Integral forming die structure of heat insulating layer of engine

By designing an adjustable mold structure, the problems of uneven insulation layer thickness and complex demolding were solved, thereby improving the uniformity of insulation layer thickness and production efficiency.

CN223934048UActive Publication Date: 2026-02-24SUZHOU WAIJUN PRECISE MOULD CO LTD
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Patent Information

Application Number
CN202520370407.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-05
Publication Date
2026-02-24
Estimated Expiration
2035-03-05

AI Technical Summary

Technical Problem

Traditional engine insulation layer molding dies are difficult to guarantee the uniformity of insulation layer thickness, have poor adaptability, are complex to demold and have high costs, thus affecting production efficiency.

Method used

An integral molding mold structure was designed, comprising a support base, a molding substrate, an outer mold assembly, an inner mold assembly, a thickness adjustment assembly, a demolding assembly, a telescopic assembly, and an injection assembly. The adjustable adjustment plate and demolding assembly enable precise control of the insulation layer thickness and rapid demolding.

Benefits of technology

This achieved uniformity in insulation layer thickness and improved production efficiency, reduced production costs, and simplified operating procedures.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an integral forming die structure of an engine heat insulating layer, which relates to the technical field of engine production equipment and comprises a support base and a forming base plate arranged on the support base. The injection mold further comprises an outer mold assembly, an inner mold assembly, a thickness adjusting assembly, a mold outlet assembly, a telescopic assembly and an injection assembly, the outer mold assembly comprises an outer mold cylinder, the outer mold cylinder is of a hollow structure, and a sealing groove is formed in the edge of one end of the outer mold cylinder; the adjustable adjusting plate is arranged in the forming cavity, so that the thickness of a heat insulation layer can be accurately controlled according to different engine specifications, the thickness of the heat insulation layer is uniform, and the heat insulation effect and the performance stability of an engine are improved; due to the design of the novel mold outlet assembly, a heat insulation layer product can be quickly demolded after mold opening, the manual operation time is shortened, and the production efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of engine production equipment technology, specifically to an integral molding mold structure for engine insulation layer. Background Technology

[0002] In the engine manufacturing process, the insulation layer plays an important role in engine performance. It can effectively reduce the loss of heat inside the engine and improve the engine's thermal efficiency and reliability.

[0003] Traditional engine insulation layer molding dies have difficulty ensuring uniform insulation layer thickness during the molding process, resulting in unstable insulation performance. They also have poor adaptability to insulation layers for different engine specifications, requiring frequent replacement of mold components and increasing production costs. Furthermore, traditional molds have complex demolding methods, making operation inconvenient and affecting production efficiency. Utility Model Content

[0004] This invention provides an integral molding die structure for engine insulation layer, which has the advantages of freely controlling the insulation layer thickness and fast demolding, thus solving the problems of poor adaptability and complex demolding of existing equipment.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an integral molding mold structure for an engine insulation layer, comprising a support base and a molding substrate disposed on the support base, and further comprising an outer mold assembly, an inner mold assembly, a thickness adjustment assembly, a demolding assembly, a telescopic assembly, and an injection assembly, wherein:

[0006] The outer mold assembly includes an outer mold cylinder, which is a hollow structure, and a sealing groove is provided at one end edge of the outer mold cylinder;

[0007] The inner mold assembly includes an inner mold shaft, one end of which is provided with a rubber sealing ring and the other end with a sealing plate. A top shaft is provided inside the rubber sealing ring. The thickness adjustment assembly includes an outer ring, which is fixed to the molding substrate by screws.

[0008] The outer ring is penetrated by several spiral shafts and rotates in a spiral manner. A slider is welded to one end of the spiral shaft and a knob is provided at the other end. The slider is fitted into one side of the adjustment plate and rotates in a spiral manner. The mold ejection assembly includes a mold ejection plate. Several mold ejection pillars are welded to one side of the mold ejection plate and several strong springs are provided on the other side.

[0009] As a preferred embodiment of this utility model, the adjusting plate passes through the outer mold cylinder and is slidably fitted, the mold ejector column passes through one end of the outer mold cylinder and is slidably fitted, one end of the top shaft is welded to the inner mold shaft, and the other end abuts against the mold ejector plate.

[0010] As a preferred technical solution of this utility model, the sealing plate has a sealing groove on one side and a push post on the other side, and the rubber sealing ring is fitted into the inner wall of the outer mold cylinder.

[0011] As a preferred embodiment of this utility model, one end of the powerful spring is welded to the support back plate, the support back plate is welded to the molding substrate, the outer side of the inner mold shaft is provided with several protrusions, and the outer mold cylinder is fixed to the molding substrate by bolts.

[0012] As a preferred embodiment of the present invention, the telescopic component includes a hydraulic cylinder, the hydraulic cylinder is provided with a telescopic shaft, and the telescopic shaft is fixedly connected to one end of the push column.

[0013] As a preferred embodiment of this utility model, the oil cylinder is connected to a reversing valve, and an oil pump is provided on one side of the reversing valve. The oil pump is mounted on the oil tank.

[0014] As a preferred technical solution of this utility model, the injection assembly includes a polyurethane injection machine, the top of the polyurethane injection machine is provided with an addition cylinder, and one side of the polyurethane injection machine is provided with an injection head, one end of the injection head extending through the outer side of the outer mold cylinder into the interior.

[0015] Compared with the prior art, this utility model provides an integral molding mold structure for engine insulation layer, which has the following beneficial effects: By setting an adjustable adjustment plate in the molding cavity, the thickness of the insulation layer can be precisely controlled according to different engine specifications, so that the thickness of the insulation layer is uniform and the insulation effect and performance stability of the engine are improved; the design of the demolding component of this new model enables the insulation layer product to be quickly demolded after the mold is opened, reducing manual operation time and improving production efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a structural diagram of the inner mold component of this utility model;

[0018] Figure 3 This is a schematic diagram of the outer mold assembly structure of this utility model;

[0019] Figure 4 This is a structural diagram of the ejection assembly of this utility model;

[0020] Figure 5 This is a schematic diagram of the thickness adjustment component of this utility model;

[0021] Figure 6 This is a structural diagram of the telescopic component of this utility model;

[0022] Figure 7 This is a structural diagram of the injection assembly of this utility model.

[0023] In the diagram: 1. Support base; 2. Molding substrate; 3. Outer mold assembly; 31. Outer mold cylinder; 32. Sealing groove; 4. Inner mold assembly; 41. Inner mold shaft; 42. Rubber sealing ring; 43. Sealing plate; 44. Top shaft; 45. Push column; 411. Raised strip; 5. Thickness adjustment assembly; 51. Outer ring; 52. Spiral shaft; 53. Sliding ball; 54. Knob; 55. Adjusting plate; 6. Demolding assembly; 61. Demolding plate; 62. Demolding column; 63. Strong spring; 64. Support back plate; 7. Telescopic assembly; 71. Hydraulic cylinder; 72. Telescopic shaft; 73. Reversing valve; 74. Oil pump; 75. Oil tank; 8. Injection assembly; 81. Polyurethane injection machine; 82. Addition cylinder; 83. Injection head. Detailed Implementation

[0024] 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. Example 1

[0025] Please see Figures 1-7 This utility model discloses an integral molding mold structure for an engine insulation layer, including a support base 1 and a molding base plate 2 disposed on the support base 1, and also including an outer mold assembly 3, an inner mold assembly 4, a thickness adjustment assembly 5, a demolding assembly 6, a telescopic assembly 7, and an injection assembly 8, wherein:

[0026] The outer mold assembly 3 includes an outer mold cylinder 31, which is a hollow structure, and a sealing groove 32 is provided at one end edge of the outer mold cylinder 31;

[0027] Please refer to the appendix. Figure 2 The inner mold assembly 4 includes an inner mold shaft 41, with a rubber sealing ring 42 at one end and a sealing plate 43 at the other end. A top shaft 44 is provided inside the rubber sealing ring 42. The thickness adjustment assembly 5 includes an outer ring 51, which is fixed to the molding base plate 2 by screws. Specifically, the sealing plate 43 is fitted and sealed with the sealing groove 32 of the outer mold cylinder 31. At the same time, the rubber sealing ring 42 at the other end of the inner mold shaft 41 is fitted into the inner wall of the outer mold cylinder 31, so that a closed mold cavity is formed between the outer mold cylinder 31 and the inner mold shaft 41, which prevents the leakage of the plastic mold fluid and improves the quality of the plastic mold.

[0028] Please refer to the appendix. Figure 4 and appendix Figure 5The outer ring 51 is penetrated by several spiral shafts 52 and rotates in a spiral manner. One end of the spiral shaft 52 is welded with a ball 53, and the other end is provided with a knob 54. The ball 53 is fitted into one side of the adjusting plate 55 and rotates in a spiral manner. The mold ejection assembly 6 includes a mold ejection plate 61. Several mold ejection pillars 62 are welded to one side of the mold ejection plate 61, and several strong springs 63 are provided on the other side. Specifically, when the mold ejection plate 61 loses the contact of the top shaft 44, the strong springs 63 will release elastic potential energy, and the mold ejection plate 61 will drive the mold ejection pillars 62 to extend into the mold cavity, thereby ejecting the molded insulation layer to complete the mold ejection.

[0029] The adjusting plate 55 passes through the outer mold cylinder 31 and is slidably fitted; the mold ejector pin 62 passes through one end of the outer mold cylinder 31 and is slidably fitted; one end of the top shaft 44 is welded to the inner mold shaft 41, and the other end abuts against the mold ejector plate 61.

[0030] In this embodiment, the rotating knob 54 drives the spiral shaft 52 to rotate and interact with the outer ring 51. The relative displacement occurs through the spiral force, and then the adjusting plate 55 slides on the outer mold cylinder 31 through the slider 53, adjusting its extension length on the outer mold cylinder 31, thereby controlling the size of the mold cavity space, achieving precise control of the insulation layer thickness, and ensuring the uniformity of the insulation layer thickness. Example 2

[0031] Based on the above embodiment 1, please refer to the appendix. Figure 3 , Figure 6 as well as Figure 7 The sealing plate 43 is fitted with a sealing groove 32 on one side and a push post 45 on the other side. The rubber sealing ring 42 is fitted with the inner wall of the outer mold cylinder 31.

[0032] One end of the strong spring 63 is welded to the support back plate 64, and the support back plate 64 is welded to the molding base plate 2. The outer side of the inner mold shaft 41 is provided with several protrusions 411, and the outer mold cylinder 31 is fixed to the molding base plate 2 by bolts. Specifically, the protrusions 411 make the inner ring of the heat insulation layer form a groove, which facilitates the fitting and fixing with the engine.

[0033] The telescopic assembly 7 includes a hydraulic cylinder 71, which has a telescopic shaft 72, and the telescopic shaft 72 is fixedly connected to one end of the push column 45.

[0034] The hydraulic cylinder 71 is connected to the reversing valve 73. The reversing valve 73 is equipped with an oil pump 74 on one side. The oil pump 74 is installed on the oil tank 75. Specifically, the oil pump 74 acts on the hydraulic cylinder 71 through the hydraulic oil in the oil tank 75, and controls the direction through the reversing valve 73, so that the telescopic shaft 72 can extend and retract freely, thereby driving the push column 45 to move the inner mold shaft 41 horizontally and enter and exit the outer mold cylinder 31.

[0035] The injection assembly 8 includes a polyurethane injection machine 81, with an addition cylinder 82 on the top of the polyurethane injection machine 81 and an injection head 83 on one side of the polyurethane injection machine 81. One end of the injection head 83 extends through the outer side of the outer mold cylinder 31 and into the interior.

[0036] In this embodiment, the thermal insulation material is melted into a fluid state by the polyurethane injection machine 81, and the fluid material is injected into the mold cavity through the injection head 83 by the thrust of the plunger. After the fluid cools and solidifies, the molding is completed.

[0037] The working principle and usage process of this utility model are as follows: First, the oil pump 74 is started, and the hydraulic oil acts on the oil cylinder 71 to drive the telescopic shaft 72 to extend outward. This drives the push column 45 to push the inner mold shaft 41 to move horizontally and insert into the outer mold cylinder 31, so that the sealing plate 43 fits and seals with the sealing groove 32 of the outer mold cylinder 31. At the same time, the rubber sealing ring 42 at the other end of the inner mold shaft 41 fits into the inner wall of the outer mold cylinder 31, so that a closed mold cavity is formed between the outer mold cylinder 31 and the inner mold shaft 41, which prevents the leakage of plastic mold fluid and improves the quality of plastic mold.

[0038] At the same time, when the inner mold shaft 41 is pushed in, it will drive the top shaft 44 to lift the mold plate 61. The mold plate 61 will drive the mold column 62 to move out of the mold cavity and fit into the outer mold cylinder 31. When the mold plate 61 moves away from the outer mold cylinder 31, it will compress the strong spring 63 to store elastic potential energy.

[0039] Then, rotating the knob 54 drives the spiral shaft 52 to rotate and interact with the outer ring 51. The relative displacement occurs through the spiral force, and then the adjusting plate 55 slides on the outer mold cylinder 31 through the slider 53, adjusting its extension length on the outer mold cylinder 31, controlling the size of the mold cavity space, and setting the thickness of the insulation layer according to the specifications of the engine insulation layer to be formed.

[0040] Finally, polyurethane insulation material is added through the adding cylinder 82. The insulation material is melted into a fluid state by the polyurethane injection machine 81, and the fluid material is injected into the mold cavity through the injection head 83 by the thrust of the plunger. After the fluid cools and solidifies, the molding is completed. The oil pump 74 is restarted and the hydraulic oil is controlled by the reversing valve 73 to reverse the action of the telescopic shaft 72 to retract, thereby moving the inner mold shaft 41 out of the outer mold cylinder 31. At this time, the ejector plate 61 loses the contact of the top shaft 44, the strong spring 63 releases the elastic potential energy, and the ejector plate 61 drives the ejector column 62 to extend into the mold cavity, thereby ejecting the molded insulation layer. This is convenient and quick, and greatly improves the demolding efficiency.

Claims

1. A mold structure for integral molding of an engine insulation layer, comprising a support base (1) and a molding substrate (2) disposed on the support base (1), characterized in that, It also includes an outer mold assembly (3), an inner mold assembly (4), a thickness adjustment assembly (5), an ejection assembly (6), a telescopic assembly (7), and an injection assembly (8), wherein: The outer mold assembly (3) includes an outer mold cylinder (31), which is a hollow structure, and a sealing groove (32) is provided at one end edge of the outer mold cylinder (31). The inner mold assembly (4) includes an inner mold shaft (41), one end of which is provided with a rubber sealing ring (42) and the other end is provided with a sealing plate (43). The inner side of the rubber sealing ring (42) is provided with a top shaft (44). The thickness adjustment assembly (5) includes an outer ring (51), which is fixed to the molding substrate (2) by screws. The outer ring (51) is penetrated by several spiral shafts (52) and rotates in a spiral manner. One end of the spiral shaft (52) is welded with a ball (53) and the other end is provided with a knob (54). The ball (53) is fitted into one side of the adjustment plate (55) and rotates in a spiral manner. The mold ejection assembly (6) includes a mold ejection plate (61). Several mold ejection pillars (62) are welded to one side of the mold ejection plate (61) and several strong springs (63) are provided on the other side.

2. The integral molding die structure for an engine insulation layer according to claim 1, characterized in that: The adjusting plate (55) passes through the outer mold cylinder (31) and is slidably fitted. The mold ejector column (62) passes through one end of the outer mold cylinder (31) and is slidably fitted. One end of the top shaft (44) is welded to the inner mold shaft (41), and the other end abuts against the mold ejector plate (61).

3. The integral molding die structure for an engine insulation layer according to claim 2, characterized in that: The sealing plate (43) has a sealing groove (32) fitted on one side and a pusher (45) on the other side. The rubber sealing ring (42) fits into the inner wall of the outer mold cylinder (31).

4. The integral molding mold structure for an engine insulation layer according to claim 3, characterized in that: One end of the strong spring (63) is welded to the support back plate (64), the support back plate (64) is welded to the molding base plate (2), the outer side of the inner mold shaft (41) is provided with several protrusions (411), and the outer mold cylinder (31) is fixed to the molding base plate (2) by bolts.

5. The integral molding die structure for an engine insulation layer according to claim 1, characterized in that: The telescopic assembly (7) includes a hydraulic cylinder (71), the hydraulic cylinder (71) is provided with a telescopic shaft (72), and the telescopic shaft (72) is fixedly connected to one end of the push column (45).

6. The integral molding mold structure for an engine insulation layer according to claim 5, characterized in that: The oil cylinder (71) is connected to the reversing valve (73), and an oil pump (74) is provided on one side of the reversing valve (73). The oil pump (74) is installed on the oil tank (75).

7. The integral molding mold structure for an engine insulation layer according to claim 1, characterized in that: The injection assembly (8) includes a polyurethane injection machine (81), with an addition cylinder (82) on the top of the polyurethane injection machine (81) and an injection head (83) on one side of the polyurethane injection machine (81). One end of the injection head (83) extends through the outer side of the outer mold cylinder (31) and into the interior.