License plate stamping device

Abstract

The utility model relates to the technical field of license plate manufacturing, in particular to a license plate stamping device. Comprising a workbench, a character die unit is arranged on the upper surface of the workbench, a support and a supporting column are fixed to the upper end of the workbench, the character die unit is located between the supporting column and the support, and a picking assembly is arranged between the supporting column and the support and can sequentially pick up character dies corresponding to license plate information; a driving assembly is arranged on the portion, below the stamping assembly, of the workbench and connected with a die box. According to the device, character dies corresponding to license plate information can be sequentially and automatically picked up, the character dies are sequentially placed in the die box, the driving assembly can drive the die box and the character dies in the die box to stably move to the position below the stamping assembly, and the qualified rate can be increased after license plate blanks are stamped. Meanwhile, the accuracy and efficiency of license plate manufacturing can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of license plate production, in particular to a license plate punching device. Background Art

[0002] With the increasing number of small electric vehicles, the demand for license plates is also increasing. Each small electric vehicle needs to have a license plate number, and existing electric tricycles and electric two-wheelers also need to be hung for taking photos. Vehicle license plates are usually made of aluminum alloy sheets, and the characters on the license plates are displayed as pressed convex. Since the characters on each license plate are different, the current production situation relies on manual arrangement of the character molds according to the given numbers. Each time the license plate is pressed, it is necessary to select different concave and convex molds to form a concave and convex mold, and place the license plate whiteboard in the concave and convex mold. Manual operation is inconvenient, inefficient, and costly. In addition, when stamping letters and semi-finished products, manual stamping is often dangerous and will bring great physical burden to the operator.

[0003] The patent document with application number CN202320900436.0 and titled "A Motor Vehicle License Plate Stamping Equipment" discloses a device capable of automatically making license plates. When in use, first start the motor to start the threaded rod, and under the support of the guide rod, drive the movement of the slider, and the movement of the slider can move the electric push rod. When it moves to the required letter unit mold, the electric push rod drives the movement of the fixing device, and then drives the movement of the suction cup, so that the suction cup absorbs the required letters and numbers. After the required letters and numbers are absorbed by the suction cup, the threaded rod drives the slider to continue moving. When the slider contacts the second support plate, the electric push rod moves downward, and the absorbed letters and numbers are placed in the mold box in order. This device solves the problem of inconvenient manual operation of manually arranging the mold according to the given number, improves production efficiency, and reduces costs. By starting the first conveyor belt, the mold box is driven to move, and the mold box is moved into the groove. By starting the second conveyor belt, the license plate is conveyed to the upper surface of the mold box in the groove. By starting the electric hydraulic cylinder, the piston rod can start to move downward. The movement of the piston rod can drive the movement of the pressing block, and then the pressing block punches the semi-finished license plate and the character mold. This device solves the dangers of manual punching and reduces the physical burden of workers. When the punching is completed, the push plate is driven to move by starting the telescopic rod, and then the push plate pushes the mold box and the license plate to the first conveyor belt. The mold box and the license plate are transported by reversing the first conveyor belt, and the mold box returns to the origin through the baffle. The character mold is sent back to the character mold unit by suction through the suction cup, which saves labor and improves efficiency. However, when the device uses the first conveyor belt and the second conveyor belt to transport the mold box and the license plate respectively, the mold box and the license plate cannot be effectively stabilized during the process of transporting the mold box and the license plate, and the mold box and the license plate cannot effectively enter the groove and align, and the qualified rate of the license plate is low. At the same time, after the license plate is stamped, the push plate is driven to move horizontally by the telescopic rod to push the mold box and the license plate to the first conveyor belt. The first conveyor belt and the mold box are prone to jamming, resulting in unstable operation. Utility Model Content

[0004] The utility model provides a license plate punching device to improve the qualification rate of license plate manufacturing.

[0005] The technical solution provided by the utility model is:

[0006] A license plate stamping device comprises a workbench, wherein a character mold unit is arranged on the upper surface of the workbench, a bracket and a support column are fixed to the upper end of the workbench, the character mold unit is located between the support column and the bracket, a picking assembly is arranged between the support column and the bracket, and the picking assembly can sequentially pick up the character molds corresponding to the license plate information, a stamping assembly is arranged on the bracket, a driving assembly is arranged on the workbench below the stamping assembly, and the driving assembly is connected to the mold box; the driving assembly comprises a second screw rod rotatably connected to the bracket, the second screw rod is vertically arranged, a second motor is fixed on the bracket, an output shaft of the second motor is fixedly connected to the second screw, a rotating shaft is concentrically fixed to the lower end of the second screw, and the rotating shaft A gear is concentrically fixed on the upper part, the gear meshes with the rack, the rack is slidably set at the upper end of the workbench, a connecting rod is fixed at one end of the rack, the connecting rod passes through the mold box, the connecting rod is slidably connected to the mold box, a baffle is fixed at one end of the connecting rod outside the mold box, the baffle is connected to the mold box by a spring, a positioning plate is fixed on the workbench on one side of the driving component, the picking component picks up the character mold corresponding to the license plate information into the mold box in turn, the driving component drives the mold box and the character mold therein to move until they are in contact with the positioning plate and are located below the stamping component, after the license plate blank is placed above the character mold in the mold box, the stamping component is used to stamp the license plate blank to form the required license plate.

[0007] Specifically, there are two support columns, and the picking assembly includes a first screw rotatably connected between the bracket and one of the support columns, a first motor is fixed on the support column rotatably connected to the first screw, and the output shaft of the first motor is fixedly connected to the first screw, and the other support column is fixedly connected to the bracket through a guide rod, the guide rod is parallel to the first screw, the sliding rod is slidably connected to the guide rod, the sliding rod is threadedly connected to the first screw, and a plurality of electric push rods are evenly fixed on the lower end of the sliding rod along its length direction, and an electric-driven suction cup is fixed on the lower end of the electric push rod, and the character mold unit has a rectangular array of multiple character molds, and each column of character molds has an electric-driven suction cup above the top, and the arrangement sequence of each column of character molds is the same, and the character mold is a convex mold with a punch facing upward.

[0008] Specifically, the first motor and the second motor are both servo motors, and the electric push rod, the first motor, the second motor, the controller and the computer are electrically connected. The control structure diagram is as follows: Figure 6 shown.

[0009] Specifically, there are two second screws, and the two second screws are symmetrically arranged front and back.

[0010] Specifically, the stamping assembly includes a slide plate, which is threadedly connected to the two second screw rods, a pressing plate is fixed at the lower end of the slide plate, and a rubber pad is fixed at the lower end of the pressing plate.

[0011] Specifically, the axial direction of the first screw is parallel to the length direction of the workbench.

[0012] Specifically, the electric-driven suction cup is an electromagnetic suction cup, and the electric-driven suction cup is electrically connected to the controller.

[0013] Specifically, the length direction of the sliding rod is perpendicular to the length direction of the workbench.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model can automatically pick up the character molds corresponding to the license plate information in sequence, and place the character molds in the mold box in sequence. The driving component can drive the mold box and the character molds therein to move stably to the bottom of the stamping component. After the license plate blank is stamped, the qualified rate can be improved. At the same time, the accuracy and efficiency of license plate production can be improved.

[0016] 2. The character mold of the utility model is a convex mold with the punch facing upwards, and the convex mold with the punch facing upwards cooperates with the rubber pad to press the license plate blank, without using a groove mold. Compared with the traditional license plate production process, the selection and sorting process of the groove mold is omitted, thereby improving the production efficiency of the license plate.

[0017] 3. After the driving component drives the mold box and the character mold inside it to contact the positioning plate, as the rack continues to move, the spring can squeeze the mold box. Under the action of the spring on the mold box, the stability of the mold box and the character mold inside it can be improved during the process of the pressure plate squeezing the license plate blank, which can ensure the pass rate of the license plate after production. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the license plate punching device described in the utility model.

[0019] Figure 2 It is a schematic diagram of the cooperation between the mold box and the rack described in the utility model.

[0020] Figure 3 It is a schematic diagram of the cooperation between the connecting rod and the mold box described in the utility model.

[0021] Figure 4 It is a schematic diagram of the stamping assembly described in the utility model.

[0022] Figure 5 It is a schematic diagram of the cooperation between the electric push rod and the electric drive suction cup described in the utility model.

[0023] Figure 6 This is a schematic diagram of the control structure described in the utility model.

[0024] The names of the parts in the attached drawings are:

[0025] 1. Workbench; 2. Support column; 3. Bracket; 4. First motor; 5. First screw; 6. Guide rod; 7. Sliding rod; 8. Electric push rod; 9. Electric drive suction cup; 10. Character mold unit; 11. Second motor; 12. Second screw; 13. Rotating shaft; 14. Gear; 15. Rack; 16. Mold box; 17. Connecting rod; 18. Spring; 19. Positioning plate; 20. Slide plate; 21. Pressing plate. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0027] Example 1: Reference Figure 1-Figure 5 As shown, a license plate stamping device includes a workbench 1, a character mold unit 10 is arranged on the upper surface of the workbench 1, a bracket 3 and a support column 2 are fixed to the upper end of the workbench 1, and the character mold unit 10 is located between the support column 2 and the bracket 3. There are two support columns 2, and the two support columns 2 are symmetrically arranged front and back.

[0028] The character mold unit 10 has a plurality of rectangular arrays of character molds, and each column of character molds has the same arrangement sequence. The character molds are convex molds with the punch facing upward.

[0029] A picking component is provided between the support column 2 and the bracket 3, and the picking component can sequentially pick up the character molds corresponding to the license plate information.

[0030] The pick-up assembly includes a first screw rod 5 rotatably connected between the bracket 3 and one of the support columns 2, a first motor 4 is fixed on the support column 2 rotatably connected to the first screw rod 5, and an output shaft of the first motor 4 is fixedly connected to the first screw rod 5. The axial direction of the first screw rod 5 is parallel to the length direction of the workbench 1.

[0031] Another support column 2 is fixedly connected to the bracket 3 via a guide rod 6 , and the guide rod 6 is parallel to the first screw rod 5 .

[0032] The slide bar 7 is slidably connected to the guide bar 6. The length direction of the slide bar 7 is perpendicular to the length direction of the workbench 1. The slide bar 7 is threadedly connected to the first screw 5. A plurality of electric push rods 8 are evenly fixed to the lower end of the slide bar 7 along its length direction, and an electric drive suction cup 9 is fixed to the lower end of the electric push rod 8. The electric drive suction cup 9 is electrically connected to the controller. There is an electric drive suction cup 9 above each column of character molds.

[0033] A stamping assembly is arranged on the bracket 3. The stamping assembly comprises a slide plate 20, which is threadedly connected to the two second screw rods 12, a pressing plate 21 is fixed to the lower end of the slide plate 20, and a rubber pad is fixed to the lower end of the pressing plate 21.

[0034] A driving assembly is arranged on the workbench 1 below the punching assembly, and the driving assembly is connected to a mold box 16 .

[0035] The driving assembly includes a second screw rod 12 rotatably connected to the bracket 3, the second screw rod 12 is vertically arranged, the number of the second screw rod 12 is two, and the two second screw rods 12 are symmetrically arranged front and back. A second motor 11 is fixed to the bracket 3, the output shaft of the second motor 11 is fixedly connected to the second screw rod 12, a rotating shaft 13 is coaxially fixed to the lower end of the second screw rod 12, a gear 14 is coaxially fixed to the rotating shaft 13, the gear 14 is meshed with a rack 15, the rack 15 is slidably arranged on the upper end of the workbench 1, a connecting rod 17 is fixed to one end of the rack 15, the connecting rod 17 passes through the mold box 16, the connecting rod 17 is slidably connected to the mold box 16, a baffle is fixed to one end of the connecting rod 17 outside the mold box 16, and the baffle is connected to the mold box 16 through a spring 18, and a positioning plate 19 is fixed to the workbench 1 on one side of the driving assembly.

[0036] The picking component picks up the character molds corresponding to the license plate information into the mold box 16 in turn, and the driving component drives the mold box 16 and the character molds therein to move until they are in contact with the positioning plate 19 and are located below the stamping component. After the license plate blank is placed above the character mold in the mold box 16, the stamping component is used to stamp the license plate blank to form the required license plate.

[0037] The first motor 4 and the second motor 11 are both servo motors. The electric push rod 8, the first motor 4, the second motor 11, the controller and the computer are electrically connected. The control structure diagram is shown in FIG. Figure 6 shown.

[0038] When making a license plate, the license plate characters are input into a computer. The computer can convert the characters on the license plate into pulse signals with a certain frequency and pulse width in sequence through a built-in program, and the computer inputs the pulse signals into a controller in sequence.

[0039] Reference Figure 5As shown, when the controller receives the first pulse signal sent by the computer, the controller starts the first motor 4, so that the first motor 4 drives the first screw 5 to rotate the set number of circles, thereby causing the first electric push rod 8 from left to right to move to the top of a character mold below it. At this time, the character mold below the first electric push rod 8 from left to right corresponds to the first character from left to right of the license plate. Then the controller starts the electric push rod 8, and the electric push rod 8 drives the electric drive sucker 9 downward. After the electric drive sucker 9 contacts the character mold below it, the controller starts the electric drive sucker 9. After a character mold corresponding to the electric drive sucker 9 is adsorbed, the controller causes the electric push rod 8 to drive the electric drive sucker 9 and the adsorbed character mold upward. Then the controller controls the first motor 4 to drive the first screw 5 to rotate, so that the character mold adsorbed by the electric drive sucker 9 moves to the top of the mold box 16. Then the controller causes the electric push rod 8 to drive the electric drive sucker 9 and the adsorbed character mold downward to the mold box 16. After the character mold is lowered into the mold box 16, the controller sequentially restores the electric push rod 8 and the first motor 4. The character molds corresponding to the license plate characters are placed in the mold box 16 in sequence through the first motor 4 , the first screw 5 , the plurality of electric push rods 8 and the plurality of electric drive suction cups 9 .

[0040] After the character molds corresponding to the license plate characters are placed in the mold box 16 in sequence, the license plate blank is placed above the multiple character molds in the mold box 16. Then the controller starts the second motor 11, and the second motor 11 drives the second screw 12 to rotate. During the rotation of the second screw 12, the slide plate 20 drives the pressing plate 21 and the rubber pad downward. At the same time, the gear 14 drives the rack 15, the mold box 16, the character molds in the mold box 16, the connecting rod 17, the spring 18 and the baffle to move toward the positioning plate 19.

[0041] When the mold box 16 contacts the positioning plate 19, the mold box 16 is located below the pressure plate 21 and remains stationary. At this time, the gear 14 continues to rotate, the rack 15, the connecting rod 17 and the baffle continue to move toward the positioning plate 19, the spring 18 is compressed, and the pressure plate 21 and the rubber pad enter the mold box 16 to squeeze the license plate blank. When the pressure plate 21 squeezes the license plate blank through the rubber pad, the deformation degree of the rubber pad part corresponding to the punch of the character mold is greater than that of other parts of the rubber pad. Therefore, character information corresponding to the license plate characters will be formed on the license plate blank.

[0042] After the license plate blank is pressed, a finished license plate is formed, and then the second motor 11 is restored. When the mold box 16 is restored, the finished license plate is taken out. Then the controller places the character mold in the mold box 16 at the initial position in sequence through the cooperation of the first motor 4, the first screw 5, the multiple electric push rods 8 and the multiple electric drive suckers 9.

[0043] The device can automatically pick up the character molds corresponding to the license plate information in sequence, and place the character molds in the mold box 16 in sequence. The driving component can drive the mold box 16 and the character molds therein to move stably to the bottom of the stamping component. After the license plate blank is stamped, the qualified rate can be improved. At the same time, the accuracy and efficiency of license plate production can be improved.

[0044] The character mold is a convex mold with the punch facing upwards. The convex mold with the punch facing upwards cooperates with the rubber pad to press the license plate blank, without the need for a groove mold. Compared with the traditional license plate production process, the selection and sorting of the groove mold is omitted, thereby improving the production efficiency of the license plate.

[0045] After the driving component drives the mold box 16 and the character mold therein to contact the positioning plate 19, as the rack 15 continues to move, the spring 18 can squeeze the mold box 16. Under the action of the spring 18 squeezing the mold box 16, the stability of the mold box 16 and the character mold therein can be improved during the process of the pressing plate 21 squeezing the license plate blank, thereby ensuring the pass rate of the license plate after production.

[0046] Embodiment 2: Based on Embodiment 1, refer to Figure 1-Figure 5 As shown, the electric drive sucker 9 is an electromagnetic sucker. Since the punch of the character mold faces upward, the contact surface between the character mold and the electric drive sucker 9 is uneven. In this embodiment, the electromagnetic sucker is used to effectively absorb the character mold.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A license plate punching device, comprising a workbench (1), wherein a character mold unit (10) is arranged on the upper surface of the workbench (1), It is characterized in that A support (3) and a support column (2) are fixed at the upper end of the workbench (1); a character mold unit (10) is located between the support column (2) and the support (3); a pickup assembly is arranged between the support column (2) and the support (3); the pickup assembly can sequentially pick up character molds corresponding to the license plate information; a stamping assembly is arranged on the support (3); a driving assembly is arranged on the workbench (1) below the stamping assembly; the driving assembly is connected to a mold box (16); the driving assembly comprises a second screw rod (12) rotatably connected to the support (3); the second screw rod (12) is arranged vertically; a second motor (11) is fixed on the support (3); an output shaft of the second motor (11) is fixedly connected to the second screw rod (12); a rotating shaft (13) is coaxially fixed to the lower end of the second screw rod (12); a gear (14) is coaxially fixed to the rotating shaft (13); the gear (14) and the gear (16) are connected to each other. The rack (15) is meshed with the rack (15), and the rack (15) is slidably arranged on the upper end of the workbench (1), a connecting rod (17) is fixed to one end of the rack (15), the connecting rod (17) penetrates the mold box (16), and the connecting rod (17) is slidably connected to the mold box (16), a baffle is fixed to one end of the connecting rod (17) outside the mold box (16), and the baffle is connected to the mold box (16) through a spring (18), a positioning plate (19) is fixed on the workbench (1) on one side of the driving component, and the picking component sequentially picks up the character mold corresponding to the license plate information into the mold box (16), and the driving component drives the mold box (16) and the character mold therein to move until they are in contact with the positioning plate (19) and are located below the stamping component, and after the license plate blank is placed above the character mold in the mold box (16), the stamping component is used to stamp the license plate blank to form the required license plate.

2. A license plate punching device according to claim 1, It is characterized in that The number of the support columns (2) is two, and the pickup assembly comprises a first screw rod (5) rotatably connected between the bracket (3) and one of the support columns (2); a first motor (4) is fixed on the support column (2) rotatably connected to the first screw rod (5); an output shaft of the first motor (4) is fixedly connected to the first screw rod (5); the other support column (2) is fixedly connected to the bracket (3) via a guide rod (6); the guide rod (6) is parallel to the first screw rod (5); a slide rod (7) is slidably connected to the guide rod (6); the slide rod (7) is threadedly connected to the first screw rod (5); a plurality of electric push rods (8) are evenly fixed at the lower end of the slide rod (7) along its length direction; an electric drive suction cup (9) is fixed at the lower end of the electric push rod (8); a plurality of character molds of the character mold unit (10) are rectangular arrays, each column of character molds has an electric drive suction cup (9) above it, and each column of character molds has the same arrangement sequence, and the character mold is a convex mold with a punch facing upward.

3. A license plate punching device according to claim 2, It is characterized in that The first motor (4) and the second motor (11) are both servo motors, and the electric push rod (8), the first motor (4), the second motor (11), a controller and a computer are electrically connected.

4. A license plate punching device according to claim 1, It is characterized in that The number of the second screw rods (12) is two, and the two second screw rods (12) are symmetrically arranged front to back.

5. A license plate punching device according to claim 4, It is characterized in that The punching assembly comprises a slide plate (20), the slide plate (20) is threadedly connected to the two second screw rods (12), a pressing plate (21) is fixed at the lower end of the slide plate (20), and a rubber pad is fixed at the lower end of the pressing plate (21).

6. A license plate punching device according to claim 2, It is characterized in that The axial direction of the first screw (5) is parallel to the length direction of the workbench (1).

7. A license plate punching device according to claim 2, It is characterized in that The electric drive sucker (9) is an electromagnetic sucker, and the electric drive sucker (9) is electrically connected to the controller.

8. A license plate punching device according to claim 2, It is characterized in that The length direction of the sliding rod (7) is perpendicular to the length direction of the workbench (1).

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