Double-side sand-shooting core shooter

Abstract

The utility model provides a bilateral sand-shooting core shooter which comprises a rack, a bottom plate and a top plate are arranged in the middle of the rack, the two ends of a guide rod are connected with the bottom plate and the top plate respectively, a lower mold assembly is installed on the top face of the bottom plate, a jacking assembly is arranged at the bottom of the lower mold assembly and can jack up a sand mold to be separated from the lower mold assembly, and a telescopic rod is arranged in the center of the top plate in a penetrating mode. The top of the telescopic rod is connected with the output end of the telescopic air cylinder, the bottom of the telescopic rod is connected with the upper mold assembly, the upper mold assembly corresponds to the lower mold assembly, the top of the upper mold assembly is provided with the falling assembly, the falling assembly can eject a sand mold to be separated from the upper mold assembly, and core setting of the sand mold from the mold is facilitated through the jacking assembly and the falling assembly. The heating assemblies are inserted into the upper mold assembly and the lower mold assembly at intervals, the heating assemblies can evenly heat the upper mold assembly and the lower mold assembly, and the situation that the quality of a sand mold is affected due to temperature difference of molds is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of core shooting machines, in particular to a double-side sand shooting core shooting machine. Background Art

[0002] A core shooting machine is a device widely used in the casting industry. The core shooting machine is a type of shooting pressure molding machine. The shooting pressure molding machine uses compressed air to evenly shoot molding sand into the sand box for pre-compaction, and then applies pressure for compaction. Commonly used ones are vertical parting boxless shooting pressure molding machines and horizontal parting box-removing shooting pressure molding machines. The vertical parting boxless shooting pressure molding machine does not use a sand box for molding. The molding sand is directly shot into the molding chamber with a template. The size accuracy of the sand mold made is high. There are cavities on both sides of the sand box, and the productivity is high, but it is difficult to place cores, and strict requirements are imposed on the quality of the molding sand. The horizontal parting box-removing shooting pressure molding machine uses a sand box for molding. After the sand mold is made, the mold is closed and the box is removed. It is convenient to place cores and the productivity is high.

[0003] Patent document CN217223509U discloses a double sand shooting automatic core shooting machine, which includes an upper body, a lower body, a mold opening and closing cylinder, a moving template, a static template, a fixed guide rod, an air storage tank, a sand shooting mechanism and a slide plate adjusting mechanism. The sand shooting mechanism includes a sand shooting hopper. A jetting device is arranged on the sand shooting hopper. A jetting device is arranged at the bottom of the sand shooting hopper. One end of the jetting device is provided with two jet outlets arranged side by side. A transverse driving cylinder is arranged below the sand shooting hopper and the jetting device. A slide plate adjusting mechanism is arranged at the bottom of the transverse driving cylinder. The slide plate adjusting mechanism includes a top plate, a mounting plate, a horizontal guiding component, a vertical guiding component and a manual adjusting component. The power input end of the manual adjusting component is located outside the lower body. This device is reasonable in design, simple in structure, has a high sand shooting effect and is beneficial to improving the quality of the sand shell and the workpiece, and is suitable for large-scale promotion.

[0004] In the above solution, the accuracy of the core shooting machine is relatively high, but it is relatively difficult to place cores, especially for molds with complex shapes, it is more difficult to place cores. At the same time, the heating device is not described for the moving and static templates, and there is room for optimization. Therefore, it is necessary to provide a double-side sand shooting core shooting machine to solve the deficiencies of the prior art. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the deficiencies existing in the prior art and provide a double-side sand shooting core shooting machine.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A double - side sand - shooting core - making machine includes a frame. In the middle of the frame, there is a bottom plate and a top plate. Both ends of the guide rod are connected to the bottom plate and the top plate respectively. The bottom surface of the bottom plate is equipped with a lower die assembly. At the bottom of the lower die assembly, there is a lifting assembly which can lift the sand mold and separate it from the lower die assembly. The center of the top plate is penetrated by a telescopic rod. The top of the telescopic rod is connected to the output end of a telescopic cylinder, and the bottom of the telescopic rod is connected to the upper die assembly. The upper die assembly corresponds to the lower die assembly. At the top of the upper die assembly, there is a falling - down assembly which can push down the sand mold and separate it from the upper die assembly. Through the lifting assembly and the falling - down assembly, it is convenient to insert the core into the mold from the die. Both the upper die assembly and the lower die assembly are interspersed with heating assemblies at intervals, and the heating assemblies can uniformly heat the upper die assembly and the lower die assembly.

[0008] The present utility model is further configured as follows: The lower die assembly includes:

[0009] A fixing frame which is installed on the top surface of the bottom plate, and a circular hole is opened in the middle of the fixing frame;

[0010] A fixing block which is installed on the fixing frame;

[0011] A first fixing column, the bottom surface of which is connected to the top surface of the fixing block;

[0012] A lower die base, the bottom surface of which is connected to the top surface of the fixing column.

[0013] The present utility model is further configured as follows: The lifting assembly includes:

[0014] A lifting cylinder which is installed inside the frame;

[0015] A lifting plate which is connected to the output end of the lifting cylinder;

[0016] A first inserting - column plate, the four corners of which all pass through the first fixing column. The top surface of the first inserting - column plate is arranged with inserting columns in an array, and the first inserting - column plate is located above the lifting plate.

[0017] The present utility model is further configured as follows: The upper die assembly includes:

[0018] A movable plate, the middle of which is bolt - connected to the bottom of the telescopic rod, and the four corners of the movable plate are penetrated by the guide rod;

[0019] A second fixing column, the top surface of which is connected to the bottom surface of the movable plate;

[0020] An upper die base, the top surface of which is connected to the bottom surface of the second fixing column;

[0021] The present utility model is further configured as follows: The falling - down assembly includes:

[0022] A second inserting - column plate, the four corners of which all pass through the second fixing column. The bottom surface of the second inserting - column plate is arranged with inserting columns in an array, and the second inserting - column plate is located between the upper die base and the movable plate.

[0023] The utility model is further configured such that the heating assembly includes:

[0024] A heating pipe which is spaced and inserted into the upper die assembly and the lower die assembly, and the heating pipe is electrically connected to the control system at the top of the frame.

[0025] The utility model is further configured such that sand injection cylinders are symmetrically arranged on both sides of the frame. A sand accommodation space is provided in the sand injection cylinder. The top of the sand injection cylinder is communicated with a sand pipe and an air injection pipe. A sand injection hopper is connected to the inner side of the sand injection cylinder, and the output end of the sand injection hopper faces the upper die assembly and the lower die assembly.

[0026] The utility model is further configured such that the bottom surface of the sand injection cylinder is fixedly connected to the moving plate, the bottom surface of the sand injection cylinder is slidably connected to the fixed plate, the outer side of the moving block is connected to the output end of the horizontal air cylinder, the horizontal air cylinder is installed on the fixed seat, and the fixed plate is fixedly connected to the fixed seat.

[0027] In summary, the utility model has the following beneficial effects:

[0028] 1. The utility model jacks up the sand mold through the jacking assembly to separate it from the lower die assembly, and jacks down the sand mold through the falling assembly to separate it from the upper die assembly, which is convenient for core setting of the sand mold in the mold and avoids adhesion between the sand mold and the mold, thereby preventing damage to the sand mold during taking out.

[0029] 2. The utility model adopts a bilateral sand injection method, which can make the sand injection more full and compact, and the quality of the casting products produced is higher.

[0030] 3. The upper die base and the lower die base of the utility model are provided with heating pipes at intervals, and the heating is more uniform, avoiding the influence of temperature difference in the mold on the quality of the sand mold. Description of the Drawings

[0031] Figure 1 is a schematic structural diagram of the utility model.

[0032] Figure 2 is the utility model Figure 1 An enlarged view of A in.

[0033] Figure 3 is a top view of the fixed frame and the jacking plate of the utility model.

[0034] In the figure, 1. frame, 2. bottom plate, 3. top plate, 4. guide rod, 5. lower die assembly, 501. fixing frame, 5011. round hole, 502. fixing block, 503. first fixing column, 504. lower die base, 6. lifting assembly, 601. lifting cylinder, 602. lifting plate, 603. first inserting column plate, 6031. inserting column, 7. telescopic rod, 8. upper die assembly, 801. movable plate, 802. second fixing column, 803. upper die base, 9. dropping assembly, 10. heating assembly, 11. control system, 12. sand shooting cylinder, 13. molding sand pipe, 14. air jet pipe, 15. sand shooting hopper, 16. moving plate, 17. fixing plate, 18. horizontal cylinder, 19. fixing seat. Specific embodiments

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. The components of the embodiments of the present utility model usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0036] Embodiment 1:

[0037] In this embodiment, as Figures 1-3 shown, a double-sided sand shooting core shooter proposed by the present utility model includes a frame 1. A bottom plate 2 and a top plate 3 are provided in the middle of the frame. Both ends of the guide rod 4 are connected to the bottom plate and the top plate respectively. The top surface of the bottom plate is provided with a lower die assembly 5. A lifting assembly 6 is provided at the bottom of the lower die assembly. The lifting assembly can lift the sand mold to separate it from the lower die assembly. A telescopic rod 7 passes through the center of the top plate. The top of the telescopic rod is connected to the output end of the telescopic cylinder, which is not shown in the figure. The bottom of the telescopic rod is connected to an upper die assembly 8. The upper die assembly corresponds to the lower die assembly. A dropping assembly 9 is provided at the top of the upper die assembly. The dropping assembly can drop the sand mold to separate it from the upper die assembly. The lifting assembly and the dropping assembly facilitate the core setting of the sand mold from the mold. Heating assemblies 10 are inserted at intervals in both the upper die assembly and the lower die assembly. The heating assemblies can uniformly heat the upper die assembly and the lower die assembly.

[0038] In this embodiment, it is further set that the lower die assembly includes a fixing frame 501, a fixing block 502, a first fixing column 503 and a lower die base 504. The fixing frame is installed on the top surface of the bottom plate. A circular hole 5011 is formed in the middle of the fixing frame, and the circular hole allows the lifting assembly to pass through; the fixing block is installed on the fixing frame; the bottom surface of the first fixing column is connected to the top surface of the fixing block; the bottom surface of the lower die base is connected to the top surface of the fixing column.

[0039] In this embodiment, it is further set that the lifting assembly includes a lifting cylinder 601, a lifting plate 602 and a first plug plate 603. The lifting cylinder is installed in the machine frame; the lifting plate is connected to the output end of the lifting cylinder; the four corners of the first plug plate pass through the first fixing column, and plug posts 6031 are arranged in an array on the top surface of the first plug plate. The first plug plate is located above the lifting plate, and the plug posts face the bottom of the lower die base. The plug posts can pass through the lower die base to lift the sand mold and separate it from the lower die base.

[0040] In this embodiment, it is further set that the upper die assembly includes a movable plate 801, a second fixing column 802 and an upper die base 803. The middle of the movable plate is bolted to the bottom of the telescopic rod, and the four corners of the movable plate are passed through by the guide rods; the top surface of the second fixing column is connected to the bottom surface of the movable plate; the top surface of the upper die base is connected to the bottom surface of the second fixing column;

[0041] In this embodiment, it is further set that the falling assembly includes a second plug plate. The four corners of the second plug plate pass through the second fixing column, and plug posts are arranged in an array on the bottom surface of the second plug plate. The second plug plate is located between the upper die base and the movable plate, and the plug posts face the top of the upper die base. The plug posts can pass through the upper die base to push the sand mold down and separate it from the upper die base.

[0042] In this embodiment, it is further set that the heating assembly includes heating tubes. The heating tubes are alternately inserted into the upper die assembly and the lower die assembly at intervals. The heating tubes are electrically connected to the control system 11 at the top of the machine frame, and the temperature of the heating tubes is regulated by the control system. This technology is prior art and will not be elaborated here.

[0043] In this embodiment, it is further set that sand injection barrels 12 are symmetrically arranged on both sides of the machine frame. A sand accommodation space is provided inside the sand injection barrels. The top of the sand injection barrels is connected to a sand pipe 13 and an air injection pipe 14. The sand pipe is connected to the sand supply assembly, and the air injection pipe is connected to the air source. A sand injection hopper 15 is connected to the inner side of the sand injection barrel. The output end of the sand injection hopper faces the upper die assembly and the lower die assembly. The air injection pipe outputs the molding sand through the output end of the sand injection hopper into the mold formed by the pressing of the upper die base and the lower die base. This technology is prior art.

[0044] In this embodiment, it is further set that the bottom surface of the sand shooting cylinder is fixedly connected to the moving plate 16, and the bottom surface of the sand shooting cylinder is slidably connected to the fixed plate 17. The outer side of the moving block is connected to the output end of the horizontal air cylinder 18. The horizontal air cylinder is installed on the fixed seat 19. The fixed plate is fixedly connected to the fixed seat. The moving plate and the fixed plate can support the sand shooting cylinder to maintain the stability of its horizontal movement. If the double-sided sand shooting core shooter is used for one type of sand mold, only the horizontal movement component is required. If the double-sided sand shooting core shooter is used for multiple sand molds with different heights, a vertical movement component also needs to be set. The vertical movement component is used to lift and lower the sand shooting cylinder and the sand shooting hopper to ensure that the output end of the sand shooting hopper can abut against the upper mold base and the lower mold base.

[0045] Embodiment 2:

[0046] In this embodiment, as Figures 1-3 shown, the sand mold is lifted by the lifting component to be separated from the lower mold component, and the sand mold is dropped by the dropping component to be separated from the upper mold component, which is convenient for core setting of the sand mold in the mold. Taking one type of sand mold as an example, the front and back sides of the sand mold can be processed simultaneously by the upper mold and the lower mold. After the sand mold is taken out, the central block at the top of the front sand mold is knocked out, and a square filter screen is adhered with adhesive liquid. Then the front and back sides are closed and pressed together, and the sand shooting connection edge of the sand mold is knocked out to form a finished product, which is then used for producing casting products.

[0047] The working principle of this double-sided sand shooting core shooter is as follows: the molding sand is input into the sand shooting cylinder by the molding sand supply component through the molding sand pipe. The control system regulates the temperature of the heating pipe to an appropriate temperature. The upper mold base is pressed against the lower mold base under the control of the telescopic air cylinder. The sand shooting cylinder and the sand shooting hopper move under the control of the horizontal air cylinder so that the sand shooting hopper abuts against the upper mold base and the lower mold base. The molding sand is output from the output end of the sand shooting hopper to the mold formed by the pressing of the upper mold base and the lower mold base through the air injection pipe. After a certain period of time, the upper mold base is separated from the lower mold base under the control of the telescopic air cylinder. The second plug plate knocks down the sand mold under the action of gravity to separate it from the upper mold base. The lifting air cylinder drives the lifting plate to abut against the plug plate and lift it upward to lift the sand mold and separate it from the lower mold base, and then the sand mold is taken out to complete the core setting of the sand mold.

[0048] In the description of the present utility model, it should be noted that when terms indicating orientation or positional relationship such as "upper", "lower", "inner", "outer", "left", "right", etc. appear, they should be understood as based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, when terms such as "first", "second", etc. appear, they are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance. In the description of the present utility model, it should also be noted that unless otherwise clearly specified and limited, terms such as "installation", "setting", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

Claims

1. A double-sided sand shooting core shooter, comprising a frame, characterized in that, In the middle of the frame, there are a bottom plate and a top plate. Both ends of the guiding rod are connected to the bottom plate and the top plate respectively. The bottom surface of the bottom plate is equipped with a lower die assembly. At the bottom of the lower die assembly, there is a jacking assembly which can jack up the sand mold to separate it from the lower die assembly. The center of the top plate is penetrated by a telescopic rod. The top of the telescopic rod is connected to the output end of the telescopic cylinder, and the bottom of the telescopic rod is connected to the upper die assembly. The upper die assembly corresponds to the lower die assembly. At the top of the upper die assembly, there is a dropping assembly which can drop the sand mold to separate it from the upper die assembly. Through the jacking assembly and the dropping assembly, it is convenient to core the sand mold from the mold. Both the upper die assembly and the lower die assembly are interspersed with heating assemblies at intervals, and the heating assemblies can uniformly heat the upper die assembly and the lower die assembly.

2. The bilateral sand shooting core shooter according to claim 1, wherein The lower die assembly includes: A fixing frame which is installed on the top surface of the bottom plate, and a round hole is opened in the middle of the fixing frame; A fixing block which is installed on the fixing frame; A first fixing column whose bottom surface is connected to the top surface of the fixing block; A lower die base whose bottom surface is connected to the top surface of the fixing column.

3. The bilateral sand injection core shooter according to claim 2, characterized in that, The jacking assembly includes: A jacking cylinder which is installed inside the frame; A jacking plate which is connected to the output end of the jacking cylinder; A first plug column plate whose four corners all pass through the first fixing column. Plug columns are arranged in an array on the top surface of the first plug column plate, and the first plug column plate is located above the jacking plate.

4. A double-side sand shooting core shooter according to claim 1, characterized in that, The upper die assembly includes: A movable plate whose middle part is bolted to the bottom of the telescopic rod, and the four corners of the movable plate are penetrated by the guiding rod; A second fixing column whose top surface is connected to the bottom surface of the movable plate; An upper die base whose top surface is connected to the bottom surface of the second fixing column.

5. The bilateral sand shooting core shooter according to claim 4, characterized in that, The dropping assembly includes: A second plug column plate whose four corners all pass through the second fixing column. Plug columns are arranged in an array on the bottom surface of the second plug column plate, and the second plug column plate is located between the upper die base and the movable plate.

6. A double-side sand shooting core shooter according to claim 1, characterized in that, The heating assembly includes: Heating tubes which are interspersed in the upper die assembly and the lower die assembly at intervals. The heating tubes are electrically connected to the control system at the top of the frame.

7. A double-sided sand shooting core shooter according to claim 1, characterized in that, Sand injection cylinders are symmetrically arranged on both sides of the frame. There is a sand mold accommodation space inside the sand injection cylinders. The top of the sand injection cylinders is connected to a sand pipe and an air injection pipe. The sand injection hopper is connected to the inner side of the sand injection cylinders, and the output end of the sand injection hopper faces the upper die assembly and the lower die assembly.

8. A double-sided sand shooting core shooter according to claim 7, characterized in that, The bottom surface of the sand injection cylinder is fixedly connected to a moving plate. The bottom surface of the sand injection cylinder is slidably connected to a fixing plate. The outside of the moving block is connected to the output end of a horizontal cylinder. The horizontal cylinder is installed on a fixing seat, and the fixing plate is fixedly connected to the fixing seat.

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