Bottom punching device of paper bowl machine

By using an electric actuator to drive the lifting plate and the gas assembly, the paper bowl and mold are separated by gas, which solves the problem of the paper bowl getting stuck after punching the bottom, and achieves convenient unloading and efficient stamping effect.

CN224103625UActive Publication Date: 2026-04-10NANYANG LEWANGDA FOOD PACKAGING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-13
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

Existing paper bowl punching devices often cause paper bowls to get stuck in the mold after punching, making them difficult to separate and affecting the ease of unloading.

Method used

An electric actuator drives a lifting plate and a stamping block to perform the bottom punching operation. Gas is introduced through a gas assembly when the stamping block is lifted. The gas separates the paper bowl from the mold. The air outlet creates a negative pressure to adsorb the outer wall of the paper bowl, improving the fit and preventing jamming.

Benefits of technology

It effectively prevents paper bowls and molds from getting stuck, improves unloading convenience and stamping effect, and increases the separation efficiency of paper bowls.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224103625U_ABST
    Figure CN224103625U_ABST
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Abstract

The utility model relates to the technical field of paper bowl bottom punching, in particular to a paper bowl machine bottom punching device which comprises a carrying table, a die is fixed to the middle of the top of the carrying table, a plurality of evenly-distributed air outlet holes are formed in the inner wall of the die, a gas gathering plate of a hollow structure is fixed to the back face of the die, and the gas gathering plate is communicated with the evenly-distributed air outlet holes through air pipes. A support is fixed to the top of the carrying table, an electric push rod is fixed to the middle of the top of the support, a push rod of the electric push rod penetrates through the support and is fixedly connected with a lifting plate, a stamping block is fixed to the bottom of the lifting plate, and gas assemblies are installed on the two sides of the top of the support. In the process that the electric push rod drives the stamping block to lift, the piston can be pushed to move in the barrel, so that gas is guided into the inner cavity of the gas gathering plate, is guided into the gas outlet hole of the inner cavity of the die, is guided out along the gas outlet hole and is blown to a paper bowl, and the paper bowl and the die are separated by utilizing the gas; and the situation that materials are difficult to take due to the fact that the paper bowl and the mold are clamped is avoided.
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Description

TECHNICAL FIELD

[0001] The utility model relates to paper bowl bottom punching technical field, concretely is a paper bowl machine bottom punching device. BACKGROUND

[0002] Paper bowl bottom punching is an important link in the paper bowl production process, it relates to the forming and processing of paper bowl bottom, the main role of paper bowl bottom punching is through specific bottom punching device or structure, the bottom of paper bowl is formed and processed, makes it meet the use requirement, is favorable to the structural strength and stability of paper bowl bottom, also influences the overall appearance and quality of paper bowl.

[0003] In the prior art, corresponding bottom punching device is needed in the process of paper bowl bottom punching, after bottom punching, the paper bowl is easily stuck in the mold due to the pressure in the mold, and the paper bowl and the mold are not convenient to separate. Therefore, we provide a paper bowl machine bottom punching device. UTILITY MODEL CONTENTS

[0004] The utility model discloses a paper bowl machine bottom punching device, solve the problem in the background art.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: a paper bowl machine bottom punching device, including the support, the top middle part of support is fixed with the mold, the inner wall of mold is opened with a plurality of even distribution's gas hole, the back of mold is fixed with the gas gathering plate of hollow structure, the gas gathering plate is communicated with a plurality of even distribution's gas hole through the air pipe respectively;

[0006] The top of support is fixed with the support, and the top middle part of support is fixed with the electric push rod, the push rod of electric push rod penetrates through the support and is fixedly connected with the lifting plate, the bottom of lifting plate is fixed with the stamping block, and the top both sides of support are installed with the gas assembly, and the gas assembly is used to guide the gas into the gas gathering plate.

[0007] Through adopting above-mentioned technical scheme, paper bowl is placed in the inner chamber of mold first, then electric push rod is started to drive lifting plate to descend, so as to drive stamping block to descend into the inner chamber of mold and carry out bottom punching operation to paper bowl, after bottom punching, stamping block is lifted, and in the process of lifting, gas assembly produces gas, so that the gas enters the gas gathering plate, then the gas enters the gas hole, so that the gas blows to the paper bowl under pressure, so as to separate the paper bowl and mold by using the gas, so as to be favorable to avoiding the situation that paper bowl and mold are stuck and difficult to separate, and then be favorable to improving the convenience of unloading.

[0008] As a preferred embodiment of the utility model, the gas assembly includes a cylinder, a piston and a push rod, the cylinder is fixedly connected at the top of the support through the connecting plate, the inner cavity of the cylinder is provided with a matched piston, the bottom of the piston is fixedly provided with the push rod, the tail end of the push rod is movably penetrated through the cylinder and the support and is fixedly connected with the top of the lifting plate, and the top of the cylinder is communicated with the gas collecting plate through the conduit.

[0009] By adopting the above technical scheme, when the lifting plate is lifted, the push rod is driven to move upward, thereby driving the piston to move upward, so that the gas is guided to the conduit, so that the gas can enter the inner cavity of the gas collecting plate, and when the punch block descends to punch the bottom of the paper bowl, the piston descends, so that the gas collecting plate forms a negative pressure, so that the air outlet hole forms a negative pressure, thereby the outer wall of the paper bowl can be adsorbed, so that the paper bowl and the inner cavity of the mold are closely attached, thereby the punching effect is improved.

[0010] As a preferred embodiment of the utility model, the outer wall of the conduit is fixedly communicated with a one-way air inlet valve.

[0011] By adopting the above technical scheme, the one-way air inlet valve is arranged, so that after the air outlet hole adsorbs the paper bowl by negative pressure in the process of the piston descending to exhaust air, when the negative pressure reaches a certain value, the one-way air inlet valve automatically intakes air, thereby the deformation of the paper bowl caused by excessive negative pressure is avoided.

[0012] As a preferred embodiment of the utility model, the air outlet hole is obliquely downward.

[0013] By adopting the above technical scheme, the gas guided by the air outlet hole can move to the bottom of the inner cavity of the mold, thereby the gas is guided to the bottom of the inner cavity of the mold, so that the separation effect of the paper bowl and the bottom of the inner cavity of the mold is improved.

[0014] As a preferred embodiment of the utility model, the front side wall of the support is provided with a storage cavity, and cabinet doors are hinged on both sides of the opening of the storage cavity.

[0015] As a preferred embodiment of the utility model, the bottom of the support is fixedly provided with matched rubber pads at four corners.

[0016] Compared with the prior art, the utility model has the advantages as follows:

[0017] The paper bowl machine bottom punching device of the technical scheme can drive the piston to move in the cylinder when the punch block is lifted by the electric push rod, so that the gas is guided to the inner cavity of the gas collecting plate and then introduced into the air outlet hole in the inner cavity of the mold, and then the gas is blown to the paper bowl along the air outlet hole, so that the paper bowl and the mold are separated by the gas, and the situation that the paper bowl and the mold are stuck and it is difficult to take out the material is avoided.

[0018] By placing the paper bowl in the mold, the piston moves downward during the process of the punch head descending, so that the air outlet forms negative pressure, thereby facilitating the fit of the paper bowl in the mold and the inner wall of the mold cavity, and thereby facilitating the stamping effect of the paper bowl during stamping. BRIEF DESCRIPTION OF DRAWINGS

[0019] Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments, read in conjunction with the accompanying drawings:

[0020] Figure 1 Figure 1 is a schematic diagram of the overall structure of the paper bowl machine bottom punching device;

[0021] Figure 2 Figure 2 is a second schematic diagram of the overall structure of the paper bowl machine bottom punching device;

[0022] Figure 3 Figure 3 is a schematic diagram of the inner cavity structure of the cylinder of the paper bowl machine bottom punching device.

[0023] In the drawings:

[0024] 1, the carrier; 11, the mold; 12, the air outlet; 13, the bracket; 14, the electric push rod; 15, the lifting plate; 16, the stamping block; 17, the cabinet door;

[0025] 2, the cylinder; 21, the push rod; 22, the guide pipe; 23, the one-way air inlet valve; 24, the gas collecting plate; 25, the piston. DETAILED DESCRIPTION

[0026] Please refer to Figures 1-3 The present application provides a technical scheme: a paper bowl machine bottom punching device, comprising a carrier 1, a mold 11 is fixed at the top middle of the carrier 1, a plurality of uniformly distributed air outlets 12 are formed in the inner wall of the mold 11, a hollow gas collecting plate 24 is fixed on the back of the mold 11, and the gas collecting plate 24 is communicated with the plurality of uniformly distributed air outlets 12 through gas pipes respectively;

[0027] A bracket 13 is fixed on the top of the carrier 1, an electric push rod 14 is fixed at the top middle of the bracket 13, the push rod of the electric push rod 14 penetrates through the bracket 13 and is fixedly connected with a lifting plate 15, the bottom of the lifting plate 15 is fixed with a stamping block 16, and gas assemblies are installed on both sides of the top of the bracket 13, which are used to introduce gas into the gas collecting plate 24.

[0028] It should be understood that in actual use, first, the paper bowl is placed in the inner cavity of the mold 11, and then the electric push rod 14 is started to drive the lifting plate 15 to descend, so that the stamping block 16 can be brought into the inner cavity of the mold 11 to perform a bottom stamping operation on the paper bowl. After the bottom stamping is completed, the stamping block 16 is lifted, which will cause the gas assembly to generate gas during the lifting process, so that the gas enters the gas collecting plate 24, and then the gas enters the gas outlet hole 12, so that the gas blows towards the paper bowl under pressure, thereby separating the paper bowl from the mold 11 by using the gas, thereby facilitating the separation of the paper bowl and the mold 11 to avoid being stuck, thereby facilitating the convenience of unloading.

[0029] Further, the bottom corners of the carrier 1 are fixed with suitable rubber pads. The rubber pads are arranged to prevent the device from sliding when placed in use.

[0030] Further, the front side wall of the carrier 1 is provided with a storage cavity, and cabinet doors 17 are hingedly connected on both sides of the opening of the storage cavity. The storage cavity is arranged to facilitate tool storage.

[0031] It is worth mentioning that the gas outlet hole 12 is inclined downward, so that the gas discharged from the gas outlet hole 12 can move towards the bottom of the inner cavity of the mold 11, thereby facilitating the gas to be directed to the bottom of the inner cavity of the mold 11, thereby improving the separation effect of the paper bowl and the bottom of the inner cavity of the mold 11.

[0032] As shown in Figure 1 and 3 , the gas assembly includes a cylinder 2, a piston 25, and a push rod 21. The cylinder 2 is fixedly connected to the top of the bracket 13 through a connecting plate. The inner cavity of the cylinder 2 is provided with a suitable piston 25. The bottom of the piston 25 is fixed with a push rod 21. The tail end of the push rod 21 is movably penetrated through the cylinder 2 and the bracket 13 and is fixedly connected to the top of the lifting plate 15. The top of the cylinder 2 is communicated with the gas collecting plate 24 through a conduit 22.

[0033] It should be understood that in actual use, when the lifting plate 15 is lifted, the push rod 21 will move upward, thereby pushing the piston 25 to move upward, thereby guiding the gas to the conduit 22, so that the gas can enter the inner cavity of the gas collecting plate 24. When the stamping block 16 is lowered to stamp the bottom of the paper bowl, the piston 25 is lowered, thereby forming a negative pressure in the gas collecting plate 24, so that the gas outlet hole 12 forms a negative pressure, thereby adsorbing the outer wall of the paper bowl, so that the paper bowl and the inner cavity of the mold 11 have high adhesion, thereby improving the stamping effect.

[0034] Further, the outer wall of the conduit 22 is fixedly connected with a one-way air inlet valve 23. The one-way air inlet valve 23 is arranged to, during the process of the piston 25 descending to exhaust, after the negative pressure adsorbs the paper bowl, when the negative pressure reaches a certain value, the one-way air inlet valve 23 will automatically admit air, thereby preventing the negative pressure from being too large to cause the paper bowl to deform.

[0035] Additionally, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0036] While particular embodiments of the present application have been shown and described, it will be understood, of course, that changes can be made in embodiments without departing from the principles and spirit of the application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bottoming device for a paper bowl machine comprising a table (1), characterized in that: The top of the carrier (1) is fixed with a mold (11), the inner wall of the mold (11) is provided with a plurality of uniformly distributed air outlets (12), the back of the mold (11) is fixed with a hollow structure of the gas collecting plate (24), the gas collecting plate (24) is communicated with the plurality of uniformly distributed air outlets (12) through the air pipe respectively; The top of the carrier (1) is fixed with a support (13), the top of the support (13) is fixed with an electric push rod (14), the push rod of the electric push rod (14) penetrates the support (13) and is fixedly connected with a lifting plate (15), the bottom of the lifting plate (15) is fixed with a punching block (16), the top of the support (13) is provided with a gas assembly on both sides, and the gas assembly is used for guiding gas into the gas collecting plate (24).

2. A bottom punching device for a paper bowl machine as claimed in claim 1, characterized in that: The gas assembly comprises a cylinder (2), a piston (25) and a push rod (21), the cylinder (2) is fixedly connected through the connecting plate and the top of the support (13), the inner cavity of the cylinder (2) is provided with a matched piston (25), the bottom of the piston (25) is fixedly connected with the push rod (21), the tail end of the push rod (21) is movably penetrated through the cylinder (2) and the support (13) and is fixedly connected with the top of the lifting plate (15), and the top of the cylinder (2) is communicated with the gas collecting plate (24) through the conduit (22).

3. A bottomer for a paper bowl machine as defined in claim 2 wherein: The outer wall of the conduit (22) is fixedly connected with the one-way air inlet valve (23).

4. A bottom punching device for a paper bowl machine as defined in claim 1, wherein: The outlet (12) is inclined downward.

5. A bottom punching device for a paper bowl machine as defined in claim 1, wherein: The front side wall of the carrier (1) is provided with a receiving cavity, and the cabinet doors (17) are hinged on both sides of the opening of the receiving cavity.

6. A bottom punching device for a paper bowl machine as defined in claim 1, wherein: The bottom of the carrier (1) is fixed with a matched rubber pad at the four corners. The top of the carrier (1) is fixed with a mold (11), the inner wall of the mold (11) is provided with a plurality of uniformly distributed air outlets (12), the back of the mold (11) is fixed with a hollow structure of the gas collecting plate (24), the gas collecting plate (24) is communicated with the plurality of uniformly distributed air outlets (12) through the air pipe respectively;