A percussion mechanism, percussion module and percussion device

Abstract

The present application relates to a kind of percussion mechanism, percussion module and percussion device, the percussion mechanism includes percussion mechanism body and bullet, piston cavity and buffer cavity are arranged in the percussion mechanism body, the first end of the bullet is in the piston cavity, second end forms the percussion part that can extend the piston cavity, piston cavity and buffer cavity are provided with inner cover between the piston cavity and the buffer cavity, the inner cover separates the piston cavity and the buffer cavity, and the inner cover can be moved in the buffer cavity, the diameter of the buffer cavity is greater than the diameter of the piston cavity, and the piston cavity is coaxial with the buffer cavity, the percussion mechanism body is provided with pressurizing station and pressure relief station, when the bullet is in the extended state, the piston cavity and pressure relief station are connected, and piston cavity and pressurizing station are not connected;When the bullet is in the retracted state, the piston cavity and pressure relief station are not connected, the buffer cavity, piston cavity and pressurizing station are mutually connected;The percussion mechanism is not easy to damage.

Description

Technical Field

[0001] The present invention relates to the field of rust removal equipment, and in particular to a knocking mechanism, a knocking module and a knocking device. Background Art

[0002] At present, the rust removal methods on the market can be mainly divided into shot blasting, sand blasting and wire drawing without acid washing.

[0003] Shot blasting utilizes high-speed mechanical equipment to eject steel shots of a specific size using the centrifugal force of the blasting head. These shots violently collide with the material being removed, removing rust. Shot blasting equipment primarily consists of a shot blaster, a wear-resistant rubber belt, an auger, an elevator, a separator, a feed conveyor, a dust collector, and electrical equipment. Sandblasting utilizes high-pressure air to propel quartz sand onto the surface of a component. A complete suction-type dry sandblasting machine typically consists of six systems: the structural system, the media power system, the piping system, the dust removal system, the control system, and the auxiliary system. Wire drawing without pickling is primarily used for rust removal of wire rods. A non-pickling, shelling, and rust removal machine primarily consists of a five-wheel shelling mechanism, an adjustable cross-parabolic wire brush, a fully enclosed rust removal chamber, a forced lubrication system, a wire drawing die frame, and an electrical control system. Therefore, whether it is a shot blasting machine, a sandblasting machine, or a non-pickling, wire drawing machine, they all require a large number of components and are bulky. In order to reduce the size of the rust removal device, our company has developed a new rust removal device. This rust removal device installs multiple knocking mechanisms on the frame and uses the bullets of the knocking mechanisms to knock the materials to remove rust. However, when the bullets of the existing knocking mechanisms hit the materials and rebound to the piston cavity, they collide violently with the piston cavity, causing the knocking mechanisms to be easily damaged. The knocking device has a high maintenance frequency during use. Summary of the Invention

[0004] Based on this, the present invention provides a knocking mechanism that is not easily damaged.

[0005] The technical solution adopted by the present invention is a knocking mechanism, comprising a knocking mechanism body and a bullet, a piston chamber and a buffer chamber being provided in the knocking mechanism body, the first end of the bullet being located in the piston chamber, and the second end forming a knocking portion that can extend out of the piston chamber, an inner cover being provided between the piston chamber and the buffer chamber, the inner cover separating the piston chamber and the buffer chamber, and the inner cover being movable in the buffer chamber, a pressurizing station and a pressure relief station being provided on the knocking mechanism body, the pressure relief station being not connected to the buffer chamber, when the bullet is in an extended state, the piston chamber and the pressure relief station being connected, and the piston chamber and the pressurizing station being not connected; when the bullet is in a retracted state, the piston chamber and the pressure relief station are not connected, and the buffer chamber, the piston chamber and the pressurizing station are connected to each other.

[0006] Preferably, a bullet inner hole, a first air hole and a second air hole are formed on the bullet, and the first air hole and the second air hole are both connected to the bullet inner hole. The bullet inner hole has an opening formed at the first end of the bullet facing the piston cavity, so that the bullet inner hole is connected to the piston cavity.

[0007] Preferably, the knocking mechanism body also includes a piston cylinder and an outer cover, the piston chamber is located in the piston cylinder and passes through both ends of the piston cylinder, the buffer chamber is located in the outer cover and is open toward one end of the piston chamber, and the inner cover is sealed between the piston chamber and the buffer chamber so that the piston chamber and the buffer chamber are not directly connected.

[0008] Preferably, the diameter of the buffer cavity is larger than the diameter of the piston cavity, and the piston cavity is coaxial with the buffer cavity. The first end of the inner cover is sealed with the piston cavity, and the second end of the inner cover is sealed with the buffer cavity.

[0009] Preferably, a compression air groove is provided on the second end surface of the inner cover, and the compression air groove is communicated with the buffer cavity.

[0010] Preferably, an air channel is formed on the side wall of the knocking mechanism body, one end of the air channel is connected to the buffer chamber, and the other end is connected to the pressurizing station.

[0011] Preferably, a first limiting portion is formed at the first end of the bullet, an intermediate portion is formed between the first limiting portion and the knocking portion, a diameter of the first limiting portion is larger than a diameter of the intermediate portion, a second limiting portion matching the first limiting portion is provided on the side wall of the piston cylinder, a diameter of the second limiting portion matches the diameter of the intermediate portion, the pressurizing station is located on the second limiting portion, the pressurizing station is a groove connected to the airway, and the opening of the groove faces the first limiting portion.

[0012] Preferably, a second air groove is provided on the second limiting portion, and the air channel and the pressurizing station are both connected to the second air groove; and / or,

[0013] A first air groove is provided on the first limiting portion, and an opening of the first air groove faces the second limiting portion.

[0014] The present invention provides a knocking module, comprising a module bracket and a plurality of knocking mechanisms according to any one of the above items, wherein the plurality of knocking mechanisms are fixed on the module bracket.

[0015] Preferably, the knocking mechanism body includes a first cylinder body and a second cylinder body, the first cylinder body and the second cylinder body are connected, the pressurizing station is located on the first cylinder body, the pressure relief station is located on the second cylinder body, and the specific gravity of the first cylinder body is greater than that of the second cylinder body.

[0016] Preferably, at least part of the second bodies of the striking mechanisms are connected to each other as one body; and / or,

[0017] The first body is made of metal material, and the second body is made of plastic material.

[0018] The present invention also provides a knocking device, comprising a driving mechanism and a plurality of knocking mechanisms arranged in parallel, wherein the knocking mechanism is any one of the knocking mechanisms described above, the driving mechanism is connected to the buffer chamber, and compressed fluid is introduced into the buffer chamber, and the bullet moves back and forth relative to the knocking mechanism body under the drive of the compressed fluid.

[0019] The present invention is provided with a buffer chamber coaxial with the piston chamber. When the bullet rebounds, the buffer chamber can play a buffering role, reducing the collision between the bullet and the inner wall of the piston chamber. The knocking mechanism is not easily damaged, which can reduce the maintenance frequency of the knocking device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of the preferred embodiments of the present invention shown in the accompanying drawings. The same reference numerals indicate the same parts throughout the accompanying drawings, and the drawings are not drawn to scale with actual size. The emphasis is on illustrating the subject matter of the present invention.

[0021] Figure 1 This is an overall structural diagram of a knocking device according to a preferred embodiment of the present invention;

[0022] Figure 2 This is an overall structural diagram of a striking device according to another preferred embodiment of the present invention;

[0023] Figure 3 This is the exploded view of the initial module;

[0024] Figure 4 for Figure 3 Section view in the AA direction;

[0025] Figure 5 for Figure 4 A cross-sectional view of the knocking mechanism in the assembled state;

[0026] Figure 6 To supplement the exploded view of the module;

[0027] Figure 7 Cross-sectional view of the supplementary module

[0028] Figure 8 This is an overall structural diagram of the knocking mechanism according to a preferred embodiment of the present invention;

[0029] Figure 9 An exploded view of the striking mechanism according to a preferred embodiment of the present invention;

[0030] Figure 10 A cross-sectional view of the striking mechanism in an exploded state according to a preferred embodiment of the present invention;

[0031] Figure 11 A cross-sectional view of a warhead according to a preferred embodiment of the present invention;

[0032] Figure 12 is a cross-sectional view of the knocking mechanism body in an assembled state according to a preferred embodiment of the present invention;

[0033] Figure 13 This is an overall structural diagram of the knocking mechanism from another perspective of a preferred embodiment of the present invention;

[0034] Figure 14 A bottom view of a knocking system according to a preferred embodiment of the present invention;

[0035] Figure 15 A cross-sectional view of a knocking system according to a preferred embodiment of the present invention;

[0036] Figure 16 Another overall structural diagram of the knocking system according to a preferred embodiment of the present invention;

[0037] Figure 17 is a cross-sectional view of a knocking mechanism according to a preferred embodiment of the present invention;

[0038] Figure 18 is a cross-sectional view of a striking mechanism according to another preferred embodiment of the present invention;

[0039] Figure 19-23 1 is an overall structural diagram of different embodiments of the warhead of the present invention. DETAILED DESCRIPTION

[0040] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings.

[0041] It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to the other element and integrated therewith, or there may be an intermediate element. The terms "mounted", "one end", "the other end" and similar expressions used herein are for illustrative purposes only.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art. The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0043] like Figure 1-23 As shown, the technical solution adopted by the present invention is a striking device comprising a drive mechanism and a plurality of striking mechanisms arranged in parallel, each of which comprises a bullet 12 and a striking mechanism body 11 connected to the bullet 12. One end of the bullet 12 forms a striking portion 1200, and the bullet 12 reciprocates relative to the striking mechanism body 11 under the drive of the drive mechanism. One end of the bullet 12 is connected to the striking mechanism body 11, and the other end is a free end. When an object to be struck approaches the free end of the bullet 12, the free end of the bullet 12 strikes the object to be struck (the material 800 is generally a metal plate, such as a steel plate or iron plate), thereby removing rust from the surface of the object through the striking vibration. At the moment when the bullet 12 strikes the material 800, the material 800 is fixed by an external force, and the amplitude of the overall vibration of the material 800 is relatively small. Therefore, compared with existing striking devices, the noise generated by the striking device is relatively small. Since the bullets 12 are evenly distributed, the force during striking is also evenly distributed, and the striking effect is relatively stable.

[0044] In a preferred embodiment, the striking device includes multiple independently moving striking modules, each of which includes multiple synchronously moving striking mechanisms. During production, a corresponding number of striking modules can be integrated together, eliminating the need to install individual striking modules individually, facilitating production and installation. If a module becomes damaged during use, it can be easily disassembled and replaced, making maintenance more convenient.

[0045] In a preferred embodiment, the striking device further includes a mounting bracket 40, and each striking module further includes a module bracket 20, to which the striking mechanism is fixed. The module bracket 20 is movably connected to the mounting bracket 40, and the module bracket 20 can reciprocate relative to the mounting bracket 40 in the direction of movement of the projectile 12. During use, the module bracket 20 is adjusted according to the thickness of the material 800 to ensure an appropriate distance between the striking module and the material 800.

[0046] In a preferred embodiment, each knocking module further includes a positioning component, which is fixed on the module bracket 20 , and an adjustment spring is further provided between the module bracket 20 and the mounting bracket 40 .

[0047] In a preferred embodiment, the positioning component includes a positioning roller, and the positioning roller is arranged on the feed side of the knocking module. During operation, the positioning wheel presses the object to be knocked, and when the bullet 12 reciprocates to the highest point, there is a certain distance between it and the object to be knocked.

[0048] In a preferred embodiment, the mounting bracket 40 comprises a suspension beam 401, at least two support columns 402, a connecting column 403 and a pull rod 404. The at least two support columns 402 are fixedly connected to the suspension beam 401 and extend upward relative to the suspension beam 401, the connecting column 403 is connected to the suspension beam 401 and located between the two support columns 402, the first end of the pull rod 404 is connected to the support column 402 and the second end is connected to the connecting column 403, and the first end of the pull rod 404 is higher than the second end. Since most of the components of the entire knocking device are assembled in the middle of the mounting bracket 40, the gravity is too large, especially when there are more knocking modules, the gravity of the knocking modules themselves, the gravity of the materials 800 during work and the force exerted by the power device are concentrated together, which may be difficult for ordinary mounting brackets 40 to bear. The mounting bracket 40 adopted by the present application can ingeniously transfer part of the stress in the middle to both sides, reduce the burden in the middle, and make the overall structure more stable.

[0049] In a further preferred embodiment, the mounting bracket 40 comprises a suspension beam 401, two support columns 402, two connecting columns 403, two pull rods 404 and a connecting rod 405, the two support columns 402 are fixedly connected to the two ends of the suspension beam 401, the two connecting columns 403 are fixedly connected to the suspension beam 401 and located between the two support columns 402, the two connecting columns 403 are spaced apart, the two ends of the two pull rods 404 are connected to the corresponding connecting columns 403 and support columns 402 respectively, and the two ends of the connecting rod 405 are connected to the two connecting columns 403. The setting of the connecting rod 405 makes the mounting bracket 40 more integral and the structure more stable.

[0050] In another preferred embodiment, the knocking device further comprises a mounting bracket 40 and a support bracket 50, a plurality of knocking mechanisms are mounted on the mounting bracket 40, and the mounting bracket 40 is mounted on the support bracket 50. The two ends of the mounting bracket 40 are connected to the support bracket 50, and the gravity of the knocking modules themselves, the gravity of the materials 800 during work and the force exerted by the power device are partially transferred to the support bracket 50. A lifting assembly 60 is provided between the mounting bracket 40 and the support bracket 50, and the lifting assembly 60 is used to drive the mounting bracket 40 to lift relative to the support bracket 50; the lifting assembly 60 can make the mounting bracket 40 drive the components mounted on the upper part thereof to move up and down, thereby adjusting the height of the knocking modules, so that they can be applied in different scenes, and materials 800 with different thicknesses can also be knocked by using the knocking device.

[0051] In a preferred embodiment, the knocking device includes a first knocking array 100 and a second knocking array 200, a feed channel is formed between the first knocking array and the second knocking array 200, and the first knocking array 100 and the second knocking array 200 each include a plurality of knocking mechanisms arranged in parallel, the bullets 12 of the first knocking array 100 and the bullets 12 of the second knocking array 200 face oppositely, and the material 800 passes through the feed channel. The first knocking array 100 and the second knocking array 200 knock on different sides of the material 800 respectively, achieving simultaneous double-sided knocking with higher efficiency. In the feeding direction of the knocking device, the first knocking array 100 and the second knocking array 200 are arranged facing each other or staggered, preferably staggered. The bullet 12 of the present invention strikes the material 800, generating a small-area, large-amplitude vibration, thereby removing the rust on its surface; if an opposite setting is adopted, both sides of the material 800 are subjected to force at the same time, which will inevitably cause part of the force to be offset, and the knocking effect will be relatively poor. The staggered setting can just avoid this problem and can also achieve the effect of double-sided knocking.

[0052] In a preferred embodiment, the knocking device includes a front knocking array 300 and a rear knocking array 400, which are spaced apart along the feeding direction of the knocking device. The rear knocking array 400 is arranged on the discharge side of the front knocking array 300, and a rust detection device 500 is also provided between the front knocking array 300 and the rear knocking array 400. The rust detection device 500 detects the material 800 coming out of the front knocking array 300. If rust is still detected in some parts, the rear knocking array 400 will perform additional knocking based on the detection results, and the bullet 12 on the rear knocking array 400 will selectively select the position with rust to knock. This can ensure the knocking effect and avoid the problem of excessive roughness of the material 800 caused by excessive knocking. In a preferred embodiment, the rust detection device 500 includes a detection bracket and a camera installed on the detection bracket. The camera is connected to the controller of the knocking device, and the surface of the material 800 is photographed by the camera, and then rust detection is performed through image recognition. In this embodiment, the detection bracket is equipped with upper and lower rows of cameras for respectively photographing and detecting rust on the upper and lower surfaces of the material 800. In other embodiments, the rust detection device 500 can also detect rust using an ultrasonic probe.

[0053] In a preferred embodiment, the rear knocking array 400 includes a plurality of knocking modules that move independently of each other, each knocking module includes a plurality of knocking mechanisms that move synchronously, and the knocking device also includes a mounting bracket 40. Each knocking module also includes a module bracket 20, and the knocking mechanism is fixed to the module bracket 20. A lifting drive device is provided between the module bracket 20 and the mounting bracket 40, and the lifting drive device drives the module bracket 20 to reciprocate relative to the mounting bracket 40 along the movement direction of the bullet 12. Specifically, the structure of the rear knocking array 400 is the same as that of the front knocking array 300. Since the role of the rear knocking array 400 is to supplement the knocking and remove the rust that was not completely removed by the front knocking array 300, its workload is relatively small, and the rear knocking array 400 can also be set according to actual conditions.

[0054] In a preferred embodiment, a rust detection device 500 is further provided on the discharge side of the rear striking array 400, which can detect the strike quality of products with higher strike quality requirements.

[0055] In a preferred embodiment, at least some of the striking mechanisms are arranged in multiple rows and columns, and the centers of the striking portions 1200 of at least some of the striking mechanisms in different rows are staggered in a direction perpendicular to the feeding direction of the striking devices. This means that the projections of the multiple bullets 12 perpendicular to the feeding direction of the striking devices are different. After the material passes through the striking station, the points struck by the bullets 12 on the striking sheet are connected to form a sheet, resulting in a better striking effect.

[0056] In a preferred embodiment, the plurality of striking mechanisms form a parallelogram array, that is, after the plurality of striking mechanisms are arranged, the shape formed by their edges is substantially a parallelogram, and the angles formed by adjacent sides of the parallelogram are non-right angles.

[0057] In a preferred embodiment, the centers of the striking parts 1200 of at least some of the striking mechanisms are arranged in a parallelogram pattern on the striking surface of the striking device, and the line connecting the centers of the striking parts 1200 of the striking mechanisms in the same row is arranged at an angle relative to the feeding direction of the striking device. Adjacent bullet heads 12 are arranged in a staggered manner to avoid leaving blind spots on the plate to be struck.

[0058] In a preferred embodiment, at least some of the striking mechanisms are arranged to form a striking zone, with dust curtains (not shown) positioned on the infeed and / or discharge sides of the striking zone. The lower end of the dust curtain contacts the plate to be struck. During the striking process, a large amount of dust is released into the air. The dust curtain traps the dust inside, reducing contamination of the air outside the curtain. Furthermore, the dust curtain is a rigid curtain with a soft edge at its lower portion. This edge contacts the plate to be struck and serves to collect debris. Specifically, the soft edge is a brush or a soft polymer material.

[0059] In the preferred embodiment, the discharge side of the knocking mechanism is provided with a waste collecting device for removing the slag knocked off.

[0060] In the preferred embodiment, the knocking mechanism body 11 further comprises a dust suction pipe 16, the opening of which is arranged close to the knocking part 1200 for removing the slag knocked off.

[0061] In the preferred embodiment, the discharge side of the knocking mechanism is provided with a spiral waste collecting brush 160 and a dust suction device, the central axis of the waste collecting brush 160 is arranged along the length direction of the rust removing unit, and the dust suction port of the dust suction device is arranged close to the end of the waste collecting brush 160. Specifically, the waste collecting brush 160 is connected to a power mechanism, which drives the waste collecting brush 160 to rotate. The spiral waste collecting brush 160 can collect the slag on the plate to be rust removed to one side of the plate. The dust suction device is used for dust removal to reduce air pollution and also can collect the waste into a waste cylinder.

[0062] In the preferred embodiment, the knocking mechanism body 11 comprises an air cavity (it is to be noted that the air cavity can be filled with compressed gas or liquid instead), the bullet 12 is movably embedded in the air cavity, and the driving mechanism comprises a gas distribution mechanism 31, which is in communication with the air cavity and is used for filling the air cavity with compressed gas to drive the bullet 12 to reciprocate relative to the air cavity. Specifically, the knocking device comprises a plurality of gas distribution mechanisms 31, each of which is in communication with a plurality of knocking mechanisms through a pipeline. In another preferred embodiment, the knocking device comprises a plurality of knocking modules that move independently of each other, each of which comprises a plurality of knocking mechanisms that move synchronously, and each of which is connected to a gas distribution mechanism 31.

[0063] In the preferred embodiment, the knocking mechanism mainly comprises the bullet 12, the air cavity, the buffer cavity 103, the gas distribution mechanism 31, the damping device, the rust block recycling device, and the driving mechanism 15.

[0064] In a further preferred embodiment, the air cavity comprises a guide hole 101 and a piston cavity 102 below the guide hole 101. The buffer cavity 103 is part of the piston cavity 102. The space enclosed by the end of the bullet 12 located within the piston cavity 102 and the sidewalls of the piston cavity 102 constitutes the buffer cavity 103. The size of the buffer cavity 103 changes with the movement of the bullet 12. The bullet 12 is mounted in the guide hole 101 so that it can be raised and lowered. The sidewalls of the bullet 12 fit closely to the inner wall of the guide hole 101, isolating the piston cavity 102 from the outside atmosphere. A buffer chamber 103 is provided at the end of the piston chamber 102 away from the guide through hole 101, and a pressurizing station 104 is provided in the piston chamber 102. A vertical air channel 107 is provided in the side wall of the piston chamber 102, one end of the air channel 107 is connected to the buffer chamber 103, and the other end of the air channel 107 is connected to the pressurizing station 104. A pressure relief station 105 is provided in the guide through hole 101, and the pressure relief station 105 is connected to the atmospheric pressure; the pressurizing station 104 and the pressure relief station 105 are annular grooves.

[0065] In a further preferred embodiment, the bullet 12 includes a bullet inner hole 120, a striking portion 1200 for striking is provided at the top of the bullet 12, and air holes are provided on the side wall of the bullet 12, which may include a first air hole 121 and a second air hole 122. When the bullet 12 is not actuated, the second air hole 122 corresponds to the pressurizing station 104, and the first air hole 121 is closed by the side wall of the guide through hole 101 in the guide through hole 101, so that the bullet inner hole 120 and the piston cavity 102 are isolated from the external atmosphere. Therefore, when the gas distribution mechanism 31 sprays and pressurizes the buffer cavity 103, the gas enters the pressurizing station 104 from the buffer cavity 103 through the air channel 107 of the piston cavity 102, and the gas in the pressurizing station 104 enters the bullet inner hole 120 from the second air hole 122, so that the air pressure of the bullet inner hole 120 is equal to that of the piston cavity 102. At this time, the piston cavity 102 and There is a pressure difference in the external atmospheric pressure, which pushes the bullet 12 toward the guide through hole 101; the bullet 12 is pushed away from the piston chamber 102 by the air pressure until the first air hole 121 corresponds to the pressure relief station 105, so that the gas in the bullet inner hole 120 is leaked into the external atmosphere; and because the second air hole 122 has left the pressurizing station 104 and is closed by the inner wall of the guide through hole 101, a certain pressure is maintained in the piston chamber 102. Therefore, when the bullet 12 rebounds after hitting the object to be struck, the piston chamber 102 can act as an air cushion to prevent the bullet 12 from hitting the bottom of the buffer chamber 103 when it rebounds. In order to ensure that the bullet 12 can return to its initial position each time it rebounds, that is, the first air hole 121 corresponds to the position of the pressurizing station 104, and at the same time prevent the rebounding bullet 12 from hitting the buffer chamber 103, a shock-absorbing spring is arranged toward the bullet 12 in the buffer chamber 103. When the bullet 12 rebounds, it hits the shock-absorbing spring to slow down, so that the second air hole 122 can correspond to the pressurizing station 104.

[0066] In a further preferred embodiment, the piston cavity 102 is wide and the guide hole 101 is narrow, with a cross-section similar to a "convex" shape. The piston cavity 102 and the guide hole 101 are connected by a connecting portion, and a second limiting portion 106 is formed at the connecting portion. The second limiting portion 106 is annular with a through hole formed in the middle, and a side wing is provided at the lower portion of the bullet 12. The side wing is the first limiting portion 123. When the bullet is extended to the maximum, the second limiting portion 106 and the first limiting portion 123 abut, causing the bullet 12 to be unable to extend further. At this time, the striking portion 1200 of the bullet 12 has extended out of the cavity opening of the air cavity and can reach the object to be struck for striking. The purpose of the setting is to prevent the bullet 12 from slipping out of the guide hole 101.

[0067] In the prior art, the gas distribution mechanism 31 is typically positioned on one side of the pressurizing station 104, directly injecting gas into the pressurizing station 104. This disadvantage is that the high-speed airflow disturbs the movement of the bullet 12, causing the bullet 12 to slow down, lengthening the entire cycle of ejection and rebound, and reducing the number of actuations per unit time of the bullet 12, thus failing to achieve the desired striking effect. Therefore, the present invention positions the gas distribution mechanism 31 below the buffer chamber 103. The line connecting the buffer chamber 103, the piston chamber 102, and the guide through-hole 101 is a straight line (with their central axes lying on the same straight line). Furthermore, the gas outlet of the gas distribution mechanism 31 is staggered from the gas inlet of the air passage 107. This allows the buffer chamber 103 to act as a primary buffer, preventing the kinetic energy of the ejected gas from directly interfering with the bullet 12. Instead, the bullet 12 is driven by air pressure, which helps increase the number of actuations per unit time of the bullet 12.

[0068] In a preferred embodiment, the knocking device also includes a linear motion drive mechanism that can drive the air cavity to approach or move away from the object to be knocked; it also includes a shock-absorbing spring 14, which is arranged outside the air cavity; the dust suction pipe 16 includes a rust recovery port located on one side of the bullet 12, and the dust suction pipe 16 is connected to the rust recovery port.

[0069] In a preferred embodiment, the striking mechanism includes a striking mechanism body 11 and a bullet 12. The striking mechanism body 11 is provided with a piston chamber 102 and a buffer chamber 103. The first end of the bullet 12 is located in the piston chamber 102, and the second end forms a striking portion that can extend out of the piston chamber 102. The striking portion is used to strike the material, remove rust from the material, or crush the material. An inner cover 1113 is provided between the piston chamber 102 and the buffer chamber 103. The inner cover 1113 separates the piston chamber 102 and the buffer chamber 103, and the inner cover 1113 can move within the buffer chamber 103. When the bullet 12 rebounds, it first collides with the inner cover 1113. There is high-pressure gas in the buffer chamber 103. When the buffer moves within the buffer chamber 103, the high-pressure gas acts as a buffer, so that the bullet 12 is not damaged. A pressurization station 104 and a pressure relief station 105 are provided on the striking mechanism body 11. When the bullet 12 is in the retracted state, the piston chamber 102 and the pressure relief station 105 are not connected, and the buffer chamber 103, the piston chamber 102 and the pressurizing station 104 are connected to each other; the high-pressure gas (of course it can also be hydraulic) first enters the buffer chamber 103, then enters the pressurizing station 104 from the airway 107, and then enters the piston chamber 102 from the pressurizing station 104. When the pressure in the piston chamber 102 is large enough, the bullet 12 can be pressed out of the piston chamber 102, so that the striking part of the bullet 12 hits the material, which is used for rust removal, breaking materials, etc. When the bullet 12 is in the extended state, the piston chamber 102 and the pressure relief station 105 are connected, and the piston chamber 102 and the pressurizing station 104 are not connected; after the piston chamber 102 and the pressure relief station 105 are connected, the gas in the piston chamber 102 can be released, the air pressure in the piston chamber 102 is reduced, and the rebound force generated by the bullet 12 colliding with the material causes the bullet 12 to rebound quickly and then extend again.

[0070] In a further preferred embodiment, bullet 12 is formed with a bullet bore 120, a first air hole, and a second air hole. The first air hole and the second air hole are both connected to bullet bore 120. Bullet bore 120 has an opening formed at the first end of bullet 12 facing piston chamber 102, connecting bullet bore 120 with piston chamber 102. High-pressure gas (which can also be hydraulic pressure) first enters buffer chamber 103, then enters pressurizing station 104 through air passage 107, and then enters piston chamber 102 from pressurizing station 104.

[0071] In a further preferred embodiment, the striking mechanism body 11 further includes a piston cylinder 1111 and an outer cover 1112. The piston chamber 102 is located within the piston cylinder 1111 and extends through both ends of the piston cylinder 1111. The buffer chamber 103 is located within the outer cover 1112 and is open at one end toward the piston chamber 102. An inner cover 1113 is sealingly connected between the piston chamber 102 and the buffer chamber 103, preventing direct communication between the piston chamber 102 and the buffer chamber 103. The inner cover 1113 both seals the piston chamber 102 and allows movement within the buffer chamber 103.

[0072] In a preferred embodiment, the diameter of buffer chamber 103 is larger than that of piston chamber 102, and piston chamber 102 and buffer chamber 103 are coaxial. A step is formed between piston chamber 102 and buffer chamber 103. The end of inner cover 1113, located in buffer chamber 103, presses against this step. When bullet 12 collides with inner cover 1113, buffer chamber 103 can act as a buffer. The first end of inner cover 1113 seals against piston chamber 102, and the second end of inner cover 1113 seals against buffer chamber 103.

[0073] In another preferred embodiment, the diameter of the buffer chamber 103 is equal to or smaller than the diameter of the piston chamber 102, and an annular convex ring 11110 is arranged between the piston chamber 102 and the buffer chamber 103. The first end of the inner cover 1113 cooperates with the inner wall of the convex ring 11110, and the second end of the inner cover 1113 cooperates with the buffer chamber 103, and the inner cover extends into the interior of the piston chamber 102.

[0074] In a further preferred embodiment, a compression air groove 11130 is provided on the second end face of the inner cover 1113, and the compression air groove 11130 is connected to the buffer chamber 103. By providing the compression air groove 11130, the inner cover 1113 can be tightly abutted against the end of the side wall of the piston chamber 102, thereby achieving a better sealing effect.

[0075] In a further preferred embodiment, an air channel 107 is formed on the side wall of the knocking mechanism body 11 , one end of the air channel 107 is connected to the buffer chamber 103 , and the other end is connected to the pressurizing station 104 .

[0076] In a further preferred embodiment, a first limiting portion 123 is formed at the first end of the bullet 12, and an intermediate portion is formed between the first limiting portion 123 and the striking portion 1200. The diameter of the first limiting portion 123 is larger than the diameter of the intermediate portion. A second limiting portion 106 is provided on the side wall of the piston cylinder 1111 to match the first limiting portion 123. The diameter of the second limiting portion 106 matches the diameter of the intermediate portion. The pressurizing station 104 is located on the second limiting portion 106. The pressurizing station 104 is a groove connected to the airway 107, and the opening of the groove faces the first limiting portion 123. Before the first striking of the material, there is no high-pressure gas in the buffer chamber 103 and the piston chamber 102, but due to the gravity of the bullet 12 itself, the bullet 12 is in a suspended state. When high-pressure gas is filled into the buffer chamber 103 , the high-pressure gas applies pressure to the second limit portion 106 through the pressurizing station 104 , forcing the bullet 12 to retract into the piston chamber 102 until the pressurizing station 104 is connected to the buffer chamber 103 .

[0077] In a further preferred embodiment, a second air groove 1060 is provided on the second limiting portion 106, and both the air passage 107 and the pressurizing station 104 are connected to the second air groove 1060. A first air groove 1230 is provided on the first limiting portion 123, and the opening of the first air groove 1230 faces the second limiting portion 106. In other words, the first air groove 1230 and the second air groove 1060 are connected to each other.

[0078] In a preferred embodiment, the driving mechanism is connected to the buffer chamber 103 , and the driving mechanism introduces compressed fluid into the buffer chamber 103 . Driven by the compressed fluid, the bullet 12 performs reciprocating motion relative to the striking mechanism body.

[0079] In a preferred embodiment, the striking mechanism body includes a first body 111 and a second body 112, which are connected. Specifically, the first body 111 and the second body 112 are fixedly connected by clamping or bolting. A piston chamber 102, a buffer chamber 103, and an air passage 107 are formed within the first body 111. The buffer chamber 103 is located above the piston chamber 102 and is aligned with the piston chamber 102. Furthermore, the buffer chamber 103 is a portion of the piston chamber 102. The chamber enclosed by the connecting end of the projectile (i.e., the end located within the piston chamber 102) and a portion of the sidewall of the piston chamber 102 constitutes the buffer chamber 103. A pressurizing station 104 is formed on the sidewall of the piston chamber 102 and communicates with the buffer chamber 103 via an air passage 107. The gas distribution mechanism 31 directs high-pressure gas into the buffer chamber 103, which then enters the pressurizing station 104. The first body 111 is formed with a guide hole 101, and a pressure relief station 105 is provided on the sidewall of the guide hole 101. The striking portion 1200 of the bullet can pass through the guide hole 101 and extend out of the guide hole 101. The bullet 12 is formed with a bullet inner hole 120, a first air hole 121, and a second air hole 122. The first air hole 121 and the second air hole 122 are both connected to the bullet inner hole 120. When the bullet 12 is in the retracted state, the second air hole 122 is connected to the pressurizing station 104, and the first air hole 121 is closed by the side wall of the guide hole 101. The high-pressure airflow passes through the buffer chamber 103, the pressurizing station 104, and the second air hole 122 and enters the bullet inner hole 120, so that the pressure of the bullet inner hole 120 and the buffer chamber 103 remains balanced and higher than the atmospheric pressure. When the pressure becomes greater and greater, the bullet 12 can be pressed downward, so that the bullet 12 extends and hits the material 800. When the bullet 12 is in the extended state, the first air hole 121 is connected to the pressure relief station 105, and the second air hole 122 is closed by the side wall of the piston chamber 102. After the first air hole 121 is connected to the pressure relief station 105 on the second body 112, the high pressure in the bullet inner hole 120 is released from the pressure relief station 105. After the bullet 12 strikes the plate to be struck, a strong rebound force is also generated, causing the bullet to quickly rebound back to its original position. Since the pressure in the buffer chamber 103 still exists, the gas in the buffer chamber 103 forms an air cushion, which can cushion the rebound force of the bullet 12, reduce or even avoid the collision between the connecting end of the bullet 12 and the piston chamber 102, reduce wear, and extend the service life of the striking device. The material specific gravity of the second body 112 is lower than that of the first body 111. Dividing the striking mechanism body 11 into the first body 111 and the second body 112 can reduce the weight of the striking device without affecting its performance and save costs. Specifically, the first body 111 is made of stainless steel, and the second body 112 is made of plastic, aluminum alloy or other materials.The first body 111 includes a piston cylinder 1111, an inner cover 1113, and an outer cover 1112. The piston chamber 102 is located within the piston cylinder 1111. The bullet 12 passes through the piston chamber 102, and the other end of the bullet 12 is stuck in the piston chamber 102. The outer cover 1112 is fixed to the piston cylinder 1111. The buffer chamber 103 is surrounded by the outer cover 1112, the inner cover 1113, and the piston cylinder 1111. The inner cover 1113 is located between the piston chamber 102 and the buffer chamber 103. When the bullet 12 is extended, the bullet 12 and the inner cover 1113 seal the piston chamber 102, and the inner cover 1113 and the outer cover 1112 seal the buffer chamber 103. The buffer chamber 103 is inflated, and the gas enters the piston chamber 102 through the airway and then enters the bullet inner hole 120. When the air pressure is large enough, the bullet 12 is pressed out and hits the material; after being impacted, the bullet 12 resets, and the bullet 12 presses the inner cover 1113 toward the buffer chamber 103. The gas in the buffer chamber 103 forms an air cushion, which buffers the bullet 12 and the inner cover 1113, reduces the impact force, and extends the service life.

[0080] In a further preferred embodiment, the first body 111 is made of a metal material, and the second body 112 is made of a plastic material. Specifically, the first body 111 is made of stainless steel, and the second body 112 is made of a plastic material, such as PC / SAN, PC / PBT, or PC / PP. Furthermore, the first body 111 includes a piston cylinder 1111, an inner cover 1113, and an outer cover 1112. The piston cylinder 1111 is open at both ends, and the bullet 12 passes from the first end of the piston cylinder 1111 into the second end of the piston cylinder 1111, with the connecting end of the bullet 12 located within the piston cylinder 1111. The inner cover 1113 is fixed to the interior of the first end of the piston cylinder 1111, and the outer cover 1112 covers the inner cover 1113 and is fixed to the exterior of the piston cylinder 1111.

[0081] In a preferred embodiment, at least some of the second bodies 112 of the striking mechanisms are interconnected as a single unit. This makes the structure more stable and better able to withstand the impact force generated during pressure relief. Furthermore, all second bodies 112 on each striking module are integrally cast. Each striking module includes 4*3 or 5*4 bullets 12, each of which is provided with a second body 112. The multiple second bodies 112 are cast as a single unit.

[0082] In a preferred embodiment, the knocking module includes an initial knocking module 3001 and a supplementary knocking module 3002, and the knocking device includes a front knocking array 300 and a rear knocking array 400, wherein the initial knocking module 3001 is installed on the front knocking array 300, and the supplementary knocking module 3002 is installed on the rear knocking array 400. The knocking mechanism of the initial knocking module 3001 is staggered to form a parallelogram array; the knocking mechanism of the supplementary knocking module 3002 forms a square array. The module bracket 20 of the supplementary knocking module 3001 includes a first fixing member 204 and may further include a second fixing member. A plurality of knocking mechanisms are fixed on the first fixing member 204, and the first fixing member 204 and the second fixing member are connected by a telescopic device 203. The telescopic device 203 drives the knocking mechanism on the first fixing member 204 to extend or retract. One end of the telescopic device 203 is fixed on the module bracket 20, and the other end is fixed on the mounting bracket 40. According to the detection result of the rust detection device 500, the corresponding telescopic device 203 is controlled to extend or shorten. When the rust detection device 500 detects that the rust at a certain position is unqualified, the corresponding telescopic device 203 is extended, and the knocking module 1 corresponding to the telescopic device 203 can contact the material 800 and knock on the material 800. The second fixing member includes a first shell 201 and a second shell 202. The supplementary striking module 3002 is located in the space formed by the first shell 201 and the second shell 202. A through hole adapted to the bullet 12 is formed on the second shell 202. The first fixing member and the knocking mechanism are both located in the accommodating space. The telescopic device 203 is fixed on the first shell 201, and the bullet 12 can extend from the through hole.

[0083] In a preferred embodiment, the bullet includes a bullet body 1114 and a striking portion 1200. The bullet body includes a first limiting portion 123 and an intermediate portion. The diameter of the first limiting portion 123 is larger than that of the intermediate portion, and the intermediate portion is located between the first limiting portion 123 and the striking portion 1200. One end of the bullet body 1114 is connected to the striking portion 1200, and the other end is provided with the first limiting portion 123. The diameter of the first limiting portion 123 is larger than that of the bullet body 1114. The bullet body 1114 is provided with a bullet inner hole 120 and an air hole. The bullet inner hole 120 extends through the end surface of the first limiting portion 123. The air hole is located on the side wall of the bullet body 1114 and is connected to the bullet inner hole 120 for pressurization or pressure relief. There can be only one air hole, that is, the same air hole is used for both pressurization and pressure relief. Alternatively, there can be two air holes, such as a first air hole 121 for pressure relief and a second air hole 122 for pressurization. The striking surface of the striking portion 1200 is uneven, which increases the contact area between the striking surface and the material, increases the force per unit area of ​​the material, and improves the rust removal effect.

[0084] In a preferred embodiment, a first air groove 1230 is provided at the location where the first limiting portion 123 connects to the bullet body 1114. The first air groove 1230 surrounds the bullet body 1114. Before the first strike, the bullet is suspended in the piston cavity. The first air groove 1230 is used to press the bullet into the piston cavity. The diameter of the striking portion 1200 is smaller than the diameter of the bullet body 1114, and the striking portion 1200 is coaxial with the bullet body 1114. A wear-resistant layer is provided on the striking surface of the striking portion 1200 to increase wear resistance and extend service life. Specifically, the wear-resistant layer is made of chromium carbide wear-resistant metal material, high manganese steel wear-resistant material, or tungsten carbide metal wear-resistant material.

[0085] In a preferred embodiment, the air holes include a first air hole 121 and a second air hole 122. The vertical distance from the first air hole 121 to the striking portion 1200 is smaller than the vertical distance from the second air hole 122 to the striking portion 1200. Furthermore, the projections of the first air hole 121 and the second air hole 122 on a plane perpendicular to the central axis of the bullet body do not overlap. During the deflation process, a reaction force is generated on the bullet, forcing it to rotate.

[0086] In a preferred embodiment, a plurality of knocking ridges 1201 and a plurality of knocking grooves 1202 are provided on the knocking surface of the knocking part 1200. The knocking ridges 1201 and the knocking grooves 1202 are alternately arranged with knocking points scattered on the knocking surface, so that the knocking area will not be reduced, and the force per unit area will be increased. The rust on the positions that are not in contact with the knocking surface will also be removed due to the high-frequency vibration.

[0087] In a preferred embodiment, the striking surface of the striking part 1200 is provided with an annular striking groove 1202 and an annular striking ridge 1201 , the central axes of the annular striking ridge 1201 and the annular striking groove 1202 are the same, and the striking groove 1202 is spaced apart from the striking ridge 1201 .

[0088] In another preferred embodiment, the striking surface of the striking portion 1200 is provided with a plurality of striking ridges 1201 and a plurality of striking grooves 1202, the plurality of striking ridges 1201 and the plurality of striking grooves 1202 being arranged at intervals, and the striking ridges 1201 and the striking grooves 1202 being radially distributed around the central axis of the bullet body 1114. Furthermore, the striking surface is further provided with a transverse groove 1203, which extends from one side of the striking portion 1200 to the other side of the striking portion 1200 and passes through the central axis of the striking portion 1200. The striking portion 1200 is provided with a vertical groove, which is parallel to the central axis of the striking portion 1200 and extends from the striking surface of the striking portion 1200 to the other end of the striking portion 1200.

[0089] In another preferred embodiment, a plurality of knocking ridges 1201 are provided on the knocking surface of the knocking part 1200 , the plurality of knocking ridges 1201 are connected end to end, the plurality of knocking ridges 1201 are arranged around the central axis of the knocking part 1200 , and knocking grooves are formed between the plurality of knocking ridges 1201 .

[0090] In other embodiments, a plurality of striking ridges 1201 are provided on the striking surface of the striking portion 1200 , and striking grooves 1202 are formed between adjacent striking ridges 1201 , wherein some of the striking ridges 1201 are radially distributed around the same point.

[0091] The present invention further provides a striking system comprising a material conveying device and any of the above-described striking devices, wherein the striking device is disposed on or to the side of the material conveying device, with the striking portion 1200 of the bullet 12 facing the feed surface of the material conveying device. The material conveying device may be a conveyor belt, conveyor rollers, or conveyor chain.

[0092] In a preferred embodiment, the knocking system further includes a soundproof enclosure extending over the knocking mechanism. In another preferred embodiment, the knocking system further includes a soundproof enclosure 700 extending over the knocking mechanism, with the material conveyor passing through the enclosure. Compared to existing marble-type knocking devices, the knocking device of the present invention generates lower decibels of noise during the knocking process and has a shorter propagation distance. The soundproof enclosure 700 effectively isolates the noise, reducing noise pollution.

[0093] The knocking device of the present invention integrates the equipment required for knocking, thereby reducing the equipment required for the knocking device, making the knocking device much smaller than the traditional knocking device, and reducing the floor space occupied.

[0094] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0095] The above-described embodiments merely represent specific implementations of the invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person of ordinary skill in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A striking device, characterized in that: The invention relates to a plurality of knocking modules and a driving mechanism that move independently of each other, wherein each knocking module comprises a plurality of knocking mechanisms arranged in parallel, wherein the knocking mechanism comprises a knocking mechanism body and a bullet, a piston chamber and a buffer chamber are provided in the knocking mechanism body, a first end of the bullet is located in the piston chamber, and a second end forms a knocking portion that can extend out of the piston chamber, an inner cover is provided between the piston chamber and the buffer chamber, the inner cover separates the piston chamber and the buffer chamber, and the inner cover can move in the buffer chamber, a pressurizing station and a pressure relief station are provided on the knocking mechanism body, the pressure relief station is not connected to the buffer chamber, when the bullet is in an extended state, the piston chamber and the pressure relief station are connected, and the piston chamber and the pressurizing station are not connected; when the bullet is in a retracted state, the piston chamber and the pressure relief station are not connected, and the buffer chamber, the piston chamber and the pressurizing station are connected to each other; The diameter of the buffer cavity is larger than the diameter of the piston cavity, and the piston cavity is coaxial with the buffer cavity. The first end of the inner cover is in sealing cooperation with the piston cavity, and the second end of the inner cover is in sealing cooperation with the buffer cavity. A compression gas groove is provided on the second end surface of the inner cover, and the compression gas groove is in communication with the buffer cavity. The knocking mechanism body also includes a dust suction pipe, the opening of which is arranged near the knocking part; a spiral waste collection brush and a dust suction device are arranged on the discharge side of the knocking mechanism, the central axis of the waste collection brush is arranged along the length direction of the knocking mechanism, and the dust suction port of the dust suction device is arranged near the end of the waste collection brush; The driving mechanism is connected to the buffer chamber, and compressed fluid is introduced into the buffer chamber. The bullet is driven by the compressed fluid to reciprocate relative to the knocking mechanism body; the knocking device also includes a mounting bracket, which includes a suspension beam, two support columns, two connecting columns, and two pull rods. The two support columns are respectively fixed at both ends of the suspension beam, and the two connecting columns are fixed on the suspension beam and located between the two support columns. The two connecting columns are spaced apart, and the two ends of the two pull rods are respectively connected to the corresponding connecting columns and support columns; Each knocking module also includes a module bracket, the knocking mechanism is fixed on the module bracket, the module bracket is movably connected to the mounting bracket, and the module bracket reciprocates relative to the mounting bracket along the movement direction of the bullet; the knocking device also includes a support bracket, and the mounting bracket is installed on the support bracket.

2. The striking device according to claim 1, wherein: The bullet has a bullet inner hole, a first air hole and a second air hole, the first air hole and the second air hole are both connected to the bullet inner hole, and the bullet inner hole has an opening formed at the first end of the bullet facing the piston cavity, so that the bullet inner hole is connected to the piston cavity.

3. The striking device according to claim 1, wherein: The knocking mechanism body also includes a piston cylinder and an outer cover. The piston cavity is located in the piston cylinder and passes through both ends of the piston cylinder. The buffer cavity is located in the outer cover and is open toward one end of the piston cavity. The inner cover is sealed between the piston cavity and the buffer cavity so that the piston cavity and the buffer cavity are not directly connected.

4. The striking device according to claim 3, characterized in that: An air channel is formed on the side wall of the knocking mechanism body, one end of the air channel is communicated with the buffer chamber, and the other end is communicated with the pressurizing station.

5. The striking device according to claim 4, characterized in that: A first limiting portion is formed at the first end of the bullet, and an intermediate portion is formed between the first limiting portion and the knocking portion. The diameter of the first limiting portion is larger than the diameter of the intermediate portion. A second limiting portion that matches the first limiting portion is provided on the side wall of the piston cylinder, and the diameter of the second limiting portion matches the diameter of the intermediate portion. The pressurizing station is located on the second limiting portion, and the pressurizing station is a groove connected to the airway, and the opening of the groove faces the first limiting portion.

6. The striking device according to claim 5, characterized in that: The second limiting portion is provided with a second air groove, and the air channel and the pressurizing station are both connected to the second air groove; and / or, A first air groove is provided on the first limiting portion, and an opening of the first air groove faces the second limiting portion.

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