Straightening device for construction machine blade production
By incorporating a protective device into the straightening apparatus to cover the sharp end of the blade, the problem of accidental cuts to personnel during the straightening process is solved, thus improving safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG HIGHER BLADES TECH CO LTD
- Filing Date
- 2025-02-17
- Publication Date
- 2026-06-09
AI Technical Summary
During the straightening process of the cutting blade of construction machinery, the sharp right-angled part may accidentally touch personnel, causing scratches and affecting the safety of operation.
A straightening device including a protective device is designed. The sharp end of the blade is wrapped with a telescopic rod and a rectangular cover to prevent it from coming into contact with the human body. The protective device is fixed to the frame through a connecting device to ensure the safe advancement of the blade during the straightening process.
It effectively prevents the sharp end of the blade from coming into contact with the human body, improving the safety of workers and reducing the risk of accidental cuts.
Smart Images

Figure CN224333130U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of straightening equipment technology, and in particular to straightening devices. Background Technology
[0002] Engineering machinery blade straightening equipment is a special equipment for straightening blades used in engineering machinery. This equipment uses straightening rollers to squeeze the blades, changing their straightness to achieve the purpose of correction, thereby improving their accuracy and performance.
[0003] Existing straightening equipment for manufacturing cutting blades in engineering machinery typically employs manual rotation of a rotary rod to adjust the position of the upper rollers. This allows the upper rollers to adjust the distance between themselves and the lower rollers according to the thickness of the cutting blade. Then, a motor and chain drive the lower rollers on the frame to rotate. The cutting blade is then placed within the distance between the lower and upper rollers, and the lower rollers transport the placed cutting blade by rotating. Simultaneously, the upper and lower rollers work together to subject the cutting blade to various forms of compression, bending, and flattening deformation, thereby achieving the straightening purpose.
[0004] However, because the right-angled position of the blade is relatively sharp, it may accidentally touch a person standing on one side of the frame during the forward movement of the blade, causing the sharp part of the blade to cut the person and affecting the safety of the personnel. Utility Model Content
[0005] The technical problem this invention aims to solve is that the sharp right-angle position of the blade may accidentally touch a person standing on one side of the frame during the forward movement of the blade, causing the sharp part of the blade to cut the person and affecting the safety of the worker.
[0006] The technical solution adopted by this utility model to solve its technical problem is: a straightening device for the production of cutting blades for engineering machinery, including a frame, a lower row of rollers arranged on one side of the frame, an upper row of rollers arranged on the side of the frame near the lower row of rollers, a motor arranged on one side of the frame, the output end of the motor being fixedly connected to the lower row of rollers, a rotating rod arranged on one side of the frame, the rotating rod being connected to the upper row of rollers, and a protective device arranged on one side of the frame to wrap the surface of the cutting blade and prevent the sharp right-angle end of the cutting blade from contacting the human body.
[0007] The effect achieved by the above components is as follows: First, manually rotate the rotary rod to adjust the position of the upper roller, so that the upper roller adjusts the distance between it and the lower roller according to the thickness of the blade. Then, use a motor and chain to drive the lower roller on the frame to rotate. Subsequently, place the blade into the distance between the lower roller and the upper roller. Then, the lower roller transports the placed blade by rotating. While the blade is being transported, the upper roller and the lower roller work together to make the blade withstand various compressions, bending, flattening and other deformations, thereby achieving the purpose of straightening.
[0008] Preferably, the protective device includes a telescopic rod, a connecting device is provided between the telescopic rod and the frame, a rectangular rod is fixedly connected to the moving end of the telescopic rod, a return spring is sleeved on the surface of the telescopic rod, one end of the return spring is fixedly connected to the telescopic rod, the other end of the return spring is fixedly connected to the rectangular rod, a rectangular cover is fixedly connected to one side of the rectangular rod, and the rectangular cover corresponds to the gap position between the lower roller and the upper roller.
[0009] The effect achieved by the above components is as follows: By setting up a protective device, the telescopic rod is first assembled and fixed to the frame through a connecting device, so that the rectangular cover is fixed at a position corresponding to the gap between the upper and lower rollers. When the blade is pushed out by the lower roller, the blade enters the rectangular cover and pushes the rectangular cover, causing the rectangular cover to move the rectangular rod away from the frame. The rectangular rod then drives the telescopic rod to extend, so that the rectangular cover covers the right-angled sharp end of the blade during the blade's advancement, separating the blade's surface from the outside and preventing the sharp end of the blade from contacting the human body. This achieves personnel protection, reduces the possibility of the blade accidentally touching personnel standing on one side of the frame during the forward advancement, thus improving the safety of the workers.
[0010] Preferably, a reinforcing plate is fixedly connected to one side of the rectangular rod, and the reinforcing plate is fixedly connected to the rectangular cover.
[0011] The effect achieved by the above components is that by setting up the reinforcing plate, the reinforcing plate can provide auxiliary support for the rectangular rod, while improving the connection strength between the rectangular rod and the rectangular cover, and reducing the possibility of the rectangular rod separating from the rectangular cover under stress.
[0012] Preferably, a rubber pad is fixedly connected to the inner wall of the rectangular cover, and the rubber pad completely covers the inner wall of the rectangular cover.
[0013] The effect achieved by the above components is that by setting rubber pads, the rubber pads can separate the surface of the blade plate from the inner wall of the rectangular cover, thereby reducing the wear caused by the blade plate on the inner wall of the rectangular cover during the advancement process.
[0014] Preferably, the rectangular cover has two circular holes symmetrically opened on its surface. The inner walls of the two circular holes are slidably connected to spring rods. The other end of the springs in the two spring rods is fixedly connected to the rectangular cover. The adjacent ends of the two spring rods are fixedly connected to pressure plates. The surface of the pressure plates is trapezoidal.
[0015] The effect achieved by the above components is as follows: by setting pressure plates, when the blade plate moves to the position of being inserted into the rectangular cover, the blade plate pushes the two pressure plates to move. When the blade plate moves to the position of being fully inserted into the rectangular cover, under the reaction force of the spring in the spring rod, the two spring rods push the two pressure plates to move in opposite directions. Under the push of the spring rods, the two pressure plates move towards the blade plate and squeeze the blade plate, thereby achieving auxiliary reinforcement of the blade plate and reducing the possibility of the blade plate shaking significantly or detaching from the rectangular cover after entering the rectangular cover.
[0016] Preferably, one end of each of the two spring rods is fixedly connected to a pull rod, and the surface of the pull rod is rectangular.
[0017] The effect achieved by the above components is that by setting up the pull rod, the contact area between the person's hand and the spring rod can be increased, thereby improving the convenience of manually pulling up the spring rod.
[0018] Preferably, the connecting device includes a frame, which is fixedly connected to the frame body. A threaded hole is provided on one side of the frame, and a bolt is threadedly connected to the inner wall of the threaded hole. A round hole insert is fixedly connected to one side of the telescopic rod. The surface of the round hole insert is slidably connected to the inner wall of the frame. The size and shape of the bolt surface are adapted to the size and shape of the inner wall of the round hole insert.
[0019] The effect achieved by the above components is as follows: by setting up a connecting device, the telescopic rod is first moved manually, causing the telescopic rod to move the round hole insert. When the round hole insert moves to the position where it is fully inserted into the card frame, the inner wall of the threaded hole coincides with the inner wall of the round hole insert. At this time, the bolt is manually turned so that the bolt turns into the threaded hole and the interior of the round hole insert to fix the position of the round hole insert and the telescopic rod, thereby achieving the assembly and fixation between the protective device and the frame. At the same time, the protective device can be freely disassembled later, improving the flexibility of use of the protective device and the convenience of later maintenance.
[0020] Preferably, one end of the bolt is fixedly connected to a screw block, and the surface of the screw block is provided with multiple anti-slip protrusions.
[0021] The effect achieved by the above components is that by setting the tightening block, the contact area of the bolt can be increased, improving the convenience of manual turning of the bolt.
[0022] The beneficial effects of this utility model are:
[0023] By installing protective devices, the sharp ends of the blades can be wrapped during the advancement process, preventing the sharp ends from coming into contact with the human body. This reduces the chances of the blades accidentally touching personnel standing on one side of the frame during the forward advancement process, thus reducing the risk of injury from the sharp ends of the blades and improving the safety of the workers. Attached Figure Description
[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0025] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0026] Figure 2 This is a three-dimensional structural diagram of the pressure plate of this utility model;
[0027] Figure 3 This is a three-dimensional structural diagram of the rectangular cover of this utility model;
[0028] Figure 4 This is a three-dimensional structural diagram of the card frame of this utility model.
[0029] Legend: 1. Frame; 2. Lower roller; 3. Motor; 4. Upper roller; 5. Rotary rod; 6. Protective device; 61. Telescopic rod; 62. Return spring; 63. Rectangular rod; 64. Rectangular cover; 65. Rubber pad; 66. Reinforcing plate; 67. Circular hole; 68. Spring rod; 69. Pressure plate; 610. Pull rod; 7. Connecting device; 71. Clip frame; 72. Threaded hole; 73. Bolt; 74. Tightening block; 75. Circular hole insert. Detailed Implementation
[0030] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.
[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0032] Figure 1-4The straightening device for producing cutting blades for engineering machinery shown includes a frame 1. A lower roller 2 is installed on one side of the frame 1, and an upper roller 4 is installed on the side of the frame 1 near the lower roller 2. A motor 3 is installed on one side of the frame 1, and the output end of the motor 3 is fixedly connected to the lower roller 2. A rotating rod 5 is installed on one side of the frame 1, and the rotating rod 5 is connected to the upper roller 4. A protective device 6 is installed on one side of the frame 1 to wrap the surface of the cutting blade and prevent the sharp right-angle end of the cutting blade from contacting the human body. First, the rotating rod 5 is manually rotated to adjust the position of the upper roller 4, so that the upper roller 4 adjusts the distance between the upper roller 4 and the lower roller 2 according to the thickness of the cutting blade. Then, the motor 3 and the chain drive the lower roller 2 on the frame 1 to rotate. Then, the cutting blade is placed in the distance between the lower roller 2 and the upper roller 4. The lower roller 2 then transports the placed cutting blade by rotating. While the cutting blade is being transported, the upper roller 4 and the lower roller 2 work together to make the cutting blade withstand various compression, bending, flattening and other deformations, thereby achieving the purpose of straightening.
[0033] Figure 2 and Figure 3 The protective device 6 shown includes a telescopic rod 61, a connecting device 7 between the telescopic rod 61 and the frame 1, a rectangular rod 63 fixedly connected to the moving end of the telescopic rod 61, a return spring 62 sleeved on the surface of the telescopic rod 61, one end of the return spring 62 fixedly connected to the telescopic rod 61, and the other end of the return spring 62 fixedly connected to the rectangular rod 63. A rectangular cover 64 is fixedly connected to one side of the rectangular rod 63, and the rectangular cover 64 corresponds to the gap position between the lower roller 2 and the upper roller 4. By setting the protective device 6, the telescopic rod 61 is first assembled and fixed to the frame 1 through the connecting device 7, so that the rectangular cover 64 is fixed to the upper roller 4 and the lower roller. The gap 2 corresponds to the position where, when the blade is pushed out by the lower roller 2, it enters the rectangular cover 64 and pushes the rectangular cover 64. This causes the rectangular cover 64 to move the rectangular rod 63 away from the frame 1, and the rectangular rod 63 to extend the telescopic rod 61. As the blade is pushed forward, the rectangular cover 64 covers its right-angled sharp end, separating the surface of the blade from the outside world and preventing the sharp end of the blade from contacting the human body. This protects personnel and reduces the chance of the blade accidentally touching a person standing on the side of the frame 1 during the forward movement, thus improving the safety of the workers.
[0034] Figure 2 and Figure 3A reinforcing plate 66 is fixedly connected to one side of the rectangular rod 63 shown. The reinforcing plate 66 is fixedly connected to the rectangular cover 64. By setting the reinforcing plate 66, the reinforcing plate 66 can provide auxiliary support for the rectangular rod 63, and at the same time improve the connection strength between the rectangular rod 63 and the rectangular cover 64, reducing the possibility of separation between the rectangular rod 63 and the rectangular cover 64 under force. A rubber pad 65 is fixedly connected to the inner wall of the rectangular cover 64. The rubber pad 65 completely covers the inner wall of the rectangular cover 64. By setting the rubber pad 65, the rubber pad 65 can separate the blade surface from the inner wall of the rectangular cover 64, reducing the wear caused by the blade to the inner wall of the rectangular cover 64 during the advancement process.
[0035] Figure 2 and Figure 3 The rectangular cover 64 shown has two symmetrically arranged circular holes 67 on its surface. Spring rods 68 are slidably connected to the inner walls of both circular holes 67. The other ends of the springs in both spring rods 68 are fixedly connected to the rectangular cover 64. Pressure plates 69 are fixedly connected to the adjacent ends of the two spring rods 68. The surfaces of the pressure plates 69 are trapezoidal. By setting the pressure plates 69, when the blade moves to the position where it is inserted into the rectangular cover 64, the blade pushes the two pressure plates 69 to move. When the blade moves to the position where it is fully inside the rectangular cover 64, the reaction force of the springs in the spring rods 68 causes the two springs to... The rod 68 pushes the two pressure plates 69 to move in opposite directions, so that the two pressure plates 69 move closer to the blade plate under the push of the spring rod 68 and squeeze the blade plate, thereby achieving auxiliary reinforcement of the blade plate and reducing the possibility of the blade plate shaking or detaching from the rectangular cover 64 after entering the rectangular cover 64. One end of each of the two spring rods 68 is fixedly connected to a pull rod 610. The surface of the pull rod 610 is rectangular. By setting the pull rod 610, the contact area between the person's hand and the spring rod 68 can be increased, improving the convenience of the person manually pulling out the spring rod 68.
[0036] Figure 3 and Figure 4The connecting device 7 shown includes a frame 71, which is fixedly connected to the frame 1. A threaded hole 72 is provided on one side of the frame 71, and a bolt 73 is threadedly connected to the inner wall of the threaded hole 72. A round hole insert 75 is fixedly connected to one side of the telescopic rod 61. The surface of the round hole insert 75 is slidably connected to the inner wall of the frame 71. The size and shape of the bolt 73 are adapted to the size and shape of the inner wall of the round hole insert 75. By setting the connecting device 7, the telescopic rod 61 is first manually moved, so that the telescopic rod 61 drives the round hole insert. 75 moves, and when the round hole insert 75 moves to the position where it is fully inserted into the card frame 71, the inner wall of the threaded hole 72 coincides with the inner wall of the round hole insert 75. At this time, the bolt 73 is manually rotated so that the bolt 73 is turned into the interior of the threaded hole 72 and the round hole insert 75 to fix the position of the round hole insert 75 and the telescopic rod 61, thereby achieving the assembly and fixation between the protective device 6 and the frame 1. At the same time, the protective device 6 can be freely disassembled later, which improves the flexibility of use of the protective device 6 and the convenience of later maintenance.
[0037] Figure 3 and Figure 4 One end of the bolt 73 shown is fixedly connected to a screw block 74. The surface of the screw block 74 is provided with multiple anti-slip protrusions. By setting the screw block 74, the contact area of the bolt 73 can be increased, which improves the convenience of manually turning the bolt 73.
[0038] Working principle: First, manually rotate the rotary rod 5 to adjust the position of the upper roller 4, so that the upper roller 4 adjusts the distance between itself and the lower roller 2 according to the thickness of the blade. Then, the motor 3, in conjunction with the chain, drives the lower roller 2 on the frame 1 to rotate. Subsequently, the blade is placed into the distance between the lower roller 2 and the upper roller 4. Then, the lower roller 2 transports the placed blade by rotating. While the blade is being transported, the upper roller 4 and the lower roller 2 work together to make the blade withstand various deformations such as compression, bending, and flattening, thereby achieving the purpose of straightening.
[0039] First, manually move the telescopic rod 61, causing it to move the round hole insert 75. When the round hole insert 75 is fully inserted into the frame 71, the inner wall of the threaded hole 72 coincides with the inner wall of the round hole insert 75. At this point, manually rotate the bolt 73, causing it to rotate into the threaded hole 72 and the round hole insert 75 to fix the position of the round hole insert 75 and the telescopic rod 61, thereby achieving the assembly and fixation between the protective device 6 and the frame 1. At this time, the rectangular cover 64 is fixed at the position corresponding to the gap between the upper roller 4 and the lower roller 2. When the blade is pushed out by the lower roller 2, it enters the rectangular cover 64 and... Pushing the rectangular cover 64 causes the springs in the spring rods 68 to push the two pressure plates 69 to move in opposite directions. The pressure plates 69 move closer to the blade plate and press against it, reinforcing the blade plate. At the same time, the rectangular cover 64, pushed by the blade plate, moves the rectangular rod 63 away from the frame 1. The rectangular rod 63 then extends the telescopic rod 61, causing the rectangular cover 64 to wrap around the sharp right-angled end of the blade plate as it is pushed forward. This isolates the surface of the blade plate from the outside environment and prevents the sharp end of the blade plate from contacting the human body, thus protecting the personnel.
[0040] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A straightening device for producing cutting blades for engineering machinery, comprising a frame (1), characterized in that: A lower roller (2) is provided on one side of the frame (1), and an upper roller (4) is provided on the side of the frame (1) near the lower roller (2). A motor (3) is provided on one side of the frame (1), and the output end of the motor (3) is fixedly connected to the lower roller (2). A rotating rod (5) is provided on one side of the frame (1), and the rotating rod (5) is connected to the upper roller (4). A protective device (6) is provided on one side of the frame (1) to wrap the surface of the blade and prevent the right-angled sharp end of the blade from contacting the human body.
2. The straightening device for producing cutting blades for engineering machinery according to claim 1, characterized in that: The protective device (6) includes a telescopic rod (61), and a connecting device (7) is provided between the telescopic rod (61) and the frame (1). A rectangular rod (63) is fixedly connected to the moving end of the telescopic rod (61). A return spring (62) is sleeved on the surface of the telescopic rod (61). One end of the return spring (62) is fixedly connected to the telescopic rod (61), and the other end of the return spring (62) is fixedly connected to the rectangular rod (63). A rectangular cover (64) is fixedly connected to one side of the rectangular rod (63). The rectangular cover (64) corresponds to the gap position between the lower roller (2) and the upper roller (4).
3. The straightening device for producing cutting blades for engineering machinery according to claim 2, characterized in that: A reinforcing plate (66) is fixedly connected to one side of the rectangular rod (63), and the reinforcing plate (66) is fixedly connected to the rectangular cover (64).
4. The straightening device for producing cutting blades for engineering machinery according to claim 2, characterized in that: A rubber pad (65) is fixedly connected to the inner wall of the rectangular cover (64), and the rubber pad (65) completely covers the inner wall of the rectangular cover (64).
5. The straightening device for producing cutting blades for engineering machinery according to claim 2, characterized in that: The rectangular cover (64) has two circular holes (67) symmetrically opened on its surface. The inner walls of the two circular holes (67) are slidably connected to spring rods (68). The other ends of the springs in the two spring rods (68) are fixedly connected to the rectangular cover (64). The adjacent ends of the two spring rods (68) are fixedly connected to pressure plates (69). The surface of the pressure plates (69) is trapezoidal.
6. The straightening device for producing cutting blades for engineering machinery according to claim 5, characterized in that: Each of the two spring rods (68) has a pull rod (610) fixedly connected to one end, and the surface of the pull rod (610) is rectangular.
7. The straightening device for producing cutting blades for engineering machinery according to claim 2, characterized in that: The connecting device (7) includes a frame (71), which is fixedly connected to the frame (1). A threaded hole (72) is provided on one side of the frame (71), and a bolt (73) is threadedly connected to the inner wall of the threaded hole (72). A round hole plug (75) is fixedly connected to one side of the telescopic rod (61). The surface of the round hole plug (75) is slidably connected to the inner wall of the frame (71). The size and shape of the bolt (73) are adapted to the size and shape of the inner wall of the round hole plug (75).
8. The straightening device for producing cutting blades for engineering machinery according to claim 7, characterized in that: One end of the bolt (73) is fixedly connected to a screw block (74), and the surface of the screw block (74) is provided with multiple anti-slip protrusions.