Cup mold device with pre-rolling assisting function

Abstract

The utility model relates to a cup mold device with a pre-rolling auxiliary function, which is characterized in that a cup mold body is provided with a vertical sleeve surface of a cylinder body, the cup mold body is also provided with a cylinder body upward-moving limiting block, the cylinder body upward-moving limiting block is positioned at the upper part of the vertical sleeve surface of the cylinder body, and the cylinder body upward-moving limiting block is also provided with a pre-rolling opening groove; and the pre-rolling groove is connected to the upper part of the vertical sleeving surface of the barrel body of the cup mold body. A paper cup barrel body can be limited, the barrel body is prevented from excessively moving upwards, the problems that separation demolding is difficult or abrasion is caused due to excessive extrusion of the barrel body and a cup mold body are solved, and the problems that in the paper cup barrel body machining and forming process, cup barrels move upwards, and the sizes are different and not uniform are solved; in addition, the paper cup edge rolling device further has edge rolling pretreatment (namely pre-rolling shaping), pre-rolling (edge rolling) shaping can be carried out corresponding to the corresponding position of the upper edge of the paper cup cylinder body, so that burrs at the corresponding position are eliminated or the stiffness of the position is enhanced through pre-rolling (edge rolling) shaping, assistance is provided for follow-up edge rolling, smooth and stable follow-up edge rolling operation is ensured, and the edge rolling yield is improved.

Description

Technical Field

[0001] The utility model relates to a forming device for paper cups and bowls, in particular to a cup mold device thereof. Background Art

[0002] During the forming process of paper containers such as paper cups and bowls (for the convenience of description, they can be collectively referred to as paper cups in the utility model), corresponding forming production needs to rely on the cup mold body. Usually, after the barrel of the paper cup or bowl is formed by enclosing, the barrel is transferred upward and pushed onto the cup mold body to cooperate with the subsequent processing of the cup bottom. When the barrel is pushed upward onto the cup mold body and the subsequent device mechanisms below continuously act upward on the bottom of the barrel, the position of the barrel relative to the cup mold body continuously moves upward (shifts upward), which easily causes insufficient reserved position at the bottom of the barrel and makes it impossible to smoothly carry out the cup bottom processing. It is also easy to cause differences in the upward movement amounts of different barrels, resulting in size differences in the produced paper cups and bowls. In addition, the continuous upward movement will also cause excessive extrusion between the barrel and the cup mold body, resulting in difficult demolding or barrel wear.

[0003] In addition, subsequently, the barrel runs with the cup mold body and is transferred to the curling device for curling. When there are burrs generated by die cutting or insufficient stiffness (poor supporting force and supporting strength) at the upper port (to be curled) of the barrel, especially for barrels of square, rectangular, oval cups and bowls, etc., the stiffness of the straight edges or elliptical arc edges (such as long arc edges) of the barrel is insufficient. The burrs or insufficient stiffness will cause the subsequent curling (i.e., curling the edge) to be not smooth enough, easily resulting in curling problems, poor curling, and too high a rejection rate, affecting the forming production of paper cups and bowls. Summary of the Utility Model

[0004] In view of the technical problems existing in the background art, the technical problem to be solved by the utility model is to provide a cup mold device with a pre-rolling auxiliary function that can not only limit the barrel to prevent excessive upward movement but also has pre-rolling pretreatment for subsequent smooth curling.

[0005] To solve the above technical problems, the utility model adopts the following technical solution: A cup mold device with a pre-rolling auxiliary function, including a cup mold body, the cup mold body has a vertical sleeve surface for the barrel. It is characterized in that: A barrel upward movement limiting block is also provided on the cup mold body. The barrel upward movement limiting block is arranged on the side of the cup mold body. The barrel upward movement limiting block is located above the vertical sleeve surface of the barrel. A pre-rolling groove is also provided on the barrel upward movement limiting block. The entrance of the pre-rolling groove is arranged downward. The pre-rolling groove is connected to the upper part of the vertical sleeve surface of the barrel of the cup mold body.

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

[0007] For example, the barrel upward movement limiting block is arranged on the left and right sides and / or the front and back sides of the cup mold body.

[0008] In addition, the pre-rolled mouth groove can be a horizontal groove.

[0009] Alternatively, the pre-rolled mouth groove can be an arc groove with a lower middle and higher ends. For example, the arc groove is a circular arc groove. Further optimized, the upward displacement limiting block on the barrel body is a unit block divided from an annular ring with a circular groove on the outer circle.

[0010] In addition, a relief notch is also provided on the cup mold body. The upward displacement limiting block on the barrel body is connected to the relief notch. The upward displacement limiting block on the barrel body also has a barrel body guiding groove portion. The barrel body guiding groove portion has a barrel body guiding surface, and the barrel body guiding groove portion is arranged in the relief notch.

[0011] Among them, an installation block can be provided on the cup mold body, and the upward displacement limiting block on the barrel body is connected to the cup mold body through the installation block.

[0012] Further optimized, the installation block is arranged at the top of the cup mold body, and the installation block is adjusted in the radial position on the cup mold body. The upward displacement limiting block on the barrel body is adjusted in the up and down position on the installation block.

[0013] The beneficial effect of the present utility model is that the cup mold device with a pre-rolling auxiliary function can limit the body of the paper cup, avoid excessive upward movement of the body, avoid problems such as difficult separation and demolding or wear caused by excessive extrusion between the body and the cup mold body, and prevent problems of size difference and non-uniformity caused by the upward movement of the cup barrel during the processing and forming of the paper cup body (such as bottom rolling and cup bottom bulging and pressing in subsequent processing); and it also has pre-rolling pretreatment (i.e., pre-rolling shaping), which can perform pre-rolling (mouth) shaping on the corresponding position of the upper edge of the paper cup body (such as the straight edge or elliptical arc edge of the body of square, rectangular, elliptical cup bowls, etc., which are prone to poor subsequent rolling and forming), so as to eliminate the burrs at the corresponding position or enhance the stiffness of the position through pre-rolling (mouth) shaping, provide assistance for subsequent curling, ensure the smooth and stable operation of subsequent curling, and improve the curling qualified rate. Therefore, the present utility model has substantial features and progress compared with the prior art. Description of the Drawings

[0014] The following describes the implementation manners and relevant details and working principles of the embodiments of the present utility model with reference to the drawings.

[0015] Figure 1 It is a three-dimensional structure diagram of the present utility model.

[0016] Figure 2 It is a front view of the present utility model, including the body of the paper cup.

[0017] Figure 3 It is Figure 2 The cross-sectional view taken along F-F in

[0018] Figure 4Schematic diagram of the upward displacement limiting block on the barrel body in an embodiment of the present utility model located on the annular ring.

[0019] In the figure: 1, cup mold body; 2, vertical sleeve surface of the barrel body; 3, upward displacement limiting block of the barrel body; 4, pre-rolled mouth groove; 5, arc groove; 6, unit block; 7, avoidance notch; 8, barrel body guiding inlet groove part; 9, barrel body guiding surface; 10, mounting block; 11, long hole; 12, long hole; 13, annular ring. Specific implementation manner

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model; obviously, the described embodiments are only a part of the embodiments of the implementation manner of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0021] Referring to the accompanying drawings, in the embodiment of this implementation manner, there is a cup mold device with a pre-rolling assistance function. The cup mold device includes a cup mold body 1. The cup mold body 1 has a vertical sleeve surface 2 of the barrel body. The barrel body can be pushed upward to the cup mold body 1, and the barrel body will be matched and sleeved outside the vertical sleeve surface 2 of the barrel body. This cup mold device can be installed on the turntable of a paper cup machine, and the turntable carries the mold device to stay at each station, so that the barrel body is connected to the cup bottom and the bottom is formed (such as bottom rolling).

[0022] The cup mold body 1 is further provided with a barrel body upward movement limiting block 3. The barrel body upward movement limiting block 3 is arranged on the side of the cup mold body 1 and is located above the vertical sleeve surface 2 of the barrel body. When the paper cup barrel body 14 is sleeved on the vertical sleeve surface 2 of the barrel body from bottom to top, the paper cup barrel body 14 is located below the barrel body upward movement limiting block 3. The barrel body upward movement limiting block 3 cooperates to block and limit the paper cup barrel body 14, avoiding excessive upward movement (upward shift) of the barrel body during the paper cup forming process, and avoiding problems such as difficult separation and demolding or wear caused by excessive extrusion between the barrel body and the cup mold body 1. Moreover, the barrel body upward movement limiting block 3 is also provided with a pre-rolled mouth groove 4. The entrance of the pre-rolled mouth groove 4 is arranged downward, and the pre-rolled mouth groove 4 is connected to the upper part of the vertical sleeve surface 2 of the barrel body of the cup mold body 1. When the paper cup barrel body 14 is sleeved upward on the vertical sleeve surface 2 of the barrel body of the cup mold body 1, the upper edge (corresponding to the cup mouth position) of the paper cup barrel body 14 can enter the pre-rolled mouth groove 4. The pre-rolled mouth groove 4 cooperates to pre-curl the paper cup barrel body 14, playing a role in pre-rolling and shaping. It can pre-roll and shape the edge with burrs or insufficient stiffness through the pre-rolled mouth groove 4. The barrel body upward movement limiting block 3 can pre-roll (mouth) and shape the corresponding position of the upper edge of the paper cup barrel body 14, thereby eliminating the edge wrapping at the corresponding position or enhancing the stiffness of this position through pre-rolling (mouth) shaping, providing assistance for the subsequent curling operation (including the first curling, the second curling, and even the third curling) at the curling station (corresponding to the corresponding curling device), ensuring the smooth and stable operation of the subsequent curling, and improving the curling qualified rate.

[0023] The cup mold device with a pre-rolling assistance function can limit the paper cup barrel body 14, avoid excessive upward movement of the barrel body, avoid problems such as difficult separation and demolding or wear caused by excessive extrusion between the barrel body and the cup mold body 1, and prevent problems such as size differences and non-uniformity caused by the upward movement of the cup barrel during the processing and forming of the paper cup barrel body 14 (such as curling the bottom and expanding and pressing the cup bottom in subsequent processing). And it also has pre-curling pretreatment (i.e., pre-rolling and shaping), which can pre-roll (mouth) and shape the corresponding position of the upper edge of the paper cup barrel body 14 (such as the straight edge or elliptical arc edge of the barrel body of square, rectangular, oval cup bowls, etc., which are prone to poor subsequent curling and forming), thereby eliminating the burrs at the corresponding position or enhancing the stiffness of this position through pre-rolling (mouth) shaping, providing assistance for the subsequent curling, ensuring the smooth and stable operation of the subsequent curling, and improving the curling qualified rate.

[0024] Based on the above embodiments, the following optimizations or further explanations can be made respectively.

[0025] For example, among them, the barrel body upward movement limiting block 3 is arranged on the left and right sides and / or the front and back sides of the cup mold body 1, with a simple structure and relatively more balanced limiting.

[0026] Among them, the pre-rolled mouth groove 4 can adopt a horizontal groove, which is relatively convenient to process.

[0027] Alternatively, the pre-rolled mouth groove 4 is an arc groove with a lower middle and higher ends. When pre-rolling and shaping the upper edge of the barrel body 14 of the paper cup, the two ends of the pre-rolled mouth groove 4 are not likely to damage the upper edge of the barrel body. It can be curled in advance by contacting the upper edge of the barrel body at the relatively lower middle part, avoiding scratching the upper edge of the paper cup barrel body 14 by the two ends of the pre-rolled mouth groove 4. For example, the arc groove is a circular arc groove, and the arc groove is relatively convenient to process;

[0028] Even more, the barrel body upward limit block 3 is a unit block 6 divided from an annular ring 13 with a circular groove on the outer ring. The annular ring 13 can be processed and manufactured uniformly and then divided into unit blocks 6 as the barrel body upward limit block 3. The barrel body upward limit block 3 is simpler and more convenient to process and manufacture, and the arc grooves are relatively consistent.

[0029] The cup mold body 1 is provided with an avoidance notch 7. The barrel body upward limit block 3 is connected at the avoidance notch 7. The barrel body upward limit block 3 also has a barrel body guiding groove part 8. The barrel body guiding groove part 8 is used to guide the upper edge of the paper cup barrel body 14 into the pre-rolled mouth groove 4 for pre-rolling and shaping; wherein, the barrel body guiding groove part 8 has a barrel body guiding surface 9. The barrel body guiding surface 9 cooperates with and contacts the paper cup barrel body 14 to guide the paper cup barrel body 14 into the pre-rolled mouth groove 4. The barrel body guiding groove part 8 is arranged in the avoidance notch 7, so that the barrel body guiding groove part 8 on the barrel body upward limit block 3 can avoid positions in the avoidance notch 7 of the cup mold body 1. The paper cup barrel body 14 can better fit on the cup mold body 1, and the barrel body guiding groove part 8 can also smoothly and stably guide the upper edge of the paper cup barrel body 14 into the pre-rolled mouth groove 4.

[0030] For example, the cup mold body 1 is provided with a mounting block 10. The barrel body upward limit block 3 is connected to the cup mold body 1 through the mounting block 10, which is convenient for installation, loading, unloading, replacement and maintenance. In addition, the mounting block 10 can be arranged at the top of the cup mold body 1, and the avoidance notch 7 can be located below the mounting block 10. The mounting block 10 is adjusted in the radial position on the cup mold body 1 to adjust the radial position of the barrel body upward limit block 3 on the mounting block 10. The barrel body upward limit block 3 is adjusted in the up-and-down position on the mounting block 10 to adjust the up-and-down position of the barrel body upward limit block 3 on the mounting block 10. To adjust the radial and / or up-and-down relative positions of the barrel body upward limit block 3 on the mounting block 10, the relative position of the roll mouth pre-treatment (i.e., pre-rolling and shaping) can be adjusted to ensure the smooth operation of the roll mouth pre-treatment (i.e., pre-rolling and shaping) and ensure the effect of the roll mouth pre-treatment (i.e., pre-rolling and shaping). Among them, the position adjustment setting can adopt the cooperation of long holes 11, 12, connection holes and fasteners (such as screws, etc.) for adjustment and installation.

Claims

1. A cup mold device with a pre-rolling assisting function, comprising a cup mold body (1), and the cup mold body (1) has a vertically sleeved surface of the barrel body (2), and is characterized in that: The cup mold body (1) is further provided with a cylinder body upward displacement limiting block (3). The cylinder body upward displacement limiting block (3) is arranged on the side of the cup mold body (1). The cylinder body upward displacement limiting block (3) is located above the vertical sleeve surface (2) of the cylinder body. The cylinder body upward displacement limiting block (3) is further provided with a pre-rolled mouth groove (4). The entrance of the pre-rolled mouth groove (4) is arranged downward. The pre-rolled mouth groove (4) is connected to the upper part of the vertical sleeve surface (2) of the cylinder body of the cup mold body (1).

2. The cup mold device with a pre-rolling assistance function according to claim 1, wherein: The cylinder body upward displacement limiting block (3) is arranged on the left and right sides and / or the front and back sides of the cup mold body (1).

3. The cup mold device with a pre-rolling assistance function as described in claim 1, characterized in that: The pre-rolled mouth groove (4) is a horizontal groove.

4. The cup mold device with a pre-rolling assisting function as described in claim 1, wherein: The pre-rolled mouth groove (4) is an arc groove (5) with a lower middle and higher ends.

5. The cup mold device with a pre-rolling assisting function according to claim 3, wherein: The arc groove (5) is a circular arc groove.

6. The cup mold device with a pre-rolling assistance function as claimed in claim 4, wherein: The cylinder body upward displacement limiting block (3) is a unit block (6) divided from an annular ring (13) with a circular groove on the outer ring.

7. The cup mold device with a pre-rolling assisting function as described in claim 1, wherein: The cup mold body (1) is provided with an avoidance notch (7). The cylinder body upward displacement limiting block (3) is connected to the avoidance notch (7). The cylinder body upward displacement limiting block (3) further has a cylinder body guiding groove part (8). The cylinder body guiding groove part (8) has a cylinder body guiding surface (9). The cylinder body guiding groove part (8) is arranged in the avoidance notch (7).

8. The cup mold device with a pre-rolling assisting function as claimed in claim 1 or 7, characterized in that: The cup mold body (1) is provided with a mounting block (10). The cylinder body upward displacement limiting block (3) is connected to the cup mold body (1) through the mounting block (10).

9. The cup mold device with a pre-rolling assistance function as described in claim 8, characterized in that: The mounting block (10) is arranged at the top of the cup mold body (1). The mounting block (10) is adjusted in the radial position on the cup mold body (1).

10. The cup mold device with a pre-rolling assistance function as described in claim 8, characterized in that: The cylinder body upward displacement limiting block (3) is adjusted in the up and down position on the mounting block (10).

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