Steel belt progressive device for key production

Abstract

The utility model discloses a steel belt progressive device for key production, which comprises a base, a top cover and a motor, a single-group air cylinder and a double-group air cylinder are fixed on the top cover, a single-group movable block and a double-group movable block are placed on the base, a middle pressing roller is connected onto the double-group movable block, the motor is fixed on one side of the base, and a motor wheel disc is fixed at the output end of the motor. The motor wheel disc is sleeved with a transmission belt, upper end pressing rollers are rotationally connected to the single-set movable blocks, located on the left side and the right side, of the base, lower end pressing rollers are connected to the positions, located below the upper end pressing rollers, of the left side and the right side of the base, and gears are fixed to the right side ends of the upper end pressing rollers and the lower end pressing rollers. Chain wheels are further fixed to the left side ends of the pressing rollers at the lower ends of the front and back positions of the base, the chain wheels on the two sides are connected with chains in an engaged mode, pressing roller wheel discs are further fixed in the base, and the other end of the transmission belt sleeves the pressing roller wheel discs. The device has the characteristics of simple structure, small occupied space and more convenience and quickness in adjustment.

Description

Technical Field

[0001] The utility model relates to the technical field of key production equipment, in particular to a steel belt advancing device for key production. Background Art

[0002] Ordinary padlocks need to be configured with corresponding keys to open them. During the production process of the key, the initial steel strip is punched by a punching machine to form a key blank, and then the key blank is processed to make the key. The existing key blank has used a continuous punching machine in the production, that is, it can be continuously punched without human operation on the side. The raw material of the die is a roll of steel strip. The steel strip has an arc and needs to be straightened before punching. Therefore, a progressive device is installed at one end of the steel strip so that the steel strip can be fed in step by step and straightened according to the specified distance. The existing steel strip progressive device The device includes a steel belt rack and a motor wheel between the steel belt rack and the punch press. The steel belt is wound and placed on the steel belt rack. The motor wheel drives the upper and lower wheels by the motor. The steel belt passes through the upper and lower sets of wheels and is progressively advanced and straightened, and finally enters the punch press station for punching. However, this structure requires a relatively large space, at least two to three meters, and when replacing the steel belt, the left and right movable blocks are threadedly connected to the rotating screw, and the rotating screw is threadedly connected to the top cover. When adjusting, the rotating screw is manually rotated to allow the movable block to move up and down on the base, which is time-consuming and laborious, and the adjustment is very inconvenient. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a steel belt advancing device for key production, which has a simple structure, small occupied space and is more convenient and quick to adjust.

[0004] In order to solve the above problems, the utility model adopts the following technical solutions:

[0005] A steel belt advancing device for key production comprises a base, a top cover and a motor, wherein single-group cylinders are fixed on the four corners of the top cover, and a double-group cylinder is fixed between the front and rear single-group cylinders, single-group movable blocks and double-group movable blocks are movably placed on the left and right sides of the base, the telescopic end of the single-group cylinder is fixed on the single-group movable block, the telescopic end of the double-group cylinder is fixed on the double-group movable block, and the double-group movable block is rotatably connected with an intermediate clamping roller, the motor is fixed on one side of the base, and a motor wheel is fixed on its output end, a transmission belt is sleeved on the outer side of the motor wheel, and the motor wheel is fixed on the outer side of the motor wheel. The base is rotatably connected to the upper clamping roller on the single group of movable blocks located on the left and right sides, and the base is rotatably connected to the lower clamping roller on the left and right sides and below the upper clamping roller. Gears are fixed to the right ends of the upper clamping roller and the lower clamping roller, and are connected up and down through the gears. A sprocket is also fixed to the left end of the lower clamping roller located at the front and back positions of the base, and chains are engaged with the sprockets on both sides. A clamping roller disc is also fixed to the lower clamping roller located at the front end position in the base and its leftmost end, and the other end of the transmission belt is sleeved on the clamping roller disc.

[0006] A further technical solution is that more than two double-group cylinders are fixed between the front and rear single-group cylinders on the top cover. The middle double-group movable block is larger in size and requires cylinders with greater power and number to drive the double-group movable block to move up and down in the base.

[0007] A further technical solution is that a cross bar is fixed on the base and outside the upper end clamping roller, and long slots are distributed on the cross bar. A limiting component is relatively fixed on the cross bar to limit the left and right position of the steel belt.

[0008] A further technical solution is that the limit assembly includes a limit screw and a limit roller, the limit screw passes through the long slot on the cross bar, a roller bearing is fixed to the bottom end of the limit screw, the limit roller is fixed on the roller bearing, and a locking nut is threadedly connected to the limit screw, so that the steel belt is in a rolling connection with the limit roller during the conveying process, thereby reducing friction.

[0009] A further technical solution is that the locking nut is threadedly connected to the limit screw and is located between the cross bar and the limit roller. The rotating locking nut can cooperate with the limit screw so that the limit screw can be relatively fixed on the cross bar. By loosening the locking nut, the limit screw can be moved left and right at the long groove of the cross bar to adjust the distance, which is suitable for limiting steel belts of different widths.

[0010] A further technical solution is that a metal block is welded to the bottom end of the middle side of the crossbar, the bottom end surface of the metal block is a smooth surface, and the bottom end surface of the metal block is in contact with the steel belt.

[0011] A further technical solution is that a guide roller is fixed at the outer end of the base and below the cross bar, which cooperates with the metal block to limit the upper and lower positions of the steel belt, so that the steel belt can enter between the upper and lower clamping rollers more smoothly.

[0012] A further technical solution is that the single-group movable block, the double-group movable block and the left and right sides of the base are fixed with connecting bearings, and the left and right ends of the upper clamping roller, the middle clamping roller and the lower clamping roller are built in the connecting bearings, so that the upper clamping roller, the middle clamping roller and the lower clamping roller can rotate in the base, and the connecting bearings can be ordinary bearings or needle bearings.

[0013] The beneficial effects of the utility model are as follows: the utility model is a steel strip advancing device for key production, which compresses the steel strip and then slowly transmits it through the cooperation of the upper pressing roller, the lower pressing roller and the middle pressing roller, and flattens the steel strip during the transmission process. The entire transmission and flattening process is carried out inside the base, which effectively reduces the occupied space; at the same time, the single-group movable blocks and the double-group movable blocks on both sides of the base are driven by the single-group cylinder and the double-group cylinder on the top cover, and there is no need for manual adjustment and lifting, with a high degree of automation, reduced labor intensity, and convenient and fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 This is a structural schematic diagram of a steel belt advancing device for key production according to the utility model;

[0016] Figure 2 It is a schematic diagram of the upper pressing roller and the lower pressing roller pressing the steel strip in a steel strip advancing device for key production according to the utility model;

[0017] Figure 3 It is a schematic diagram of an upper pressing roller and a lower pressing roller in a steel belt advancing device for key production of the utility model, which are connected by gear meshing;

[0018] Figure 4 It is a schematic diagram of the linkage of the motor wheel disc and the pressing roller wheel disc through the transmission belt in a steel belt advancing device for key production of the utility model;

[0019] Figure 5 It is a schematic diagram of a limit roller rotatably connected to a limit screw in a steel belt advancing device for key production according to the utility model.

[0020] Figure 1-5 Middle: 1-top cover, 2-single group cylinder, 3-double group cylinder, 4-base, 5-motor, 6-single group movable block, 7-double group movable block, 8-motor wheel, 9-transmission belt, 10-pressure roller wheel, 11-upper end pressure roller, 12-gear, 13-middle pressure roller, 14-lower end pressure roller, 15-sprocket, 16-chain, 17-cross bar, 18-limit roller, 19-steel belt, 20-guide roller, 21-metal block, 22-long notch, 23-limit screw, 24-connecting bearing, 25-locking nut, 26-roller bearing. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0022] See also Figures 1 to 5 As shown, a steel belt advancing device for key production includes a base 4, a top cover 1 and a motor 5. Single-group cylinders 2 are fixed on the four corners of the top cover 1, and a double-group cylinder 3 is fixed between the front and rear single-group cylinders 2. Single-group movable blocks 6 and double-group movable blocks 7 are movably placed on the left and right sides of the base 4. The telescopic end of the single-group cylinder 2 is fixed on the single-group movable block 6, and the telescopic end of the double-group cylinder 3 is fixed on the double-group movable block 7. The double-group movable block 7 is rotatably connected with an intermediate clamping roll 13. The motor 5 is fixed on one side of the base 4, and a motor wheel 8 is fixed on its output end. A transmission belt 9 is sleeved on the outer side of the motor wheel 8. The base 4 is located on the left. The single group of movable blocks 6 on the right side is rotatably connected with an upper clamping roll 11, and the left and right sides of the base 4 and the position below the upper clamping roll 11 are rotatably connected with a lower clamping roll 14. Gears 12 are fixed to the right ends of the upper clamping roll 11 and the lower clamping roll 14, and are engaged with each other up and down through the gear 12. A sprocket 15 is also fixed to the left end of the lower clamping roll 14 located at the front and rear positions of the base 4, and chains 16 are engaged with the sprockets 15 on both sides. A clamping roll wheel disc 10 is also fixed to the lower clamping roll 14 located at the front end position in the base 4 and its leftmost end, and the other end of the transmission belt 9 is sleeved on the clamping roll wheel disc 10.

[0023] There are more than two double-group cylinders 3 fixed between the front and rear single-group cylinders 2 on the top cover 1. The middle double-group movable block 7 is larger in size, and requires a larger power and number of cylinders to drive the double-group movable block 7 to move up and down in the base 4. A crossbar 17 is fixed on the base 4 and located outside the upper end clamping roller 11. Long strip notches 22 are distributed on the crossbar 17. A limiting assembly is relatively fixed on the crossbar 17 to limit the left and right positions of the steel belt 19. The limiting assembly includes a limiting screw 23 and a limiting roller 18. The limiting screw 23 passes through the long strip notches 22 on the crossbar 17. A roller bearing 26 is fixed at the bottom of the limiting screw 23. The limiting roller 18 is fixed on the roller bearing 26. A locking nut 25 is threadedly connected to the limiting screw 23, so that the steel belt 19 is in rolling connection with the limiting roller 18 during the conveying process to reduce friction. The locking nut 25 is threadedly connected to the limit screw 23 and is located between the cross bar 17 and the limit roller 18. The rotating locking nut 25 can cooperate with the limit screw 23, so that the limit screw 23 can be relatively fixed on the cross bar 17. Loosening the locking nut 25, the limit screw 23 can be moved left and right at the long slot 22 of the cross bar 17 to adjust the distance, which is suitable for the use of different width steel strips 19. A metal block 21 is also welded on the bottom end of the middle side of the cross bar 17. The bottom end surface of the metal block 21 is a smooth surface, and the bottom end surface of the metal block 21 contacts the steel strip 19. A guide roller 20 is also fixed on the outer end of the base 4 and located below the cross bar 17. It cooperates with the metal block 21 to limit the upper and lower positions of the steel strip 19, so that the steel strip 19 can enter between the upper clamping roller 11 and the lower clamping roller 14 more smoothly. The single-group movable block 6, the double-group movable block 7 and the left and right sides of the base 4 are fixed with connecting bearings 24. The upper clamping roller 11, the middle clamping roller 13 and the lower clamping roller 14 are built into the connecting bearings 24 on both sides, so that the upper clamping roller 11, the middle clamping roller 13 and the lower clamping roller 14 can rotate in the base 4. The connecting bearings 24 can be ordinary bearings or needle bearings.

[0024] In this embodiment, the top cover 1 is as shown in FIG. Figure 1 As shown, four single-group cylinders 2 are fixed and are respectively located at the four corners of the top cover 1. A double-group cylinder 3 is also fixed between the single-group cylinders 2 in the front and rear directions. The double-group cylinder 3 consists of two high-power cylinders, and the output ends of the single-group cylinder 2 and the double-group cylinder 3 penetrate the top cover 1 and are connected with the single-group movable block 6 and the double-group movable block 7. The single-group cylinder 2 and the double-group cylinder 3 can drive the single-group movable block 6 and the double-group movable block 7 to move up and down on the left and right sides of the base 4. The steel belt 19 to be stamped enters the base 4 from between the metal block 21 and the guide roller 20, and the limit rollers 18 on the left and right sides limit the left and right position movement of the steel belt 19. When the steel belt 19 enters the base 4, as shown in FIG. Figure 3 and Figure 4As shown, the motor 5 is started to drive the motor wheel 8 to rotate, and the motor wheel 8 rotates to drive the pressing roller wheel 10 to rotate through the transmission belt 9. The pressing roller wheel 10 is fixed at the outermost position on the left side of the front lower end pressing roller 14, and the connecting bearing 24 is connected to the lower end pressing roller 14 between the pressing roller wheel 10 and the sprocket 15. After the pressing roller wheel 10 drives the lower end pressing roller 14 to rotate, the gear 12 on the right side of the lower end pressing roller 14 and the upper end pressing roller 1 1 is engaged, driving the upper pressing roller 11 at the upper end to rotate. At the same time, the lower pressing roller 14 drives the chain 16 sleeved on the sprocket 15 through the sprocket 15 connected on the left side, so that the lower pressing roller 14 at the other end rotates. After the lower pressing roller 14 at the other end rotates, it drives the upper pressing roller 11 at the upper end to rotate through the gear 12 at the right end. In this way, after the motor 5 is started, it can drive the steel belt 19 to move slowly from one side to the other side.

[0025] When the steel strips 19 in the base 4 are all stamped, they need to be replaced. Figure 2 As shown, the single-group cylinder 2 and the double-group cylinder 3 are started to drive the single-group movable block 6 and the double-group movable block 7 to move upward at the side end of the base 4, so that the steel belt 19 can be fed into the base 4 and located between the upper clamping roller 11 and the lower clamping roller 14 and between the upper and lower middle clamping rollers 13. Finally, the single-group cylinder 2 and the double-group cylinder 3 are restarted to drive the single-group movable block 6 and the double-group movable block 7 to move downward at the side end of the base 4, so that the upper clamping roller 11 and the middle clamping roller 13 at the front and rear ends move downward and clamp the steel belt 19. In this way, the motor 5 is started to drive the steel belt 19 to be pressed again and delivered to the punching station.

[0026] The above embodiment is only an example of the present invention and is not intended to limit the implementation and scope of rights of the present invention. Any technical solution that is identical or equivalent to the content described in the claims of the present invention should be included in the protection scope of the present invention.

Claims

1. A steel belt feeding device for key production, comprising a base, a top cover and a motor, characterized in that: A single-group cylinder is fixed on the four corners of the top cover, and a double-group cylinder is fixed between the front and rear single-group cylinders. Single-group movable blocks and double-group movable blocks are movably placed on the left and right sides of the base. The telescopic end of the single-group cylinder is fixed on the single-group movable block, and the telescopic end of the double-group cylinder is fixed on the double-group movable block. The double-group movable block is rotatably connected with a middle clamping roller. The motor is fixed on one side of the base, and a motor wheel is fixed on its output end. A transmission belt is sleeved on the outer side of the motor wheel. The single-group movable blocks on the left and right sides of the base The movable block is rotatably connected with an upper clamping roller, and the left and right sides of the base and the position below the upper clamping roller are rotatably connected with a lower clamping roller, gears are fixed to the upper and lower right ends of the clamping roller and are connected by upper and lower meshing of the gears, a sprocket is also fixed to the left end of the lower clamping roller located at the front and rear positions of the base, and chains are meshed and connected to the sprockets on both sides, a clamping roller disc is also fixed to the lower clamping roller located at the front end position in the base and its leftmost end, and the other end of the transmission belt is sleeved on the clamping roller disc.

2. A steel strip feeding device for key production according to claim 1, characterized in that: More than two double-group cylinders are fixed between the front and rear single-group cylinders on the top cover.

3. The steel strip feeding device for key production according to claim 1, characterized in that: A cross bar is fixed on the base and outside the upper end pressing roller, and long slots are distributed on the cross bar. A limiting component is relatively fixed on the cross bar.

4. A steel strip feeding device for key production according to claim 3, characterized in that: The limiting assembly includes a limiting screw and a limiting roller. The limiting screw passes through the long slot on the cross bar. A roller bearing is fixed to the bottom end of the limiting screw. The limiting roller is fixed on the roller bearing. A locking nut is threadedly connected to the limiting screw.

5. The steel strip feeding device for key production according to claim 4, characterized in that: The locking nut is threadedly connected to the limiting screw and is located between the cross bar and the limiting roller.

6. The steel strip feeding device for key production according to claim 3, characterized in that: A metal block is welded on the bottom end of the middle side of the crossbar. The bottom end surface of the metal block is a smooth surface, and the bottom end surface of the metal block is in contact with the steel belt.

7. The steel strip feeding device for key production according to claim 1, characterized in that: A guide roller is fixed at the outer end of the base and below the cross bar.

8. The steel strip feeding device for key production according to claim 1, characterized in that: The single-group movable block, the double-group movable block and the left and right sides of the base are all fixed with connecting bearings, and the left and right sides of the upper end pressing roller, the middle pressing roller and the lower end pressing roller are built in the connecting bearings.

Images