Sparkproof steel bar cutting machine
By using a combined structure of a push-pull rod and a clamping plate in the steel bar cutting machine, the steel bar is limited, which solves the problem of spark burns caused by the lack of limiting function of the steel bar in the existing technology, and improves the operational safety. .
Patent Information
- Application Number
- CN202420984665.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-09
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-05-09
AI Technical Summary
During use, existing spark-resistant steel bar cutting machines lack limiting function on the steel bars, which makes it easy for users to burn the hands of sparks.
A spark-proof steel bar cutting machine is designed, which uses a combined structure of a push-pull rod and a clamping plate. The clamping plate clamps the steel bar between the baffle and the clamping plate through the elastic action of the spring, thereby limiting the steel bar. Bit.
This design effectively avoids the need for users to place their hands near the cutting point to limit the position, thereby greatly reducing the risk of burns from sparks and improving operational safety.
Smart Images
Figure CN222370241U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of steel bar cutting machines, in particular to a spark-proof steel bar cutting machine. Background Art
[0002] Rebar refers to steel used for reinforced concrete and prestressed reinforced concrete. Its cross-section is circular, including plain round steel bars, ribbed steel bars, etc. A rebar cutting machine is required when cutting rebar.
[0003] In the prior art, the steel bar cutting machine is mainly composed of a placement table, a support column, a cutting groove, a motor, a handle, a switch button, a protective shell, a cutting blade and other multiple components. The protective shell can prevent sparks from flying upward when the cutting blade contacts the steel bar, thereby providing the steel bar cutting machine with a spark protection function, so that the face, hands and other skin exposed outside the clothes of the person using the steel bar cutting machine above the protective cover are protected from being burned by sparks.
[0004] However, the spark-proof steel bar cutting machine in the prior art lacks a limiting function for the steel bars during use, and the user is often required to limit the steel bars by hand to prevent the steel bars from shifting during cutting. The hands used to limit the steel bars are located below the protective cover and very close to the cutting point, which makes the hands used to limit the steel bars easily burned by sparks. Utility Model Content
[0005] The purpose of the utility model is to provide a spark-proof steel bar cutting machine to solve the problems raised in the above-mentioned background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a spark-proof steel bar cutting machine, comprising: a placing table, a protective cover mounting seat is fixed on the top of the placing table, a protective shell is rotatably connected to the top of the protective cover mounting seat, a cutting blade is arranged on the inner side of the protective shell, a handle is fixed on the surface of the protective shell, a switch button is arranged below the handle, a motor is arranged on the side of the protective shell, a drive shaft of the motor is connected to the cutting blade, a cutting groove is arranged on the surface of the placing table, a support column is fixed to the bottom end of the placing table, a fixing plate and a baffle are fixed to the top of the placing table, a socket is opened on the surface of the fixing plate, one end of a push-pull rod is movably plugged in the socket, a clamping plate is fixed to the other end of the push-pull rod, and a spring is sleeved on the rod body of the push-pull rod.
[0007] Preferably, the fixing plate and the baffle plate are both rectangular plate structures, a connecting plate is fixed to the top end of the fixing plate, the other end of the connecting plate is fixed to the surface of the baffle plate, and the bottom end of the connecting plate is against the surface of the clamping plate.
[0008] Preferably, the jacks are provided in two groups, and the two groups of jacks are symmetrically distributed about the fixing plate.
[0009] Preferably, a pull plate is fixed to one end of the push-pull rod away from the clamping plate, a steel cable is fixed to the other end of the pull plate, a lever is fixed to the other end of the steel cable, the bottom end of the lever is rotatably connected in the lever slot, and the lever slot is opened on the surface of the placement table.
[0010] Preferably, a handle is provided at the top end of the lever.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] The spark-proof steel bar cutting machine proposed by the utility model pulls the push-pull rod in the direction away from the baffle, and the push-pull rod drives the clamping plate to move in the same direction. The movement of the clamping plate compresses the spring, and then the steel bar is placed between the baffle and the clamping plate and the cutting point is located directly above the cutting groove. The push-pull rod is then released, so that the clamping plate is pushed toward the baffle under the elastic action of the spring, and finally the steel bar is clamped by the baffle and the clamping plate. This enables the spark-proof steel bar cutting machine to have the function of providing a limit for the steel bar, and there is no need to limit it by hand, thereby better preventing the sparks during cutting from causing burns to the skin of the operator. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the structure of the utility model;
[0014] Figure 2 It is a schematic diagram of the placement table structure;
[0015] Figure 3 It is a schematic diagram of the cross-sectional structure of the clamping plate;
[0016] Figure 4 for Figure 3 A schematic diagram of the enlarged structure in the middle.
[0017] In the figure: support column 1, cutting groove 2, protective cover mounting seat 3, placement table 4, fixing plate 5, connecting plate 6, pulling plate 7, baffle 8, motor 9, handle 10, switch button 11, protective shell 12, cutting blade 13, jack 14, lever slot 15, clamping plate 16, push-pull rod 17, spring 18, steel cable 19, lever 20. DETAILED DESCRIPTION
[0018] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0019] Embodiment 1
[0020] See also Figures 1 to 4 The utility model provides a technical solution: a spark-proof steel bar cutting machine, comprising: a placing table 4, a protective cover mounting seat 3 is fixed on the top of the placing table 4, a protective shell 12 is rotatably connected to the top of the protective cover mounting seat 3, a cutting blade 13 is arranged on the inner side of the protective shell 12, a handle 10 is fixed on the surface of the protective shell 12, a switch button 11 is arranged below the handle 10, a motor 9 is arranged on the side of the protective shell 12, a transmission shaft of the motor 9 is connected to the cutting blade 13, a cutting groove 2 is arranged on the surface of the placing table 4, a supporting column 1 is fixed to the bottom end of the placing table 4, a fixing plate 5 and a baffle 8 are fixed to the top of the placing table 4, a socket 14 is opened on the surface of the fixing plate 5, one end of a push-pull rod 17 is movably plugged in the socket 14, a clamping plate 16 is fixed to the other end of the push-pull rod 17, and a spring 18 is sleeved on the rod body of the push-pull rod 17.
[0021] In actual use, the push-pull rod 17 is pulled in the direction away from the baffle 8, and the push-pull rod 17 drives the clamping plate 16 to move in the same direction. The movement of the clamping plate 16 compresses the spring 18, and then the steel bar is placed between the baffle 8 and the clamping plate 16 and the cutting point is located directly above the cutting groove 2. The push-pull rod 17 is released, so that the clamping plate 16 is pushed toward the baffle 8 under the elastic action of the spring 18, and finally the steel bar is clamped by the baffle 8 and the clamping plate 16. This makes the spark-proof steel bar cutting machine have the function of providing a limit for the steel bar, and there is no need to limit it by hand. After the limit is completed, the spark-proof steel bar cutting machine is connected to an external power supply, and then the switch button 11 is pressed to start the motor 9 and drive the cutting blade 13 to rotate at high speed, and then the handle 10 is pressed downward to make the protective shell 12 rotate downward with the protective cover mounting seat 3 fixed on the top of the placement table 4 as the origin, and violent friction occurs between it and the steel bar, thereby completing the cutting of the steel bar, and the support column 1 has a cushioning effect on the placement table 4 to prevent the cutting blade 13 from cutting the ground.
[0022] Embodiment 2
[0023] On the basis of Example 1, in order to prevent the fixed plate 5 and the baffle 8 from bending, the fixed plate 5 and the baffle 8 are both rectangular plate structures, and a connecting plate 6 is fixed to the top of the fixed plate 5, the other end of the connecting plate 6 is fixed on the surface of the baffle 8, and the bottom end of the connecting plate 6 is against the surface of the clamping plate 16.
[0024] After the steel bar is clamped between the clamping plate 16 and the baffle plate 8, the reaction force of the steel bar on the clamping plate 16 is transmitted to the pull plate 7 through the spring 18. At the same time, the reaction force on the pull plate 7 is opposite to the reaction force of the steel bar on the baffle plate 8, and is in the direction away from each other. Therefore, a connecting plate 6 is installed between the fixed plate 5 and the baffle plate 8. When the pull plate 7 is subjected to a reaction force in the direction away from the baffle plate 8, the force is transmitted to the baffle plate 8 through the connecting plate 6, so that the baffle plate 8 is subjected to forces in two directions at the same time, which then offset each other and prevent the baffle plate 8 from bending. Similarly, when the baffle plate 8 is subjected to a reaction force in the direction away from the pull plate 7, the force is transmitted to the pull plate 7 through the connecting plate 6, so that the pull plate 7 is subjected to forces in two directions at the same time, which then offset each other and prevent the pull plate 7 from bending.
[0025] Embodiment 3
[0026] On the basis of Example 2, in order to facilitate pulling the push-pull rod 17, a pull plate 7 is fixed to one end of the push-pull rod 17 away from the clamping plate 16, a steel cable 19 is fixed to the other end of the pull plate 7, and a lever 20 is fixed to the other end of the steel cable 19. The bottom end of the lever 20 is rotatably connected to the lever groove 15, and the lever groove 15 is opened on the surface of the placement table 4. A handle is provided at the top of the lever 20, and two groups of sockets 14 are opened, and the two groups of sockets 14 are symmetrically distributed about the fixed plate 5.
[0027] When it is necessary to pull the push-pull rod 17, hold the handle at the top of the lever 20 and pull the lever 20 in the direction away from the baffle 8, so that the lever 20 rotates in the lever groove 15 in the direction away from the baffle 8. The rotation of the lever 20 causes the pull plate 7 to move in the same direction through the steel cable 19. The movement of the pull plate 7 causes the push-pull rods 17 in the two sets of jacks 14 to move in the direction away from the baffle 8 at the same time, thereby achieving the pulling of the push-pull rod 17. Through the lever principle, the force required to pull the push-pull rod 17 is greatly reduced, thereby facilitating the pulling of the push-pull rod 17.
[0028] In actual use, the push-pull rod 17 is pulled in the direction away from the baffle 8, and the push-pull rod 17 drives the clamping plate 16 to move in the same direction. The movement of the clamping plate 16 compresses the spring 18, and then the steel bar is placed between the baffle 8 and the clamping plate 16 and the cutting point is located directly above the cutting groove 2. The push-pull rod 17 is released, so that the clamping plate 16 is pushed toward the baffle 8 under the elastic action of the spring 18, and finally the steel bar is clamped by the baffle 8 and the clamping plate 16. This enables the spark-proof steel bar cutting machine to provide a limit function for the steel bar, and there is no need to limit it by hand, thereby better preventing the steel bar from being cut during cutting. Sparks can cause burns to the operator's skin; after the limit is completed, the spark-proof steel bar cutting machine is connected to an external power supply, and then the switch button 11 is pressed to start the motor 9 and drive the cutting blade 13 to rotate at high speed, and then the handle 10 is held and pressed downward, so that the protective shell 12 rotates downward with the protective cover mounting seat 3 fixed on the top of the placement table 4 as the origin, and violent friction occurs between the protective shell 12 and the steel bar, thereby completing the cutting of the steel bar, and the support column 1 has a cushioning effect on the placement table 4 to prevent the cutting blade 13 from cutting to the ground; after the steel bar is clamped between the clamping plate 16 and the baffle 8, the steel bar is clamped to the clamping plate 1 The reaction force of the steel bar on the baffle plate 8 is transmitted to the pull plate 7 through the spring 18. At the same time, the reaction force on the pull plate 7 is opposite to the reaction force on the baffle plate 8 by the steel bar, and is in the direction away from each other. Therefore, a connecting plate 6 is installed between the fixed plate 5 and the baffle plate 8. When the pull plate 7 is subjected to a reaction force in the direction away from the baffle plate 8, the force is transmitted to the baffle plate 8 through the connecting plate 6, so that the baffle plate 8 is subjected to forces in two directions at the same time, and then offset each other to prevent the baffle plate 8 from bending. Similarly, when the baffle plate 8 is subjected to a reaction force in the direction away from the pull plate 7, it is transmitted to the pull plate 7 through the connecting plate 6, so that the pull plate 7 is subjected to forces in two directions at the same time. The forces of the two groups of plug holes 14 are offset to prevent the pull plate 7 from bending. When the push-pull rod 17 needs to be pulled, the handle at the top of the lever 20 is held to pull the lever 20 in the direction away from the baffle 8, so that the lever 20 rotates in the lever groove 15 in the direction away from the baffle 8. The rotation of the lever 20 causes the pull plate 7 to move in the same direction through the steel cable 19. The movement of the pull plate 7 causes the push-pull rods 17 in the two groups of jacks 14 to move in the direction away from the baffle 8 at the same time, thereby realizing the pulling of the push-pull rod 17. Through the lever principle, the force required to pull the push-pull rod 17 is greatly reduced, thereby facilitating the pulling of the push-pull rod 17.
[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A spark-proof steel bar cutting machine, comprising: A placing table (4), a protective cover mounting seat (3) is fixed on the top of the placing table (4), a protective shell (12) is rotatably connected to the top of the protective cover mounting seat (3), a cutting blade (13) is arranged on the inner side of the protective shell (12), a handle (10) is fixed on the surface of the protective shell (12), a switch button (11) is arranged below the handle (10), a motor (9) is arranged on the side of the protective shell (12), and a transmission shaft of the motor (9) is connected to the cutting blade (13) A cutting groove (2) is arranged on the surface of the placing table (4), and a supporting column (1) is fixed to the bottom end of the placing table (4), characterized in that: a fixing plate (5) and a baffle (8) are fixed to the top end of the placing table (4), a plug hole (14) is opened on the surface of the fixing plate (5), one end of a push-pull rod (17) is movably inserted in the plug hole (14), a clamping plate (16) is fixed to the other end of the push-pull rod (17), and a spring (18) is sleeved on the rod body of the push-pull rod (17).
2. The spark-proof steel bar cutting machine according to claim 1, characterized in that: The fixing plate (5) and the baffle plate (8) are both rectangular plate structures. A connecting plate (6) is fixed to the top end of the fixing plate (5). The other end of the connecting plate (6) is fixed to the surface of the baffle plate (8). The bottom end of the connecting plate (6) is against the surface of the clamping plate (16).
3. The spark-proof steel bar cutting machine according to claim 1, characterized in that: The insertion holes (14) are provided in two groups, and the two groups of insertion holes (14) are symmetrically distributed with respect to the fixing plate (5).
4. The spark-proof steel bar cutting machine according to claim 1, characterized in that: A pull plate (7) is fixed to one end of the push-pull rod (17) away from the clamping plate (16), a steel cable (19) is fixed to the other end of the pull plate (7), a lever (20) is fixed to the other end of the steel cable (19), the bottom end of the lever (20) is rotatably connected to the lever groove (15), and the lever groove (15) is provided on the surface of the placement table (4).
5. The spark-proof steel bar cutting machine according to claim 4, characterized in that: The top end of the lever (20) is provided with a handle.