Demolding mechanism of plastic mold

By introducing a telescopic cylinder, pressure sensor, and temperature sensor into the plastic mold, the problem of inaccurate control of the demolding timing of the plastic mold was solved, achieving precise demolding and rapid molding, thereby improving product quality and production efficiency.

CN223520117UActive Publication Date: 2025-11-07ZHAOQING QIANGHONG PLASTIC MOLD CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422935728.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-28
Publication Date
2025-11-07
Estimated Expiration
2034-11-28

AI Technical Summary

Technical Problem

Existing plastic molds make it difficult to precisely control the demolding timing, leading to difficulties in demolding when the temperature is too high or too low, which can easily cause product damage.

Method used

The demolding mechanism, which uses a telescopic cylinder, pressure sensor, and temperature sensor, achieves precise demolding by monitoring the product temperature in real time and controlling the movement of the support plate and heat-conducting plate. It also accelerates product cooling through a ring-shaped conduit and water pipe system.

Benefits of technology

It achieves precise demolding at the optimal temperature, preventing product damage, accelerating product molding speed, and improving processing efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223520117U_ABST
    Figure CN223520117U_ABST
Patent Text Reader

Abstract

The utility model discloses a demolding mechanism of a plastic mold, and relates to the technical field of plastic molds. The demolding mechanism of the plastic mold comprises a mold body, the bottom of the mold body is fixedly connected with a supporting frame, the interior of the supporting frame is fixedly connected with a telescopic air cylinder, the top end of the telescopic air cylinder is fixedly connected with a first pressure sensor, the top of the first pressure sensor is fixedly connected with a supporting plate, and the upper surface of the supporting plate is fixedly connected with a heat conduction plate; a temperature sensor is fixedly connected into the heat conducting plate, a sealing sleeve is fixedly connected to the outer surface of the heat conducting plate, an internal groove is formed in the bottom of the inner surface of the mold body, a second pressure sensor is fixedly connected to the bottom of the inner surface of the internal groove, and an annular guide pipe and a communicating pipe are fixedly connected into the mold body; the outer surface of the annular guide pipe is fixedly connected with a water inlet pipe and a water outlet pipe, accurate demolding is achieved, and the product can be prevented from being damaged during demolding through demolding at the optimal temperature.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plastic mould, concretely is a demoulding mechanism of plastic mould. BACKGROUND

[0002] Injection molding, also known as injection molding, is a plastic processing method, which injects molten plastic material into a mold through an injection molding machine, and obtains a product of the required shape after cooling and solidification. Mold demolding refers to the process of taking the molded plastic product out of the mold. Demolding is an important step in plastic processing. The existing plastic mold needs to wait until the temperature of the product decreases to a suitable temperature value before demolding. The existing demolding mechanism is difficult to accurately control the timing of demolding. Too high or too low temperature will cause demolding difficulty, which may damage the product and affect subsequent processing. SUMMARY

[0003] In view of the deficiencies of the prior art, the utility model provides a demolding mechanism of plastic mold to solve the problems in the background art.

[0004] To achieve the above purpose, the utility model realizes the following technical scheme: a demolding mechanism of plastic mold, comprising a mold body, the bottom of the mold body is fixedly connected with a support frame, the inside of the support frame is fixedly connected with a telescopic cylinder, the top end of the telescopic cylinder is fixedly connected with a first pressure sensor, the top of the first pressure sensor is fixedly connected with a support plate, the upper surface of the support plate is fixedly connected with a heat conduction plate, the inside of the heat conduction plate is fixedly connected with a temperature sensor, the outer surface of the heat conduction plate is fixedly connected with a sealing sleeve, the bottom of the inner surface of the mold body is provided with an inner groove, the bottom of the inner surface of the inner groove is fixedly connected with a second pressure sensor, the inside of the mold body is fixedly connected with an annular conduit and a communication pipe, the outer surface of the annular conduit is fixedly connected with a water inlet pipe and a water outlet pipe.

[0005] Preferably, the bottom of the mold body is provided with a through hole, the inside of the through hole is communicated with the inside of the inner groove, and the outer surface of the telescopic cylinder penetrates the through hole.

[0006] Preferably, the outer surfaces of the support plate and the sealing sleeve are matched with the inner surface of the inner groove.

[0007] Preferably, the first pressure sensor, the temperature sensor and the second pressure sensor are electrically connected with the telescopic cylinder.

[0008] Preferably, the number of annular conduits is several, the several annular conduits are connected through the communication pipe, and the inside of the annular conduit is communicated with the inside of the communication pipe.

[0009] Preferably, the outer surface of the water inlet pipe and the water outlet pipe extends through the mold body and extends to the outside, the end of the water inlet pipe is fixedly connected with a water inlet joint, and the end of the water outlet pipe is fixedly connected with a water outlet joint.

[0010] Advantages

[0011] The utility model provides a demolding mechanism of plastic mold.

[0012] (1), the demolding mechanism of plastic mold, through the cooperation between telescopic cylinder, first pressure sensor, support plate, heat conducting plate, temperature sensor and second pressure sensor, when temperature sensor detects that the product temperature reaches the suitable temperature of demolding, makes telescopic cylinder elongation and cooperates support plate and heat conducting plate and ejects the product of forming, and first pressure sensor is used for controlling the strength when ejecting, and then through second pressure sensor and telescopic cylinder, support plate and heat conducting plate return to the original position, realize accurate demolding, and can prevent product damage when demolding through demolding at the optimum temperature.

[0013] (2), the demolding mechanism of plastic mold, through the cooperation between annular conduit, communication pipe, water inlet pipe and water outlet pipe, can accelerate cooling when product forming, thereby accelerating the forming speed of product, so as to improve processing efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the overall structure schematic view of the utility model;

[0015] Figure 2 It is the overall sectional structure schematic view of the utility model;

[0016] Figure 3 It is the enlarged structure schematic view of A of the utility model;

[0017] Figure 4 It is the structure schematic view of annular conduit of the utility model.

[0018] In the drawing: 1, mold body;2, support frame;3, telescopic cylinder;4, first pressure sensor;5, support plate;6, heat conducting plate;7, temperature sensor;8, sealing sleeve;9, inner groove;10, second pressure sensor;11, annular conduit;12, communication pipe;13, water inlet pipe;14, water inlet joint;15, water outlet pipe;16, water outlet joint;17, through hole. DETAILED DESCRIPTION

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1:

[0021] like Figures 1-4 As shown, this utility model provides a demolding mechanism for a plastic mold, including a mold body 1, a support frame 2 fixedly connected to the bottom of the mold body 1, a telescopic cylinder 3 fixedly connected inside the support frame 2, a first pressure sensor 4 fixedly connected to the top of the telescopic cylinder 3, a support plate 5 fixedly connected to the top of the first pressure sensor 4, a heat-conducting plate 6 fixedly connected to the upper surface of the support plate 5, a temperature sensor 7 fixedly connected inside the heat-conducting plate 6, a sealing sleeve 8 fixedly connected to the outer surface of the heat-conducting plate 6, an inner groove 9 provided at the bottom of the inner surface of the mold body 1, a second pressure sensor 10 fixedly connected to the bottom of the inner surface of the inner groove 9, an annular conduit 11 and a connecting pipe 12 fixedly connected inside the mold body 1, and an inlet pipe 13 and an outlet pipe 15 fixedly connected to the outer surface of the annular conduit 11.

[0022] Specifically, a through hole 17 is provided at the bottom of the mold body 1. The interior of the through hole 17 is connected to the interior of the inner groove 9, and the outer surface of the telescopic cylinder 3 passes through the through hole 17.

[0023] Specifically, the outer surfaces of the support plate 5 and the sealing sleeve 8 are adapted to the inner surface of the internal groove 9.

[0024] Specifically, the first pressure sensor 4, the temperature sensor 7, and the second pressure sensor 10 are all electrically connected to the telescopic cylinder 3.

[0025] Specifically, there are several annular conduits 11, which are connected to each other by a connecting pipe 12, and the interior of the annular conduits 11 is connected to the interior of the connecting pipe 12.

[0026] Specifically, the outer surfaces of the inlet pipe 13 and the outlet pipe 15 penetrate the mold body 1 and extend to the outside. The end of the inlet pipe 13 is fixedly connected to the inlet connector 14, and the end of the outlet pipe 15 is fixedly connected to the outlet connector 16.

[0027] The working principle and beneficial effects of the above embodiments.

[0028] In use, the product is in the mold body 1 during the process of waiting for molding, the water inlet joint 14 is connected with cold water, the water outlet joint 16 is connected with a drain pipe, the cold water enters the uppermost annular pipe 11 from the water inlet pipe 13, and then enters the lower annular pipe 11 through the communication pipe 12, and finally is discharged from the water outlet pipe 15 on the lowermost annular pipe 11, so that the heat on the mold body 1 is taken away by the water flow in the annular pipe 11, thereby accelerating the molding speed of the product, the heat conducting plate 6 is made of a material with good heat conductivity, the heat of the product is transmitted to the temperature sensor 7 through the heat conducting plate 6, the temperature of the product is monitored in real time by the temperature sensor 7, when the temperature of the product is detected to be reduced to a suitable temperature that can be demolded, the temperature sensor 7 immediately transmits a signal to the telescopic air cylinder 3, so that the telescopic air cylinder 3 is elongated, the supporting plate 5 and the heat conducting plate 6 are driven to move upward, thereby lifting the product to realize demolding, the first pressure sensor 4 monitors the lifting force in real time during the process of lifting the product, so as to control the telescopic air cylinder 3 to lift out the product at a suitable speed and force, after the product is lifted out, the telescopic air cylinder 3 is shortened until the bottom of the supporting plate 5 contacts the second pressure sensor 10, after the second pressure sensor 10 detects the pressure signal, the signal is transmitted to the telescopic air cylinder 3, so that the telescopic air cylinder 3 stops, at this time, the top of the heat conducting plate 6 is flush with the top of the inner groove 9, and is ready for the next demolding, the sealing sleeve 8 can prevent the injection molding material from entering the inner groove 9.

[0029] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, inclusion of an element in a list of elements does not exclude other identical elements not expressly listed.

[0030] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A demolding mechanism for a plastic mold comprising a mold body (1), characterized in that: The bottom of the mold body (1) is fixedly connected with a support frame (2), the inside of the support frame (2) is fixedly connected with a telescopic cylinder (3), the top end of the telescopic cylinder (3) is fixedly connected with a first pressure sensor (4), the top of the first pressure sensor (4) is fixedly connected with a support plate (5), the upper surface of the support plate (5) is fixedly connected with a heat conduction plate (6), the inside of the heat conduction plate (6) is fixedly connected with a temperature sensor (7), the outer surface of the heat conduction plate (6) is fixedly connected with a sealing sleeve (8), the bottom of the inner surface of the mold body (1) is provided with an inner groove (9), the bottom of the inner surface of the inner groove (9) is fixedly connected with a second pressure sensor (10), the inside of the mold body (1) is fixedly connected with an annular conduit (11) and a communication pipe (12), the outer surface of the annular conduit (11) is fixedly connected with a water inlet pipe (13) and a water outlet pipe (15).

2. A demolding mechanism for a plastic mold according to claim 1, characterized in that: The bottom of the mold body (1) is fixedly connected with a support frame (2), the inside of the support frame (2) is fixedly connected with a telescopic cylinder (3), the top end of the telescopic cylinder (3) is fixedly connected with a first pressure sensor (4), the top of the first pressure sensor (4) is fixedly connected with a support plate (5), the upper surface of the support plate (5) is fixedly connected with a heat conduction plate (6), the inside of the heat conduction plate (6) is fixedly connected with a temperature sensor (7), the outer surface of the heat conduction plate (6) is fixedly connected with a sealing sleeve (8), the bottom of the inner surface of the mold body (1) is provided with an inner groove (9), the bottom of the inner surface of the inner groove (9) is fixedly connected with a second pressure sensor (10), the inside of the mold body (1) is fixedly connected with an annular conduit (11) and a communication pipe (12), the outer surface of the annular conduit (11) is fixedly connected with a water inlet pipe (13) and a water outlet pipe (15).

3. A demolding mechanism for a plastic mold according to claim 1, characterized in that: The outer surfaces of the support plate (5) and the sealing sleeve (8) are matched with the inner surface of the inner groove (9).

4. The ejection mechanism for a plastic mold according to claim 1, wherein: The first pressure sensor (4), the temperature sensor (7) and the second pressure sensor (10) are electrically connected with the telescopic cylinder (3).

5. The ejection mechanism for a plastic mold according to claim 1, wherein: The number of the annular conduit (11) is several, the several annular conduits (11) are connected through the communication pipe (12), and the inside of the annular conduit (11) is communicated with the inside of the communication pipe (12).

6. A plastic mold release mechanism according to claim 1 wherein: The outer surfaces of the water inlet pipe (13) and the water outlet pipe (15) penetrate the mold body (1) and extend to the outside, the end of the water inlet pipe (13) is fixedly connected with a water inlet connector (14), and the end of the water outlet pipe (15) is fixedly connected with a water outlet connector (16).