Protective fence for stamping production line

Abstract

The utility model discloses a protective fence for a stamping production line, which is applied to the technical field of stamping production and comprises a stand column, two sides of the stand column are bolted with fixed enclosure frames, the interiors of the fixed enclosure frames are slidably connected with lifting fences, the bottom of the stand column is bolted with a motor, and the output end of the motor is bolted with a first bevel gear. The motor drives the threaded rod to rotate to be in threaded engagement with the threaded sleeve, so that the lifting rod can support the lifting fence to slide up and down in the fixed enclosure frame. Therefore, the protective fence can be adjusted according to the height of a machine of a stamping production line, and foreign matters are prevented from outburst to hurt workers or equipment outside the fence. The elastic force of the spring is overcome by pushing the sliding plate upwards, so that the inserting rod slides upwards to the top of the bolt seat, and the inserting rod is driven by the resilience force of the spring to be inserted into the bolt seat in a sliding mode to splice the protective fence. Therefore, the protective fence does not need to be lifted, and actual operation is facilitated.

Description

Technical Field

[0001] This utility model belongs to the field of stamping production technology, and specifically relates to protective fences for stamping production lines. Background Technology

[0002] Existing automated stamping production lines typically use robotic arms to replace traditional manual loading and unloading, thus eliminating the need for human intervention during production. To ensure the safety of automated production, protective fences are used to separate the machines from aisles, preventing unauthorized personnel from approaching the machines and causing injury.

[0003] Currently, Chinese utility model patent CN210648223U discloses a protective device for automated stamping production lines. Existing protective fences are constructed by splicing multiple fence sections together according to the production line length, making them suitable for different lines. However, during assembly, one fence section needs to be raised to allow the side posts to insert into the pins of another section, a cumbersome and time-consuming method. Furthermore, the height of existing protective fences is not adjustable, making it impossible to completely enclose machines on production lines with taller machines. During stamping operations, foreign objects can easily break through areas not covered by the fence, potentially injuring workers or damaging equipment outside the fence. Utility Model Content

[0004] The purpose of this utility model is to provide a protective fence for a stamping production line. Its advantages are that the protective fences are easy to assemble together and can be raised and lowered according to the height of the machine.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a protective fence for a stamping production line, including a column, with fixed frames bolted to both sides of the column, a lifting fence slidably connected inside the fixed frames, a motor bolted to the bottom of the column, a first bevel gear bolted to the output end of the motor, a threaded rod rotatably connected inside the column, a threaded sleeve slidably connected to the column on the surface of the threaded rod, a second bevel gear meshing with the first bevel gear bolted to the bottom of the threaded rod, and lifting rods for use with the lifting fence welded to both sides of the surface of the threaded sleeve.

[0006] Using the above technical solution, a motor drives a threaded rod to rotate and engage with a threaded sleeve, allowing the lifting rod to support the sliding of the protective fence within the fixed frame. This enables the protective fence to be adjusted according to the height of the stamping production line machines, preventing foreign objects from being ejected and injuring workers or equipment outside the fence. By pushing the sliding plate upwards to overcome the spring force, the insert rod slides upwards to the top of the pin seat, and the spring's rebound force drives the insert rod to slide and engage with the pin seat to assemble the protective fence. This eliminates the need to lift the protective fence, simplifying operation.

[0007] The present invention is further configured such that: on the sides of the two fixed frames that are far apart from each other, there are respectively provided with a pin seat and a rod that are slidably connected to each other; the side of the pin seat near the column is welded to the fixed frame; a pull plate is welded to the top of the rod; a sliding plate that is slidably connected to the inside of the fixed frame is welded to the side of the pull plate near the column; and a spring that is fixedly connected to the fixed frame is bolted to the top of the sliding plate.

[0008] By adopting the above technical solution, the spring's rebound force is used to drive the plug rod to slide into the pin seat to splice the protective fence, thus eliminating the need to lift the protective fence.

[0009] The present invention is further configured such that: a limiting plate that engages with the lifting fence is welded to the side of the lifting rod away from the threaded sleeve.

[0010] By adopting the above technical solution, the lifting fence is limited to prevent it from detaching from the surface of the lifting rod, thereby improving the stability of the lifting fence's up-and-down sliding.

[0011] The present invention is further configured such that the interior of the lifting fence is open and secured with a protective net.

[0012] By adopting the above technical solution, we can not only protect personnel from getting close to the stamping machine, but also facilitate personnel to observe the production status of the stamping production line so that malfunctions can be detected and repaired in a timely manner.

[0013] The present invention is further configured such that a warning light is bolted to the top of the column.

[0014] The above technical solution can serve as a warning, thus deterring non-professionals from staying away from the stamping production line.

[0015] The present invention is further configured such that a bearing seat for use in conjunction with a fixed frame is welded to the bottom of the column.

[0016] By adopting the above technical solution, the stability of the column placement is improved, thereby preventing the fixed frame from tilting to both sides.

[0017] The present invention is further provided that: the surface of the pull plate is provided with anti-slip stripes.

[0018] By adopting the above technical solution, the friction of the pull plate surface is increased, making it easier to pull the plug rod out of the pin seat by pulling the pull plate.

[0019] In summary, this utility model has the following beneficial effects:

[0020] 1. The motor drives the threaded rod to rotate and engage with the threaded sleeve, allowing the lifting rod to support the sliding of the lifting fence within the fixed frame. This enables the protective fence to be adjusted according to the height of the stamping production line machines, preventing foreign objects from being ejected and injuring workers or equipment outside the fence;

[0021] 2. By pushing the sliding plate upwards to overcome the spring force, the insertion rod slides upwards to the top of the pin seat. The spring's rebound force then drives the insertion rod to slide and engage with the pin seat, thus assembling the protective fence. This eliminates the need to lift the protective fence, simplifying the operation. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0024] Figure 3 This is a utility model Figure 1 Enlarged view of point A in the image;

[0025] Figure 4 This is a utility model Figure 2 Enlarged view of point B in the image.

[0026] Reference numerals in the attached diagram: 1. Post; 2. Fixed frame; 3. Lifting fence; 4. Motor; 5. First bevel gear; 6. Threaded rod; 7. Threaded sleeve; 8. Second bevel gear; 9. Lifting rod; 10. Pin seat; 11. Spring; 12. Sliding plate; 13. Pull plate; 14. Insert rod; 15. Limiting plate; 16. Protective net; 17. Warning light; 18. Bearing seat. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the accompanying drawings.

[0028] Example 1:

[0029] refer to Figure 1 , Figure 2The protective fence for a stamping production line includes a column 1, with fixed frames 2 bolted to both sides of the column 1. A lifting fence 3 is slidably connected inside the fixed frames 2. A motor 4 is bolted to the bottom of the column 1, and a first bevel gear 5 is bolted to the output end of the motor 4. A threaded rod 6 is rotatably connected inside the column 1, and a threaded sleeve 7, which is slidably connected to the column 1, is threaded onto the surface of the threaded rod 6. A second bevel gear 8, which meshes with the first bevel gear 5, is bolted to the bottom of the threaded rod 6. Lifting rods 9, which cooperate with the lifting fence 3, are welded to both sides of the threaded sleeve 7. The motor 4 drives the threaded rod 6 to rotate and engage with the threaded sleeve 7, allowing the lifting rods 9 to support the lifting fence 3 as it slides up and down inside the fixed frames 2. This allows the protective fence to be adjusted according to the height of the stamping production line machines, preventing foreign objects from being ejected and injuring workers or equipment outside the fence.

[0030] refer to Figure 2 On the side of the lifting rod 9 away from the threaded sleeve 7, there is a limiting plate 15 that engages with the lifting fence 3. This limits the lifting fence 3, preventing it from detaching from the surface of the lifting rod 9 and improving the stability of the lifting fence 3 as it slides up and down.

[0031] refer to Figure 1 , Figure 2 A warning light 17 is bolted to the top of column 1. This serves as a warning, alerting non-professionals to stay away from the stamping production line.

[0032] refer to Figure 1 , Figure 2 The bottom of the column 1 is welded with a support base 18 that works in conjunction with the fixed frame 2. This improves the stability of the column 1 and prevents the fixed frame 2 from tilting to either side.

[0033] Brief description of operation: By turning on the motor 4, the first bevel gear 5 and the second bevel gear 8 mesh, causing the threaded rod 6 to rotate inside the column 1. Then, through the threaded engagement of the threaded rod 6 and the threaded sleeve 7, the threaded sleeve 7 drives the lifting rod 9 to support the lifting fence 3, allowing the lifting fence 3 to slide up and down within the fixed frame 2 for adjustment. Simultaneously, the lifting fence 3 can be self-locked and limited by the frictional force of the threaded engagement of the threaded rod 6 and the threaded sleeve 7.

[0034] Example 2:

[0035] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4The protective fence for the stamping production line has two fixed frames 2, each with a slidingly connected pin seat 10 and a rod 14 on its opposite sides. The pin seat 10 is welded to the fixed frame 2 near the column 1. A pull plate 13 is welded to the top of the rod 14, and a sliding plate 12, which is slidably connected to the inside of the fixed frame 2, is welded to the pull plate 13 near the column 1. A spring 11, which is fixedly connected to the fixed frame 2, is bolted to the top of the sliding plate 12. By pushing the sliding plate 12 upward to overcome the spring force of the spring 11, the rod 14 slides upward to the top of the pin seat 10. The return force of the spring 11 then drives the rod 14 to slide and insert into the pin seat 10 to assemble the protective fence. This eliminates the need to lift the protective fence, simplifying the operation.

[0036] refer to Figure 1 , Figure 2 The lifting fence 3 has an opening inside and is secured with a protective net 16. This serves both to protect personnel from approaching the stamping machine and to allow personnel to observe the production status of the stamping production line, so that any malfunctions can be detected and repaired in a timely manner.

[0037] refer to Figure 4 The surface of the pull plate 13 is provided with anti-slip stripes. This increases the friction of the pull plate 13 surface, making it easier to pull the insert rod 14 out of the pin seat 10 by pulling the pull plate 13.

[0038] Brief description of usage: By placing the two uprights 1 with their fixed frames 2 close to each other on one side, push the pull plate 13 to drive the sliding plate 12 to slide upward against the elastic force of the spring 11, allowing the insertion rod 14 to move up and down to the top of the pin seat 10. Then, by releasing the pull plate 13, the sliding plate 12 uses the rebound force of the spring 11 to drive the insertion rod 14 to slide and insert into the pin seat 10, thus assembling and connecting the two uprights 1 with their fixed frames 2 close to each other on one side.

[0039] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A protective fence for a stamping production line, including posts (1), characterized in that: Fixed frames (2) are bolted to both sides of the column (1). A lifting fence (3) is slidably connected inside the fixed frame (2). A motor (4) is bolted to the bottom of the column (1). A first bevel gear (5) is bolted to the output end of the motor (4). A threaded rod (6) is rotatably connected inside the column (1). A threaded sleeve (7) that is slidably connected to the column (1) is threaded onto the surface of the threaded rod (6). A second bevel gear (8) that meshes with the first bevel gear (5) is bolted to the bottom of the threaded rod (6). Lifting rods (9) that cooperate with the lifting fence (3) are welded to both sides of the surface of the threaded sleeve (7).

2. The protective fence for the stamping production line according to claim 1, characterized in that: On the two fixed frames (2) that are far apart from each other, there are respectively a pin seat (10) and a rod (14) that are slidably connected to each other. The pin seat (10) is welded to the fixed frame (2) on the side near the column (1). A pull plate (13) is welded to the top of the rod (14). A sliding plate (12) that is slidably connected to the inside of the fixed frame (2) is welded to the side of the pull plate (13) near the column (1). A spring (11) that is fixedly connected to the fixed frame (2) is bolted to the top of the sliding plate (12).

3. The protective fence for the stamping production line according to claim 1, characterized in that: Each lifting rod (9) has a limiting plate (15) welded to the side away from the threaded sleeve (7) and engaging with the lifting fence (3).

4. The protective fence for the stamping production line according to claim 1, characterized in that: The interior of the lifting fence (3) is open and secured with a protective net (16).

5. The protective fence for the stamping production line according to claim 1, characterized in that: A warning light (17) is bolted to the top of the column (1).

6. The protective fence for the stamping production line according to claim 1, characterized in that: The bottom of the column (1) is welded with a bearing seat (18) that works in conjunction with the fixed frame (2).

7. The protective fence for the stamping production line according to claim 2, characterized in that: The surface of the pull plate (13) is provided with anti-slip stripes.

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