Paper cup bowl forming process

Abstract

The present application relates to a paper cup bowl forming process, paper sheet is input in a paper sheet input station, the paper sheet to be connected is heated and / or glued during the input of the paper sheet; the paper sheet is input to a folding forming station, the paper sheet is folded and formed into a cup body of a paper cup bowl in the folding forming station; the cup body is transferred to a cup bowl mouth oil dipping station, the cup body is dipped in oil at the cup bowl mouth in the cup bowl mouth oil dipping station; the cup body is transferred to a cup bowl mouth preheating station after being dipped in oil, the cup body is preheated at the cup bowl mouth in the cup bowl mouth preheating station; the cup body is transferred to a cup bowl mouth rolling station after being preheated, the cup body is rolled at the cup bowl mouth, and the forming is completed. The linear arrangement of the stations and the combination of the paper sheet input station, the folding forming station, the cup bowl mouth oil dipping station, the cup bowl mouth preheating station and the cup bowl mouth rolling station are adopted, the station combination structure is optimized, the folding forming is only needed in a single station, the structure layout is simplified, the relative stability can be realized along the linear operation, and the complex connection mode of the rotating stations is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to a forming station of paper cups or paper bowls. BACKGROUND

[0002] The forming of paper cups or paper bowls (collectively referred to as cups or bowls for ease of presentation) all need the intervention of a rotating disc, and the barrel of the cup or bowl is rotated to each station by the rotating disc to stay for corresponding forming. The structure, station and cooperation of the rotating disc are relatively complex due to the large number of corresponding stations of the rotating disc and the rotating mode of the rotating disc. In addition, the cup bottom needs to be additionally made to be connected with the barrel to form a cup body. In some forming processes, multiple rotating discs need to be cooperated and connected (the barrel is transferred and formed on multiple rotating discs, which makes the whole processing process more complex and less stable.

[0003] In addition, the problem of the rolled mouth (i.e. the edge) of the cup also exists. After the barrel is made, the whole barrel usually has a taper (i.e. a cone shape) and is opened at a certain angle. The rolling of the mouth needs to be matched with the taper, which is difficult and has a poor effect, is easy to deform and wrinkle, and requires a higher requirement for the paper material. SUMMARY

[0004] In view of the technical problems in the background art, the technical problems solved by the present application aim to provide a paper cup or bowl forming process with a relatively simple structure layout and relatively stable operation.

[0005] To solve the above technical problems, the present application adopts the following technical solution: a paper cup or bowl forming process, comprising a straight-line arranged paper sheet feeding station, a folding forming station, a cup or bowl mouth oil dipping station, a cup or bowl mouth preheating station and a cup or bowl mouth rolling station, characterized in that: first, the paper sheet is input at the paper sheet feeding station, and the paper sheet is heated and / or glued at the to-be-adhered part during the input process; second, the paper sheet is input to the folding forming station, and the paper sheet is folded and formed into a cup body of a paper cup or bowl at the folding forming station; third, the cup body is transferred to the cup or bowl mouth oil dipping station, and the cup body is dipped at the cup or bowl mouth oil dipping station; fourth, the cup body is transferred to the cup or bowl mouth preheating station after being dipped, and the cup body is preheated at the cup or bowl mouth preheating station; fifth, the cup body is transferred to the cup or bowl mouth rolling station after being preheated, and the cup body is rolled at the cup or bowl mouth rolling station, and the forming of the paper cup or bowl is completed.

[0006] The following optimizations or supplementary explanations can be made on the above technical solutions respectively.

[0007] In the first step, the to-be-adhered part of the front surface of the paper sheet is heated or glued.

[0008] In the second step, the left and right parts of the paper sheet are folded upwards in sequence with the front and rear parts of the paper sheet, the left and right parts of the paper sheet are folded upwards synchronously, and the front and rear parts of the paper sheet are folded upwards synchronously.

[0009] In the second step, the front and back sides of the left and right parts of the paper sheet are bent inward or the left and right sides of the front and back parts of the paper sheet are bent inward.

[0010] In the fourth step, the cup bowl mouth preheating station also pre-rolls the cup bowl mouth of the cup body.

[0011] In the fourth step, preheating by hot air and / or steam is adopted.

[0012] In the third step, the inner wall side of the cup bowl mouth of the cup body is dipped in oil; in the fourth step, the outer wall side of the cup bowl mouth of the cup body is preheated.

[0013] In the second step, the cup body after being folded and formed is vertically arranged at the to-be-rolled mouth part, the lower side of the to-be-rolled mouth part is the main body part of the cup body, and the main body part of the cup body is arranged in a taper and / or slope.

[0014] The paper sheet feeding station, the folding and forming station, the cup bowl mouth oil dipping station, the cup bowl mouth preheating station and the cup bowl mouth rolling station are arranged in a straight line in sequence.

[0015] The beneficial effects of the present application are that, in the paper cup bowl forming process, the straight-line-arranged station layout and the station combination mode of the paper sheet feeding station, the folding and forming station, the cup bowl mouth oil dipping station, the cup bowl mouth preheating station and the cup bowl mouth rolling station are adopted, the station combination structure is optimized, and only the folding and forming mode is required at the folding and forming station (single station) to form the paper cup bowl, the structure layout is simplified, the relative stability can be achieved in the straight-line mode, and the complex rotating station connection mode is avoided. Compared with the prior art, the present application has outstanding substantial features and significant progress. BRIEF DESCRIPTION OF DRAWINGS

[0016] The relevant details and working principles of the embodiments of the present application are described below in combination with the drawings.

[0017] Figure 1 The present application is a process schematic diagram.

[0018] Figure 2 The present application is a process corresponding to the side view of the forming equipment.

[0019] In the drawings: 28, cup body folding and forming station; 29, cup bowl mouth oil dipping station; 30, cup bowl mouth preheating station; 31, cup bowl mouth rolling station; 32, collection station; 33, paper sheet feeding station; 200, translational robot. DETAILED DESCRIPTION

[0020] With reference to the drawings, the paper cup bowl forming process in the embodiments of the present embodiment will be described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present embodiment, but not all the embodiments. Based on the embodiments of the present embodiment, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present embodiment.

[0021] Referring to the drawings, the paper cup bowl forming process in the embodiments of the present embodiment will be described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present embodiment, but not all the embodiments. Based on the embodiments of the present embodiment, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present embodiment.

[0022] In the first step, the paper sheet is input at the paper sheet inputting station, and the paper sheet is heated and / or glued at the to-be-stuck part during the paper sheet inputting process (i.e., pretreatment). The to-be-stuck part is heated and / or glued so as to be stuck during subsequent folding and forming (generally, the folding and overlapping parts are stuck). For example, the film layer at the to-be-stuck part of the paper sheet is heated by a heating component so as to be stuck during subsequent forming, and / or the to-be-sticked part of the paper sheet is heated by a gluing component (such as point gluing) so as to be stuck during subsequent folding and forming.

[0023] In the second step, the paper sheet (pretreated in the first step) is input to the folding and forming station, and the paper sheet is folded and formed into a cup body of a paper cup bowl at the folding and forming station. For example, the paper sheet is folded and formed into a cup body of a paper cup bowl (with a cup bottom) by cooperation of a forming upper die and a forming lower die. The paper sheet is pretreated, and the to-be-stuck part is smoothly stuck to maintain the folding and forming state (i.e., the cup body of the folded and formed paper cup bowl).

[0024] In the third step, the cup body is transferred to the cup bowl mouth oiling station, and the cup bowl mouth of the cup body is oiled at the cup bowl mouth oiling station. After being oiled, the cup bowl mouth is smoothly rolled (rolled edge) in the subsequent step.

[0025] In the fourth step, the cup body is transferred to the cup bowl mouth preheating station after being oiled, and the cup bowl mouth of the cup body is preheated at the cup bowl mouth preheating station. The preheated cup bowl mouth is more smoothly rolled in the subsequent step.

[0026] In the fifth step, the cup body is transferred to the cup bowl mouth rolling station after being preheated, and the cup bowl mouth of the cup body is rolled at the cup bowl mouth rolling station. The paper cup bowl is formed.

[0027] In the paper cup bowl forming process, the work station layout is arranged in a straight line, and the work station combination mode of the paper sheet feeding station, the folding forming station, the cup bowl mouth oil dipping station, the cup bowl mouth preheating station and the cup bowl mouth rolling station is adopted, the work station combination structure is optimized, and the paper cup bowl is formed by folding forming at the folding forming station (single work station) only, the structure layout is simplified, the relative stability can be achieved by running in a straight line, and the complex work station connection mode of the rotating type is avoided.

[0028] The following optimization or supplementary description can be made on the above technical solutions respectively.

[0029] For example, in the first step, the to-be-stuck part of the front surface of the paper sheet is heated or glued; the to-be-stuck part is stuck and fixed by using the heated film layer or glue after the paper sheet is folded, and one of heating or gluing is selected for the front surface of the paper sheet, which is more convenient.

[0030] For example, in the second step, the left and right parts of the paper sheet are folded upward in sequence with the front and rear parts of the paper sheet, that is, one of the left and right parts and the front and rear parts of the paper sheet is folded upward first, and then the other is folded upward, the left and right parts of the paper sheet are folded upward synchronously, and the front and rear parts of the paper sheet are folded upward synchronously.

[0031] For another example, in the second step, the front and rear side edges of the left and right parts of the paper sheet are bent inward or the left and right side edges of the front and rear parts of the paper sheet are bent inward. It is convenient for connection and transition, and even for forming a conical curved surface, and after being bent inward, the part of the paper sheet folded upward later is more easily folded and overlapped with the part of the paper sheet folded upward earlier.

[0032] In addition, in the fourth step, the cup bowl mouth preheating station also pre-rolls the cup bowl mouth of the cup body, so that the subsequent rolling is more smooth, and a pre-rolling groove can be arranged on the upper mold of the preheating upper mold for pre-rolling.

[0033] In the fourth step, hot air and / or steam is used for preheating, the steam can not only preheat the cup bowl mouth but also moisten the paper sheet, so that the rolling is more smooth.

[0034] In addition, in the third step, the cup bowl mouth inner wall side of the cup body is dipped with oil; and in the fourth step, the cup bowl mouth outer wall side of the cup body is preheated, the dipping and preheating efficiency is relatively higher, and the effect is also better. The dipping and preheating can be performed by using the upper and lower mold cooperation mode.

[0035] It can also be optimized that in the second step, the to-be-rolled part of the cup body after the paper sheet is folded and formed is arranged in a vertical direction, the lower side of the to-be-rolled part is the main body part of the cup body, and the main body part of the cup body is arranged in a taper and / or slope. The to-be-rolled part is arranged in a vertical direction, so that the paper sheet of the to-be-rolled part is in a vertical state (almost in an upright state, which can be regarded as a vertical state, and has no slope and taper), the paper sheet of the to-be-rolled part in the vertical state is convenient for later rolling, the rolling difficulty is relatively reduced, the rolling effect is relatively good, deformation and wrinkles are not easy to occur, and the requirement for the paper sheet material is relatively low.

[0036] The paper sheet feeding station, the folding forming station, the cup and bowl mouth oil dipping station, the cup and bowl mouth preheating station and the cup and bowl mouth rolling station are arranged in a straight line in sequence. The paper sheet in the paper sheet feeding station can be pushed to the folding forming station by pushing. The folding forming station, the cup and bowl mouth oil dipping station, the cup and bowl mouth preheating station and the cup and bowl mouth rolling station can be used to translate and transfer the cup by clamping the cup with the translation mechanical hand (including the left clamping part and the right clamping part, which can be separated and closed and can be translated).

Claims

1. A paper cup bowl forming process, comprising a paper sheet feeding station, a folding forming station, a cup bowl rim oil dipping station, a cup bowl rim preheating station and a cup bowl rim rolling station arranged in a straight line, characterized in that: in the first step, the paper sheet is fed into the paper sheet feeding station, and the paper sheet is heated and / or glued at the to-be-glued part during the feeding; in the second step, the paper sheet is fed into the folding forming station, and the paper sheet is folded and formed into a cup body of a paper cup bowl in the folding forming station; in the third step, the cup body is transferred to the cup bowl rim oil dipping station, and the cup body is dipped with oil at the cup bowl rim in the cup bowl rim oil dipping station; in the fourth step, the cup body after being dipped with oil is transferred to the cup bowl rim preheating station, and the cup bowl rim of the cup body is preheated in the cup bowl rim preheating station; in the fifth step, the cup body after being preheated is transferred to the cup bowl rim rolling station, and the cup bowl rim of the cup body is rolled in the cup bowl rim rolling station, and the paper cup bowl forming is completed. In the first step, the to-be-glued part of the front surface of the paper sheet is heated or glued. In the second step, the left and right parts of the paper sheet are folded upward successively relative to the front and back parts of the paper sheet, the left and right parts of the paper sheet are folded upward synchronously, and the front and back parts of the paper sheet are folded upward synchronously. In the second step, the front and back side edges of the left and right parts of the paper sheet are bent inward, or the left and right side edges of the front and back parts of the paper sheet are bent inward. In the fourth step, the cup bowl rim preheating station also pre-rolls the cup bowl rim of the cup body. In the fourth step, the preheating is performed by using hot air and / or steam.

2. The paper cup bowl forming process of claim 1, wherein: In the third step, the cup bowl rim of the cup body is dipped with oil on the inner wall side; in the fourth step, the cup bowl rim of the cup body is preheated on the outer wall side.

3. The paper cup bowl forming process of claim 1 wherein: In the second step, the to-be-rolled part of the cup body after being folded and formed is arranged in a vertical direction, the lower side of the to-be-rolled part is a main body part of the cup body, and the main body part of the cup body is arranged in a taper and / or slope.

4. The paper cup bowl forming process of claim 3, wherein: The paper sheet feeding station, the folding forming station, the cup bowl rim oil dipping station, the cup bowl rim preheating station and the cup bowl rim rolling station are arranged in a straight line in sequence.

5. The paper cup bowl forming process of claim 1 wherein: ​ 6. The paper cup bowl forming process of claim 1 wherein: ​ 7. The paper cup bowl forming process of claim 1 wherein: ​ 8. The paper cup bowl forming process of claim 1 wherein: ​ 9. The paper cup bowl forming process of claim 1 wherein: ​

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