A feeding device of a shot blasting machine for outer wall of tubular workpiece
By designing a feeding device for a shot blasting machine for the outer wall of tubular workpieces with an electric rotary table and sealing components, the problem of stopping to change workpieces in the existing technology has been solved, realizing continuous conveying and efficient processing of workpieces.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO ZHUTONG MASCH CO LTD
- Filing Date
- 2025-08-26
- Publication Date
- 2026-07-21
AI Technical Summary
The existing shot blasting machine for tubular workpieces requires a shutdown when changing tubular workpieces, resulting in wasted time and reduced production efficiency.
A feeding device including an electric rotary table, a workpiece table, a support cylinder, and a shot blasting chamber was designed. The continuous conveying of tubular workpieces is achieved through a sealing component and a power transmission component, allowing the next batch of workpieces to be replaced directly after the previous batch of workpieces is processed, thus reducing downtime.
It enables continuous processing of tubular workpieces, reduces the time spent picking up and placing workpieces, and improves production efficiency and processing continuity.
Smart Images

Figure CN224526890U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipe processing, and in particular to a feeding device for a shot blasting machine for the outer wall of pipe workpieces. Background Technology
[0002] The feeding device for the outer wall shot blasting machine of tubular workpieces is an automated feeding equipment designed specifically for the shot blasting treatment of the outer wall of tubular workpieces (such as steel pipes). Its core function is to achieve stable and accurate conveying of tubular workpieces through mechanical structure, ensuring that the workpiece position is controllable in the shot blasting process, thereby improving the uniformity of surface treatment and production efficiency.
[0003] However, existing shot blasting machines for the outer walls of tubular workpieces, such as shot blasting machines with rotary table structures, require the batch of tubular workpieces to be removed before the next batch can be placed in after shot blasting the outer walls of a batch of tubular workpieces, resulting in wasted time.
[0004] Therefore, it is very necessary to invent a feeding device for shot blasting machines for the outer wall of tubular workpieces. Utility Model Content
[0005] To solve the above-mentioned technical problems, the present invention provides a feeding device for a shot blasting machine for the outer wall of tubular workpieces. The technical solution adopted is as follows: a feeding device for a shot blasting machine for the outer wall of tubular workpieces, including an electric rotary table, a workpiece table, a support cylinder and a shot blasting chamber, wherein: a plurality of workpiece tables are uniformly fixedly installed on the output end of the electric rotary table through a connecting arm, and a plurality of support cylinders are fixedly installed on each workpiece table through a driving mechanism. The shot blasting chamber has an inlet and outlet at each end, and a clearance opening corresponding to the connecting arm is provided on the side of the shot blasting chamber facing the electric rotary table. The clearance opening is connected to the inlet and outlet. A sealing component is provided on the outside of the inlet and outlet of the shot blasting chamber; A second sealing component is installed in the clearance opening; The workpiece table enters the shot blasting chamber through the inlet / outlet and the clearance opening.
[0006] A cavity is formed on the upper surface of the workpiece platform, and the drive mechanism is installed in the cavity.
[0007] The drive mechanism includes a drive motor, an internal gear ring, a rotating disk, and a power transmission assembly. The drive motor is fixedly installed inside the cavity, and the internal gear ring is fixedly installed on the inner surface of the cavity. The internal gear ring is coaxial with the output end of the drive motor, and the output end of the drive motor is coaxially and fixedly connected to the bottom surface of the rotating disk. The rotating disk is rotatably installed in the cavity, and several power transmission assemblies are evenly rotatably installed on the rotating disk. The power transmission assemblies are meshed with the internal gear ring, and the support cylinder is detachably installed on the corresponding power transmission assembly.
[0008] The power transmission assembly includes a rotating shaft, a gear, and a connecting platform. The gear and the connecting platform are coaxially fixedly mounted at both ends of the rotating shaft. The rotating shaft is rotatably mounted on a rotating disk. The gear is located on the lower surface of the rotating disk, and the connecting platform is located on the upper surface of the rotating disk. The gear meshes with an internal gear ring, and the connecting platform is detachably connected to the support cylinder.
[0009] The upper surface of the connecting platform is provided with an inner thread cavity, and the connecting platform is detachably connected to the support cylinder through the inner thread cavity.
[0010] The surface of the support cylinder is uniformly perforated with several weight-reducing grooves, and an external thread head is coaxially fixedly installed at the bottom of the support cylinder. The external thread head is threadedly connected to the corresponding internal thread cavity.
[0011] The sealing assembly includes a door panel, an electric push rod, and a connector. The door panel is slidably installed on the outside of the inlet and outlet, and the electric push rod is fixedly installed on the outside of the shot blasting chamber. The output end of the electric push rod is fixedly connected to the door panel through the connector.
[0012] Two protective cavities are evenly provided above the shot blasting chamber on the side near the clearance opening, and two notches are evenly provided below the shot blasting chamber on the side near the clearance opening. The notches correspond one-to-one with the protective cavities, and the sealing component two is installed in the protective cavities.
[0013] The second sealing assembly includes a baffle plate and a second electric push rod. The second electric push rod is fixedly installed in the corresponding protective cavity, and the baffle plate is slidably installed in the corresponding protective cavity. The output end of the second electric push rod is fixedly connected to the baffle plate.
[0014] Compared with the prior art, the advantages of this utility model are: The overall design of this utility model allows the next batch of tubular workpieces to be placed on the support cylinder on the workpiece table outside the shot blasting chamber in advance during the operation of the shot blasting machine. This way, after the previous batch of tubular workpieces is processed, it can be directly removed from the shot blasting chamber, while the next batch of tubular workpieces can enter the shot blasting chamber for processing, thereby reducing the loading and unloading time and making it more efficient. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0016] Figure 2 This is a schematic diagram of the opening structure of the entrance / exit and clearance opening of this utility model.
[0017] Figure 3 This is a partial cross-sectional view of the shot blasting chamber of this utility model.
[0018] Figure 4This is an exploded view of the workpiece stage of this utility model.
[0019] Figure 5 This is an exploded structural diagram of the power transmission component and support cylinder of this utility model.
[0020] Figure 6 This is a partially enlarged structural diagram of point A of this utility model.
[0021] In the picture: 1. Electric rotary table; 2. Workpiece table; 21. Connecting arm; 3. Cavity; 4. Drive motor; 5. Internal gear ring; 6. Rotary disk; 7. Power transmission assembly; 71. Rotating shaft; 72. Gear; 73. Connecting platform; 74. Internal thread cavity; 8. Support cylinder; 81. Weight reduction groove; 82. External thread head; 9. Shot blasting chamber; 10. Inlet / outlet; 11. Clearance opening; 12. Door panel; 13. Electric push rod; 14. Connector; 15. Protective cavity; 16. Baffle plate; 17. Electric push rod II; 18. Notch. Detailed Implementation
[0022] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.
[0023] In the description of the embodiments, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and for simplifying the description, 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 the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of the utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in the present utility model based on the specific circumstances.
[0024] The present invention will be further described below with reference to the accompanying drawings: Example
[0025] Reference Figure 1-6 A feeding device for a shot blasting machine for the outer wall of a pipe workpiece includes an electric rotary table 1, a workpiece table 2, a support cylinder 8 and a shot blasting chamber 9, wherein: a number of workpiece tables 2 are uniformly fixedly installed on the output end of the electric rotary table 1 through a connecting arm 21, and a number of support cylinders 8 are fixedly installed on each workpiece table 2 through a drive mechanism. Specifically, the shot blasting chamber 9 has an inlet and outlet 10 at each end, and a clearance opening 11 corresponding to the connecting arm 21 is opened on the side of the shot blasting chamber 9 facing the electric rotary table 1. The clearance opening 11 is connected to the inlet and outlet 10. With this mechanism, each workpiece table 2 can enter the shot blasting chamber 9 in an orderly manner under the drive of the electric rotary table 1. When in use, the corresponding shot blasting head assembly can be installed inside the shot blasting chamber 9. Specifically, a sealing component is provided on the outside of the inlet and outlet 10 of the shot blasting chamber 9, so that the inlet and outlet 10 can be sealed by the sealing component during the shot blasting process to prevent shot from splashing out. Specifically, a sealing component 2 is installed in the clearance opening 11 so that the clearance opening 11 can be sealed by the sealing component 2 during the shot blasting process to prevent shot from splashing out; Specifically, the workpiece table 2 enters the shot blasting chamber 9 through the inlet / outlet 10 and the clearance opening 11 via the connecting arm 21.
[0026] Specifically, a cavity 3 is provided on the upper surface of the workpiece stage 2, and the drive mechanism is installed in the cavity 3 so as to provide installation space for the drive mechanism and at the same time protect the drive mechanism.
[0027] Specifically, the drive mechanism includes a drive motor 4, an internal gear ring 5, a rotating disk 6, and a power transmission assembly 7. The drive motor 4 is fixedly installed inside the cavity 3, and the internal gear ring 5 is fixedly installed on the inner surface of the cavity 3. The internal gear ring 5 is coaxial with the output end of the drive motor 4, and the output end of the drive motor 4 is coaxially fixedly connected to the bottom surface of the rotating disk 6. The rotating disk 6 is rotatably installed in the cavity 3. The rotating disk 6 can prevent the shot from entering the cavity 3. Several power transmission assemblies 7 are evenly rotatably installed on the rotating disk 6. The power transmission assemblies 7 are meshed with the internal gear ring 5. The support cylinders 8 are detachably installed on the corresponding power transmission assemblies 7. With this structure, under the drive of the drive motor 4, the rotating disk 6 can simultaneously drive each support cylinder 8 to rotate 360 degrees.
[0028] Specifically, the power transmission assembly 7 includes a rotating shaft 71, a gear 72, and a connecting platform 73. The gear 72 and the connecting platform 73 are coaxially fixed at both ends of the rotating shaft 71. The rotating shaft 71 is rotatably mounted on the rotating disk 6. The gear 72 is located on the lower surface of the rotating disk 6, and the connecting platform 73 is located on the upper surface of the rotating disk 6. The gear 72 meshes with the internal gear ring 5, and the connecting platform 73 is detachably connected to the support cylinder 8. With this structure, each support cylinder 8 can rotate 360 degrees independently, thereby allowing the outer surface of the tubular workpiece to fully contact the shot in the shot blasting chamber 9.
[0029] Specifically, the upper surface of the connecting platform 73 is provided with an internal threaded cavity 74. The connecting platform 73 is detachably connected to the support cylinder 8 through the internal threaded cavity 74. Several weight-reducing grooves 81 are evenly provided through the surface of the support cylinder 8. An external threaded head 82 is coaxially fixedly installed at the bottom of the support cylinder 8. The external threaded head 82 is threadedly connected to the corresponding internal threaded cavity 74. The setting of the internal threaded cavity 74 and the external threaded head 82 makes it convenient to replace the support cylinder 8 individually, so as to be suitable for various pipe workpieces of different specifications.
[0030] Specifically, the sealing assembly includes a door panel 12, an electric push rod 13, and a connector 14. The door panel 12 is slidably installed on the outside of the entrance / exit 10, and the electric push rod 13 is fixedly installed on the outside of the shot blasting chamber 9. The output end of the electric push rod 13 is fixedly connected to the door panel 12 through the connector 14 so that the door panel 12 can be driven to rise and fall by the electric push rod 13. When the electric push rod 13 is fully extended, the door panel 12 will move above the entrance / exit 10, so that the entrance / exit 10 is fully exposed. When the electric push rod 13 is fully retracted, the door panel 12 will move to the front of the entrance / exit 10 to block the entrance / exit 10.
[0031] Specifically, two protective cavities 15 are evenly provided above the side of the shot blasting chamber 9 near the avoidance opening 11, and two notches 18 are evenly provided below the side of the shot blasting chamber 9 near the avoidance opening 11. By setting the notches 18, when the sealing component 2 is opened, the shot can be prevented from falling outside the shot blasting chamber 9. The notches 18 correspond one-to-one with the protective cavities 15. The sealing component 2 is installed in the protective cavity 15 so as to protect the electric push rod 2 17 through the protective cavity 15 and prevent the electric push rod 2 17 from contacting the shot.
[0032] Specifically, the sealing assembly 2 includes a baffle plate 16 and an electric push rod 2 17. The electric push rod 2 17 is fixedly installed in the corresponding protective cavity 15, and the baffle plate 16 is slidably installed in the corresponding protective cavity 15. The output end of the electric push rod 2 17 is fixedly connected to the baffle plate 16. When the electric push rod 2 17 is fully extended, the bottom of the baffle plate 16 will enter the notch 18. The top of the baffle plate 16 will not leak out of the protective cavity 15. When the electric push rod 2 17 is fully retracted, the bottom of the baffle plate 16 will completely enter the protective cavity 15.
[0033] It should be noted that this case uses a PLC controller for control. Since PLC controller is a very mature technology, it will not be discussed in detail here.
[0034] In this embodiment, when in use, the tubular workpiece is inserted into the support cylinder 8 located outside the shot blasting chamber 9, and then the sealing assembly one and the sealing assembly two are opened to allow the electric rotary table 1 to rotate. During the rotation, the connecting arm 21 enters the shot blasting chamber 9 from the clearance port 11, and the workpiece table 2 enters the shot blasting chamber 9 from the inlet and outlet 10. When the workpiece table 2 carrying the support cylinder 8 with the tubular workpiece inserted has completely entered the shot blasting chamber 9, the electric rotary table 1 stops rotating, and the sealing assembly one and the sealing assembly two are closed to perform shot blasting. During shot blasting, tubular workpieces can be inserted into other support cylinders 8 in advance. After the previous batch of tubular workpieces is processed, they can be directly removed from the shot blasting chamber 9. During the removal process, the next batch of tubular workpieces will enter the shot blasting chamber 9 for processing, thereby reducing the time for picking up and putting down tubular workpieces, thus reducing downtime and making the process more efficient.
[0035] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.
Claims
1. A feeding device for a shot blasting machine for the outer wall of tubular workpieces, characterized in that: It includes an electric rotary table (1), a workpiece table (2), a support cylinder (8) and a shot blasting chamber (9), wherein: the output end of the electric rotary table (1) is uniformly fixedly installed with several workpiece tables (2) through a connecting arm (21), and each workpiece table (2) is fixedly installed with several support cylinders (8) through a drive mechanism. The shot blasting chamber (9) has an inlet and outlet (10) at each end. The shot blasting chamber (9) has a clearance opening (11) on the side facing the electric rotary table (1) that corresponds to the connecting arm (21). The clearance opening (11) is connected to the inlet and outlet (10). A sealing component is provided on the outside of the inlet and outlet (10) of the shot blasting chamber (9); A sealing component 2 is installed in the clearance opening (11); The workpiece table (2) enters the shot blasting chamber (9) through the inlet (10) and the clearance opening (11).
2. The feeding device for a shot blasting machine on the outer wall of a tubular workpiece as described in claim 1, characterized in that: The workpiece stage (2) has a cavity (3) on its upper surface, and the drive mechanism is installed in the cavity (3).
3. The feeding device for a shot blasting machine on the outer wall of a tubular workpiece as described in claim 2, characterized in that: The drive mechanism includes a drive motor (4), an internal gear ring (5), a rotating disk (6), and a power transmission assembly (7). The drive motor (4) is fixedly installed inside the cavity (3). The internal gear ring (5) is fixedly installed on the inner surface of the cavity (3). The internal gear ring (5) is coaxial with the output end of the drive motor (4). The output end of the drive motor (4) is coaxially fixedly connected to the bottom surface of the rotating disk (6). The rotating disk (6) is rotatably installed in the cavity (3). Several power transmission assemblies (7) are evenly rotatably installed on the rotating disk (6). The power transmission assembly (7) is meshed with the internal gear ring (5). The support cylinder (8) is detachably installed on the corresponding power transmission assembly (7).
4. The feeding device for a shot blasting machine on the outer wall of a tubular workpiece as described in claim 3, characterized in that: The power transmission assembly (7) includes a rotating shaft (71), a gear (72) and a connecting platform (73). The gear (72) and the connecting platform (73) are coaxially fixed at both ends of the rotating shaft (71). The rotating shaft (71) is rotatably mounted on the rotating disk (6). The gear (72) is located on the lower surface of the rotating disk (6). The connecting platform (73) is located on the upper surface of the rotating disk (6). The gear (72) meshes with the internal gear ring (5). The connecting platform (73) is detachably connected to the support cylinder (8).
5. The feeding device for a shot blasting machine for the outer wall of tubular workpieces as described in claim 4, characterized in that: The upper surface of the connecting platform (73) is provided with an inner wire cavity (74), and the connecting platform (73) is detachably connected to the support cylinder (8) through the inner wire cavity (74).
6. The feeding device for a shot blasting machine for the outer wall of a tubular workpiece as described in claim 5, characterized in that: The support cylinder (8) has several weight-reducing grooves (81) evenly distributed throughout its surface. An external thread head (82) is coaxially fixedly installed at the bottom of the support cylinder (8). The external thread head (82) is threadedly connected to the corresponding internal thread cavity (74).
7. The feeding device for a shot blasting machine for the outer wall of a tubular workpiece as described in claim 1, characterized in that: The sealing assembly includes a door panel (12), an electric push rod (13), and a connector (14). The door panel (12) is slidably installed on the outside of the entrance (10), and the electric push rod (13) is fixedly installed on the outside of the shot blasting chamber (9). The output end of the electric push rod (13) is fixedly connected to the door panel (12) through the connector (14).
8. The feeding device for a shot blasting machine for the outer wall of a tubular workpiece as described in claim 1, characterized in that: Two protective cavities (15) are evenly opened on the upper side of the shot blasting chamber (9) near the avoidance opening (11), and two notches (18) are evenly opened on the lower side of the shot blasting chamber (9) near the avoidance opening (11). The notches (18) correspond one-to-one with the protective cavities (15), and the sealing component 2 is installed in the protective cavity (15).
9. The feeding device for a shot blasting machine for the outer wall of a tubular workpiece as described in claim 8, characterized in that: The second sealing assembly includes a baffle plate (16) and an electric push rod (17). The electric push rod (17) is fixedly installed in the corresponding protective cavity (15), and the baffle plate (16) is slidably installed in the corresponding protective cavity (15). The output end of the electric push rod (17) is fixedly connected to the baffle plate (16).