A protective device for shot blasting machines
By designing alternating protective plates and drive components on the shot blasting machine, the problem of the protective curtain of the shot blasting machine being easily lifted by the workpiece was solved, thus achieving improved safety protection and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DAFENG MINGHONG CASTING MASCH MFG CO LTD
- Filing Date
- 2025-08-07
- Publication Date
- 2026-07-31
AI Technical Summary
When workpieces enter and exit the shot blasting machine, the protective curtain is easily lifted by the workpieces, resulting in the two ends of the shell being exposed. High-speed shot can easily break through the protective gaps and burst outwards, threatening the safety of the operators.
Design a protective device for shot blasting machines, including two sets of protective plates and a drive assembly. The drive assembly makes the protective plates work alternately to ensure that the transmission channel is always closed and to prevent shot from flying out.
It effectively prevents shot blasting or high-speed particles from flying out, ensuring the safety of operators and equipment, reducing production downtime, and improving production efficiency.
Smart Images
Figure CN224575427U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of protective equipment technology, specifically, it relates to a protective device for shot blasting machines. Background Technology
[0002] Shot blasting machines are industrial equipment that uses a high-speed rotating shot blaster to blast shot, performing cleaning, strengthening, and polishing processes on the surface of workpieces. Currently, shot blasting machines are equipped with protective curtains at both ends of the working part's housing to prevent shot leakage. However, in actual use, when workpieces enter or exit the machine, the protective curtains are easily lifted by the workpieces, exposing both ends of the housing. At this point, the high-speed flying shot can easily break through the protective gaps and propel outwards, posing a safety threat to nearby operators. Utility Model Content
[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a protective device for shot blasting machines to solve the technical problem of shot blasting threatening the safety of workers by ejecting from the gaps in the protective curtain.
[0004] To achieve the aforementioned objectives, the technical solution adopted by this utility model includes:
[0005] Compared with the prior art, the advantages of this utility model include: a protective device for a shot blasting machine, comprising:
[0006] The housing has an internal cavity for accommodating the main structure of the shot blasting machine, and a horizontally arranged transmission channel extending through the housing.
[0007] The protective components consist of two sets, which are respectively disposed at both ends of the transmission channel. Each protective component includes a first protective plate and a second protective plate. The first and second protective plates are vertically arranged sequentially along the length of the transmission channel, and the second protective plate is close to the middle of the housing. Both the first and second protective plates are movably connected to the housing.
[0008] The driving component enables changes in the relative positions of the first and second protective plates. When the first protective plate opens the transmission channel, the second protective plate closes the transmission channel; conversely, when the second protective plate opens the transmission channel, the first protective plate closes the transmission channel.
[0009] This utility model provides a protective device for a shot blasting machine. The first protective plate and the second protective plate can work alternately under the action of the drive component. When one protective plate opens the transmission channel to allow the workpiece to pass through, the other protective plate closes the transmission channel to block the shot from flying out. In this alternating working mode, the transmission channel is always closed during the entire process of workpiece transmission, thereby providing continuous and effective protection. No matter where the workpiece is in the transmission channel, it can prevent shot or other high-speed splashing particles from flying out from both ends of the channel, thus maximizing the safety of operators and equipment.
[0010] In addition, the alternating working method allows workpieces to be continuously transported and processed without interruption of protection, reducing production interruption time caused by protection needs, improving the production efficiency of shot blasting machines, and shortening the production cycle.
[0011] Furthermore, both the first and second protective plates are slidably connected to the housing along the vertical direction. The side wall of the first protective plate is provided with a first limiting rod, and the side wall of the second protective plate is provided with a second limiting rod. The first and second limiting rods are at the same horizontal position. A first elastic element is provided between the first protective plate and the housing, and a second elastic element is provided between the second protective plate and the housing. When the first and second elastic elements are in their natural state, both the first and second protective plates close the transmission channel.
[0012] The drive assembly includes a disc disposed between the first limiting rod and the second limiting rod. The disc is rotatably connected to the housing. The disc is provided with a push rod located below the first limiting rod and the second limiting rod. By rotating the disc in different directions, the push rod can push the first limiting rod and the second push rod upward respectively.
[0013] The drive assembly also includes a drive component for driving the disk to reciprocate.
[0014] Furthermore, the driving component includes a hydraulic rod, a rack, and two gears. The two gears are coaxially fixedly connected to two disks, and the rack is slidably connected to the housing in the horizontal direction. The rack has a first tooth and a second tooth at both ends, and the first tooth and the second tooth mesh with the two gears respectively.
[0015] The hydraulic rod is mounted on the housing and has a telescopic end. The end of the hydraulic rod away from the telescopic end is hinged to the housing, and the telescopic end of the hydraulic rod is hinged to the middle of the rack. By pushing the rack to slide through the hydraulic rod, the two gears can be rotated.
[0016] Furthermore, a first push plate is provided on both sides of the first protective plate. The upper side of the first push plate is hinged to the first protective plate, and the lower side of the first push plate extends vertically downward, with the lower side of the first push plate located below the first protective plate.
[0017] The second protective plate is provided with a second push plate on both sides. The upper side of the second push plate is hinged to the second protective plate, and the lower side of the second push plate extends vertically downward and is located below the second protective plate.
[0018] Furthermore, the lower sides of the first and second push plates are made of rubber. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;
[0021] Figure 2 for Figure 1 A cross-sectional structural diagram.
[0022] Figure label:
[0023] 1. Housing; 2. Transmission channel; 3. First protective plate; 4. Second protective plate; 5. First limiting rod; 6. Second limiting rod; 7. First elastic element; 8. Second elastic element; 9. Disc; 10. Push rod; 11. Hydraulic rod; 12. Rack; 13. Gear; 14. First push plate; 15. Second push plate. Detailed Implementation
[0024] In view of the shortcomings of the prior art, the inventor of this utility model has, through long-term research and extensive practice, proposed the technical solution of this utility model. The following will further explain and illustrate the technical solution, its implementation process, and its principles in conjunction with the accompanying drawings and specific implementation examples.
[0025] It should be noted that the embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. The described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, the present invention covers any substitutions, modifications, equivalent methods and solutions made within the spirit, principles and scope of the present invention as defined by the claims. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0026] In the description of this application, the terms "first," "second," "third," and similar words do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "a" or "one," and similar words, do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including," and similar words, mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including," and their equivalents, but do not exclude other elements or objects. The terms "connected" or "linked," and similar words, are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.
[0027] In the description of this application, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this application and for simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, when using positional terms such as "both sides," "outer side," and "upper and lower," it should be understood that they are used only for ease of understanding and description, taking into account that the structure may be oriented to other positions.
[0028] In the description of this application, unless otherwise expressly specified and limited, the technical or scientific terms used shall have the ordinary meaning understood by a person with ordinary skills in the art to which this application pertains. Terms such as “installation,” “connection,” and “joining” shall be interpreted broadly, for example, as fixed connection, detachable connection, mating connection, or integral connection. For a person skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.
[0029] Please see Figure 1-2A protective device for a shot blasting machine includes a housing 1, a protective assembly, and a drive assembly. The housing 1 has an internal cavity for accommodating the main structure of the shot blasting machine. The housing 1 provides installation space and physical protection for the core components of the shot blasting machine, preventing direct impact or interference from external objects to the normal operation of the machine and reducing the impact of external environmental factors on its internal structure. The housing 1 has a horizontally oriented transmission channel 2 that runs through it. This channel serves as the path for workpieces to enter and exit the shot blasting machine, providing a stable path for workpiece transport and allowing them to smoothly enter and leave the working area of the machine.
[0030] The protective components consist of two sets, respectively located at both ends of the transmission channel 2. Each set includes a first protective plate 3 and a second protective plate 4, which are vertically arranged sequentially along the length of the transmission channel 2, with the second protective plate 4 positioned near the center of the housing 1. Both the first and second protective plates 3 and 4 are movably connected to the housing 1. The main function of the first and second protective plates 3 and 4 is to dynamically control the opening and closing of the transmission channel 2 during workpiece transport, preventing shot or other high-speed flying particles from the ends of the transmission channel 2 during operation and thus preventing injury or damage to surrounding operators and equipment, providing a safety protection function.
[0031] It should be explained that the first protective plate 3 and the second protective plate 4 are movably connected to the housing 1, so that the first protective plate 3 and the second protective plate 4 can rotate around the connection point or slide in a specific direction under the action of the drive component, thereby realizing the opening and closing action of the transmission channel 2.
[0032] The drive assembly enables the relative positions of the first protective plate 3 and the second protective plate 4 to change. The drive assembly is the power source and control core of the entire protective device; it provides the necessary driving force for the movement of the first protective plate 3 and the second protective plate 4, allowing them to change their relative positions in a predetermined manner, thus switching the open and closed states of the transmission channel 2. Specifically, when the first protective plate 3 opens the transmission channel 2, the second protective plate 4 closes it; conversely, when the second protective plate 4 opens the transmission channel 2, the first protective plate 3 closes it. In other words, when the drive assembly drives the relative movement of the first protective plate 3 and the second protective plate 4, it is impossible for both to be simultaneously in the open state.
[0033] In the specific implementation of the above scheme, the first protective plate 3 and the second protective plate 4 can work alternately under the action of the drive component. When one protective plate opens the transmission channel 2 to allow the workpiece to pass through, the other protective plate closes the transmission channel 2 to block the shot from flying out. In this alternating working method, the transmission channel 2 is always closed during the entire process of workpiece transmission, thereby continuously providing effective protection. No matter where the workpiece is in the transmission channel 2, it can prevent shot or other high-speed splashing particles from flying out from both ends of the channel, thus maximizing the safety of operators and equipment.
[0034] In addition, the alternating working method allows workpieces to be continuously transported and processed without interruption of protection, reducing production interruption time caused by protection needs, improving the production efficiency of shot blasting machines, and shortening the production cycle.
[0035] In this embodiment: the first protective plate 3 and the second protective plate 4 are both slidably connected to the housing 1 along the vertical direction. The side wall of the first protective plate 3 is provided with a first limiting rod 5, and the side wall of the second protective plate 4 is provided with a second limiting rod 6. The first limiting rod 5 and the second limiting rod 6 are at the same horizontal position.
[0036] A first elastic element 7 is provided between the first protective plate 3 and the housing 1, and a second elastic element 8 is provided between the second protective plate 4 and the housing 1. When the first elastic element 7 and the second elastic element 8 are in their natural state, both the first protective plate 3 and the second protective plate 4 close the transmission channel 2. Specifically, without applying external force to the first limiting rod 5 and the second limiting rod 6, the first protective plate 3 closes the transmission channel 2 under the action of the first elastic element 7, and the second protective plate 4 closes the transmission channel 2 under the action of the second elastic element 8.
[0037] The drive assembly includes a disk 9 disposed between the first limiting rod 5 and the second limiting rod 6. The disk 9 is rotatably connected to the housing 1. The disk 9 is provided with a push rod 10, which is located below the first limiting rod 5 and the second limiting rod 6. By rotating the disk 9 in different directions, the push rod 10 can push the first limiting rod 5 and the second push rod 10 upward respectively.
[0038] In this implementation, such as Figure 1As shown, rotating the disc 9 clockwise causes the push rod 10 to abut against the first limiting rod 5. (It should be noted that before rotating the disc 9 clockwise causes the push rod 10 to contact the first limiting rod 5, the second protective plate 4 has already moved downward under the action of the second elastic element 8, thus closing the transmission channel 2.) Continuing to rotate the disc 9 push rod 10 can push the first limiting rod 5 to slide upward in the vertical direction, thereby causing the first protective plate 3 to move upward and open the transmission channel 2. It should be noted that the rotation angle of the disc 9 at this time should be such that the push rod 10 does not disengage from the first limiting rod 5.
[0039] By rotating the disc 9 counterclockwise, the push rod 10 can be brought into contact with the second limiting rod 6. Continuing to rotate the disc 9 push rod 10 can push the second limiting rod 6 to slide upwards in the vertical direction, thereby causing the second protective plate 4 to move upwards and opening the transmission channel 2. (It should be noted that before rotating the disc 9 counterclockwise to bring the push rod 10 into contact with the second limiting rod 6, the first protective plate 3 has already moved downwards under the action of the first elastic element 7, thus re-closing the transmission channel 2. The rotation angle of the disc 9 at this time should be such that the push rod 10 does not disengage from the second limiting rod 6.)
[0040] The drive assembly also includes a drive component for driving the disk 9 to reciprocate. The drive assembly enables the disk 9 to reciprocate at a certain angle, and the rotation angle of the disk 9 should be such that the push rod 10 does not disengage from the first limiting rod 5 and the second limiting rod 6. The push rod 10 not disengaging from the first limiting rod 5 and the second limiting rod 6 should be understood as the push rod 10 not exceeding the first limiting rod 5 or the second limiting rod 6 when pushing the first limiting rod 5 or the second limiting rod 6 to move.
[0041] Specifically, the shell 1 has a hollow cuboid structure and is horizontally positioned. A transmission channel 2 extends through the shell 1 along its length. The shot blasting machine has a conveying mechanism, such as a conveyor belt or roller conveyor, which runs along the length of the transmission channel 2. The top of the shell 1 has a first through hole and a second through hole for the first protective plate 3 and the second protective plate 4 to pass through. These holes extend vertically downwards and communicate with the interior of the shell 1. The first protective plate 3 and the second protective plate 4 can slide vertically within the first through hole. A first sliding groove is formed on the outer wall of the shell 1 along the vertical direction, communicating with the interior of the shell 1. A first slider is slidably positioned within the first sliding groove. The inner end of the first slider is fixedly connected to the first protective plate 3, and the outer end is fixedly connected to a first limiting rod 5. A second sliding groove is formed vertically on the outer wall of the housing 1, communicating with the interior of the housing 1. A second slider is slidably disposed within the second sliding groove, with its inner end fixedly connected to the second protective plate 4 and its outer end fixedly connected to the second limiting rod 6. A disc 9 is disposed between the first and second sliding grooves. A first elastic element 7 is a first spring, vertically disposed within the first sliding groove, with its upper end fixedly connected to the housing 1 and its lower end fixedly connected to the first slider. A second elastic element 8 is a second spring, vertically disposed within the second sliding groove, with its upper end fixedly connected to the housing 1 and its lower end fixedly connected to the second slider.
[0042] Furthermore, the housing 1 is provided with a first blocking block and a second blocking block for restricting the rotation of the disk 9. When the push rod 10 abuts against the first blocking block, the first limiting rod 5 abuts against the top of the push rod 10 away from the disk 9. When the push rod 10 abuts against the second blocking block, the second limiting rod 6 abuts against the top of the push rod 10 away from the disk 9.
[0043] In this embodiment: the driving component includes a hydraulic rod 11, a rack 12, and two gears 13. The two gears 13 are coaxially fixedly connected to two disks 9, respectively. The rack 12 is slidably connected to the housing 1 in the horizontal direction. Specifically, the rack 12 is slidably connected to the housing 1 via a slide rail slider, with the sliding direction along the length of the housing 1. The rack 12 has a first tooth and a second tooth at both ends, and the first tooth and the second tooth mesh with the two gears 13 respectively. In this embodiment, as... Figure 1 As shown, the first tooth is located on the left side and meshes with the lower side of the gear 13 on the left. The second tooth is located on the right side and meshes with the upper side of the gear 13 on the right. This arrangement enables the synchronous movement of the first protective plate 3 of the two protective components and the synchronous movement of the second protective plate 4 of the two protective components.
[0044] The hydraulic rod 11 is mounted on the housing 1. The hydraulic rod 11 has a telescopic end, and the end of the hydraulic rod 11 away from the telescopic end is hinged to the housing 1. The telescopic end of the hydraulic rod 11 is hinged to the middle of the rack 12. The hydraulic rod 11 pushes the rack 12 to slide back and forth, which enables the two gears 13 to rotate back and forth at a certain angle.
[0045] In this embodiment: First push plates 14 are provided on both sides of the first protective plate 3. The upper side of the first push plate 14 is hinged to the first protective plate 3, and the lower side of the first push plate 14 extends vertically downward, with the lower side of the first push plate 14 located below the first protective plate 3. Through the first push plate 14, when the first protective plate 3 moves downward, it can push the workpiece to both sides, reducing the squeezing damage to the workpiece caused by the lower end of the first protective plate 3 abutting against it. Simultaneously, it allows the lower end of the first protective plate to abut against the transmission mechanism, improving the sealing effect. When the first protective plate 3 moves upward, the first push plate 14 remains parallel to the first protective plate 3 under the action of gravity.
[0046] A second push plate 15 is provided on both sides of the second protective plate 4. The upper side of the second push plate 15 is hinged to the second protective plate 4, and the lower side of the second push plate 15 extends vertically downward, with the lower side of the second push plate 15 located below the second protective plate 4. Through the second push plate 15, when the second protective plate 4 moves downward, it can push the workpiece to both sides, reducing the squeezing damage to the workpiece caused by the lower end of the second protective plate 4 abutting against it. Simultaneously, it allows the lower end of the second protective plate to abut against the transmission mechanism, improving the sealing effect. When the second protective plate 4 moves upward, the second push plate 15 remains parallel to the second protective plate 4 under the action of gravity.
[0047] In this embodiment, the lower sides of the first push plate 14 and the second push plate 15 are made of rubber. This arrangement increases the friction between the first push plate 14 and the second push plate 15 and the workpiece, thereby facilitating better movement of the workpiece and providing cushioning protection.
[0048] It should be understood that the above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. It should not be considered that the specific implementation of this utility model is limited to these descriptions. For those skilled in the art to which this utility model pertains, several simple deductions or substitutions can be made without departing from the concept of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.
Claims
1. A protection device for a shot blasting machine, characterized in that include: The housing has an internal cavity for accommodating the main structure of the shot blasting machine, and a horizontally arranged transmission channel extending through the housing. The protective components consist of two sets, which are respectively disposed at both ends of the transmission channel. Each protective component includes a first protective plate and a second protective plate. The first and second protective plates are vertically arranged sequentially along the length of the transmission channel, and the second protective plate is close to the middle of the housing. Both the first and second protective plates are movably connected to the housing. The driving component enables the relative positions of the first protective plate and the second protective plate to change. When the first protective plate opens the transmission channel, the second protective plate closes the transmission channel. Conversely, when the second protective plate opens the transmission channel, the first protective plate closes the transmission channel.
2. A protective device for a shot blasting machine according to claim 1, characterized in that The first protective plate and the second protective plate are both slidably connected to the housing in a vertical direction. The first protective plate is provided with a first limiting rod on its side wall, and the second protective plate is provided with a second limiting rod on its side wall. The first limiting rod and the second limiting rod are at the same horizontal position. A first elastic element is provided between the first protective plate and the housing, and a second elastic element is provided between the second protective plate and the housing. When the first elastic element and the second elastic element are in their natural state, both the first protective plate and the second protective plate close the transmission channel. The drive assembly includes a disc disposed between the first limiting rod and the second limiting rod. The disc is rotatably connected to the housing. The disc is provided with a push rod located below the first limiting rod and the second limiting rod. By rotating the disc in different directions, the push rod can push the first limiting rod and the second push rod upward respectively. The drive assembly also includes a drive component for driving the disk to reciprocate.
3. A protective device for a shot blasting machine according to claim 2, characterized in that: The driving component includes a hydraulic rod, a rack, and two gears. The two gears are coaxially fixedly connected to two disks, and the rack is slidably connected to the housing along the horizontal direction. The rack has a first tooth and a second tooth at both ends, and the first tooth and the second tooth mesh with the two gears respectively. The hydraulic rod is mounted on the housing and has a telescopic end. The end of the hydraulic rod away from the telescopic end is hinged to the housing, and the telescopic end of the hydraulic rod is hinged to the middle of the rack. By pushing the rack to slide through the hydraulic rod, the two gears can be rotated.
4. The protective device for a shot blasting machine according to claim 3, characterized in that: The first protective plate is provided with a first push plate on both sides. The upper side of the first push plate is hinged to the first protective plate, and the lower side of the first push plate extends vertically downward and is located below the first protective plate. The second protective plate is provided with a second push plate on both sides. The upper side of the second push plate is hinged to the second protective plate, and the lower side of the second push plate extends vertically downward and is located below the second protective plate.
5. A protective device for a shot blasting machine according to claim 4, characterized in that: The lower sides of the first and second push plates are made of rubber.