is ensured.

As a preferred solution, as shown in fig. 7, the pulley assembly 30 includes an inner side plate 303 and an outer side plate 304, at least two rotatable pulleys 305 are installed between the inner side plate 303 and the outer side plate 304, grooves of the pulleys 305 are matched with the guide rail 203, bearing seats 306 are installed between the inner side plate 303 and the outer side plate 304, two ends of the first rotating shaft 501 are respectively connected with the two pulley assemblies 30 in a rotating manner through the bearing seats 306, and one ends of the two inner side plates 303 extend and are connected with the traction beam 301.

Specifically, in the same track frame 20, the guide rail 203 may be a triangular guide rail, the rail surface of the guide rail 203 at the top is downward, the rail surface of the guide rail 203 at the bottom is upward, and the guide rail is matched with the groove of the pulley 305, so that the guiding and limiting effects of the guide rail are better realized.

As a preferred solution, as shown in fig. 1-3, the outer side plate 304 of one pulley assembly 30 is extended away from the first rotating shaft 501 to serve as a swinging arm driving mounting plate 307, the swinging arm driving unit 302 includes a fourth cylinder 308, the cylinder bottom of the fourth cylinder 308 is hinged with the swinging arm driving mounting plate 307, the first rotating shaft 501 passes through the swinging arm driving mounting plate 307 and is connected with a swinging arm 309, and the swinging arm 309 can rotate in a vertical plane perpendicular to the first rotating shaft 501, and the output end of the fourth cylinder 308 is hinged with the swinging arm 309.

In particular, the output end of the fourth cylinder drives the swing arm 309 to rotate, so as to drive the first rotation shaft 501 to rotate, and further drive the swing arm device 50 to complete the rotation motion.

As a preferable solution, as shown in fig. 1, in order to ensure the normal operation of the third cylinder 801 and avoid the third cylinder from colliding with the track frame 20 after the boom device 50 rotates to the horizontal state, the cylinder support 507 extends in a direction away from the boom device 50 until the third cylinder exceeds the track frame 20, the third cylinder 801 is disposed outside the track frame 20, and in order to avoid friction between the boom device 50 and the top of the track frame 20 during the translation process, when the boom device 50 rotates to the horizontal state, a gap is left between the bottom of the cylinder support 507 and the top of the track frame 20.

The embodiment also provides a sand box carrying system, including foretell upper box upset machine, the home position of adjacent upper box upset machine is provided with the sand box rack, be provided with the sand box 40 of a row of vertical settings on the sand box rack, the sand box rack can be with sand box 40 intermittent type nature towards the direction transportation of upper box upset machine, the destination point of adjacent upper box upset machine is provided with the lift conveyer, the lift conveyer can lift up the sand box 40 of advancing to destination point on the upper box upset machine when connecing case positioner to loosen, and continue to carry sand box 40 forward to the equipment of next process.

In the concrete implementation, in the box receiving step, a box receiving positioning device is started to fix the first sand box 40 on the sand box placing frame on the rotating arm device 50, when the first sand box 40 is received, the second sand box 40 is pushed to the first position by the sand box placing frame to wait for next box receiving, and the sand boxes 40 on the sand box placing frame can be periodically replenished, so that the requirement of carrying the sand boxes 40 is met; the lifting conveyor can realize vertical lifting and horizontal movement, the lifting conveyor is provided with two lifting platforms, when the sand box 40 is lifted, the two lifting platforms are lifted synchronously until the two lifting platforms simultaneously abut against handles 401 on two sides of the sand box 40, the lifting is continued to a preset height, the preset height needs to enable the sand box 40 to be separated from the rotating arm device 50, and a space for returning the rotating arm device 50 is reserved at the same time, after the preset height is reached, the rotating arm device 50 returns, the lifting conveyor horizontally moves, and the sand box 40 is conveyed to equipment in the next procedure.

The sand box conveying system provided by the embodiment is used by matching the sand box placing frame, the upper box overturning machine and the lifting conveyor, solves the problem of sand box supply in sand box batch conveying, and ensures that the whole sand box conveying process is more automatic, so that the working efficiency of sand box conveying is effectively improved.

According to the upper box overturning machine and the sand box carrying system, the upper box overturning machine realizes that the sand boxes rotate and translate along with the rotating arm assembly through the mutual matching of the rotating arm device and the pulley assembly, so that the sand boxes can be carried from the point A to the point B, the circulation of box receiving, box conveying, box unloading, return stroke and box receiving can be repeatedly carried out, and a plurality of sand boxes can be carried one by one in batches; in the processes of box receiving and box transporting, the sand box and the rotating arm device are firmly connected and positioned through synchronous cooperation among the claw mechanism, the pressing mechanism and the positioning mechanism, so that the sand box is prevented from being separated, and the device is safe and reliable; the sand box conveying system realizes high automation of the whole sand box conveying process, greatly improves the working efficiency, occupies small area, saves space resources and unnecessary equipment investment, and has strong practicability.

In the description of the present application, it should be understood that the terms "center", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may communicate with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

While preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the application.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims (10)

1. The upper box turnover machine is characterized by comprising a supporting frame (10), two mutually parallel track frames (20) are arranged on the supporting frame (10), pulley assemblies (30) are slidably arranged in the track frames (20), a linear reciprocating driving device is arranged at the starting position of the track frames (20) on the supporting frame (10), a traction beam (301) is connected between the two pulley assemblies (30), the output end of the linear reciprocating driving device is connected with the traction beam (301), a rotating arm device (50) capable of bearing a sand box (40) is arranged between the two track frames (20), the rotating arm device (50) is rotatably connected with the two pulley assemblies (30) through a first rotating shaft (501), one pulley assembly (30) is provided with a rotating arm driving device (302), the rotating arm device (50) can rotate between the vertical and horizontal directions around the first rotating shaft (501) under the driving of the pulley assemblies (302), and a box connecting positioning device is arranged on the rotating arm device (50), and the rotating arm device (50) can be fixed on the sand box connecting positioning device (40).

2. The upper box turnover machine according to claim 1, characterized in that the turning arm device (50) comprises a left turning arm (502) and a right turning arm (503) which are vertically arranged, a placement space for bearing the sand box (40) is arranged above the turning arm device (50), a second rotary shaft (504) is arranged between the left turning arm (502) and the right turning arm (503), the second rotary shaft (504) is arranged below the placement space and near the top of the sand box (40), the box receiving positioning device comprises at least two claw mechanisms (60) bending towards the sand box (40), the claw mechanisms (60) comprise claw parts (601) and rod parts (602) which are connected with each other, one end of the rod parts (602) far away from the claw parts (601) is rotatably connected with the second rotary shaft (504), a first supporting beam (505) is arranged between the left turning arm (502) and the right turning arm (503), the first supporting beam (505) is arranged below the placement space and near the top of the sand box (40), the first supporting beam (505) is hinged with the first cylinder (603) at the bottom of the first cylinder (603), and the first cylinder (603) is hinged with the first cylinder (603).

3. The upper box turnover machine according to claim 2, characterized in that a second supporting beam (506) is installed between the left rotating arm (502) and the right rotating arm (503), the second supporting beam (506) is located at one side of the installation space and is close to the top of the sand box (40), the box receiving positioning device further comprises a pressing mechanism (70), the pressing mechanism (70) comprises a second cylinder (701), the cylinder bottom of the second cylinder (701) is arranged on the second supporting beam (506), the output end of the second cylinder (701) faces the top of the sand box (40), and the output end of the second cylinder (701) is connected with a pressing cover (702).

4. The upper box turnover machine according to claim 2, characterized in that the cylinder support (507) is installed on the outer sides of the left rotating arm (502) and the right rotating arm (503), the cylinder support (507) is located below the placement space and near the middle of the sand box (40), the box receiving positioning device further comprises a positioning mechanism (80), the positioning mechanism (80) comprises a third cylinder (801), the cylinder bottom of the third cylinder (801) is arranged on the cylinder support (507), the output end of the third cylinder (801) faces the direction of the placement space, and the output end of the third cylinder (801) is connected with a positioning sleeve (802).

5. The upper box turnover machine according to claim 1, wherein the track frames (20) are vertically arranged, one ends of the two track frames (20) are aligned and have equal length, the track frames (20) comprise two horizontal beams (201) parallel to each other, two ends of the two horizontal beams (201) are respectively connected through vertical struts (202), guide rails (203) are respectively mounted on the top and the bottom in the track frames (20), and the pulley assemblies (30) slide along the guide rails (203).

6. The upper box turnover machine according to claim 5, wherein the pulley assembly (30) comprises an inner side plate (303) and an outer side plate (304), at least two rotatable pulleys (305) are installed between the inner side plate (303) and the outer side plate (304), grooves of the pulleys (305) are matched with the guide rail (203), bearing seats (306) are further installed between the inner side plate (303) and the outer side plate (304), two ends of the first rotating shaft (501) are respectively connected with the two pulley assemblies (30) in a rotating mode through the bearing seats (306), and one ends of the two inner side plates (303) extend and are connected with the traction beam (301).

7. The upper box turnover machine according to claim 6, characterized in that an outer side plate (304) of one of the pulley assemblies (30) is extended away from a first rotating shaft (501) to serve as a rotating arm driving mounting plate (307), the rotating arm driving plate (307) is hinged with a cylinder bottom of the fourth cylinder (308), a swinging arm (309) is connected to the first rotating shaft (501) after passing through the rotating arm driving mounting plate (307), the swinging arm (309) can rotate in a vertical plane perpendicular to the first rotating shaft (501), and an output end of the fourth cylinder (308) is hinged with the swinging arm (309).

8. The upper box tilting machine according to claim 4, characterized in that the cylinder support (507) extends away from the swivel arm arrangement (50) until beyond the rail frame (20), the third cylinder (801) being arranged outside the rail frame (20), a gap being left between the bottom of the cylinder support (507) and the top of the rail frame (20) when the swivel arm arrangement (50) is rotated to the horizontal.

9. The sand box carrying system is characterized by comprising the upper box turnover machine as claimed in claim 1, wherein a sand box placing rack is arranged at the initial position of the upper box turnover machine, a row of vertically placed sand boxes (40) are arranged on the sand box placing rack, the sand box placing rack can intermittently transport the sand boxes (40) towards the direction of the upper box turnover machine, a lifting conveyor is arranged at the final position of the upper box turnover machine, and the lifting conveyor can lift the sand boxes (40) travelling to the final position on the upper box turnover machine and continuously convey the sand boxes (40) to equipment of a next procedure forward.

10. The upper box turnover machine of claim 4, wherein two sand box handles (401) are respectively installed on two sides of the sand box (40), a positioning block (402) is installed in the middle of two sides of the sand box, and the positioning block (402) is matched with the positioning sleeve (802).