U-shaped die for uncoiling and blanking

Abstract

The U-shaped die for uncoiling and blanking comprises a working table, supporting legs are symmetrically installed at the bottom of the working table, a fixing frame is fixedly installed at the top of the working table, a hydraulic cylinder is fixedly installed at the top of the fixing frame, and the movable end of the hydraulic cylinder penetrates through the fixing frame and is fixedly provided with a movable plate. A U-shaped upper mold is fixedly installed at the bottom of the movable plate, a U-shaped lower mold is fixedly installed in the center of the top of the workbench, two sets of positioning blocks are symmetrically installed on the two sides of the movable plate, guide rods are slidably connected to the interiors of the two sets of positioning blocks, and the two sets of guide rods are fixedly connected with the fixing frame and the workbench correspondingly. The U-shaped upper die can be subjected to air blowing heat dissipation in the continuous punch forming process of a workpiece, heat on the U-shaped upper die can be assisted to be taken away, and the situation that the service life is affected due to the fact that the temperature of the U-shaped upper die is too high in the continuous working process is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to die technical field, concretely is a kind of U-shaped die for uncoiling blanking. BACKGROUND

[0002] Uncoiling blanking line is a kind of plate processing equipment suitable for the uncoiling, cleaning and oiling, leveling, blanking and stacking of surface covering piece coil in automobile, steel plate distribution and other industries, which has been widely used in automobile manufacturing plants in developed countries.

[0003] The patent discloses a kind of uncoiling blanking automatic line double discharge mould, two limit grooves are arranged in the inside of the machine case, first process good uncoiling blanking and pour mould groove inside, when left side mould is pressed into shape, mechanical arm moves to the upper part of right side mould groove, telescopic rod is down telescopic movement, telescopic rod drives pressure block to move downward, pressure block drives upper mould to move downward, upper mould is pressed on the lower mould of right side, upper mould and lower mould will material be pressed and punched in mould groove, right side special-shaped block is pressed in connecting hole, special-shaped block is just attached to the inside of connecting hole, to prevent material from leaking out from connecting hole, special-shaped block is pressed on connecting hole and moves downward, connecting hole moves downward and pressurizes U-shaped groove bottom, the tension spring in U-shaped groove is deformed, U-shaped groove moves left in tension spring by U-shaped tube principle, U-shaped groove extrudes from left side upper port, U-shaped groove drives left side connecting hole to move upward, left side connecting hole drives left side special-shaped block to eject upward, left side special-shaped block ejects forming mould in mould groove, to play the role of automatic ejection mould, but the patent still has the following problems in actual use process:

[0004] By being pressed when workpiece, special-shaped block is just attached to the inside of connecting hole, forming mould in mould groove is ejected after workpiece pressing is finished, to play the role of automatic ejection mould, but in actual use, in the process of material pressing, it is realized by the pressing of upper mould, upper mould is continuously rubbed with workpiece in the process of pressing, upper mould will generate certain heat in continuous working process, if heat generated by upper mould continuous work is not removed in time, it will affect the wear resistance and structural strength of upper mould, in turn, the service life of upper mould will be reduced.

[0005] A kind of U-shaped die for uncoiling blanking is presented, to solve the problems presented in the above. UTILITY MODEL CONTENTS

[0006] The utility model discloses a purpose lies in providing a kind of U-shaped mould for uncoiling blanking, to solve the problem of the above background technology, when being stamped to workpiece currently, irregular block just fits in the inside of connecting hole, forming mould in mould groove is ejected after workpiece stamping ends, it plays the role of automatic ejection mould, but in actual use, it is realized by the stamping of upper mould in the stamping process of material, upper mould is continuously rubbed with workpiece in stamping process, upper mould will generate certain heat in continuous working process, if heat generated by continuous work of upper mould is not removed in time, the wear resistance and structural strength of upper mould will be affected, and then the service life of upper mould will be reduced.

[0007] To realize the above-mentioned purpose, the utility model provides the following technical scheme: a kind of U-shaped mould for uncoiling blanking, including workbench;

[0008] The bottom of the workbench is symmetrically provided with supporting legs, and the top of the workbench is fixedly provided with a fixed frame, and the top of the fixed frame is fixedly provided with a hydraulic cylinder, and the movable end of the hydraulic cylinder penetrates through the fixed frame and is fixedly provided with a movable plate;

[0009] Further comprising:

[0010] The bottom of the movable plate is fixedly provided with a U-shaped upper die, and the top center of the workbench is fixedly provided with a U-shaped lower die, and two groups of positioning blocks are symmetrically provided on the two sides of the movable plate, and the inside of the two groups of positioning blocks is slidably connected with guide rods, and the two groups of guide rods are fixedly connected with the fixed frame and the workbench, and the top and bottom of the movable plate are symmetrically provided with heat dissipation assemblies;

[0011] The heat dissipation assembly comprises a cylinder symmetrically installed on the top of the movable plate, and the inside of the cylinder is slidably connected with a movable rod, and one end of the movable rod is fixedly provided with a piston, and the piston is slidably connected with the cylinder.

[0012] The outside of the movable rod is provided with a telescopic spring, one end of the telescopic spring is fixedly connected with the cylinder, and the other end of the telescopic spring is fixedly provided with a mounting block, and the mounting block is fixedly connected with the movable rod.

[0013] Preferably, a through hole is formed through one side of the top of the cylinder, and an air inlet pipe is connected through the lower side of the other side of the cylinder, and an air outlet pipe is connected through the lower side of the other side of the cylinder, and one-way valves are arranged in the inside of the air inlet pipe and the air outlet pipe.

[0014] Preferably, the gas outlet pipe is connected with a connecting hose at one end away from the cylinder, two groups of mounting racks are symmetrically mounted on the bottom of the movable plate, and the inner part of each of the two mounting racks on each side is slidably connected with a movable pipe, the end of the connecting hose away from the gas outlet pipe is connected with the movable pipe, and a plurality of air injection pipes are connected with the two movable pipes on the side close to each other.

[0015] Preferably, the outer part of the movable pipe is sleeved with a reset spring on one side of one of the two mounting racks, one end of the reset spring is fixedly connected with the mounting rack, the other end of the reset spring is fixedly connected with a moving plate, and the moving plate is fixedly connected with the movable pipe.

[0016] Preferably, the top of the movable plate is provided with a sliding groove on one side of each of the two cylinders, and the moving plate is slidably connected with the sliding groove.

[0017] Preferably, the top of the movable plate is provided with a sliding groove on one side of each of the two cylinders, and the moving plate is slidably connected with the sliding groove.

[0018] Preferably, one side of each of the two fixed seats is provided with an inclined slope.

[0019] Compared with the prior art, the beneficial effects of the U-shaped die for uncoiling and blanking are as follows: the heat dissipation assembly is symmetrically arranged on the top and bottom of the movable plate, so that the U-shaped upper die can be blown and cooled during continuous stamping and forming of the workpiece, the heat on the U-shaped upper die can be removed, and the service life of the U-shaped upper die is not affected by high temperature during continuous work.

[0020] 1. The top and bottom of the movable plate are symmetrically provided with heat dissipation assemblies, during the stamping process of the workpiece, the workpiece is placed in the U-shaped lower die, the movable plate is driven to move down by the hydraulic cylinder, the U-shaped upper die is used for stamping the workpiece, then the movable plate can be lifted by the hydraulic cylinder, the workpiece can be taken down, then the movable plate can be continuously moved up by the hydraulic cylinder, the mounting block is attached to the fixed frame, then the movable rod is pushed in the cylinder by the continuous upward movement of the movable plate, and the extension spring can be compressed, at this time, the one-way valve in the air inlet pipe is closed, the one-way valve in the air outlet pipe is opened, the movement of the piston can push the air in the cylinder into the air outlet pipe, the air can enter the movable pipe through the air outlet pipe and the connecting hose, the air can be sprayed through the air jet pipe, the inner diameter of the air jet pipe is small, and the Bernoulli effect makes the sprayed air flow have a certain flow rate, the heat on the U-shaped upper die can be quickly taken away by the sprayed air flow, then the movable rod is reset under the action of the extension spring after the movable plate moves down, the piston moves down, at this time, the one-way valve in the air inlet pipe is opened, the one-way valve in the air outlet pipe is closed, the external air can be sucked into the cylinder, and the heat dissipation assembly can be used for blowing and cooling the U-shaped upper die during the continuous stamping process of the workpiece, so that the heat on the U-shaped upper die can be taken away, and the service life of the U-shaped upper die is not affected by the high temperature during continuous work;

[0021] 2. When the U-shaped upper die is blown and cooled, the movable plate moves up to drive the roller to abut against the fixed seat, then the roller rotates on the slope of the fixed seat as the movable plate continues to move up, so that the moving plate can be pushed to move, the movable pipe is driven by the moving plate to slide on the mounting frame and stretch the reset spring, so that the movable pipe moves, the blowing range of the air jet pipe is expanded after the movable pipe moves, so that the cooling range is expanded, the cooling effect of the U-shaped upper die is improved, and the practicability is improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a front structure schematic view of the utility model;

[0023] Figure 2 It is a heat dissipation assembly three-dimensional structure schematic view of the utility model;

[0024] Figure 3 It is another view of the heat dissipation assembly three-dimensional structure schematic view of the utility model;

[0025] Figure 4 It is a cylinder three-dimensional cross-sectional structure schematic view of the utility model;

[0026] Figure 5 It is a heat dissipation assembly three-dimensional structure schematic view of the utility model; Figure 1 It is a heat dissipation assembly three-dimensional structure schematic view of the utility model;

[0027] As shown in the figure: 1, workbench; 101, support leg; 102, fixed frame; 103, hydraulic cylinder; 104, movable plate; 105, positioning block; 106, guide rod; 107, U-shaped upper mold; 108, U-shaped lower mold; 2, heat dissipation assembly; 201, cylinder; 202, movable rod; 203, extension spring; 204, mounting block; 205, piston; 206, through hole; 207, air inlet pipe; 208, air outlet pipe; 209, connecting hose; 210, mounting frame; 211, movable pipe; 212, air jet pipe; 213, return spring; 214, moving plate; 215, sliding groove; 216, connecting frame; 217, roller; 218, fixed seat. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0029] Please refer to Figures 1-5The utility model provides technical scheme: a kind of U-shaped die for uncoiling blanking, including workbench 1, the bottom of workbench 1 is symmetrically equipped with support leg 101, and the top of workbench 1 is fixedly installed with fixed frame 102, and the top of fixed frame 102 is fixedly installed with hydraulic cylinder 103, and the movable end of hydraulic cylinder 103 passes through fixed frame 102 and is fixedly installed with movable plate 104, further including: the bottom of movable plate 104 is fixedly installed with U-shaped upper die 107, and the top center of workbench 1 is fixedly installed with U-shaped lower die 108, and the both sides of movable plate 104 are symmetrically installed with two groups of positioning blocks 105, and the inside of two groups of positioning blocks 105 is slidably connected with guide rod 106, and two groups of guide rod 106 are fixedly connected with fixed frame 102 and workbench 1 respectively, and the top and bottom of movable plate 104 are symmetrically provided with heat dissipation assembly 2, wherein, heat dissipation assembly 2 includes that symmetrically installed in the top of movable plate 104 cylinder 201, and the inside upper portion of cylinder 201 is slidably connected with movable rod 202, and one end of movable rod 202 is fixedly installed with piston 205, and piston 205 is slidably connected with cylinder 201, wherein, the outside upper portion of movable rod 202 is sleeved with telescopic spring 203, and one end of telescopic spring 203 is fixedly connected with cylinder 201, and the other end of telescopic spring 203 is fixedly installed with mounting block 204, and mounting block 204 is fixedly connected with movable rod 202, by heat dissipation assembly 2, in continuous stamping forming process to workpiece, U-shaped upper die 107 can be blown and cooled, heat on U-shaped upper die 107 can be removed, to avoid that U-shaped upper die 107 temperature is too high in continuous working process and affects service life.

[0030] The top side of the barrel 201 is provided with a through hole 206, and the lower side of one side of the barrel 201 is provided with an air inlet pipe 207, and the lower side of the other side of the barrel 201 is provided with an air outlet pipe 208, and the interiors of the air inlet pipe 207 and the air outlet pipe 208 are provided with one-way valves, so that the air in the barrel 201 can be pushed into the movable pipe 211 during the downward movement of the piston 205, the end of the air outlet pipe 208 away from the barrel 201 is connected with a connecting hose 209, the bottom of the movable plate 104 is symmetrically provided with two groups of mounting frames 210, the interiors of the two mounting frames 210 on each side are slidably connected with movable pipes 211, the end of the connecting hose 209 away from the air outlet pipe 208 is connected with the movable pipe 211, and the sides of the two movable pipes 211 close to each other are provided with a plurality of air injection pipes 212, which can cool the U-shaped upper die 107, the exterior of the movable pipe 211 is provided with a reset spring 213 on one side of the mounting frame 210, one end of the reset spring 213 is fixedly connected with the mounting frame 210, and the other end of the reset spring 213 is fixedly connected with a moving plate 214, and the moving plate 214 is fixedly connected with the movable pipe 211, so that the movable pipe 211 can be automatically reset after moving, the top of the movable plate 104 is provided with a sliding groove 215 on one side of the two barrels 201, and the moving plate 214 is slidably connected with the sliding groove 215, the movement of the moving plate 214 is limited, the top of the two moving plates 214 is fixedly provided with a connecting frame 216, the inner side of the connecting frame 216 is rotatably connected with a roller 217, and the inner side of the fixed frame 102 is fixedly provided with a fixed seat 218 above the two rollers 217, so that the movable plate 104 can drive the roller 217 to move upward, and the side of the two fixed seats 218 is provided with an inclined slope, so that the moving plate 214 can move upward during the upward movement.

[0031] Working principle: before using the U-shaped die for uncoiling and blanking, the overall situation of the device needs to be checked to determine whether it can work normally, according to Figure 1 - Figure 5As shown, the heat dissipation assembly 2 is symmetrically arranged at the top and bottom of the movable plate 104, during the stamping process of the workpiece, the workpiece is placed in the U-shaped lower die 108, the movable plate 104 is driven to move down by the hydraulic cylinder 103, so that the U-shaped upper die 107 stamps and forms the workpiece, then the movable plate 104 can be lifted by the hydraulic cylinder 103, the workpiece can be taken down, then the movable plate 104 can continue to move up by the hydraulic cylinder 103, so that the mounting block 204 is attached to the fixed frame 102, then the movable plate 104 continues to move up to drive the movable rod 202 to slide in the cylinder 201, and the extension spring 203 can be compressed, at this time the one-way valve in the air inlet pipe 207 is closed, the one-way valve in the air outlet pipe 208 is opened, so that the piston 205 moves to top the air in the cylinder 201 into the air outlet pipe 208, so that the air can enter the movable pipe 211 through the air outlet pipe 208 and the connecting hose 209, the air can be sprayed through the air jet pipe 212, the inner diameter of the air jet pipe 212 is small, and the Bernoulli principle makes the sprayed air flow have a certain flow rate, the sprayed air flow can quickly take away the heat on the U-shaped upper die 107, then the movable plate 104 moves down and the movable rod 202 resets under the action of the extension spring 203, so that the piston 205 moves down, at this time the one-way valve in the air inlet pipe 207 is opened, the one-way valve in the air outlet pipe 208 is closed, the external air can be sucked into the cylinder 201, through the heat dissipation assembly 2, during the continuous stamping and forming process of the workpiece, the U-shaped upper die 107 can be blown and cooled, which can assist in taking away the heat on the U-shaped upper die 107, so as to avoid that the temperature of the U-shaped upper die 107 is too high during continuous work to affect the service life;

[0032] When the U-shaped upper die 107 is blown and cooled, the movable plate 104 moves up so that the roller 217 can abut against the fixed seat 218, then as the movable plate 104 continues to move up, the roller 217 rotates on the slope of the fixed seat 218, so that the moving plate 214 can be pushed to move, the moving plate 214 drives the movable pipe 211 to slide on the mounting bracket 210 and stretch the reset spring 213, so that the movable pipe 211 moves, after the movable pipe 211 moves, the blowing range of the air jet pipe 212 can be expanded, so that the cooling range can be expanded, the cooling effect of the U-shaped upper die 107 is improved, and the practicability is improved.

[0033] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A U-shaped die for uncoiling and blanking, comprising a workbench (1); The bottom of the workbench (1) is symmetrically provided with supporting legs (101), and the top of the workbench (1) is fixedly provided with a fixed frame (102), and the top of the fixed frame (102) is fixedly provided with a hydraulic cylinder (103), and the movable end of the hydraulic cylinder (103) penetrates through the fixed frame (102) and is fixedly provided with a movable plate (104); characterized in that Further comprising: The bottom of the movable plate (104) is fixedly provided with a U-shaped upper die (107), the top center of the workbench (1) is fixedly provided with a U-shaped lower die (108), and the two sides of the movable plate (104) are symmetrically provided with two groups of positioning blocks (105), and the interiors of the two groups of positioning blocks (105) are slidably connected with guide rods (106), and the two groups of guide rods (106) are fixedly connected with the fixed frame (102) and the workbench (1) respectively, and the top and the bottom of the movable plate (104) are symmetrically provided with heat dissipation assemblies (2); The heat dissipation assembly (2) comprises a cylinder (201) symmetrically provided on the top of the movable plate (104), the interior upper portion of the cylinder (201) is slidably connected with a movable rod (202), one end of the movable rod (202) is fixedly provided with a piston (205), and the piston (205) is slidably connected with the cylinder (201); The outer upper portion of the movable rod (202) is sleeved with a telescopic spring (203), one end of the telescopic spring (203) is fixedly connected with the cylinder (201), the other end of the telescopic spring (203) is fixedly provided with a mounting block (204), and the mounting block (204) is fixedly connected with the movable rod (202).

2. The U-die for uncoiling and blanking according to claim 1, characterized in that: The top side of the cylinder (201) is provided with a through hole (206), the lower side of one side of the cylinder (201) is penetratively connected with an air inlet pipe (207), the lower side of the other side of the cylinder (201) is penetratively connected with an air outlet pipe (208), and the interiors of the air inlet pipe (207) and the air outlet pipe (208) are provided with one-way valves.

3. The U-die for uncoiling and blanking according to claim 2, characterized in that: The end of the air outlet pipe (208) away from the cylinder (201) is penetratively connected with a connecting hose (209), the bottom of the movable plate (104) is symmetrically provided with two groups of mounting frames (210), the interiors of the two mounting frames (210) on each side are slidably connected with movable pipes (211), the end of the connecting hose (209) away from the air outlet pipe (208) is penetratively connected with the movable pipes (211), and the sides of the two movable pipes (211) close to each other are penetratively connected with a plurality of air injection pipes (212).

4. The U-die for uncoiling and blanking according to claim 3, characterized in that: The outer side of the movable pipe (211) is sleeved with a reset spring (213) on one side of one side mounting frame (210), one end of the reset spring (213) is fixedly connected with the one side mounting frame (210), the other end of the reset spring (213) is fixedly provided with a moving plate (214), and the moving plate (214) is fixedly connected with the movable pipe (211).

5. The U-die for uncoiling and blanking according to claim 4, characterized in that: The top of the movable plate (104) is provided with a sliding groove (215) on one side of each of the two barrels (201), and the movable plate (214) is slidably connected with the sliding groove (215).

6. The U-die for uncoiling and blanking according to claim 5, characterized in that: The top of each of the two movable plates (214) is fixedly provided with a connecting frame (216), the inner side of the connecting frame (216) is rotatably connected with a roller (217), and the inner side of the fixed frame (102) is fixedly provided with a fixed seat (218) above each of the two rollers (217).

7. The U-die for uncoiling and blanking according to claim 6, characterized in that: One side of each of the two fixed seats (218) is provided with an inclined slope.

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