License plate feeding and discharging device of batch license plate manufacturing machine

Abstract

The license plate feeding and discharging device of the batch license plate manufacturing machine comprises a plate storage frame, a machine frame and a power motor connected to the machine frame, blank plates are placed on the plate storage frame, a first connecting rod is connected to a power shaft of the power motor, a second connecting rod is hinged to the first connecting rod, and the blank plates are placed on the second connecting rod. The second connecting rod is connected with a supporting frame, the supporting frame is connected with a feeding suction cup and a discharging suction cup, the rack is slidably connected with a sliding block in the transverse direction of the rack, the second connecting rod is slidably connected with the sliding block in the height direction of the rack, the feeding suction cup is used for placing a blank plate on a die punching station, and the discharging suction cup is used for placing the blank plate on the die punching station. The discharging suction cup is used for taking down the license plate from the stamping die station. The production efficiency is improved while the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of license plate manufacturing, and particularly to a license plate loading and unloading device for a batch license plate manufacturing machine. Background Technique

[0002] At present, Chinese Patent CN215158945U discloses a license plate manufacturing device. The device mainly consists of a base, a character mold library, a character mold manipulator, a lead screw slide rail, a character mold frame, a feeding mechanism, and a material feeding mechanism. Among them, the character mold frame is provided with a character mold accommodating position and a plate accommodating position for pressing the plate. The feeding mechanism is responsible for feeding the plate into the plate accommodating position of the character mold frame, and the material feeding mechanism is responsible for outputting the pressed plate.

[0003] Specifically, the working process of the feeding mechanism is relatively complex: First, the feeding cylinder drives the feeding lifting plate to descend, so that the suction cup sucks the plate; then, the feeding cylinder drives the feeding lifting plate to rise; next, the feeding motor drives the suction cup moving plate to move horizontally through the feeding lead screw, and moves the plate to the transfer guiding position and releases it. After that, the plate may also need to pass through a conveyor belt and an inclined plate before finally entering the plate accommodating position of the character mold frame.

[0004] It is not difficult to see that in order to complete the vertical and horizontal movement of the plate, the feeding mechanism needs to use both a feeding motor and a feeding cylinder as driving devices. This design not only increases the production cost of the device, but also affects the overall feeding efficiency due to the coordination of multiple moving parts and driving methods, thus reducing the production efficiency of license plates. Content of the Utility Model

[0005] In view of this, the purpose of the utility model is to provide a license plate loading and unloading device for a batch license plate manufacturing machine, achieving the purpose of reducing production costs while improving production efficiency.

[0006] To solve the above technical problems, the technical solution of the utility model is: A license plate loading and unloading device for a batch license plate manufacturing machine, including a plate storage rack, a machine frame, and a power motor connected to the machine frame. Blank plates are placed on the plate storage rack. A first connecting rod is connected to the power shaft of the power motor. A second connecting rod is hinged on the first connecting rod. A support frame is connected to the second connecting rod. A feeding suction cup and a discharging suction cup are connected to the support frame. A slider is slidably connected to the machine frame along its transverse direction. The second connecting rod is slidably connected to the slider along the height direction of the machine frame. The feeding suction cup is used to place the blank plate on the die pressing station, and the discharging suction cup is used to take the license plate off the die pressing station.

[0007] To implement the above technical solution, the power motor drives the first connecting rod on the power shaft to rotate, and the first connecting rod drives the articulated second connecting rod to move. Since the second connecting rod is slidably connected to the slider that slides horizontally along the frame and is slidably connected along the height direction of the frame, the entire linkage mechanism converts the rotational motion of the motor into the compound reciprocating motion of the support frame. During this process, the feeding suction cup on the support frame descends to suck the blank plate on the storage plate rack, and at the same time, the discharging suction cup descends to suck the license plate, then rises and horizontally moves above the punching die station, and descends to place the blank plate in place. At the same time, the license plate rises and horizontally moves to the discharging position. This linkage mechanism driven by a single power source effectively simplifies the drive system, reduces the production cost, and improves the feeding and discharging efficiency due to the coordination and integration of its motion, thereby improving the overall production efficiency of batch license plates.

[0008] As a preferred embodiment of the present invention, the frame is fixedly connected with a first slide rail along its horizontal direction, and the slider is slidably connected to the first slide rail.

[0009] Implementing the above technical solution can ensure that when the support frame performs the compound motion, its horizontal movement trajectory is accurate and stable. The first slide rail provides a clear guidance, restricting the degree of freedom of the slider so that it can only move along the preset horizontal path. This precise guidance mechanism helps to improve the operation accuracy and stability of the entire feeding and discharging device.

[0010] As a preferred embodiment of the present invention, a second slide rail is fixedly connected to the second connecting rod. The second slide rail is arranged along the height direction of the frame, and the second slide rail is slidably connected to the slider.

[0011] Implementing the above technical solution provides high-precision vertical guidance for the support frame, significantly improving the operation accuracy.

[0012] As a preferred embodiment of the present invention, a plurality of first support rods and a plurality of second support rods are connected to the support frame. The plurality of first support rods and the plurality of second support rods are arranged along the length direction of the support frame. The feeding suction cup is connected to the first support rod, and the discharging suction cup is connected to the second support rod.

[0013] Implementing the above technical solution, multiple feeding suction cups work together, which can more evenly disperse the force when sucking and placing the blank plate, ensuring that the blank plate is more stable during the movement and is not easily deformed or dropped; at the same time, multiple discharging suction cups work together, which can more evenly disperse the force when sucking and placing the license plate, ensuring that the license plate is more stable during the movement and is not easily deformed or dropped.

[0014] As a preferred embodiment of the present utility model, the first connecting rod and / or the second connecting rod is a hollow structure, and weight-reducing holes are provided on the first connecting rod and / or the second connecting rod.

[0015] Implementing the above technical solution significantly reduces the self-weight of these moving parts. This lightweight treatment directly reduces the inertial force during movement, enabling the power motor to achieve faster acceleration and deceleration with less energy consumption, significantly improving the overall operating efficiency and speed. In addition, the reduced inertial force also reduces mechanical wear and vibration shock, thereby extending the service life of the equipment and improving the operating stability and reliability.

[0016] As a preferred embodiment of the present utility model, a pushing structure for pushing the blank sheet upward is provided on the sheet storage rack.

[0017] Implementing the above technical solution, when the feeding suction cup needs to suck the blank sheet, the pushing structure on the sheet storage rack will push the uppermost blank sheet upward. This pre-upward pushing operation ensures that the blank sheet can enter the suction range of the feeding suction cup at a more accurate and stable position, thus significantly improving the reliability and success rate of feeding.

[0018] As a preferred embodiment of the present utility model, the pushing structure includes a driving motor, a sliding rod, and a pushing plate. The driving motor is connected to the sheet storage rack, multiple sliding rods are fixed to the sheet storage rack, the sliding rods extend in the direction close to the feeding suction cup, the pushing plate is slidably connected to the sliding rods, the pushing plate supports the blank sheet, a limiting cavity for limiting the blank sheet is formed between the pushing plate and the multiple sliding rods, and the driving motor drives the pushing plate to move along the axial direction of the sliding rod through a connecting mechanism.

[0019] Implementing the above technical solution, the driving motor drives the pushing plate to move along the axial direction of the sliding rod through its connecting mechanism. Since the pushing plate supports the blank sheet and a limiting cavity is formed between the pushing plate and the multiple sliding rods, the blank sheets stacked on the sheet storage rack can be stably limited and supported. When taking materials, the driving motor precisely controls the pushing plate to move upward, so as to smoothly push the uppermost blank sheet to the accurate suction position of the feeding suction cup.

[0020] As a preferred embodiment of the present utility model, the connecting mechanism includes a screw rod, a worm gear, and a worm. The driving shaft of the driving motor is fixedly connected to the worm, the worm gear is rotatably connected to the sheet storage rack, the outer wall of the worm gear meshes with the worm, the screw rod passes through the worm gear and is threadedly connected to the worm gear, the screw rod is fixedly connected to the pushing plate, and the axis of the screw rod is parallel to the axis of the sliding rod.

[0021] To implement the above technical solution, the drive shaft of the drive motor drives the worm to rotate. The worm meshes with the worm wheel rotatably connected to the blank plate storage rack, causing the worm wheel to rotate accordingly. Since the screw passes through the worm wheel and is threadedly connected thereto, and the axis of the screw is parallel to the axis of the slide bar, the rotation of the worm wheel drives the screw to move axially. The screw is fixedly connected to the push plate. Therefore, the axial movement of the screw drives the push plate supporting the blank plate to rise smoothly along the slide bar, precisely pushing the uppermost blank plate to the suction position of the feeding suction cup, achieving high-precision and high-stability control of the movement of the push plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic external structure view of the present utility model;

[0023] Figure 2 is a schematic view showing the position of the blank plate storage rack;

[0024] Figure 3 is a schematic view showing the structure of the support frame;

[0025] Figure 4 is a schematic view showing the position of the power motor;

[0026] Figure 5 is a schematic view showing the structure of the drive motor;

[0027] Figure 6 is a schematic view showing the structure of the worm wheel.

[0028] Reference numerals: 1, blank plate storage rack; 2, frame; 3, blank plate; 4, blank plate pushing structure; 5, drive motor; 6, slide bar; 7, push plate; 8, connecting mechanism; 9, screw; 10, worm wheel; 11, worm; 12, power motor; 13, first connecting rod; 14, second connecting rod; 15, support frame; 16, first support rod; 17, second support rod; 18, feeding suction cup; 19, discharging suction cup; 20, first slide rail; 21, slider; 22, second slide rail; 23, weight reduction hole; 24, limiting rod; 25, drive shaft; 26, bearing. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The following further details the specific embodiments of the present utility model with reference to the accompanying drawings, so that the technical solutions of the present utility model are easier to understand and master.

[0030] A blank plate loading and unloading device for a batch license plate making machine includes a blank plate storage rack 1, a frame 2, and a power motor 12 fixedly connected to the frame 2. Blank plates 3 are placed on the blank plate storage rack 1. The blank plate storage rack 1 is located on one side of the frame 2. A blank plate pushing structure 4 for pushing the blank plates 3 upward is provided on the blank plate storage rack 1. A plurality of blank plates 3 are stacked on the blank plate storage rack 1. The frame 2 is placed horizontally.

[0031] The pushing structure 4 includes a driving motor 5, a sliding rod 6, and a pushing plate 7. The driving motor 5 is connected to the storage plate rack 1. Four sliding rods 6 are fixed to the storage plate rack 1. The sliding rods 6 extend in the direction close to the feeding suction cup 18, that is, the sliding rods 6 are vertically arranged. The pushing plate 7 is horizontally arranged and is slidably connected to the sliding rods 6. The four sliding rods 6 are all close to the edge of the pushing plate 7. The pushing plate 7 supports the blank plate 3. Two limiting rods 24 are fixedly connected to the storage plate rack 1. The axis of the limiting rod 24 is parallel to the axis of the sliding rod 6. The limiting rod 24 is used to abut against the end of the blank plate 3.

[0032] A limiting cavity for limiting the blank plate 3 is formed between the pushing plate 7 and the four sliding rods 6. A plurality of blank plates 3 are stacked on the pushing plate 7, and the side wall of the blank plate 3 is used to abut against the sliding rod 6.

[0033] The driving motor 5 drives the pushing plate 7 to move along the axial direction of the sliding rod 6 through the connecting mechanism 8.

[0034] The connecting mechanism 8 includes a screw rod 9, a worm gear 10, and a worm 11. The driving shaft 25 of the driving motor 5 is fixedly connected to the worm 11 through a coupling. The driving motor 5 is a servo motor. The worm gear 10 is rotatably connected to the storage plate rack 1 through a bearing 26. The axis of the worm gear 10 is vertically arranged, and the worm 11 is horizontally arranged. The outer wall of the worm gear 10 is meshed with the worm 11. The screw rod 9 passes through the worm gear 10 and is threadedly connected to the worm gear 10, that is, the screw rod 9 is vertically arranged. The upper end of the screw rod 9 is fixedly connected to the lower surface of the pushing plate 7. The axis of the screw rod 9 is parallel to the axis of the sliding rod 6.

[0035] When the driving motor 5 is started, the driving shaft 25 rotates, and the worm 11 rotates synchronously with the driving shaft 25. The worm 11 drives the worm gear 10 to rotate. When the worm gear 10 rotates, through the conduction of the thread, the screw rod 9 moves along its own axial direction, so that the pushing plate 7 can move up and down along the sliding rod 6. The blank plate 3 located on the pushing plate 7 can move up and down with the pushing plate 7.

[0036] The power motor 12 is a servo motor and is horizontally arranged. A first connecting rod 13 is fixedly connected to the power shaft of the power motor 12. One end of the first connecting rod 13 far from the power shaft is hinged with a second connecting rod 14. The second connecting rod 14 is vertically arranged, that is, the length direction of the second connecting rod 14 is parallel to the height direction of the frame 2.

[0037] A support frame 15 is fixedly connected to the second connecting rod 14. Two first support rods 16 and two second support rods 17 are fixedly connected to the support frame 15. The two first support rods 16 and the two second support rods 17 are arranged along the length direction of the support frame 15. The first support rod 16 and the second support rod 17 are both horizontally placed. Two feeding suction cups 18 are fixedly connected to each first support rod 16, and two discharging suction cups 19 are fixedly connected to each second support rod 17.

[0038] A first slide rail 20 is fixedly connected to the frame 2 along its transverse direction, and a slider 21 is slidably connected to the first slide rail 20. The first slide rail 20 is horizontally arranged. A second slide rail 22 is fixedly connected to the second connecting rod 14, and the length direction of the second slide rail 22 is parallel to the length direction of the second connecting rod 14. The second slide rail 22 is slidably connected to the side of the slider 21 facing away from the first slide rail 20.

[0039] Both the first connecting rod 13 and the second connecting rod 14 are hollow structures, and weight-reducing holes 23 are provided on both the first connecting rod 13 and the second connecting rod 14.

[0040] The using process of the present utility model is as follows: Multiple blank plates 3 are horizontally stacked on the pushing plate 7 on the storage rack 1. The sliding rod 6 and the pushing plate 7 form a limiting cavity, and the side wall of the blank plate 3 contacts the sliding rod 6, thereby realizing the precise positioning and alignment of the plates. Initially, the pushing plate 7 is in a lower position, supporting the whole stack of blank plates 3.

[0041] In order to send out the blank plates 3 one by one, the driving motor 5 installed on the storage rack 1 is started. The driving shaft 25 of the driving motor 5 is fixedly connected to the worm 11 through a coupling and starts to rotate. The worm 11 is horizontally arranged and meshes with the worm wheel 10 which is vertically arranged and rotatably connected to the storage rack 1. As the worm 11 drives the worm wheel 10 to rotate, the screw rod 9 passing through the worm wheel 10 and threadedly connected thereto will move upward along its own axis. Since the upper end of the screw rod 9 is fixedly connected to the lower surface of the pushing plate 7, the upward movement of the screw rod 9 directly drives the pushing plate 7 to move vertically upward along the sliding rod 6. The blank plates 3 stacked on the pushing plate 7 also rise as a whole. Until the topmost blank plate 3 is accurately sent to the height where the feeding suction cup 18 can grasp it. The driving motor 5, as a servo motor, can ensure the precise positioning of the pushing plate 7, thereby realizing the accurate and controlled feeding of the blank plates 3.

[0042] Once the blank plate 3 is in place, the power motor 12 is driven to take over the subsequent operations:

[0043] The power motor 12 installed on the frame 2 and horizontally arranged is started. The power shaft of the power motor 12 is fixedly connected to the first connecting rod 13. The first connecting rod 13 is a hollow structure and is provided with a weight-reducing hole 23. One end of the first connecting rod 13 away from the power shaft is hinged to the second connecting rod 14. The second connecting rod 14 is vertically arranged, and its length direction is parallel to the height direction of the frame 2. It is also a hollow structure and is provided with a weight-reducing hole 23.

[0044] A first slide rail 20 is fixedly connected to the machine frame 2. A slider 21 is slidably connected to the first slide rail 20, and the first slide rail 20 is horizontally arranged. A second slide rail 22 is fixedly connected to the second connecting rod 14. The length direction of the second slide rail 22 is parallel to the length direction of the second connecting rod 14. The second slide rail 22 is slidably connected to the side of the slider 21 facing away from the first slide rail 20. This double-slide rail system enables the second connecting rod 14 and the support frame 15 to perform complex combined movements.

[0045] Two feeding suction cups 18 are fixedly connected to each first support rod 16. When the power motor 12 operates, the power shaft rotates in the reverse direction. Through the articulated and sliding connections of the first connecting rod 13 and the second connecting rod 14, the feeding suction cups 18 are precisely moved above the topmost blank plate 3 and made to contact the upper surface of the blank plate 3. The feeding suction cups 18 then start adsorption to firmly grasp the blank plate 3.

[0046] After sucking the blank plate 3, the power shaft rotates in the forward direction to move the second connecting rod 14 and the feeding suction cups 18 together to the die-casting station. The blank plate 3 is released here for subsequent processing.

[0047] After the blank plate 3 is stamped into a license plate, the power rotates in the reverse direction again to move the discharging suction cup 19 above the license plate. The discharging suction cup 19 starts adsorption to grasp the finished license plate. At the same time, the feeding suction cups 18 adsorb another blank plate 3.

[0048] Finally, the power shaft rotates in the forward direction to move the second connecting rod 14 and the discharging suction cup 19 to the designated discharging area, where the finished license plate is released. And at the same time, the blank plate 3 adsorbed by the feeding suction cups 18 is placed at the die-casting station to complete the entire loading and unloading cycle.

[0049] Of course, the above are only typical examples of the present utility model. In addition, the present utility model can also have many other specific implementation manners. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present utility model.

Claims

1. A license plate loading and unloading device for a batch license plate making machine, comprising a storage rack (1), a machine frame (2), and a power motor (12) connected to the machine frame (2). Blank plates (3) are placed on the storage rack (1), and it is characterized in that: A first connecting rod (13) is connected to the power shaft of the power motor (12). A second connecting rod (14) is hinged to the first connecting rod (13). A support frame (15) is connected to the second connecting rod (14). A feeding suction cup (18) and a discharging suction cup (19) are connected to the support frame (15). A slider (21) is slidably connected to the machine frame (2) along its transverse direction. The second connecting rod (14) is slidably connected to the slider (21) along the height direction of the machine frame (2). The feeding suction cup (18) is used to place the blank plate (3) on the die-casting station, and the discharging suction cup (19) is used to remove the license plate from the die-casting station.

2. The license plate loading and unloading device of a batch license plate making machine according to claim 1, characterized in that: A first slide rail (20) is fixedly connected to the machine frame (2) along its transverse direction. The slider (21) is slidably connected to the first slide rail (20).

3. The license plate loading and unloading device of a batch license plate making machine according to claim 1 or 2, characterized in that: A second slide rail (22) is fixedly connected to the second connecting rod (14). The second slide rail (22) is arranged along the height direction of the machine frame (2). The second slide rail (22) is slidably connected to the slider (21).

4. The license plate loading and unloading device of a batch license plate making machine according to claim 1, characterized in that: A plurality of first support rods (16) and a plurality of second support rods (17) are connected to the support frame (15). The plurality of first support rods (16) and the plurality of second support rods (17) are arranged along the length direction of the support frame (15). The feeding suction cup (18) is connected to the first support rod (16), and the discharging suction cup (19) is connected to the second support rod (17).

5. The license plate loading and unloading device of a batch license plate making machine according to claim 1, characterized in that: The first connecting rod (13) and / or the second connecting rod (14) is a hollow structure, and a weight-reducing hole (23) is formed in the first connecting rod (13) and / or the second connecting rod (14).

6. The license plate loading and unloading device of a batch license plate making machine according to claim 1, characterized in that: A pushing structure (4) for pushing the blank plate (3) upward is arranged on the plate storage rack (1).

7. The license plate loading and unloading device of a batch license plate making machine according to claim 6, characterized in that: The pushing structure (4) includes a driving motor (5), a sliding rod (6), and a pushing plate (7). The driving motor (5) is connected to the plate storage rack (1). A plurality of sliding rods (6) are fixed to the plate storage rack (1). The sliding rods (6) extend in the direction close to the feeding suction cup (18). The pushing plate (7) is slidably connected to the sliding rods (6). The pushing plate (7) supports the blank plate (3). A limiting cavity for limiting the blank plate (3) is formed between the pushing plate (7) and the plurality of sliding rods (6). The driving motor (5) drives the pushing plate (7) to move axially along the sliding rod (6) through a connecting mechanism (8).

8. The license plate loading and unloading device of a batch license plate making machine according to claim 7, characterized in that: The connecting mechanism (8) includes a screw rod (9), a worm gear (10), and a worm (11). The driving shaft (25) of the driving motor (5) is fixedly connected to the worm (11). The worm gear (10) is rotatably connected to the plate storage rack (1). The outer wall of the worm gear (10) is engaged with the worm (11). The screw rod (9) passes through the worm gear (10) and is threadedly connected to the worm gear (10). The screw rod (9) is fixedly connected to the pushing plate (7). The axis of the screw rod (9) is parallel to the axis of the sliding rod (6).

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