Secondary demolding structure of environment-friendly polypropylene plastic tableware mold

By designing demolding components A and B for environmentally friendly polypropylene plastic tableware molds, and combining them with transmission components, the automated separation of the product from the fixed mold is achieved, solving the problem of low efficiency of manual demolding in existing technologies and improving production efficiency.

CN224012885UActive Publication Date: 2026-03-20QINGDAO HIGHLAND PACKAGING PROD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-04
Publication Date
2026-03-20

AI Technical Summary

Technical Problem

In existing technologies, the demolding of environmentally friendly polypropylene plastic tableware from the mold mainly relies on manual operation, which is inefficient.

Method used

An environmentally friendly polypropylene plastic tableware mold secondary demolding structure was designed, including demolding component A, demolding component B and transmission component. The product is separated from the moving mold and the fixed mold in a mechanized manner. The demolding process is completed automatically by using a gear and rack structure and motor drive.

Benefits of technology

The automated secondary demolding of environmentally friendly polypropylene plastic tableware has been achieved, which has improved production efficiency, reduced manual intervention, and enhanced production efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224012885U_ABST
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Abstract

The utility model discloses a secondary demolding structure of an environment-friendly polypropylene plastic tableware mold, which belongs to the technical field of mold demolding structures and is technically characterized by comprising a mold component, a demolding component A, a demolding component B and a transmission component. According to the utility model, after tableware production is completed and a produced product needs to be taken out from the mold assembly, the movable mold can be lifted by a certain height by rotating the screw rod A, then the product can be separated from the movable mold through the demolding assembly A, the product is arranged on the fixed mold, and the product can be taken out by operating the transmission assembly. And the product can be ejected upwards through the demolding assembly B, so that the product can be separated from the fixed mold, the product can be taken out at the moment, then single production operation is completed, the operation can be repeated subsequently, and then repeated production is carried out.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to die stripping structure technical field, concretely relates to a kind of secondary stripping structure of environmental protection polypropylene plastic tableware mould. BACKGROUND

[0002] Polypropylene (PP) is a thermoplastic resin, which is polymerized from propylene. This material is non-toxic, odorless, tasteless, and has strong chemical stability, which will not cause any pollution to food, and meets the national health standards, so it is widely used in tableware manufacturing. Environmental protection polypropylene plastic tableware can be used in a temperature range of -20℃ to 120℃, and even can be sterilized in boiling water, and is the only plastic tableware that can be put into a microwave oven for heating, which is very convenient and practical.

[0003] During the production of polypropylene plastic tableware, the product needs to be stripped, and in the prior art, the product can only be separated from the movable mold, and the separation from the fixed mold is usually completed manually by workers. Therefore, we propose a secondary stripping structure of environmental protection polypropylene plastic tableware mould to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model aims to provide a secondary stripping structure of environmental protection polypropylene plastic tableware mould to solve the problems raised in the background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A secondary stripping structure of environmental protection polypropylene plastic tableware mould, comprising a mould assembly, an A stripping assembly is provided on the mould assembly, a B stripping assembly and a transmission assembly are provided on the mould assembly, and the B stripping assembly and the transmission assembly are connected.

[0007] The mould assembly comprises a fixed mould, the fixed mould comprises a fixed mould part and an A plastic part, a notch is formed on the fixed mould part, and the A plastic part is arranged at the center of the notch.

[0008] The B stripping assembly comprises a lifting piece, a rack and a pinion, an installation groove is formed on the A plastic part, the lifting piece is arranged above the A plastic part, the rack is arranged on the lifting piece, the rack and the pinion are arranged in the installation groove, the rack and the pinion are both provided with two, and the two racks and the two pinions are symmetrically arranged, and the rack and the pinion are engaged.

[0009] Preferably, the lifting piece comprises a lifting part and a blocking part, the two racks are arranged on the blocking part, the blocking part is arranged on the lifting part, and the size of the blocking part is the same as that of the installation groove.

[0010] Preferably, the transmission assembly comprises a transmission gear and an A output gear, the transmission gear is arranged in the mounting groove, and the transmission gear is engaged with the two fixed gears, and the A output gear is arranged on the transmission gear.

[0011] Preferably, the transmission assembly further comprises a B output gear and a motor, the motor is arranged on the lower inner wall of the mounting groove, the B output gear is arranged on the output end of the motor, and the B output gear is engaged with the A output gear.

[0012] Preferably, the mold assembly further comprises a movable mold, the movable mold comprises a movable mold part and a B plastic part, the B plastic part is arranged on the movable mold part, a rectangular groove is arranged at the center position of the B plastic part, an injection hole is arranged on the movable mold part, and the injection hole penetrates the movable mold.

[0013] Preferably, the fixed mold and the movable mold are clamped, an A lead screw is arranged on the movable mold part, an A threaded hole is arranged on the fixed mold part, and the fixed mold part and the A lead screw are threadedly connected.

[0014] Preferably, the A demolding assembly comprises a B lead screw, a handle, an eccentric part and a rotating shaft, the rotating shaft is arranged on the movable mold part, the eccentric part is eccentrically arranged on the rotating shaft, a B threaded hole is arranged on the eccentric part, the B lead screw is threadedly connected with the eccentric part, and the handle is arranged on the B lead screw.

[0015] Preferably, the A demolding assembly further comprises a ratchet wheel and a ratchet, the ratchet wheel is arranged on the rotating shaft, the ratchet is arranged on the movable mold part, and the ratchet and the ratchet wheel are clamped.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0017] When the demolding operation is performed on the produced tableware, the product can be separated from the movable mold through the A demolding assembly, then the transmission assembly is operated to drive the B demolding assembly to operate, the product can be lifted upward through the B demolding assembly, so that the product is separated from the fixed mold, and the produced product can be quickly taken out, thereby the production efficiency can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a three-dimensional structure diagram of the utility model;

[0019] Figure 2 It is a first local explosion diagram of the utility model;

[0020] Figure 3 It is a second local explosion diagram of the utility model;

[0021] Figure 4 It is a third local explosion diagram of the utility model;

[0022] Figure 5 Figure 4 is a fourth partial exploded view of the utility model;

[0023] Figure 6 Figure 3 is a partial perspective view of the utility model.

[0024] In the figure: 1, mold assembly; 11, fixed mold; 111, fixed mold part; 112, A plastic part; 12, movable mold; 121, movable mold part; 122, B plastic part; 13, A lead screw; 2, A demolding assembly; 21, B lead screw; 22, handle; 23, eccentric part; 24, rotating shaft; 25, ratchet wheel; 26, ratchet teeth; 3, B demolding assembly; 31, lifting part; 311, lifting part; 312, blocking part; 32, rack; 33, fixed gear; 4, transmission assembly; 41, transmission gear; 42, A output gear; 43, B output gear; 44, motor. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0026] Please refer to Figures 1-6 The utility model provides a kind of environment-friendly polypropylene plastic tableware mold secondary demolding structure, including mold assembly 1, A demolding assembly 2 is provided on mold assembly 1, B demolding assembly 3 and transmission assembly 4 are provided on mold assembly 1, B demolding assembly 3 and transmission assembly 4 are connected;

[0027] Wherein, mold assembly 1 includes fixed mold 11, fixed mold 11 includes fixed mold part 111 and A plastic part 112, slot is opened in fixed mold part 111, A plastic part 112 is arranged in the center position of slot;

[0028] B demolding assembly 3 includes lifting part 31, rack 32 and fixed gear 33, installation groove is opened in A plastic part 112, lifting part 31 is arranged above A plastic part 112, rack 32 is arranged on lifting part 31, rack 32 and fixed gear 33 are all arranged in installation groove, rack 32 and fixed gear 33 are all provided with two, and two rack 32 and two fixed gear 33 are symmetrically arranged, rack 32 and fixed gear 33 are engaged.

[0029] Specifically, when the produced tableware is demolded, the tableware can be separated from the movable mold 12 through the A demolding assembly 2, and then the tableware can be separated from the fixed mold 11 through the B demolding assembly 3. In specific use, the rack gear 33 can be rotated, so that the rack 32 can be moved upward. Since the rack 32 is arranged on the jacking piece 31, when the rack 32 moves, the jacking piece 31 can be driven to move upward. At this time, the product can be jacked upward through the jacking piece 31, so that the product is separated from the fixed mold 11, and then the demolding of the product can be completed.

[0030] In the embodiment, the jacking piece 31 includes a jacking part 311 and a blocking part 312. The two racks 32 are arranged on the blocking part 312, and the blocking part 312 is arranged on the jacking part 311. The size of the blocking part 312 is the same as that of the mounting groove.

[0031] Specifically, in specific use, in order to avoid that the plastic liquid enters the mounting groove during injection molding, the jacking piece 31 is arranged as two parts of the jacking part 311 and the blocking part 312. The blocking part 312 can avoid the plastic liquid from entering the mounting groove, and the jacking part 311 can be in contact with the product, so that the product can be jacked upward.

[0032] In the embodiment, the transmission assembly 4 includes a transmission gear 41 and an A output gear 42. The transmission gear 41 is arranged in the mounting groove, and the transmission gear 41 is engaged with the two rack gears 33. The A output gear 42 is arranged on the transmission gear 41.

[0033] Specifically, in use, in order to drive the two rack gears 33 to rotate, the transmission gear 41 can be engaged with the two rack gears 33. At this time, the A output gear 42 can be arranged on the transmission gear 41, so that the A output gear 42 can drive the transmission gear 41 to rotate.

[0034] In the embodiment, the transmission assembly 4 further includes a B output gear 43 and a motor 44. The motor 44 is arranged on the lower inner wall of the mounting groove, and the B output gear 43 is arranged on the output end of the motor 44. The B output gear 43 is engaged with the A output gear 42.

[0035] Specifically, in use, in order to drive the A output gear 42 to rotate, the motor 44 can be arranged in the mounting groove, and the B output gear 43 can be arranged on the motor 44. By engaging the B output gear 43 with the A output gear 42, the transmission gear 41 can be driven to rotate, and the rack gears 33 can be simultaneously driven to rotate.

[0036] In the embodiment, the mold assembly 1 further comprises a movable mold 12, the movable mold 12 comprises a movable mold part 121 and a B plastic part 122, the B plastic part 122 is arranged on the movable mold part 121, a rectangular slot is arranged at the center of the B plastic part 122, and an injection hole is arranged on the movable mold part 121 and penetrates the movable mold 12.

[0037] Specifically, in specific use, in order to be able to plasticize the product, the movable mold 12 is arranged in two parts, the B plastic part 122 is arranged on the movable mold part 121, and a rectangular slot is arranged on the B plastic part 122, and an injection hole is arranged on the movable mold part 121, and plastic liquid is injected into the device through the injection hole, thereby facilitating subsequent production.

[0038] In the embodiment, the fixed mold 11 and the movable mold 12 are clamped, the A lead screw 13 is arranged on the movable mold part 121, the A threaded hole is arranged on the fixed mold part 111, and the fixed mold part 111 and the A lead screw 13 are threadedly connected.

[0039] Specifically, in specific use, the A lead screw 13 can be arranged on the movable mold part 121, and the A lead screw 13 and the fixed mold part 111 are threadedly connected, at this time, the A lead screw 13 can be rotated, thereby driving the movable mold part 121 to move up and down, thereby facilitating the clamping of the movable mold part 121 and the fixed mold part 111 in subsequent production.

[0040] In the embodiment, the A demolding assembly 2 comprises a B lead screw 21, a handle 22, an eccentric part 23, and a rotating shaft 24, the rotating shaft 24 is arranged on the movable mold part 121, the eccentric part 23 is eccentrically arranged on the rotating shaft 24, the B threaded hole is arranged on the eccentric part 23, the B lead screw 21 is threadedly connected with the eccentric part 23, and the handle 22 is arranged on the B lead screw 21.

[0041] Specifically, in specific use, in order to separate the product from the movable mold 12, the rotating shaft 24 can be arranged on the movable mold part 121, the eccentric part 23 is eccentrically arranged on the rotating shaft 24, the B lead screw 21 is threadedly arranged on the eccentric part 23, and the handle 22 is arranged on the B lead screw 21, in use, the eccentric part 23 can be rotated, thereby arranging the B lead screw 21 above the injection hole, at this time, the B lead screw 21 can be moved downward by rotating the B lead screw 21, the B lead screw 21 is rotated into the injection hole and continues to rotate downward, thereby the product can be ejected downward by the lower end of the B lead screw 21, and the product can be demolded.

[0042] In the embodiment, the A demolding assembly 2 further comprises a ratchet wheel 25 and a ratchet tooth 26, the ratchet wheel 25 is arranged on the rotating shaft 24, the ratchet tooth 26 is arranged on the movable mold part 121, and the ratchet tooth 26 and the ratchet wheel 25 are clamped.

[0043] Specifically, in use, in order to enable eccentric member 23 not to be deflected when injection molding is performed, thereby affecting injection molding, a ratchet wheel 25 can be arranged on rotating shaft 24, and a ratchet 26 is arranged on movable mold part 121, the ratchet 26 is clamped to ratchet wheel 25, thereby avoiding deflection of eccentric member 23 at this time.

[0044] The working principle and use process of the utility model: after the production of tableware is completed, the product produced needs to be taken out from the mold assembly 1, at this time, the movable mold 12 can be first lifted to a certain height by rotating the A lead screw 13, then the A demolding assembly 2 is used, so that the product can be separated from the movable mold 12, at this time, the product is arranged on the fixed mold 11, the B demolding assembly 3 is driven to operate by operating the transmission assembly 4, the product can be lifted upwards by the B demolding assembly 3, so that the product can be separated from the fixed mold 11, at this time, the product can be taken out, thereby completing a single production operation, the above operation can be repeated subsequently, thereby repeating production.

[0045] The electronic components and modules used in the content of the utility model can be the parts commonly used in the market at present, which can realize the specific functions in the case, and the specific model and size can be selected and adjusted according to actual needs.

[0046] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A secondary demolding structure for an environmentally friendly polypropylene plastic tableware mold, characterized in that, It includes a mold assembly (1), on which an A demolding assembly (2) is provided, and on which a B demolding assembly (3) and a transmission assembly (4) are provided, and the B demolding assembly (3) and the transmission assembly (4) are connected; The mold assembly (1) includes a fixed mold (11), which includes a fixed mold part (111) and a plastic part (112). The fixed mold part (111) has a slot, and the plastic part (112) is located at the center of the slot. The B demolding assembly (3) includes a lifting member (31), a rack (32), and a fixed gear (33). An installation groove is provided on the A plastic part (112). The lifting member (31) is located above the A plastic part (112). The rack (32) is located on the lifting member (31). The rack (32) and the fixed gear (33) are both located in the installation groove. There are two racks (32) and two fixed gears (33), and the two racks (32) and the two fixed gears (33) are symmetrically arranged. The racks (32) and the fixed gears (33) mesh.

2. The secondary demolding structure for an environmentally friendly polypropylene plastic tableware mold according to claim 1, characterized in that: The lifting member (31) includes a lifting part (311) and a sealing part (312). Both racks (32) are disposed on the sealing part (312). The sealing part (312) is disposed on the lifting part (311). The size of the sealing part (312) is the same as the size of the mounting groove.

3. The secondary demolding structure for an environmentally friendly polypropylene plastic tableware mold according to claim 1, characterized in that: The transmission assembly (4) includes a transmission gear (41) and an A output gear (42). The transmission gear (41) is disposed in the mounting groove and meshes with two fixed gears (33). The A output gear (42) is disposed on the transmission gear (41).

4. The secondary demolding structure for an environmentally friendly polypropylene plastic tableware mold according to claim 3, characterized in that: The transmission assembly (4) also includes a B output gear (43) and a motor (44). The motor (44) is disposed on the inner wall of the mounting groove, and the B output gear (43) is disposed on the output end of the motor (44). The B output gear (43) meshes with the A output gear (42).

5. The secondary demolding structure for an environmentally friendly polypropylene plastic tableware mold according to claim 1, characterized in that: The mold assembly (1) further includes a movable mold (12), which includes a movable mold part (121) and a B plastic part (122). The B plastic part (122) is disposed on the movable mold part (121). A rectangular groove is provided at the center of the B plastic part (122). An injection hole is provided on the movable mold part (121) and the injection hole penetrates the movable mold (12).

6. The secondary demolding structure for an environmentally friendly polypropylene plastic tableware mold according to claim 5, characterized in that: The fixed mold (11) and the moving mold (12) are engaged. The moving mold part (121) is provided with a lead screw (13), and the fixed mold part (111) is provided with a threaded hole (A). The fixed mold part (111) and the lead screw (13) are threadedly connected.

7. The secondary demolding structure for an environmentally friendly polypropylene plastic tableware mold according to claim 5, characterized in that: The demolding assembly A (2) includes a lead screw B (21), a handle (22), an eccentric component (23), and a rotating shaft (24). The rotating shaft (24) is mounted on the moving mold part (121). The eccentric component (23) is eccentrically mounted on the rotating shaft (24). The eccentric component (23) has a threaded hole B. The lead screw B (21) is threadedly connected to the eccentric component (23). The handle (22) is mounted on the lead screw B (21).

8. The secondary demolding structure for an environmentally friendly polypropylene plastic tableware mold according to claim 7, characterized in that: The A demolding assembly (2) further includes a ratchet (25) and a ratchet tooth (26). The ratchet (25) is disposed on the rotating shaft (24), and the ratchet tooth (26) is disposed on the moving mold part (121). The ratchet tooth (26) and the ratchet (25) are engaged.