Disposable plastic cup demolding mechanism

Abstract

The utility model discloses a disposable plastic cup demolding mechanism, and relates to the technical field of disposable plastic cup processing. The mold comprises a demolding assembly, and the demolding assembly comprises a mold core, a mold cavity integrally formed in the mold core, forming cavities evenly arranged in the mold cavity at equal intervals in a sunken mode, a top plate arranged below the mold core in parallel, a top rod integrally fixed to the upper side face of the top plate, and a movable block movably embedded into the top of the top rod. The air pump is matched with an inner cavity of the top plate through an air conveying pipe, a fixed protrusion is fixed to the inner wall of the ejector rod, and spring filaments are connected to the upper side of the fixed protrusion and the edge of the lower side face of the movable block. According to the utility model, the demoulding assembly is arranged to carry out auxiliary demoulding on the disposable plastic cup subjected to injection molding, instant demoulding of the disposable plastic cup is realized through air-blowing ejection of the movable block, then the ejector rod is pushed by the ejector plate to rise, the disposable plastic cup is supported, the demoulding work is finished, the demoulding device is efficient and rapid, and the disposable plastic cup is not easy to damage.

Description

Technical Field

[0001] The utility model belongs to the technical field of disposable plastic cup processing, and particularly relates to a demoulding mechanism for disposable plastic cups. Background Technique

[0002] A plastic cup refers to a disposable container used to hold beverages and tea. It is a non-degradable product and a major source of white pollution. Disposable plastic cups are most commonly used in beverage stores, milk tea shops, hotels, restaurants, coffee shops, etc. to provide takeout beverages and on-site use with various plastic cups.

[0003] Regarding the demoulding technology after the plastic cup is formed, the existing publicly disclosed patent (publication number: CN 214111116U) discloses a demoulding mechanism for disposable plastic cups, which includes a fixed seat. A female die and a pushing mechanism are provided on the fixed seat. A cavity is provided on the female die, and a forming block is provided at the bottom of the cavity. The pushing mechanism is used to drive the forming block to move downward in the cavity. A rotating mechanism is connected to the outside of the fixed seat, and the rotating mechanism is used to drive the fixed seat to rotate. A stopping mechanism is connected to the outside of the fixed seat, and the stopping mechanism is used to fix the fixed seat. The demoulding mechanism of the disposable plastic cup of the utility model has a novel structural design, is easy to manufacture, is convenient and fast to use, and can quickly take out the formed plastic cup from the female die.

[0004] When the above demoulding mechanism is in use, it is easy to damage the plastic cup. For this reason, we provide a demoulding mechanism for disposable plastic cups to solve the above problems. Content of the Utility Model

[0005] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0006] The utility model provides a demoulding mechanism for disposable plastic cups, which includes a demoulding assembly. The demoulding assembly includes a die core, a die cavity integrally formed inside the die core, forming cavities evenly and recessedly arranged at equal intervals inside the die cavity, a top plate parallel to the lower side of the die core, ejector rods integrally fixed on the upper side of the top plate, movable blocks movably embedded at the top of the ejector rods, and an air pump cooperated with the internal cavity of the top plate through an air delivery pipe.

[0007] The utility model is further provided that a support plate is arranged at the edge of the lower side of the die core, and the air pump is fixed on the side of the support plate.

[0008] The utility model is further provided that a bottom plate is arranged parallel to the lower side of the top plate, cylinders are symmetrically fixed on the upper side of the bottom plate, and the piston ends of the cylinders are fixed on the lower side of the top plate.

[0009] The utility model is further provided that guide rods are fixed at the corners of the upper side of the bottom plate, and the upper ends of the guide rods penetrate through the corners of the top plate.

[0010] The utility model is further configured such that guide grooves are provided at the corners of the side edges of the support plate and the die core, and rods are inserted into the guide grooves.

[0011] The utility model is further configured such that the top plate and the ejector rod are both provided with cavities inside. The top plate is provided with a segmented cavity inside, and the cavities are respectively connected to the corresponding gas transmission pipes.

[0012] The utility model is further configured such that the cavity inside the ejector rod communicates with the cavity inside the top plate, and the opening at the end of the ejector rod is adapted to the movable block.

[0013] The utility model is further configured such that fixing protrusions are fixed on the inner wall of the ejector rod, and spring filaments are connected between the upper side of the fixing protrusions and the side edge of the lower surface of the movable block.

[0014] The utility model has the following beneficial effects:

[0015] By arranging a demolding assembly to assist in demolding the injection-molded disposable plastic cup, the movable block is used to blow air and eject, so as to realize the instantaneous demolding of the disposable plastic cup. Then, the top plate is used to push the ejector rod to rise, and the disposable plastic cup is lifted to complete the demolding work, which is efficient and fast, and is not easy to damage the disposable plastic cup.

[0016] The cavity inside the top plate communicates with the cavity inside the ejector rod. When the gas transmission pipe ventilates the cavity inside the top plate, the air pressure inside the top plate and the ejector rod increases, pushing the movable block to move instantaneously relative to the end of the ejector rod, so as to instantaneously lift and demold the disposable plastic cup in the molding cavity. To ensure the air-blowing effect of the air pump, a double air pump is arranged, and the inner cavity of the top plate is divided into two sections. The gas transmission pipe can instantaneously increase the air pressure inside its cavity. After the air pump stops working, the movable block returns to its original position under the traction of the spring filaments, closing and blocking the opening at the end of the ejector rod to avoid affecting the subsequent injection molding.

[0017] Of course, when implementing any product of the utility model, it is not necessarily required to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present utility model, and for those of ordinary skill in the art, other drawings can be obtained according to these drawings without creative efforts.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0020] Figure 2 It is a schematic top view of the overall structure of the present utility model.

[0021] Figure 3 This is a side view schematic diagram of the overall structure of the present utility model.

[0022] Figure 4 This is an installation schematic diagram of the movable block in the present utility model.

[0023] In the accompanying drawings, the list of components represented by each reference numeral is as follows:

[0024] 1. Demolding assembly; 11. Mold core; 12. Support plate; 13. Top plate; 14. Bottom plate; 15. Guide rod; 16. Air pump; 17. Air delivery pipe; 18. Mold cavity; 19. Molding cavity; 110. Guide groove; 111. Movable block; 112. Spring filament; 113. Fixed protrusion; 114. Ejector rod. Specific embodiments

[0025] 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 present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Embodiment

[0027] Please refer to Figures 1-4 , the present utility model is a demolding mechanism for a disposable plastic cup, including a demolding assembly 1. The demolding assembly 1 includes a mold core 11, a mold cavity 18 integrally formed inside the mold core 11, a molding cavity 19 evenly and recessedly arranged at equal intervals inside the mold cavity 18, a top plate 13 parallel to the lower side of the mold core 11, an ejector rod 114 integrally fixed to the upper side of the top plate 13, a movable block 111 movably embedded in the top of the ejector rod 114, and an air pump 16 cooperating with the internal cavity of the top plate 13 through an air delivery pipe 17.

[0028] Specifically, in the demolding mechanism for a disposable plastic cup proposed in this application, by setting the demolding assembly 1 to assist in demolding the disposable plastic cup after injection molding, the instantaneous demolding of the disposable plastic cup is realized by the air injection and ejection of the movable block 111, and then the top plate 13 is used to push the ejector rod 114 to rise to lift the disposable plastic cup to complete the demolding work, which is efficient and fast, and is not likely to damage the disposable plastic cup.

[0029] Furthermore, a support plate 12 is arranged on the side edge of the lower side of the mold core 11, and the air pump 16 is fixed to the side of the support plate 12.

[0030] Specifically, the support plate 12 is used to support and install the mold core 11 and the air pump 16, and at the same time lift the mold core 11 to facilitate the assembly of its lower structure.

[0031] Furthermore, a guide rod 15 is fixed at the corner of the upper side of the bottom plate 14, and the upper end of the guide rod 15 is passed through the corner of the top plate 13. A guide groove 110 is opened at the corner of the edge of the support plate 12 and the core 11, and a rod is passed through the guide groove 110. The bottom plate 14 is arranged parallel to the top plate 13, and a cylinder is symmetrically fixed on the upper side of the bottom plate 14, and the piston end of the cylinder is fixed to the lower side of the top plate 13.

[0032] Specifically, the cylinder is started, and the piston end of the cylinder drives the top plate 13 to rise, and the top rod 114 fixed to the top plate 13 rises synchronously, and the setting of the guide rod 15 maintains the stable and balanced movement of the top plate 13.

[0033] Furthermore, the top plate 13 and the top rod 114 are both arranged in a cavity. The top plate 13 is provided with a segmented cavity, and the cavities respectively correspond to the connected air pipes 17. The internal cavity of the top rod 114 is communicated with the internal cavity of the top plate 13, and the end opening of the top rod 114 is adapted to the movable block 111. A fixing protrusion 113 is fixed to the inner wall of the top rod 114, and a spring filament 112 is connected to the upper side of the fixing protrusion 113 and the lower side edge of the movable block 111.

[0034] Specifically, the top plate 13 is communicated with the internal cavity of the top rod 114. When the air supply pipe 17 ventilates the internal cavity of the top plate 13, the internal air pressure of the top plate 13 and the top rod 114 increases, which pushes the movable block 111 to move instantaneously relative to the end of the top rod 114, so as to instantly lift and demold the disposable plastic cup in the molding cavity 19. To ensure the inflation effect of the air pump 16, a double air pump 16 is adopted, and the internal cavity of the top plate 13 is divided into two sections. The air supply pipe 17 can instantly increase the internal air pressure of the cavity. When the air pump 16 stops working, the movable block 111 returns to its original position under the traction of the spring filament 112, and closes and blocks the opening at the end of the top rod 114 to avoid affecting the subsequent injection molding.

[0035] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0036] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present utility model, so that those skilled in the relevant technical field can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A demoulding mechanism for a disposable plastic cup, comprising a demoulding assembly (1), characterized in that: The demoulding assembly (1) comprises a mold core (11), a mold cavity (18) integrally formed inside the mold core (11), a molding cavity (19) evenly recessed and arranged inside the mold cavity (18) at equal intervals, a top plate (13) arranged parallel to the bottom of the mold core (11), a push rod (114) integrally fixed to the upper side of the top plate (13), a movable block (111) movably embedded in the top of the push rod (114), and an air pump (16) matched with the internal cavity of the top plate (13) via an air pipe (17).

2. A disposable plastic cup demoulding mechanism according to claim 1, characterized in that: A support plate (12) is provided on the lower side edge of the mold core (11), and the air pump (16) is fixed to the side of the support plate (12).

3. A disposable plastic cup demoulding mechanism according to claim 1, characterized in that: A bottom plate (14) is arranged parallel to the top plate (13), a cylinder is symmetrically fixed on the upper side of the bottom plate (14), and a piston end of the cylinder is fixed to the lower side of the top plate (13).

4. A disposable plastic cup demoulding mechanism according to claim 3, characterized in that: A guide rod (15) is fixed at the corner of the upper side of the bottom plate (14), and the upper end of the guide rod (15) is inserted into the corner of the top plate (13).

5. A disposable plastic cup demoulding mechanism according to claim 2, characterized in that: A guide groove (110) is provided at the corner between the support plate (12) and the mold core (11), and a rod is passed through the inside of the guide groove (110).

6. A disposable plastic cup demoulding mechanism according to claim 1, characterized in that: The top plate (13) and the top rod (114) are both provided with cavities inside, and the top plate (13) is provided with segmented cavities inside, and the cavities respectively correspond to the connected gas delivery pipes (17).

7. A disposable plastic cup demoulding mechanism according to claim 1, characterized in that: The internal cavity of the top rod (114) is in communication with the internal cavity of the top plate (13), and the end opening of the top rod (114) is adapted to the movable block (111).

8. The demoulding mechanism for disposable plastic cups according to claim 1, characterized in that: A fixing protrusion (113) is fixed on the inner wall of the push rod (114), and a spring filament (112) is connected between the upper side of the fixing protrusion (113) and the lower side edge of the movable block (111).

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