Workpiece shifting structure of mesh belt shot blasting machine
By using a conical roller structure in the mesh belt shot blasting machine, the bottom of the workpiece is exposed to the direct blow of the shot blasting material, the problem of cleaning blind spots caused by mesh belt shading is solved, and the workpiece is comprehensively cleaned.
Patent Information
- Application Number
- CN202411609923.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-12
- Publication Date
- 2025-02-14
AI Technical Summary
In the mesh belt shot blasting machine, since the bottom of the workpiece is blocked by the mesh belt, the shot blasting material is difficult to touch and clean, forming a blind spot for cleaning, affecting the overall cleaning effect.
The tapered roller structure is adopted to gradually lift the mesh belt in part of the shot blasting chamber, forming an inclined situation with different heights on both sides. The workpiece naturally creeps under the dual action of gravity and the inclination of the mesh belt, exposing the bottom area for shot blasting. Clean the scraps.
It effectively solves the problem of cleaning blind spots caused by mesh tape blocking at the bottom of the workpiece, realizes comprehensive and thorough cleaning of the workpiece, and improves cleaning efficiency.
Smart Images
Figure CN119427223A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field related to metal surface treatment, and in particular to a workpiece displacement structure of a mesh belt shot blasting machine. Background Art
[0002] The mesh belt shot blasting machine is a surface cleaning device that combines high efficiency, precision and wide applicability. Its core working principle is to use a high-speed rotating shot blaster to project dense and powerful projectiles onto the surface of the workpiece. These projectiles are like countless tiny impact hammers, accurately striking and peeling off the microscopic protrusions, irregular shapes and attachments on the surface of the workpiece, including but not limited to shrinkage cavities and loose structures in castings, oxide scales on the surface of forgings, and burrs and uneven areas generated during welding. This process not only significantly improves the surface finish and roughness of the workpiece, but also enhances the adhesion and durability of subsequent coating, electroplating and other processes.
[0003] In modern production lines, mesh belt shot blasting machines achieve continuous and automated feeding and discharging of workpieces through their built-in mesh belt conveyor system. Workpieces are placed steadily on the mesh belt and enter the closed shot blasting chamber one by one for cleaning as the mesh belt moves at a constant speed. The shot blasting array designed in the shot blasting chamber mainly uses vertical up and down spraying as the main method. This layout not only simplifies the equipment structure, but also significantly improves the cleaning efficiency because the shot blasting fragments can hit the workpiece surface in a straight line. Compared with other complex reflection or refraction projection methods, vertical spraying reduces energy loss and ensures that each projectile can maximize its cleaning effect.
[0004] However, in actual applications, since the bottom of the workpiece runs close to the mesh belt, this area is easily physically blocked by the mesh belt structure during the shot blasting process. Although the shot blasting debris is ejected upward at a very high speed, some of the debris may still be blocked by the mesh belt conveyor and cannot fully reach and clean the tiny corners at the bottom of the workpiece. In this case, the bottom of the workpiece may not be cleaned thoroughly or there may be "dead corners", affecting the overall cleaning effect. Summary of the invention
[0005] The present application proposes a workpiece displacement structure of a mesh belt shot blasting machine, which has the advantage of timely creeping of the workpiece, and is used to solve the problem of cleaning dead corners caused by mesh belt blocking the bottom of the workpiece during the shot blasting process mentioned in the above background technology.
[0006] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: a workpiece displacement structure of a mesh belt shot blasting machine, comprising: a shot blasting machine body, wherein a shot blasting chamber is arranged inside, and shot blasting mechanisms are arranged on the upper and lower parts of the shot blasting chamber, and the shot blasting mechanism can quickly eject shot blasting fragments; a driving roller seat, which is arranged on one side of the shot blasting machine body, and a mesh belt is connected to the outer side of the driving roller seat, and a workpiece is placed on the surface of the mesh belt; a conical roller, which is movably installed on the inner side of the shot blasting machine body, and the conical roller makes a height difference between the left and right sides of the mesh belt. When the workpiece approaches the conical roller, the workpiece creeps toward the lower side of the mesh belt, and the displacement of the workpiece will directly expose the blocked part, which is easy to clean the bottom of the workpiece by the shot blasting fragments.
[0007] Furthermore, the left and right sides are symmetrically arranged on the outside of the workpiece. When the workpiece is relatively tilted due to the influence of the tapered roller, the left and right sides and the shot blasting fragments sprayed by the shot blasting mechanism are opposite to each other, thereby cleaning the left and right sides of the outside of the workpiece.
[0008] Furthermore, the front and rear sides are symmetrically arranged on the outside of the workpiece, and the front and rear sides and the left and right sides are perpendicular to each other. A rotation-increasing boss is fixedly connected to the outside of the conical roller, and the front and rear ends of the workpiece are relatively tilted due to the pushing of the rotation-increasing boss, so that the front and rear sides and the shot blasting fragments ejected by the shot blasting mechanism are relative.
[0009] Furthermore, one end of the tapered roller is movably connected to the inner side of the shot blasting machine body by a supporting cradle, and the other end of the tapered roller moves up and down along a guide groove opened on the inner side of the shot blasting machine body. An adjusting screw is threadedly connected to the inner side of the shot blasting machine body, and the top of the adjusting screw contacts the outer side of the tapered roller.
[0010] Furthermore, a limited stop seat is arranged on the outer side of the tapered roller, and the top of the adjusting screw rod is pressed against the limited stop seat.
[0011] Furthermore, one end of the limit stopper is hemispherical, and the other end is a straight surface.
[0012] Furthermore, mesh grooves are provided on the surface of the mesh belt, and the mesh grooves can push the rotation-increasing protrusion to rotate.
[0013] Furthermore, the length of the mesh groove is - times the length of the rotation-increasing convex seat.
[0014] Furthermore, a conductive ring is fixedly installed at the end of the tapered roller, a coil is fixedly installed on the outer side of the rotation-increasing convex seat, and a conductive sheet located between the limit stops is fixedly installed on the side of the tapered roller.
[0015] Furthermore, the controller adjusts the intensity of the current flowing through the coil, thereby controlling the coil to generate magnetic fields of different intensities.
[0016] The present invention has the following beneficial effects:
[0017] The present application provides a workpiece displacement structure of a mesh belt shot blasting machine, which gradually lifts the mesh belt in a part of the shot blasting chamber through a conical roller, forming an inclined state with different heights on both sides. After the workpiece to be cleaned is sent into the shot blasting chamber, as the mesh belt is continuously conveyed, the workpiece naturally creeps slowly along the mesh belt to the lower side under the dual effects of gravity and the mesh belt inclination.
[0018] This design not only realizes the dynamic displacement of the workpiece during the shot blasting process, but more importantly, it cleverly solves the problem of the bottom of the workpiece being blocked by the mesh belt in the traditional shot blasting machine. As the workpiece creeps, the bottom of the workpiece, which was originally tightly fitted by the mesh belt, is gradually exposed to the direct impact of the shot blasting mechanism, allowing the shot blasting debris to impact and clean these hard-to-reach areas without hindrance.
[0019] In addition, by continuously adjusting the inclination angle of the tapered roller and the conveying speed of the mesh belt, the creeping speed and cleaning path of the workpiece can be further optimized to ensure that each workpiece can be fully and thoroughly cleaned. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The accompanying drawings, which constitute a part of the specification, illustrate embodiments disclosed in the present application and, together with the description, serve to explain the principles disclosed in the present application.
[0021] The present application can be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:
[0022] Figure 1 It is a schematic diagram of the overall external three-dimensional structure;
[0023] Figure 2 It is a schematic diagram of the overall internal planar cross-sectional structure;
[0024] Figure 3 It is a schematic diagram of the overall top view structure;
[0025] Figure 4 This is a schematic diagram of the three-dimensional structure of the tapered roller installation part;
[0026] Figure 5 It is a schematic diagram of the plane structure of the tapered roller end;
[0027] Figure 6 It is a schematic diagram of the three-dimensional structure of the tapered roller;
[0028] Figure 7 This is a schematic diagram of the movement state of the workpiece after being obstructed.
[0029] In the figure: 1, shot blasting machine body; 100, shot blasting mechanism; 101, guide groove; 2, driving roller seat; 3, mesh belt; 300, mesh groove; 4, workpiece; 400, left and right sides; 401, front and rear sides; 5, tapered roller; 500, supporting cradle; 6, limit stop seat; 7, conductive sheet; 8, adjusting screw; 9, rotation-increasing cam; 10, coil; 11, conductive ring. DETAILED DESCRIPTION
[0030] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0031] Embodiment 1
[0032] See also Figure 1 and Figure 2 It can be clearly seen that a shot blasting chamber is provided inside the shot blasting machine body 1, and shot blasting mechanisms 100 are vertically arranged at the upper and lower parts of the shot blasting chamber, and the shot blasting mechanism 100 can be used to quickly eject the shot blasting fragments. A driving roller seat 2 is provided on one side of the shot blasting machine body 1, and a mesh belt 3 passing through the shot blasting chamber is connected to the outer side of the driving roller seat 2. Generally, the driving roller seat 2 is driven by a motor, so that the mesh belt 3 rotates. Figure 2 and Figure 3 It can be clearly seen that a workpiece 4 located on one side of the shot blasting machine body 1 is placed on the surface of the mesh belt 3. After the workpiece 4 is transported to the shot blasting room by the mesh belt 3, the shot blasting mechanism 100 is used to place the shot blasting fragments on the upper and lower surfaces of the workpiece 4, so as to achieve surface processing of the workpiece 4.
[0033] Generally speaking, in order to prevent the mesh belt 3 from collapsing due to the placement of the workpiece 4 during the conveying process, Figure 2 It can be seen that a circular roller located inside the mesh belt 3 is movably installed in the driving roller seat 2 to ensure that the mesh belt 3 has sufficient supporting strength. Figure 2 and Figure 4 It can be seen that a conical roller 5 is movably installed inside the shot blasting machine body 1, and the conical roller 5 is located in the shot blasting chamber. The shortest diameter part of the conical roller 5 is arranged at the same height as the circular roller, and the largest end of the conical roller 5 will directly touch one side of the mesh belt 3, thereby lifting one side of the mesh belt 3.
[0034] In the specific implementation, the workpiece 4 is placed on the mesh belt 3, and the driving roller seat 2 is driven by the motor to make the mesh belt 3 rotate clockwise. Figure 2It can be seen that the mesh belt 3 moves the workpiece 4 from the left side to the shot blasting chamber of the shot blasting machine body 1, and the shot blasting fragments ejected by the shot blasting mechanism 100 hit the upper and lower surfaces of the workpiece 4, thereby cleaning the surface of the workpiece 4.
[0035] Furthermore, due to the presence of the tapered roller 5, there is a height difference between the left and right sides of the mesh belt 3. When the workpiece 4 approaches the tapered roller 5, it will creep toward the lower side of the mesh belt 3. During this process, the workpiece 4 will move relatively on the mesh belt 3. Since the contact area between the workpiece 4 and the mesh belt 3 is not easily directly contacted by the shot blasting debris below, when the workpiece 4 is displaced, the blocked part will be directly exposed, making it easier for the shot blasting debris to clean the bottom of the workpiece 4. At the same time, combined with Figure 3 It can be seen that the left and right side parts 400 are symmetrically arranged on the outside of the workpiece 4, and the left and right side parts 400 are relatively parallel to the side parts of the mesh belt 3. Taking this as an example, when the workpiece 4 is relatively tilted due to the influence of the tapered roller 5, the left and right side parts 400 will also be tilted. Since the shot peening mechanism 100 always sprays vertically up and down, when the workpiece 4 tilts, the left and right side parts 400 and the shot peening fragments sprayed by the shot peening mechanism 100 will be opposite to each other, and the left and right side parts 400 on the outside of the workpiece 4 will be further cleaned, so as to ensure that the vertically sprayed shot peening fragments can fully clean the left and right side parts 400, thereby enhancing the cleaning strength of the workpiece 4.
[0036] On this basis, combined with Figure 3 It can be seen that the front and rear side parts 401 are symmetrically arranged on the outside of the workpiece 4, and the front and rear side parts 401 and the left and right side parts 400 are perpendicular to each other. Since the workpiece 4 can be deflected left and right by the inclination of the tapered roller 5, the left and right side parts 400 can be fully cleaned, but the front and rear side parts 401 are still not easy to be cleaned by the vertically ejected shot blasting debris. In order to solve this problem, reference is made to Figure 6 It can be seen that a plurality of equally spaced rotation-increasing bosses 9 are fixedly connected to the outside of the tapered roller 5, and the rotation-increasing bosses 9 protrude outward relative to the side of the tapered roller 5. The advantage of this arrangement is that when the workpiece 4 is moved to the outside of the tapered roller 5 due to the conveying of the mesh belt 3, the front and rear ends of the workpiece 4 are pushed by the rotation-increasing bosses 9, causing relative inclination. Consistent with what has been said above, when the workpiece 4 tilts forward and backward, the front and rear side portions 401 and the shot blasting fragments ejected by the shot blasting mechanism 100 are relative to each other, further ensuring comprehensive cleaning of the side of the workpiece 4.
[0037] From the above, it can be seen that when the mesh belt 3 in the present application is used, since the two circular rollers in the shot blasting chamber are replaced with a tapered roller 5 with a rotation-increasing convex seat 9, when the workpiece 4 is transported by the mesh belt 3 into the shot blasting chamber for cleaning, it is directly impacted by the shot blasting mechanism 100 on the upper and lower end faces for large-scale cleaning. At the same time, the tapered roller 5 and the rotation-increasing convex seat 9 force the workpiece 4 to tilt forward and backward / left and right during the transportation process, thereby ensuring that the shot blasting debris ejected by the shot blasting mechanism 100 can clean the side of the workpiece 4, and finally realize the cleaning of the workpiece 4 without dead angles.
[0038] Embodiment 2
[0039] Further improvements are made based on Example 1. Figure 4-Figure 6 It can be clearly seen that the shorter end of the tapered roller 5 is movably connected to the inner side of the shot blasting machine body 1 by means of the support cradle 500. Specifically, the support cradle 500 and the tapered roller 5 can rotate relative to each other, and the support cradle 500 and the shot blasting machine body 1 can deflect up and down, thereby ensuring that when the inclination angle of the tapered roller 5 changes, the support cradle 500 can still accurately define the position of the tapered roller 5. The other end of the tapered roller 5 can only move up and down along the guide groove 101 provided on the inner side of the shot blasting machine body 1, thereby ensuring that when the tapered roller 5 moves up and down along the guide groove 101, the inclination angle of the tapered roller 5 can change.
[0040] More specifically, in order to adjust the inclination angle of the tapered roller 5, an adjusting screw 8 is connected through the inner thread of the shot blasting machine body 1, and the top of the adjusting screw 8 is against the outer side of the tapered roller 5. In actual application, the adjusting screw 8 is manually twisted to change the length of the adjusting screw 8 extending upward, so that the height of the tapered roller 5 pushed by the adjusting screw 8 will change, and the overall inclination angle of the tapered roller 5 will also change. Combined with the content of Example 1, it can be known that when the inclination angle of the tapered roller 5 changes, it will push the height of the left and right sides of the mesh belt 3 in the shot blasting chamber to change, further controlling the creeping speed of the workpiece 4 on the mesh belt 3.
[0041] Embodiment 3
[0042] On the basis of the second embodiment, in order to further increase the creeping speed of the workpiece 4 on the mesh belt 3, please refer to Figure 4-Figure 6 It can be seen that a limited stopper 6 is arranged outside the tapered roller 5 and on the side with the largest diameter at the end, and one end of the limited stopper 6 is hemispherical and the other end is a straight surface. At the same time, the top of the adjusting screw 8 is against the limited stopper 6. Specifically, when the driving roller seat 2 drives the mesh belt 3 to rotate, the mesh belt 3 will cause the tapered roller 5 to rotate counterclockwise, with a reference direction. Figure 5When the conical roller 5 rotates counterclockwise, the adjusting screw 8 will move along the hemispherical end of the limit stop 6 and push the conical roller 5 further upward. When the adjusting screw 8 passes through the straight end of the limit stop 6 and passes over this part, the side of the conical roller 5 is forced to hit the adjusting screw 8 due to the gravity of the conical roller 5 itself and the strength of the mesh belt 3 pressing the conical roller 5 downward. In this way, the conical roller 5 will cause the mesh belt 3 in the shot blasting room to be in an up and down state, thereby forcing the workpiece 4 to intensify its creeping on the mesh belt 3, ensuring that the relative position between the workpiece 4 and the mesh belt 3 is constantly changing, thereby ensuring that the shot peening mechanism 100 can fully clean the bottom of the workpiece 4.
[0043] Embodiment 4
[0044] As a supplement to Example 3, please refer to Figure 1 and Figure 2 It can be seen that mesh grooves 300 are provided on the surface of the mesh belt 3, which can not only ensure that the shot blasting fragments can pass through normally, but also can be connected with the rotation-increasing cam 9 for transmission. Specifically, when the driving roller seat 2 drives the mesh belt 3 to rotate, the mesh grooves 300 can be used to push the rotation-increasing cam 9 to rotate, so as to ensure that when the mesh belt 3 moves, the rotation-increasing cam 9 can make the conical roller 5 rotate synchronously. On the one hand, since the adjusting screw 8 needs to overcome a certain movement resistance when crossing the limit stop seat 6, the transmission of the rotation-increasing cam 9 is used to ensure that the conical roller 5 has sufficient rotation strength; on the other hand, by passing the rotation-increasing cam 9 through the mesh groove 300, the rotation-increasing cam 9 and the workpiece 4 can be directly close to each other, further ensuring that there is a sufficient height difference between the two ends of the front and rear side portions 401, so as to ensure that the workpiece 4 can be stably tilted forward and backward.
[0045] On this basis, combined with Figure 7 It can be clearly seen that the length of the mesh groove 300 is 2-5 times the length of the rotation-increasing boss 9, which enables the conductive sheet 7 to slide a certain distance in the mesh groove 300. Specifically, when the workpiece 4 is placed on the mesh belt 3, the motor drives the roller seat 2 to make the mesh belt 3 transport the workpiece 4 to the shot blasting chamber. In this process, the mesh belt 3 is affected by the tapered roller 5 to cause a height difference on both sides. When the workpiece 4 passes through this area, relative creeping occurs between the workpiece 4 and the mesh belt 3. At the same time, due to the different heights of the left and right sides of the workpiece 4, the workpiece 4 tilts left and right, thereby cleaning the left and right side portions 400.
[0046] Afterwards, when the workpiece 4 continues to move toward the tapered roller 5, Figure 7It can be seen that when the mesh belt 3 moves to the right, the adjustment screw 8 abuts against the side of the tapered roller 5 and is blocked by the limit stop 6, so that the rotation of the tapered roller 5 is blocked. As the mesh belt 3 drives the mesh slot 300 to continue to move to the right, the rotation-increasing convex seat 9 abuts against the workpiece 4, forcing the workpiece 4 and the mesh belt 3 to move relative to each other, thereby further changing the relative position between the workpiece 4 and the mesh belt 3, so that the bottom of the workpiece 4 is further exposed to the shot blasting and crushing area of the shot blasting mechanism 100. Secondly, when the rotation-increasing convex seat 9 abuts against the left side of the mesh slot 300, the mesh belt 3 pushes the rotation-increasing convex seat 9, forcing the rotation-increasing convex seat 9 to drive the tapered roller 5 to have a tendency to rotate. As the rotation intensity of the tapered roller 5 increases, the limit stop 6 on the tapered roller 5 will pass over the adjustment screw 8, and at the same time, the tapered roller 5 will be lifted upward. When the adjusting screw 8 passes over the limit stopper 6, the conical roller 5 will be pressed against the top of the adjusting screw 8 again due to the gravity of the conical roller 5, so that the mesh belt 3 can further drive the workpiece 4 to creep by using the up and down vibration of the conical roller 5. At the same time, when the conical roller 5 drives the rotation-increasing convex seat 9 to rotate, the next rotation-increasing convex seat 9 will reach the bottom of the workpiece 4, so that one end of the workpiece 4 is lifted upward, and the workpiece 4 is tilted forward and backward, so that the front and rear side parts 401 are fully cleaned.
[0047] From the above, it can be seen that, by implementing the fourth embodiment, the rotation-increasing boss 9 can not only promote the relative movement between the mesh belt 3 and the workpiece 4, but also use the rotation-increasing boss 9 to push the workpiece 4, so that the workpiece 4 tilts forward and backward, thereby allowing the side and upper and lower ends of the workpiece 4 to be fully shot blasted and cleaned, thereby further ensuring that the workpiece 4 can be fully cleaned.
[0048] Embodiment 5
[0049] Further improvements are made on the basis of the fourth embodiment. When the traditional shot blasting machine body 1 is working, in order to increase the shot blasting time, the motor is generally used to reduce the rotation speed of the driving roller seat 2, so that the mesh belt 3 moves more slowly in the shot blasting room. However, in actual operation, since the shot blasting fragments ejected by the shot blasting mechanism 100 not only act on the workpiece 4, but also on the mesh belt 3, although modern shot blasting machines are usually designed with wear-resistant parts, long-term high-load operation may still accelerate the wear and aging of the equipment. Therefore, in order to solve this problem, combined with Figure 2 , Figure 4-Figure 6It can be clearly seen that the end of the tapered roller 5 is fixedly installed with a conductive ring 11 located on one side of the support cradle 500. At the same time, a coil 10 electrically connected to the conductive ring 11 is fixedly installed on the outer side of the rotation-increasing boss 9. Correspondingly, a conductive sheet 7 located between the limit stopper 6 is fixedly installed on the side of the tapered roller 5. Since there are multiple groups of rotation-increasing bosses 9 arranged axially on the tapered roller 5, multiple conductive sheets 7 corresponding thereto are also arranged on the end of the tapered roller 5. Specifically, the conductive ring 11 is connected to a power source. When the adjusting screw 8 reaches the outer bottom of the tapered roller 5, the adjusting screw 8 is used to connect the conductive sheet 7 to the power source, thereby realizing that the coil 10 located above the mesh belt 3 is connected. Generally, the current intensity flowing through the coil 10 can be adjusted according to the controller, so as to control the coil 10 to generate magnetic fields of different intensities.
[0050] When applying it in specific Figure 5 It can be seen that when the top of the adjusting screw 8 reaches the outer bottom of the conical roller 5, the adjusting screw 8 and the conductive sheet 7 are electrically connected. Figure 7 As shown, the coil 10 located in the mesh groove 300 in the rotation-increasing boss 9 is in a connected state (the coil 10 mentioned here is not one, but a row of coils 10 in the axial direction of the tapered roller 5), while the other two rotation-increasing bosses 9 are not connected.
[0051] As described in the fourth embodiment, when the mesh belt 3 pushes the conical roller 5 to rotate and moves the next rotation-increasing convex seat 9 to the bottom of the workpiece 4, the adjusting screw 8 will also be connected to the next conductive sheet 7. Correspondingly, the coil 10 attached to the bottom of the workpiece 4 adsorbs the workpiece 4 due to magnetic force. When the mesh belt 3 continues to move to the right, the workpiece 4 is adsorbed on the rotation-increasing convex seat 9, so that the workpiece 4 will not move with the mesh belt 3. When the rotation-increasing convex seat 9 moves to the left side of the mesh slot 300 again, the mesh belt 3 pushes its conical roller 5 to rotate again, and the cycle is repeated, so that the workpiece 4 is slowly pushed forward. In this process, although the movement speed of the mesh belt 3 remains unchanged, the workpiece 4 is attracted by the intermittent magnetic force of the coil 10, forcing the workpiece 4 to move slowly in the shot blasting chamber of the shot blasting machine body 1.
[0052] It can be seen that the fifth embodiment can increase the shot blasting time of the workpiece 4 without reducing the movement speed of the mesh belt 3, thereby reducing the contact between the mesh belt 3 and the shot blasting debris, avoiding the problem of increased wear of the mesh belt 3 under high load, and ultimately extending the service life of the mesh belt 3.
Claims
1. A workpiece displacement structure of a mesh belt shot blasting machine, characterized in that: include: A shot blasting machine body (1) is provided with a shot blasting chamber inside, and shot blasting mechanisms (100) are arranged at the upper and lower parts of the shot blasting chamber, and the shot blasting mechanism (100) can quickly eject shot blasting fragments; A driving roller seat (2) is arranged on one side of the shot blasting machine body (1), and a mesh belt (3) is connected to the outer side of the driving roller seat (2) in a transmission manner, and a workpiece (4) is placed on the surface of the mesh belt (3); The conical roller (5) is movably mounted on the inner side of the shot blasting machine body (1). The conical roller (5) causes a height difference between the left and right sides of the mesh belt (3). When the workpiece (4) approaches the conical roller (5), the workpiece (4) creeps toward the lower side of the mesh belt (3). The displacement of the workpiece (4) directly exposes the shielded part, making it easy for the shot blasting debris to clean the bottom of the workpiece (4).
2. The workpiece displacement structure of the mesh belt shot blasting machine according to claim 1 is characterized in that: The workpiece (4) is symmetrically provided with left and right side portions (400) on the outside. When the workpiece (4) is relatively tilted due to the influence of the conical roller (5), the left and right side portions (400) and the shot blasting fragments ejected by the shot blasting mechanism (100) are opposed to each other, thereby cleaning the left and right side portions (400) on the outside of the workpiece (4).
3. The workpiece displacement structure of the mesh belt shot blasting machine according to claim 2 is characterized in that: The workpiece (4) is symmetrically provided with front and rear side portions (401), and the front and rear side portions (401) and the left and right side portions (400) are perpendicular to each other. A rotation-increasing convex seat (9) is fixedly connected to the outer side of the conical roller (5). The front and rear ends of the workpiece (4) are relatively tilted by the rotation-increasing convex seat (9), so that the front and rear side portions (401) and the shot blasting fragments ejected by the shot blasting mechanism (100) are relatively aligned.
4. The workpiece displacement structure of the mesh belt shot blasting machine according to claim 1 or 3, characterized in that: One end of the tapered roller (5) is movably connected to the inner side of the shot blasting machine body (1) by means of a supporting cradle (500), and the other end of the tapered roller (5) moves up and down along a guide groove (101) provided on the inner side of the shot blasting machine body (1). An adjusting screw (8) is threadedly connected to the inner side of the shot blasting machine body (1), and the top of the adjusting screw (8) abuts against the outer side of the tapered roller (5).
5. The workpiece displacement structure of the mesh belt shot blasting machine according to claim 4, characterized in that: A limited stopper (6) is arranged outside the tapered roller (5), and the top of the adjusting screw rod (8) abuts against the limited stopper (6).
6. The workpiece displacement structure of the mesh belt shot blasting machine according to claim 5, characterized in that: One end of the limit stopper (6) is hemispherical, and the other end is a straight surface.
7. The workpiece displacement structure of the mesh belt shot blasting machine according to claim 5, characterized in that: A mesh groove (300) is provided on the surface of the mesh belt (3), and the mesh groove (300) can push the rotation-increasing convex seat (9) to rotate.
8. The workpiece displacement structure of the mesh belt shot blasting machine according to claim 7, characterized in that: The length of the net groove (300) is 2-5 times the length of the rotation-increasing convex seat (9).
9. The workpiece displacement structure of the mesh belt shot blasting machine according to claim 7, characterized in that: A conductive ring (11) is fixedly mounted on the end of the tapered roller (5), a coil (10) is fixedly mounted on the outer side of the rotation-increasing convex seat (9), and a conductive sheet (7) located between the limit stop seats (6) is fixedly mounted on the side of the tapered roller (5).
10. The workpiece displacement structure of the mesh belt shot blasting machine according to claim 7, characterized in that: The controller adjusts the intensity of the current flowing through the coil (10), thereby controlling the coil (10) to generate magnetic fields of different intensities.