Matrix used in license plate production device

Abstract

The utility model relates to the field of license plate production tools, in particular to a character die used in a license plate production device. Comprising an upper die and a lower die rotationally arranged below the upper die, concave and convex die surfaces used for compression molding are arranged in the top ends of the opposite side faces of the upper die and the lower die respectively, a first opening is formed in the bottom face of the upper die, a second opening is formed in the top face of the lower die, and a space formed by the first opening and the second opening when the upper die and the lower die are assembled can give way to an original frame of the license plate. And deformation caused by stress during pressing is avoided. The utility model has the beneficial effects that by utilizing the lower die rotating below the upper die, the lower die can freely rotate to a certain angle around the rotating point of the upper die by virtue of the gravity of the lower die when no external pressure is applied, so that the effect of separating the upper die from the lower die is achieved, and a license plate clamped between the upper die and the lower die can be conveniently assembled and disassembled.

Description

Technical Field

[0001] The utility model relates to the field of number plate production tools, in particular to a character mold used in a number plate production device. Background Art

[0002] When producing motor vehicle license plates, fully automatic fonts are required. The existing fully automatic fonts are mainly composed of separate upper and lower dies. Under the action of the press, the lower die is combined with the upper die to achieve the purpose of pressing the license plate. After the pressing is completed, the upper and lower dies are separated by the elastic force of the steel sheet connected to the lower die. However, the service life of the steel sheet is short and metal fatigue is prone to occur. When metal fatigue accumulates to a certain extent, the steel sheet will break. After the steel sheet breaks, the separated lower die will interfere with other fonts and the press structure during the process of retracting the font library, affecting the operation of the entire fully automatic font pressing equipment. Summary of the invention

[0003] The technical problem to be solved by the utility model is that a fully automatic font mold is required for the production of motor vehicle license plates. The existing fully automatic font mold is mainly composed of a separate upper mold and a lower mold. Under the action of a press, the lower mold is combined with the upper mold to achieve the purpose of pressing the license plate. After the pressing is completed, the upper mold and the lower mold are separated by the elastic force of the steel sheet connected to the lower mold. However, the service life of the steel sheet is short and metal fatigue is prone to occur. When the metal fatigue accumulates to a certain extent, the steel sheet will break. After the steel sheet breaks, the separated lower mold will interfere with other fonts and the press structure during the process of retracting the font library, affecting the operation of the entire fully automatic font pressing equipment.

[0004] In order to solve the above problems, the technical solution adopted by the utility model is: a character mold used in a license plate production device, including an upper mold and a lower mold rotatably arranged below the upper mold, the upper mold and the lower mold are respectively provided with concave and convex mold surfaces for pressing and molding at the top of a side surface facing each other, the bottom surface of the upper mold is provided with an opening one, and the top surface of the lower mold is provided with an opening two, and the space formed by the opening one and the opening two when the upper mold and the lower mold are closed can make way for the original frame of the license plate to avoid deformation due to force during pressing.

[0005] The beneficial effect of the utility model is that by utilizing the lower mold rotating below the upper mold, the lower mold can rely on its own gravity to freely rotate to a certain angle around the rotation point with the upper mold when there is no external pressure, thereby achieving the effect of separating the upper mold from the lower mold, so as to facilitate the loading and unloading of the license plate clamped between the upper mold and the lower mold.

[0006] The utility model further improves the technical solution adopted as follows: an installation groove is provided at the connection between the upper mold and the lower mold to facilitate the insertion of the lower mold connecting rod, circular through holes are provided on both sides of the installation groove, and a circular through hole is also provided at the corresponding position of the lower mold connecting rod, and a pin shaft connecting the upper mold and the lower mold is inserted in the circular through hole.

[0007] The beneficial effect of the above improvement is that the upper mold and the lower mold are assembled together by connecting the pin shaft and the circular through hole, and the friction between the pin shaft and the circular through hole in the upper mold is small when the lower mold rotates, which will not affect the opening of the lower mold under its own gravity.

[0008] The utility model further improves the technical solution adopted as follows: the end of the connecting rod of the lower die is arranged obliquely to limit the rotation angle of the lower die, and the connection with the second opening is arranged with a rounded corner.

[0009] The beneficial effect of the above improvement is: by cooperating with the inclination angle of the installation slot and the end of the lower die connecting rod, the opening angle of the lower die can be limited, thereby preventing the lower die from opening too much and interfering with the press structure and affecting the operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0011] Figure 2 It is the front view of the utility model;

[0012] Figure 3 This is a state diagram of the upper mold and the lower mold in the utility model.

[0013] The text markings in the figure are as follows: 1. upper die; 2. lower die; 3. pin; 4. opening one; 5. opening two; 6. mounting slot; 7. circular through hole. DETAILED DESCRIPTION

[0014] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the scope of protection of the present invention.

[0015] Embodiment 1:

[0016] like Figure 1-3 As shown, a character mold used in a license plate production device includes an upper mold 1 and a lower mold 2 that is rotatably arranged below the upper mold 1. The upper mold 1 and the lower mold 2 have concave and convex mold surfaces for pressing and molding at the top of the opposite side. The upper mold 1 has an opening 4 at the bottom surface, and the lower mold 2 has an opening 5 at the top surface. The space formed by the opening 4 and the opening 5 when the upper mold 1 and the lower mold 2 are combined can make way for the original frame of the license plate to avoid deformation due to force during pressing. By using the lower mold 2 that is rotated below the upper mold 1, the lower mold 2 can be freely rotated to a certain angle around the rotation point with the upper mold 1 by its own gravity when there is no external pressure, so as to achieve the effect of separating the upper mold 1 from the lower mold 2, so as to facilitate the loading and unloading of the license plate sandwiched between the upper mold 1 and the lower mold 2.

[0017] Embodiment 2:

[0018] The technical solution is basically the same as that of the first embodiment, except that Figure 1-3 As shown, the connection between the upper die 1 and the lower die 2 is provided with a mounting notch 6, which is convenient for inserting the connecting rod of the lower die 2. Circular through holes 7 are provided on both sides of the mounting notch 6. The corresponding connection rod of the lower die 2 is also provided with a circular through hole 7. The pin 3 connecting the upper die 1 and the lower die 2 is inserted into the circular through hole 7. The end of the connecting rod of the lower die 2 is tilted to limit the rotation angle of the lower die 2, and the connection with the opening 2 5 is rounded. The upper die 1 and the lower die 2 are assembled together by connecting the pin 3 and the circular through hole 7, and the friction between the pin 3 and the circular through hole 7 in the upper die 1 when the lower die 2 rotates is small, which will not affect the opening of the lower die 2 under its own gravity. By using the mounting notch 6 and the tilt angle of the end of the connecting rod of the lower die 2 to limit the opening angle range of the lower die 2, it is avoided that the lower die 2 is opened too much and interferes with the press structure, affecting the operation of the equipment.

[0019] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0020] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. The above is only the preferred implementation method of the utility model. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principle of the utility model, they can make several improvements, embellishments or changes, and can also combine the above technical features in an appropriate manner; these improvements, embellishments, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection scope of the utility model.

Claims

1. A character mold for a license plate production device, characterized in that: The invention comprises an upper die (1) and a lower die (2) rotatably arranged below the upper die (1); the upper die (1) and the lower die (2) are provided with concave and convex die surfaces for pressing and forming at the top ends of the opposite sides thereof; the upper die (1) is provided with an opening (4) at the bottom surface thereof, and the lower die (2) is provided with an opening (5) at the top surface thereof; the space formed by the opening (4) and the opening (5) when the upper die (1) and the lower die (2) are closed can make way for the original frame of the license plate, thereby avoiding deformation due to force during pressing.

2. The character mold for a license plate production device according to claim 1, characterized in that: A mounting notch (6) is provided at the connection between the upper die (1) and the lower die (2) to facilitate the insertion of the lower die connecting rod. Circular through holes (7) are provided on both sides of the mounting notch (6). A circular through hole (7) is also provided at the corresponding position of the lower die (2) connecting rod. A pin shaft (3) connecting the upper die (1) and the lower die (2) is inserted into the circular through hole (7).

3. The character mold for a license plate production device according to claim 2, characterized in that: The end of the connecting rod of the lower die (2) is arranged at an angle to limit the rotation angle of the lower die (2), and the connection with the second opening (5) is arranged with a rounded corner.

Images