Automatic discharging device of shot blasting machine

Abstract

The utility model discloses an automatic discharging device of a shot blasting machine, which comprises a base, support frames and a discharging hopper, the top end of the base is provided with a lifting mechanism, the top end of the lifting mechanism is provided with a connecting plate, the two sides of the top end of the connecting plate are connected with the support frames, the top end of the connecting plate is connected with the discharging hopper, and the outer side of the discharging hopper is provided with a protective structure. The stepping motor is started to drive the first gear to rotate in the forward direction or the reverse direction, then the stepping motor drives the screw to rotate in the forward direction or the reverse direction through tooth meshing, and then the movable frame is meshed with threads on the rotating screw and gradually slides upwards or downwards along the surface of the guide rod. And meanwhile, the connecting plate can drive the discharging hopper on the supporting frame to ascend and descend so as to adjust the height, so that the lifting adjusting function of the device is achieved, the discharging hopper can be in butt joint with feeding ports of different heights for feeding and discharging, the usable range of the device is widened, and the functionality of the device is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of shot blasting machines, in particular to an automatic unloading device for shot blasting machines. Background Art

[0002] Shot blasting machine refers to casting equipment that uses high-speed projectiles thrown by the shot blaster to clean or strengthen the surface of castings. The shot blasting machine can simultaneously remove sand, core and clean the castings. It is also called a sandblasting machine or a sandblasting machine. In the process of using the shot blasting machine, in order to reduce the workload of manual unloading by the staff, it is very necessary to use an automatic unloading device to transport the castings to the feed port and pour them into the shot blasting machine for unloading.

[0003] The Chinese patent authorization announcement number CN207495304U, announcement date June 15, 2018, discloses an automatic loading and unloading device for a shot blasting unit, including a shot blasting unit 1, a unloading device 2, a transmission device, a station guide rail 3 and a unloading conveyor belt 7. The unloading conveyor belt 7 is arranged in front of the shot blasting unit 1 composed of at least one shot blasting machine. The unloading device 2 includes a unloading hopper 21, a pneumatic device for turning over materials 22, a unloading seat 23, a unloading guide rail 24 and a feeding pneumatic device 26. The unloading guide rail 24 is slidably mounted on the station guide rail 3, and the unloading seat 23 slides on the unloading guide rail 24. The transmission device includes a motor 5, a transmission chain 4, a driving wheel 6 and a driven wheel 61, and the transmission chain 4 is connected to the unloading guide rail 24. This automatic loading and unloading device for a shot blasting unit is compact in structure. The unloading device can realize automatic loading and unloading of multiple shot blasting machines, and the loading and unloading is accurate, thereby improving production efficiency.

[0004] The above technical solution has the following defects: the device is not easy to lift when in use. The height of the existing automatic unloading device of the shot blasting machine is generally fixed, and it cannot connect to the feeding port of the shot blasting machine at different heights. This will reduce the height range in which the device can be used. It can only be used for the shot blasting machine of fixed height, thereby reducing the use effect of the device. Utility Model Content

[0005] The purpose of the utility model is to provide an automatic unloading device for a shot blasting machine to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: an automatic unloading device of a shot blasting machine, comprising a base, a support frame and a unloading hopper, a lifting mechanism is arranged at the top of the base, and a connecting plate is arranged at the top of the lifting mechanism, both sides of the top of the connecting plate are connected to the support frame, the top of the connecting plate is connected to the second connecting seat, and the top of the second connecting seat is hinged with a hydraulic push rod, the top of the hydraulic push rod is hinged with the first connecting seat, and one side of the first connecting seat is connected to a connecting block, a connecting rod is fixed inside the connecting block, the top of the connecting block is connected to the unloading hopper, and a protective structure is arranged on the outside of the unloading hopper, the lifting mechanism comprises a guide rod, a movable frame, a shell, a screw, a stepping motor, a first gear and a second gear, the shell is connected to the top of the base, and a movable frame is inserted into the inside of the shell.

[0007] Preferably, a screw is connected to the internal thread of one side of the moving frame, a guide rod is inserted into the interior of the other side of the moving frame, the bottom end of the screw is connected to a second gear, and one side of the second gear is meshed with the first gear, and the top of the first gear is connected to a stepper motor. The first gear is driven to rotate forward or reverse by starting the stepper motor, and then the stepper motor meshes with the rotating first gear teeth to drive the screw to rotate synchronously, and then the moving frame is meshed with the rotating screw thread and gradually slides up or down along the surface of the guide rod to rise and fall, and at the same time, the connecting plate can drive the discharge hopper on the support frame to rise and fall to adjust the height as the moving frame moves up or down.

[0008] Preferably, the housing of the stepper motor is connected to the outer shell by bolts, and the rotating shaft of the stepper motor is connected to the first gear.

[0009] Preferably, the movable frame is connected to the connecting plate by bolts, and the top end of the screw rod is connected to the bearing in the housing.

[0010] Preferably, both ends of the guide rod are connected to the inner wall of the shell, and both ends of the connecting rod are hinged to the support frame.

[0011] Preferably, the protective structure includes a rubber pad, a base plate, a magnet block, an iron block, an extension plate and a positioning column. The positioning columns are connected to the bottom end of the discharge hopper. The outer side of the positioning column is provided with an extension plate, and one side of the extension plate is connected to the base plate. The outer side of the base plate is provided with a rubber pad. The inside of the base plate is inlaid with magnet blocks, and the inside of the bottom end of the discharge hopper is inlaid with iron blocks. The extension plate sleeve is driven by moving the rubber pad to quickly position and align on the positioning column, and then the multiple groups of magnet blocks and multiple groups of iron blocks in the base plate are sucked together to fix the base plate wrapped with the rubber pad. Then, the elastic rubber pad on the base plate can buffer the collision force caused by the bottom of the discharge hopper that flips down to discharge directly to the edge of the feed port, thereby preventing the discharge hopper or the feed port from being damaged by repeated collisions for a long time.

[0012] Preferably, the iron block is in contact with the magnet block, and the outer surface of the discharge hopper is wrapped with a rubber pad.

[0013] Compared with the prior art, the beneficial effects of the utility model are: the automatic unloading device of the shot blasting machine has a reasonable structure and has the following advantages:

[0014] (1) The stepper motor is started to drive the first gear to rotate forward or reversely, and then the stepper motor drives the screw to rotate forward or reversely through tooth meshing, and then the moving frame is meshed with the thread on the rotating screw to gradually slide up or down along the surface of the guide rod, and at the same time, the connecting plate can drive the discharge hopper on the support frame to rise and fall to adjust the height, thereby realizing the lifting and adjusting function of the device, making it convenient for the discharge hopper to connect to the feed ports at different heights for upper unloading, increasing the usable range of the device and enhancing the functionality of the device;

[0015] (2) The extension plate sleeve is positioned on the positioning column by moving the rubber pad, and then the magnetic block in the base plate is sucked and fixed with the iron block. Then, the elastic rubber pad can buffer the collision force caused by the bottom of the discharge hopper falling directly to the edge of the feed port during unloading, thereby preventing the discharge hopper or the feed port from being damaged by repeated collisions for a long time. In this way, the enhanced protection function of the device is realized, the safety of the discharge hopper is improved, damage is prevented, and the safety of the device is enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0017] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 3 This is a schematic diagram of the front cross-sectional structure of the lifting structure of the utility model;

[0019] Figure 4 It is a schematic diagram of the three-dimensional cross-sectional structure of the protective structure of the utility model.

[0020] Explanation of the reference numerals in the figure: 1. base; 2. lifting mechanism; 201. guide rod; 202. moving frame; 203. housing; 204. screw; 205. stepping motor; 206. first gear; 207. second gear; 3. connecting plate; 4. supporting frame; 5. unloading hopper; 6. first connecting seat; 7. protective structure; 701. rubber pad; 702. base plate; 703. magnet block; 704. iron block; 705. extension plate; 706. positioning column; 8. connecting block; 9. connecting rod; 10. hydraulic push rod; 11. second connecting seat. DETAILED DESCRIPTION

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0022] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0023] The utility model embodiment provides an automatic unloading device for a shot blasting machine, such as Figure 1-4 As shown, the automatic unloading device of the shot blasting machine includes a base 1, a support frame 4 and a discharge hopper 5. A lifting mechanism 2 is arranged at the top of the base 1, and a connecting plate 3 is arranged at the top of the lifting mechanism 2. Both sides of the top of the connecting plate 3 are connected to the supporting frame 4, the top of the connecting plate 3 is connected to the second connecting seat 11, and the top of the second connecting seat 11 is hinged with a hydraulic push rod 10, the top of the hydraulic push rod 10 is hinged with a first connecting seat 6, and one side of the first connecting seat 6 is connected to a connecting block 8, a connecting rod 9 is fixed inside the connecting block 8, the top of the connecting block 8 is connected to the discharge hopper 5, and a protective structure 7 is arranged on the outside of the discharge hopper 5, the lifting mechanism 2 includes a guide rod 201, a moving frame 202, a shell 203, a screw 204, a stepping motor 205, a first gear 206 and a second gear 207, the shell 203 is connected to the top of the base 1, and the moving frame 202 is inserted into the shell 203.

[0024] The working principle of the automatic unloading device of the shot blasting machine is: the device is placed at a designated position near the shot blasting machine through the base 1 for support and fixation, and an external power supply is connected for power supply. Through a trial operation, it is determined that the unloading hopper 5 can just enter the feeding port of the shot blasting machine after being turned over, and then the unloading hopper 5 is turned over to a vertical state and stopped as the piston of the hydraulic push rod 10 retracts, and then the castings to be unloaded are introduced into the unloading hopper 5, and the piston of the hydraulic push rod 10 is started to extend and push the first connecting seat 6 to drive the connecting block 8 to gradually turn upward around the support frame 4 through the connecting rod 9. At the same time, the unloading hopper 5 is also turned upward synchronously with the connecting block 8 and gradually tilted to extend into the feeding port of the shot blasting machine and stop, so as to facilitate the pouring of the castings contained in the unloading hopper 5 into the shot blasting machine, thereby achieving the effect of automatic unloading.

[0025] It should be noted that, since the height of the existing automatic unloading device of the shot blasting machine is generally fixed, it can only be connected to a shot blasting machine with a fixed-height feed port. Therefore, in order to solve the problem that the existing automatic unloading device of the shot blasting machine cannot be raised and lowered, this solution adds a lifting mechanism 2 to facilitate the flexible adjustment of the height of the unloading hopper 5, so as to facilitate the connection with feed ports of different heights.

[0026] In a further embodiment, Figure 1 , Figure 2 and Figure 3 As shown, a screw rod 204 is connected to the internal thread of one side of the movable frame 202, a guide rod 201 is inserted into the interior of the other side of the movable frame 202, a second gear 207 is connected to the bottom end of the screw rod 204, and a first gear 206 is meshed with one side of the second gear 207, a stepper motor 205 is connected to the top end of the first gear 206, a shell of the stepper motor 205 is connected to the outer shell 203 by bolts, a rotating shaft of the stepper motor 205 is connected to the first gear 206, the movable frame 202 is connected to the connecting plate 3 by bolts, the top end of the screw rod 204 is connected to the bearing in the outer shell 203, both ends of the guide rod 201 are connected to the inner wall of the outer shell 203, and both ends of the connecting rod 9 are hinged to the support frame 4.

[0027] In this embodiment, when it is necessary to enable the discharge hopper 5 to dock with a shot blasting machine with feed ports at different heights, the stepper motor 205 is started to drive the first gear 206 to rotate forward or reversely, and then the stepper motor 205 is engaged with the rotating first gear 206 to drive the screw 204 to rotate forward or reversely, and then the movable frame 202 is threadedly engaged with the rotating screw 204 and gradually slides up or down along the surface of the guide rod 201 to rise and fall. At the same time, the connecting plate 3 can drive the discharge hopper 5 on the support frame 4 to rise and fall to adjust the height as the movable frame 202 moves up or down, so that the discharge hopper 5 can dock with feed ports at different heights for upper and lower unloading.

[0028] In a further embodiment, Figure 1 , Figure 2 and Figure 4 As shown, the protective structure 7 includes a rubber pad 701, a base plate 702, a magnet block 703, an iron block 704, an extension plate 705 and a positioning column 706. The positioning column 706 is connected to the bottom end of the discharge hopper 5. The outer side of the positioning column 706 is sleeved with an extension plate 705, and one side of the extension plate 705 is connected to the base plate 702. The outer side of the base plate 702 is sleeved with a rubber pad 701. The inside of the base plate 702 is inlaid with magnet blocks 703. The inside of the bottom of the discharge hopper 5 is inlaid with iron blocks 704. The iron blocks 704 are in contact with the magnet blocks 703. The outer surface of the discharge hopper 5 is wrapped with a rubber pad 701.

[0029] In this embodiment, when the discharge hopper 5 enters the feed port of the shot blasting machine for discharge, the extension plate 705 is driven by moving the rubber pad 701 to be sleeved on the positioning column 706 for rapid positioning and alignment, and then the multiple groups of magnetic blocks 703 in the base plate 702 are aligned one by one with the multiple groups of iron blocks 704 in the discharge hopper 5, and the base plate 702 wrapped with the rubber pad 701 can be fixed by suction, and then the end of the discharge hopper 5 inserted into the feed port is wrapped by the elastic rubber pad 701 on the base plate 702, so that it can buffer the collision force caused by the bottom of the discharge hopper 5 that is turned over and falls to discharge directly falling to the edge of the feed port, thereby preventing the discharge hopper 5 or the feed port from being damaged by repeated collisions for a long time.

[0030] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the described action sequence, because according to the utility model, some steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the utility model.

[0031] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely schematic, such as the division of the above-mentioned units. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.

[0032] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0033] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. Automatic unloading device of shot blasting machine, characterized by: It comprises a base (1), a support frame (4) and a discharge hopper (5); a lifting mechanism (2) is arranged at the top of the base (1), and a connecting plate (3) is arranged at the top of the lifting mechanism (2); Both sides of the top of the connecting plate (3) are connected to support frames (4), the top of the connecting plate (3) is connected to a second connecting seat (11), and the top of the second connecting seat (11) is hinged with a hydraulic push rod (10); The top end of the hydraulic push rod (10) is hingedly connected to a first connecting seat (6), and one side of the first connecting seat (6) is connected to a connecting block (8); A connecting rod (9) is fixed inside the connecting block (8), a discharge hopper (5) is connected to the top of the connecting block (8), and a protective structure (7) is arranged on the outside of the discharge hopper (5); The lifting mechanism (2) comprises a guide rod (201), a moving frame (202), a housing (203), a screw rod (204), a stepping motor (205), a first gear (206) and a second gear (207); The shell (203) is connected to the top of the base (1), and a movable frame (202) is inserted into the interior of the shell (203).

2. The automatic unloading device for a shot blasting machine according to claim 1, characterized in that: A screw rod (204) is connected to the internal thread of one side of the moving frame (202), a guide rod (201) is inserted into the interior of the other side of the moving frame (202), the bottom end of the screw rod (204) is connected to a second gear (207), and one side of the second gear (207) is meshed with a first gear (206), and the top end of the first gear (206) is connected to a stepping motor (205).

3. The automatic unloading device for a shot blasting machine according to claim 1, characterized in that: The housing of the stepper motor (205) is connected to the outer shell (203) via bolts, and the rotating shaft of the stepper motor (205) is connected to the first gear (206).

4. The automatic unloading device for a shot blasting machine according to claim 1, characterized in that: The movable frame (202) is connected to the connecting plate (3) via bolts, and the top end of the screw rod (204) is connected to the bearing in the housing (203).

5. The automatic unloading device for a shot blasting machine according to claim 1, characterized in that: Both ends of the guide rod (201) are connected to the inner wall of the outer shell (203), and both ends of the connecting rod (9) are hinged to the support frame (4).

6. The automatic unloading device for a shot blasting machine according to claim 1, characterized in that: The protective structure (7) comprises a rubber pad (701), a base plate (702), a magnet block (703), an iron block (704), an extension plate (705) and a positioning column (706); the positioning column (706) is connected to the bottom end of the discharge hopper (5); the outer side of the positioning column (706) is provided with an extension plate (705), and one side of the extension plate (705) is connected to the base plate (702); the outer side of the base plate (702) is provided with a rubber pad (701); the interior of the base plate (702) is inlaid with a magnet block (703); and the interior of the bottom end of the discharge hopper (5) is inlaid with an iron block (704).

7. The automatic unloading device for a shot blasting machine according to claim 6, characterized in that: The iron block (704) is in contact with the magnet block (703), and a rubber pad (701) is wrapped on the outer surface of the discharge hopper (5).

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