Plate shearing machine for cold-roll steel plate production

Abstract

The utility model relates to the technical field of plate shearing machines, and discloses a plate shearing machine for cold-roll steel plate production. By arranging a positioning assembly, in the process that a pressing plate drives a shear knife to move downwards, when a positioning roller rolls on the surface of a cold-rolled steel sheet and the bottom surface of the positioning roller moves to the left end edge of the cold-rolled steel sheet, a hinged plate is pulled through a connecting rod to be matched with an L-shaped plate and a gear along with continuous downward pressing of a positioning frame; the main connecting block and the auxiliary connecting block move towards the side far away from the center of the positioning frame, so that the inserting block is separated from the limiting of the inserting groove, the limiting between the left side and the right side of the positioning frame and the pressing plate is relieved, and at the moment, the pressing plate can continuously move downwards and is matched with the shearing knife to shear the cold-roll steel plate; the positioning assembly is kept in a relatively fixed state in the shearing cover and is matched with the auxiliary roller, the supporting roller and the positioning roller to achieve the positioning effect on the cold-roll steel plate in the shearing working process, and the shearing machining quality of the device is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of shearing machine technology, specifically a shearing machine for cold-rolled steel plate production. Background Technology

[0002] Cold-rolled steel sheets are made from hot-rolled steel coils. After pickling to remove oxide scale, they are continuously cold-rolled to produce hard-rolled coils. Due to the work hardening caused by continuous cold deformation, the strength and hardness of the hard-rolled coils increase while their toughness and plasticity decrease. As a result, their stamping performance deteriorates, and they can only be used for parts with simple deformation. In actual production, cold-rolled steel sheets usually need to be cut by a shearing machine to make them into suitable sizes.

[0003] According to a public notice (Announcement No.: CN217859000U) of a cold-rolled steel plate shearing machine with an automatic feeding mechanism, the above application uses a rotating mechanism to drive multiple conveying rollers to rotate, thereby driving the steel plate on its surface to be conveyed through a through groove into the interior of the shearing machine housing, where it is then sheared by the shearing mechanism. This replaces the traditional feeding method of cold-rolled steel plate shearing machines, avoiding the problems of high production costs and low production efficiency caused by manual feeding.

[0004] However, in actual use, although the shearing machine can press down and fix the cold-rolled steel sheet during shearing, the left end (exit end) of the cold-rolled steel sheet is prone to positional deviation from the pressing positioning structure during the pressing process. This results in different contact efficiencies between the left and right sides of the shearing machine's cutter and the cold-rolled steel sheet, causing the cold-rolled steel sheet to shift laterally on the shearing machine. Consequently, the cut of the cold-rolled steel sheet becomes uneven during shearing, reducing the processing quality of the cold-rolled steel sheet. In view of this, we propose a shearing machine for cold-rolled steel sheet production. Utility Model Content

[0005] The purpose of this utility model is to provide a shearing machine for cold-rolled steel plate production to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a shearing machine for cold-rolled steel plate production, comprising a machine body, a drive motor fixedly installed on the side wall of the machine body, a transmission roller fixedly connected to the output end of the drive motor, a shearing cover fixedly installed on the upper surface of the machine body, a hydraulic cylinder fixedly installed on the top outer wall of the shearing cover, a pressure plate fixedly connected to the output end of the hydraulic cylinder through the top inner wall of the shearing cover, a shearing blade fixedly installed on the lower surface of the pressure plate, a positioning component provided on the outer side of the pressure plate, and a locking component provided inside the shearing cover, the positioning component comprising:

[0007] A positioning frame is slidably mounted on the inner wall of the shearing cover. An auxiliary plate is hinged to the inner wall of the positioning frame. An auxiliary roller is rotatably connected to the bottom end of the auxiliary plate. A guide groove is provided on the inner wall of the positioning frame. The top end of a hinge plate is movably connected to the inside of the guide groove. A positioning roller is rotatably connected to the bottom end of the hinge plate. A protruding rib is fixedly installed on the arc-shaped outer wall of the positioning roller.

[0008] A support plate is hinged to the side wall of a hinge plate. A support roller is rotatably connected to the bottom end of the support plate. A connecting spring is movably connected between the support plate and the side wall of the hinge plate. One end of a connecting rod is movably connected to the top end of the hinge plate. A main connecting block is hinged to the other end of the connecting rod. An insert block is fixedly installed on the outer wall of the main connecting block near the center of the positioning frame. One end of an L-shaped plate is fixedly connected to the upper surface of the main connecting block. A gear is rotatably installed on the inner wall of the positioning frame. A secondary connecting block is slidably installed on the inner wall of the positioning frame away from the main connecting block. A slot is provided on the side wall of the pressure plate.

[0009] Preferably, the hinge plate is located on the side of the positioning frame away from the auxiliary plate, and a guide rod is installed through and fixedly mounted on the top inner wall of the hinge plate. The guide rod is located inside the guide groove. In addition, the guide groove is shaped like a "U". During the process of the positioning frame pressing down, the positioning roller will drive the hinge plate to press down. At this time, the top of the hinge plate will move down a certain distance along the inner wall of the guide groove through the guide rod.

[0010] Preferably, the hinge plate has a slot at the top center with a width that matches the width of the connecting rod, and the guide rod is hinged to the connecting rod through the slot.

[0011] Preferably, the lower surface of the L-shaped plate near the secondary connecting block has teeth that mesh with the gear to achieve transmission, and the upper surface of the secondary connecting block has another set of teeth that mesh with the lower surface of the gear to achieve transmission. This allows the movement of the main connecting block to coordinate with the transmission of the L-shaped plate and the gear, thereby causing the secondary connecting block to move synchronously away from the center of the positioning frame.

[0012] Preferably, the locking assembly includes a transmission rod, one end of which is hinged to the end of the main connecting block, and the other end of which is hinged to a locking block. A round rod is fixedly installed on the inner wall of the positioning frame. A straight groove is formed on the inner wall of the transmission rod, and the round rod is disposed inside the straight groove. A locking groove is formed on the inner side wall of the shear cover.

[0013] Preferably, the locking block and the locking groove are arranged in the same vertical plane, and the bottom inner surface of the locking groove is provided with several serrated grooves, so that the locking block can limit the positioning frame in the vertical direction after being inserted into the locking groove.

[0014] Compared with the prior art, this utility model provides a shearing machine for cold-rolled steel plate production, which has the following advantages:

[0015] 1. This shearing machine for cold-rolled steel sheet production is equipped with a positioning component. As the pressure plate drives the shearing blade downwards, the positioning roller rolls on the surface of the cold-rolled steel sheet. When the bottom surface of the positioning roller moves to the left edge of the cold-rolled steel sheet, the positioning frame continues to press down. The hinge plate is pulled by the connecting rod, and in conjunction with the L-shaped plate and gear, the main connecting block and the auxiliary connecting block move away from the center of the positioning frame. This causes the insert block to disengage from the slot, and the positioning frame is released from its constraint with the pressure plate on both sides. At this time, the pressure plate can continue to move downwards and work with the shearing blade to shear the cold-rolled steel sheet. The positioning component remains relatively fixed inside the shearing cover, and works with the auxiliary roller, support roller and positioning roller to achieve the positioning effect of the cold-rolled steel sheet during the shearing process, ensuring the shearing quality of the device.

[0016] 2. This shearing machine for cold-rolled steel sheet production is equipped with a locking component. When the main connecting block and the auxiliary connecting block move towards the side away from the center of the positioning frame, the cooperation of the round rod and the straight groove causes the transmission rod to exert a pushing force on the locking block away from the positioning frame, prompting it to enter the locking groove. This limits the positioning frame in the vertical direction, thereby ensuring the downward positioning effect of the positioning frame, auxiliary roller, positioning roller and support roller on the cold-rolled steel sheet, and thus ensuring the stability and processing accuracy of the cold-rolled steel sheet during shearing. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0018] Figure 2 This is a schematic cross-sectional view of the shear shield structure of this utility model;

[0019] Figure 3 This is a partial exploded view of the positioning component of this utility model;

[0020] Figure 4 This is a partial three-dimensional schematic diagram of the positioning roller, support roller, and auxiliary roller of this utility model;

[0021] Figure 5 This is a partial three-dimensional structural diagram of the positioning component of this utility model;

[0022] Figure 6 This is a partial three-dimensional structural diagram of the locking component of this utility model.

[0023] In the diagram: 1. Machine body; 2. Drive motor; 3. Transmission roller; 4. Shearing cover; 5. Hydraulic cylinder; 6. Pressure plate; 7. Shearing blade; 8. Positioning assembly; 81. Positioning frame; 82. Auxiliary plate; 83. Auxiliary roller; 84. Guide groove; 85. Hinge plate; 86. Positioning roller; 861. Protruding rib; 87. Support plate; 88. Support roller; 89. Connecting spring; 810. Connecting rod; 811. Main connecting block; 812. Insert block; 813. L-shaped plate; 814. Gear; 815. Secondary connecting block; 816. Slot; 9. Locking assembly; 91. Transmission rod; 92. Locking block; 93. Round rod; 94. Straight groove; 95. Locking groove. Detailed Implementation

[0024] like Figures 1-6 As shown, this utility model provides a technical solution: a shearing machine for cold-rolled steel plate production, including a machine body 1, a drive motor 2 fixedly installed on the side wall of the machine body 1, a transmission roller 3 fixedly connected to the output end of the drive motor 2, a shearing cover 4 fixedly installed on the upper surface of the machine body 1, a hydraulic cylinder 5 fixedly installed on the top outer wall of the shearing cover 4, a pressure plate 6 fixedly connected to the output end of the hydraulic cylinder 5 through the top inner wall of the shearing cover 4, a shearing blade 7 fixedly installed on the lower surface of the pressure plate 6, and a positioning component 8 provided on the outer side of the pressure plate 6. The positioning component 8 includes a positioning frame 81, an auxiliary plate 82, an auxiliary roller 83, a guide groove 84, a hinge plate 85, a positioning roller 86, a protruding rib 861, a support plate 87, a support roller 88, a connecting spring 89, a connecting rod 810, a main connecting block 811, an insert block 812, an L-shaped plate 813, a gear 814, a secondary connecting block 815, and a slot 816.

[0025] In one embodiment of this utility model, a positioning frame 81 is slidably mounted on the inner wall of a shear shield 4. An auxiliary plate 82 is hinged to the inner wall of the positioning frame 81, and an auxiliary roller 83 is rotatably connected to the bottom end of the auxiliary plate 82. A guide groove 84 is provided on the inner wall of the positioning frame 81, and the top end of a hinge plate 85 is movably connected to the inside of the guide groove 84. A positioning roller 86 is rotatably connected to the bottom end of the hinge plate 85. A protruding rib 861 is fixedly installed on the arc-shaped outer wall of the positioning roller 86. A support plate 87 is hinged to the side wall of the hinge plate 85, and a support roller 88 is rotatably connected to the bottom end of the support plate 87. A connecting spring 89 is movably connected between 87 and the side wall of the hinge plate 85. One end of the connecting rod 810 is movably connected to the top of the hinge plate 85. The other end of the connecting rod 810 is hinged to the main connecting block 811. An insert block 812 is fixedly installed on the outer wall of the main connecting block 811 near the center of the positioning frame 81. One end of the L-shaped plate 813 is fixedly connected to the upper surface of the main connecting block 811. A gear 814 is rotatably installed on the inner wall of the positioning frame 81. A secondary connecting block 815 is slidably installed on the inner wall of the end of the positioning frame 81 away from the main connecting block 811. A slot 816 is provided on the side wall of the pressure plate 6.

[0026] Furthermore, multiple sets of transmission rollers 3 are arranged in a linear array and evenly distributed on the inner wall of the machine body 1. A transmission wheel is fixedly sleeved on the outer surface of the end of the transmission roller 3 away from the drive motor 2, and a synchronous belt is connected to the outer side of the transmission wheel. At the same time, the corresponding transmission wheels at the ends of two adjacent sets of transmission rollers 3 are connected, so that when the drive motor 2 starts, it can drive the multiple sets of transmission rollers 3 inside the machine body 1 to rotate in the same direction and at the same speed, thereby realizing the horizontal conveying of the cold-rolled steel sheet. In addition, the pressure plate 6 is arranged horizontally, and the pressure plate 6 and the shearing blade 7 are both located at the center of the shearing cover 4, so that the cold-rolled steel sheet can be cut by the shearing blade 7 after passing inside the conveying blade shearing cover 4, thereby realizing the shearing processing operation of the cold-rolled steel sheet.

[0027] Additionally, please refer to the instruction manual appendix. Figures 2-6 In this invention, the positioning frame 81 is sleeved on the outside of the pressure plate 6, allowing relative sliding between the positioning frame 81 and the pressure plate 6 in the vertical direction. Specifically, a hinge groove with a width matching the width of the auxiliary plate 82 is provided on the side wall of the positioning frame 81, so that when the positioning frame 81 is pressed down, the auxiliary roller 83 contacts the surface of the cold-rolled steel plate, causing the auxiliary plate 82 to rotate. Furthermore, a spiral spring is sleeved on the outside of the rotating shaft connecting the auxiliary plate 82 and the positioning frame 81, so that the auxiliary plate 82 always has a tendency to rotate in the opposite direction to achieve a reset motion during the deflection process between it and the positioning frame 81. That is, during the pressing down of the positioning frame 81, the auxiliary roller 83 always adheres to and presses against the surface of the cold-rolled steel plate to achieve positioning of the cold-rolled steel plate. Specifically, the hinge plate 85 is located on the side of the positioning frame 81 away from the auxiliary plate 82, and a guide rod is installed through and fixedly mounted on the top inner wall of the hinge plate 85. The guide rod is located inside the guide groove 84. In addition, the guide groove 84 is shaped like a "U". During the pressing down of the positioning frame 81, the hinge plate 85 will first deflect with the guide rod at its top as the rotation center. Then, when the bottom surface of the positioning roller 86 moves to the left edge of the cold-rolled steel plate, as the positioning frame 81 continues to press down, the positioning roller 86 will cause the hinge plate 85 to press down. At this time, the top of the hinge plate 85 will move down a certain distance along the inner wall of the guide groove 84 through the guide rod, so that the bottom surface of the positioning roller 86 will finally adhere to the upper surface of the machine body 1.

[0028] Meanwhile, a slot with a width matching the width of the connecting rod 810 is provided at the center of the top of the hinge plate 85. This slot allows the guide rod to hinge with the connecting rod 810. When the hinge plate 85 moves downward a certain distance along the guide groove 84, the connecting rod 810 pulls the main connecting block 811 away from the center of the positioning frame 81. This causes the insert block 812, originally inserted into the slot 816, to disengage from the slot 816. Furthermore, the lower surface of the L-shaped plate 813 near the secondary connecting block 815 has teeth that mesh with the gear 814 to achieve transmission. The upper surface of the secondary connecting block 815 also has another set of teeth that mesh with the lower surface of the gear 814 to achieve transmission, thus allowing the main connecting block... The movement of 811, in conjunction with the transmission of L-shaped plate 813 and gear 814, causes the secondary connecting block 815 to move synchronously away from the center of positioning frame 81. Another set of insert blocks 812 is provided on the outer wall of the secondary connecting block 815 near the center of positioning frame 81. This allows the positioning roller 86 to contact the surface of machine body 1 and move to the left end face of the cold-rolled steel plate. At this point, the positioning frame 81 releases its restraints from the pressure plate 6 on both sides. The pressure plate 6 can then continue to move downwards and, in conjunction with the shearing blade 7, perform the shearing operation on the cold-rolled steel plate. Meanwhile, the positioning component 8 remains relatively fixed within the shearing cover 4, working in conjunction with the auxiliary roller 83, support roller 88, and positioning roller 86 to achieve the positioning effect of the cold-rolled steel plate during the shearing process, ensuring the shearing quality of the device.

[0029] In addition, a locking assembly 9 is provided inside the shearing cover 4. The locking assembly 9 includes a transmission rod 91. The end of the transmission rod 91 is hinged to the end of the main connecting block 811. The other end of the transmission rod 91 is hinged to a locking block 92. A round rod 93 is fixedly installed on the inner wall of the positioning frame 81. A straight groove 94 is opened on the inner wall of the transmission rod 91. The round rod 93 is located inside the straight groove 94. A locking groove 95 is opened on the inner wall of the side of the shearing cover 4.

[0030] In this embodiment of the invention, the locking block 92 is slidably mounted on the inner surface of the positioning frame 81, so that the locking block 92 can only move linearly along the inner wall of the positioning frame 81. In addition, the locking block 92 and the locking groove 95 are arranged in the same vertical plane, and several serrated grooves are opened on the bottom inner surface of the locking groove 95, so that the locking block 92 can limit the positioning frame 81 in the vertical direction after being inserted into the locking groove 95, thereby ensuring the positioning effect of the positioning frame 81 in conjunction with the auxiliary roller 83, the positioning roller 86 and the support roller 88 on the cold-rolled steel plate, thereby ensuring the stability and processing accuracy of the cold-rolled steel plate during shearing. Furthermore, the end of the secondary connecting block 815 is provided with another set of locking components 9, so that the main connecting block 811 and the secondary connecting block 815 can simultaneously achieve positioning restriction between the end of the positioning frame 81 and the shearing cover 4, thereby ensuring the positioning stability of the cold-rolled steel plate during processing, and at the same time, it will not affect the disengagement between the positioning frame 81 and the pressure plate 6.

[0031] In this invention, during use, the drive motor 2 is started, cooperating with the rotation of the transmission roller 3 to transport the cold-rolled steel sheet towards the inside of the shearing hood 4. After being transported to a certain position inside the shearing hood 4, the hydraulic cylinder 5 is activated to drive the combination of the pressure plate 6 and the positioning frame 81 downward. At this time, the positioning roller 86 and the auxiliary roller 83 will first contact the surface of the cold-rolled steel sheet, and with the continued downward pressure of the pressure plate 6 and the positioning frame 81, they will cooperate with the hinge plate 85 and the auxiliary plate 82 to swing away from the center of the positioning frame 81. When the bottom surface of the positioning roller 86 moves to the left edge of the cold-rolled steel sheet, with the continued downward pressure of the positioning frame 81, the positioning roller 86 will drive the hinge plate 85 to press down. At this time, the top of the hinge plate 85 will move downward along the inner wall of the guide groove 84 through the guide rod. A certain distance is maintained so that the bottom surface of the positioning roller 86 will eventually adhere to the upper surface of the machine body 1. At this time, the main connecting block 811 will move away from the center of the positioning frame 81 by the pull of the connecting rod 810, thereby causing the insert block 812, which was originally inserted into the slot 816, to be released from the restriction of the slot 816. After the positioning roller 86 contacts the surface of the machine body 1, when it moves to the left end face of the cold-rolled steel plate, the positioning frame 81 releases the restriction between itself and the pressure plate 6 on the left and right sides. At this time, the pressure plate 6 can continue to move down and cooperate with the shearing blade 7 to perform the shearing work on the cold-rolled steel plate. The positioning component 8 remains relatively fixed in the shearing cover 4, and cooperates with the auxiliary roller 83, the support roller 88 and the positioning roller 86 to achieve the positioning effect of the cold-rolled steel plate in the shearing process, ensuring the shearing processing quality of the device.

[0032] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A shearing machine for cold-rolled steel plate production, comprising a machine body (1), wherein a drive motor (2) is fixedly installed on the side wall of the machine body (1), a transmission roller (3) is fixedly connected to the output end of the drive motor (2), a shearing cover (4) is fixedly installed on the upper surface of the machine body (1), a hydraulic cylinder (5) is fixedly installed on the top outer wall of the shearing cover (4), a pressure plate (6) is fixedly connected to the output end of the hydraulic cylinder (5) through the top inner wall of the shearing cover (4), and a shearing blade (7) is fixedly installed on the lower surface of the pressure plate (6), characterized in that: A positioning component (8) is provided on the outer side of the pressure plate (6), and a locking component (9) is provided inside the shear cover (4). The positioning component (8) includes: A positioning frame (81) is slidably mounted on the inner wall of the shear cover (4). An auxiliary plate (82) is hinged to the inner wall of the positioning frame (81). An auxiliary roller (83) is rotatably connected to the bottom end of the auxiliary plate (82). A guide groove (84) is provided on the inner wall of the positioning frame (81). The top end of a hinge plate (85) is movably connected to the inside of the guide groove (84). A positioning roller (86) is rotatably connected to the bottom end of the hinge plate (85). A protruding rib (861) is fixedly installed on the arc-shaped outer wall of the positioning roller (86). A support plate (87) is hinged to the side wall of a hinge plate (85). A support roller (88) is rotatably connected to the bottom end of the support plate (87). A connecting spring (89) is movably connected between the support plate (87) and the side wall of the hinge plate (85). One end of a connecting rod (810) is movably connected to the top end of the hinge plate (85). A main connecting block (811) is hinged to the other end of the connecting rod (810). An insert block (812) is fixedly installed on the outer wall of the main connecting block (811) near the center of the positioning frame (81). One end of an L-shaped plate (813) is fixedly connected to the upper surface of the main connecting block (811). A gear (814) is rotatably installed on the inner wall of the positioning frame (81). A secondary connecting block (815) is slidably installed on the inner wall of the end of the positioning frame (81) away from the main connecting block (811). A slot (816) is provided on the side wall of the pressure plate (6).

2. The shearing machine for cold-rolled steel plate production according to claim 1, characterized in that: The hinge plate (85) is located on the side of the positioning frame (81) away from the auxiliary plate (82), and a guide rod is installed through and fixedly mounted on the top inner wall of the hinge plate (85), and the guide rod is located inside the guide groove (84), which is shaped like a "F".

3. A shearing machine for cold-rolled steel plate production according to claim 2, characterized in that: The hinge plate (85) has a slot at the top center with a width that matches the width of the connecting rod (810), and the guide rod is hinged to the connecting rod (810) through the slot.

4. A shearing machine for cold-rolled steel plate production according to claim 1, characterized in that: The lower surface of the L-shaped plate (813) near the secondary connecting block (815) has teeth that mesh with the gear (814) to achieve transmission, and the upper surface of the secondary connecting block (815) has another set of teeth that mesh with the lower surface of the gear (814) to achieve transmission.

5. A shearing machine for cold-rolled steel plate production according to claim 1, characterized in that: The locking assembly (9) includes a transmission rod (91), the end of which is hinged to the end of the main connecting block (811), and the other end of which is hinged to a locking block (92). A round rod (93) is fixedly installed on the inner wall of the positioning frame (81). A straight groove (94) is opened on the inner wall of the transmission rod (91), and the round rod (93) is located inside the straight groove (94). A locking groove (95) is opened on the inner wall of the side of the shear cover (4).

6. A shearing machine for cold-rolled steel plate production according to claim 5, characterized in that: The locking block (92) and the locking groove (95) are arranged in the same vertical plane, and a number of serrated grooves are provided on the bottom inner surface of the locking groove (95).

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