Shot blasting machine for metal casting pretreatment

Abstract

The utility model relates to a shot blasting machine for metal casting pretreatment, which comprises: a shot blasting chamber, which is internally provided with a cavity for workpiece processing, and on which two shot blasting devices are oppositely arranged; a lifting hook conveying unit is arranged above the shot blasting chamber and is used for conveying workpieces into the shot blasting chamber; an auger is arranged in the shot blasting chamber, an elevator is arranged on the shot blasting chamber, the elevator is communicated with the shot blasting chamber, and a recovery chamber is arranged above the elevator; the dust removal mechanism comprises a waste box, a dust collection chamber arranged on the elevator and a filter screen arranged in the recovery chamber, dust and waste generated in the shot blasting process can be effectively removed through cooperative work of the dust collection chamber, the cyclone dust collector and the waste box of the dust removal mechanism, the working environment is improved, and the service life of the shot blasting machine is prolonged. And shot blasting and timely recovery and treatment of waste residues reduce the phenomena of abrasion and blockage in the equipment.

Description

Technical Field

[0001] This application relates to the field of metal processing technology, and in particular to a shot blasting machine for pretreatment of metal castings. Background Technology

[0002] In the metal casting manufacturing industry, for example, in the production process of flame cutting machines, shot blasting is a common surface treatment process that is widely used to remove oxide scale, rust, burrs and improve the surface quality of castings.

[0003] Existing shot blasting machines typically include recycling and reuse devices in their shot blasting circulation systems. These devices collect and recycle used shot and waste, then separate reusable shot through screening or filtration. However, this process is hampered by the small size and irregular shape of the waste particles. Furthermore, some waste particles share similar physical properties with the shot. For example, tiny particles such as dust and extremely fine debris easily adhere to the shot surface or become mixed in with it, making them difficult to remove effectively using conventional screening or filtration methods.

[0004] To address the aforementioned issues, a shot blasting machine for the pretreatment of metal castings is now designed. Utility Model Content

[0005] This application provides a shot blasting machine for pretreatment of metal castings, which solves the problem in the existing shot blasting machines in the shot blasting circulation system that it is difficult to effectively remove small particulate waste, such as dust and extremely fine debris, through conventional screening or filtration methods.

[0006] In a first aspect, a shot blasting machine for pretreatment of metal castings is provided, comprising:

[0007] A shot blasting chamber has a cavity inside for workpiece processing, and two shot blasters are arranged opposite each other on the cavity;

[0008] A hook conveying unit is provided above the shot blasting chamber, which is used to send the workpiece into the shot blasting chamber.

[0009] The hook conveying unit includes a drive component disposed above the shot blasting chamber, a lifting component connected to the drive component, a rotating component connected to the lifting component, and a hook disposed on the rotating component;

[0010] The shot blasting chamber is equipped with an auger, and an elevator is installed on top of the shot blasting chamber. The elevator is connected to the shot blasting chamber. The auger is used to transport shot and waste residue into the elevator. A recovery chamber is installed above the elevator. The elevator is used to transport shot into the recovery chamber. The recovery chamber is connected to the shot blaster through a pipeline.

[0011] The dust removal mechanism includes a waste bin, a dust collection chamber mounted on a hoist, a filter screen mounted in a recovery chamber, and a cyclone dust collector connected to the waste bin. A second filter screen is embedded between the dust collection chamber and the hoist and is interconnected. The air inlet of the cyclone dust collector is connected to both the dust collection chamber and the recovery chamber.

[0012] In some embodiments, the auger is arranged horizontally, the hoist is arranged vertically, and the auger and the hoist are perpendicular to each other;

[0013] The auger includes a spiral conveyor rod rotatably disposed below the interior of the shot blasting chamber, and a drive motor disposed on the shot blasting chamber. The drive motor is connected to the spiral conveyor rod and is used to drive the spiral conveyor rod to rotate.

[0014] In some embodiments, the elevator includes a housing disposed on the shot blasting chamber, the housing having a cavity, a second spiral conveying rod rotatably disposed inside the cavity, the cavity inside the housing being adapted to the second spiral conveying rod, a second drive motor disposed above the housing, and the output shaft of the second drive motor being connected to the second spiral conveying rod;

[0015] The recycling chamber is located on the upper side of one side of the housing, the dust collection chamber is located at the bottom of the recycling chamber, and the second filter is embedded in the housing.

[0016] In some embodiments, a feed inlet is provided between the recycling chamber and the housing, and the filter screen separates the recycling chamber to form a recycling cavity and a dust collection cavity;

[0017] The bottom of the recovery chamber is provided with multiple pipes that communicate with the shot blasting machine.

[0018] In some embodiments, the air inlet of the cyclone dust collector is connected to two air inlet pipes, and the other ends of the two air inlet pipes are respectively connected to the dust collection chamber and the dust collection room;

[0019] The outlet of the cyclone dust collector is connected to the waste bin via a pipe.

[0020] In some embodiments, the waste bin includes a box body, a fan is provided on the upper part of the box body, a cylindrical filter is provided inside the box body, the cylindrical filter is hollow inside and open at the top, and the air inlet of the fan extends to the top of the cylindrical filter.

[0021] In some embodiments, the bottom of the shot blasting chamber is conical, and the bottom of the shot blasting chamber is provided with a U-shaped groove that matches the spiral conveyor rod.

[0022] This application provides a shot blasting machine for the pretreatment of metal castings. By using a screw conveyor and a hoist in combination, the automatic separation and recycling of shot blasting and waste residue are achieved, enabling the shot blasting to be recycled and reducing production costs.

[0023] By combining the dust collection chamber, cyclone dust collector, and waste bin of the dust removal mechanism, dust and waste generated during shot blasting are effectively removed, improving the working environment, protecting the health of operators, and the timely recycling and disposal of shot blasting and waste reduces wear and blockage inside the equipment, extending its service life. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 A three-dimensional structural illustration provided for an embodiment of this application. Figure 1 ;

[0026] Figure 2 A three-dimensional structural illustration provided for an embodiment of this application. Figure 2 ;

[0027] Figure 3 A three-dimensional structural illustration provided for an embodiment of this application. Figure 3 ;

[0028] Figure 4 Right sectional view provided for an embodiment of this application;

[0029] Figure 5 This is a rear sectional view of the connection structure between the elevator, the recovery chamber, and the dust collection chamber provided in an embodiment of this application.

[0030] Figure 6 This is a right sectional view of the recycling chamber provided in an embodiment of this application;

[0031] Figure 7 This is a front sectional view of the waste bin provided in an embodiment of this application.

[0032] In the diagram: 1. Shot blasting chamber; 2. Hook conveying unit; 21. Drive component; 22. Lifting component; 23. Rotating component; 24. Hook; 3. Screw conveyor rod one; 32. Drive motor one; 4. Elevator; 41. Housing; 42. Screw conveyor rod two; 43. Drive motor two; 5. Recovery chamber; 51. Recovery cavity; 52. Dust suction cavity; 6. Dust removal mechanism; 61. Dust suction chamber; 62. Filter screen; 63. Waste bin; 631. Box body; 632. Fan; 633. Cylindrical filter; 64. Cyclone dust collector; 65. Filter screen two. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0034] This application provides a shot blasting machine for the pretreatment of metal castings, which can solve the problem in the existing shot blasting machines in the shot blasting circulation system that it is difficult to effectively remove small particulate waste, such as dust and extremely fine debris, through conventional screening or filtration methods.

[0035] Please see Figures 1-3 A shot blasting machine for pretreatment of metal castings includes: 1. A shot blasting machine for pretreatment of metal castings, characterized in that it includes:

[0036] Shot blasting chamber 1 has a cavity inside for workpiece processing, and two shot blasters are arranged opposite each other on the cavity;

[0037] A hook conveying unit 2 is provided above the shot blasting chamber 1, and the hook conveying unit 2 is used to send the workpiece into the shot blasting chamber 1.

[0038] The hook conveying unit 2 includes a drive component 21 disposed above the shot blasting chamber 1, a lifting component 22 connected to the drive component 21, a rotating component 23 connected to the lifting component 22, and a hook 24 disposed on the rotating component 23.

[0039] The shot blasting chamber 1 is equipped with an auger 3, and an elevator 4 is installed on the shot blasting chamber 1. The elevator 4 is connected to the shot blasting chamber 1. The auger 3 is used to transport shot and waste residue into the elevator 4. A recovery chamber 5 is installed above the elevator 4. The elevator 4 is used to transport shot into the recovery chamber 5. The recovery chamber 5 is connected to the shot blaster through a pipeline.

[0040] The dust removal mechanism 6 includes a waste bin 63, a dust collection chamber 61 mounted on the elevator 4, a filter screen 62 mounted in the recovery chamber 5, and a cyclone dust collector 64 connected to the waste bin 63. A second filter screen 65 is embedded between the dust collection chamber 61 and the elevator 4 and is interconnected. The air inlet of the cyclone dust collector 64 is connected to both the dust collection chamber 61 and the recovery chamber 5.

[0041] The drive component 21 serves as the power source, the lifting component 22 provides the power basis for horizontal movement, the lifting component 22 realizes the vertical lifting movement, and the rotating component 23 drives the hook 24 to rotate, thereby realizing the all-round movement of the hook 24 and sending the workpiece into the shot blasting chamber 1 for processing.

[0042] Two shot blasters arranged opposite each other in the shot blasting chamber 1 work simultaneously to blast the workpiece. After the shot and waste accumulate in the shot blasting chamber 1, they are transported to the elevator 4 by the auger 3. The elevator 4 then lifts the shot to the recovery chamber 5.

[0043] The filter 62 in the recovery chamber 5 separates the shot blasting material from the waste. The shot blasting material is then transported back to the shot blaster for recycling via a pipeline. The dust collection chamber 61, located above the elevator 4, is connected to the elevator 4 via a second filter 65 to absorb the dust generated during the lifting process. The air inlet of the cyclone dust collector 64 is connected to both the dust collection chamber 61 and the recovery chamber 5, separating the dust and waste from the intake air through centrifugal force. The separated waste is transported to the waste bin 63 via a pipeline, while the purified air is discharged outside the system.

[0044] By using the auger 3 and the elevator 4 together, the automatic separation and recycling of shot blasting and waste residue are achieved, enabling shot blasting to be recycled and reducing production costs.

[0045] Through the coordinated operation of the dust collection chamber 61, cyclone dust collector 64, and waste bin 63 of the dust removal mechanism 6, the dust and waste generated during the shot blasting process are effectively removed, improving the working environment, protecting the health of operators, and the timely recycling and disposal of shot blasting and waste residue reduces wear and blockage inside the equipment, extending the service life of the equipment.

[0046] The design of the hook conveyor unit 2 enables the workpiece to be quickly and accurately fed into the shot blasting chamber 1, reducing the time and labor intensity of manual operation and improving processing efficiency.

[0047] The two shot blasters arranged opposite each other in the shot blasting chamber 1 can simultaneously blast the workpiece, making the shot blasting more uniform and comprehensive, and improving the shot blasting effect.

[0048] like Figure 4 and Figure 5As shown, specifically, in this embodiment, the auger 3 is arranged horizontally, the elevator 4 is arranged vertically, and the auger 3 and the elevator 4 are perpendicular to each other;

[0049] The auger 3 includes a spiral conveying rod 31 rotatably disposed below the interior of the shot blasting chamber 1, and a drive motor 32 disposed on the shot blasting chamber 1. The drive motor 32 is connected to the spiral conveying rod 31 and is used to drive the spiral conveying rod 31 to rotate.

[0050] The auger 3 is arranged horizontally inside the lower part of the shot blasting chamber 1. The spiral conveyor rod 31 is rotatably mounted inside the lower part of the shot blasting chamber 1 via bearings and can rotate around its own axis. The drive motor 32 is mounted on the shot blasting chamber 1 and connected to the spiral conveyor rod 31 via a coupling.

[0051] When the drive motor 32 starts, the rotational power of its output shaft is transmitted to the screw conveyor 31, driving the screw conveyor 31 to rotate at a certain speed.

[0052] During the operation of the shot blasting machine, shot and waste residue accumulate in the shot blasting chamber 1 and gradually fall to the bottom of the shot blasting chamber 1. When the spiral conveyor rod 31 rotates, the spiral blades on its surface will generate a pushing force on the shot and waste residue, and transport them along the axial direction of the spiral conveyor rod 31, that is, laterally, so that they move from the bottom of the shot blasting chamber 1 to the feed port of the elevator 4.

[0053] The elevator 4 is arranged vertically and is perpendicular to the auger 3. The auger 3 transports the shot and waste horizontally to the feed inlet of the elevator 4, and then the shot and waste fall into the feed inlet of the elevator 4 under the action of gravity.

[0054] like Figure 5 As shown, further, the elevator 4 in this embodiment includes a housing 41 disposed on the shot blasting chamber 1. The housing 41 has a cavity, and a spiral conveying rod 42 is rotatably disposed inside the cavity. The cavity inside the housing 41 is adapted to the spiral conveying rod 42. A drive motor 43 is disposed above the housing 41, and the output shaft of the drive motor 43 is connected to the spiral conveying rod 42. The recovery chamber 5 is disposed above one side of the housing 41, the dust collection chamber 61 is located at the bottom of the recovery chamber 5, and the filter screen 65 is embedded in the housing 41.

[0055] The housing 41 is mounted on the shot blasting chamber 1, and its interior forms a cavity to provide space for conveying shot and waste residue. The spiral conveyor rod 42 is rotatably mounted inside the cavity of the housing 41, and the cavity is adapted to the spiral conveyor rod 42 to ensure that the shot and waste residue can rise smoothly under the push of the spiral conveyor rod 42.

[0056] The second drive motor 43 is mounted above the housing 41, and its output shaft is connected to the second screw conveyor rod 42. When the second drive motor 43 starts, the output shaft rotates, transmitting power to the second screw conveyor rod 42, causing the second screw conveyor rod 42 to rotate around its own axis.

[0057] The auger 3 transports the shot blasting material and waste residue laterally to below the feed inlet of the elevator 4. Under the influence of gravity, the shot blasting material and waste residue fall into the bottom of the cavity of the housing 41. As the screw conveyor rod 42 rotates, the helical blades on its surface exert an upward thrust on the shot blasting material and waste residue, causing them to move vertically upward along the axial direction of the screw conveyor rod 42, and finally be transported to the recovery chamber 5 above the elevator 4.

[0058] Meanwhile, filter screen 65 is located between the dust collection chamber 61 and the elevator 4. It plays a filtering role, allowing air to pass through while blocking shot blasting. When the dust collection chamber 61 is working, the suction force generated causes air to carry dust and waste through filter screen 65, while shot blasting is blocked outside of filter screen 65, ensuring that the dust collection chamber 61 can effectively absorb dust and waste without being disturbed by shot blasting.

[0059] The recovery chamber 5 is located above one side of the housing 41 and is used to receive shot blasting and residual waste from the elevator 4. Inside the recovery chamber 5, after the shot blasting and waste enter the recovery chamber 5, they are first initially separated by the filter screen 62. The aperture of the filter screen 62 does not allow the shot blasting to pass through, so that the shot blasting remains in the recovery chamber 5. However, some fine waste and dust may pass through the filter screen 62. Through the filtration of the filter screen 62 and the adsorption of the cyclone dust collector 64, the shot blasting and waste are separated a second time, so that the shot blasting can be returned to the shot blaster for recycling.

[0060] like Figure 4 As shown, in one embodiment, a feed inlet is provided between the recovery chamber 5 and the housing 41, and the filter screen 62 separates the recovery chamber 5 to form a recovery cavity 51 and a dust suction cavity 52; the bottom of the recovery cavity 51 is provided with multiple pipes communicating with the shot blasting machine.

[0061] The recovery chamber 5 is divided into a recovery cavity 51 and a dust collection cavity 52 by a filter 62. The synergistic effect of the filter 62 and the cyclone dust collector 64 achieves secondary separation of shot blasting material and waste residue. The dust collection cavity 61, protected by a second filter 65, effectively absorbs dust, ensuring a clean working environment. Finally, the shot blasting material returns to the shot blaster for recycling through the bottom pipe of the recovery cavity 51, while the waste residue is disposed of in the waste bin 63.

[0062] After shot blasting and waste enter the recovery chamber 5 through the feed inlet, the shot blasting particles are intercepted in the recovery chamber 51 by the filter screen 62 due to their large particle size. The waste and some fine dust enter the dust collection chamber 52 through the filter screen 62. The air in the dust collection chamber 52 carries the waste and dust into the cyclone dust collector 64. Centrifugal force is used to separate the waste and dust and collect them in the waste bin 63. The purified air is then discharged.

[0063] like Figure 1 and Figure 6 As shown, in one embodiment, the air inlet of the cyclone dust collector 64 is connected to two air inlet pipes, and the other ends of the two air inlet pipes are respectively connected to the dust collection chamber 52 and the dust collection room 61; the air outlet of the cyclone dust collector 64 is connected to the waste bin 63 through a pipe.

[0064] It is understandable that the bottom slag discharge port of the cyclone dust collector 64 is connected to the external recycling pipeline.

[0065] The recovery chamber 5 is divided into a recovery chamber 51 and a dust collection chamber 52 by a filter screen 62. The filter screen 62 is used to initially separate the shot blasting material from the waste residue and dust, so that the shot blasting material remains in the recovery chamber 51, while the waste residue and dust enter the dust collection chamber 52. At the same time, the dust collection chamber 61, protected by the filter screen 65, effectively absorbs the dust generated in the system and prevents the dust from overflowing and affecting the working environment.

[0066] The dust collection chamber 52 of the recycling chamber 5 contains waste residue and some fine dust filtered from the filter screen 62. One of the air inlet pipes connects the dust collection chamber 52 to the air inlet of the cyclone dust collector 64. When the cyclone dust collector 64 is working, a negative pressure is generated at the air inlet, and the dust-laden air in the dust collection chamber 52 is drawn into the cyclone dust collector 64 through the air inlet pipe.

[0067] The dust collection chamber 61 is responsible for absorbing dust generated from other parts of the shot blasting machine system, and a large amount of dust-laden air also accumulates inside it. Another air intake pipe connects the dust collection chamber 61 to the air intake of the cyclone dust collector 64. Similarly, the negative pressure generated by the air intake of the cyclone dust collector 64 is used to draw the dust-laden air in the dust collection chamber 61 into the cyclone dust collector 64.

[0068] After the dust-laden air enters the cyclone dust collector 64, it rotates within the cyclone body. Under the action of centrifugal force, the waste residue and dust are thrown against the wall of the cyclone body and slide down the wall to the slag discharge port, while the preliminarily purified air is discharged from the air outlet of the cyclone dust collector 64 into the waste bin 63 for secondary filtration.

[0069] like Figure 1 and Figure 7As shown, specifically, the waste bin 63 includes a bin body 631, a fan 632 is provided on the upper part of the bin body 631, and a cylindrical filter 633 is provided inside the bin body 631. The cylindrical filter 633 is hollow inside and open at the top. The air inlet of the fan 632 extends to the top of the cylindrical filter 633.

[0070] After preliminary purification, the air enters the housing 631 of the waste bin 63 through the outlet of the cyclone dust collector 64 and the pipe. The air flows around the cylindrical filter 633 inside the housing 631 and permeates from the outside to the inside of the cylindrical filter 633. During the permeation process, the fine dust in the air is intercepted by the cylindrical filter 633, while the clean air enters the hollow channel inside the cylindrical filter 633.

[0071] The fan 632 generates negative pressure above the cylindrical filter 633, drawing out the clean air inside the cylindrical filter 633 and discharging it into the atmosphere or other designated emission areas through the outlet of the fan 632.

[0072] The combination of cyclone dust collector 64 and waste bin 63 for secondary filtration greatly improves dust removal efficiency. Cyclone dust collector 64 performs preliminary separation of most waste residue and dust, while the cylindrical filter 633 in waste bin 63 further removes fine dust from the air, ensuring that the discharged air meets environmental protection requirements.

[0073] like Figure 1 and Figure 3 As shown, it should be noted that the bottom of the shot blasting chamber 1 in this embodiment is conical, and the bottom of the shot blasting chamber 1 is provided with a U-shaped groove that matches the spiral conveying rod 31.

[0074] The bottom of the shot blasting chamber 1 is designed with a conical structure, that is, it gradually narrows from the side wall of the shot blasting chamber 1 towards the center to form a pointed bottom. This makes the space at the bottom of the shot blasting chamber 1 gradually smaller, which is conducive to concentrating and guiding materials such as shot, waste residue and dust to the central area at the bottom of the shot blasting chamber 1, reducing the accumulation of materials at the bottom of the shot blasting chamber 1 and improving the material collection efficiency.

[0075] A U-shaped groove is provided at the bottom of the shot blasting chamber 1, and the shape of the U-shaped groove matches the shape of the spiral conveyor rod 31. The width and depth of the U-shaped groove are designed according to the size of the spiral conveyor rod 31 to ensure that the spiral conveyor rod 31 can rotate and move smoothly within the U-shaped groove.

[0076] The spiral conveyor rod 31 is installed in the U-shaped groove. The spiral conveyor rod 31 is driven to rotate by a drive device such as a motor. During the rotation, the spiral blades on the spiral conveyor rod 31 transport the shot, waste residue and dust and other materials that are concentrated at the bottom of the shot blasting chamber 1 into the U-shaped groove forward along the U-shaped groove.

[0077] like Figure 1 and Figure 2 As shown, the drive unit 21 in this embodiment includes a support frame disposed above the shot blasting chamber 1, a linear electric slide rail disposed at the bottom of the support frame, and a lifting unit 22 disposed on the linear electric slide rail.

[0078] The lifting mechanism 22 includes two electric push rods that are positioned opposite each other at the bottom of the slider on the linear electric slide rail, and a fixed plate is provided at the bottom end of the electric push rods;

[0079] The rotating component 23 includes a drive motor and a reducer mounted on a fixed disk. The output shaft of the drive motor is connected to the input shaft of the reducer, and the output shaft of the reducer is connected to the hook 24.

[0080] The shot blasting chamber 1 has an opening on one side, with a side door hinged to the opening. An opening for the movement of a hook is located above the shot blasting chamber 1, and a U-shaped partition is installed at the opening.

[0081] The support frame is installed above the shot blasting chamber 1, providing stable support for the entire drive mechanism. A linear electric slide rail is located at the bottom of the support frame, guiding the horizontal movement of the lifting component 22.

[0082] The lifting component 22 is mounted on a linear electric slide rail via a slider. When it is necessary to adjust the horizontal position of the hook 24, the slider is moved along the length of the support frame via the linear electric slide rail, thereby moving the lifting component 22 as a whole, so that the hook 24 can reach the designated position above the shot blasting chamber 1.

[0083] An electric linear actuator is an electrically driven device that converts the rotary motion of an electric motor into the linear reciprocating motion of a linear actuator. When it is necessary to lift or lower a workpiece, the extension and retraction of the electric linear actuator is controlled to drive the fixed plate to move up and down, which in turn drives the rotating component 23 and the hook 24 connected to the fixed plate to move up and down, thereby realizing the lifting and lowering operation of the workpiece.

[0084] The drive motor provides power for the rotational motion, while the reducer is used to reduce the output speed of the drive motor and increase the output torque to meet the rotational requirements of the hook 24.

[0085] When the drive motor starts, it transmits power to the hook 24 through the reducer, causing the hook 24 to rotate the workpiece so that different parts of the workpiece can be thoroughly cleaned during the shot blasting process.

[0086] The shot blasting chamber 1 has an opening on one side, with a side door hinged to the opening. The side door can be easily opened and closed for easy loading and unloading of workpieces. During the shot blasting process, the side door is closed to prevent shot and dust from spilling out, ensuring a safe and clean working environment.

[0087] An opening for the movement of the hook is provided above the shot blasting chamber 1. A U-shaped enclosure is installed at the opening. The U-shaped enclosure can play a certain protective role, preventing shot and dust from splashing out from the opening, and at the same time providing some guidance and protection for the up and down movement of the hook 24.

[0088] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0089] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0090] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A shot-blasting machine for the pretreatment of metal castings, characterized in that include: The shot blasting chamber (1) has a cavity for workpiece processing inside, and two shot blasters are arranged opposite each other on the cavity; A hook conveying unit (2) is provided above the shot blasting chamber (1), and the hook conveying unit (2) is used to send the workpiece into the shot blasting chamber (1); The hook conveying unit (2) includes a drive component (21) disposed above the shot blasting chamber (1), a lifting component (22) connected to the drive component (21), and a rotating component (23) connected to the lifting component (22). A hook (24) is disposed on the rotating component (23). The shot blasting chamber (1) is equipped with an auger (3), and an elevator (4) is installed on the shot blasting chamber (1). The elevator (4) is connected to the shot blasting chamber (1). The auger (3) is used to transport shot and waste residue to the elevator (4). A recovery chamber (5) is installed above the elevator (4). The elevator (4) is used to transport shot to the recovery chamber (5). The recovery chamber (5) is connected to the shot blaster through a pipe. The dust removal mechanism (6) includes a waste bin (63), a dust collection chamber (61) set on the elevator (4), a filter screen (62) set in the recycling chamber (5), and a cyclone dust collector (64) connected to the waste bin (63). A second filter screen (65) is embedded between the dust collection chamber (61) and the elevator (4) and is interconnected. The air inlet of the cyclone dust collector (64) is connected to the dust collection chamber (61) and the recycling chamber (5) respectively.

2. The shot blasting machine for pretreatment of metal castings as described in claim 1, characterized in that: The auger (3) is arranged horizontally, the hoist (4) is arranged vertically, and the auger (3) and the hoist (4) are perpendicular to each other; The auger (3) includes a spiral conveying rod (31) rotatably disposed below the interior of the shot blasting chamber (1) and a drive motor (32) disposed on the shot blasting chamber (1). The drive motor (32) is connected to the spiral conveying rod (31) and is used to drive the spiral conveying rod (31) to rotate.

3. The shot blasting machine for pretreatment of metal castings as described in claim 1, characterized in that: The elevator (4) includes a housing (41) disposed on the shot blasting chamber (1), the housing (41) having a cavity, a spiral conveying rod (42) being rotatably disposed inside the cavity, the cavity inside the housing (41) being adapted to the spiral conveying rod (42), a drive motor (43) being disposed above the housing (41), and the output shaft of the drive motor (43) being connected to the spiral conveying rod (42); The recycling chamber (5) is located above one side of the housing (41), the dust collection chamber (61) is located at the bottom of the recycling chamber (5), and the filter screen (65) is embedded in the housing (41).

4. A shot blasting machine for pretreatment of metal castings as described in claim 3, characterized in that: The recycling chamber (5) and the housing (41) are connected by a feed inlet, and the filter screen (62) separates the recycling chamber (5) to form a recycling cavity (51) and a dust suction cavity (52). The bottom of the recovery chamber (51) is provided with multiple pipes that communicate with the shot blaster.

5. A shot blasting machine for pretreatment of metal castings as described in claim 1, characterized in that: The air inlet of the cyclone dust collector (64) is connected to two air inlet pipes, and the other ends of the two air inlet pipes are connected to the dust suction chamber (52) and the dust suction room (61) respectively. The outlet of the cyclone dust collector (64) is connected to the waste bin (63) via a pipe.

6. A shot blasting machine for pretreatment of metal castings as described in claim 1, characterized in that: The waste bin (63) includes a box body (631), a fan (632) is provided on the upper part of the box body (631), a cylindrical filter (633) is provided inside the box body (631), the cylindrical filter (633) is hollow inside and open at the top, and the air inlet of the fan (632) extends to the top of the cylindrical filter (633).

7. A shot blasting machine for pretreatment of metal castings as described in claim 2, characterized in that: The bottom of the shot blasting chamber (1) is conical, and a U-shaped groove matching the spiral conveying rod (31) is provided at the bottom of the chamber.

Images