A multi-acupoint cup body injection mold based on a row position compact design

Abstract

The utility model relates to injection mold technical field especially is involved in a kind of multi-meridian cup body injection mold based on compact design of line position, including mutually matched upper die main body and lower die main body, upper die main body and lower die main body between being provided with multiple die pin assemblies, and upper die main body is provided with the glue inlet system that butt joins in die pin assembly, lower die main body is provided with the ejection mechanism that butt joins in die pin assembly, die pin assembly includes mutually butt-joined upper die pin and lower die pin, upper die pin is provided with product outside profiling groove, upper die pin is also provided with the glue inlet component that butt joins product outside profiling groove with glue inlet system;By integrating line position slider in the side line position sliding groove of ejector plate, compact design of line position is realized in combination with shovel base, elastic member and limiting structure, the space occupied by line position mechanism is greatly reduced, so that multiple die pin assemblies can be arranged in smaller size, multi-meridian injection molding is realized, and space utilization and production efficiency are effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and in particular to a multi-cavity cup injection mold based on a compact sliding design. Background Technology

[0002] In the modern fast-moving consumer goods (FMCG) beverage industry, disposable milk tea cups are widely used as convenient containers for milk tea and other beverages due to their flexibility and practicality. These cups are mostly made of PP, PET, and other plastics, and can be designed with various capacities and sizes to meet different beverage needs. The most common shape is round, but U-shaped and other unique designs are also available. To balance practicality and promotional appeal, their appearance is often decorated with transparent finishes, frosted effects, printing, and hot stamping, satisfying consumers' need for direct observation of the beverage while providing businesses with an effective brand promotion medium. To further enhance ease of use, disposable milk tea cups are usually equipped with leak-proof lids to prevent spills, a design that greatly facilitates dispensing for businesses and carrying for consumers.

[0003] In terms of manufacturing methods, existing disposable milk tea cups are mainly produced through injection molding. Regarding the cup's structural design, to achieve a sealed lid and connection between the cup body and the carrying strap, facilitating carrying and other functions, the opening of the cup body needs not only a structure to fit the lid but also an opening for connecting the carrying strap.

[0004] However, the molding of such side structures with openings requires the mold to be equipped with sliding blocks. The design of the traditional sliding mechanism will lead to an increase in the overall size of the mold, which is particularly evident when the mold has multiple cavities. Due to the limitations of the sliding mechanism, the mold cannot achieve a multi-cavity design in a smaller size, which in turn affects the production efficiency and space utilization of the mold to a certain extent, and increases the production cost.

[0005] Therefore, it is necessary to propose an improved technical solution to address the above problems. Utility Model Content

[0006] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0007] A multi-cavity cup injection mold based on a compact sliding design includes an upper mold body and a lower mold body that cooperate with each other. Multiple mold core assemblies are arranged between the upper mold body and the lower mold body. The upper mold body is provided with a gluing system that docks with the mold core assemblies, and the lower mold body is provided with an ejection mechanism that docks with the mold core assemblies. The mold core assembly includes an upper mold core and a lower mold core that dock with each other. The upper mold core is provided with a product outer contour groove and a gluing component that docks the product outer contour groove with the gluing system. The lower mold core is provided with a product inner contour block, and the upper mold core is provided with an ejector plate surrounding the product inner contour block. The ejector plate is poweredly connected to the ejection mechanism. The product outer contour groove, the product inner contour block, and the ejector plate enclose and form a mold cavity.

[0008] The ejector plate has at least one sliding groove on its side, and a sliding slider is slidably connected to the sliding groove. The sliding slider has a core structure that engages with the mold cavity. A limit structure is provided between the sliding slider and the sliding groove to limit the sliding stroke of the sliding slider. An elastic element is also provided between the ejector plate and the sliding slider. The elastic element is used to drive the sliding slider to disengage the core structure from the mold cavity. The upper mold core is also provided with a shovel base corresponding to the sliding slider. The shovel base is used to drive the sliding slider to engage the core structure with the mold cavity.

[0009] Preferably, the ejector plate includes a base plate and a pad fixedly mounted on the base plate. The base plate is poweredly connected to the ejector mechanism. The sliding groove includes a slot portion provided on the side of the base plate and a notch portion provided on the side of the pad. The width of the slot portion is greater than the width of the notch portion, so that the slot portion and the notch portion form a T-shaped structure. The slider matches the T-shaped structure and is thus constrained on the ejector plate.

[0010] Preferably, the limiting structure includes a limiting groove formed at the bottom of the sliding slider and a limiting member disposed at the bottom of the sliding groove. The limiting member is engaged with the limiting groove, and the length of the limiting groove in the sliding direction of the sliding slider is greater than the length of the limiting member in the sliding direction of the sliding slider.

[0011] Preferably, the core structure is located on the front side of the upper part of the sliding block, and the elastic element is connected to the lower part of the sliding block.

[0012] Preferably, the sliding block has at least one receiving hole at the lower front position, and the elastic element includes at least one spring that abuts against the receiving hole, and the spring elastically abuts against the inner side of the sliding groove.

[0013] Preferably, the back of the sliding block is a sloping structure, the shovel base abuts against the back of the sliding block, and a T-shaped piece is connected to the shovel base. The back of the sliding block has a T-shaped groove that runs through the upper and lower ends, and the inclination of the T-shaped groove matches the back of the sliding block. The shovel base is movably connected to the T-shaped groove through the T-shaped piece.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] By integrating the slide block into the side slide groove of the ejector plate, and combining it with the shovel base, elastic element and limiting structure, the slide block is compactly designed, which greatly reduces the space occupied by the slide block mechanism. This allows the mold to arrange multiple mold core assemblies in a smaller size, realize multi-cavity injection molding, and effectively improve space utilization and production efficiency. At the same time, the integrated layout of the slide block and the ejector plate reduces the limitation of the traditional slide block mechanism on the overall size of the mold, simplifies the mold structure, reduces the mold manufacturing cost and maintenance difficulty, and ensures the motion accuracy of the slide block through the limiting structure, ensuring the stable molding quality of the side structure of the product, and can be adapted to the injection molding of disposable milk tea cups with holes and other structures on the side.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the disassembled structure of the mold core assembly in this utility model from one perspective;

[0020] Figure 3 This is a schematic diagram of the disassembled structure of the mold core assembly from another perspective in this utility model;

[0021] Figure 4 This is a schematic diagram showing the disassembled structure of the ejector plate and the sliding mechanism in this utility model;

[0022] Figure 5 This is a cross-sectional structural diagram of the ejector plate and the sliding mechanism in this utility model;

[0023] Figure 6 This is a schematic diagram of another cross-sectional structure of the ejector plate and the sliding mechanism in this utility model.

[0024] The reference numerals and names in the figure are as follows:

[0025] Upper mold body 10, injection system 11, lower mold body 20, mold core assembly 30, upper mold core 40, outer contour groove of product 41, injection component 42, lower mold core 50, inner contour block of product 51, ejector plate 60, sliding groove 61, groove part 611, notch part 612, base plate 62, pad plate 63, sliding slider 70, core structure 71, elastic element 72, receiving hole 73, T-shaped groove 74, limiting structure 80, limiting groove 81, limiting element 82, shovel base 90, T-shaped element 91. Detailed Implementation

[0026] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] Please see Figure 1-6 In this embodiment of the present invention, a multi-cavity cup injection mold based on a compact sliding design includes an upper mold body 10 and a lower mold body 20 that cooperate with each other. Multiple mold core assemblies 30 are disposed between the upper mold body 10 and the lower mold body 20. The upper mold body 10 is provided with a gluing system 11 that docks with the mold core assemblies 30, and the lower mold body 20 is provided with an ejection mechanism that docks with the mold core assemblies 30. The mold core assembly 30 includes an upper mold core 40 and a lower mold core 40 that dock with each other. The mold core 50 has an upper mold core 40 with a product outer contour groove 41 and a glue injection component 42 that connects the product outer contour groove 41 to the glue injection system 11. The lower mold core 50 has a product inner contour block 51 and the upper mold core 40 has an ejector plate 60 surrounding the product inner contour block 51. The ejector plate 60 is poweredly connected to the ejection mechanism. The product outer contour groove 41, the product inner contour block 51 and the ejector plate 60 together form a mold cavity.

[0028] The ejector plate 60 has at least one sliding groove 61 on its side, and a sliding slider 70 is slidably connected to the sliding groove 61. The sliding slider 70 has a core structure 71 that engages with the mold cavity. A limiting structure 80 is provided between the sliding slider 70 and the sliding groove 61 to limit the sliding stroke of the sliding slider 70. An elastic element 72 is also provided between the ejector plate 60 and the sliding slider 70. The elastic element 72 is used to drive the sliding slider 70 to disengage the core structure 71 from the mold cavity. The upper mold core 40 is also provided with a shovel base 90 corresponding to the sliding slider 70. The shovel base 90 is used to drive the sliding slider 70 to engage the core structure 71 with the mold cavity.

[0029] When the mold is working, the upper mold body 10 and the lower mold body 20 are closed, the upper mold core 40 and the lower mold core 50 are mated together, and the shovel base 90 pushes the sliding block 70 to slide along the sliding groove 61 of the ejector plate 60, compressing the elastic element 72, so that the core structure 71 of the sliding block 70 is mated with the mold cavity. At this time, the outer contour groove 41 of the product, the inner contour block 51 of the product, the ejector plate 60 and the core structure 71 together form a complete mold cavity; the glue injection system 11 injects molten raw material into the mold cavity through the glue injection component 42 of the upper mold core 40. After the raw material is formed into a cup product, the upper mold body 10 and the lower mold body 20 are opened, and the shovel base 90 follows. The mold body 10 disengages from the slide block 70, and the elastic element 72 drives the slide block 70 to reset, causing the core structure 71 to disengage from the opening and other structures on the side of the product. Subsequently, the ejection mechanism of the lower mold body 20 drives the ejection plate 60 to move upward. The ejection plate 60 pushes the molded cup product away from the inner contour block 51 of the product, completing the product ejection. After the ejection mechanism resets, the ejection plate 60 returns to its initial position, and the slide block 70 is also kept within the set stroke range under the constraint of the limiting structure 80. In the above scheme, the glue injection system 11 and the ejection mechanism adopt conventional technical means in this field, and their working principle will not be described in detail in this technical solution.

[0030] By integrating the slide block 70 into the side slide groove 61 of the ejector plate 60, and combining it with the shovel base 90, elastic element 72 and limiting structure 80, a compact design of the slide block is achieved, which greatly reduces the space occupied by the slide block mechanism. This allows the mold to arrange multiple mold core assemblies 30 in a smaller size, realizing multi-cavity injection molding, and effectively improving space utilization and production efficiency. At the same time, the integrated layout of the slide block 70 and the ejector plate 60 reduces the limitations of the traditional slide block mechanism on the overall size of the mold, simplifies the mold structure, reduces mold manufacturing costs and maintenance difficulty, and ensures the motion accuracy of the slide block 70 through the limiting structure 80, ensuring the stable molding quality of the side structure of the product, and is suitable for injection molding of disposable milk tea cups with holes and other structures on the side.

[0031] Please see Figure 2-6Based on the above technical solution, it is further proposed that the ejector plate 60 includes a base plate 62 and a pad 63 fixedly installed on the base plate 62. The base plate 62 is poweredly connected to the ejector mechanism. The sliding groove 61 includes a groove portion 611 provided on the side of the base plate 62 and a notch portion 612 provided on the side of the pad 63. The width of the groove portion 611 is greater than the width of the notch portion 612, so that the groove portion 611 and the notch portion 612 form a T-shaped structure. The sliding slider 70 matches the T-shaped structure and is thus constrained on the ejector plate 60. This design, on the one hand, provides a stable lateral and vertical constraint on the slide block 70 through the T-shaped structure, effectively preventing problems such as displacement or detachment of the slide block 70 during sliding, ensuring its motion stability and precision, thereby guaranteeing the molding quality of structures such as the openings on the side of the cup body; on the other hand, by separating the slide groove 61 onto the base plate 62 and the pad plate 63, it simplifies the processing difficulty of individual components, facilitates precise control of the dimensions of the slide groove 61, and forms a compact constraint structure through the combination of the two without increasing the overall volume of the mold, further consolidating the advantages of the compact slide design, making it easier to realize multi-cavity layouts in small-sized molds, while also improving the ease of mold assembly and maintenance.

[0032] Please see Figure 4-6 Based on the above technical solution, a further limiting structure 80 is proposed, including a limiting groove 81 formed at the bottom of the slide block 70 and a limiting member 82 set at the bottom of the slide groove 61. The limiting member 82 is engaged with the limiting groove 81, and the length of the limiting groove 81 in the sliding direction of the slide block 70 is greater than the length of the limiting member 82 in the sliding direction of the slide block 70. Through the cooperation of the limiting member 82 and the limiting groove 81, the sliding stroke of the slide block 70 is precisely limited, avoiding the impact of excessive or insufficient sliding on the docking accuracy between the core structure 71 and the mold cavity, and effectively ensuring the molding quality of structures such as the side opening of the cup body.

[0033] Please see Figure 4 Based on the above technical solution, it is further proposed that the core structure 71 is set on the front side of the upper part of the slide block 70, and the elastic element 72 is connected to the lower part of the slide block 70. The slide block 70 has at least one receiving hole 73 at the front position of the lower part, and the elastic element 72 includes at least one spring connected to the receiving hole 73. The spring elastically abuts against the inner side of the slide groove 61. This makes the installation position of the elastic element 72 more reasonable, and can provide a stable reset driving force for the slide block 70, ensuring that the core structure 71 accurately disengages from the mold cavity. At the same time, the spring is integrated between the receiving hole 73 and the inner side of the slide groove 61, without occupying other space in the mold, further improving the compactness of the mold structure and facilitating the realization of multi-cavity layout.

[0034] Please see Figure 2-6Based on the above technical solution, it is further proposed that the back of the slide block 70 is a sloping structure, and the shovel base 90 abuts against the back of the slide block 70. A T-shaped part 91 is also connected to the shovel base 90. A T-shaped groove 74 is opened on the back of the slide block 70, which runs through the upper and lower ends. The inclination of the T-shaped groove 74 matches the inclination of the back of the slide block 70. The shovel base 90 is movably connected to the T-shaped groove 74 through the T-shaped part 91. This design allows the driving force of the shovel base 90 on the slide block 70 to be more efficiently converted into the sliding power of the slide block 70 along the slide groove 61, which improves the accuracy and stability of the cooperation between the two and ensures that the core structure 71 reliably connects to the mold cavity. At the same time, the cooperation between the T-shaped part 91 and the T-shaped groove 74 provides good guidance and constraint for the slide block 70, effectively preventing it from deviating or getting stuck during sliding, and ensuring the smooth operation of the mold.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A multi-acupoint cup body injection mold based on a row position compact design, comprising a matched upper mold body (10) and a lower mold body (20), a plurality of mold core assemblies (30) are arranged between the upper mold body (10) and the lower mold body (20), and the upper mold body (10) is provided with a glue feeding system (11) which is connected to the mold core assembly (30), and the lower mold body (20) is provided with an ejection mechanism which is connected to the mold core assembly (30), characterized in that, The mold core assembly (30) includes an upper mold core (40) and a lower mold core (50) that are connected and cooperate with each other. The upper mold core (40) is provided with a product outer contour groove (41). The upper mold core (40) is also provided with a glue injection component (42) that connects the product outer contour groove (41) with the glue injection system (11). The lower mold core (50) is provided with a product inner contour block (51). The upper mold core (40) is also provided with an ejector plate (60) surrounding the product inner contour block (51). The ejector plate (60) is poweredly connected to the ejector mechanism. The product outer contour groove (41), the product inner contour block (51) and the ejector plate (60) enclose to form a mold cavity. The ejector plate (60) has at least one sliding groove (61) on its side, and a sliding block (70) is slidably connected at the sliding groove (61). The sliding block (70) has a core structure (71) that engages with the mold cavity. A limit structure (80) is provided between the sliding block (70) and the sliding groove (61) to limit the sliding stroke of the sliding block (70). An elastic element (72) is also provided between the ejector plate (60) and the sliding block (70). The elastic element (72) is used to drive the sliding block (70) to make the core structure (71) disengage from the mold cavity. The upper mold core (40) is also provided with a shovel base (90) corresponding to the sliding block (70). The shovel base (90) is used to drive the sliding block (70) to make the core structure (71) engage with the mold cavity.

2. The multi-acupoint cup body injection mold based on the row position compact design according to claim 1, characterized in that, The ejector plate (60) includes a base plate (62) and a pad (63) fixedly mounted on the base plate (62). The base plate (62) is poweredly connected to the ejector mechanism. The sliding groove (61) includes a slot (611) provided on the side of the base plate (62) and a notch (612) provided on the side of the pad (63). The width of the slot (611) is greater than the width of the notch (612), so that the slot (611) and the notch (612) form a T-shaped structure. The slider matches the T-shaped structure and is thus constrained on the ejector plate (60).

3. The multi-cup body injection mold based on line position compact design according to claim 1, characterized in that, The limiting structure (80) includes a limiting groove (81) opened at the bottom of the sliding block (70) and a limiting member (82) set at the bottom of the sliding groove (61). The limiting member (82) is connected to the limiting groove (81). The length of the limiting groove (81) in the sliding direction of the sliding block (70) is greater than the length of the limiting member (82) in the sliding direction of the sliding block (70).

4. The multi-cup body injection mold based on line position compact design according to claim 1, characterized in that, The core structure (71) is located on the front side of the upper part of the sliding block (70), and the elastic element (72) is connected to the lower part of the sliding block (70).

5. The multi-cup body injection mold based on line position compact design according to claim 4, characterized in that, The sliding block (70) has at least one receiving hole (73) at the front position of the lower part, and the elastic member (72) includes at least one spring that abuts against the receiving hole (73), and the spring elastically abuts against the inner side of the sliding groove (61).

6. The multi-cup body injection mold based on line position compact design according to claim 1, characterized in that, The back of the sliding block (70) is a sloping structure. The shovel base (90) abuts against the back of the sliding block (70). A T-shaped piece (91) is also connected to the shovel base (90). A T-shaped groove (74) is provided on the back of the sliding block (70) that runs through the upper and lower ends. The inclination of the T-shaped groove (74) matches that of the back of the sliding block (70). The shovel base (90) is movably connected to the T-shaped groove (74) through the T-shaped piece (91).

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