Trimming die for cake support bottom production

Abstract

The utility model relates to a trimming die for cake support bottom production. The die comprises an upper die assembly and a lower die assembly, the upper die assembly comprises an upper die plate, a first base plate, a cutter positioning frame and an annular cutter, an inner pressing plate is movably arranged in an inner area defined by the annular cutter, a first elastic part is connected between the inner pressing plate and the upper die plate, and a second base plate is further attached to the bottom face of the inner pressing plate; an outer pressing plate is movably arranged on the outer side of the annular cutter, and a second elastic piece is connected between the outer pressing plate and the cutter positioning frame. The lower die assembly comprises a lower die plate and a male die arranged on the upper side of the lower die plate, a lower concave part is arranged in the middle of the upper surface of the male die, and a third base plate is attached to the upper surface of the male die. The edge cutting device has the functions of bonding and edge cutting of the bottom paper, the foam board and the surface paper at the same time.

Description

Technical Field

[0001] The utility model relates to a paper trimming die, in particular to a trimming die for producing cake bottoms Background Art

[0002] A cake bottom is a base for supporting a cake body. The structure of the cake bottom includes a bottom paper, a foam board and a surface paper. The size of the foam board is slightly smaller than that of the bottom paper. The foam board is located on the upper side of the bottom paper. The surface paper completely wraps the foam board and is fixedly adhered to the edge of the bottom paper, so that the shape of the cake bottom is in an inverted dish shape. During the production process of the cake bottom, the bottom paper, the foam board and the surface paper need to be stacked in sequence and fixedly adhered to each other through glue. In this process, it is impossible to ensure that the edges of the bottom paper and the surface paper are completely aligned. Therefore, the existing production process adopts the processes of adhesion and trimming (cutting) to produce a bottom with flush edges, that is, the original sizes of the bottom paper and the surface paper are slightly larger than the size of the finished product, and trimming is carried out after mutual adhesion. The adhesion process requires corresponding adhesion equipment, and the trimming process requires corresponding trimming equipment. If a device that can perform adhesion and trimming simultaneously can be developed, then the cake bottom production industry can not only save the equipment procurement cost, but also simplify the production process and improve the production capacity Content of the Utility Model

[0003] The utility model provides a trimming die for producing cake bottoms, which solves the problem in the prior art that the production processes of adhesion and trimming of cake bottoms are not integrated, resulting in the inability to improve the production capacity

[0004] The above technical problem of the utility model is mainly solved by the following technical solution: a trimming die for producing cake bottoms, including an upper die assembly and a lower die assembly that are vertically opposite to each other, and is characterized in that: the upper die assembly includes an upper template, a first backing plate adhered to the bottom surface of the upper template, a cutter positioning frame fixed to the lower side of the first backing plate, and an annular cutter fixed to the cutter positioning frame. The cutting edge of the annular cutter is arranged vertically downward. An inner pressing plate is movably arranged in the internal area defined by the annular cutter. A first elastic member is connected between the inner pressing plate and the upper template. A second backing plate is also adhered to the bottom surface of the inner pressing plate. An annular outer pressing plate is movably arranged outside the annular cutter. A second elastic member is connected between the outer pressing plate and the cutter positioning frame. A blade accommodating groove for accommodating the annular cutter is formed between the inner side wall of the outer pressing plate and the outer side wall of the inner pressing plate. The outer pressing plate and the inner pressing plate can be reset downward under the elastic return of the second elastic member and the first elastic member until the whole annular cutter retracts into the blade accommodating groove

[0005] The lower mold assembly includes a lower template and a punch disposed on the upper side of the lower template. The upper surface of the punch has a recessed portion in the middle. A third pad is attached to the upper surface of the punch. The outer contour of the third pad is adapted to the inner contour of the annular cutter.

[0006] The upper mold assembly of this invention is mounted on a press and can be driven to move up and down by the press. The lower mold assembly is directly opposite and fixed to the upper mold assembly. The press needs to have a vertical guide assembly to ensure that the upper mold assembly maintains a vertical movement path during the up and down movement. The edge-cutting principle of this invention is as follows: the outer paper, foam board, and bottom paper are placed sequentially on the punch of the lower mold plate, ensuring they are roughly aligned. The protruding part of the outer paper is completely matched with the recessed part and is completely embedded in the recessed part. The foam board is completely embedded in the outer paper. The bottom surface of the bottom paper has been coated with quick-drying adhesive. Then, the press pushes the upper mold assembly down. The outer pressure plate and the second pad first contact the bottom paper and press the edges of the outer paper and bottom paper onto the third pad. The protruding parts of the foam board and the outer paper are also completely pushed into the recessed part and abut against the bottom of the recessed part. As the upper mold assembly continues to press down, the elastic force applied to the outer and inner pressure plates by the second and first elastic elements also continues to increase. The pressure of the outer pressure plate is used to keep the outer edge of the paper straight and avoid... During the trimming process, wrinkles occur. The pressure of the inner pressure plate is used to increase the pressure at the bonding area; the greater the pressure, the stronger the bond. During this process, the annular cutter in the blade receiving groove gradually extends and cuts the outer and backing papers until the annular cutter abuts against the third pad. At this point, the trimming process is complete, but it is generally necessary to maintain this state for a few seconds to increase the adhesion between the papers. Then, the press pulls the upper mold assembly upward to reset. Initially, the outer and inner pressure plates remain fixed under the rebound of the elastic element, and the annular cutter begins to gradually retract into the blade receiving groove. This ensures that the cake base and scrap edges will not get stuck on the annular cutter. Then, the outer and inner pressure plates leave the cake base, at which point the cake base and scrap edges can be removed.

[0007] Furthermore, the cutter positioning frame is provided with several guide grooves, and several guide blocks that slide in cooperation with the guide grooves are fixed on the upper side of the outer pressure plate. A stepped screw penetrating the first pad is connected between some of the guide blocks and the upper template. The second elastic element is located in the guide groove and abuts against the top of the guide block. Several stepped screws are also connected between the inner pressure plate and the upper template. The tail of the stepped screw is a screw rod, which can be screwed and fixed to the guide block and the inner pressure plate. The middle part of the stepped screw is a smooth rod, which penetrates the upper template and can move freely. The head of the stepped screw is a nut, which can limit the movement of the upper template. This invention uses stepped screws to limit the reset distance of the guide block and the inner pressure plate.

[0008] Furthermore, the inner pressure plate is provided with an upper vent hole that also penetrates the second pad, and the bottom of the recessed portion is provided with a lower vent hole that penetrates the lower template. Both the upper and lower vent holes are used to stabilize the air pressure on the upper and lower surfaces of the cake base, preventing a suction effect during demolding.

[0009] Furthermore, the number of the first elastic elements is several and they are distributed in a ring around the periphery of the inner pressure plate, with their distribution range corresponding to the third pad. The first elastic element is preferably a spring. This invention increases the downward pressure applied by the inner pressure plate to the cake base during the pressure holding stage by increasing the number of the first elastic elements. Since the reaction force applied by the cake base to the inner pressure plate during the pressure holding stage is mainly concentrated on the periphery of the pressure plate, in order to avoid uneven force distribution causing deformation of the inner pressure plate, the distribution position of the first elastic elements is approximately the same as the position of the third pad.

[0010] Furthermore, the upper template, the lower template, and the inner pressure plate are all made of aluminum alloy blocks, while the first pad, the second pad, the third pad, and the outer pressure plate are all made of stainless steel plates. Aluminum alloy blocks offer high strength and light weight, effectively reducing the overall weight of this invention, while stainless steel meets the strength and wear resistance requirements of these components.

[0011] Therefore, this utility model has the following characteristics compared with the prior art: 1. This utility model has the function of bonding and trimming the bottom paper, foam board and top paper at the same time; 2. This utility model uses an upper template, lower template and inner pressure plate made of aluminum alloy, which achieves a greater weight reduction effect. Attached Figure Description

[0012] Appendix Figure 1 This is an exploded view of the upper mold assembly;

[0013] Appendix Figure 2 This is a sectional view along line AA when the upper mold assembly is not under pressure;

[0014] Appendix Figure 3 This is a BB-direction cross-sectional view of the present invention when it is not under pressure;

[0015] Appendix Figure 4 This is a cross-sectional view of the upper mold assembly under pressure;

[0016] Appendix Figure 5 This is a structural schematic diagram of the lower mold assembly. Detailed Implementation

[0017] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0018] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0019] Example 1: See Figure 1 , Figure 2 , Figure 3 and Figure 4 A cake base trimming mold is disclosed. The cake base is square. The trimming mold includes an upper mold assembly 100 and a lower mold assembly 200 facing each other. The upper mold assembly includes an upper template 110, a first pad 120 attached to the bottom surface of the upper template, a cutter positioning frame 130 fixed to the lower side of the first pad, and an annular cutter 140 fixed to the cutter positioning frame. The cutting edge of the annular cutter is vertically downward. Eight positioning bolts 10 are screwed onto the side wall of the cutter positioning frame, with the tails of the positioning bolts penetrating the annular cutter. The inner area defined by the annular cutter... The inner pressure plate 150 is provided in the movable part area. A first elastic element 20 is connected between the inner pressure plate and the upper template. A second pad 160 is also attached to the bottom surface of the inner pressure plate. An annular outer pressure plate 170 is provided on the outer side of the annular cutter. A second elastic element 30 is connected between the outer pressure plate and the cutter positioning frame. A blade receiving groove for accommodating the annular cutter is formed between the inner side wall of the outer pressure plate and the outer side wall of the inner pressure plate. The outer pressure plate and the inner pressure plate can be reset downward under the rebound action of the second elastic element and the first elastic element until the annular cutter is retracted into the blade receiving groove.

[0020] See Figure 5 The lower mold assembly includes a lower template 210 and a punch 220 located on the upper side of the lower template. The upper surface of the punch has a recess 230 in the middle. A third pad 240 is attached to the upper surface of the punch. The outer contour of the third pad is adapted to the inner contour of the annular cutter.

[0021] The upper template, lower template, and inner pressure plate are all made of aluminum alloy blocks, while the first pad, second pad, third pad, and outer pressure plate are all made of stainless steel. The cutter positioning frame is made of carbon steel. The aluminum alloy blocks have the advantages of high strength and light weight, which can effectively reduce the weight of this embodiment, while stainless steel can meet the strength and wear resistance requirements of these components.

[0022] See Figure 1 and Figure 3The cutter positioning frame has eight guide grooves 131. Eight guide blocks 171, which slide and engage with the guide grooves, are fixed to the upper side of the outer pressure plate. A stepped screw 40, penetrating the first pad, connects some of the guide blocks to the upper template. A second elastic element is located within the guide groove and abuts against the top of the guide block. An upwardly protruding guide protrusion 151 is located on the upper side of the inner pressure plate. An inner guide groove 111, which slides and engages with the guide protrusion, is located on the bottom surface of the upper template. Eight stepped screws also connect the inner pressure plate and the upper template. The tail of the stepped screw is a screw rod, which can be screwed and fixed to the guide block and the inner pressure plate. The middle of the stepped screw is a smooth rod, which penetrates the upper template and can move freely. The head of the stepped screw is a nut, which can limit the movement of the upper template. In this embodiment, the stepped screws limit the reset distance of the guide block and the inner pressure plate.

[0023] See Figure 1 and Figure 5 The inner pressure plate has an upper vent 152 that also penetrates the second pad, and the bottom of the recessed part has a lower vent 250 that penetrates the lower mold plate. Both the upper and lower vents are used to stabilize the air pressure on the upper and lower surfaces of the cake base, preventing a sticking effect during demolding.

[0024] See Figure 1 The first elastic element consists of 48 pieces arranged in a ring around the periphery of the inner pressure plate, with its distribution area corresponding to that of the third pad. The first elastic element is preferably a spring. In this embodiment, the downward pressure exerted by the inner pressure plate on the cake base during the pressure-holding stage is increased by increasing the number of the first elastic elements. Because the reaction force exerted by the cake base on the inner pressure plate during the pressure-holding stage is mainly concentrated on the periphery of the pressure plate, the distribution position of the first elastic elements is approximately the same as that of the third pad to avoid uneven force distribution leading to deformation of the inner pressure plate.

[0025] In this embodiment, the upper mold assembly is mounted on a press and can be driven to move up and down by the press. The lower mold assembly is directly opposite and fixed to the upper mold assembly. The press needs to have a vertical guide assembly to ensure that the upper mold assembly maintains a vertical movement path during the up and down movement. The cutting principle of this embodiment is as follows: the outer paper, foam board, and bottom paper are placed sequentially on the punch of the lower mold, ensuring that they are roughly aligned. The protruding part of the outer paper is completely matched with the concave part and is completely embedded in the concave part. The foam board is completely embedded in the outer paper. The bottom surface of the bottom paper has been coated with quick-drying adhesive. Then, the press pushes the upper mold assembly down. The outer pressure plate and the second pad first contact the bottom paper and press the edges of the outer paper and bottom paper onto the third pad. The protruding parts of the foam board and the outer paper are also completely pushed into the concave part and abut against the bottom of the concave part. As the upper mold assembly continues to press down, the elastic force applied to the outer pressure plate and the inner pressure plate by the second elastic element and the first elastic element also continues to increase. The pressure of the outer pressure plate is used to keep the outer edge of the paper straight and avoid edge cutting during the cutting process. The pressure of the inner pressure plate is used to increase the pressure at the bonding area; the greater the pressure, the stronger the bond. During this process, the annular cutter in the blade receiving groove gradually extends and cuts the outer and backing papers until the annular cutter abuts against the third pad. At this point, the edge trimming process is complete, but in this embodiment, this state needs to be maintained for about 2 seconds. The pressure at this time is about 2T to increase the adhesion between the papers. Then, the press pulls the upper mold assembly upward to reset. Initially, the outer and inner pressure plates remain fixed under the rebound of the elastic element, and the annular cutter begins to gradually retract into the blade receiving groove. This ensures that the cake base and scrap edges will not get stuck on the annular cutter. Then, the outer and inner pressure plates leave the cake base, at which point the cake base and scrap edges can be removed.

[0026] This invention can be modified in many ways, as will be apparent to those skilled in the art, and such modifications are not considered to depart from the scope of this invention. All such modifications that are obvious to those skilled in the art are included within the scope of these claims.

Claims

1. A cake base production edge-cutting mold, comprising an upper mold assembly and a lower mold assembly facing each other, characterized in that: The upper mold assembly includes an upper mold plate, a first pad plate attached to the bottom surface of the upper mold plate, a cutter positioning frame fixed to the lower side of the first pad plate, and an annular cutter fixed to the cutter positioning frame. The cutting edge of the annular cutter is vertically downward. An inner pressure plate is movably provided in the internal area defined by the annular cutter. A first elastic element is connected between the inner pressure plate and the upper mold plate. A second pad plate is also attached to the bottom surface of the inner pressure plate. An annular outer pressure plate is movably provided on the outer side of the annular cutter. A second elastic element is connected between the outer pressure plate and the cutter positioning frame. A blade receiving groove for accommodating the annular cutter is formed between the inner sidewall of the outer pressure plate and the outer sidewall of the inner pressure plate. The outer pressure plate and the inner pressure plate can be reset downward under the rebound action of the second elastic element and the first elastic element until the annular cutter is completely retracted into the blade receiving groove. The lower mold assembly includes a lower template and a punch disposed on the upper side of the lower template. The upper surface of the punch has a recessed portion in the middle. A third pad is attached to the upper surface of the punch. The outer contour of the third pad is adapted to the inner contour of the annular cutter.

2. The cake base production edge-cutting mold according to claim 1, characterized in that: The cutter positioning frame is provided with several guide grooves. Several guide blocks that slide with the guide grooves are fixed on the upper side of the outer pressure plate. Some guide blocks are connected to the upper template by stepped screws that penetrate the first pad. The second elastic element is provided in the guide groove and abuts against the top of the guide block. The upper side of the inner pressure plate is provided with an upwardly protruding guide protrusion. The bottom surface of the upper template is provided with an inner guide groove that slides with the guide protrusion. Several stepped screws are also connected between the inner pressure plate and the upper template.

3. The edge-cutting mold for cake base production according to claim 1 or 2, characterized in that: The inner pressure plate is provided with an upper vent hole that also penetrates the second pad plate, and the bottom of the recessed part is provided with a lower vent hole that penetrates the lower template.

4. The edge-cutting mold for cake base production according to claim 1, characterized in that: The first elastic element is of several kinds and is distributed in a ring around the periphery of the inner pressure plate, and its distribution range corresponds to the third pad.

5. The edge-cutting mold for cake base production according to claim 1, characterized in that: The upper template, the lower template, and the inner pressure plate are all aluminum alloy blocks, while the first pad, the second pad, the third pad, and the outer pressure plate are all stainless steel plates.

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