Safe internal grinding machine for machining metal packaging container
By using four clamping components and a servo motor-driven threaded rod system, the problem of the grinding mechanism deviating from the central axis when the internal cylindrical grinding machine vibrates is solved, achieving efficient grinding of metal parts and equipment stability, and improving operational convenience.
Patent Information
- Application Number
- CN202520377110.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-06
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-06
AI Technical Summary
When existing internal grinding machines used for processing metal packaging containers vibrate or shake, the grinding mechanism and the metal parts are prone to deviating from the same central axis, resulting in a reduction in grinding effect.
The system employs a threaded rod system with four clamping components, a cross connector, and a servo motor drive to ensure that the grinding head is aligned with the metal part on the same axis. Stability is improved by the clamping components and anti-slip pads. The threaded rod rotates synchronously with the chain and the chain itself to achieve synchronous rotation. The rotating handle works with the effort-saving lever for easy operation. The mounting plate and mounting holes secure the equipment.
It improves the grinding effect of metal parts and the stability of the equipment, ensures that the grinding head and the metal part are aligned on the same axis, and enhances the ease of operation and installation stability of the equipment.
Smart Images

Figure CN223834116U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metal packaging container processing technology, specifically, to a safety-type internal grinding machine for processing metal packaging containers. Background Technology
[0002] Metal packaging containers are thin-walled packaging containers made of sheet metal. They are usually cylindrical in shape and require an internal grinding machine to polish their inner walls during the manufacturing process.
[0003] A search revealed that a safe internal grinding machine for processing metal packaging containers was published in China on November 19, 2021, with patent publication number CN214770875U. The general description is that it includes a base, a limiting block, a grinding head, and a metal packaging container body. A groove is provided at one end of the top of the base, and a threaded screw is provided inside the groove. A drive block is sleeved on the threaded screw, and a first motor is fixed to the top of the drive block by a bracket. Adjusting arms are provided on both sides of the one-way cylinder through rollers, and a limiting block is fixed to one end of each adjusting arm. The metal packaging container body is arranged between the limiting blocks.
[0004] Although the existing technical solution described above can adjust the distance between the grinding heads to facilitate fitting the inner wall of metal packaging containers with different inner diameters, the clamping structure and the grinding structure are separated when the device is working. This makes it easy for the grinding mechanism and the metal parts to be out of sync when the equipment vibrates or shakes, resulting in a reduction in the grinding effect of the metal parts. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] To address the shortcomings of existing technologies, this utility model provides a safe internal grinding machine for processing metal packaging containers, thereby solving the problem mentioned in the background technology that when the equipment vibrates or shakes, the grinding mechanism and the metal parts are not on the same central axis, resulting in a reduction in the grinding effect of the metal parts.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: a safety-type internal grinding machine for processing metal packaging containers, comprising a base and a reinforcing housing. A fixing plate is fixedly connected to the top of the base, and a cylinder is installed at one end of the fixing plate. A cross connector is fixedly connected to the output end of the cylinder. Four evenly distributed bent connectors are rotatably connected to the outer wall of the cylinder. A clamping member is rotatably connected to one end of each bent connector. Four cooperating control arms are rotatably connected to the cross connectors. The four control arms are rotatably connected to the bends of the four bent connectors. Metal parts are clamped and fixed between the four clamping members. A first control groove is provided at the top of the base. A first threaded rod is rotatably connected inside the first control groove, and a first thread is threaded onto the first threaded rod. The system comprises a first threaded component, the top of which passes through a first control groove and is connected to a mounting frame. A first motor is installed inside the mounting frame, and a turntable is fixedly connected to the output end of the first motor. A second control groove is opened at one end of the turntable, and a bidirectional threaded rod is rotatably connected inside the second control groove. One end of the bidirectional threaded rod passes through the second control groove and is connected to a first control handle. Two mating second threaded components are threadedly connected to the bidirectional threaded rod, and one end of each second threaded component passes through the second control groove and is connected to a grinding head. A servo motor connected to the first threaded rod is installed on the outer wall of the base. Two diagonally located internally threaded cylinders are fixedly connected to the fixing plate. A reinforcing sleeve is slidably connected to the outer wall of the mounting frame, and two second threaded rods threadedly connected to the internally threaded cylinders are rotatably connected to the reinforcing sleeve.
[0009] By adopting the above technical solution, the metal part is placed between four clamping parts. A cylinder is activated to retract the cross connector, which in turn moves the control arm. The control arm then rotates the bending connector, which in turn moves the clamping parts. This allows the four clamping parts to cooperate and clamp the metal part securely. A servo motor is activated to rotate the first threaded rod, which in turn moves the first threaded component. The first threaded component then moves the mounting frame, the first motor, the turntable, and the grinding head, allowing the grinding head to insert into the metal part. Rotating the first control handle rotates the bidirectional threaded rod, which in turn moves the two second threaded components towards each other, thus moving the two grinding heads towards each other. This ensures the two grinding heads are pressed tightly against the inner wall of the metal part. Rotating the two second threaded rods connects them to the inner threaded cylinder, connecting the first motor to the fixing plate. This achieves the goal of keeping the grinding mechanism and the metal part on the same central axis, improving the grinding effect.
[0010] Optionally, all four clamping members are provided with anti-slip pads.
[0011] By adopting the above technical solution, the anti-slip pad is used to increase the friction between the clamping parts and the metal parts, thereby improving the stability of the equipment.
[0012] Optionally, one end of each of the two second threaded rods passes through a reinforced sleeve and is connected to a sprocket, with a chain connecting the two sprockets for transmission.
[0013] By adopting the above technical solution, the sprocket and chain work together to make the two second threaded rods rotate synchronously, thereby facilitating operation.
[0014] Optionally, a rotating handle is fixedly connected to the sprocket, and the rotating handle is provided with multiple evenly distributed force-saving levers.
[0015] By adopting the above technical solution, the rotating handle and the force-saving lever are used to facilitate the rotation of the second threaded rod by the operator, thereby achieving the purpose of easy operation.
[0016] Optionally, a mounting plate is fixedly connected to the bottom of the base, and mounting holes are provided at the four corners of the mounting plate.
[0017] By adopting the above technical solution, the mounting plate and mounting holes are matched to facilitate the installation of the equipment in a designated location, thereby improving the stability of the equipment.
[0018] (III) Beneficial Effects
[0019] In summary, this utility model has at least one of the following beneficial technical effects:
[0020] This safety-type internal grinding machine for processing metal packaging containers places the metal part between four clamping parts. A cylinder is activated, causing the cross connector to retract. The cross connector moves the control arm, which in turn rotates the bending connector, which in turn moves the clamping parts. This allows the four clamping parts to engage and secure the metal part. A servo motor is then activated, rotating the first threaded rod. The first threaded rod moves the first threaded component, which in turn moves the mounting frame, the first motor, the turntable, and the grinding head, allowing the grinding head to insert into the metal part. Rotating the first control handle rotates the bidirectional threaded rod, which in turn moves two second threaded components towards each other, thus moving the two grinding heads towards each other. This ensures the two grinding heads are pressed tightly against the inner wall of the metal part. Rotating the two second threaded rods connects them to the internal threaded cylinder, connecting the first motor to the fixed plate. This ensures the grinding mechanism and the metal part are aligned on the same central axis, improving the grinding effect. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the first side view of the present invention;
[0022] Figure 2 This is a first cross-sectional view of the present invention.
[0023] Figure 3This utility model Figure 2 A magnified schematic diagram of the local structure at point A;
[0024] Figure 4 This utility model Figure 2 A magnified schematic diagram of the structure at point B in the middle.
[0025] In the diagram: 1. Base; 2. Reinforced housing; 3. Fixing plate; 4. Cylinder; 5. Cross connector; 6. Bending connector; 7. Clamping component; 8. Control arm; 9. Metal part; 10. First threaded rod; 11. First threaded component; 12. Mounting frame; 13. First motor; 14. Turntable; 15. Bidirectional threaded rod; 16. First control handle; 17. Second threaded component; 18. Grinding head; 19. Servo motor; 20. Internal threaded cylinder; 21. Second threaded rod; 22. Anti-slip pad; 23. Sprocket; 24. Chain; 25. Rotating handle; 26. Effort-saving lever; 27. Mounting plate; 28. Mounting hole. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] The present invention will be further described in detail below with reference to the accompanying drawings.
[0028] Reference Figures 1-3A safety-type internal grinding machine for processing metal packaging containers includes a base 1 and a reinforcing housing 2. A fixing plate 3 is fixedly connected to the top of the base 1. A cylinder 4 is mounted on one end of the fixing plate 3. A cross connector 5 is fixedly connected to the output end of the cylinder 4. Four evenly distributed bent connectors 6 are rotatably connected to the outer wall of the cylinder 4. A clamping member 7 is rotatably connected to one end of each bent connector 6. Four cooperating control arms 8 are rotatably connected to the cross connector 5. The four control arms 8 are rotatably connected to the bends of the four bent connectors 6. Metal parts 9 are clamped and fixed between the four clamping members 7. A first control groove is opened at the top of the base 1. A first screw is rotatably connected inside the first control groove. The first threaded rod 10 is threaded with a first threaded component 11. The top end of the first threaded component 11 passes through the first control groove and is connected to a mounting frame 12. A first motor 13 is installed inside the mounting frame 12. The output end of the first motor 13 is fixedly connected to a turntable 14. One end of the turntable 14 has a second control groove. A bidirectional threaded rod 15 is rotatably connected inside the second control groove. One end of the bidirectional threaded rod 15 passes through the second control groove and is connected to a first control handle 16. Two mating second threaded components 17 are threaded onto the bidirectional threaded rod 15. One end of the second threaded component 17 passes through the second control groove and is connected to a grinding head 18. A grinding head 18 is installed on the outer wall of the base 1. The servo motor 19 is connected to the fixed plate 3, and two diagonally located internally threaded cylinders 20 are fixedly connected to it. The reinforcing sleeve 2 is slidably connected to the outer wall of the mounting frame 12. Two second threaded rods 21, which are threaded to the internally threaded cylinders 20, are rotatably connected to the reinforcing sleeve 2. The metal part 9 is placed between the four clamping parts 7. The starting cylinder 4 drives the cross connector 5 to retract. The cross connector 5 drives the control arm 8 to move. The control arm 8 drives the bent connector 6 to rotate. The bent connector 6 drives the clamping parts 7 to move, so that the four clamping parts 7 cooperate to clamp and fix the metal part 9. The servo motor 19 is started to drive the first threaded rod 10 to rotate. The first threaded rod 10 drives the first threaded rod 21 to rotate. When component 11 moves, the first threaded component 11 drives the mounting frame 12, the first motor 13, the turntable 14, and the grinding head 18 to move, so that the grinding head 18 is inserted into the interior of the metal component 9. Rotating the first control handle 16 drives the bidirectional threaded rod 15 to rotate, and the bidirectional threaded rod 15 drives the two second threaded components 17 to move towards each other, thereby driving the two grinding heads 18 to move towards each other, so that the two grinding heads 18 are in close contact with the inner sidewall of the metal component 9. Rotating the two second threaded rods 21, so that the second threaded rods 21 are threadedly connected to the inner threaded cylinder 20, thereby connecting the first motor 13 to the fixing plate 3, so as to keep the grinding mechanism and the metal component 9 on the same central axis and improve the grinding effect.
[0029] Reference Figure 2 and Figure 3Each of the four clamping parts 7 is equipped with an anti-slip pad 22. The anti-slip pad 22 is used to increase the friction between the clamping parts 7 and the metal parts 9, thereby improving the stability of the equipment.
[0030] Reference Figure 2 and Figure 4 One end of each of the two second threaded rods 21 passes through the reinforcing sleeve 2 and is connected to a sprocket 23. A chain 24 is connected between the two sprockets 23. The sprockets 23 and the chain 24 cooperate to make the two second threaded rods 21 rotate synchronously, thereby facilitating operation.
[0031] Reference Figure 2 and Figure 4 A rotating handle 25 is fixedly connected to the sprocket 23. The rotating handle 25 is provided with multiple evenly distributed force-saving levers 26. The rotating handle 25 and the force-saving levers 26 cooperate to facilitate the rotation of the second threaded rod 21 by the operator, thereby achieving the purpose of easy operation.
[0032] Reference Figure 1 and Figure 2 The bottom of the base 1 is fixedly connected to the mounting plate 27. Mounting holes 28 are provided at the four corners of the mounting plate 27. The mounting plate 27 and the mounting holes 28 cooperate to facilitate the installation of the equipment in the designated position, thereby improving the stability of the equipment.
[0033] In summary, the working principle and process of this safety-type internal grinding machine for metal packaging container processing are as follows: First, the metal part 9 is placed between the four clamping parts 7. The cylinder 4 is activated, causing the cross connector 5 to retract. The cross connector 5 moves the control arm 8, which in turn rotates the bending connector 6. The bending connector 6 then moves the clamping parts 7, thus coordinating the four clamping parts 7 to clamp and fix the metal part 9. The servo motor 19 is then activated, causing the first threaded rod 10 to rotate. The first threaded rod 10 moves the first threaded part 11, which in turn moves the mounting frame 12, the first motor 13, the turntable 14, and the grinding head 18, allowing the grinding head 18 to insert into the metal part 9. The first control handle 16 is then rotated, causing the bidirectional threaded rod 15 to rotate. The bidirectional threaded rod 15 moves the two second threaded parts 17 in opposite directions, thereby moving the two grinding heads. The two grinding heads 18 move towards each other, so that they are pressed against the inner wall of the metal part 9. The two second threaded rods 21 are rotated, so that the second threaded rods 21 are threadedly connected to the inner threaded cylinder 20, thereby connecting the first motor 13 to the fixed plate 3. This achieves the purpose of keeping the grinding mechanism and the metal part 9 on the same central axis and improving the grinding effect. The anti-slip pad 22 is used to increase the friction between the clamping part 7 and the metal part 9, thereby improving the stability of the equipment. The sprocket 23 cooperates with the chain 24 to make the two second threaded rods 21 rotate synchronously, thereby facilitating operation. The rotating handle 25 cooperates with the force-saving lever 26 to facilitate the rotation of the second threaded rods 21 by the operator, thereby facilitating operation. The mounting plate 27 cooperates with the mounting hole 28 to facilitate the installation of the equipment in the designated position, thereby improving the stability of the equipment.
[0034] The embodiments described above merely illustrate specific implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.
Claims
1. A safety-type internal grinding machine for processing metal packaging containers, comprising a base (1), characterized in that: The base (1) includes a reinforced housing (2), a fixed plate (3) is fixedly connected to the top of the base (1), a cylinder (4) is installed at one end of the fixed plate (3), a cross connector (5) is fixedly connected to the output end of the cylinder (4), four evenly distributed bent connectors (6) are rotatably connected to the outer wall of the cylinder (4), a clamping member (7) is rotatably connected to one end of the bent connector (6), four cooperating control arms (8) are rotatably connected to the cross connector (5), the four control arms (8) are respectively rotatably connected to the bends of the four bent connectors (6), and a metal part (9) is clamped and fixed between the four clamping members (7). The top of the base (1) is provided with a first control groove, a first threaded rod (10) is rotatably connected inside the first control groove, a first threaded member (11) is threadedly connected to the first threaded rod (10), and a mounting frame (12) is connected to the top of the first threaded member (11) through the first control groove. The first motor (13) is installed inside the 12), and the output end of the first motor (13) is fixedly connected to the turntable (14). A second control slot is opened at one end of the turntable (14). A bidirectional threaded rod (15) is rotatably connected inside the second control slot. One end of the bidirectional threaded rod (15) passes through the second control slot and is connected to the first control handle (16). Two matching second threaded parts (17) are threadedly connected to the bidirectional threaded rod (15). One end of the second threaded part (17) passes through the second control slot and is connected to the grinding head (18). A servo motor (19) connected to the first threaded rod (10) is installed on the outer wall of the base (1). Two diagonally located internal threaded cylinders (20) are fixedly connected to the fixing plate (3). The reinforcing sleeve (2) is slidably connected to the outer wall of the mounting frame (12). Two second threaded rods (21) threadedly connected to the internal threaded cylinders (20) are rotatably connected to the reinforcing sleeve (2).
2. The safety-type internal grinding machine for processing metal packaging containers according to claim 1, characterized in that: Each of the four clamping members (7) is provided with an anti-slip pad (22).
3. The safety-type internal grinding machine for processing metal packaging containers according to claim 1, characterized in that: One end of each of the two second threaded rods (21) passes through the reinforced sleeve (2) and is connected to a sprocket (23). A chain (24) is connected between the two sprockets (23).
4. The safety-type internal grinding machine for processing metal packaging containers according to claim 3, characterized in that: A rotating handle (25) is fixedly connected to the sprocket (23), and multiple evenly distributed force-saving levers (26) are provided on the rotating handle (25).
5. A safety-type internal grinding machine for processing metal packaging containers according to claim 1, characterized in that: The bottom end of the base (1) is fixedly connected to a mounting plate (27), and mounting holes (28) are provided at the four corners of the mounting plate (27).