Fire-fighting shoe production cutting device with high safety

Abstract

This utility model relates to the field of fire-fighting shoe cutting technology and discloses a high-safety cutting device for fire-fighting shoe production, including a conveyor table and a blade holder. The blade holder has an internal control mechanism, which includes a connecting spring, a guide telescopic rod, a connecting block, a receiving plate, a blade, a sliding block, and a control frame. One end of the connecting spring is fixedly installed to the top of the inside of the blade holder, and one end of the guide telescopic rod is also fixedly installed to the top of the inside of the blade holder. This high-safety cutting device for fire-fighting shoe production, when the blade suddenly breaks or becomes severely worn, causes the cutting resistance to disappear, resulting in a rapid rebound of the connecting spring. This pushes the connecting block, the lower receiving plate, and the blade mounting structure downwards. The sliding block, fixed to the connecting spring, then moves the control frame downwards within a sliding groove. The downward-moving control frame instantly triggers a control switch and immediately cuts off the power to the drive via a clutch, forcing the equipment to stop and effectively avoiding the waste of an entire batch of expensive composite materials.

Description

Technical Field

[0001] This utility model relates to the field of fire-fighting shoe cutting technology, specifically a cutting device for the production of fire-fighting shoes with high safety. Background Technology

[0002] Firefighter boots are a specialized technical product integrating multiple high-performance materials. Their core functions include flame retardancy and heat insulation, puncture resistance, slip resistance, waterproofing, antistatic properties, and providing ankle support. Their structure is usually extremely complex, composed of a variety of materials such as flame-retardant leather, rubber, waterproof membrane, Kevlar cut-resistant layer, metal puncture-resistant insole, and high-temperature resistant insulation layer, to ensure that firefighters receive maximum protection in extremely harsh and dangerous environments. In the production and manufacturing of firefighter boots, cutting is the first key process that determines the precision and protective performance of the finished product.

[0003] Existing technologies employ computer numerical control (CNC) vibrating knife cutting machines, which precisely control the high-speed vibrating blade head via computer. However, when cutting the thick rubber soles or Kevlar layers of fire boots, the blades are prone to damage. The impact force upon blade breakage cannot be used to stop the blade's operation. Sudden blade breakage or severe wear can result in a large amount of material not being cut through, leading to waste of the entire batch. It can also cause insufficient cutting depth, resulting in uncut, continuous material on the current and subsequent rubber soles or Kevlar layers, wasting expensive composite fabric. Furthermore, machine shutdowns are required for troubleshooting and blade replacement, severely disrupting production rhythms, causing delivery delays, and allowing defective products to flow into subsequent processes, further increasing losses, raising production costs, and affecting product quality consistency.

[0004] Therefore, this utility model introduces a cutting device for the production of fire-fighting shoes with high safety. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a highly safe cutting device for the production of fire-fighting shoes, which has the advantage of stopping the equipment when the blade breaks, thus solving the problems mentioned in the background art.

[0006] This utility model provides the following technical solution: a cutting device for producing fire-fighting shoes with high safety, including a conveyor table and a blade holder. The blade holder has a control mechanism inside, which includes a connecting spring, a guide telescopic rod, a connecting block, a receiving plate, a blade, a sliding block, and a control frame. One end of the connecting spring is fixedly installed to the top of the inside of the blade holder, and one end of the guide telescopic rod is fixedly installed to the top of the inside of the blade holder. The upper surface of the connecting block is fixedly connected to the other end of the connecting spring and the guide telescopic rod. The top of the receiving plate is fixedly installed to the bottom of the connecting block. The top of the blade is located at the bottom of the receiving plate. A sliding groove is opened inside the blade holder. The outer surface of the sliding block is slidably installed with the inner wall of the sliding groove. The lower surface of the control frame is fixedly installed with the upper surface of the sliding block.

[0007] Preferably, a fixing plate is fixedly installed on both sides of the upper surface of the conveyor platform, an electric telescopic rod is fixedly installed on the back of the fixing plate, and a limit plate is fixedly installed at one end of the electric telescopic rod.

[0008] Preferably, the front of the sliding block is fixedly installed on the back of the connecting block.

[0009] Preferably, electric slide rails are fixedly installed on both the front and back sides of the conveyor table, and a U-shaped sliding frame is slidably installed on the outer surface of the electric slide rails.

[0010] Preferably, the top of the U-shaped sliding frame is provided with a driver, and the power output end of the driver is fixedly installed with the top of the tool holder.

[0011] Preferably, a clutch is provided at the top of the U-shaped sliding frame, the clutch is electrically connected to the drive, and a control switch is provided inside the clutch. After the bottom of the control switch is raised, the top of the control frame abuts against it, which is used to control the switching operation of the clutch and the drive.

[0012] Preferably, the conveyor platform has multiple sets of conveyor rollers evenly arranged inside for conveying the fire shoes.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. This high-safety cutting device for fire-fighting shoe production, when the blade suddenly breaks or wears out, the disappearance of cutting resistance causes the connecting spring to rebound rapidly, pushing the connecting block, the supporting plate below, and the blade mounting structure downwards. This, in turn, drives the control frame to move downwards in the sliding groove via the sliding block fixed to it. The downward-moving control frame will instantly trigger the control switch and immediately cut off the power of the drive through the clutch, forcing the equipment to stop, effectively avoiding the waste of a whole batch of expensive composite materials.

[0014] 2. This high-safety cutting device for fire boot production achieves automatic material conveying and precise cutting positioning through multiple sets of conveying rollers inside the conveyor table and a U-shaped sliding frame driven by an electric slide rail, improving production efficiency. The clamping mechanism composed of a fixed plate, an electric telescopic rod, and a limit plate ensures the stability of the material during the cutting process, further ensuring cutting accuracy, reducing production costs caused by scrap and downtime for troubleshooting, ensuring production rhythm and delivery timeliness, preventing unqualified products from flowing into subsequent processes, and ensuring the consistency of the final fire boot product quality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This utility model Figure 1 A top-view structural diagram; Figure 3 This utility model Figure 1 A partial structural diagram; Figure 4 This utility model Figure 3 An enlarged schematic diagram of the structure at point A.

[0016] In the diagram: 1. Conveyor table; 2. Conveyor roller; 3. Fixed plate; 4. Electric telescopic rod; 5. Limiting plate; 6. Electric slide rail; 7. U-shaped sliding frame; 8. Driver; 9. Knife holder; 10. Connecting spring; 11. Guide telescopic rod; 12. Connecting block; 13. Receiving plate; 14. Blade; 15. Sliding groove; 16. Sliding block; 17. Control frame; 18. Clutch; 19. Control switch. Detailed Implementation

[0017] 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.

[0018] Please see Figure 2 , Figure 3 and Figure 4A high-safety cutting device for producing fire-fighting shoes includes a conveyor table 1 and a cutter holder 9. The cutter holder 9 has a control mechanism inside, which includes a connecting spring 10, a guide telescopic rod 11, a connecting block 12, a receiving plate 13, a blade 14, a sliding block 16, and a control frame 17. One end of the connecting spring 10 is fixedly installed to the top of the inside of the cutter holder 9, and one end of the guide telescopic rod 11 is also fixedly installed to the top of the inside of the cutter holder 9. The upper surface of the connecting block 12 is fixedly connected to the other ends of the connecting spring 10 and the guide telescopic rod 11. The top of the receiving plate 13 is fixedly installed to the bottom of the connecting block 12. The top of the blade 14 is located at the bottom of the receiving plate 13. A sliding block 16 is provided inside the cutter holder 9. The outer surface of the sliding block 16 is slidably installed with the inner wall of the sliding groove 15. The lower surface of the control frame 17 is fixedly installed with the upper surface of the sliding block 16. Electric slide rails 6 are fixedly installed on both the front and back of the conveyor table 1. A U-shaped sliding frame 7 is slidably installed on the outer surface of the electric slide rail 6. A driver 8 is provided on the top of the U-shaped sliding frame 7. The power output end of the driver 8 is fixedly installed with the top of the tool holder 9. A clutch 18 is provided on the top of the U-shaped sliding frame 7. The clutch 18 is electrically connected to the driver 8. A control switch 19 is provided inside the clutch 18. After the bottom of the control switch 19 is raised, the top of the control frame 17 abuts against it, which is used to control the switching operation of the clutch 18 and the driver 8.

[0019] Specifically, the electric slide rail 6 can precisely control the movement position of the U-shaped sliding frame 7, thereby accurately driving the blade holder 9 and the blade 14 to the designated cutting position. The connecting spring 10 and the guide telescopic rod 11 ensure the stability of the blade 14 during descent and cutting, reducing shaking during the cutting process, making the cutting lines neater and more precise, improving the cutting quality of the fire boot components, and meeting the strict requirements of fire boots for component size and shape. The driver 8 provides power for the cutting action of the blade 14, realizing the automation of the cutting process. The operator only needs to set the relevant parameters, and the driver 8 can drive the blade 14 to cut according to the preset program, reducing the intensity and error of manual operation and improving production efficiency. The setting of the clutch 18 and the control switch 19 makes the start and stop of the device more intelligent. When the control frame 17 moves to a specific position with the sliding block 16, triggering the control switch 19, the clutch 18 can cut off or connect the power transmission of the driver 8 in time, realizing precise control of the cutting action of the blade 14.

[0020] Please see Figure 1 and Figure 2 Both sides of the upper surface of the conveyor table 1 are fixedly installed with fixed plates 3. An electric telescopic rod 4 is fixedly installed on the back of the fixed plate 3. A limit plate 5 is fixedly installed at one end of the electric telescopic rod 4. Multiple sets of conveying rollers 2 are evenly arranged inside the conveyor table 1 for conveying fire shoes.

[0021] Specifically, multiple sets of conveyor rollers 2 are evenly arranged inside the conveyor platform 1, ensuring uniform force distribution on the fire boots during transport. Each conveyor roller 2 provides stable support and forward momentum for the fire boots, preventing deviation, jamming, or tilting caused by uneven local force distribution. This ensures the fire boots move smoothly and steadily on the conveyor platform 1. Fixed plates 3 are installed on both sides of the conveyor platform 1, and electric telescopic rods 4 are fixed to the fixed plates 3. By controlling the extension length of the electric telescopic rods 4, the distance between the limiting plates 5 can be precisely adjusted. This allows for flexible setting of appropriate limiting widths according to different specifications and sizes of fire boots, ensuring the fire boots remain in the correct position during transport and improving the accuracy and adaptability of the limiting mechanism. In the fire boot production and conveying system, the linkage control logic between the electric telescopic rod 4 and the conveyor roller 2 is as follows: the photoelectric sensor detects in real time whether the fire boot has entered the conveyor table 1. After triggering, the PLC immediately starts the conveyor roller 2 to run at the set speed, while the encoder synchronously monitors the conveying distance. When the fire boot moves to the preset adjustment range, the PLC, based on the pre-stored specification parameters or the scanned identification result, instructs the electric telescopic rod 4 to drive the limit plate 5 to synchronously extend and retract to the target width to achieve dynamic limiting. During the conveying process, if the encoder reports a position deviation, the PLC corrects it in real time by finely adjusting the extension and retraction of the electric telescopic rods 4 on both sides. When the front end of the fire boot approaches the cutting station, the conveyor roller 2 decelerates to a low speed and stops after it is fully in place. At this time, the electric telescopic rod 4 is pressurized to the set value based on the feedback from the pressure sensor to ensure that the fire boot is accurately fixed. After the cutting is completed, the PLC sequentially instructs the electric telescopic rod 4 to retract and reset, and the conveyor roller 2 to accelerate.

[0022] Working principle: During use, the fire boots are placed on the conveyor roller 2 for transport. After reaching the relevant position, the fixed plate 3, the electric telescopic rod 4, and the limiting plate 5 can perform corresponding limiting operations on the fire boots. Then, the driver 8 drives the cutter holder 9 and the internal blade 14 to move downwards for cutting. When the blade 14 contacts and cuts the material, it will be subjected to the upward reaction force of the material. This force will push the blade 14, the receiving plate 13, and the connecting block 12 upwards together, compressing the connecting spring 10 and retracting the guide telescopic rod 11. At this time, the sliding block 16 fixed to the back of the connecting block 12 moves upwards synchronously in the sliding groove 15, but the movement range is within the allowable range of the spring preload. Therefore, the sliding block 16, which rises together with the control frame 17, will not touch the control switch 1. 9. However, when the blade 14 suddenly breaks or is severely worn, its cutting resistance decreases sharply or even disappears. The rebound force of the connecting spring 10 will quickly push the connecting block 12 downward, and the sliding block 16 fixed thereto will also move rapidly downward in the sliding groove 15. The downward movement of the sliding block 16 will drive the control frame 17 on it to move downward synchronously. The top of the rapidly moving control frame 17 will hit and trigger the control switch 19 installed on the U-shaped sliding frame 7. After the control switch 19 is triggered, it will immediately send a signal to the clutch 18 to cut off the power transmission of the driver 8, causing the cutting device to stop working instantly. After replacing the new blade 14, the equipment is reset, the connecting spring 10 and the guide telescopic rod 11 return to the initial pre-compression state, and the entire control mechanism is ready for the next operation.

[0023] It should be noted that the electrical components and equipment mentioned above all use external power sources. The circuits, electronic components and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and there is no need to elaborate further.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0025] In addition, throughout this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. A cutting device for producing fire-fighting shoes with high safety, characterized in that: Includes a conveyor table (1) and a tool holder (9). The tool holder (9) has a control mechanism inside. The control mechanism includes a connecting spring (10), a guide telescopic rod (11), a connecting block (12), a receiving plate (13), a blade (14), a sliding block (16), and a control frame (17). One end of the connecting spring (10) is fixedly installed to the top of the inside of the tool holder (9). One end of the guide telescopic rod (11) is fixedly installed to the top of the inside of the tool holder (9). The connecting block (12) is fixedly installed to the top of the inside of the tool holder (9). The upper surface of the blade (14) is fixedly connected to the other end of the connecting spring (10) and the guide telescopic rod (11). The top of the receiving plate (13) is fixedly installed to the bottom of the connecting block (12). The top of the blade (14) is located at the bottom of the receiving plate (13). The blade holder (9) has a sliding groove (15) inside. The outer surface of the sliding block (16) is slidably installed to the inner wall of the sliding groove (15). The lower surface of the control frame (17) is fixedly installed to the upper surface of the sliding block (16).

2. The cutting device for producing fire-fighting shoes with high safety according to claim 1, characterized in that: Both sides of the upper surface of the conveyor table (1) are fixedly installed with fixing plates (3), and an electric telescopic rod (4) is fixedly installed on the back of the fixing plate (3). A limit plate (5) is fixedly installed at one end of the electric telescopic rod (4).

3. The cutting device for producing fire-fighting shoes with high safety as described in claim 1, characterized in that: The front of the sliding block (16) is fixedly installed on the back of the connecting block (12).

4. The cutting device for producing fire-fighting shoes with high safety according to claim 1, characterized in that: Electric slide rails (6) are fixedly installed on both the front and back sides of the conveyor table (1), and a U-shaped sliding frame (7) is slidably installed on the outer surface of the electric slide rails (6).

5. The cutting device for producing fire-fighting shoes with high safety according to claim 4, characterized in that: The top of the U-shaped sliding frame (7) is provided with a driver (8), and the power output end of the driver (8) is fixedly installed on the top of the tool holder (9).

6. The cutting device for producing fire-fighting shoes with high safety according to claim 4, characterized in that: The top of the U-shaped sliding frame (7) is provided with a clutch (18), which is electrically connected to the driver (8). The clutch (18) is provided with a control switch (19), which is raised to abut the top of the control frame (17) to control the switching operation of the clutch (18) and the driver (8).

7. The cutting device for producing fire-fighting shoes with high safety according to claim 1, characterized in that: The conveyor platform (1) is equipped with multiple sets of conveyor rollers (2) evenly arranged inside, which are used to convey fire shoes.

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