Self-heating type forming device for paper bowl production and processing

Abstract

This utility model relates to the field of paper bowl production and processing technology, and in particular to a forming device for self-heating paper bowl production and processing. It includes a worktable, a pressing component, and a clamping component. An L-shaped support frame is provided on the top of the worktable, and a hydraulic rod is provided on the top of the L-shaped support frame. The pressing component includes a rectangular plate connected to the output end of the hydraulic rod, and four first sliding holes are provided on the rectangular plate. In this utility model, during demolding, the upper mold is moved upwards, removing it from the paper bowl. The elastic force generated by the second spring applies pressure to the clamping block, causing the clamping block to move continuously downwards, applying a downward pushing force to the paper bowl. This prevents the paper bowl from adhering to the upper mold and moving with it. Then, an electric pusher pushes the push plate to eject it, solving the problem that after high-pressure pressing, the paper bowl easily adheres to the upper mold or gets stuck in the lower mold, making it difficult to remove.

Description

Technical Field

[0001] This utility model relates to the field of paper bowl production and processing technology, specifically a forming device for self-heating paper bowl production and processing. Background Technology

[0002] Self-heating paper bowls, as convenient food packaging containers, are widely used in the fast food and convenience food industries due to their built-in heating elements. In the production and processing of paper bowls, forming is one of the key processes, directly affecting the bowl's sealing performance, structural stability, and appearance quality. Currently, common paper bowl forming devices typically use upper and lower molds for pressing and forming, and the molds are closed and opened using hydraulic or pneumatic drives.

[0003] However, the formed paper bowls are tightly fitted to the mold cavity, especially after high-pressure pressing, and are easily adsorbed into the upper mold or stuck in the lower mold, making them difficult to remove. Therefore, a self-heating forming device for paper bowl production and processing is needed to improve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a forming device for the production and processing of self-heating paper bowls, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A forming device for producing self-heating paper bowls includes a worktable, a pressing component, and a clamping component. The worktable has an L-shaped support frame on top, and a hydraulic rod on top of the L-shaped support frame. The pressing component includes a rectangular plate connected to the output end of the hydraulic rod. Four first sliding holes are formed on the rectangular plate, and a first stepped rod fits inside each first sliding hole. An upper mold is located at the bottom of each first stepped rod, and a first spring is sleeved on the outside of each first stepped rod. One end of the first spring is connected to the top of the upper mold, and the other end is connected to the bottom of the rectangular plate. A cutting blade is located on the outside of the upper mold. The clamping component includes a U-shaped frame, which is positioned on one side of the top of the upper mold. Through holes are formed on both sides of the top of the upper mold, and the U-shaped frame is located above the through holes. A second sliding hole is formed at the top of the U-shaped frame, and a second stepped rod fits inside the second sliding hole. A clamping block is located at the bottom of the second stepped rod through the through hole, and a second spring is sleeved on the outside of the second stepped rod.

[0006] As a preferred embodiment of this utility model, the bottom of the rectangular plate is provided with four circular sleeves, the circular sleeves are located below the first sliding hole, and the upper part of the first spring is located inside the circular sleeves. The circular sleeves can prevent the spring from being over-compressed.

[0007] As a preferred embodiment of this utility model, the output end of the hydraulic rod is provided with a mounting plate, and a rectangular plate is bolted to the mounting plate.

[0008] As a preferred embodiment of this utility model, the shape and structure of the through hole are consistent with the shape and structure of the clamping block.

[0009] As a preferred embodiment of this utility model, one end of the second spring is connected to the top of the inner side of the U-shaped frame, and the other end is connected to the top of the clamping block.

[0010] As a preferred embodiment of this utility model, the top of the workbench is provided with a lower mold, the lower mold defines the shape of the paper bowl, the bottom of the lower mold is provided with a placement groove, and the top of the workbench is provided with an installation groove, which corresponds to the placement groove.

[0011] As a preferred embodiment of this utility model, an electric push rod is provided inside the mounting groove, and a push plate is provided at the output end of the electric push rod. The electric push rod provides power to the push plate, and the push plate is used to push out the formed paper bowl for easy removal. The push plate is located inside the placement groove.

[0012] As a preferred embodiment of this utility model, the upper mold and the lower mold correspond to each other, and the inner side of the cutting blade corresponds to the outer side of the lower mold.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. In this utility model, during demolding, the upper mold is moved upward to remove it from the paper bowl. The elastic force generated by the second spring applies pressure to the clamping block, causing the clamping block to move downward continuously and apply a downward pushing force to the paper bowl. This prevents the paper bowl from adhering to the upper mold and moving with it. Then, the push plate is pushed out by the electric push rod, which solves the problem that the paper bowl is easily adhering to the upper mold or stuck in the lower mold after high-pressure pressing and is difficult to remove.

[0014] 2. In this utility model, by directly integrating the cutting blade onto the outside of the upper mold, the hydraulic rod can sequentially complete all processes of pressing, deep forming, and precise edge cutting in a single downward movement, eliminating the need for a separate edge cutting station and equipment, simplifying the production process, shortening the processing cycle of a single product, and ensuring the neatness and consistency of the bowl edge cutting, which is beneficial for subsequent flanging. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the molding device structure of this utility model; Figure 2 This is a schematic diagram of the downward pressing component structure of this utility model; Figure 3 This is a schematic diagram of the internal structure of the circular sleeve of this utility model; Figure 4 This is a schematic diagram of the pressing component structure of this utility model; Figure 5 This is a schematic diagram of the internal structure of the workbench of this utility model.

[0016] In the diagram: 1. Workbench; 101. Mounting slot; 102. Electric actuator; 103. Push plate; 2. Lower mold; 201. Placement slot; 3. L-shaped support frame; 4. Hydraulic rod; 401. Mounting plate; 5. Pressing assembly; 501. Rectangular plate; 502. First sliding hole; 503. Circular sleeve; 504. First step rod; 505. First spring; 506. Upper mold; 507. Through hole; 6. Clamping assembly; 601. U-shaped frame; 602. Second sliding hole; 603. Second step rod; 604. Second spring; 605. Clamping block; 7. Cutting blade. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0018] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, and several embodiments of the utility model will be provided. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and complete.

[0019] For examples, please refer to Figure 1-5 This utility model provides a technical solution: A forming device for producing self-heating paper bowls includes a worktable 1, a pressing component 5, and a clamping component 6. The worktable 1 serves as the base of the entire device, supporting the lower mold 2 and all other components to ensure operational stability. An L-shaped support frame 3 is provided on the top of the worktable 1, providing height and span support and suspending a hydraulic rod 4 directly above the worktable 1, forming a stable "gate" structure that provides a fulcrum for vertical movement. The hydraulic rod 4, located on top of the L-shaped support frame 3, serves as the core power source, providing strong, stable, and controllable downward pressure and upward force. The pressing component 5 includes a rectangular plate 501 connected to the output end of the hydraulic rod 4. The rectangular plate 501 is a transition structure connecting the hydraulic power to the upper mold 506 of the actuator. Simultaneously, it provides guidance for the first step rod 504. Four first sliding holes 502 are provided on the rectangular plate 501. The first step rod 504 is fitted inside the first sliding hole 502. The precise fit between the first sliding hole 502 and the first step rod 504 ensures that the upper mold 506 can only perform strictly vertical movements, preventing it from deflecting or getting stuck. The upper mold 506 is provided at the bottom end of the first step rod 504. The first spring 505 is sleeved on the outside of the first step rod 504. One end of the first spring 505 is connected to the top of the upper mold 506, and the other end is connected to the bottom of the rectangular plate 501. The first spring 505 acts as an elastic buffer and pressure transmission element. When the upper mold 506 contacts the paper bowl blank and begins to form, the force of the hydraulic rod 4 is first transmitted by compressing the first spring 505. This process absorbs the instantaneous impact force of the hydraulic rod 4, making the molding process smooth and gentle, protecting the mold and the product. The upper mold 506 is equipped with a cutting blade 7 on its outside. As the upper mold 506 descends, after the paper bowl is basically formed, the cutting blade 7 also reaches the position to cooperate with the outside of the lower mold 2. Using the pressure of the hydraulic rod 4, the excess edge material is instantly cut off. The clamping component 6 includes a U-shaped frame 601, which is set on one side of the top of the upper mold 506. Through holes 507 are opened on both sides of the top of the upper mold 506. The U-shaped frame 601 is located above the through holes 507 and is fixed to the upper mold 506, moving synchronously with it. The through hole 507 provides a precise moving channel for the clamping block 605. The top of the U-shaped frame 601 is provided with a second sliding hole 602. The second sliding hole 602 is fitted with a second stepped rod 603. The second sliding hole 602 and the second stepped rod 603 play a guiding and limiting role, ensuring that the clamping block 605 is pressed down vertically and the stroke is controllable. The bottom end of the second stepped rod 603 passes through the through hole 507 and is provided with the clamping block 605. The clamping block 605 firmly presses the future bowl-shaped flange area of ​​the blank onto the lower mold 2. The outside of the second stepped rod 603 is fitted with a second spring 604, which provides continuous downward pressure to the clamping block 605.

[0020] In this embodiment, the bottom of the rectangular plate 501 is provided with four circular sleeves 503. The circular sleeves 503 are located below the first sliding hole 502. The upper part of the first spring 505 is located inside the circular sleeves 503. The circular sleeves 503 can prevent the spring from being over-compressed.

[0021] In this embodiment, the output end of the hydraulic rod 4 is provided with a mounting plate 401, and a rectangular plate 501 is bolted to the mounting plate 401.

[0022] In this embodiment, the shape and structure of the through hole 507 are consistent with the shape and structure of the clamping block 605.

[0023] In this embodiment, one end of the second spring 604 is connected to the top of the inner side of the U-shaped frame 601, and the other end is connected to the top of the clamping block 605.

[0024] In this embodiment, the top of the workbench 1 is provided with a lower mold 2, which defines the shape of the paper bowl. The bottom of the lower mold 2 is provided with a placement groove 201, and the top of the workbench 1 is provided with an installation groove 101, which corresponds to the placement groove 201.

[0025] In this embodiment, an electric push rod 102 is provided inside the mounting groove 101, and a push plate 103 is provided at the output end of the electric push rod 102. The electric push rod 102 provides power to the push plate 103, and the push plate 103 is used to push out the formed paper bowl for easy picking. The push plate 103 is located inside the placement groove 201.

[0026] In this embodiment, the upper mold 506 corresponds to the lower mold 2, and the inner side of the cutting blade 7 corresponds to the outer side of the lower mold 2.

[0027] The working process of this utility model is as follows: When the self-heating paper bowl production and processing forming device and structure designed in this solution are working or running, the blank is first placed on the lower mold 2, and then the piston rod of the hydraulic rod 4 begins to extend downward, driving the lower pressing component 5 to descend. The upper mold 506 then contacts the middle of the blank. The downward force provided by the hydraulic rod 4 begins to overcome the elastic force of the first spring 505, causing the first spring 505 to be compressed. The compression process absorbs the rigid impact of the hydraulic rod 4, so that the pressing force of the upper mold 506 on the blank is stable and gradually increases. Then, under the joint action of the upper mold 506 and the cavity of the lower mold 2, the paper bowl blank is pressed into the preset bowl shape.

[0028] Simultaneously, the clamping component 6 moves downward in sync with the pressing of the upper mold 506. After the clamping block 605 contacts the blank, as the upper mold 506 moves downward, it compresses the second spring 604. Subsequently, the elastic force generated by the second spring 604 is applied to the clamping block 605 to clamp the edge of the blank.

[0029] As the upper mold 506 fully enters the cavity of the lower mold 2, the cutting blade 7 fixed to the outer wall of the upper mold 506 also moves downwards. The cutting edge of the cutting blade 7 precisely matches the outer edge of the upper end of the lower mold 2, and like a stamping die, it neatly cuts off the excess material edges around the formed paper bowl.

[0030] After the forming and trimming actions are completed, the piston rod of the hydraulic rod 4 begins to rise, driving the rectangular plate 501, the upper mold 506, the cutting blade 7, and the clamping assembly 6 to move upward and away from the area of ​​the lower mold 2. The elastic force generated by the second spring 604 applies pressure to the clamping block 605, causing the clamping block 605 to move downward continuously, applying a downward pushing force to the paper bowl. This prevents the paper bowl from adhering to the upper mold 506 and moving with it. Then, the piston rod of the electric push rod 102 pushes upward, pushing the push plate 103 to move upward. The push plate 103 smoothly and undamagedly pushes the finished paper bowl, which has been formed and trimmed, out of the cavity of the lower mold 2. After the worker or robot takes away the finished paper bowl, the electric push rod 102 resets, and the push plate 103 descends back into the placement slot 201.

[0031] At this point, the new paper bowl blank can be placed on the lower mold 2, and the device is ready to start the next work cycle.

[0032] The electric actuator 102 and hydraulic rod 4 used in this utility model are both existing known electrical devices, and both can be purchased and used directly on the market. Their structure, circuit and control principle are all existing known technologies. Therefore, the structure, circuit and control principle of the electric actuator 102 and hydraulic rod 4 will not be described in detail here.

[0033] All standard parts used in this application can be purchased from the market. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art and are also general components, which are common knowledge in this field.

[0034] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A forming device for producing and processing self-heating paper bowls, comprising a workbench (1), characterized in that: The workbench (1) is provided with an L-shaped support frame (3) on top, and a hydraulic rod (4) is provided on top of the L-shaped support frame (3). It also includes a pressing assembly (5), which includes a rectangular plate (501) connected to the output end of the hydraulic rod (4); The rectangular plate (501) has four first sliding holes (502), and a first step rod (504) is fitted inside the first sliding hole (502). The bottom end of the first step rod (504) is provided with an upper mold (506), and a first spring (505) is sleeved on the outside of the first step rod (504). One end of the first spring (505) is connected to the top of the upper mold (506), and the other end is connected to the bottom of the rectangular plate (501). The upper mold (506) is provided with a cutting blade (7) on its exterior. It also includes a clamping assembly (6), which includes a U-shaped frame (601). The U-shaped frame (601) is disposed on one side of the top of the upper mold (506). Through holes (507) are respectively opened on both sides of the top of the upper mold (506). The U-shaped frame (601) is located above the through holes (507). The top of the U-shaped frame (601) is provided with a second sliding hole (602), and a second step rod (603) is fitted inside the second sliding hole (602). A pressing block (605) is provided in the bottom through hole (507) of the second step rod (603), and a second spring (604) is sleeved on the outside of the second step rod (603).

2. The forming device for self-heating paper bowl production and processing according to claim 1, characterized in that: The rectangular plate (501) has four circular sleeves (503) at its bottom. The circular sleeves (503) are located below the first sliding hole (502), and the upper part of the first spring (505) is located inside the circular sleeves (503).

3. The forming device for self-heating paper bowl production and processing according to claim 1, characterized in that: The output end of the hydraulic rod (4) is provided with a mounting plate (401), and the rectangular plate (501) is bolted to the mounting plate (401).

4. A self-heating type forming device for processing paper bowl production according to claim 1, characterized in that: The shape and structure of the through hole (507) are consistent with the shape and structure of the clamping block (605).

5. A self-heating type forming device for paper bowl production and processing according to claim 1, characterized in that: One end of the second spring (604) is connected to the top of the inner side of the U-shaped frame (601), and the other end is connected to the top of the clamping block (605).

6. A self-heating forming device for paper bowl production and processing according to claim 1, characterized in that: The workbench (1) has a lower mold (2) on its top, and a placement groove (201) is provided at the bottom of the lower mold (2). The workbench (1) has an installation groove (101) on its top, and the installation groove (101) corresponds to the placement groove (201).

7. A self-heating forming device for paper bowl production and processing according to claim 6, characterized in that: The mounting slot (101) is equipped with an electric push rod (102), and the output end of the electric push rod (102) is equipped with a push plate (103), which is located inside the placement slot (201).

8. A self-heating type forming device for processing a paper bowl according to claim 6, characterized in that: The upper mold (506) corresponds to the lower mold (2), and the inner side of the cutting blade (7) corresponds to the outer side of the lower mold (2).

Images