CN217293288U - Quick refrigerated hank tooth mould - Google Patents

Abstract

The application relates to a quick refrigerated hank tooth mould, including mould body and fixed mounting in this internal screw core of mould, be equipped with the coolant liquid system in the screw core, just the rotary component is established to screw core outside cover, rotary component drives the product rotation and makes product and screw core break away from when the drawing of patterns. With the direct setting of coolant liquid system in the inside of screw core and around in screw core's whole axial direction in this application, consequently the coolant liquid can directly and cool off the product uniformly, has improved the cooling rate and the cooling effect of mould.

Description

Quick refrigerated hank tooth mould

Technical Field

The application relates to a die technology, in particular to a tooth twisting die with a quick cooling function.

Background

In the molding process of injection products, products with threads need to be molded by using a threaded core.

In the related art, the threaded core needs to be rotated to be demolded. However, since the industrial production requires the repeated use of a mold including a threaded core, the mold needs to be rapidly cooled before the next product is injection-molded. Usually, a core cooling insert sleeve is additionally arranged in the threaded core, but the cooling insert sleeve is not tightly contacted with the threaded core, so that the cooling effect is poor.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects, the application provides a quick refrigerated hank tooth mould, increased stopping tooth retaining ring in this mould, and the coolant system directly sets up in the inside of screw core and runs through in screw core's whole axial direction to the cooling rate and the cooling effect of mould have been improved.

The technical scheme adopted by the application for solving the technical problem is as follows:

the utility model provides a hank tooth mould of quick cooling, includes mould body and fixed mounting in this internal screw core of mould, be equipped with the coolant liquid system in the screw core, just the screw core outside cover establishes rotating assembly, rotating assembly drives the product rotation and makes product and screw core break away from when the drawing of patterns.

Optionally, the rotating assembly comprises a retaining tooth retainer ring and a bearing, the retaining tooth retainer ring is sleeved on the outer side wall of the threaded mold core, the retaining tooth retainer ring is rotatably installed in the mold body through the bearing, and during molding, the retaining tooth retainer ring and the product are fixedly connected into a whole.

Optionally, the cooling liquid system includes a liquid inlet, a liquid outlet, and a cooling liquid pipeline communicated with the liquid inlet and the liquid outlet.

Optionally, one end of the threaded core is a threaded section for product molding, the other end of the threaded core is an unthreaded section, the liquid inlet and the liquid outlet are arranged in the unthreaded section of the threaded core, and the cooling liquid pipeline is arranged inside the threaded core and surrounds the axial direction of the threaded core.

Optionally, the coolant line surrounds an axial direction of the threaded core, including the coolant line surrounding the threaded section.

Optionally, the first cooling density is greater than or equal to the second cooling density; the first cooling density is indicative of a ratio of a length of the coolant line surrounding the threaded segment to a length of the threaded segment; the second cooling density is indicative of a ratio of a length of the coolant line surrounding the unthreaded section to a length of the unthreaded section.

Optionally, the liquid inlet and the liquid outlet are symmetrically arranged along a central axis of the threaded core, and the cooling liquid pipeline is in a spiral cavity structure inside the threaded core.

Optionally, a cooling liquid tank for storing cooling liquid is further provided, and the cooling liquid is recycled among the liquid inlet, the liquid outlet, the cooling liquid pipeline and the cooling liquid tank.

Optionally, a flow rate monitor and a flow rate control valve are arranged at the liquid inlet, and the flow rate monitor is used for accurately monitoring the flow rate of the cooling liquid and controlling the flow rate of the cooling liquid through the flow rate control valve.

Optionally, a cavity is arranged in the die body, a cavity insert is arranged at the tail of the cavity, and a cavity cooling insert for cooling the cavity is arranged in the cavity insert.

The beneficial effect of this application is: this application has add stopping tooth retaining ring in the outside of screw core, during the shaping, stopping tooth retaining ring is connected as an organic wholely with the product, during the drawing of patterns, it is rotatory for screw core to drive the product through the rotation of stopping tooth retaining ring, thereby with the product back-off screw core and accomplish the drawing of patterns, again because of screw core is motionless in drawing of patterns in-process, so this application can directly set up the coolant liquid system in screw core's inside and run through in screw core's whole axial direction, the coolant liquid can directly and evenly cool off the product, the cooling rate and the cooling effect of mould have been improved, thereby the production cycle of product has been shortened, the dimensional stability of product has been improved.

Drawings

FIG. 1 is a schematic diagram of a prior art design;

FIG. 2 is a schematic structural diagram of the present application;

in the figure: 1-core cooling insert sleeve, 2-cooling water path, 10-thread core, 20-cooling liquid system, 21-liquid inlet, 22-liquid outlet, 23-cooling liquid pipeline, 30-backstop tooth retainer ring, 31-bearing, 40-mould body, 41-mould cavity, 42-mould cavity insert, 43-mould cavity cooling insert and 50-product.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

It is noted that the terms "first," "second," and the like in the description and claims of the present application and in the following drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Example (b): as shown in fig. 2, a rapid cooling threading mold comprises a mold body 40 and a threaded core 10 fixedly installed in the mold body 40, wherein a cooling liquid system is provided in the threaded core 10, and a rotating component is sleeved outside the threaded core 10, and the rotating component drives a product 50 to rotate during demolding so as to separate the product 50 from the threaded core 10. A cavity 41 is arranged in the die body 40, a cavity insert 42 is arranged at the tail part of the cavity 41, and a cavity cooling insert 43 for cooling the cavity is arranged in the cavity insert 42.

In a possible design, as shown in fig. 1, because the threaded core needs to be rotated to be demolded, a core cooling insert sleeve 1 is usually additionally arranged inside the threaded core, and a cooling water path 2 is arranged in the cooling insert sleeve 1 to cool the threaded core, that is, only one section of cooling water path 2 can be arranged inside the threaded core, so that the cooling speed is low, the cooling is uneven, and the demolding efficiency and the demolding quality of a product are seriously affected.

And this application has add rotating assembly in threaded core's the outside, during the shaping, rotating assembly is connected as an organic wholely with product 50, during the drawing of patterns, it is rotatory for threaded core to drive the product through rotating assembly's rotation, thereby screw core is revolved out to the product left, and screw core is motionless, consequently can directly set up coolant liquid system 20 in threaded core's inside and run through in threaded core's whole axial direction (axle AA direction in figure 2), the coolant liquid can directly and evenly cool off the product, the cooling rate of mould has been improved, and the cooling effect is good, thereby the production cycle of product has been shortened, the dimensional stability of product has been improved.

Optionally, the rotating assembly includes a retaining tooth retainer 30 and a bearing 31, the retaining tooth retainer 30 is sleeved on an outer side wall of the threaded core 10, the retaining tooth retainer 30 is rotatably installed in the mold body 40 through the bearing 31, and during molding, the retaining tooth retainer 30 is fixedly connected with the product 50 into a whole. Two ends of the retaining tooth retainer 30 are respectively provided with a bearing 31, and the retaining tooth retainer 30 is arranged in the die body 40 through the two bearings 31, so that the friction between the retaining tooth retainer 30 and the die body 40 is reduced during rotation.

Optionally, the cooling fluid system 20 includes a fluid inlet 21, a fluid outlet 22, and a cooling fluid line 23 communicating with the fluid inlet 21 and the fluid outlet 22.

Alternatively, one end of the threaded core 10 is a threaded section for product molding, the other end of the threaded core 10 is an unthreaded section, the liquid inlet 21 and the liquid outlet 22 are provided in the unthreaded section of the threaded core 10, the coolant line 23 is arranged inside the threaded core 10, and the coolant line 23 surrounds the entire axial direction of the threaded core 10.

Optionally, the coolant line 23 surrounds the threaded core 10 in the axial direction, including the coolant line 23 surrounding the threaded segment. The first cooling density is greater than or equal to the second cooling density; the first cooling density is indicative of the ratio of the length of the coolant line 23 around the threaded segment to the length of the threaded segment; the second cooling density is used to indicate the ratio of the length of the coolant line 23 surrounding the unthreaded section to the length of the unthreaded section. In other words, the water path length with higher density can be designed in the threaded section, so that the quick cooling effect can be realized on the molded part of the product.

Alternatively, the liquid inlet 21 and the liquid outlet 22 are symmetrically arranged along the central axis of the threaded core 10, and the coolant pipeline 23 is in a spiral cavity structure inside the threaded core 10. The whole axial direction of the threaded core 10 is provided with the cooling liquid pipeline 23 with the spiral cavity, and in the cooling link in the injection molding process, the threaded core and the product 50 formed in the threaded section can be rapidly and uniformly cooled by low-temperature water in the cooling liquid pipeline, so that the production period of the product is shortened, and the quality of the product is improved; during injection molding, high-temperature water can be added into a cooling liquid pipeline to assist the temperature rise of the mold and realize rapid molding.

Optionally, a cooling liquid tank for storing cooling liquid is further disposed in the threading die, and the cooling liquid is recycled among the liquid inlet 21, the liquid outlet 22, the cooling liquid pipeline 23 and the cooling liquid tank. The inlet 21 is provided with a flow rate monitor and a flow rate control valve, wherein the flow rate monitor is used for accurately monitoring the flow rate of the cooling liquid and controlling the flow rate of the cooling liquid through the flow rate control valve, so that the cooling time is controlled.

The operation process using the mold shown in the application: in the cooling link of the in-process of moulding plastics, can cool off screw core and the product 50 of shaping in the screw thread section fast and evenly through the low temperature water in the coolant liquid pipeline, after the cooling is accomplished, the rotation through stopping tooth retaining ring 30 drives the product and rotates for screw core 10 to unscrew the screw core left with the product and accomplish the drawing of patterns, and screw core 10 is motionless.

It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit of the present application, and these changes and modifications are all within the scope of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. The utility model provides a quick refrigerated hank tooth mould which characterized in that: the die comprises a die body (40) and a threaded core (10) fixedly installed in the die body (40), wherein a cooling liquid system is arranged in the threaded core (10), a rotating assembly is sleeved on the outer side of the threaded core (10), and the rotating assembly drives a product (50) to rotate when the die is removed, so that the product (50) is separated from the threaded core (10).

2. The rapidly-cooled threading die of claim 1, wherein: the rotating assembly comprises a stopping tooth retainer ring (30) and a bearing (31), the stopping tooth retainer ring (30) is sleeved on the outer side wall of the threaded core (10), the stopping tooth retainer ring (30) is arranged in the die body (40) in a rotating mode through the bearing (31), and during forming, the stopping tooth retainer ring (30) is fixedly connected with the product (50) into a whole.

3. The rapidly-cooled threading die of claim 1, wherein: the cooling liquid system (20) comprises a liquid inlet (21), a liquid outlet (22) and a cooling liquid pipeline (23) communicated with the liquid inlet (21) and the liquid outlet (22).

4. The rapidly-cooled threading die of claim 3, wherein: one end of the threaded core (10) is a threaded section for product forming, the other end of the threaded core (10) is an unthreaded section, the liquid inlet (21) and the liquid outlet (22) are arranged in the unthreaded section, and the cooling liquid pipeline (23) is arranged inside the threaded core (10) and the cooling liquid pipeline (23) surrounds the axial direction of the threaded core (10).

5. The rapidly-cooled threading die of claim 4, wherein: the cooling liquid pipeline (23) surrounds the axial direction of the threaded core (10) and comprises the cooling liquid pipeline (23) which surrounds the threaded section.

6. The rapidly-cooled threading die of claim 5, wherein: the first cooling density is greater than or equal to the second cooling density; the first cooling density is indicative of a ratio of a length of the coolant line (23) around the threaded segment to a length of the threaded segment; the second cooling density is indicative of a ratio of a length of the coolant line (23) around the unthreaded section to a length of the unthreaded section.

7. The rapidly-cooled threading die of claim 4, wherein: the liquid inlet (21) and the liquid outlet (22) are symmetrically arranged along the central axis of the threaded core (10), and the cooling liquid pipeline (23) is in a spiral cavity structure inside the threaded core (10).

8. The rapidly-cooled threading die of claim 3, wherein: the cooling liquid box is used for storing cooling liquid, and the cooling liquid is circularly used among the liquid inlet (21), the liquid outlet (22), the cooling liquid pipeline (23) and the cooling liquid box.

9. The rapidly-cooled threading die of claim 3, wherein: the liquid inlet (21) is provided with a flow rate monitor and a flow rate control valve, and the flow rate monitor is used for accurately monitoring the flow rate of the cooling liquid and controlling the flow rate of the cooling liquid through the flow rate control valve.

10. The rapidly-cooled threading die of claim 1, wherein: the mould is characterized in that a cavity (41) is arranged in the mould body (40), a cavity insert (42) is arranged at the tail part of the cavity (41), and a cavity cooling insert (43) for cooling the cavity is arranged in the cavity insert (42).

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