A double-station molding machine

Abstract

The present invention provides a double-station molding machine, which relates to the technical field of molding machines. It includes an upper frame, a lower frame, a rotating support mechanism, a guide optical axis, an upper auxiliary molding chamber, an upper molding chamber, a lower molding chamber, a lower auxiliary molding chamber, and a lower workbench. The rotating support mechanism is connected to the upper frame and the lower frame respectively. The rotating support mechanism separates the space between the upper frame and the lower frame to form a molding station and a sand removal station. There are two guide optical axes, both of which are located on one side of the molding station and are symmetrically arranged. The two ends of the guide optical axis are connected to the upper frame and the lower frame respectively. The double-station molding machine is provided with a guide optical axis between the upper frame and the lower frame. The upper auxiliary molding chamber, the lower auxiliary molding chamber, and the lower workbench are all uniformly guided and positioned on the guide optical axis, thereby effectively avoiding misalignment of products between the upper molding chamber and the lower molding chamber when closing the box, achieving high-precision positioning, and improving the product yield.

Description

Technical Field

[0001] The present invention relates to the technical field of molding machines, in particular to a double-station molding machine. Background Art

[0002] The molding machine is a casting equipment used to make sand molds. The double-station molding machine is a classification of the molding machine. Due to the arrangement of the rotary table, the guide mechanisms of the upper and lower molding mechanisms of the double-station molding machine are usually arranged on the upper frame and the lower frame respectively. It is usually chosen to arrange guide rods on the upper frame and the lower frame respectively.

[0003] The applicant has found that the prior art has at least the following technical problems: due to the relatively large stroke, the guide mechanisms of the upper and lower molding mechanisms may produce slight misalignment when closing the box, resulting in misalignment of the upper and lower molded products. Summary of the Invention

[0004] The present invention aims to provide a dual-station molding machine to address the existing technical problem that the guide mechanisms of the upper and lower molding mechanisms are typically located on the upper and lower frames, respectively, resulting in misalignment during assembly. The various technical effects achieved by the preferred technical solutions provided by the present invention are detailed below.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A double-station molding machine comprises an upper frame, a lower frame, a rotating support mechanism, a guide optical axis, an upper auxiliary molding chamber, an upper molding chamber, a lower molding chamber, a lower auxiliary molding chamber and a lower workbench;

[0007] The rotating support mechanism is connected to the upper frame and the lower frame respectively, and the rotating support mechanism separates the space between the upper frame and the lower frame into a molding station and a sand removal station;

[0008] There are two guide light shafts, both of which are located on one side of the molding station and are symmetrically arranged, and both ends of the guide light shafts are connected to the upper frame and the lower frame respectively;

[0009] The upper auxiliary molding chamber, the lower auxiliary molding chamber, and the lower workbench are movably connected to the two guide optical axes in sequence from top to bottom. The upper auxiliary molding chamber is connected to the upper frame via a first adjustment assembly, and the lower auxiliary molding chamber is connected to the lower workbench via a second adjustment assembly. The bottom of the lower workbench is connected to a first hydraulic assembly, and the first hydraulic assembly is connected to the lower frame.

[0010] The two upper molding chambers are placed on the rotating support mechanism and are respectively located on one side of the molding station and one side of the desanding station; the two lower molding chambers are placed on the rotating support mechanism and are respectively located on one side of the molding station and one side of the desanding station.

[0011] Preferably, the rotating support mechanism includes a rotating optical axis, a bracket assembly and a rotating drive assembly, the rotating optical axis is vertically arranged and its two ends are movably connected to the upper frame and the lower frame respectively, the bracket assembly is connected to the rotating optical axis and can rotate synchronously with the rotating optical axis, the two upper molding chambers and the two lower molding chambers are placed on the bracket assembly, one end of the rotating optical axis is connected to the rotating drive assembly, and the rotating drive assembly can drive the rotating optical axis, the bracket assembly, the upper molding chamber and the lower molding chamber to rotate to replace the upper molding chamber and the lower molding chamber on the molding station and the sand removal station.

[0012] Preferably, it also includes a sand shooting mechanism, which includes a first sand shooting assembly, a second sand shooting assembly and a gas tank, the first sand shooting assembly and the gas tank are connected to the upper frame, the first sand shooting assembly is connected to the upper molding chamber and the gas tank through pipelines, the second sand shooting assembly is connected to the upper frame and the lower frame through a connecting column, and the second sand shooting assembly is connected to the lower molding chamber and the external gas tank through pipelines.

[0013] Preferably, it also includes a sand removal mechanism, which includes a sand removal frame, a connecting plate, a second hydraulic assembly and a sand removal frame. The sand removal frame is connected to the upper frame and is located above the upper molding chamber on the side of the sand removal station. The connecting plate is connected to the second hydraulic assembly and is connected to the sand removal frame. The second hydraulic assembly is connected to the lower frame. The second hydraulic assembly can sequentially drive the connecting plate, the sand removal frame, the lower molding chamber on the side of the sand removal station and the upper molding chamber on the side of the sand removal station to move upward.

[0014] Preferably, it also includes a sand pushing mechanism, which includes a sand pushing plate, a driving assembly, a gear assembly, a rack assembly and a transition plate assembly. The sand pushing plate is connected to the front end of the driving assembly, and the left and right sides of the driving assembly are respectively driven and connected to one of the gear assemblies. Each of the gear assemblies is movably connected to one of the rack assemblies. The rack assemblies are respectively connected to the upper frame and the lower frame. The connecting plate is located in front of the sand pushing plate in the initial state, and the transition plate assembly is connected to the lower frame and is located in front of the connecting plate.

[0015] Preferably, the bracket assembly includes a fixed support, an upper rotating bracket, a lower rotating bracket and a locking structure, the fixed support is sleeved on the outside of the rotating optical axis, the upper rotating bracket and the lower rotating bracket are both sleeved on the outside of the rotating optical axis and are respectively located above and below the fixed support, the rotating optical axis is connected to a locking structure at the top of the upper rotating bracket and the bottom of the lower rotating bracket, the two locking structures lock the fixed support, the upper rotating bracket, the lower rotating bracket and the rotating optical axis together, the upper molding chamber is placed on the upper rotating bracket, and the lower molding chamber is placed on the lower rotating bracket.

[0016] Preferably, the rotating support mechanism also includes an upper rotating bearing assembly and a lower rotating bearing assembly, the top of the rotating optical axis is movably connected to the upper frame through the upper rotating bearing assembly, and the bottom of the rotating optical axis is movably connected to the lower frame through the lower rotating bearing assembly.

[0017] Preferably, the upper auxiliary molding chamber, the lower auxiliary molding chamber and the lower workbench are each provided with two bending movable arms and are movably connected to two guide light axes via the two bending movable arms.

[0018] The beneficial effects of the present invention are as follows: the double-station molding machine is provided with a guide light axis between the upper frame and the lower frame, and the upper auxiliary molding chamber, the lower auxiliary molding chamber and the lower workbench are all uniformly guided and positioned on the guide light axis, thereby effectively avoiding the misalignment of products between the upper molding chamber and the lower molding chamber when closing the box, achieving high-precision positioning, and improving the product yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a structural diagram of the present invention;

[0021] Figure 2 A structural diagram of the present invention from another angle;

[0022] Figure 3 This is a combined structural diagram of the rotary support mechanism, upper auxiliary molding chamber, upper molding chamber, lower molding chamber, lower auxiliary molding chamber, lower workbench, first adjustment assembly and second adjustment assembly in the present invention;

[0023] Figure 4 This is a detailed structural diagram of the bending movable arm in the present invention;

[0024] Figure 5 A detailed structural diagram of the rotary support mechanism of the present invention;

[0025] Figure 6 This is a detailed structural diagram of the sand pushing assembly of the present invention;

[0026] In the figure, 1, upper rack;

[0027] 2. Lower the rack;

[0028] 3. Rotating support mechanism; 31. Rotating optical axis; 32. Bracket assembly; 321. Fixed support; 322. Upper rotating bracket; 323. Lower rotating bracket; 324. Locking structure; 33. Rotating drive assembly; 34. Upper rotating bearing assembly; 35. Lower rotating bearing assembly;

[0029] 4. Guide optical axis;

[0030] 51. Upper auxiliary molding chamber; 52. Upper molding chamber; 53. Lower molding chamber; 54. Lower auxiliary molding chamber; 55. Lower workbench; 56. First adjustment assembly; 57. Second adjustment assembly; 58. First hydraulic assembly;

[0031] 6. Sand shooting mechanism; 61. First sand shooting assembly; 62. Second sand shooting assembly; 621. Connecting column; 63. Gas tank;

[0032] 7. Desanding mechanism; 71. Desanding frame; 72. Connecting plate; 73. Second hydraulic assembly; 74. Desanding frame;

[0033] 8. Sand pushing mechanism; 81. Sand pushing plate; 82. Drive assembly; 83. Gear assembly; 84. Rack assembly; 85. Transition plate assembly;

[0034] 9. Bend the movable arm. DETAILED DESCRIPTION

[0035] To make the objectives, technical solutions, and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is apparent that the embodiments described are only a portion of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other implementations obtained by those of ordinary skill in the art without inventive effort are within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be understood that the terms "center", "lateral", "length", "width", "height", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "side" and the like indicate positions or location relationships based on the attached Figure 1The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0037] It should also be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention depending on the specific circumstances.

[0038] Reference Figures 1 to 6 The present invention mentions a double-station molding machine, comprising an upper frame 1, a lower frame 2, a rotating support mechanism 3, a guide optical axis 4, an upper auxiliary molding chamber 51, an upper molding chamber 52, a lower molding chamber 53, a lower auxiliary molding chamber 54 and a lower workbench 55;

[0039] The rotating support mechanism 3 is connected to the upper frame 1 and the lower frame 2 respectively, and the rotating support mechanism 3 separates the space between the upper frame 1 and the lower frame 2 to form a molding station and a sand removal station;

[0040] There are two guide light shafts 4, both of which are located on one side of the molding station and are symmetrically arranged. The two ends of the guide light shafts 4 are respectively connected to the upper frame 1 and the lower frame 2;

[0041] The upper auxiliary molding chamber 51, the lower auxiliary molding chamber 54, and the lower workbench 55 are movably connected to the two guide optical shafts 4 in sequence from top to bottom. The movable connection here is preferably a sliding connection. The guide optical shafts 4 preferably have a smooth outer surface to facilitate sliding of the structure connected thereto. It is worth noting that the guide optical shafts 4 only serve to guide the above-mentioned structure and do not serve as a limit in the direction of movement of the above-mentioned structure.

[0042] The upper auxiliary molding chamber 51 is connected to the upper frame 1 through the first adjusting component 56, and the upper frame 1 is used to limit the upper auxiliary molding chamber 51. The first adjusting component 56 can preferably be a cylinder structure, the cylinder seat is connected to the upper frame 1, and the piston rod is connected to the upper auxiliary molding chamber 51. Since the structure of the upper frame 1 itself remains fixed, the upper auxiliary molding chamber 51 can be kept relatively still when the first adjusting component 56 is not working. At the same time, the first adjusting component 56 can also fine-tune the position of the upper auxiliary molding chamber 51 to adapt to molds of different sizes, making the device universal. The number of first adjusting components 56 is preferably two, respectively connected to the two ends of the upper auxiliary molding chamber 51;

[0043] The lower auxiliary molding chamber 54 is connected to the lower workbench 55 via a second adjustment assembly 57. The movement of the lower workbench 55 can drive the lower auxiliary molding chamber 54 to move synchronously. The second adjustment assembly 57 is preferably a cylinder structure, with a cylinder seat connected to the lower auxiliary molding chamber 54 and a piston rod connected to the lower workbench 55.

[0044] The bottom of the lower workbench 55 is connected to the first hydraulic assembly 58, which is connected to the lower frame 2. The first hydraulic assembly 58 can support the lower workbench 55. After the external hydraulic system is started, it can drive the lower workbench 55 to move upward. When the second adjustment assembly 57 is not working, the movement of the lower workbench 55 can drive the lower auxiliary molding chamber 54 to move synchronously. At the same time, the second adjustment assembly 57 can also fine-tune the position of the lower auxiliary molding chamber 54 to adapt to molds of different sizes, making the device universal. The number of second adjustment assemblies 57 is preferably two, respectively connected to the two ends of the lower auxiliary molding chamber 54;

[0045] The two upper molding chambers 52 are placed on the rotating support mechanism 3 and are located on one side of the molding station and the other side of the desanding station respectively. The two lower molding chambers 53 are placed on the rotating support mechanism 3 and are located on one side of the molding station and the other side of the desanding station respectively. The rotating support mechanism 3 can limit the upper molding chamber 52 and the lower molding chamber 53 to the extreme position of downward movement in the vertical direction and can drive the upper molding chamber 52 and the lower molding chamber 53 to rotate.

[0046] From the height direction, on one side of the molding station, the upper auxiliary molding chamber 51, the upper molding chamber 52, the lower molding chamber 53, the lower auxiliary molding chamber 54 and the lower workbench 55 are arranged in order from top to bottom. The upper auxiliary molding chamber 51 can be closed with the upper molding chamber 52 by a positioning pin, and the lower auxiliary molding chamber 54 can be closed with the lower molding chamber 53 by a positioning pin.

[0047] On one side of the desanding station, the upper molding chamber 52 and the lower molding chamber 53 are arranged in sequence from top to bottom.

[0048] The working principle of the double-station molding machine is as follows: under the driving action of the first hydraulic assembly 58, the molding station side performs the closing operation. The first hydraulic assembly 58 drives the lower workbench 55 to move upward, driving the lower auxiliary molding chamber 54 to move upward synchronously. After the lower auxiliary molding chamber 54 is closed with the lower molding chamber 53, it drives the lower molding chamber 53 upward. After the lower molding chamber 53 is closed with the mold and the upper molding chamber 52, it drives the mold and the upper molding chamber 52 upward. After the upper molding chamber 52 is closed with the upper auxiliary molding chamber 51, the closing operation is completed.

[0049] Then the filling medium is given by the sand-shooting mechanism 6;

[0050] Then compaction is performed using the first hydraulic assembly 58;

[0051] Then, driven by the first hydraulic assembly 58, the box opening action is performed. The first hydraulic assembly 58 drives the lower workbench 55 to move downward, and drives the lower auxiliary molding chamber 54 to move downward synchronously. The lower molding chamber 53 is separated from the lower auxiliary molding chamber 54 and falls freely, and is supported by the rotating support mechanism 3. The upper molding chamber 52 is separated from the lower molding chamber 53 and falls freely, and is supported by the rotating support mechanism 3. The upper auxiliary molding chamber 51 is separated from the upper molding chamber 52 and remains relatively stationary. Under the support and rotation of the rotating support mechanism 3, the upper molding chamber 52 and the lower molding chamber 53 on the molding station side and the stripping station side are rotated and interchanged, and the manufactured sand mold is rotated to the stripping station, and the molding station continues to perform the next molding operation;

[0052] On one side of the desanding station, desanding is performed by the desanding mechanism 7, and the sand mold is transported to the subsequent production line or subsequent equipment by the sand pushing mechanism 8.

[0053] The double-station molding machine is provided with a guide light axis 4 between the upper frame 1 and the lower frame 2. The upper auxiliary molding chamber 51, the lower auxiliary molding chamber 54 and the lower workbench 55 are all guided and positioned on the guide light axis 4, thereby effectively avoiding the misalignment of the products between the upper molding chamber 52 and the lower molding chamber 53 when closing the box, achieving high-precision positioning and improving the product yield.

[0054] As an optional embodiment, the rotating supporting mechanism 3 includes a rotating optical axis 31, a bracket assembly 32 and a rotating drive assembly 33. The rotating optical axis 31 is vertically arranged and its two ends are movably connected to the upper frame 1 and the lower frame 2 respectively. The bracket assembly 32 is connected to the rotating optical axis 31 and can rotate synchronously with the rotating optical axis 31. The two upper molding chambers 52 and the two lower molding chambers 53 are placed on the bracket assembly 32 and are located on both sides of the bracket assembly 32. The upper molding chamber 52 on each side is located above the lower molding chamber 53. One end of the rotating optical axis 31 is connected to the rotating drive assembly 33, and the rotating drive assembly 33 can drive the rotating optical axis 31, the bracket assembly 32, the upper molding chamber 52 and the lower molding chamber 53. The molding chamber 52 and the lower molding chamber 53 rotate to replace the upper molding chamber 52 and the lower molding chamber 53 on the molding station and the sand removing station. By providing a rotating optical axis 31 that penetrates and is positioned from top to bottom, the rotating optical axis 31 and the bracket assembly 32 form a whole. An integrated rotating optical axis 31 is used between the upper frame 1 and the lower frame 2 to make the structure more stable and avoid gaps. The upper molding chamber 52 and the lower molding chamber 53 will not be misaligned due to gap problems when the box is closed. The rotating drive assembly 33 can use components such as rotating cylinders to realize the rotation of the rotating optical axis 31. The structure of the rotating drive assembly 33 itself is a relatively conventional existing technology, so it will not be further described.

[0055] As an optional embodiment, the bracket assembly 32 includes a fixed support 321, an upper rotating bracket 322, a lower rotating bracket 323 and a locking structure 324. The fixed support 321 is sleeved on the outside of the rotating optical axis 31. The upper rotating bracket 322 and the lower rotating bracket 323 are both sleeved on the outside of the rotating optical axis 31 and are respectively located above and below the fixed support 321. The rotating optical axis 31 is connected to a locking structure 324 at the top of the upper rotating bracket 322 and the bottom of the lower rotating bracket 323. The two locking structures 324 lock the fixed support 321, the upper rotating bracket 322, the lower rotating bracket 323 and the rotating optical axis. The optical axis 31 is locked and connected together, and the fixed support 321 can form a sufficient gap between the upper rotating bracket 322 and the lower rotating bracket 323. At the same time, when dealing with molds or sand molds of different specifications, the gap between the upper rotating bracket 322 and the lower rotating bracket 323 can be changed by replacing the fixed supports 321 of different heights. The upper molding chamber 52 is placed on the upper rotating bracket 322, and the lower molding chamber 53 is placed on the lower rotating bracket 323. The locking structure 324 can preferably be a combination of a locking nut and a gasket. The replacement of the fixed support 321 is achieved through a detachable connection, and at the same time has good locking strength.

[0056] As an optional embodiment, the rotating support mechanism 3 also includes an upper rotating bearing assembly 34 and a lower rotating bearing assembly 35. The top of the rotating optical axis 31 is movably connected to the upper frame 1 through the upper rotating bearing assembly 34, and the bottom of the rotating optical axis 31 is movably connected to the lower frame 2 through the lower rotating bearing assembly 35. The outer ring of the upper rotating bearing assembly 34 is preferably fixedly connected to the upper frame 1, and the inner ring of the upper rotating bearing assembly 34 is preferably fixedly connected to the rotating optical axis 31. The outer ring of the lower rotating bearing assembly 35 is preferably fixedly connected to the lower frame 2, and the inner ring of the lower rotating bearing assembly 35 is preferably fixedly connected to the rotating optical axis 31. The positioning and support of the rotating optical axis 31 are achieved by the upper rotating bearing assembly 34 and the lower rotating bearing assembly 35.

[0057] As an optional embodiment, it also includes a sand shooting mechanism 6, which includes a first sand shooting component 61, a second sand shooting component 62 and a gas tank 63. The first sand shooting component 61 and the gas tank 63 are connected to the upper frame 1, and the first sand shooting component 61 is connected to the upper molding chamber 52 and the gas tank 63 through pipelines. The second sand shooting component 62 is connected to the upper frame 1 and the lower frame 2 through a connecting column 621. The second sand shooting component 62 is connected to the lower molding chamber 53 and the external gas tank through pipelines. The first sand shooting component 61 can be connected to the gas tank 63. 3, the upper molding chamber 52 is sand-shot with the assistance of the second sand-shooting assembly 62, and the lower molding chamber 53 is sand-shot with the assistance of the external gas tank. In this embodiment, the first sand-shooting assembly 61 and the second sand-shooting assembly 62 are staggered, and the sand-shooting directions are perpendicular to each other, which is conducive to the rational use of space. The structures of the first sand-shooting assembly 61, the second sand-shooting assembly 62 and the gas tank 63 are relatively conventional existing technologies, so they are not further described. The external gas tank has the same structure as the gas tank 63 and is not shown in the drawings.

[0058] As an optional embodiment, it also includes a desanding mechanism 7, which includes a desanding frame 71, a connecting plate 72, a second hydraulic assembly 73 and a desanding frame 74. The desanding frame 71 is connected to the upper frame 1 and is located above the upper molding chamber 52 on one side of the desanding station. The connecting plate 72 is connected to the second hydraulic assembly 73 and is connected to the desanding frame 74. The second hydraulic assembly 73 is connected to the lower frame 2. When desanding is required, the second hydraulic assembly 73 can sequentially drive the connecting plate 72, the desanding frame 74, the lower molding chamber 52 on the side of the desanding station, and ... The chamber 53 and the upper molding chamber 52 on the side of the sand removal station move upward. When they move to the sand removal rack 71, the sand molds inside the upper molding chamber 52 and the lower molding chamber 53 can be compacted together and separated from the upper molding chamber 52 and the lower molding chamber 53 under the action of the sand removal rack 71, and fall onto the mold connecting plate 72. The mold connecting plate 72 then moves downward under the drive of the second hydraulic component 73. The upper molding chamber 52 and the lower molding chamber 53 are supported by the rotating supporting mechanism 3 in turn during the falling process. Finally, the sand mold follows the mold connecting plate 72 to fall to the initial position, completing the sand removal operation.

[0059] As an optional embodiment, it also includes a sand pushing mechanism 8, which includes a sand pushing plate 81, a driving assembly 82, a gear assembly 83, a rack assembly 84 and a transition plate assembly 85. The driving assembly 82 is a power source and can preferably be a combination structure of a motor and a reducer. The sand pushing plate 81 is connected to the front end of the driving assembly 82. The sand pushing plate 81 is preferably a vertically arranged flat plate structure. The sand pushing plate 81 can move synchronously with the driving assembly 82 and can push the sand mold to move after contacting the sand mold. The left and right sides of the driving assembly 82 are respectively driven by a gear assembly 83. Connection, each gear assembly 83 is movably connected to a rack assembly 84, and the connection here is preferably a meshing connection, so that the gear and the rack are meshed with each other, and the rack assembly 84 is respectively connected to the upper frame 1 and the lower frame 2 to form an effective fixation. The connecting plate 72 is located in front of the sand pushing plate 81 in the initial state, and the sand mold that needs to be pushed out after the sand removal operation is completed is placed on the connecting plate 72. The transition plate assembly 85 is connected to the lower frame 2 and is located in front of the connecting plate 72. The transition plate assembly 85 can prevent the connecting plate 72 from being insufficient in length and play a transition role;

[0060] The drive assembly 82 can drive the gear assembly 83 to rotate, and the rotation of the gear assembly 83 can drive the drive assembly 82 and the sand pushing plate 81 to move forward or backward relative to the rack assembly 84. When the sand pushing plate 81 advances to the connecting plate 72, the sand mold can be pushed out from the connecting plate 72 to the transition plate assembly 85, and then pushed out from the transition plate assembly 85 to the subsequent production line or subsequent equipment outside the device. Since the rack assembly 84 always remains stationary, it is only necessary to move the sand pushing plate 81 and the drive assembly 82 between the two rack assemblies 84 along the length direction of the rack assembly 84. The combined structure of the rack assembly 84 and the gear assembly 83 does not take up space, reducing the volume required for the device. At the same time, the rack assembly 84 and the drive assembly 82 do not need to extend outside the device, and do not need to be suspended under force, which reduces structural deformation and extends service life.

[0061] As an optional implementation, the upper auxiliary molding chamber 51, the lower auxiliary molding chamber 54 and the lower workbench 55 are all provided with two bending movable arms 9 and are movably connected to the two guide light axes 4 through the two bending movable arms 9. Since the bending movable arms 9 are provided and a connection is formed between the main body of the lower workbench 55 and the guide light axes 4 through the bending movable arms 9, the lower workbench 55 and the lower auxiliary molding chamber 54 are bow-shaped as a whole. The bending design avoids the rotation range of the rotating support mechanism 3, and at the same time avoids the rising space of the main body of the lower workbench 55 and the main body of the lower auxiliary molding chamber 54, which can effectively avoid collisions. At the same time, it can save the volume of the molding machine to the greatest extent and reduce the raw material cost of the molding machine.

[0062] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A double-station molding machine, characterized in that: The machine comprises an upper frame (1), a lower frame (2), a rotating support mechanism (3), a guide optical axis (4), an upper auxiliary molding chamber (51), an upper molding chamber (52), a lower molding chamber (53), a lower auxiliary molding chamber (54) and a lower workbench (55), wherein: The rotating support mechanism (3) is connected to the upper frame (1) and the lower frame (2) respectively, and the rotating support mechanism (3) separates the space between the upper frame (1) and the lower frame (2) to form a molding station and a desanding station; There are two guide light shafts (4), both of which are located on one side of the molding station and are symmetrically arranged, and the two ends of the guide light shafts (4) are respectively connected to the upper frame (1) and the lower frame (2); The upper auxiliary molding chamber (51), the lower auxiliary molding chamber (54) and the lower workbench (55) are movably connected to the two guide optical axes (4) in sequence from top to bottom. The upper auxiliary molding chamber (51) is connected to the upper frame (1) through a first adjustment component (56), and the lower auxiliary molding chamber (54) is connected to the lower workbench (55) through a second adjustment component (57). The bottom of the lower workbench (55) is connected to a first hydraulic component (58), and the first hydraulic component (58) is connected to the lower frame (2). The two upper molding chambers (52) are placed on the rotating support mechanism (3) and are respectively located on one side of the molding station and one side of the desanding station; the two lower molding chambers (53) are placed on the rotating support mechanism (3) and are respectively located on one side of the molding station and one side of the desanding station.

2. The double-station molding machine according to claim 1, characterized in that: The rotating support mechanism (3) comprises a rotating optical axis (31), a bracket assembly (32) and a rotating drive assembly (33); the rotating optical axis (31) is vertically arranged and its two ends are movably connected to the upper frame (1) and the lower frame (2) respectively; the bracket assembly (32) is connected to the rotating optical axis (31) and can rotate synchronously with the rotating optical axis (31); the two upper molding chambers (52) and the two lower molding chambers (53) are all placed on the bracket assembly (32); one end of the rotating optical axis (31) is connected to the rotating drive assembly (33); the rotating drive assembly (33) can drive the rotating optical axis (31), the bracket assembly (32), the upper molding chamber (52) and the lower molding chamber (53) to rotate so as to exchange the upper molding chamber (52) and the lower molding chamber (53) on the molding station and the sand removal station.

3. The double-station molding machine according to claim 1, characterized in that: The invention also includes a sand-shooting mechanism (6), wherein the sand-shooting mechanism (6) includes a first sand-shooting assembly (61), a second sand-shooting assembly (62) and a gas tank (63), wherein the first sand-shooting assembly (61) and the gas tank (63) are connected to the upper frame (1), the first sand-shooting assembly (61) is respectively connected to the upper molding chamber (52) and the gas tank (63) through pipelines, the second sand-shooting assembly (62) is connected to the upper frame (1) and the lower frame (2) through a connecting column (621), and the second sand-shooting assembly (62) is respectively connected to the lower molding chamber (53) and an external gas tank through pipelines.

4. The double-station molding machine according to claim 1, characterized in that: The invention also includes a desanding mechanism (7), wherein the desanding mechanism (7) includes a desanding frame (71), a connecting plate (72), a second hydraulic assembly (73) and a desanding frame (74); the desanding frame (71) is connected to the upper frame (1) and is located above the upper molding chamber (52) on the side of the desanding station; the connecting plate (72) is connected to the second hydraulic assembly (73) and is connected to the desanding frame (74); the second hydraulic assembly (73) is connected to the lower frame (2); and the second hydraulic assembly (73) can sequentially drive the connecting plate (72), the desanding frame (74), the lower molding chamber (53) on the side of the desanding station and the upper molding chamber (52) on the side of the desanding station to move upward.

5. The double-station molding machine according to claim 4, characterized in that: The invention also includes a sand pushing mechanism (8), which includes a sand pushing plate (81), a driving assembly (82), a gear assembly (83), a rack assembly (84) and a transition plate assembly (85). The sand pushing plate (81) is connected to the front end of the driving assembly (82), and the left and right sides of the driving assembly (82) are respectively connected to a gear assembly (83). Each gear assembly (83) is movably connected to a rack assembly (84). The rack assembly (84) is respectively connected to the upper frame (1) and the lower frame (2). The connecting plate (72) is located in front of the sand pushing plate (81) in the initial state. The transition plate assembly (85) is connected to the lower frame (2) and is located in front of the connecting plate (72).

6. The double-station molding machine according to claim 2, characterized in that: The bracket assembly (32) comprises a fixed support (321), an upper rotating bracket (322), a lower rotating bracket (323) and a locking structure (324); the fixed support (321) is sleeved on the outside of the rotating optical axis (31); the upper rotating bracket (322) and the lower rotating bracket (323) are both sleeved on the outside of the rotating optical axis (31) and are respectively located above and below the fixed support (321); the rotating optical axis (31) is located on the upper rotating bracket. The top of (322) and the bottom of the lower rotating bracket (323) are both connected to a locking structure (324), and the two locking structures (324) lock and connect the fixed support (321), the upper rotating bracket (322), the lower rotating bracket (323) and the rotating optical axis (31) together, and the upper molding chamber (52) is placed on the upper rotating bracket (322), and the lower molding chamber (53) is placed on the lower rotating bracket (323).

7. The double-station molding machine according to claim 2, characterized in that: The rotating support mechanism (3) further comprises an upper rotating bearing assembly (34) and a lower rotating bearing assembly (35); the top of the rotating optical axis (31) is movably connected to the upper frame (1) via the upper rotating bearing assembly (34); and the bottom of the rotating optical axis (31) is movably connected to the lower frame (2) via the lower rotating bearing assembly (35).

8. The double-station molding machine according to claim 1, characterized in that: The upper auxiliary molding chamber (51), the lower auxiliary molding chamber (54) and the lower workbench (55) are all provided with two bending movable arms (9) and are movably connected to the two guide light axes (4) through the two bending movable arms (9).

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