CN219360197U

CN219360197U - Cup cover forming die

Info

Publication number: CN219360197U
Application number: CN202320366760.9U
Authority: CN
Inventors: 吴宝才
Original assignee: Zhongshan Jianfeng Electronic Technology Co ltd
Current assignee: Zhongshan Jianfeng Electronic Technology Co ltd
Priority date: 2023-03-02
Filing date: 2023-03-02
Publication date: 2023-07-18
Anticipated expiration: 2033-03-02

Abstract

The utility model provides a water cup cover forming die which comprises a front die assembly, a front die core, a rear die core and a rear die assembly, wherein a first forming piece for forming the shape of a water cup cover is inlaid on the front die core, a second forming piece is inlaid on the rear die core, a thread forming part for forming threads of the water cup cover is arranged on the second forming piece, a driving assembly for driving the second forming piece to rotate is arranged on the rear die assembly, and an ejector rod is arranged in the middle of the second forming piece. The utility model has the advantages of convenient manufacture of the cup cover, convenient demoulding and the like.

Description

Cup cover forming die

Technical Field

The utility model relates to the field of molds, in particular to a cup cover forming mold.

Background

The mold is an important production tool for plastic parts due to the characteristics of short molding cycle, high production efficiency and the like. Plastic cup lids are typically formed by a mold. However, because the shape of the water cup cover is complex, and the water cup cover is also provided with threads connected with the water cup body, how to ensure the demolding quality after the water cup cover is molded by the existing mold becomes a difficult problem in the industry. In view of this, a cup lid molding die was developed.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art.

The utility model provides a water cup cover forming die which comprises a front die assembly, a front die core, a rear die core and a rear die assembly, wherein a first forming piece for forming the shape of a water cup cover is inlaid on the front die core, a second forming piece is inlaid on the rear die core, a thread forming part for forming threads of the water cup cover is arranged on the second forming piece, a driving assembly for driving the second forming piece to rotate is arranged on the rear die assembly, and an ejector rod is arranged in the middle of the second forming piece.

According to some embodiments of the utility model, the driving assembly comprises an oil cylinder, a connecting block, a rack and a transmission shaft, wherein a power output end of the oil cylinder is connected with the connecting block, the connecting block is connected with the rack, and the rack is in transmission connection with the second forming part through the transmission shaft.

According to some embodiments of the utility model, the drive shaft is provided with a first gear and a second gear, the first gear being in mesh with the rack, the second molded part being provided with a tooth-shaped portion, the tooth-shaped portion being in mesh with the second gear.

According to some embodiments of the utility model, the upper part of the second gear is provided with a bearing.

According to some embodiments of the utility model, the rear module comprises a rear template, and a receiving groove for receiving the rack, a first receiving space for receiving the second gear, and a second receiving space for receiving the tooth part are arranged at the bottom of the rear template.

According to some embodiments of the utility model, a mounting frame is provided on one side of the cylinder, and the cylinder is mounted on the mounting frame.

According to some embodiments of the utility model, a travel limit switch is arranged on the mounting frame, and a bump capable of triggering the travel limit switch is arranged on the connecting block.

According to some embodiments of the utility model, the mounting frame is provided with a sliding groove, and the connecting block is provided with a sliding protrusion.

According to some embodiments of the utility model, the connecting block is provided with a connecting groove, and the rack is provided with a connecting protrusion matched with the connecting groove.

The utility model has at least the following technical effects:

1. according to the water cup cover forming die, the water cup cover is formed through the first forming piece and the second forming piece, the second forming piece is driven to rotate through the driving assembly, and meanwhile, the ejection rod ejects the water cup cover, so that threads on the water cup cover are separated from thread forming parts of the second forming piece, the water cup cover is completely demoulded, the demoulding quality of the water cup cover is guaranteed, and the quality of the water cup cover after the threads are demoulded is better.

2. The water cup cover forming die provided by the embodiment of the utility model has the advantages that the rear die assembly comprises the rear die plate, the bottom of the rear die plate is provided with the accommodating groove for accommodating the rack, the first accommodating space for accommodating the second gear and the second accommodating space for accommodating the tooth-shaped part, so that the installation space is saved, and the die volume is smaller.

Drawings

FIG. 1 is an overall schematic of an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a front mold assembly and front mold insert combination according to an embodiment of the present utility model;

FIG. 3 is a schematic view showing a rear mold assembly and a rear mold insert assembly according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram of a back template according to an embodiment of the present utility model;

FIG. 5 is a schematic illustration of a portion of a rear module assembly according to one embodiment of the present utility model;

FIG. 6 is a schematic view of a connection block according to an embodiment of the present utility model;

FIG. 7 is a schematic view of a mounting bracket according to an embodiment of the present utility model;

fig. 8 is a schematic view of a rack according to an embodiment of the present utility model.

Reference numerals: the mold assembly includes a front mold assembly 100, a front mold 200, a rear mold 300, a rear mold 400, a rear mold 410, a receiving slot 411, a first receiving space 412, a second receiving space 413, a first molding member 500, a second molding member 600, a screw molding portion 610, a tooth portion 620, a driving assembly 700, an oil cylinder 710, a connection block 720, a protrusion 721, a sliding protrusion 722, a connection slot 723, a rack 730, a connection protrusion 731, a transmission shaft 740, a first gear 741, a second gear 742, a bearing 743, an ejector rod 800, a mounting bracket 900, a stroke limit switch 910, and a sliding slot 920.

Detailed Description

The following description is provided with reference to the accompanying drawings to assist in a comprehensive understanding of various embodiments of the disclosure as defined in the claims and their equivalents. The description includes various specific details to aid in understanding, but these details should be regarded as merely exemplary. Accordingly, one of ordinary skill in the art will recognize that various changes and modifications of the various embodiments described herein can be made without departing from the scope and spirit of the present disclosure. In addition, descriptions of well-known functions and constructions may be omitted for clarity and conciseness.

The terms and words used in the following description and claims are not limited to literal meanings, but are only used by the inventors to enable a clear and consistent understanding of the disclosure. Thus, it will be apparent to those skilled in the art that the following descriptions of the various embodiments of the present disclosure are provided for illustration only and not for the purpose of limiting the disclosure as defined by the appended claims and their equivalents.

It is to be understood that the singular form "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to "a component surface" includes reference to one or more such surfaces.

The terms "having," "can have," "including," or "can include" as used in various embodiments of the present disclosure indicate the presence of a corresponding function, operation, element or the like disclosed, but are not limited to additional one or more functions, operations, elements or the like.

Furthermore, it should be understood that the terms "comprises" or "comprising," when used in various embodiments of the present disclosure, are intended to specify the presence of stated features, integers, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, operations, elements, components, or groups thereof.

As shown in fig. 1 to 8, the present utility model provides a cup cover forming mold, which comprises a front mold assembly 100, a front mold core 200, a rear mold core 300 and a rear mold assembly 400, wherein a first forming member 500 for forming a cup cover shape is embedded on the front mold core 200, a second forming member 600 is embedded on the rear mold core 300, a thread forming portion 610 for forming a cup cover thread is arranged on the second forming member 600, a driving assembly 700 for driving the second forming member 600 to rotate is arranged on the rear mold assembly 400, and an ejector rod 800 is arranged in the middle of the second forming member 600. In the utility model, the shape of the cup cover is formed by the first forming piece 500 and the second forming piece 600, when in demolding, the front mold assembly 100 and the front mold core 200 are separated from the rear mold core 300 and the rear mold assembly 400, then the second forming piece 600 is driven to rotate by the driving assembly 700, and meanwhile, the cup cover is ejected by the ejector rod 800, so that the threads on the cup cover are separated from the thread forming part 610 of the second forming piece 600, and the demolding of the cup cover is completed. The demolding process is favorable for guaranteeing the demolding quality of the water cup cover, so that the quality of the water cup cover after the threads are demolded is better.

In some embodiments, the driving assembly 700 includes an oil cylinder 710, a connection block 720, a rack 730, and a transmission shaft 740, a power output end of the oil cylinder 710 is connected with the connection block 720, the connection block 720 is connected with the rack 730, and the rack 730 is in driving connection with the second molding 600 through the transmission shaft 740. Specifically, the oil cylinder 710 drives the rack 730 and the transmission shaft 740 to act, so as to drive the second molding member 600 to rotate, so that the threads on the cup cover are separated from the thread molding portion 610 of the second molding member 600, and the molding quality of the threads on the cup cover is ensured.

In some embodiments, the transmission shaft 740 is provided with a first gear 741 and a second gear 742, the first gear 741 is engaged with the rack 730, the second molding 600 is provided with a tooth 620, and the tooth 620 is engaged with the second gear 742. The rack 730 is engaged with the first gear 741 and the second gear 742 is engaged with the tooth 620, so that the thread forming section 610 is disengaged from the cup cover when the rack 730 is moved. Specifically, the number of the second molding members 600 is two, and the second gear 742 is engaged with the tooth portions 620 of both the second molding members 600.

In some embodiments, to reduce mechanical transmission loss of the transmission shaft 740, and to ensure the demolding quality of the cup cover, a bearing 743 is provided at the upper portion of the second gear 742.

In some embodiments, in order to save installation space and make the mold smaller, the rear mold assembly 400 includes a rear mold plate 410, and the bottom of the rear mold plate 410 is provided with a receiving slot 411 for receiving the rack 730, a first receiving space 412 for receiving the second gear 742, and a second receiving space 413 for receiving the tooth 620.

In some embodiments, a mounting frame 900 is provided on one side of the cylinder 710, and the cylinder 710 is mounted on the mounting frame 900. The mounting frame 900 provides a mounting space for the cylinder 710 for the convenience of mounting the cylinder 710.

In some embodiments, the mounting frame 900 is provided with a travel limit switch 910, and the connection block 720 is provided with a bump 721 that can trigger the travel limit switch 910. The travel limit switch 910 is used to limit the travel of the cylinder 710. When the bump 721 contacts one of the travel limit switches 910, it indicates that demolding of the cup lid is completed; when the tab 721 contacts another travel limit switch 910, indicating that the mold is closed in place, injection may begin.

In some embodiments, to ensure stability of the connection block 720 during movement, and further ensure molding quality, a sliding groove 920 is provided on the mounting frame 900, and a sliding protrusion 722 is provided on the connection block 720.

In some embodiments, in order to facilitate connection of the connection block 720 with the rack 730, a connection groove 723 is provided on the connection block 720, and a connection protrusion 731 matching the connection groove 723 is provided on the rack 730.

The foregoing is a further detailed description of the utility model in connection with specific embodiments, and it is not intended that the utility model be limited to such description. It will be apparent to those skilled in the art that several simple deductions or substitutions can be made without departing from the spirit of the utility model.

Claims

1. Cup lid forming die, its characterized in that: including front mould subassembly (100), front mould benevolence (200), back mould benevolence (300) and back mould subassembly (400), inlay on front mould benevolence (200) have first shaping piece (500) that are used for shaping bowl cover shape, inlay on back mould benevolence (300) have second shaping piece (600), be provided with on second shaping piece (600) be used for shaping bowl cover screw thread shaping portion (610), be provided with on back mould subassembly (400) and drive second shaping piece (600) pivoted drive assembly (700), the centre of second shaping piece (600) is provided with ejector pin (800).

2. The water cup lid molding die according to claim 1, wherein: the driving assembly (700) comprises an oil cylinder (710), a connecting block (720), a rack (730) and a transmission shaft (740), wherein the power output end of the oil cylinder (710) is connected with the connecting block (720), the connecting block (720) is connected with the rack (730), and the rack (730) is in transmission connection with the second forming part (600) through the transmission shaft (740).

3. The water cup lid molding die according to claim 2, wherein: the transmission shaft (740) is provided with a first gear (741) and a second gear (742), the first gear (741) is meshed with the rack (730), the second molding member (600) is provided with a tooth-shaped portion (620), and the tooth-shaped portion (620) is meshed with the second gear (742).

4. A water cup lid forming mold according to claim 3, wherein: a bearing (743) is provided at the upper part of the second gear (742).

5. A water cup lid forming mold according to claim 3, wherein: the rear module (400) comprises a rear template (410), wherein a containing groove (411) for containing the rack (730), a first containing space (412) for containing the second gear (742) and a second containing space (413) for containing the tooth-shaped part (620) are arranged at the bottom of the rear template (410).

6. The water cup lid molding die according to claim 2, wherein: one side of the oil cylinder (710) is provided with a mounting frame (900), and the oil cylinder (710) is mounted on the mounting frame (900).

7. The water cup lid molding die according to claim 6, wherein: the mounting frame (900) is provided with a travel limit switch (910), and the connecting block (720) is provided with a bump (721) capable of triggering the travel limit switch (910).

8. The water cup lid molding die according to claim 7, wherein: the mounting frame (900) is provided with a sliding groove (920), and the connecting block (720) is provided with a sliding protrusion (722).

9. The water cup lid molding die according to claim 6, wherein: a connecting groove (723) is formed in the connecting block (720), and a connecting protrusion (731) matched with the connecting groove (723) is arranged on the rack (730).