Automatic stamping die for aluminum foil meal box

Abstract

The utility model discloses an automatic stamping die for an aluminum foil meal box, which belongs to the technical field of stamping of aluminum foil meal boxes and particularly comprises an upper stamping die plate and a lower stamping die plate, a guide component is movably connected between the upper stamping die plate and the lower stamping die plate, the upper stamping die plate comprises an upper die plate, and the lower die plate comprises a lower die plate. A female die cover is fixedly connected to the upper die plate, a female die is fixedly connected to the female die cover, a knockout plate is movably connected to the female die, and the knockout plate is connected with the female die cover through a plurality of limiting mechanisms. Through the arrangement of the limiting mechanism, the knockout plate can be longitudinally limited in the sliding process of the knockout plate in the female die, the problem that the knockout plate may deviate is avoided, the problem that the knockout plate makes non-uniform contact with the die is also avoided, abrasion is reduced, and the service life of the die is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of aluminum foil lunch box stamping, and particularly relates to an automatic stamping die for the aluminum foil lunch box. Background Art

[0002] Aluminum foil lunch boxes are a very light and practical disposable tableware. Compared with plastic lunch boxes, paper lunch boxes and simple lunch boxes surrounded by aluminum foil, their physical or chemical structure is more stable, so they are more resistant to high temperature, oil and salt. They are suitable for a variety of occasions with high requirements for food storage and are widely welcomed by various food providers.

[0003] The prior art discloses a Chinese utility model patent with application number 202122327887.3, which discloses a stamping die for producing aluminum foil lunch boxes, comprising a stamping upper die and a stamping lower die, wherein four groups of guide assemblies are movably connected between the stamping upper die and the stamping lower die, the stamping upper die comprises an upper template, a die assembly, an upper piston, and a stripping plate, the die assembly comprises a punching cylinder, a punching plate, a die, an upper inner ring, an upper mouth pad, and an upper shearing ring, the stamping lower template comprises a lower template, a punch assembly, and a base mechanism, the punch assembly comprises a punch, a lower thin ring, a lower inner ring, a pressure ring, and a lower shearing ring arranged in sequence from the inside to the outside, a lower steel plate and a lower guide column inserted in the lower steel plate are provided below the base mechanism, and two lower pistons, one large and one small, are provided at the bottom of the lower steel plate. The utility model improves the quality of aluminum foil lunch box production and reduces the defective rate.

[0004] The above-mentioned existing technology still has shortcomings: when the punching cylinder drives the punching plate to move, the aluminum foil lunch box in the die can be discharged, but in the process of the punching cylinder driving the punching plate to move, the punching plate may be offset, resulting in uneven contact between the punching plate and the mold, increasing wear and shortening the service life of the mold. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides an automatic stamping die for aluminum foil lunch boxes, which has the characteristics of avoiding the deviation of the punching plate, reducing wear and tear, and increasing the service life of the die.

[0006] To achieve the above-mentioned object, the utility model provides the following technical solution: an automatic stamping die for an aluminum foil lunch box, comprising an upper stamping template and a lower stamping template, wherein a guide assembly is movably connected between the upper stamping template and the lower stamping template, wherein the upper stamping template comprises an upper template, a die cover is fixedly connected to the upper template, a die is fixedly connected to the die cover, a punch plate is movably connected to the die, and the punch plate is connected to the die cover via a plurality of limiting mechanisms;

[0007] Each of the limiting mechanisms includes a fixed sleeve and a sliding rod, the fixed sleeve is fixedly connected to the die cover, the sliding rod is slidably inserted into the fixed sleeve, and one end of the sliding rod is fixedly connected to the punching plate.

[0008] Preferably, the lower punching template includes a lower template, the lower template is movably connected to a pressure ring seat, a punch fixedly connected to the lower template is provided in the pressure ring seat, and the punch and the die are adapted to be arranged.

[0009] Preferably, the upper template is fixedly connected with an upper notch seat, and the upper notch is fixedly connected with the upper notch seat; the lower template is fixedly connected with a lower notch seat, and the lower notch seat is fixedly connected with a lower notch adapted to the upper notch.

[0010] Preferably, a punching cylinder is fixedly connected to the upper mold plate, and the piston rod of the punching cylinder passes through the die cover and is fixedly connected to the punching plate.

[0011] Preferably, a convex pattern is provided on the side of the punch facing the punch, and a concave pattern matching the convex pattern is provided on the punch, and the concave pattern and the convex pattern cooperate to form the embossed pattern structure of the aluminum foil lunch box.

[0012] Preferably, the upper template is provided with a mounting groove for the fixing sleeve to pass through, and the die cover is provided with a fixing groove adapted to the fixing sleeve.

[0013] Preferably, one end of the sliding rod is fixedly connected to a nut, and the other end of the sliding rod is inserted into a positioning hole set on the punching plate. An internal thread is set on the inner wall of the positioning hole, and an external thread adapted to the internal thread is set on the sliding rod.

[0014] Preferably, a buffer is also sleeved on the sliding rod.

[0015] Preferably, the buffer includes a buffer spring, which is sleeved on the outside of the sliding rod, and both ends of the buffer spring are fixedly connected to fixed rings, one of the fixed rings is movably sleeved on the sliding rod and fixedly connected to the nut, and the other fixed ring is movably sleeved on the sliding rod and movably connected to the fixed sleeve.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The utility model provides a limiting mechanism, which can play a role of longitudinal limiting on the striking plate when the striking plate slides in the die, thereby avoiding the problem of possible deviation of the striking plate and the problem of uneven contact between the striking plate and the die, reducing wear and tear and increasing the service life of the die. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the main cross-section of the present invention;

[0022] Figure 4 This is a schematic diagram of the second main cross-sectional structure of the present invention;

[0023] Figure 5 For this utility model Figure 4 A schematic diagram of the partially enlarged structure at center A;

[0024] In the figure: 1. Upper template; 2. Die cover; 3. Die; 4. Punching plate; 5. Limiting mechanism; 501. Fixing sleeve; 502. Slide rod; 503. Mounting slot; 504. Fixing slot; 505. Nut; 506. Positioning hole; 507. Buffer spring; 508. Fixing ring; 6. Lower template; 7. Punch; 8. Upper notch; 9. Lower notch; 10. Punching cylinder; 11. Convex pattern; 12. Concave pattern. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Example 1

[0027] See also Figure 1-5 This embodiment provides the following technical solutions: an automatic stamping die for an aluminum foil lunch box, comprising an upper stamping template and a lower stamping template, wherein a guide component is movably connected between the upper stamping template and the lower stamping template.

[0028] The upper stamping template includes an upper template 1, to which a die cover 2 is fixedly connected, to which a die 3 is fixedly connected, and to which a punching plate 4 is movably connected; the lower stamping template includes a lower template 6, to which a pressure ring seat is movably connected, and a punch 7 fixedly connected to the lower template 6 is arranged in the pressure ring seat, and the punch 7 is adapted to be matched with the die 3. In some embodiments, the punch 7 and the die 3 cooperate to form the forming structure of the aluminum foil lunch box.

[0029] In some embodiments, a groove adapted to the punching plate 4 is provided on the top of the die 3 , and the punching plate 4 is movably connected in the groove on the die 3 .

[0030] The upper template 1 is fixedly connected to an upper notch seat, the upper notch seat is fixedly connected to an upper notch 8, the lower template 6 is fixedly connected to a lower notch seat, and the lower notch seat is fixedly connected to a lower notch 9 adapted to the upper notch 8. By setting the upper notch 8 and the lower notch 9, the edge of the aluminum foil lunch box can be punched during the movement of the upper template 1 toward the lower template 6.

[0031] A punching cylinder 10 is fixedly connected to the template, and the piston rod of the punching cylinder 10 passes through the die cover 2 and is fixedly connected to the punching plate 4. Through the setting of the punching cylinder 10 and the punching plate 4, the formed aluminum foil lunch box can be pushed out of the die 3.

[0032] A convex pattern 11 is provided on the side of the punch plate 4 facing the punch 7, and a concave pattern 12 adapted to the convex pattern 11 is provided on the punch 7. The concave pattern 12 and the convex pattern 11 cooperate with each other to form the embossed pattern structure of the aluminum foil lunch box. Through the provision of the convex pattern 11 and the concave pattern 12, a specific pattern can be formed on the aluminum foil lunch box during the stamping process of the punch 7 and the die 3.

[0033] The punching plate 4 is connected to the die cover 2 through multiple limiting mechanisms 5. Each limiting mechanism 5 includes a fixed sleeve 501 and a sliding rod 502. The fixed sleeve 501 is fixedly connected to the die cover 2. The sliding rod 502 slides through the fixed sleeve 501. The bottom end of the sliding rod 502 is fixedly connected to the punching plate 4.

[0034] By setting up the limiting mechanism 5, the punching plate 4 can be longitudinally limited during its sliding process in the die 3, thereby avoiding the problem of possible deviation of the punching plate 4 and the problem of uneven contact between the punching plate 4 and the die, reducing wear and improving the service life of the die.

[0035] The upper mold plate 1 is provided with a mounting groove 503 for the fixing sleeve 501 to pass through, and the die cover 2 is provided with a fixing groove 504 adapted to the fixing sleeve 501 .

[0036] Example 2

[0037] See also Figure 3-5 In order to facilitate the disassembly and assembly of the limiting mechanism 5 on the punching plate 4, the top end of the slide rod 502 is fixedly connected with a nut 505, and the lower end of the slide rod 502 is inserted into the positioning hole 506 set on the punching plate 4. The inner wall of the positioning hole 506 is provided with an internal thread, and the slide rod 502 is provided with an external thread that matches the internal thread. The slide rod 502 can be disassembled and assembled on the punching plate 4 through the set internal and external threads.

[0038] The slide bar 502 is also provided with a buffer, which includes a buffer spring 507. The buffer spring 507 is sleeved on the outer side of the slide bar 502. Both ends of the buffer spring 507 are fixedly connected to a fixing ring 508. The upper fixing ring 508 is movably sleeved on the slide bar 502 and fixedly connected to the nut 505. The lower fixing ring 508 is movably sleeved on the slide bar 502 and movably connected to the fixing sleeve 501. Through the provided buffer spring 507, when the punching cylinder 10 drives the punching plate 4 to move downward, and in the process of pushing the formed aluminum foil lunch box out of the die 3, the punching plate 4 has a buffering effect, thereby avoiding excessive impact on the formed aluminum foil lunch box, thereby affecting the quality of the aluminum foil lunch box and also affecting the service life of the mold.

[0039] The working principle of the utility model is as follows: when in use, the aluminum foil is transported to a suitable position, and the stamping equipment drives the upper template 1 to move along the guide assembly toward the lower template 6. With the cooperation of the upper notch 8 and the lower notch 9, the aluminum foil is punched out. With the cooperation of the concave die 3 and the convex die 7, the aluminum foil is stamped and formed. At the same time, the convex pattern 11 cooperates with the concave pattern 12 to form a specific pattern on the aluminum foil lunch box.

[0040] After stamping, the stamping equipment drives the upper template 1 to move upward along the guide assembly to a certain position, and the punching cylinder 10 drives the punching plate 4 to move downward and push the formed aluminum foil lunch box out of the die 3. In the process of the punching plate 4 moving downward, the punching plate 4 drives the slide bar 502 to move downward along the fixed sleeve 501, performing a longitudinal limit operation on the punching plate 4, and while the slide bar 502 moves downward, the nut 505 drives the upper fixing ring 508 to move toward the lower fixing ring 508, squeezing the buffer spring 507. Under the action of the buffer spring 507, the impact of the formed aluminum foil lunch box being pushed by the punching cylinder 10 and the punching plate 4 is slowed down. After the formed aluminum foil lunch box is pushed out of the die 3, the punching cylinder 10 and the punching plate 4 are reset.

[0041] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An automatic stamping die for aluminum foil lunch boxes, comprising an upper stamping die plate and a lower stamping die plate, wherein a guide assembly is movably connected between the upper stamping die plate and the lower stamping die plate, characterized in that: The upper punching template comprises an upper template (1), a die cover (2) is fixedly connected to the upper template (1), a die (3) is fixedly connected to the die cover (2), a punching plate (4) is movably connected to the die (3), and the punching plate (4) is connected to the die cover (2) via a plurality of limiting mechanisms (5); Each of the limiting mechanisms (5) comprises a fixed sleeve (501) and a sliding rod (502), wherein the fixed sleeve (501) is fixedly connected to the die cover (2), the sliding rod (502) is slidably arranged inside the fixed sleeve (501), and one end of the sliding rod (502) is fixedly connected to the punching plate (4).

2. The automatic stamping die for aluminum foil lunch boxes according to claim 1, characterized in that: The lower punching template comprises a lower template (6), a blank holder seat is movably connected to the lower template (6), a punch (7) fixedly connected to the lower template (6) is arranged in the blank holder seat, and the punch (7) is adapted to be arranged with the die (3).

3. The automatic stamping die for aluminum foil lunch boxes according to claim 2, characterized in that: An upper notch seat is fixedly connected to the upper template (1), an upper notch (8) is fixedly connected to the upper notch seat, and a lower notch seat is fixedly connected to the lower template (6), a lower notch seat is fixedly connected to the lower notch seat, and a lower notch (9) adapted to the upper notch (8) is fixedly connected to the lower notch seat.

4. The automatic stamping die for aluminum foil lunch boxes according to claim 1, characterized in that: A punching cylinder (10) is fixedly connected to the upper mold plate (1), and a piston rod of the punching cylinder (10) passes through the die cover (2) and is fixedly connected to the punching plate (4).

5. The automatic stamping die for aluminum foil lunch boxes according to claim 1, characterized in that: A convex pattern (11) is provided on the side of the punching plate (4) facing the punch (7), and a concave pattern (12) adapted to the convex pattern (11) is provided on the punch (7). The concave pattern (12) and the convex pattern (11) cooperate to form an embossed pattern structure of the aluminum foil lunch box.

6. The automatic stamping die for aluminum foil lunch boxes according to claim 5, characterized in that: The upper mold plate (1) is provided with a mounting groove (503) for the fixing sleeve (501) to pass through, and the female mold (3) cover (2) is provided with a fixing groove (504) adapted to the fixing sleeve (501).

7. The automatic stamping die for aluminum foil lunch boxes according to claim 6, characterized in that: One end of the slide rod (502) is fixedly connected to a nut (505), and the other end of the slide rod (502) is inserted into a positioning hole (506) provided on the punching plate (4). An internal thread is provided on the inner wall of the positioning hole (506), and an external thread adapted to the internal thread is provided on the slide rod (502).

8. The automatic stamping die for aluminum foil lunch boxes according to claim 7, characterized in that: A buffer is also sleeved on the sliding rod (502).

9. The automatic stamping die for aluminum foil lunch boxes according to claim 8, characterized in that: The buffer includes a buffer spring (507), the buffer spring (507) is sleeved on the outside of the slide rod (502), and both ends of the buffer spring (507) are fixedly connected to fixed rings (508), one of the fixed rings (508) is movably sleeved on the slide rod (502) and fixedly connected to the nut (505), and the other fixed ring (508) is movably sleeved on the slide rod (502) and movably connected to the fixed sleeve (501).

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