Bottom punching device of paper bowl machine

Abstract

The utility model discloses a paper bowl machine bottom punching device which comprises a working table, an upper die and a lower die, the upper side face of the upper die is connected with a punching structure located on the working table, a mounting base with an annular groove formed in the upper side face is arranged in the working table, and the lower side face of the lower die is communicated with the mounting base. An elastic material frame inserted into the annular groove is arranged in the mounting base, a plurality of springs are arranged in the annular groove, and the upper end and the lower end of each spring are connected with the lower side face of the elastic material frame and the lower side face of the annular groove correspondingly so that the elastic material frame can move up and down in the lower die; the material bouncing frame can move downwards to make contact with the upper side face of the circular truncated cone. An adsorption assembly capable of adsorbing the paper bowls to the upper side face of the material bouncing frame is arranged in the material bouncing frame. The paper bowl popping device has the advantage of automatically popping up the paper bowl.

Description

Technical Field

[0001] The utility model belongs to the technical field of bottom punching devices for paper bowl machines and relates to a bottom punching device for a paper bowl machine. Background Art

[0002] A paper bowl is a paper container made of paper pulp, usually in the shape of a bowl. It is one of the common items in people's daily life, mainly used to hold food or beverages. The bottom punching device of a paper bowl machine refers to the component used to make the bottom of a paper bowl. In the paper bowl manufacturing process, the bottom punching device is usually used to punch paper or cardboard into the bottom of the desired shape to ensure that the structure of the bottom of the paper bowl is firm.

[0003] The Chinese utility model patent with authorization announcement number CN220482703U discloses a bottom punching device for a paper bowl machine, including a bottom punching device body, a driving mechanism is provided on the inner top of the bottom punching device body, a first connecting groove is opened inside the driving mechanism, a clamping mechanism is provided in the first connecting groove, a lower mold is fixedly connected to the inner bottom of the bottom punching device body, a second connecting groove and a third connecting groove are provided in the lower mold, a sliding mechanism is provided in the second connecting groove, and a pressing mechanism is provided in the third connecting groove. This technical solution realizes the disassembly and assembly of the upper mold by setting a clamping mechanism, and the paper bowl with the punched bottom is ejected by the sliding mechanism and the pressing mechanism, which is convenient for the staff to take. However, this technical solution requires the staff to continuously press the pressing mechanism to continuously eject the paper bowl, which may be inconvenient during use. Utility Model Content

[0004] In view of the above problems, the utility model proposes a bottom flushing device for a paper bowl machine, which well solves the problems in the prior art.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: a bottom punching device for a paper bowl machine, comprising a workbench, an upper die and a lower die, the upper side surface of the upper die is connected to a punching structure located on the workbench, a mounting seat with an annular groove on the upper side surface is arranged in the workbench, the lower side surface of the lower die is communicated with the mounting seat, a spring material rack inserted in the annular groove is arranged in the mounting seat, a plurality of springs for pushing the spring material rack to move up and reset are arranged in the annular groove, the upper and lower ends of the spring are respectively connected to the lower side surface of the spring material rack and the lower side surface of the annular groove, and the spring material rack can be moved down to contact with the upper side surface of the mounting seat;

[0006] The material rack is provided with an adsorption component capable of adsorbing the paper bowl on the upper side of the material rack.

[0007] Furthermore, the stamping structure includes an electric push rod arranged on the upper side surface inside the workbench and a connecting block arranged at the output end of the electric push rod, the lower side surface of the connecting block is provided with a circular groove, the upper end of the upper mold is inserted into the circular groove, the upper mold and the connecting block are both provided with interconnected threaded holes, the threaded holes are threadedly connected with fixing bolts, and one end of the fixing bolt extending out of the threaded hole is threadedly connected with a fixing nut.

[0008] Furthermore, an air cavity is provided in the material rack, and a plurality of air holes connected to the air cavity are provided on the upper side of the material rack. The adsorption component includes a connecting tube arranged in the truncated cone and a lifting tube capable of moving up and down in the connecting tube. The upper side of the lifting tube is sealed and connected to the material rack, and the lifting tube is connected to the air cavity, and the lower side of the lifting tube is connected to an air suction component.

[0009] Furthermore, an air pump cavity is opened at the lower end of the workbench, and the air suction component includes an air pump and a rubber air pipe arranged in the air pump cavity, and both ends of the rubber air pipe are respectively sealed and connected to the air pump and the lower side of the lifting pipe.

[0010] Furthermore, the right side of the air pump chamber is rotatably connected to a closed door capable of closing the air pump chamber, and a handle is provided on the right side of the closed door.

[0011] Furthermore, a lighting device located on a workbench is provided at the right rear of the lower mold.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model realizes automatic ejection of the paper bowl through the ejection rack, the mounting platform and the spring, prevents the paper bowl from being stuck in the lower die, and improves the working efficiency of the bottom punching device; realizes adsorption of the paper bowl through the adsorption component, prevents the paper bowl from escaping from the bottom punching device when ejecting and causing waste; realizes rapid installation and replacement of the upper die through the connecting block, the fixing bolt and the fixing nut, and improves the working efficiency of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 For this utility model Figure 1 Right view of;

[0016] Figure 3 For this utility model Figure 1 A partial enlarged view of part A.

[0017] In the figure, 1-workbench; 2-upper die; 3-lower die; 4-electric push rod; 5-connecting block; 6-fixing bolt; 7-fixing nut; 8-mounting seat; 9-spring rack; 10-spring; 11-lifting tube; 12-connecting tube; 13-rubber air pipe; 14-air pump; 15-enclosed door; 16-illumination device; 101-air pump cavity; 801-ring groove; 901-air cavity; 902-air hole; 151-handle. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] like Figure 1 , Figure 2 , Figure 3 As shown, a bottom punching device for a paper bowl machine comprises a workbench 1, an upper die 2 and a lower die 3, the upper side of the upper die 2 is connected to a punching structure located on the workbench 1, a mounting seat 8 with an annular groove 801 on the upper side is fixed in the workbench 1 by bolts, the lower side of the lower die 3 is connected to the mounting seat 8, a springing frame 9 inserted in the annular groove 801 is arranged in the mounting seat 8, a plurality of springs 10 for pushing the springing frame 9 to move upward are arranged in the annular groove 801, the upper and lower ends of the spring 10 are respectively connected to the lower side of the springing frame 9 and the lower side of the annular groove 801, the springing frame 9 can move downward to contact with the upper side of the mounting seat 8, and at this time the upper side of the springing frame 9 is flush with the lower side of the lower die 3;

[0020] An adsorption component capable of adsorbing the paper bowl on the upper side of the material rack 9 is arranged in the material rack 9 .

[0021] When in use, the staff places the raw material in the lower die 3 and starts the stamping structure. Driven by the stamping structure, the upper die 2 moves downward and presses the raw material to be inserted into the lower die 3. Pushed by the upper die 2, the material rack 9 moves downward until the material rack 9 is in contact with the upper side of the mounting seat 8. At this time, the bottom punching of the raw material is completed. The upper die 2 moves upward and leaves the lower die 3 under the drive of the stamping structure. The material rack 9 adsorbs the paper bowl with the punched bottom on the upper side of the material rack 9 through the adsorption component. Then, under the action of the elastic force of the spring 10, the paper bowl with the punched bottom is pushed out of the lower die 3, which is convenient for the staff to take, thereby improving the work efficiency of the staff and reducing the workload of the staff.

[0022] The cam 5 is provided with a screw threaded hole, and the screw threaded hole is provided with a fixing bolt 6, and the end of the fixing bolt 6 extending out of the screw threaded hole is provided with a fixing nut 7. When in use, the staff can realize the up and down movement of the upper mold 2 by controlling the extension and retraction of the output end of the electric push rod 4, so as to realize the punching of the far-away bottom. When replacing the upper mold, the staff can rotate the fixing nut 7 and the fixing bolt 6 to disengage the fixing bolt 6 from the screw threaded hole, so as to replace the upper mold 2. After the replacement is completed, the staff fixes the bolt 6 and inserts it into the screw threaded hole, and threadably connects the fixing nut 7 to the fixing bolt 6, so that the upper mold 2 is connected and fixed to the connecting block 5, so as to prevent the upper mold 2 from being separated from the connecting block 5 during operation, thereby ensuring the reliability of the punching device during operation.

[0023] In the present embodiment, an air cavity 901 is provided in the material rack 9, and a plurality of air holes 902 connected to the air cavity 901 are provided on the upper side of the material rack 9. The adsorption component includes a connecting tube 12 threadedly connected to the truncated cone 802 and a lifting tube 11 capable of moving up and down in the connecting tube 12. An annular protrusion is integrally formed at the lower end of the lifting tube 11 so that the lifting tube 11 cannot be separated from the connecting tube 12. The upper side of the lifting tube 11 is sealed and connected to the material rack 9, and the lifting tube 11 is connected to the air cavity 901. The lower side of the lifting tube 11 is connected to an air suction component. When in use, the air suction component evacuates the air cavity 901 through the lifting tube 11 to reduce the atmospheric pressure in the air cavity 901. At the same time, under the action of the air holes 902 and the atmospheric pressure, the paper bowl is adsorbed on the upper side of the material rack 9 to prevent the paper bowl from flying out of the bottom punching device when the material rack 9 pushes the paper bowl upward, causing waste.

[0024] In this embodiment, an air pump cavity 101 is opened at the lower end of the workbench 1, and the air suction component includes an air pump 14 and a rubber air tube 13 arranged in the air pump cavity 101. The two ends of the rubber air tube 13 are respectively sealed and connected to the air pump 14 and the lower side of the lifting tube 11. When in use, the rubber air tube 13 draws out the air in the air cavity 901 under the action of the air pump 14, and then the paper bowl is adsorbed on the material rack 9 under the action of atmospheric pressure, thereby ensuring the reliability of the bottom punching device when in use.

[0025] In the present embodiment, a closing door 15 capable of closing the air pump chamber 101 is hinged on the right side of the air pump chamber 101, and a handle 151 is welded on the right side of the closing door 15. When in use, the closing door 15 can close the air pump chamber 101 to prevent foreign matter from entering the air pump chamber 101, and prevent the air pump 14 and the rubber air tube 13 from being damaged, thereby improving the service life of the air pump 14 and the rubber air tube 13. When the air pump 14 needs maintenance, the staff can pull the handle 151 to open the closing door 15 to maintain the air pump 14, thereby improving the convenience for the staff to maintain the air pump 14.

[0026] In this embodiment, a lighting device 16 located on the workbench 1 is fixed to the right rear of the lower mold 3 by bolts. The lighting device 16 can be a common lighting device such as a desk lamp. When in use, the lighting device 16 can illuminate the upper side of the interior of the workbench 1, making it convenient for the staff to observe the situation inside the workbench 1, thereby improving the work efficiency of the staff.

[0027] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A bottom punching device for a paper bowl machine, comprising a workbench, an upper die and a lower die, wherein the upper side of the upper die is connected to a punching structure located on the workbench, characterized in that: The workbench is provided with a mounting seat with an annular groove on the upper side, the lower side of the lower die is connected with the mounting seat, the mounting seat is provided with a material spring rack inserted in the annular groove, the annular groove is provided with a plurality of springs for pushing the material spring rack to move up and reset, the upper and lower ends of the springs are respectively connected with the lower side of the material spring rack and the lower side of the annular groove, and the material spring rack can be moved down to contact with the upper side of the mounting seat; The material rack is provided with an adsorption component capable of adsorbing the paper bowl on the upper side of the material rack.

2. The bottom punching device of a paper bowl machine according to claim 1, characterized in that: The stamping structure includes an electric push rod arranged on the upper side of the workbench and a connecting block arranged at the output end of the electric push rod, a circular groove is provided on the lower side of the connecting block, the upper end of the upper mold is inserted into the circular groove, the upper mold and the connecting block are both provided with interconnected threaded holes, a fixing bolt is threadedly connected in the threaded hole, and a fixing nut is threadedly connected to one end of the fixing bolt extending out of the threaded hole.

3. The bottom punching device of a paper bowl machine according to claim 1, characterized in that: An air cavity is provided in the material rack, and a plurality of air holes connected to the air cavity are provided on the upper side of the material rack. The adsorption component includes a connecting tube arranged in the truncated cone and a lifting tube capable of moving up and down in the connecting tube. The upper side of the lifting tube is sealed and connected to the material rack, and the lifting tube is connected to the air cavity. The lower side of the lifting tube is connected to an air suction component.

4. The bottom punching device of a paper bowl machine according to claim 3, characterized in that: An air pump cavity is provided at the lower end of the workbench, and the air suction component comprises an air pump and a rubber air pipe arranged in the air pump cavity, and two ends of the rubber air pipe are respectively sealed and connected with the air pump and the lower side of the lifting pipe.

5. The bottom punching device of a paper bowl machine according to claim 4, characterized in that: The right side of the air pump chamber is rotatably connected to a closed door capable of closing the air pump chamber, and a handle is arranged on the right side of the closed door.

6. The bottom punching device of a paper bowl machine according to claim 1, characterized in that: A lighting device located on a workbench is arranged at the right rear of the lower mold.

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