A shot blasting machine

Abstract

A kind of shot blasting machine, the shot blasting machine includes: cleaning mechanism is equipped with inlet and outlet, and the cleaning cavity is formed between inlet and outlet, motor and throw head are fixedly connected on cleaning mechanism;Rolling mechanism is equipped with track, and guide edge on track;Feeding mechanism includes feeding pipe, and also includes the first vibration mechanism fixedly connected to feeding pipe;Discharge mechanism includes discharge pipe, and also includes the first vibration mechanism fixedly connected to discharge pipe, the surface of discharge pipe is equipped with first screen and collection pipe;Collecting groove is connected with collection pipe pipeline;Wherein, the obtuse angle between second direction and the movement direction of the surface of rolling mechanism, after workpiece enters cleaning cavity, throw head sprays projectile to clean workpiece in cleaning cavity, the output shaft of motor drives rolling mechanism to rotate, guide edge overturns workpiece, and workpiece is continuously guided along second direction, and falls into discharge pipe in succession The projectile in first screen and collection pipe enters collecting groove.

Description

Technical Field

[0001] This utility model relates to the field of surface treatment of metal workpieces, and in particular to a shot blasting machine. Background Technology The through-drum shot blasting machine is an ideal device for cleaning various castings and forgings that are not susceptible to impact or scratches. Existing technology includes a composite structure combining a drum and a vibratory conveyor, typically comprising a centrally located drum and cylindrical vibratory conveyor pipes connected to the drum's inlet and outlet ends. During operation, the workpiece enters the drum through the inlet vibratory conveyor pipe, undergoes high-speed shot blasting within the drum, and is then discharged through the outlet vibratory conveyor pipe, ultimately exiting the equipment. This achieves continuous feeding, cleaning, and unloading of workpieces.

[0002] However, such existing structures often present several problems in practical applications, severely impacting equipment reliability and cleaning efficiency. Firstly, because the drum operates in a high-speed open tumbling state, and its discharge end is connected to the discharge vibrating conveyor pipe, the cleaned workpiece needs to be unloaded. During shot blasting, a large number of high-speed shot pellets fail to fall into the collection trough below the drum, instead splashing out from the drum's open discharge port and directly into the connected discharge vibrating conveyor pipe. These splashed pellets not only mix with the cleaned workpieces within the vibrating conveyor pipe but also, with the vibration of the pipe, splash out from its opening or connecting gaps to the outside of the equipment. This not only leads to significant shot waste and increases production costs but also pollutes the environment around the equipment. Furthermore, in drum-type shot blasting machines, after the workpiece enters the drum from the infeed vibrating conveyor pipe, it is mainly carried to a certain height by the friction of the inner wall and the baffles during drum rotation, and then falls freely under gravity, achieving tumbling and cleaning. However, this tumbling method typically lacks a continuous and directional mechanical guiding force for the workpiece near the outlet. This causes the workpiece to be repeatedly lifted and then fallen back before entering the vibrating conveyor tube at the outlet, resulting in a backflow phenomenon. The workpiece cannot be effectively and smoothly discharged from the drum into the discharge vibrating conveyor tube. This problem easily leads to workpiece accumulation at the drum outlet, eventually causing blockages inside the drum, forcing the production line to stop for manual cleaning and disrupting the continuity of the cleaning process.

[0003] Therefore, it is necessary to provide a shot blasting machine that can prevent shot leakage at the discharge end and prevent workpieces from accumulating due to repeated tumbling inside the drum. Utility Model Content

[0004] The purpose of this invention is to provide a shot blasting machine that can prevent shot leakage at the discharge end and prevent workpieces from accumulating due to repeated tumbling inside the drum.

[0005] According to one aspect of this application, a shot blasting machine is provided, the shot blasting machine comprising: A cleaning mechanism is provided with an inlet and an outlet that pass through the cleaning mechanism, and a cleaning chamber extending in a first direction is formed between the inlet and the outlet. A motor and a shovel are fixedly connected to the cleaning mechanism. A rolling mechanism is located inside the cleaning mechanism and between the inlet and outlet, and is connected to the output shaft of the motor. The rolling mechanism is provided with a track and a plurality of guide edges extending along a second direction and perpendicular to the track surface. A feeding mechanism is located on the side of the inlet away from the rolling mechanism. The feeding mechanism includes a feeding tube that extends into the inlet and extends in a third direction, and a first vibration mechanism that is fixedly connected to the feeding tube. The discharge mechanism is located on the side of the discharge port away from the rolling mechanism. The discharge mechanism includes a discharge pipe that extends into the discharge port and also extends in a third direction, and a second vibration mechanism that is fixedly connected to the discharge pipe. The surface of the discharge pipe is provided with a first filter screen, and a collection pipe that communicates with the first filter screen and is fixed on the discharge pipe. A collection tank is fixedly connected to the cleaning mechanism and located on the side of the cleaning chamber away from the throwing head. The collection tank is connected to the collection pipe. Wherein, the second direction forms an obtuse angle with the movement direction of the surface of the rolling mechanism. After the workpiece enters the cleaning chamber, the blasting head sprays shot into the cleaning chamber to clean the workpiece. The output shaft of the motor drives the rolling mechanism to rotate. The guide edge flips the workpiece and continuously guides the workpiece to move along the first direction along the second direction. The shot falling into the discharge pipe passes through the first filter screen and the collection pipe in sequence and enters the collection tank.

[0006] More preferably, the first vibration mechanism includes a first base, a first bracket located between the first base and the feeding pipe, with one end spring-connected to the first base and the other end abutting against the feeding pipe, a first support plate fixedly connected to the first bracket, and a first vibrator fixedly connected to the first support plate and located on the side of the first support plate opposite to the first base.

[0007] More preferably, after the first vibrator is started, the vibration force is transmitted sequentially through the first support plate and the first bracket to the feeding pipe, so as to shake the workpiece into the inlet along the feeding pipe; When the first vibrator vibrates, the first base buffers the vibration force transmitted to the first support.

[0008] More preferably, the second vibration mechanism includes a second base, a second bracket located between the second base and the discharge pipe, with one end spring-connected to the second base and the other end abutting against the discharge pipe, a second support plate fixedly connected to the second bracket, and a second vibrator fixedly connected to the second support plate and located on the side of the second support plate opposite to the second base.

[0009] More preferably, after the second vibrator is started, the vibration force is transmitted sequentially through the second support plate and the second bracket to the discharge pipe, so as to shake the workpiece out of the discharge port along the discharge pipe; When the second vibrator vibrates, the second base buffers the vibration force transmitted to the second support.

[0010] More preferably, the rolling mechanism further includes a drive shaft, a first driven shaft, and a second driven shaft that respectively contact the inner ring of the track; The first driven shaft and the second driven shaft are rotatably connected to the cleaning mechanism. A first sprocket is fixedly connected to the output shaft of the motor, and a second sprocket is fixedly connected to the drive shaft. A chain meshes between the first sprocket and the second sprocket. When the motor starts, the first sprocket drives the second sprocket to rotate, thereby driving the drive shaft.

[0011] More preferably, the inlet and outlet abut against both sides of the track, and the abutment area is located between the drive shaft and the second driven shaft to tension the track.

[0012] More preferably, the shot blasting machine further includes: The lifting mechanism is fixedly connected to the cleaning mechanism; A dust removal mechanism is fixedly connected to the lifting mechanism and located on the side of the dust removal mechanism away from the cleaning mechanism; The dust removal mechanism is equipped with several filter elements. One end of the dust removal mechanism is connected to a fan, and the other end, away from the fan, is connected to the lifting mechanism.

[0013] More preferably, the collection tank includes: case, The second filter screen is fixedly connected to the housing and located between the housing and the rolling mechanism; A screw conveyor is located inside the housing and on the side of the second filter screen opposite to the rolling mechanism; The screw conveyor is rotatably connected to the lifting mechanism, which drives the blades of the screw conveyor to rotate and pushes the projectiles in the collection trough toward the lifting mechanism.

[0014] More preferably, the shot blasting machine further includes: A shot separator is fixedly connected to the cleaning mechanism and is located on the side of the cleaning chamber away from the collection tank. The shot separator is connected to the pipelines of the blasting head and the lifting mechanism. The shot in the collection tank is transported back to the shot separator through the lifting mechanism for recycling.

[0015] This utility model has the following beneficial effects: By installing a first filter screen in the discharge pipe and a collection pipe connecting the first filter screen and the collection trough, the projectiles falling into the discharge pipe can pass through the first filter screen and the collection pipe sequentially into the collection trough, preventing the projectiles from leaking out of the discharge pipe. Furthermore, the track of the rolling mechanism is equipped with a vertical guide edge extending in a second direction, with the second direction forming an obtuse angle with the movement direction of the rolling mechanism surface. This ensures that when the workpiece is tumbled by the guide edge in the rolling mechanism, it can continuously move towards the discharge port along the first direction under the guidance of the guide edge, preventing the workpiece from repeatedly tumbling inside the drum and causing workpiece accumulation. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of the shot blasting machine described in one embodiment of this application; Figure 2 This is a schematic diagram of the planar structure of the shot blasting machine described in one embodiment of this application; Figure 3 This is a three-dimensional structural diagram of the prompting mechanism after separation from the housing in one embodiment of this application; Figure 4 This is a schematic diagram of the planar structure of the dust removal mechanism described in one embodiment of this application after the cover plate is separated, viewed from a top-down direction. Figure 5 This is a schematic diagram of the planar structure of the rolling mechanism described in one embodiment of this application; Figure 6 This is a three-dimensional structural diagram of the collection tank described in one embodiment of this application; Figure 7 This is a schematic diagram of the planar structure of the track in the rolling mechanism described in one embodiment of this application; Figure 8 This is a schematic cross-sectional view of the discharge pipe described in one embodiment of this application; Reference numerals: 100, Shot blasting machine; 10, Cleaning mechanism; 11, Feed inlet; 12, Discharge outlet; 13, Cleaning chamber; 14, Blasting head; 20, Rolling mechanism; 21, Motor; 22, Track; 23, Guide edge; 24, Drive shaft; 25, First driven shaft; 26, Second driven shaft; 27, First sprocket; 28, Second sprocket; 29, Chain; 30, Feeding mechanism; 31, Feeding pipe; 32, First vibration mechanism; 32A, First base; 32B, First bracket; 32C, First support plate; 32 D. First vibrator; 40. Discharge mechanism; 41. Discharge pipe; 41A. First filter screen; 41B. Collection pipe; 42. Second vibration mechanism; 42A. Second base; 42B. Second bracket; 42C. Second support plate; 42D. Second vibrator; 50. Collection trough; 51. Housing; 52. Second filter screen; 53. Screw conveyor; 60. Lifting mechanism; 70. Dust removal mechanism; 71. Filter element; 72. Fan; 80. Shot and sand separator; F1. First direction; F2. Second direction; F3. Third direction. Detailed Implementation

[0018] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this application.

[0019] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0021] Please refer to Figure 1 - Figure 8 One embodiment of this application provides a shot blasting machine 100, which includes: a cleaning mechanism 10, a rolling mechanism 20, a feeding mechanism 30, a discharging mechanism 40, and a collecting trough 50.

[0022] The cleaning mechanism 10 has an inlet 11 and an outlet 12 penetrating through it. A cleaning chamber 13 extending along a first direction F1 is formed between the inlet 11 and the outlet 12. A motor 21 and a throwing head 14 are fixedly connected to the cleaning mechanism 10. The rolling mechanism 20 is located inside the cleaning mechanism 10, between the inlet 11 and the outlet 12, and is connected to the output shaft of the motor 21. The rolling mechanism 20 has a track 22 and several guide edges 23 extending along a second direction F2 and perpendicular to the surface of the track 22. The feeding mechanism 30 is located on the side of the inlet 11 away from the rolling mechanism 20. The feeding mechanism 30 includes a feeding pipe 31 extending into the inlet 11 and along a third direction F3, and a first vibration mechanism 32 fixedly connected to the feeding pipe 31. The discharge mechanism 40 is located on the side of the discharge port 12 away from the rolling mechanism 20. The discharge mechanism 40 includes a discharge pipe 41 extending into the discharge port 12 and also extending along a third direction F3, and a second vibration mechanism 42 fixedly connected to the discharge pipe 41. The surface of the discharge pipe 41 is provided with a first filter screen 41A, and a collection pipe 41B communicating with the first filter screen 41A and fixed to the discharge pipe 41. The collection tank 50 is fixedly connected to the cleaning mechanism 10 and is located on the side of the cleaning chamber 13 away from the throwing head 14. The collection tank 50 is connected to the collection pipe 41B. The second direction F2 forms an obtuse angle with the movement direction of the surface of the rolling mechanism 20. After the workpiece enters the cleaning chamber 13, the blasting head 14 sprays shot into the cleaning chamber 13 to clean the workpiece. The output shaft of the motor 21 drives the rolling mechanism 20 to rotate. The guide edge 23 flips the workpiece and continuously guides the workpiece to move along the first direction F1 along the second direction F2. The shot falling into the discharge pipe 41 passes through the first filter screen 41A and the collection pipe 41B in sequence and enters the collection tank 50.

[0023] The cleaning mechanism 10 is a crucial component of the shot blasting machine 100 for cleaning workpieces. It has an inlet 11 and an outlet 12 at opposite ends of its surface. The connection direction between the inlet 11 and outlet 12 is denoted as the first direction F1, which is the main direction for workpiece transport. Inside the cleaning mechanism 10, between the inlet 11 and outlet 12, a cleaning chamber 13 is formed, connecting the inlet 11 and outlet 12 along the first direction F1. Above the housing 51 of the cleaning mechanism 10, a motor 21 and three shot-throwing heads 14 are installed. The throwing area of ​​the shot-throwing heads 14 passes through the housing 51 of the cleaning mechanism 10 and directly connects to the cleaning chamber 13 below, for throwing shot downwards at multiple angles. A rolling mechanism 20 is installed in the cleaning chamber 13. The power input shaft of the rolling mechanism 20 is connected to the output shaft of the aforementioned motor 21 via a sprocket and chain 29, and is thus driven by the motor 21. The rolling mechanism 20 includes a closed-loop semi-circular track 22. The track 22 moves perpendicular to the first direction F1. A portion of the track 22 extends to a horizontally above position in the cleaning chamber 13 to repeatedly roll workpieces tumbled there back onto the track 22. The rolling mechanism 20 also includes guide edges 23 integrally formed vertically on the bearing surface of the track 22. These guide edges 23 extend along a second direction F2 that is oblique to the first direction F1. The second direction F2 is intentionally designed to form an obtuse angle with the direction of movement of the track 22 surface to guide the workpiece in a gradual directional movement along the first direction F1 within the rolling mechanism 20. The feeding mechanism 30 is arranged on the side of the cleaning mechanism 10 away from the rolling mechanism 20 at the inlet 11. The feeding mechanism 30 includes a feeding pipe 31, one end of which extends into the inlet 11 of the cleaning mechanism 10, and its main body extends along a third direction F3 at a certain acute angle to the ground. A first vibration mechanism 32 is fixedly connected to the lower part of the feeding pipe 31 to provide vibration force to the feeding pipe 31. Based on the inclined design of the feeding pipe 31, the feeding pipe 31 uses gravity to directionally shake the workpiece into the inlet 11 during the vibration of the first vibration mechanism 32. The discharge mechanism 40 is symmetrically arranged on the side of the cleaning mechanism 10 away from the rolling mechanism 20. Similar to the feeding mechanism 30, it includes a discharge pipe 41, and a second vibration mechanism 42 is fixedly connected to the lower part of the feeding pipe 31 to provide vibration force to the discharge pipe 41. Based on the inclined design of the discharge pipe 41, the workpiece is shaken out from the discharge port 12 towards the other end of the pipe by gravity during the vibration of the second vibration mechanism 42. In addition, there is a key structural improvement on the discharge pipe 41 compared to the feeding pipe 31, namely, an opening is opened on the bottom part of the pipe wall of the discharge pipe 41 and a first filter screen 41A is installed. A collecting pipe 41B is welded to the outer wall of the discharge pipe 41, and its inlet is directly connected to the area where the first filter screen 41A is located.The shot blasting machine 100 also has a collection trough 50 located below the cleaning chamber 13, with its opening precisely positioned directly below the cleaning chamber 13. The collection trough 50 is connected to the collection pipe 41B on the discharge pipe 41 via an independent pipe, forming a shot recovery channel. During operation, the workpiece is first fed into the feeding pipe 31. The first vibration mechanism 32 is activated, forcing the feeding pipe 31 in contact with it to also generate high-frequency micro-amplitude vibration. This vibration effectively shakes the workpiece and pushes it in a directional direction F3, allowing the workpiece to enter the cleaning chamber 13 evenly through the inlet 11. After the workpiece falls into the cleaning chamber 13, the nozzle ejects a shot stream into the cleaning chamber 13. The workpiece is exposed to the high-speed shot stream for surface cleaning, while most of the shot falls into the inverted trapezoidal opening of the collection trough 50 after treating the workpiece surface and is collected. At the same time, the motor 21 drives the rolling mechanism 20 to operate, and the track 22 begins to rotate cyclically. The guide edge 23 fixed on the track 22 moves accordingly. When the workpiece falls onto the track 22, it is agitated and lifted by the moving guide edge 23, allowing it to tumble fully and ensuring that all surfaces of the workpiece are impacted by the shot, achieving uniform cleaning. Since the guide edge 23 and the track 22 move at an obtuse angle, they generate a component force parallel to the surface of the track 22 and pointing towards the discharge port 12 when in contact with the workpiece. This component force continuously acts on the workpiece, causing it to gradually move towards the discharge port 12 along the second direction F2 during repeated falling and lifting, achieving directional movement in the first direction F1 and solving the problem of workpiece backflow and accumulation in the cleaning chamber 13. After cleaning, the workpiece, continuously guided by the guide edge 23, finally falls smoothly from the discharge port 12 into the discharge pipe 41. The second vibration mechanism 42 vibrates the discharge pipe 41, smoothly conveying the workpiece out of the shot blasting machine 100. During the operation of the shot blasting machine 100, some shot inevitably enters the discharge pipe 41 along with the workpiece, or leaks from the cleaning chamber 13 into the discharge pipe 41. The first filter screen 41A and the collection pipe 41B allow the dense, small shot to continue moving forward during vibration, and under the action of vibration and gravity, it is screened through the first filter screen 41A and falls into the collection pipe 41B connected to it. These separated shot then flow back to the collection tank 50 below through the collection pipe 41B and connecting pipes, completing the internal circulation and recovery of the shot, and preventing the shot from being carried out of the shot blasting machine 100 with the workpiece or leaking from the discharge port 12 into the discharge pipe 41.

[0024] More preferably, the first vibration mechanism 32 includes a first base 32A, a first bracket 32B located between the first base 32A and the feeding pipe 31, with one end spring-connected to the first base 32A and the other end abutting against the feeding pipe 31, a first support plate 32C fixedly connected to the first bracket 32B, and a first vibrator 32D fixedly connected to the first support plate 32C and located on the side of the first support plate 32C away from the first base 32A.

[0025] The first base 32A rests against the ground. A first support 32B is installed in the space between the first base 32A and the feeding pipe 31. The lower end of the first support 32B is elastically connected to the first base 32A via a set of springs, while its upper end rigidly abuts against and supports the feeding pipe 31 above. A first support plate 32C is welded to the middle portion of the first support 32B. The surface of the first support plate 32C extends along a third direction F3. A first vibrator 32D is installed above the first support plate 32C.

[0026] More preferably, after the first vibrator 32D is started, the vibration force is transmitted sequentially through the first support plate 32C and the first bracket 32B to the feeding pipe 31, so as to shake the workpiece into the inlet 11 along the feeding pipe 31. When the first vibrator 32D vibrates, the first base 32A buffers the vibration force transmitted to the first bracket 32B.

[0027] When the first vibrator 32D is activated, the high-frequency, low-amplitude vibration force it generates does not act directly on the feeding pipe 31, but is first transmitted to the first support plate 32C, which is rigidly connected to it. The first support plate 32C acts as a force transmission platform, evenly distributing the vibration force throughout the entire first bracket 32B. Subsequently, the vibration force is efficiently transmitted to the feeding pipe 31 through the upper end of the first bracket 32B, driving the feeding pipe 31 and the workpiece inside to produce directional vibration, thereby achieving directional feeding of the workpiece into the inlet 11. During this process, the spring assembly connected between the lower end of the first bracket 32B and the first base 32A plays a buffering and vibration isolation role, ensuring that the first bracket 32B and the feeding pipe 31 vibrate freely within a predetermined amplitude, ensuring normal workpiece feeding, and also absorbing most of the vibration force from the first vibrator 32D, reducing the vibration force transmitted to the first base 32A.

[0028] More preferably, the second vibration mechanism 42 includes a second base 42A, a second bracket 42B located between the second base 42A and the discharge pipe 41, with one end spring-connected to the second base 42A and the other end abutting against the discharge pipe 41, a second support plate 42C fixedly connected to the second bracket 42B, and a second vibrator 42D fixedly connected to the second support plate 42C and located on the side of the second support plate 42C away from the second base 42A.

[0029] The second base 42A rests against the ground, and a second bracket 42B is installed in the space between the second base 42A and the discharge pipe 41. The lower end of the second bracket 42B is elastically connected to the second base 42A via a set of springs, while its upper end directly and rigidly abuts against and supports the discharge pipe 41 above. A second support plate 42C is welded to the middle part of the second bracket 42B, and the surface of the second support plate 42C extends along the third direction F3. The second vibrator 42D is installed and fixed above the second support plate 42C.

[0030] More preferably, after the second vibrator 42D is started, the vibration force is transmitted sequentially through the second support plate 42C and the second bracket 42B to the discharge pipe 41, so as to shake the workpiece out of the discharge port 12 along the discharge pipe 41. When the second vibrator 42D vibrates, the second base 42A buffers the vibration force transmitted to the second bracket 42B.

[0031] When the second vibrator 42D is activated, the generated high-frequency, low-amplitude vibration force is first transmitted to the second support plate 42C, and then sequentially transmitted through the second support plate 42C and the second bracket 42B to the discharge pipe 41, driving the discharge pipe 41 and the workpiece inside to produce directional vibration, thereby enabling the workpiece to be shaken out of the discharge port 12 from the discharge pipe 41. During this process, the spring assembly connecting the lower end of the second bracket 42B and the second base 42A also plays a role in buffering and vibration isolation, reducing the vibration force transmitted to the second base 42A.

[0032] More preferably, the rolling mechanism 20 further includes a drive shaft 24, a first driven shaft 25, and a second driven shaft 26 that respectively contact the inner ring of the track 22. The first driven shaft 25 and the second driven shaft 26 are rotatably connected to the cleaning mechanism 10. A first sprocket 27 is fixedly connected to the output shaft of the motor 21, and a second sprocket 28 is fixedly connected to the drive shaft 24. A chain 29 meshes between the first sprocket 27 and the second sprocket 28. When the motor 21 is started, the first sprocket 27 drives the second sprocket 28 to rotate, thereby driving the drive shaft 24.

[0033] The rolling mechanism 20 includes a closed-loop track 22. The surface of the track 22 is formed by several elongated flat metal plates spaced apart, and each elongated metal plate has an integrally formed guide edge 23. The inner ring of the track 22 tightly abuts against a drive shaft 24, a first driven shaft 25, and a second driven shaft 26. The shaft surfaces of these three shafts are provided with several splines, each spline being used to embed into the gaps on the surface of the track 22, further improving the linkage stability between the three shafts and the track 22. The drive shaft 24 directly provides power to the track 22, allowing the track 22 to rotate with the drive shaft 24. The main function of the other two driven shafts, the first driven shaft 25 and the second driven shaft 26, is to support and tension the track 22. Both ends of the first driven shaft 25 and the second driven shaft 26 are rotatably connected to the side wall of the housing 51 of the cleaning mechanism 10 via bearing seats, ensuring their flexible rotation. The power for the drive shaft 24 comes from a motor 21 fixedly connected to the cleaning mechanism 10. A first sprocket 27 is fixedly mounted on the output shaft of motor 21. Correspondingly, a second sprocket 28 is fixedly mounted on the end of drive shaft 24. The first sprocket 27 and the second sprocket 28 are engaged by a closed chain 29. When motor 21 starts, its output shaft drives the first sprocket 27 to rotate. The rotational motion of the first sprocket 27 is precisely transmitted to the second sprocket 28 through the engaged chain 29, thereby driving the drive shaft 24 to rotate synchronously. Due to the key fit between the drive shaft 24 and the inner surface of the track 22, the rotating drive shaft 24 effectively drives the entire track 22 to circulate.

[0034] More preferably, the inlet 11 and outlet 12 abut against both sides of the track 22, and the abutment area is located between the drive shaft 24 and the second driven shaft 26, so as to tension the track 22.

[0035] The inlet 11 and outlet 12 on the cleaning mechanism 10 do not maintain a safe distance from the central track 22. Instead, each outlet has an annular protrusion extending towards the cleaning chamber 13. The outer surface of the protrusion rests against the two side edges of the track 22, abutting against the section of track 22 between the drive shaft 24 and the second driven shaft 26. The track 22 must maintain appropriate tension during operation to effectively transmit power and prevent deviation. When the hard edges of the inlet 11 and outlet 12 apply constraint to the track 22 from both sides, it essentially provides a reverse support force on both sides when the track 22 attempts to loosen. This arrangement is equivalent to setting tensioning blocks on both sides of a portion of the working section of the track 22, thus achieving a tensioning effect.

[0036] More preferably, the shot blasting machine 100 further includes a lifting mechanism 60 and a dust removal mechanism 70.

[0037] The lifting mechanism 60 is fixedly connected to the cleaning mechanism 10. The dust removal mechanism 70 is fixedly connected to the lifting mechanism 60 and is located on the side of the dust removal mechanism 70 away from the cleaning mechanism 10. The dust removal mechanism 70 is provided with a plurality of filter elements 71. One end of the dust removal mechanism 70 is connected to a fan 72, and the other end away from the fan 72 is connected to the lifting mechanism 60 via a pipe.

[0038] The housing 51 of the lifting mechanism 60 is fixedly connected to the rear of the cleaning mechanism 10. A closed-loop drive chain 29 arranged vertically is installed within the housing 51, with multiple hoppers for carrying shot installed at equal intervals on the chain 29. A motor 21 is also installed above the housing 51, driving the chain 29 via its output shaft and sprocket, and further driving the hoppers on the chain 29 to perform cyclic lifting and lowering movements. The bottom of the lifting mechanism 60 has an inlet connected to the collection trough 50, used to lift the shot collected in the collection trough 50 to a higher position via the hoppers. The dust removal mechanism 70 is fixedly installed behind the lifting mechanism 60. The dust removal mechanism 70 contains multiple precisely arranged cylindrical filter elements 71, which constitute the core of the filtration system. At one end of the dust removal mechanism 70, a fan 72 for generating negative pressure is connected via a pipe, while the other end is connected to the top of the shot separator 80 via a sealed pipe. Used shot and impurities collected from the collection tank 50 enter the feed inlet at the bottom of the lifting mechanism 60. The motor 21 is started, driving the chain 29 via a sprocket. A hopper fixed to the chain 29 collects the mixture in the descending section and conveys it vertically upwards in the lifting section. Upon reaching the top, the hopper passes around the head wheel, and under the action of centrifugal force and gravity, throws the shot and impurities out of the discharge port 12, allowing them to enter the shot separator 80 below for processing and sorting. Throughout the shot blasting and shot conveying process, the blower 72 operates continuously, creating a stable negative pressure airflow within the dust removal mechanism 70. This airflow draws dust from the shot blasting machine 100 and some impurities from the shot into the dust removal mechanism 70 through connecting pipes. When the dust-laden air passes through the cylindrical filter element 71, the dust particles inside are blocked on the outer surface of the filter element 71, while clean air penetrates the filter element 71 and is finally discharged by the blower 72.

[0039] More preferably, the collection tank 50 includes: a housing 51, a second filter 52, and a screw conveyor 53.

[0040] The second filter screen 52 is fixedly connected to the housing 51 and is located between the housing 51 and the rolling mechanism 20. The screw conveyor 53 is located inside the housing 51 and on the side of the second filter screen 52 opposite to the rolling mechanism 20. The screw conveyor 53 is rotatably connected to the lifting mechanism 60, and the lifting mechanism 60 drives the blades of the screw conveyor 53 to rotate, pushing the projectiles in the collection trough 50 toward the lifting mechanism 60.

[0041] The housing 51 serves as the main container of the collection tank 50, with its top opening directly facing the rolling mechanism 20 above. The housing 51 also has a side opening to receive projectiles from the collection pipe 41B, allowing the projectiles to flow into the housing 51. The second filter 52 is positioned below the conveyor belt 22, horizontally fixed to the top opening of the housing 51, precisely between the housing 51 and the rolling mechanism 20, serving as the pathway for projectiles and impurities to fall into the collection tank 50 housing 51. Below the second filter 52, a screw conveyor 53 is horizontally installed. The axis of the screw conveyor 53 is aligned with the direction in which the projectiles need to be transported to the lifting mechanism 60. The rotating shaft of the screw conveyor 53 engages with the chain 29 in the lifting mechanism 60 via a sprocket, achieving a rotatable connection. The rotation direction of the screw conveyor 53 is also determined by the movement direction of the chain 29. The mixture of used projectiles, fine scale, dust, etc., falling from the cleaning chamber 13 first impacts the second filter 52. The second filter screen 52 acts as a preliminary screening barrier, its core function being interception and filtration. It allows smaller, intact projectiles and fine impurities to fall through the mesh into the lower part of the housing 51, while effectively blocking any large pieces of workpiece or abnormal debris that may occasionally fall, preventing potential jamming or damage to the subsequent screw conveyor 53 or elevator, thus providing protection. When the mixture of projectiles and fine debris passing through the second filter screen 52 gathers at the bottom of the housing 51 and the elevator mechanism 60 is activated, the movement of the chain 29 synchronously drives the blades of the screw conveyor 53 to rotate. The rotating blades act like a continuous pusher, smoothly and continuously pushing the projectile mixture gathered at the bottom along the channel at the bottom of the collection trough 50 towards the feed inlet of the elevator mechanism 60.

[0042] More preferably, the shot blasting machine 100 further includes a shot separator 80.

[0043] The shot separator 80 is fixedly connected to the cleaning mechanism 10 and is located on the side of the cleaning chamber 13 opposite to the collection tank 50. The shot separator 80 is connected to the blasting head 14 and the lifting mechanism 60 respectively. The shot in the collection tank 50 is transported back to the shot separator 80 through the lifting mechanism 60 for recycling.

[0044] The mixture of shot, scale, and dust, collected from the collection tank 50 and vertically conveyed to the top by the lifting mechanism 60, is continuously fed into the feed inlet of the shot separator 80. The mixture is first evenly distributed through an internal device, forming a uniform curtain-like flow. The feed inlet of the shot separator 80 is also connected to a dust removal mechanism 70 via a pipeline for drawing in dust from the mixture and filtering it through the filter element 71.

[0045] Therefore, by providing a first filter screen 41A in the discharge pipe 41 and a collection pipe 41B connecting the first filter screen 41A and the collection trough 50, the projectiles falling into the discharge pipe 41 can pass through the first filter screen 41A and the collection pipe 41B in sequence and enter the collection trough 50, thus preventing the projectiles from leaking out of the discharge pipe 41. Furthermore, by using a vertical guide edge 23 extending along the second direction F2 on the track 22 of the rolling mechanism 20, and with the second direction F2 forming an obtuse angle with the movement direction of the surface of the rolling mechanism 20, when the workpiece is tumbled by the guide edge 23 in the rolling mechanism 20, it can continuously move along the first direction F1 towards the discharge port 12 under the guidance of the guide edge 23, preventing the workpiece from repeatedly tumbling inside the drum and causing workpiece accumulation.

[0046] The embodiments described above are merely examples of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these modifications and improvements all fall within the protection scope of this application.

Claims

1. A shot blasting machine, characterized in that, The shot blasting machine includes: A cleaning mechanism is provided with an inlet and an outlet that pass through the cleaning mechanism, and a cleaning chamber extending in a first direction is formed between the inlet and the outlet. A motor and a shovel are fixedly connected to the cleaning mechanism. A rolling mechanism is located inside the cleaning mechanism and between the inlet and outlet, and is connected to the output shaft of the motor. The rolling mechanism is provided with a track and a plurality of guide edges extending along a second direction and perpendicular to the track surface. A feeding mechanism is located on the side of the inlet away from the rolling mechanism. The feeding mechanism includes a feeding tube that extends into the inlet and extends in a third direction, and a first vibration mechanism that is fixedly connected to the feeding tube. The discharge mechanism is located on the side of the discharge port away from the rolling mechanism. The discharge mechanism includes a discharge pipe that extends into the discharge port and also extends in a third direction, and a second vibration mechanism that is fixedly connected to the discharge pipe. The surface of the discharge pipe is provided with a first filter screen, and a collection pipe that communicates with the first filter screen and is fixed on the discharge pipe. A collection tank is fixedly connected to the cleaning mechanism and located on the side of the cleaning chamber away from the throwing head. The collection tank is connected to the collection pipe. Wherein, the second direction forms an obtuse angle with the movement direction of the surface of the rolling mechanism. After the workpiece enters the cleaning chamber, the blasting head sprays shot into the cleaning chamber to clean the workpiece. The output shaft of the motor drives the rolling mechanism to rotate. The guide edge flips the workpiece and continuously guides the workpiece to move along the first direction along the second direction. The shot falling into the discharge pipe passes through the first filter screen and the collection pipe in sequence and enters the collection tank.

2. The shot blasting machine according to claim 1, characterized in that, The first vibration mechanism includes a first base, a first bracket located between the first base and the feeding pipe, with one end spring-connected to the first base and the other end abutting against the feeding pipe, a first support plate fixedly connected to the first bracket, and a first vibrator fixedly connected to the first support plate and located on the side of the first support plate away from the first base.

3. A shot blasting machine according to claim 2, characterized in that, After the first vibrator is started, the vibration force is transmitted to the feeding pipe through the first support plate and the first bracket in sequence, so as to shake the workpiece into the inlet along the feeding pipe; When the first vibrator vibrates, the first base buffers the vibration force transmitted to the first support.

4. A shot blasting machine according to claim 1, characterized in that, The second vibration mechanism includes a second base, a second bracket located between the second base and the discharge pipe, with one end spring-connected to the second base and the other end abutting against the discharge pipe, a second support plate fixedly connected to the second bracket, and a second vibrator fixedly connected to the second support plate and located on the side of the second support plate away from the second base.

5. A shot blasting machine according to claim 4, characterized in that, After the second vibrator is started, the vibration force is transmitted to the discharge pipe through the second support plate and the second bracket in sequence, so as to shake the workpiece out of the discharge port along the discharge pipe; When the second vibrator vibrates, the second base buffers the vibration force transmitted to the second support.

6. A shot blasting machine according to claim 1, characterized in that, The rolling mechanism also includes a drive shaft, a first driven shaft, and a second driven shaft that respectively contact the inner ring of the track; The first driven shaft and the second driven shaft are rotatably connected to the cleaning mechanism. A first sprocket is fixedly connected to the output shaft of the motor, and a second sprocket is fixedly connected to the drive shaft. A chain meshes between the first sprocket and the second sprocket. When the motor starts, the first sprocket drives the second sprocket to rotate, thereby driving the drive shaft.

7. A shot blasting machine according to claim 6, characterized in that, The inlet and outlet respectively abut against both sides of the track, and the abutment area is located between the drive shaft and the second driven shaft to tension the track.

8. A shot blasting machine according to claim 1, characterized in that, The shot blasting machine also includes: The lifting mechanism is fixedly connected to the cleaning mechanism; A dust removal mechanism is fixedly connected to the lifting mechanism and located on the side of the dust removal mechanism away from the cleaning mechanism; The dust removal mechanism is equipped with several filter elements. One end of the dust removal mechanism is connected to a fan, and the other end, away from the fan, is connected to the lifting mechanism.

9. A shot blasting machine according to claim 8, characterized in that, The collection tank includes: case, The second filter screen is fixedly connected to the housing and located between the housing and the rolling mechanism; A screw conveyor is located inside the housing and on the side of the second filter screen opposite to the rolling mechanism; The screw conveyor is rotatably connected to the lifting mechanism, which drives the blades of the screw conveyor to rotate and pushes the projectiles in the collection trough toward the lifting mechanism.

10. A shot blasting machine according to claim 9, characterized in that, The shot blasting machine also includes: A shot separator is fixedly connected to the cleaning mechanism and is located on the side of the cleaning chamber away from the collection tank. The shot separator is connected to the pipelines of the blasting head and the lifting mechanism. The shot in the collection tank is transported back to the shot separator through the lifting mechanism for recycling.

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