Double-supporting-prevention mechanism for knife, fork and spoon automatic forming press

Abstract

The utility model discloses an anti-double-supporting mechanism for an automatic knife, fork and spoon forming press. The machine comprises a first stand and a second stand, a hot press molding mechanism is arranged on the stands, a conveying mechanism is arranged between the stands, and a feeding mechanism is arranged on one side of the first stand. The hot press forming mechanism is provided with a taking part, a moving part, a hot press and other parts, a movable hole, a penetrating pipe and the like of the taking part are matched with a pneumatic suction cup, the double-branch-preventing assembly is composed of an adsorption branch pipe, a negative-pressure air guide hose and a double-branch-preventing suction cup, the double knives, forks and spoons can be accurately separated, and unqualified hot pressing is avoided. The moving part achieves movement of the taking part through a rail and a motor, the preheating part preheats materials, and the conveying mechanism conveys finished products through a chain and limiting teeth. A triangular stock bin, a lifting motor and the like of the feeding mechanism guarantee material supply. The mechanism solves the problem of double-support adhesion, improves the product forming qualification rate, optimizes the production process, enhances the continuity and automation degree of each link, reduces the waste treatment cost, and improves the overall production efficiency and product quality.

Description

Technical Field

[0001] This utility model relates to the field of wooden knife, fork and spoon processing technology, and in particular to an anti-double support mechanism for an automatic knife, fork and spoon forming machine. Background Technology

[0002] In the production of tableware such as knives, forks, and spoons, especially when using thermoforming processes, traditional automated production equipment faces numerous challenges. With the continuous growth in market demand for tableware products and the increasing requirements for production efficiency and product quality, existing production technologies are gradually revealing some shortcomings.

[0003] In the material handling process, existing automatic feeding devices often struggle to precisely control the picking up of only a single cutlery or spoon at a time. During processing, transportation, or storage, cutlery or spoons may adhere together in pairs or even multiple pieces due to static electricity, surface stickiness, or other factors. Traditional suction cup gripping mechanisms cannot effectively identify and separate these adhered products. This results in two or more products entering the hot press mold simultaneously during the hot pressing process, leading to serious quality problems such as irregular shapes and uneven thickness in the final product, significantly reducing the product yield.

[0004] Meanwhile, the hot pressing failure caused by the adhesion of the two supports not only wastes raw materials and increases waste disposal costs, but also the frequent downtime for adjustments and waste cleaning severely impacts production efficiency, increases equipment operating time and energy consumption, and is detrimental to large-scale production and cost control. Furthermore, traditional production equipment also has shortcomings in the overall production process continuity and automation. For example, the connections between feeding, preheating, hot pressing, and conveying stages are not tight or efficient enough, and the coordination between each stage is not precise enough, easily leading to problems such as material jamming and inaccurate positioning, further restricting the improvement of production efficiency and the stability of product quality. Therefore, there is an urgent need for a new mechanism design that can effectively solve the problem of double-support adhesion during the automatic pressing process of cutlery and spoons, and improve production efficiency and product quality. Utility Model Content

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This utility model provides an anti-double support mechanism for an automatic forming machine for cutlery and spoons, including a first frame and a second frame, which are connected by a main frame.

[0006] Hot pressing forming mechanisms are installed on the No. 1 and No. 2 frames, a conveying mechanism is installed between the No. 1 and No. 2 frames, and a feeding mechanism is installed on one side of the No. 1 frame.

[0007] The hot pressing forming mechanism includes a picking part, a moving part, a hot press, a hot pressing forming tank, a lower pressing block, a telescopic cylinder, and a preheating part.

[0008] The picking unit includes a movable hole, an insert tube, a limiting sleeve, a return spring, a pneumatic suction cup, and an air guide tube. The movable hole is opened on the connecting frame, the insert tube is set inside the movable hole, the limiting sleeve is set on the insert tube, the return spring is set on the outside of the insert tube, the pneumatic suction cup is set on the insert tube and communicates with it, and the air guide tube is set on the insert tube.

[0009] The retrieval unit also includes an anti-double-support component, which includes an adsorption branch pipe fixedly welded to the main frame. A negative pressure air guide hose connected to an external air guide pipe is embedded inside the adsorption branch pipe. Multiple anti-double-support suction cups are fixedly installed on the upper part of the adsorption branch pipe, and the bottom of the anti-double-support suction cups is connected to the negative pressure air guide hose.

[0010] Preferably, the movable part is arranged on the first frame and the second frame, and there are two movable parts. The picking part is arranged on the movable part. The hot press is arranged on the first frame. The hot pressing forming tank is arranged on the first frame. The lower pressing block is arranged on the output end of the telescopic cylinder. The telescopic cylinder is arranged on the upper part of the first frame and the output end passes downward through the first frame. The preheating part is arranged on one side of the first frame.

[0011] Preferably, the moving part includes a first sliding rail, a second sliding rail, a travel motor, a moving frame, a pressing cylinder, and a connecting frame. The first sliding rail is disposed on the side surface of the first frame, the second sliding rail is disposed between the first and second frames, the travel motors are disposed within the first and second sliding rails, the moving frame is disposed on the travel motors, the pressing cylinder is disposed at the lower end of the moving frame, and the connecting frame is disposed at the output end of the pressing cylinder.

[0012] Preferably, the preheating section includes a preheating pipe, a preheating hole, and a hot-pressing pipe. The preheating pipe is mounted on the first frame, the preheating hole is opened on the upper surface of the preheating pipe, and the hot-pressing pipe is connected to the preheating pipe and is located at one end of the preheating pipe.

[0013] Preferably, the conveying mechanism includes a conveying frame, a conveying motor, a drive shaft, a drive sprocket, a drive chain, and limiting teeth. The conveying frame is positioned between a first frame and a second frame, the conveying motor is mounted on the conveying frame, the drive sprocket is mounted on the drive shaft, the drive chain is fitted onto the drive sprocket, the limiting teeth are mounted on the drive chain, and drive shafts are provided on opposite sides of the conveying frame.

[0014] Preferably, the shape and size of the limiting teeth match the shape and specifications of the wooden spoon product, and the hot-pressing forming groove and the knife, fork and spoon placement plate are also the shape and specifications of the wooden spoon product.

[0015] Preferably, the feeding mechanism includes a triangular hopper, a lifting motor, a brush, and a cutlery / spoon placement plate. The triangular hopper is located on one side of the first frame, the lifting motor is located inside the triangular hopper, the cutlery / spoon placement plate is located at the output end of the lifting motor, the upper surface of the cutlery / spoon placement plate has a spoon-shaped groove, and the brush is located at the edge of the upper surface of the triangular hopper.

[0016] Compared with the prior art, the advantages and positive effects of this utility model are that, through the unique anti-double-branch component, namely the adsorption branch pipe, the negative pressure air guiding hose and the anti-double-branch suction cup working together, it can accurately separate double-branch knives, forks and spoons that may stick to each other, ensuring that each hot pressing operation is a single product, which greatly improves the product molding qualification rate and reduces the hot pressing failure and subsequent waste disposal costs caused by double-branch adhesion. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of an anti-double-support mechanism for an automatic forming machine for cutlery and spoons provided in this embodiment;

[0019] Figure 2 This is a partial enlarged view of part A of an anti-double-support mechanism for an automatic die-forming machine for cutlery provided in this embodiment;

[0020] Figure 3 This is a partial top view of a hot press forming groove for an anti-double-support mechanism of an automatic cutlery forming machine provided in this embodiment;

[0021] The diagram shows: 1. Stand No. 1; 2. Stand No. 2; 3. Hot press; 4. Hot pressing forming tank; 5. Lower pressing block; 6. Telescopic cylinder; 7. Conveyor frame; 8. Conveyor motor; 9. Drive shaft; 10. Drive sprocket; 11. Drive chain; 12. Limiting tooth; 13. Triangular hopper; 14. Lifting motor; 15. Brush; 16. Knife, fork, and spoon placement plate; 17. Sliding rail No. 1; 18. Sliding rail No. 2; 19. Travel motor; 20. Moving frame; 21. Lower pressing cylinder; 22. Connecting frame; 23. Movable hole; 24. Insertion tube; 25. Limiting sleeve; 26. Return spring; 27. Pneumatic suction cup; 28. Air guide pipe; 29. ​​Preheating pipe; 30. Preheating hole; 31. Adsorption branch pipe; 32. Negative pressure air guide hose; 33. Anti-double-branch suction cup. Detailed Implementation

[0022] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0024] Examples, as per the appendix to the instruction manual Figure 1-3 It is understood that this solution provides an anti-double support mechanism for an automatic cutting board forming machine, including a first frame 1 and a second frame 2, which are connected by a main frame; characterized in that a hot pressing forming mechanism is provided on the first frame 1 and the second frame 2, a conveying mechanism is provided between the first frame 1 and the second frame 2, and a feeding mechanism is provided on one side of the first frame 1;

[0025] The hot pressing forming mechanism includes: a picking part, a moving part, a hot press 3, a hot pressing forming tank 4, a lower pressing block 5, a telescopic cylinder 6, and a preheating part;

[0026] The picking part includes: a movable hole 23, an insertion tube 24, a limiting sleeve 25, a return spring 26, a pneumatic suction cup 27, and an air guide tube;

[0027] The movable hole 23 is opened on the connecting frame 22, the insertion tube 24 is disposed in the movable hole 23, the limiting sleeve 25 is disposed on the insertion tube 24, the reset spring 26 is disposed on the outside of the insertion tube 24, the pneumatic suction cup 27 is disposed on the insertion tube 24 and connected to it, and the air guide tube 28 is disposed on the insertion tube 24.

[0028] The picking unit also includes an anti-double-piece assembly, which includes an adsorption branch pipe 31 fixedly welded to the main frame. A negative pressure air guide hose 32, communicating with an external air guide pipe, is embedded inside the adsorption branch pipe. Multiple anti-double-piece suction cups 33 are fixedly installed on the upper part of the adsorption branch pipe, and the bottom of each anti-double-piece suction cup 33 communicates with the negative pressure air guide hose 32. This anti-double-piece assembly accurately separates potentially sticky double-piece cutlery, ensuring that each hot-pressing operation produces a single product. This significantly improves the product forming pass rate and reduces the cost of hot-pressing failures and subsequent waste disposal caused by double-piece adhesion.

[0029] Furthermore, the moving part is disposed on the first frame 1 and the second frame 2, and there are two moving parts. The picking part is disposed on the moving part. The hot press 3 is disposed on the first frame 1. The hot pressing forming groove 4 is disposed on the first frame 1. The lower pressing block 5 is disposed on the output end of the telescopic cylinder 6. The telescopic cylinder 6 is disposed on the upper end of the first frame 1 and its output end passes downward through the first frame 1. The preheating part is disposed on one side of the first frame 1.

[0030] Furthermore, the moving part includes: a first sliding rail 17, a second sliding rail 18, a walking motor 19, a moving frame 20, a pressing cylinder 21, and a connecting frame 22;

[0031] The first sliding rail 17 is disposed on the side surface of the first frame 1, the second sliding rail 18 is disposed between the first frame 1 and the second frame 2, the walking motors 19 are disposed within the first sliding rail 17 and the second sliding rail 18, the moving frame 20 is disposed on the walking motor 19, the pressing cylinder 21 is disposed at the lower end of the moving frame 20, and the connecting frame 22 is disposed at the output end of the pressing cylinder 21.

[0032] Furthermore, the preheating section includes: a preheating pipe 29, a preheating hole 30, and a hot pressing pipe;

[0033] The preheating pipe 29 is installed on the first frame 1, the preheating hole 30 is opened on the upper surface of the preheating pipe 29, the hot pressing pipe is connected to the preheating pipe 29, and the hot pressing pipe is installed at one end of the preheating pipe 29.

[0034] Furthermore, the conveying mechanism includes: a conveyor frame 7, a conveyor motor 8, a drive shaft 9, a drive sprocket 10, a drive chain 11, and a limiting tooth 12;

[0035] Furthermore, the conveyor frame 7 is disposed between the first frame 1 and the second frame 2, the conveyor motor 8 is disposed on the conveyor frame 7, the transmission sprocket 10 is disposed on the transmission shaft 9, the transmission chain 11 is fitted on the transmission sprocket 10, the limiting tooth 12 is disposed on the transmission chain 11, and the transmission shaft 9 is disposed on both opposite sides of the conveyor frame 7.

[0036] Furthermore, the shape and size of the limiting tooth 12 are matched with the shape and specifications of the wooden spoon product, and the hot pressing forming groove 4 and the knife, fork and spoon placement plate 16 are both in the shape and specifications of the wooden spoon product.

[0037] Furthermore, the feeding mechanism includes: a triangular hopper 13, a lifting motor 14, a brush 15, and a knife, fork, and spoon placement plate 16;

[0038] The triangular hopper 13 is located on one side of the first frame 1, the lifting motor 14 is located inside the triangular hopper 13, the knife, fork and spoon placement plate 16 is located at the output end of the lifting motor 14, the upper surface of the knife, fork and spoon placement plate 16 has a spoon-shaped groove, and the brush 15 is located at the edge of the upper surface of the triangular hopper 13.

[0039] It is important to note that in the specific implementation process, firstly, orderly stacked spoon-shaped wooden products are placed in the cutlery placement plate 16. The moving frame 20 is moved within the first sliding track 17 by the walking motor 19. When the pneumatic suction cup 27 is above the spoon-shaped wooden products, it stops and is pressed down by the pressing cylinder 21, so that the pneumatic suction cup 27 adheres to the spoon-shaped wooden products. Air is drawn by the air pump connected to one end of the air guide tube 28, so that the pneumatic suction cup 27 is attached to the spoon-shaped wooden products. After it is lifted, it is moved to the position of the anti-double-branch suction cup 33. The negative pressure air pump at the end of the negative pressure air guide hose away from the anti-double-branch suction cup 33 works to generate negative pressure. At this time, the anti-double-branch suction cup 33 generates a suction force less than that of the pneumatic suction cup 27. The anti-double-branch suction cup 33 adsorbs the bottom cutlery and spoons that are stuck together. Then, the pneumatic suction cup 27 moves upward and continues to transport the upper cutlery and spoons to the preheating pipe 29. After reaching the preset position, it moves downward to make the spoon-shaped wooden product fit against the preheating hole 30. At this time, the hot air transmitted through the hot press pipe in the preheating hole 30 preheats the spoon-shaped wooden product. After preheating for 1 second, it is lifted and placed on the hot press forming tank 4. When placing the spoon-shaped wooden product, the air is stopped through the air guide pipe 28, and the spoon-shaped wooden product can be detached. At this time, the pneumatic suction cup 27 returns to the position of the triangular hopper 13 to continue the above operation. When the telescopic cylinder 6 extends and retracts downward, it drives the hot press 3 to press downward. At this time, the lower pressure block 5 is hot and presses the spoon-shaped wooden product. After the hot pressing is completed, the pneumatic suction cup 27 on the second sliding track 18 picks up the spoon-shaped wooden product and places it on the transmission chain 11 on the conveyor frame 7. It is aligned by the limiting teeth 12 to limit the formed wooden spoon. At this time, the conveyor motor 8 drives the transmission shaft 9 to rotate and transport the wooden spoon to one side of the conveyor frame 7.

[0040] This application utilizes a unique anti-double-stick component, namely the synergistic operation of the adsorption branch tube, the negative pressure air guide hose, and the anti-double-stick suction cup, to accurately separate potentially adhering double-stick cutlery, ensuring that each thermoforming operation produces a single product. This significantly improves the product forming pass rate and reduces thermoforming failures and subsequent waste disposal costs caused by double-stick adhesion.

[0041] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A double support prevention mechanism for a knife-fork-spoon automatic molding machine, characterized by, It includes a first frame (1) and a second frame (2), which are connected by a main frame; a hot pressing forming mechanism is provided on the first frame (1) and the second frame (2), a conveying mechanism is provided between the first frame (1) and the second frame (2), and a feeding mechanism is provided on one side of the first frame (1); The hot pressing forming mechanism includes: a picking part, a moving part, a hot press (3), a hot pressing forming tank (4), a lower pressing block (5), a telescopic cylinder (6), and a preheating part; The picking part includes: a movable hole (23), an insertion tube (24), a limiting sleeve (25), a return spring (26), a pneumatic suction cup (27), and an air guide tube; The movable hole (23) is opened on the connecting frame, the insertion tube (24) is set inside the movable hole (23), the limiting sleeve (25) is set on the insertion tube (24), the reset spring (26) is set on the outside of the insertion tube (24), the pneumatic suction cup (27) is set on the insertion tube (24) and connected to it, and the air guide tube (28) is set on the insertion tube (24); The picking unit also includes an anti-double-branch assembly, which includes an adsorption branch pipe (31) fixedly welded to the main frame. The adsorption branch pipe (31) is internally embedded with a negative pressure air guide hose (32) that communicates with an external air guide pipe. Multiple anti-double-branch suction cups (33) are fixedly installed on the upper part of the adsorption branch pipe (31). The bottom of the anti-double-branch suction cups (33) is connected to the negative pressure air guide hose (32).

2. The double feeding prevention mechanism for the automatic knife, fork and spoon molding machine according to claim 1, characterized in that, The moving part is disposed on the first frame (1) and the second frame (2), and there are two moving parts. The picking part is disposed on the moving part. The hot press (3) is disposed on the first frame (1). The hot pressing forming groove (4) is disposed on the first frame (1). The lower pressing block (5) is disposed at the output end of the telescopic cylinder (6). The telescopic cylinder (6) is disposed at the upper end of the first frame (1) and its output end passes downward through the first frame (1). The preheating part is disposed on one side of the first frame (1).

3. The double support prevention mechanism for the automatic knife, fork and spoon molding machine according to claim 2, characterized in that, The moving part includes: a first sliding rail (17), a second sliding rail (18), a walking motor (19), a moving frame (20), a pressing cylinder (21), and a connecting frame (22); The first sliding rail (17) is disposed on the side surface of the first platform (1), the second sliding rail (18) is disposed between the first platform (1) and the second platform (2), the walking motor (19) is disposed inside the first sliding rail (17) and the second sliding rail (18), the moving frame (20) is disposed on the walking motor (19), the pressing cylinder (21) is disposed at the lower end of the moving frame (20), and the connecting frame (22) is disposed at the output end of the pressing cylinder (21).

4. The double feeding prevention mechanism for the automatic knife, fork and spoon molding machine according to any one of claims 1 or 2, characterized in that, The preheating section includes: a preheating pipe (29), a preheating hole (30), and a hot pressing pipe; The preheating pipe (29) is installed on the first frame (1), the preheating hole (30) is opened on the upper surface of the preheating pipe (29), the hot pressing pipe is connected to the preheating pipe (29), and the hot pressing pipe is installed at one end of the preheating pipe (29).

5. The double feeding prevention mechanism for the automatic knife, fork and spoon molding machine according to claim 1, characterized in that, The conveying mechanism includes: a conveyor frame (7), a conveyor motor (8), a drive shaft (9), a drive sprocket (10), a drive chain (11), and a limiting tooth (12).

6. A double feeding prevention mechanism for an automatic cutlery molding machine according to claim 5, wherein The conveyor frame (7) is located between the first platform (1) and the second platform (2). The conveyor motor (8) is located on the conveyor frame (7). The transmission sprocket (10) is located on the transmission shaft (9). The transmission chain (11) is mounted on the transmission sprocket (10). The limiting tooth (12) is located on the transmission chain (11). The transmission shaft (9) is located on both opposite sides of the conveyor frame (7).

7. The double feeding prevention mechanism for the automatic knife, fork and spoon molding machine according to claim 5, characterized in that, The shape and size of the limiting tooth (12) match the shape and specifications of the wooden spoon product, and the hot pressing forming groove (4) and the knife, fork and spoon placement plate (16) are both the shape and specifications of the wooden spoon product.

8. The double feeding prevention mechanism for the automatic knife, fork and spoon molding machine according to claim 1, characterized in that, The feeding mechanism includes: a triangular hopper (13), a lifting motor (14), a brush (15), and a knife, fork, and spoon placement plate (16); The triangular hopper (13) is located on one side of the first frame (1), the lifting motor (14) is located inside the triangular hopper (13), the knife, fork and spoon placement plate (16) is located at the output end of the lifting motor (14), the upper surface of the knife, fork and spoon placement plate (16) has a spoon-shaped groove, and the brush (15) is located at the edge of the upper surface of the triangular hopper (13).

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