Shot blasting machine

Abstract

The invention discloses a shot blasting machine, and relates to the technical field of shot blasting machines, the shot blasting machine comprises a shot blasting machine body, a maintenance protection plate and an impeller mechanism, the maintenance protection plate comprises a connecting part and a sealing plate, a movable part is slidably arranged at an opening of the connecting part, two groups of clamping pieces are oppositely arranged on the movable part, a buffer pad is slidably arranged between the two groups of clamping pieces, and the sealing plate is arranged on the sealing plate. A plurality of sets of first buffer assemblies are arranged in the connecting part, the first buffer assemblies are movably connected with the movable part through movable rods, each first buffer assembly comprises a fixed shaft fixed to the connecting part through a supporting block, and the fixed shaft is sleeved with two sets of oppositely-arranged movable blocks; a second spring is arranged between the two movable blocks, and a first spring is arranged between each movable block and the adjacent supporting block. The shot blasting machine provided by the invention can buffer the continuous impact force of iron sand on the maintenance protection plate of the shot blasting machine in use, and has the effects of improving the protection property of the maintenance protection plate and prolonging the service life of the maintenance protection plate.

Description

Technical Field

[0001] The present invention relates to the technical field of shot blasting machines, in particular to a shot blasting machine. Background Art

[0002] Shot blasting machine, also known as shot blasting cleaning machine, is a kind of mechanical equipment that uses impact to accelerate steel sand, steel shot or iron sand and other projectiles to a very high speed and throws them out to achieve automatic cleaning. Compared with other surface treatment technologies, it can enhance the surface performance of workpieces and has the advantages of being faster and more effective.

[0003] The patent document with application number CN201921723969.6 discloses a shot blasting machine, including a noise reduction mechanism; the noise reduction mechanism includes a silencer plate arranged on the inner wall of the maintenance guard plate, and a rubber pad is arranged on the side of the silencer plate away from the maintenance guard plate. The silencer plate can reduce the outward propagation of noise, and the rubber pad can reduce the damage of iron sand to the maintenance guard plate and reduce the noise generated by the collision between iron sand and the rubber pad, reduce the noise in the shot blasting machine body from leaking outward, and reduce the noise in the working environment of the shot blasting machine.

[0004] However, the above-mentioned shot blasting machine has the following two problems: First: When the shot blasting machine is working, the iron sand inside it splashes onto the rubber pad, and it is easy to splash into the through hole on the rubber pad, thereby impacting the hemisphere, causing the pin to loosen or fall off; Second: During the long-term use of the shot blasting machine, the iron sand will continue to impact the rubber pad, causing the rubber pad to wear faster, and the impact force of the iron sand will be applied to the silencer plate inside and cause damage to the silencer plate.

[0005] Both of these situations will cause the inspection and repair plate of the shot blasting machine to be continuously impacted by iron sand and damaged during use, requiring users to frequently maintain the inspection and repair plate, resulting in reduced work efficiency. Summary of the invention

[0006] The invention discloses a shot blasting machine, aiming to solve the technical problem that a maintenance guard plate of the shot blasting machine is continuously impacted by iron sand and damaged during use, so that users need to frequently maintain the maintenance guard plate, resulting in reduced work efficiency.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions: A shot blasting machine, comprising a shot blasting machine body, wherein the shot blasting machine body is provided with an impeller mechanism, an inspection opening and an inspection guard plate for sealing the opening, wherein: The inspection panel comprises a connecting component and a sealing plate, wherein the connecting component is arranged at one end of the sealing plate facing the inspection port, the connecting component is a hollow structure having an opening at one end away from the sealing plate, a movable part is slidably arranged at the opening of the connecting component, two groups of clamping parts are relatively arranged at one end of the movable part away from the connecting component, and a buffer pad is slidably arranged between the two groups of clamping parts; A plurality of groups of buffer components are arranged in the hollow structure of the connecting component, and the plurality of groups of buffer components are movably connected with the movable part through movable rods. The buffer components include a fixed shaft fixed to the connecting component through a support block, and two groups of relatively arranged movable blocks are sleeved on the fixed shaft. The two groups of movable blocks are respectively movably connected with the movable part through movable rods, and a spring 2 sleeved on the fixed shaft is arranged between the two groups of movable blocks, and a spring 1 is sleeved on the fixed shaft between the movable block and the adjacent support block.

[0008] The impact force of the iron sand is buffered and shock-absorbed by the provided buffer pad, and the movable rod is pushed by the movable part to move the movable block along the fixed axis, so that the impact force borne by the movable part is buffered by the elastic force of spring one and spring two, so as to protect the maintenance guard plate.

[0009] In a preferred solution, a second buffer component is further included, which is arranged in the hollow structure of the connecting component and connected to the movable part, and the second buffer component includes: A fixing portion, which is arranged on the connecting component, and is a hollow structure with an end facing the movable portion being open; A support portion, a first end of which is slidably disposed in the hollow structure of the fixed portion, and a second end of the support portion is connected to the movable portion; Spring three is arranged in the fixing portion toward which the first end of the supporting portion faces.

[0010] The movable part pushes the supporting part to slide toward the fixed part, and the spring three is squeezed, so that the movable part is buffered and shock-absorbed under the rebound force of the spring three, so as to extend the service life of the maintenance guard plate.

[0011] In a preferred embodiment, a cleaning mechanism is further provided on the connecting component, wherein the cleaning mechanism includes an exhaust passage connecting the cavity formed by the connecting component and the movable part with the outside, and a filter is provided at one end of the exhaust passage facing the impeller mechanism.

[0012] By setting up a cleaning mechanism, the movable part discharges the air in the connecting component through the exhaust duct and cleans the impurities on the connecting component, while allowing air to circulate between the inside of the connecting component and the outside world, and the filter can prevent external impurities from entering the inside of the connecting component.

[0013] In a preferred embodiment, a sealing groove for embedding the sealing plate is provided at the opening of the shot blasting machine body, a handle and a fixing member for fixing the sealing plate and the shot blasting machine body are provided on the sealing plate, and a fixing hole 1 and a fixing hole 2 for fixing the fixing member are respectively provided in the sealing plate and the sealing groove.

[0014] The sealing plate is attached to the sealing groove and the fixing piece is passed through the fixing hole 1 and the fixing hole 2 for fixing, thereby increasing the sealing performance between the inspection guard plate and the inspection opening, and preventing iron sand from splashing to the outside along the inspection opening during operation.

[0015] It can be seen from the above that the shot blasting machine provided by the present invention can buffer the impact force of iron sand continuously exerted on the maintenance guard plate of the shot blasting machine during use, thereby improving the protectiveness of the maintenance guard plate and extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The present invention is a schematic diagram of the overall structure of a shot blasting machine.

[0017] Figure 2 The present invention is a schematic structural diagram of a shot blasting machine maintenance guard plate and a shot blasting machine body when they are closed.

[0018] Figure 3 The present invention provides an overall structural diagram of a maintenance guard plate and a buffer pad of a shot blasting machine.

[0019] Figure 4 A shot blasting machine proposed by the present invention Figure 3 Schematic diagram of the enlarged structure at point A in the middle.

[0020] Figure 5 The present invention is a schematic diagram of the internal structure of a shot blasting machine after the inspection and repair guard plate is cut open.

[0021] Figure 6 Another structural schematic diagram of a shot blasting machine maintenance guard plate after being cut open proposed by the present invention.

[0022] Figure 7 The present invention provides a buffer assembly of a shot blasting machine, and a schematic structural diagram of a movable rod.

[0023] Figure 8 The present invention provides a schematic structural diagram of the movable part of a shot blasting machine.

[0024] Fig. 9 The present invention is a schematic structural diagram of a buffer pad of a shot blasting machine.

[0025] Fig.10 The present invention is a schematic structural diagram of a fixed part of a buffer assembly of a shot blasting machine after being cut open.

[0026] In the figure: 1, shot blasting machine body; 101, inspection port; 102, sealing groove; 103, fixing hole 2; 2, sealing plate; 201, handle; 202, fixing hole 1; 3, fixing piece; 4, connecting part; 401, slide groove 2; 402, exhaust channel; 5, cushion; 501, clamping part; 502, slider 1; 6, movable part; 601, slider 2; 602, slide groove 1; 603, clamping piece; 7, partition Sound component; 8. movable rod; 9. connecting piece; 10. spring one; 11. spring two; 12. movable block; 13. supporting block; 14. buffer component one; 15. fixing part; 151. slide groove three; 152. limiting part; 16. supporting part; 161. slide block three; 17. spring three; 18. buffer component two; 19. fixed shaft; 20. maintenance guard plate; 21. filter screen; 22. impeller mechanism; 23. cleaning mechanism. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] The shot blasting machine disclosed in the present invention mainly uses a shot blasting machine whose maintenance guard plate is continuously impacted by iron sand and damaged during use, so that users need to frequently maintain the maintenance guard plate, resulting in a scenario where work efficiency is reduced.

[0029] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 A shot blasting machine includes a shot blasting machine body 1, on which an impeller mechanism 22, an inspection port 101 and an inspection guard plate 20 for sealing the inspection port 101 are provided, and further includes: The inspection guard plate 20 includes a sealing plate 2 and a connecting component 4. The connecting component 4 is arranged at one end of the sealing plate 2 facing the inspection port 101. The connecting component 4 is a hollow structure with an opening at one end away from the sealing plate 2. A movable portion 6 is slidably arranged at the opening of the connecting component 4. Two groups of clamping members 603 are arranged opposite to one end of the movable portion 6 away from the connecting component 4. A buffer pad 5 is slidably arranged between the two groups of clamping members 603. A plurality of buffer components 14 are arranged in the hollow structure of the connecting component 4. The plurality of buffer components 14 are movably connected to the movable part 6 through the movable rod 8. The buffer components 14 include a fixed shaft 19 fixed to the connecting component 4 through a support block 13. Two groups of relatively arranged movable blocks 12 are sleeved on the fixed shaft 19. The two groups of movable blocks 12 are movably connected to the movable part 6 through the movable rod 8 respectively. A spring 2 11 sleeved on the fixed shaft 19 is provided between the two groups of movable blocks 12. A spring 10 is sleeved on the fixed shaft 19 between the movable block 12 and the adjacent support block 13.

[0030] The movable portion 6 is movably connected to the movable rod 8 via a connecting piece 9, and the buffer pad 5 is preferably made of rubber material, and may also be made of PU material, silicone material, or the like.

[0031] Specifically, the buffer assembly 14 is composed of two groups and is arranged relatively in the hollow structure of the connecting component 4, and can also be four groups. When arranged, it is arranged in a ring shape in the hollow structure of the connecting component 4. The specific arrangement can be adjusted according to the implementation requirements; when the shot blasting machine body 1 is working, the impeller mechanism 22 drives the iron sand to collide in the direction of the inspection port 101, so that the buffer pad 5 blocks the iron sand and performs buffering and shock reduction. At the same time, the buffer pad 5 can also protect the connecting component 4 and the movable part 6. At this time, under the impact pressure of the iron sand, the buffer pad 5 pushes the movable part 6 to slide along the connecting component 4 toward the sealing plate 2. At this time, the movable part 6 pushes the two movable blocks 12 arranged on the fixed shaft 19 to move relative to each other through the movable rod 8, and the spring The spring 10 and the spring 2 11 are squeezed and pulled to move at the same time, and the buffer pad 5 and the movable part 6 are relieved by the elastic force of the spring 10 and the spring 2 11, so that the impact force of the iron sand on the buffer pad 5 is dispersed, thereby protecting the buffer pad 5 and increasing its service life, that is, extending the service life of the maintenance guard plate 20, and after the force is relieved by the buffer component 14, the noise of the iron sand hitting the buffer pad 5 will also be reduced. When the shot blasting machine body 1 stops working, the spring 10 and the spring 2 11 are reset under the action of the rebound force, so that the movable part 6 and the buffer pad 5 are reset for the next use, which reduces the time required for users to frequently maintain the maintenance guard plate 20, and improves the working efficiency of the shot blasting machine body 1.

[0032] It should be noted that the types of spring 10 and spring 2 11 can be tension springs, compression springs, etc., the material of the connecting component 4 can be iron alloy, aluminum alloy, etc., and when the connecting component 4 is embedded in the inspection port 101, the end of the connecting component 4 away from the sealing plate 2 is in a horizontal state with the inner wall of the shot blasting machine body 1, so that the iron sand is not affected when operating inside the shot blasting machine body 1; in addition, each group of buffer components 14 includes two relatively fixed support blocks 13 arranged on the connecting component 4 and a fixed shaft 19 arranged between the two support blocks 13, and two relatively arranged movable blocks 12 are sleeved on the fixed shaft 19, and the end of the movable block 12 away from the fixed shaft 19 is connected by a hinge It is movably connected to the movable rod 8, and a spring 10 is provided between the end of each movable block 12 away from the spring 2 11 and the support block 13. There are two springs 10, and the two ends of the spring 10 are respectively connected to the support block 13 and the movable block 12. At the same time, the two groups of movable blocks 12 are respectively connected to the two ends of the spring 2 11, so that the movable block 12 can simultaneously drive the spring 2 11 and the spring 10 to move when it moves, thereby achieving a maximized buffering effect; in order to find the appropriate length of the spring 10 and the spring 2 11, the length and elastic coefficient of the spring 10 and the spring 2 11 can be selected by judging the pressure coefficient of the movable part 6 and then using the elastic formula F=KX.

[0033] In the process of buffering and shock absorbing by the above scheme, since the iron sand will irregularly hit the end surface of the rubber pad away from the movable part 6, in order to enable the movable part 6 to fully buffer and shock the impact force of the iron sand, the specific operation method is as follows: Reference Figure 5 , Figure 6 and Fig.10 In a preferred embodiment, it also includes a buffer component 2 18, which is arranged in the middle structure of the connecting part 4 and connected to the movable part 6. The buffer component 2 18 includes a fixed part 15, which is arranged on the connecting part 4, and the fixed part 15 is a hollow structure with an end facing the movable part 6 as an opening; a support part 16, a first end of which is slidably arranged in the hollow structure of the fixed part 15, and a second end of the support part 16 is connected to the movable part 6; a spring three 17, which is arranged in the fixed part 15 facing the first end of the support part 16.

[0034] Among them, the support part 16 is slidably connected to the fixed part 15 through a slider three 161, and a slide groove three 151 is provided in the fixed part 15 for the slider three 161 to slide. Through the arrangement of the slider three 161 and the slide groove three 151, the stability of the support part 16 when sliding along the fixed part 15 can be improved, and at the same time, the pressure applied by the support part 16 to the spring three 17 can be more uniform.

[0035] Specifically, when the movable part 6 moves toward the connecting component 4 under the impact force of the iron sand, the movable part 6 squeezes the supporting part 16, so that the supporting part 16 slides along the sliding groove 3 151 of the fixed part 15 through the slider 3 161, and squeezes the spring 3 17. The rebound force of the spring 3 17 buffers and reduces shock to the movable part 6, thereby relieving the impact force on the buffer pad 5, so as to achieve the purpose of protecting the maintenance guard plate 20 and extending its service life.

[0036] It should be noted that spring three 17 can be a compression spring and can also be a disc spring. In comparison, disc springs have strong load-bearing, buffering and vibration reduction capabilities. In addition, buffer components two 18 are multiple groups and are arranged on the connecting component 4 between buffer components one 14. Buffer component two 18 is intended to buffer and release force in the middle area of ​​the movable part 6, while buffer component one 14 can release force and buffer the edge area of ​​the movable part 6. The end of the support part 16 away from the fixed part 15 is fixedly connected to the movable part 6. In another embodiment, buffer component two 18 can be replaced with a shock absorber, and the shock absorbing effect of the shock absorber can buffer and reduce shock to the movable part 6, so that the impact force on the movable part 6 is dispersed, thereby achieving protection of the maintenance guard plate 20. Furthermore, buffer component two 18 can be replaced with a spring, which is arranged between the movable part 6 and the connecting component 4 by multiple groups of springs, so that the movable part 6 is buffered by multiple groups of springs when it moves toward the inside of the connecting component 4.

[0037] Reference Fig.10 In a preferred embodiment, the slider three 161 is an L-shaped structure, and the slide groove three 151 is provided with a limiting portion 152 for limiting the slider three 161.

[0038] Specifically, there are multiple groups of sliders 3 161 and slide grooves 3 151, so that the connection between the support portion 16 and the fixed portion 15 is more stable. The limiting portion 152 is located at one end of the slide groove 3 151 close to the opening of the fixed portion 15. The limiting portion 152 of the L-shaped structure can prevent the slider 3 161 from sliding out along the slide groove 3 151, so that the connection between the support plate and the fixed portion 15 is more stable. At the same time, when the movable portion 6 applies pressure to the support portion 16, the movable portion 6 makes the movement process of the support portion 16 more stable through the arrangement of the slide groove 3 151 and the slider 3 161, so that the pressure applied to the spring 3 17 is also more uniform, so that the buffer pad 5 can release force after buffering to extend its service life, thereby eliminating the need for users to frequently maintain the inspection guard plate 20.

[0039] In the process of buffering and shock absorption of the above scheme, in order to prevent the noise of iron sand hitting the inspection guard plate 20 from being too loud and propagating outside the shot blasting machine body 1, the specific operation method is as follows: Reference Figure 6In a preferred embodiment, it also includes a sound insulation member 7, which is arranged between the connecting member 4 and the sealing plate 2. The sound insulation member 7 is preferably a sound insulation board. The sound insulation board is a common wall sound insulation material. The sound insulation effect of the sound insulation board is very good. At the same time, the sound insulation member 7 can also be sound insulation glass, sound insulation felt, polyurethane foam plastic, etc.

[0040] Specifically, the sound insulation member 7 can be provided to fully isolate the noise in the shot blasting machine body 1, so that the noise reduction effect of the shot blasting machine body 1 will be better, and the noise leakage can be avoided, thus providing a good working environment for the users.

[0041] In another embodiment, the sound insulation member 7 can also be arranged between the inner wall and the outer wall of the shot blasting machine body 1. This has the advantage that the interior of the shot blasting machine body 1 can be soundproofed in all directions, and the noise generated by the lost iron sand hitting the shot blasting machine body 1 will not be transmitted to the outside of the shot blasting machine body 1, thereby providing users with a good working environment and improving work efficiency.

[0042] Reference Figure 6 and Figure 8 In a preferred embodiment, the movable part 6 is slidably connected to the connecting component 4 through a second slider 601, and a second slide groove 401 is provided in the connecting component 4 for the movable part 6 to slide.

[0043] Specifically, there are four groups of sliders 2 601 on the movable part 6, and correspondingly, there are four groups of slide grooves 2 401 on the connecting part 4. When hit by iron sand, the movable part 6 slides along the slide grooves 2 401 on the connecting part 4 through the sliders 2 601. The advantage of this is that the stability of the movable part 6 when sliding on the connecting part 4 can be improved, so that the pressure applied by the movable part 6 to the buffer component 14 and the buffer component 2 18 when hit is more uniform, so as to achieve the best buffering effect.

[0044] It should be noted that the positions of the second slide groove 401 and the second slider 601 are lower than the position of the opening of the connecting component 4, which can prevent the movable part 6 from sliding out along the connecting component 4. The buffer component 1 14 and the buffer component 2 18 play a certain supporting role on the movable part 6 inside the connecting component 4. Therefore, the slider 2 601 on the movable part 6 will not slide along the second slide groove 401 when the shot blasting machine body 1 is not in use.

[0045] Reference Figure 3 , Figure 4 , Figure 8 and Fig. 9 In a preferred embodiment, the buffer pad 5 is slidably connected to the clamping member 603 through a slider 502, and the clamping member 603 is provided with a slide groove 602 for the slider 502 to slide.

[0046] Specifically, there are two groups of slide grooves 602, which are respectively arranged on two groups of clamping members 603. The clamping members 603 protrude from the movable part 6. The setting of the slider 502 and the slide groove 602 can make the connection between the buffer pad 5 and the movable part 6 more stable. The user can also replace and maintain the buffer pad 5 by sliding the buffer pad 5 out and in along the slide groove 602.

[0047] It should be noted that the length of the slide groove 602 and the slider 502 is smaller than the length of the buffer pad 5, so that when the buffer pad 5 slides into the clamping member 603, the slider 502 will not slide out along the slide groove 602, thereby playing a limiting role. At the same time, it can also prevent external iron sand from entering the interior of the connecting component 4 along the slide groove 401, thereby improving the service life of the device. In addition, in order to make the slider 502 of the buffer pad 5 more stably in the slide groove 602, a fixing screw (not shown in the figure) can be threadedly arranged at the entrance of the slide groove 602, and the opening and closing of the slide groove 602 can be controlled by the fixing screw, so as to limit and disassemble the slider 502.

[0048] Reference Figure 3 , Figure 4 and Fig. 9 In a preferred embodiment, a holding portion 501 for holding on the holding member 603 is provided on the buffer pad 5 , and the holding portion 501 and the buffer pad 5 form a T-shaped structure.

[0049] Specifically, when the slider 502 of the buffer pad 5 slides along the slide groove 602, the clamping portion 501 is attached to the side of the clamping piece 603 away from the slide groove 602 and slides along with the slider 502. The advantage of this is that the clamping portion 501 can make the sealing pad completely fit with the movable part 6 and shield it, preventing iron sand from hitting the clamping piece 603 and the movable part 6, thereby improving the protection of the movable part 6 and the clamping piece 603 and making the connection between the sealing pad and the clamping piece 603 more secure.

[0050] It should be noted that the material of the clamping portion 501 is the same as that of the buffer pad 5, and the size of the clamping portion 501 is consistent with the size of the clamping piece 603; in another embodiment, the clamping portion 501 may not be set on the buffer pad 5, and the buffer pad 5 only needs to slide into the slide groove 602 through the slider 502, and the clamping piece 603 needs to select a material that is more resistant to collision, such as low-alloy high-strength steel, carbon fiber reinforced steel plate, wear-resistant steel, high manganese steel, high-speed tool steel and other materials, so that the clamping piece 603 will not suffer serious damage when frequently hit by iron sand.

[0051] In the above technical solution, considering that the dust and waste inside the shot blasting machine will come into contact with the connecting component 4 and the buffer pad 5 during the processing, in order to avoid affecting the normal movement between the buffer pad 5 and the connecting component 4, the specific operation is as follows: Reference Figure 3 , Figure 4 and Figure 6 In a preferred embodiment, it also includes a cleaning mechanism 23 arranged on the connecting component 4, the cleaning mechanism 23 includes an exhaust channel 402 that connects the cavity formed by the connecting component 4 and the movable part 6 with the outside world, and a filter screen 21 is provided at one end of the exhaust channel 402 facing the impeller mechanism 22.

[0052] Specifically, there are multiple groups of exhaust ducts, which are evenly arranged on the end face of the connecting component 4 facing the impeller mechanism 22. The impeller mechanism 22 drives the iron sand impact force buffer pad 5, so that the buffer pad 5 applies pressure to the movable part 6, pushing the movable part 6 to move toward the inside of the connecting component 4. At this time, the movable part 6 squeezes the air inside the movable part 6, so that the air in the movable part 6 is discharged along the exhaust channel 402 to the end face of the movable part 6 facing the impeller mechanism 22, and the impurities on the movable part 6 are cleaned to prevent iron sand and other impurities from adhering to the connecting component 4. At the same time, the exhaust channel 402 can also realize the circulation of air inside the movable part 6 to maintain the normal operation of the device. In addition, the filter net 21 does not affect the internal air circulation of the connecting component 4 while protecting the exhaust duct, thereby preventing external impurities from being discharged into the inside of the connecting component 4 along the exhaust channel 402.

[0053] It should be noted that the gap between the movable part 6 and the connecting part 4 is small, so that the movable part 6 and the connecting part 4 can form a closed cavity. The advantage of this is that the sealing between the movable part 6 and the connecting part 4 is improved, and impurities such as iron sand from the outside are prevented from entering the movable part 6. Therefore, when the movable part 6 moves toward the connecting part 4, the air inside the connecting part 4 will be squeezed, so that the air inside it is discharged along the exhaust duct. The air discharged from the exhaust duct will generate airflow and clean up the impurities attached to the connecting part 4. At the same time, it can also prevent external impurities from falling on the connecting part 4, thereby improving the service life of the connecting part 4. In another embodiment, the exhaust duct can also be replaced with an exhaust groove, which is an integrally connected structure. The exhaust groove can increase the speed at which the air inside the connecting part 4 circulates with the outside, so that the resistance is reduced when the movable part 6 slides into the connecting part 4.

[0054] Reference Figure 1 and Figure 2In a preferred embodiment, a sealing groove 102 for embedding a sealing plate 2 is provided at the opening of the shot blasting machine body 1, a handle 201 and a fixing member 3 for fixing the sealing plate 2 and the shot blasting machine body 1 are provided on the sealing plate 2, and a fixing hole 1 202 and a fixing hole 2 103 for fixing the fixing member 3 are respectively provided in the sealing plate 2 and the sealing groove 102.

[0055] Specifically, the maintenance guard plate 20 is placed at the maintenance port 101 of the shot blasting machine body 1 through the handle 201, so that the sealing plate 2 fits with the sealing groove 102, and then the sealing plate 2 is fixed to the shot blasting machine body 1 by passing the fixing piece 3 through the fixing hole 1 202 and the fixing hole 2 103, so that the maintenance guard plate 20 is fixed. The advantage of this is that the sealing between the maintenance guard plate 20 and the maintenance port 101 can be increased to prevent iron sand from splashing to the outside along the maintenance port 101 during operation, and it can also have a certain sound insulation effect.

[0056] It should be noted that the material of the sealing plate 2 can be a metal material that is consistent with the shot blasting machine body 1, such as iron, aluminum alloy, iron alloy, etc. The size of the sealing plate 2 is larger than the size of the inspection port 101, and the size of the connecting component 4 is equal to the size of the inspection port 101, so that the connecting component 4 can be embedded in the inspection port 101, and the sealing plate 2 fits in the sealing groove 102. At the same time, the size of the sealing groove 102 is larger than the size of the inspection port 101 and equal to the size of the sealing plate 2. In addition, in order to increase the sealing performance of the sealing plate 2 and the sealing groove 102, a sealing gasket can be provided at the fitting point of the sealing plate 2 and the sealing groove 102, so that the sealing plate 2 and the sealing groove 102 are more tightly connected. The material of the sealing gasket can be silicone material, rubber material, etc.

[0057] Working principle: When in use, the inspection plate 20 is engaged with the inspection port 101 through the handle 201, so that the sealing plate 2 fits with the sealing groove 102, and then the fixing piece 3 is passed through the fixing hole 1 202 and the fixing hole 2 103 to fix it. When the shot blasting machine body 1 is working, iron sand hits the inspection plate 20. At this time, the iron sand first hits the buffer pad 5, and the buffer pad 5 blocks the iron sand and performs buffering and shock reduction. At the same time, under the impact pressure of the iron sand, the buffer pad 5 pushes the movable part 6 to slide along the connecting part 4 toward the sealing plate 2. The movable part 6 pushes the two movable blocks 12 set on the fixed shaft 19 to move relative to each other through the movable rod 8, and squeezes the spring 2 11, and pulls the spring 10 to move at the same time. Through the elasticity of the spring 10 and the spring 2 11 The force acts to release the force on the buffer pad 5 and the movable part 6. At the same time, when the movable part 6 moves toward the connecting part 4, the movable part 6 squeezes the supporting part 16, so that the supporting part 16 slides along the slide groove three 151 of the fixed part 15 through the slider three 161, and squeezes the spring three 17. The movable part 6 is buffered and shock-absorbed by the rebound force of the spring three 17, and the impact force on the buffer pad 5 is released, thereby buffering the impact force of the iron sand on the buffer pad 5 and the movable part 6, extending the service life of the buffer pad 5 and the movable part 6, that is, extending the service life of the maintenance guard plate 20. The overall structure is simple, which is convenient for buffering the impact force of the iron sand continuously received by the maintenance guard plate 20 of the shot blasting machine during use, and has the effect of improving the protectiveness of the maintenance guard plate 20 and extending its service life.

[0058] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A shot blasting machine, comprising a shot blasting machine body (1), wherein the shot blasting machine body (1) is provided with an impeller mechanism (22), an inspection opening (101) and an inspection guard plate (20) for sealing the opening, wherein: The inspection panel (20) comprises a connecting component (4) and a sealing plate (2); the connecting component (4) is arranged at one end of the sealing plate (2) facing the inspection port (101); the connecting component (4) is a hollow structure having an opening at one end away from the sealing plate (2); a movable portion (6) is slidably provided at the opening of the connecting component (4); two groups of clamping members (603) are relatively provided at one end of the movable portion (6) away from the connecting component (4); a buffer pad (5) is slidably provided between the two groups of clamping members (603); A plurality of groups of buffer components (14) are arranged in the hollow structure of the connecting component (4); the plurality of groups of buffer components (14) are movably connected to the movable part (6) via a movable rod (8); the buffer components (14) include a fixed shaft (19) fixed to the connecting component (4) via a support block (13); two groups of relatively arranged movable blocks (12) are sleeved on the fixed shaft (19); the two groups of movable blocks (12) are movably connected to the movable part (6) via the movable rod (8); a spring (11) sleeved on the fixed shaft (19) is arranged between the two groups of movable blocks (12); and a spring (10) is sleeved on the fixed shaft (19) between the movable block (12) and the adjacent support block (13).

2. A shot blasting machine according to claim 1, characterized in that: It also includes a second buffer component (18), which is arranged in the hollow structure of the connecting component (4) and connected to the movable part (6), and the second buffer component (18) includes: A fixed portion (15) disposed on the connecting component (4), wherein the fixed portion (15) is a hollow structure with one end facing the movable portion (6) being open; A support portion (16), a first end of which is slidably disposed in the hollow structure of the fixed portion (15), and a second end of the support portion (16) is connected to the movable portion (6); A spring three (17) is arranged in the fixing portion (15) toward which the first end of the supporting portion (16) is directed.

3. A shot blasting machine according to claim 2, characterized in that: The support portion (16) is slidably connected to the fixed portion (15) via a sliding block (161), and a sliding groove (151) is provided in the fixed portion (15) for the sliding block (161) to slide.

4. A shot blasting machine according to claim 3, characterized in that: The slider three (161) is an L-shaped structure, and the slide groove three (151) is provided with a limiting portion (152) for limiting the slider three (161).

5. A shot blasting machine according to claim 1, characterized in that: It also includes a sound insulation member (7), which is arranged between the connecting component (4) and the sealing plate (2), and the sound insulation member (7) is a sound insulation board.

6. A shot blasting machine according to claim 1, characterized in that: The movable part (6) is slidably connected to the connecting component (4) via a second sliding block (601), and a second sliding groove (401) is provided in the connecting component (4) for the movable part (6) to slide.

7. A shot blasting machine according to claim 1, characterized in that: The buffer pad (5) is slidably connected to the clamping member (603) via a slider (502), and the clamping member (603) is provided with a slide groove (602) for the slider (502) to slide.

8. A shot blasting machine according to claim 7, characterized in that: The buffer pad (5) is provided with a clamping portion (501) for clamping on the clamping piece (603); the clamping portion (501) and the buffer pad (5) form a T-shaped structure; the buffer pad (5) is made of rubber.

9. A shot blasting machine according to claim 1, characterized in that: It also includes a cleaning mechanism (23) disposed on the connecting component (4), the cleaning mechanism (23) including an exhaust passage (402) connecting a cavity formed by the connecting component (4) and the movable portion (6) with the outside, and a filter screen (21) is provided at one end of the exhaust passage (402) facing the impeller mechanism (22).

10. A shot blasting machine according to claim 1, characterized in that: A sealing groove (102) for embedding the sealing plate (2) is provided at the opening of the shot blasting machine body (1); a handle (201) and a fixing member (3) for fixing the sealing plate (2) and the shot blasting machine body (1) are provided on the sealing plate (2); and a fixing hole 1 (202) and a fixing hole 2 (103) for fixing the fixing member (3) are respectively provided in the sealing plate (2) and the sealing groove (102).

Images