Cutting device for surplus part of semi-finished license plate

By using a combination of a raised platform and a force-bearing frame in the license plate excess part cutting device, combined with the flexible buffering of buffer springs and dampers, the problem of warping and inability to cut the excess part of the license plate is solved, achieving efficient and stable cutting results.

CN224101612UActive Publication Date: 2026-04-10SICHUAN TONGAN IND
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN TONGAN IND
Filing Date
2026-02-28
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

Existing semi-finished license plate excess part cutting devices are prone to warping and deformation of the excess part of the license plate during cutting, making it impossible for the cutter to cut completely, resulting in incomplete cuts. Furthermore, the clamping force can easily cause warping and denting of the thin aluminum alloy substrate, reducing the finished product qualification rate.

Method used

The system employs a raised platform and insert rods to precisely position the license plate body, with the force frame pressing down on excess parts around the circumference. Combined with a frame-type cutting blade and guide components, it ensures cutting stability and accurate positioning. Buffer springs and dampers are used to buffer the cutting force and avoid damage from hard contact.

Benefits of technology

It achieves precise cutting of excess parts of license plates, improves the finished product qualification rate, avoids deformation of the base material, ensures no residue or surface damage at the cut, and ensures accurate positioning without cutting deviation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of license plate cutting, in particular to a semi-finished license plate surplus part cutting device which comprises a working platform, stand columns are symmetrically installed at the top end of the working platform, a carrying platform is installed at the top ends of the two stand columns, and a hydraulic cylinder is installed at the top end of the carrying platform. A force bearing plate is fixedly connected to the driving end of the hydraulic cylinder, a frame-shaped cutting knife is installed at the bottom end of the force bearing plate, sliding rods are slidably connected to the inner walls of the four corners of the force bearing plate, pressing frames are installed at the bottom ends of the multiple sliding rods, and the sliding rods are sleeved with telescopic springs; according to the semi-finished license plate excess part cutting device, the frame-shaped cutting knife can stably and thoroughly cut off excess parts, a final notch is free of residual connection, stable auxiliary pressure is provided, surface damage caused by hard contact is avoided, the qualified rate of finished products is remarkably improved, it is guaranteed that the stress plate, the pressing frame and the frame-shaped cutting knife move along the vertical track all the time, and the cutting efficiency is improved. And the cutting deviation is avoided.
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Description

TECHNICAL FIELD

[0001] The utility model relates to license plate cutting technical field especially relates to a semi -finished product license plate redundant part cutting device. BACKGROUND

[0002] Semi -finished product license plate is the process product of making metal base material, signing production sequence identification but not stamping motor vehicle registration number, and the redundant part appears because of the plate cutting reserved processing allowance, stamping positioning demand etc. when producing, these redundant parts will affect the standard size specification of license plate, also will interfere with the subsequent registration number stamping, license plate installation and the accurate identification of license plate identification system, therefore need to cut the redundant part according to the national standard, let license plate meet the size requirement of unification, guarantee the smooth progress of making, using and identification.

[0003] At present, when most semi -finished product license plate redundant part cutting devices cut, the redundant part of license plate is in a suspended state, the excess material is easy to warp when the cutter contacts, which leads to the cutter cannot completely cut off the plate, and the cutting edge cannot be cut, and the working platform is a whole plane structure, the license plate body and the edge redundant part are attached on the platform, the pressing force and cutting impact force during cutting will directly act on the license plate base material area, and when pressing, the plate is pressed as a whole, the pressing force covers the license plate body and the redundant part, in order to prevent the displacement of the excess material, the pressing force needs to be increased, which is easy to cause the warping and depression of the aluminum alloy thin base material, and the deformed material cannot be corrected, which greatly reduces the qualified rate of finished products.

[0004] Therefore, it is necessary to provide a new semi -finished product license plate redundant part cutting device to solve the above technical problems. UTILITY MODEL CONTENTS

[0005] To solve the above technical problems, the utility model provides a semi -finished product license plate redundant part cutting device.

[0006] The semi -finished product license plate redundant part cutting device provided by the utility model includes: a working platform, the top of the working platform is symmetrically provided with a stand, the top of the two stands is provided with a loading platform, the top of the loading platform is provided with a hydraulic cylinder, the driving end of the hydraulic cylinder is fixedly connected with a stress plate, the bottom of the stress plate is provided with a frame type cutting knife, the inner wall of the four corners of the stress plate is slidably connected with a sliding rod, the bottom of the plurality of sliding rods is provided with a pressing frame, the outer part of the sliding rod is provided with a telescopic spring, the top of the working platform is symmetrically provided with a guide assembly, the top shaft center of the working platform is provided with a groove, the inner wall center of the groove is provided with a convex loading platform, the top of the convex loading platform is provided with a plurality of inserting rods, the outer part of the plurality of inserting rods is inserted with a license plate, the inner wall of the groove is symmetrically provided with a damper, the output end of the two dampers is provided with a stress frame, the bottom of the stress frame is provided with a fixing rod at the four corners, the inner wall of the bottom of the working platform is provided with a plurality of accommodating cavities, and the inner part of the accommodating cavity is provided with an elastic component.

[0007] Preferably, the guide assembly comprises guide rods, the bottom ends of the two guide rods are fixedly connected with the top ends of the working platform at the center of the stand, the outer part of the guide rod is slidably connected with guide block one, and the outer part of the guide rod is slidably connected with guide block two below guide block one.

[0008] Preferably, the elastic force assembly comprises a limiting disc, the outer part of the limiting disc is slidably connected with the inner wall of the accommodating chamber, and the inner part of the accommodating chamber is provided with a buffer spring.

[0009] Preferably, the top end of the sliding rod is provided with a baffle disc, the bottom end of the baffle disc is in contact with the top end of the stress plate in the initial state, and the two ends of the telescopic spring are fixedly connected with the stress plate and the side close to the pressing frame.

[0010] Preferably, the bottom end of the license plate is in contact with the top end of the convex loading platform, and the outer part of the stress frame is slidably connected with the inner wall of the groove.

[0011] Preferably, the bottom end of the pressing frame is in contact with the top end of the excess part of the license plate, the bottom end of the excess part of the license plate is in contact with the top end of the stress frame, and the frame-shaped cutting knife is in contact with the top end of the stress frame after cutting the license plate.

[0012] Preferably, the top end of the guide rod is fixedly connected with the bottom end of the loading platform, the side close to the two guide block ones is fixedly connected with the outer part of the stress plate, the side close to the two guide block twos is fixedly connected with the outer part of the pressing frame, and the outer parts of the guide block one and the guide block two are slidably connected with the inner part of the stand.

[0013] Preferably, the top end of the buffer spring is fixedly connected with the bottom end of the limiting disc, and the bottom end of the buffer spring is fixedly connected with the inner top end of the accommodating chamber.

[0014] Compared with the related art, the semi-finished license plate excess part cutting device has the following beneficial effects:

[0015] The convex loading platform bears the license plate body, the excess part is accurately placed on the top end of the stress frame, a stable support foundation is provided for the excess part, the pressing frame uniformly presses the excess part, displacement and warping of the excess part are avoided when the frame-shaped cutting knife cuts in, the stress frame slides along the inner wall of the groove downward along with the cutting action, the buffer spring is compressed to realize flexible buffering, the damper synchronously buffers the impact force, the frame-shaped cutting knife can stably and completely cut off the excess part, and finally there is no residual connection in the cut.

[0016] The utility model discloses a protruding carrier platform and the cooperation of plug rod make license plate body only with protruding carrier platform, and the elastic transmission design of telescopic spring can ensure that the compressing force is completely applied to the redundant part, and the body area is not affected.

[0017] The utility model discloses the accurate cooperation of plug rod and license plate mounting hole, combine the overall adhesion of protruding carrier platform and license plate body, form the double positioning structure of hole pin + surface adhesion, and the positioning reference is stable, is not affected by cutting force, simultaneously, the cooperation of guide rod, guide block no. 1 and guide block no. 2 ensures that the stressed plate, the frame type cutting knife always moves along the vertical track, avoids cutting deviation. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The structure schematic view of the semi-finished product license plate redundant part cutting device is provided for the utility model;

[0019] Figure 2 For Figure 1 The structure schematic view of the frame type cutting knife is provided for the utility model;

[0020] Figure 3 For Figure 1 The structure schematic view of the stressed plate is provided for the utility model;

[0021] Figure 4 For Figure 1 The structure schematic view of the working platform is provided for the utility model;

[0022] Figure 5 For Figure 4 The enlarged view of A in the utility model;

[0023] Marked number in the drawing: 1, working platform;2, stand;3, carrier platform;4, hydraulic cylinder;5, stressed plate;6, frame type cutting knife;7, sliding rod;8, frame;9, baffle disc;10, telescopic spring;11, guide rod;12, guide block no. 1;13, guide block no. 2;14, recess;15, protruding carrier platform;16, plug rod;17, license plate;18, damper;19, stressed frame;20, fixed rod;21, containing chamber;22, limit disc;23, buffer spring. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantage of the utility model more clearly, the following is combined with the drawing and example, and the utility model is further detailed, and should understand, the specific example described here is only used to explain the utility model, and is not used to limit the utility model.

[0025] The specific implementation of the utility model is described in detail below in combination with specific embodiments.

[0026] Please refer to Figures 1 to 3 A semi-finished license plate excess part cutting device, comprising: a work platform 1, the top of the work platform 1 is symmetrically provided with a stand 2, two stands 2 are arranged in parallel to provide vertical support for the upper structure, guaranteeing the structural rigidity and stability of the device as a whole, the top of the two stands 2 is provided with a load platform 3, the top of the load platform 3 is provided with a hydraulic cylinder 4 as the core power source of the device, providing stable and controllable vertical driving force, the driving end of the hydraulic cylinder 4 is fixedly connected with a stress plate 5, which can uniformly transmit the driving force of the hydraulic cylinder 4, the bottom end of the stress plate 5 is provided with a frame-shaped cutting knife 6, the cutting knife is a closed loop square structure, the size of the hollow area in the center is completely matched with the standard size of the national standard license plate, the cutting edge is made of hard alloy material, the bottom end of the frame-shaped cutting knife 6 is provided with a rubber pad in the hollow part, the inner walls of the four corners of the stress plate 5 are all slidingly connected with sliding rods 7, the bottom ends of the plurality of sliding rods 7 are provided with pressing frames 8, the top ends of the sliding rods 7 are provided with baffle plates 9, the bottom end of the baffle plate 9 is in contact with the top end of the stress plate 5 in the initial state, the outer part of the sliding rod 7 is provided with a telescopic spring 10, the two ends of the telescopic spring 10 are fixedly connected with the stress plate 5 and the side close to the pressing frame 8, which can realize the elastic transmission of the pressing force and ensure that the pressing force of the pressing frame 8 on the excess part is uniform and flexible.

[0027] A guide assembly is symmetrically installed at the top of the work platform 1, the guide assembly comprises guide rods 11, the top end of the guide rod 11 is fixedly connected with the bottom end of the load platform 3, the bottom end of the two guide rods 11 is fixedly connected with the top end of the work platform 1 at the center of the stand 2, the outer part of the guide rod 11 is slidingly connected with guide blocks 12, the side close to the stress plate 5 is fixedly connected with the outer part of the two guide blocks 12, the outer part of the guide rod 11 is slidingly connected with guide blocks 13 below the guide blocks 12, the side close to the pressing frame 8 is fixedly connected with the outer part of the two guide blocks 13, which can guide the pressing frame 8 to keep vertical movement, the outer part of the guide blocks 12 and the guide blocks 13 is slidingly connected with the inner part of the stand 2, further enhancing the stability and anti-unbalance capacity of the movement.

[0028] Please refer to Figure 1 、 Figure 4 and Figure 5, recess 14, the top end of the work platform 1 is provided with a recess 14, the inner wall of the recess 14 is provided with a convex loading platform 15, a plurality of insertion rods 16 are installed on the top end of the convex loading platform 15, a plurality of license plates 17 are inserted into the plurality of insertion rods 16, the positions of the insertion rods 16 correspond to the mounting hole positions of the license plates 17 one by one, the bottom end of the license plate 17 is in contact with the top end of the convex loading platform 15, the inner wall of the recess 14 is symmetrically provided with a damper 18, the output ends of the two dampers 18 are provided with a stress frame 19, the sliding speed of the stress frame 19 can be buffered, and hard collision is avoided, the outer portion of the stress frame 19 is in sliding connection with the inner wall of the recess 14, the bottom end of the pressing frame 8 is in contact with the top end of the excess part of the license plate 17, the bottom end of the excess part of the license plate 17 is in contact with the top end of the stress frame 19, and a stable clamping state of upper pressing and lower supporting is formed, the top end of the stress frame 19 is in contact with the frame-shaped cutting knife 6 after cutting the license plate 17, the bottom end of the stress frame 19 is provided with a fixing rod 20, a plurality of accommodating cavities 21 are formed in the bottom end of the work platform 1, and the downward pressure during cutting is transmitted.

[0029] Elastic component, the accommodating cavity 21 is internally provided with an elastic component, the elastic component comprises a limiting disc 22, the outer portion of the limiting disc 22 is in sliding connection with the inner wall of the accommodating cavity 21, the accommodating cavity 21 is internally provided with a buffer spring 23, the top end of the buffer spring 23 is fixedly connected with the bottom end of the limiting disc 22, and the bottom end of the buffer spring 23 is fixedly connected with the inner top end of the accommodating cavity 21, so that the stress frame 19 can be compressed to store energy when descending, and the elastic force is released to drive the stress frame 19 to reset after cutting is completed.

[0030] The working principle of the semi-finished license plate excess part cutting device is as follows:

[0031] First, the semi-finished license plate 17 to be cut is placed inside the groove 14 at the top end of the work platform 1, so that the mounting hole of the license plate 17 is precisely fitted on the insertion rod 16 at the top end of the convex loading platform 15, ensuring that the bottom end of the license plate 17 is completely attached to the top end of the convex loading platform 15. At this time, the excess part of the edge of the license plate 17 naturally rests on the top end of the stress frame 19, the stress frame 19 is in the initial position of the inner wall of the groove 14, the buffer spring 23 inside the accommodating chamber 21 is in a natural stretched state, the fixed rod 20 drives the limiting disc 22 to stay in the upper position of the accommodating chamber 21, the hydraulic cylinder 4 is started, the driving end of the hydraulic cylinder 4 pushes the stress plate 5 downward, the stress plate 5 drives the two guide blocks 12 on the sides to slide downward along the guide rod 11, at the same time, the stress plate 5 drives the frame-shaped cutting knife 6 to move downward synchronously, when the stress plate 5 moves downward, the extension spring 10 outside the sliding rod 7 will be compressed downward, the sliding rod 7 drives the pressing frame 8 to move downward synchronously, the guide blocks 13 on the two sides of the pressing frame 8 slide downward along the guide rod 11, the bottom end of the pressing frame 8 first contacts the top end of the excess part of the license plate 17, the hydraulic cylinder 4 continues to push the stress plate 5 downward, so that the extension spring 10 is further contracted, the force is transmitted to the pressing frame 8 through the sliding rod 7, the pressing frame 8 uniformly presses the excess part of the license plate 17 all around, at this time, the bottom end of the stop disc 9 is separated from the top end of the stress plate 5, the sliding rod 7 slides downward on the inner wall of the stress plate 5, ensuring that the pressing force of the pressing frame 8 completely acts on the excess part of the license plate 17, avoiding the body area of the license plate 17 from being subjected to pressure;

[0032] Then the hydraulic cylinder 4 continues to drive downward, the stress plate 5 drives the frame-shaped cutting knife 6 to continue to move downward, the cutting edge of the frame-shaped cutting knife 6 contacts the excess part of the license plate 17, and cutting begins, as the frame-shaped cutting knife 6 cuts downward, the excess part of the license plate 17 generates downward pressure on the stress frame 19, the excess part is gradually separated from the license plate 17, the stress frame 19 slides downward along the inner wall of the groove 14, at the same time, the output end of the damper 18 is retracted downward, the fixed rod 20 at the bottom end of the stress frame 19 drives the limiting disc 22 to slide downward on the inner wall of the accommodating chamber 21, the buffer spring 23 inside the accommodating chamber 21 is compressed, providing flexible buffering for the cutting action, avoiding damage to the equipment caused by hard contact, then the frame-shaped cutting knife 6 continues to move downward until the excess part of the license plate 17 is completely cut off, at this time, the bottom end of the frame-shaped cutting knife 6 contacts the top end of the stress frame 19, ensuring that the cut is completely separated without residual connection, during the entire cutting process, the guide blocks 12 and 13 always slide vertically along the guide rod 11, ensuring the stability of the movement track of the stress plate 5 and the pressing frame 8, avoiding cutting deviation, and in this process, the license plate 17 will contact the rubber pad inside the hollow part at the bottom end of the frame-shaped cutting knife 6, giving stable pressure while preventing the license plate 17 from being damaged;

[0033] After cutting is completed, the driving end of the hydraulic cylinder 4 resets upward, drives the force plate 5 to slide upward along the guide rod 11, the frame cutting knife 6 separates from the top end of the force frame 19 upward with the force plate 5, meanwhile, the elastic force of the extension spring 10 pushes the sliding rod 7 to slide upward on the inner wall of the force plate 5, the pressing frame 8 resets upward with the sliding rod 7, the bottom end of the baffle 9 recontacts with the top end of the force plate 5, the force frame 19 resets upward under the elastic force of the buffer spring 23, the fixed rod 20 drives the limiting disc 22 to slide upward on the inner wall of the accommodating chamber 21, the output end of the damper 18 stretches upward, the force frame 19 returns to the initial position of the inner wall of the recess 14, and finally the cut license plate 17 is manually taken out.

[0034] The above only describes the embodiments of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which is based on the content of the present application specification and drawings, is also included in the patent protection range of the present application.

Claims

1. A semi-finished license plate excess portion cutting device, characterized by, The utility model provides a cutting device for license plate, including: Work platform (1), the top of work platform (1) is symmetrically installed with stand (2), the top of two stand (2) is installed with object table (3), the top of object table (3) is installed with hydraulic cylinder (4), the drive end of hydraulic cylinder (4) is fixedly connected with force plate (5), the bottom of force plate (5) is installed with frame cutting knife (6), and frame cutting knife (6) bottom hollow place is provided with rubber pad, the inner wall of four corners of force plate (5) is slidably connected with sliding rod (7), and the bottom of multiple sliding rod (7) is installed with pressure frame (8), and the outside of sliding rod (7) is equipped with telescopic spring (10); Guide assembly, the top of work platform (1) is symmetrically installed with guide assembly; Groove (14), the top of work platform (1) is provided with groove (14) in the axle center, the inner wall center of groove (14) is installed with convex object table (15), multiple insertion rods (16) are installed on the top of convex object table (15), multiple insertion rods (16) are inserted with license plate (17), the inner wall of groove (14) is symmetrically installed with damper (18), the output end of two damper (18) is installed with force frame (19), the bottom of force frame (19) four corners is installed with fixed rod (20), and the bottom inner wall of work platform (1) is provided with multiple containing cavities (21); Elastic component, the inside of containing cavity (21) is installed with elastic component.

2. The apparatus according to claim 1, wherein Guide assembly includes guide rod (11), and the bottom of two guide rod (11) is respectively fixedly connected with the top of work platform (1) in the center of stand (2), the outside of guide rod (11) is slidably connected with guide block one (12), and the outside of guide rod (11) is slidably connected with guide block two (13) below guide block one (12).

3. The apparatus according to claim 1, wherein Elastic component includes limit disc (22), and the outside of limit disc (22) is slidably connected with the inner wall of containing cavity (21), and the inside of containing cavity (21) is installed with buffer spring (23).

4. The apparatus according to claim 1, wherein The top of sliding rod (7) is installed with baffle disc (9), and the bottom of baffle disc (9) is in contact with the top of force plate (5) in initial state, and the both ends of telescopic spring (10) are fixedly connected with the side of force plate (5) and pressure frame (8) respectively.

5. The apparatus of claim 1, wherein: The bottom of license plate (17) is in contact with the top of convex object table (15), and the outside of force frame (19) is slidably connected with the inner wall of groove (14).

6. The apparatus of claim 1, wherein: The bottom of pressure frame (8) is in contact with the top of the excess part of license plate (17), the bottom of the excess part of license plate (17) is in contact with the top of force frame (19), and frame cutting knife (6) is in contact with the top of force frame (19) after cutting license plate (17) when cutting.

7. The apparatus of claim 2, wherein: The top of guide rod (11) is fixedly connected with the bottom of object table (3), the side of two guide block one (12) is fixedly connected with the outside of force plate (5), the side of two guide block two (13) is fixedly connected with the outside of pressure frame (8), and the outside of guide block one (12) and guide block two (13) is slidably connected with the inside of stand (2).

8. The apparatus of claim 3, wherein: The top end of the buffer spring (23) is fixedly connected with the bottom end of the limiting disc (22), and the bottom end of the buffer spring (23) is fixedly connected with the inner top end of the accommodating cavity (21).