Aluminum foil meal box pressing die with die core convenient to replace

Abstract

The utility model discloses an aluminum foil meal box pressing die convenient to replace a die core, and relates to the technical field of aluminum foil meal box processing, the aluminum foil meal box pressing die comprises a female die and a male die, printing plates are arranged at the corresponding positions of the female die and the male die, and two sides of each printing plate are symmetrically connected with two insertion blocks in a sliding mode. Inserting holes matched with the inserting blocks are formed in the inner wall of the female die and the inner wall of the male die, and a reset spring is arranged between the two inserting blocks. A through groove is formed in the middle of the printing plate, L-shaped connecting plates are fixedly connected to the adjacent sides of the two inserting blocks, the ends, away from the inserting blocks, of the L-shaped connecting plates correspond to the through groove in position, and the ends, close to the through groove, of the two L-shaped connecting plates are distributed in a staggered mode. According to the aluminum foil meal box pressing die convenient to replace the die core, the printing plate is connected with the female die and the male die in an inserted mode, and disassembly and assembly are more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum foil lunch box processing, in particular to an aluminum foil lunch box pressing die with a mold core that is convenient for replacing. Background Art

[0002] Aluminum foil lunch boxes, a common food packaging container, are typically made by stamping. In this process, a die and a punch work together to emboss the desired pattern, texture, or text onto the aluminum foil. This not only enhances the aesthetics of the lunch boxes but also meets the needs of branding and personalization.

[0003] However, in existing manufacturing processes, the printing plates inside the die and punch are often secured with fasteners such as bolts. While this method is stable, it's inflexible and inefficient when it comes to frequently changing printing plates to accommodate the printing needs of different customers or batches of products. Whenever a printing plate needs to be replaced to print a new logo, name, or other image, operators need to expend considerable time and effort loosening the bolts, removing the old plate, installing the new one, and then tightening the bolts again. This process not only increases production costs but can also impact production efficiency.

[0004] Therefore, it is necessary to propose an aluminum foil lunch box pressing die that is easy to replace the die core to solve the above problems. Utility Model Content

[0005] (1) Technical problems solved

[0006] The purpose of the utility model is to provide an aluminum foil lunch box pressing mold with an easy-to-replace mold core, so as to solve the problem of the inconvenience of replacing the existing printing plate proposed in the above background technology.

[0007] (2) Technical solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: a pressing die for an aluminum foil lunch box that is easy to replace the mold core, comprising a concave die and a convex die, wherein corresponding positions of the concave die and the convex die are each provided with a printing plate, two plug-in blocks are symmetrically and slidably connected to the two sides of the printing plate, the inner walls of the concave die and the convex die are provided with plug-in holes adapted to the plug-in blocks, and a return spring is provided between the two plug-in blocks;

[0009] A through slot is provided in the middle of the printing plate, and an L-shaped connecting plate is fixedly connected to one adjacent side of the two plug-in blocks. The end of the L-shaped connecting plate away from the plug-in block corresponds to the position of the through slot, and the two L-shaped connecting plates are staggeredly distributed near the end of the through slot.

[0010] Preferably, grooves are provided at corresponding positions of the concave mold and the convex mold, and the printing plate is assembled in the grooves.

[0011] Preferably, a sliding groove is provided on the back side of the printing plate, and the inserting block is slidably connected to the printing plate via the inserting block.

[0012] Preferably, a cover plate is fixedly connected to the top of the slide groove, and a limiting block for limiting the L-shaped connecting plate is fixedly connected to the middle of the cover plate.

[0013] Preferably, a spring groove is provided on the back side of the printing plate, and a spring is fixedly connected in the spring groove.

[0014] Preferably, a stop block is further included, the stop block is adapted to the through slot, and both sides of the end of the stop block are provided with inclined surfaces.

[0015] Preferably, a guiding slope is provided at one end of the insert block located outside the printing plate.

[0016] (3) Beneficial effects

[0017] Compared with the prior art, the present invention provides an aluminum foil lunch box pressing mold that is easy to replace the mold core, which has the following beneficial effects:

[0018] 1. The aluminum foil lunch box pressing mold with easy replacement of mold core has insert blocks slidingly arranged on both sides of the printing plate, and opening holes at the corresponding positions of the concave mold and the convex mold. With the cooperation of the two, the printing plate is positioned, making its assembly more convenient.

[0019] 2. The aluminum foil lunch box pressing mold with easy mold core replacement has a through slot in the middle of the printing plate and an L-shaped connecting plate fixed on the insert block. The L-shaped connecting plate is moved through the through slot to drive the insert block to retract to the inner side of the printing plate, so that it is disassembled, making it more convenient to disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a cross-sectional schematic diagram of the structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the main view of the printing plate of the utility model;

[0022] Figure 3 It is a cross-sectional schematic diagram of the printing plate of the present invention.

[0023] In the figure: 2, printing plate; 3, die; 5, punch; 7, spring groove; 8, L-shaped connecting plate; 9, return spring; 10, slide; 11, insert block; 12, through slot; 13, limit block; 14, stop block; 15, cover plate. DETAILED DESCRIPTION

[0024] 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 the embodiments.

[0025] See also Figure 1-3 As shown, a die for pressing an aluminum foil lunch box that facilitates mold core replacement comprises a die 3 and a punch 5. A printing plate 2 is provided at corresponding positions on the die 3 and punch 5. Two plugs 11 are symmetrically and slidably connected to the printing plate 2 on either side. The inner walls of the die 3 and punch 5 are provided with sockets that mate with the plugs 11. A return spring 9 is provided between the two plugs 11. A through slot 12 is provided in the middle of the printing plate 2. An L-shaped connecting plate 8 is fixedly connected to the adjacent sides of the two plugs 11. The ends of the L-shaped connecting plates 8, which are away from the plugs 11, correspond to the positions of the through slots 12. The two L-shaped connecting plates 8 are staggered at their ends near the through slots 12. Preferably, grooves are provided at corresponding positions on the die 3 and punch 5, and the printing plate 2 is assembled within the grooves.

[0026] During assembly, the printing plate 2 is placed in the die 3 and the punch 5, pressure is applied to the printing plate 2, the insert block 11 shrinks to the inner side of the printing plate 2, and the return spring 9 is compressed. When the printing plate 2 reaches the predetermined position, the return spring 9 pushes the two insert blocks 11 into the corresponding sockets respectively, thereby completing the assembly of the printing plate 2.

[0027] During disassembly, the two L-shaped connecting plates 8 are moved through the through slots 12 to slide relative to each other. The two L-shaped connecting plates 8 respectively pull the two plug blocks 11 out of the insertion holes. At this time, the printing plate 2 can be taken out.

[0028] In some embodiments, a slide groove 10 is provided on the back of the printing plate 2, and the insert block 11 is slidably connected to the printing plate 2 through the insert block 11. The back of the printing plate 2 is the side of the printing plate 2 opposite to the printing surface.

[0029] Specifically, a cover plate 15 is fixedly connected to the top of the chute 10 , and a limiting block 13 for limiting the L-shaped connecting plate 8 is fixedly connected to the middle of the cover plate 15 .

[0030] During installation, the return spring 9 and the insert 11 are placed in the chute 10, the cover 15 is installed, and the stopper 13 is inserted between the two L-shaped connecting plates 8. The cover 15 is then screwed to the printing plate 2 to complete the installation of the insert 11. The chute 10 and the cover 15 cooperate to make the connection more stable, preventing the insert 11 from shaking. The stopper 13 limits the position of the L-shaped connecting plates 8, limiting the extension length of the insert 11, ensuring that the extension length of the two inserts 11 is consistent, facilitating assembly.

[0031] To facilitate the removal of the printing plate 2 from the die 3 and punch 5, a spring slot 7 is provided on the back of the printing plate 2. A spring is secured within the slot. Specifically, the length of the spring is greater than the depth of the slot. When the insert 11 is removed from the socket, the spring pushes the printing plate 2 away from the socket, preventing it from being re-inserted and allowing the printing plate 2 to be removed. The spring's force also prevents the printing plate 2 from shaking.

[0032] In order to facilitate the disassembly of the printing plate 2 , a stop block 14 is further included. The stop block 14 is adapted to the through slot 12 , and both sides of the end of the stop block 14 are provided with inclined surfaces.

[0033] During use, the stopper 14 is inserted into the through slot 12 and pressure is applied to the printing plate 2. Under the action of the inclined surface, the two L-shaped connecting plates 8 are pushed to slide relative to each other, thereby retracting the inserting block 11 to the inner side of the printing plate 2. At the same time, the stopper 14 can limit the position of the two L-shaped connecting plates 8, preventing the return spring 9 from rebounding and causing the inserting block 11 to return to its original position.

[0034] In order to make the printing plate 2 assemble more convenient, an end of the insert block 11 outside the printing plate 2 is provided with a guide ramp. When the printing plate 2 is assembled, under the effect of the guide ramp, the insert block 11 is contracted to the inside of the printing plate 2 so as to guide the insert block 11.

[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pressing die for an aluminum foil lunch box that is easy to replace the die core, comprising a concave die (3) and a convex die (5), characterized in that: The corresponding positions of the concave mold (3) and the convex mold (5) are both provided with printing plates (2), and two plug blocks (11) are symmetrically slidably connected to the two sides of the printing plate (2). The inner walls of the concave mold (3) and the convex mold (5) are provided with sockets adapted to the plug blocks (11), and a return spring (9) is provided between the two plug blocks (11); A through slot (12) is provided in the middle of the printing plate (2), and an L-shaped connecting plate (8) is fixedly connected to one side adjacent to the two inserting blocks (11), and the end of the L-shaped connecting plate (8) away from the inserting block (11) corresponds to the position of the through slot (12), and the ends of the two L-shaped connecting plates (8) close to the through slot (12) are staggered.

2. The aluminum foil lunch box pressing mold with easy mold core replacement according to claim 1, characterized in that: The corresponding positions of the concave mold (3) and the convex mold (5) are both provided with grooves, and the printing plate (2) is assembled in the grooves.

3. The aluminum foil lunch box pressing mold with easy mold core replacement according to claim 1, characterized in that: A sliding groove (10) is provided on the back of the printing plate (2), and the inserting block (11) is slidably connected to the printing plate (2) via the inserting block (11).

4. The aluminum foil lunch box pressing mold with easy mold core replacement according to claim 3, characterized in that: The top end of the chute (10) is fixedly connected to a cover plate (15), and the middle portion of the cover plate (15) is fixedly connected to a limiting block (13) for limiting the position of the L-shaped connecting plate (8).

5. The aluminum foil lunch box pressing mold with easy core replacement according to claim 1, characterized in that: A spring slot (7) is provided on the back of the printing plate (2), and a spring is fixedly connected in the spring slot (7).

6. The aluminum foil lunch box pressing mold with easy mold core replacement according to claim 1, characterized in that: It also includes a stop block (14), which is adapted to the through slot (12), and has inclined surfaces on both sides of the end of the stop block (14).

7. The aluminum foil lunch box pressing mold with easy mold core replacement according to claim 1, characterized in that: One end of the insert block (11) located outside the printing plate (2) is provided with a guiding slope.

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