Non-communicated medium-large multi-cavity injection mold

Abstract

The utility model relates to the technical field of injection molds, and discloses a non-communicated medium-large-sized multi-cavity injection mold, which comprises a multi-cavity mold and an injection molding pipeline, the end part of the injection molding pipeline is communicated with a shunting frame, the outside of the shunting frame is connected with a plurality of adjusting runners through pipelines, and the adjusting runners are communicated with the multi-cavity mold. A plurality of injection pipelines are arranged outside the multi-cavity mold, the number of the injection pipelines is consistent with that of the adjusting flow channels, the injection pipelines and the adjusting flow channels are correspondingly connected, and adjusting push rods with the telescopic ends located in the adjusting flow channels are fixedly installed outside the adjusting flow channels; the telescopic end of the adjusting push rod is connected with an adjusting block which is sealed with the interior of the adjusting flow channel and extends to the communicating point position of the flow dividing frame and the adjusting flow channel, and the other end of the adjusting flow channel is provided with an injection pipeline connected with the multi-cavity mold. The non-communicated middle-large-sized multi-cavity injection mold has the advantage that the injection molding pressure can be conveniently and flexibly distributed so as to improve the injection molding efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection mold technical field, concretely is a large -scale multi -cavity injection mold of not intercommunication. BACKGROUND

[0002] A large -scale multi -cavity injection mold of not intercommunication is a mold for injection molding, and is characterized by having multiple cavities, but the cavities are not interconnected. This mold is usually large in size and is suitable for producing medium and large plastic products. It can simultaneously form multiple products in one injection molding process, improving production efficiency. However, since the cavities are not interconnected, the injection molding conditions and product quality of each cavity need to be controlled and guaranteed separately.

[0003] The existing large -scale multi -cavity injection mold of not intercommunication has different cavity sizes, resulting in differences in injection efficiency of each cavity. To ensure normal injection, the largest cavity needs to be injected, which is inefficient for large -scale production. Therefore, a large -scale multi -cavity injection mold of not intercommunication is proposed to solve the above problems. SUMMARY

[0004] (I) Technical problem solved

[0005] To overcome the shortcomings of the prior art, the utility model provides a large -scale multi -cavity injection mold of not intercommunication, which has the advantages of flexible distribution of injection pressure to increase injection efficiency.

[0006] (II) Technical solution

[0007] The technical solution of the utility model to solve the above technical problems is as follows: a large -scale multi -cavity injection mold of not intercommunication, comprising a multi -cavity mold and an injection pipe, the end of the injection pipe is connected with a shunt frame, the outside of the shunt frame is connected with an adjusting flow channel through a pipe, the adjusting flow channel is fixedly installed with an adjusting push rod whose telescopic end is located inside, the telescopic end of the adjusting push rod is connected with an adjusting block which forms a seal with the inside of the adjusting flow channel and extends to the communication point of the shunt frame and the adjusting flow channel, the other end of the adjusting flow channel is provided with an injection pipe connected with the multi -cavity mold, and the outside of the adjusting flow channel is connected with a progress sensing assembly for detecting the injection progress.

[0008] The utility model has the advantages of flexible distribution of injection pressure to increase injection efficiency.

[0009] The large -scale multi -cavity injection mold of not intercommunication has the advantages of flexible distribution of injection pressure to increase injection efficiency.

[0010] On the basis of the above technical solutions, the utility model further can make improvement as follows.

[0011] Further, the number of the adjusting flow channels is multiple, the outside of the multi-cavity mold is provided with multiple injection pipelines, the number of the injection pipelines is consistent with the number of the adjusting flow channels and is connected respectively.

[0012] Further, it further includes a general controller, the general controller accepts time data feedback at the progress sensing assembly, and the general controller controls the pushing distance of the adjusting push rod.

[0013] The beneficial effect of the above further scheme is that the efficiency of the injection of the injection melt into the injection pipeline can be adjusted by adjusting the pushing distance of the adjusting push rod, so that the pressure in the flow distribution frame can be effectively distributed.

[0014] Further, the progress sensing assembly includes a sensing sleeve in communication with the adjusting flow channel, a pressure sensor is fixedly installed on the inner wall of the sensing sleeve, the other end of the pressure sensor is fixedly connected with a spring, the other end of the spring is fixedly connected with a sealing transmission member extending to the outside of the sensing sleeve, and a reset push rod with a telescopic end towards the end of the sealing transmission member is fixedly installed on the outside of the sensing sleeve.

[0015] The beneficial effect of the above further scheme is that the current injection state can be judged by the pressure sensor of the progress sensing assembly, and when the pressure increases to the limit and is constant, it is judged that the cavity injection is completed.

[0016] Further, the sealing transmission member is composed of a connecting rod and a sealing plate, and a heat-resistant sealing ring is fixedly arranged on the outside of the sealing plate and extruded against the inner wall of the sensing sleeve.

[0017] Further, the progress sensing assembly further includes a locking cylinder fixed to the outside of the sensing sleeve, and a limiting piece extending to the inside of the connecting rod is fixedly connected to the telescopic end of the locking cylinder.

[0018] The beneficial effect of the above further scheme is that the connecting rod can be limited by the limiting piece by setting the locking cylinder and the limiting piece, and the reset push rod does not need to bear the main supporting capacity. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic view of the utility model;

[0020] Figure 2 It is an enlarged view of A in the drawing of the utility model;

[0021] Figure 3 It is a connecting view of the sensing sleeve and the locking cylinder of the utility model;

[0022] Figure 4The utility model discloses a side view of injection pipeline and shunt frame connection.

[0023] In the drawing: 1, multi-cavity mold; 2, injection pipeline; 3, shunt frame; 4, adjusting runner; 5, adjusting push rod; 6, adjusting block; 7, injection pipeline; 8, progress sensing assembly; 81, sensing sleeve; 82, pressure sensor; 83, spring; 84, sealing transmission part; 85, reset push rod; 86, locking cylinder; 87, limiting piece. DETAILED DESCRIPTION

[0024] 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, not 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 the utility model.

[0025] In the embodiments, the injection pipeline 2 is connected with the shunt frame 3, Figures 1-4 The utility model discloses a large multi-cavity injection mold in no intercommunication, the utility model discloses a multi-cavity mold 1 and injection pipeline 2, its characterized in that: the end of injection pipeline 2 is connected with shunt frame 3, the outside of shunt frame 3 is connected with adjusting runner 4 through pipeline, the outside of adjusting runner 4 is fixedly installed with adjusting push rod 5 of telescopic end in its inside, the telescopic end of adjusting push rod 5 is connected with adjusting block 6 that forms the seal with adjusting runner 4 inside and extends to the communication point position of shunt frame 3 and adjusting runner 4, the other end of adjusting runner 4 is provided with injection pipeline 7 connected with multi-cavity mold 1, the outside of adjusting runner 4 is connected with progress sensing assembly 8 that detects the injection progress.

[0026] Further, the number of adjusting runner 4 is multiple, the outside of multi-cavity mold 1 is provided with multiple injection pipeline 7, and the number of injection pipeline 7 is consistent with the number of adjusting runner 4 and is connected respectively.

[0027] Further, it further includes general controller, and general controller accepts the time data of feedback at progress sensing assembly 8, and general controller controls the driving distance of adjusting push rod 5.

[0028] When injection, the time data of all progress sensing assembly 8 are collected by general controller, so that the time spent when all cavities are injected completely can be judged, and adjusting push rod 5 is driven to push adjusting block 6, so that the communication point position of adjusting runner 4 and shunt frame 3 is partially shielded or released, so that the efficiency of melt when passing through the place is adjusted.

[0029] Further, the progress sensing assembly 8 comprises a sensing sleeve 81 in communication with the adjusting flow channel 4, the inner wall of the sensing sleeve 81 is fixedly installed with a pressure sensor 82, the other end of the pressure sensor 82 is fixedly connected with a spring 83, the other end of the spring 83 is fixedly connected with a sealing transmission member 84 extending to the outside of the sensing sleeve 81, and the outside of the sensing sleeve 81 is fixedly installed with a reset push rod 85 with the telescopic end facing the end of the sealing transmission member 84.

[0030] Further, the sealing transmission member 84 is composed of a connecting rod and a sealing plate, and the outer side of the sealing plate is fixedly provided with a heat-resistant sealing ring extruded against the inner wall of the sensing sleeve 81.

[0031] When the injection molding in the mold cavity is completed, the pressure generated by the melt pushes the sealing transmission member 84 to make the spring 83 compressed, and at the same time, the pressure is transmitted to the pressure sensor 82, so that the time spent for injection molding can be judged by the abnormal increase of the pressure, and after the injection molding is completed, the melt in the sensing sleeve 81 can be pushed out by the reset push rod 85 cooperating with the spring 83 before cooling starts, which is convenient for subsequent injection molding.

[0032] Further, the progress sensing assembly 8 further comprises a locking cylinder 86 fixed to the outside of the sensing sleeve 81, and the telescopic end of the locking cylinder 86 is fixedly connected with a limiting piece 87 extending to the inside of the connecting rod.

[0033] In particular, when adjusting the injection molding efficiency, the locking cylinder 86 controls the limiting piece 87 to move without being connected with the connecting rod, and after the injection molding efficiency of each pipeline is determined, the connecting rod is clamped by the limiting piece 87, at this time, the sealing transmission member 84 blocks the end of the sensing sleeve 81, so that the injection molding efficiency is completely fixed.

[0034] Working principle:

[0035] The melt reaches the distribution frame 3 from the injection molding pipeline 2, and after being distributed by the distribution frame 3, it reaches the inside of the multi-cavity mold 1 through the adjusting flow channel 4, and the injection molding in the cavity is completed, after the injection molding is completed, the progress sensing assembly 8 is triggered, so as to record the injection molding time of the current cavity, after all the time records are completed, the adjusting push rod 5 can be adjusted by the total controller to adjust the injection molding efficiency of each cavity, after the first adjustment is completed, the second injection molding should be adjusted again, and the most balanced injection molding efficiency can be obtained.

[0036] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and implementations, it is to be understood that the terminology used is for the purpose of descriptive clarity and that it is intended to be limited only by the words recited in the appended claims. The scope of the present application shall be limited only by the claims.

[0037] While the embodiments of the present application have been shown and described with respect to particular embodiments thereof, it will be understood by those skilled in the art that various changes in form and details can be made therein without departing from the spirit and scope of the application. Therefore, the scope of the application should not be limited by the embodiments, but should be defined only in accordance with the following claims and their equivalents.

Claims

1. A non-communicating large-to-medium-sized multi-cavity injection mold comprising a multi-cavity mold (1) and an injection duct (2), characterized in that: The end of the injection pipe (2) is communicated with a shunt frame (3), the outside of the shunt frame (3) is connected with an adjusting flow channel (4) through a pipe, the outside of the adjusting flow channel (4) is fixedly installed with an adjusting push rod (5) with a telescopic end inside it, the telescopic end of the adjusting push rod (5) is connected with an adjusting block (6) which forms a seal inside the adjusting flow channel (4) and extends to the point where the shunt frame (3) and the adjusting flow channel (4) communicate, the other end of the adjusting flow channel (4) is provided with an injection pipe (7) connected with the multi-cavity mold (1), the outside of the adjusting flow channel (4) is communicated with a progress sensing assembly (8) for detecting the injection progress.

2. A multi-cavity injection mold according to claim 1, wherein: The number of the adjusting flow channels (4) is multiple, the outside of the multi-cavity mold (1) is provided with multiple injection pipes (7), the number of the injection pipes (7) is consistent with the number of the adjusting flow channels (4) and respectively corresponds to the connection.

3. The multi-cavity injection mold according to claim 1, wherein: It also includes a general controller which accepts the time data fed back at the progress sensing assembly (8), and controls the pushing distance of the adjusting push rod (5).

4. The multi-cavity injection mold according to claim 1, wherein: The progress sensing assembly (8) includes a sensing sleeve (81) communicated with the adjusting flow channel (4), the inner wall of the sensing sleeve (81) is fixedly installed with a pressure sensor (82), the other end of the pressure sensor (82) is fixedly connected with a spring (83), the other end of the spring (83) is fixedly connected with a sealing transmission member (84) extending to the outside of the sensing sleeve (81), the outside of the sensing sleeve (81) is fixedly installed with a reset push rod (85) with a telescopic end towards the end of the sealing transmission member (84).

5. A multi-cavity injection mold according to claim 4, wherein: The sealing transmission member (84) is composed of a connecting rod and a sealing plate, the outer side of the sealing plate is fixedly provided with a heat-resistant sealing ring extruded with the inner wall of the sensing sleeve (81).

6. The large multi-cavity injection mold without connection according to claim 5, wherein: The progress sensing assembly (8) further includes a locking cylinder (86) fixed to the outside of the sensing sleeve (81), The telescopic end of the locking cylinder is fixedly connected with a limiting piece (87) extending to the inside of the connecting rod.

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