Recyclable anti-stick gate injection port device

Abstract

This invention relates to the field of mold injection device technology, specifically a reusable anti-sticking injection port device, including an outer injection sleeve and an inner cylinder detachably installed inside the outer injection sleeve. A cap with a pressure regulating structure solves the problem of needing to replace the hose each time. Slurry is injected from bottom to top through the inner cylinder. The inner cylinder has a lower protrusion that provides greater buoyancy, which works in conjunction with a floating airbag to prevent the inner cylinder from failing to float due to gravity. This facilitates greater buoyancy, allowing the inner cylinder to float quickly as the slurry volume increases, preventing the slurry from washing away the release agent along the injection port, thus avoiding difficulties in demolding. Simultaneously, the pressure regulating structure allows excess slurry and gas to be discharged, preventing pipe bursts, mold sticking, and other problems. This device improves production efficiency and increases the yield of demolded products.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mold grouting device, in particular to a recyclable anti-sticking mold grouting port device. BACKGROUND

[0002] The injection molding technology combines the traditional ceramic process and the organic polymer chemistry, and flexibly introduces the polymerization method of high molecular monomer into the ceramic forming process, so that the net size forming high-strength, high-density and uniform ceramic body is realized by preparing low-viscosity and high-solid-content ceramic slurry.

[0003] At present, the biggest feature of the injection molding product is that when the product is heated and solidified in the mold, a large stress will be generated due to thermal expansion, and the mold needs to inject slurry at the grouting port. The existing grouting port device is composed of five parts of sealing machine, hose, clip, PV pipe and ribbon. When the mold is filled with slurry, the slurry will flow out along the hose, and then the stress generated during the pressure maintaining and solidification expansion of the product will be adjusted by the toughness of the hose itself. When the stress exceeds the toughness limit of the hose itself, the hose is prone to burst. Moreover, since the mold grouting time is relatively long, generally 1-2 hours, the slurry will flow into the mold grouting, which is easy to wash off the release agent at the inner and outer corners of the mold grouting, so that the product is stuck to the mold during demolding, which affects the demolding and causes scrap. The hose will swell and deform during use and cannot be recycled, so it needs to be replaced every time a product is made, which has great disadvantages in terms of employee assembly operation, production cost and product yield.

[0004] In order to overcome the disadvantages of the existing grouting port device, such as the need for replacement every time, easy burst and sticking to the mold, a grouting device is needed to solve the problem of replacing the hose every time and prevent the product from sticking to the mold. In view of this, we propose a recyclable anti-sticking mold grouting port device. SUMMARY

[0005] In order to make up for the above shortcomings, the present application provides a recyclable anti-sticking mold grouting port device.

[0006] The technical scheme of the present application is as follows:

[0007] The recyclable anti-sticking mold grouting port device comprises a grouting outer sleeve capable of being fixedly installed at the mold grouting port, a inner sleeve capable of injecting slurry is detachably installed in the grouting outer sleeve, a buoyancy increasing structure capable of rising and falling along the grouting outer sleeve under the buoyancy of the slurry is arranged at the bottom end of the inner sleeve; a cap is detachably installed on the grouting outer sleeve, and a pressure regulating structure capable of avoiding damage caused by excessive pressure is arranged on the cap.

[0008] Preferably, the pressure regulating structure comprises a cover plate surface on the top end of the cap, and the cover plate surface is provided with a through hole for discharging excess slurry and gas to reduce the internal grouting pressure.

[0009] Preferably, the grouting outer sleeve is provided with at least two rolling grooves on the outer cylinder wall, and the pressure regulating structure further comprises a cylinder body fixedly installed below the cover plate surface, and a plurality of groups of rolling balls corresponding to the rolling grooves are rotatably installed on the inner cylinder wall of the cylinder body, and the cylinder body can move up and down along the rolling grooves through the rolling balls to avoid excessive pressure when the slurry solidifies and expands.

[0010] Preferably, a floating air bag is installed on the outer cylinder wall of the upper end of the inner cylinder, and the floating air bag is circumscribed by an inflatable air body to provide buoyancy.

[0011] Preferably, the buoyancy increasing structure is a convex protrusion provided with a circular truncated cone structure and protruding outward at the bottom end of the inner cylinder, and the convex protrusion is provided with a plurality of grouting holes.

[0012] Preferably, the buoyancy increasing structure is a convex protrusion provided with a circular truncated cone structure and recessed inward at the bottom end of the inner cylinder, and the convex protrusion is provided with a plurality of grouting holes.

[0013] Preferably, the cover plate surface adopts an elastic film or an elastic plate with an elastic surface deformation.

[0014] Preferably, the cover plate surface adopts any one of rubber, polyurethane or nylon materials.

[0015] Preferably, the grouting outer sleeve is made of stainless steel.

[0016] Preferably, the inner cylinder is made of polyethylene material.

[0017] Compared with the prior art, the present application has the following advantages:

[0018] The recyclable anti-sticking mold grouting port device does not use a hose, but uses a cap with a pressure regulating structure to solve the problem of replacing the hose every time, and the inner cylinder can inject slurry from bottom to top, and the inner cylinder can obtain greater buoyancy through the convex protrusion below, and can cooperate with the floating air bag to avoid the inner cylinder from not floating due to gravity. It is beneficial to obtain greater buoyancy to drive the inner cylinder to float faster with the increase of slurry injection amount, and can avoid the problem of difficult demolding caused by slurry washing release agent along the grouting port. Through the pressure regulating structure, excess slurry and gas can be discharged, and the stress generated when the slurry solidifies and expands can be released to avoid the generation of disadvantages such as pipe explosion and mold sticking. The device is convenient for workers to assemble and operate, which is beneficial to improve production efficiency, improve demolding yield and reduce cost. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 Figure 1 is a schematic diagram of the cap and the outer sleeve for grouting according to the present application;

[0020] Figure 2 Figure 2 is a schematic diagram of the cap and the outer sleeve for grouting according to the present application;

[0021] Figure 3 Figure 3 is a schematic diagram of a part of the structure according to the present application;

[0022] Figure 4 Figure 4 is a schematic diagram of the inner sleeve structure according to the present application;

[0023] Figure 5 Figure 5 is a schematic diagram of the inner sleeve structure according to the present application.

[0024] The meanings of the respective reference numerals in the figures are as follows:

[0025] 1, cap; 11, cover surface; 101, through hole; 12, sleeve; 13, ball; 2, floating air bag; 3, inner sleeve; 31, protrusion; 311, grouting hole; 4, outer sleeve for grouting; 401, rolling groove. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0027] Please refer to Figures 1-5 The above technical solutions will be described in detail by the following embodiments.

[0028] Embodiment 1

[0029] The reusable anti-sticking mold grouting device comprises an outer sleeve for grouting 4 which can be fixedly installed at the grouting port of the mold, an inner sleeve 3 which can be installed in the outer sleeve for grouting 4 in a detachable manner and can inject slurry, and a cap 1 which can be detachably installed on the outer sleeve for grouting 4 and is provided with a floating structure at the bottom end of the inner sleeve 3 which can be lifted up and down along the outer sleeve for grouting 4 under the buoyancy of the slurry.

[0030] The pressure regulating structure comprises a cover surface 11 at the top end of the cap 1, and the cover surface 11 is provided with a through hole 101 which can discharge excess slurry and gas to reduce the internal grouting pressure.

[0031] The outer sleeve wall of the grouting outer sleeve 4 is provided with at least two rolling grooves 401, and the pressure regulating structure further comprises a cylinder body 12 fixedly installed below the cover plate surface 11, and the inner cylinder wall of the cylinder body 12 is rotatably provided with a plurality of rolling balls 13 corresponding to the rolling grooves 401, and the cylinder body 12 can move up and down along the rolling grooves 401 through the rolling balls 13 to avoid excessive pressure when the slurry solidifies and expands, as shown in Figure 2 The rolling balls can reduce the frictional resistance between the rolling grooves 401 and better obtain a smaller expansion breaking force, that is, the internal slurry is pressed to make the cover plate surface 11 rise after thermal expansion, thereby avoiding the cover plate surface 11 from being broken due to excessive stress.

[0032] A floating air bag 2 is installed on the outer cylinder wall of the upper end of the inner cylinder 3, and the floating air bag 2 is connected with an inflatable air body to provide buoyancy, and the air source mainly adopts hydrogen and helium, but hydrogen is flammable and explosive, so the embodiment adopts helium, so that the air body has upward buoyancy, so that the inner cylinder 3 can be floated more sensitively under the influence of reducing gravity, and the injection of excessive slurry is avoided.

[0033] The floating increasing structure of the embodiment is a convex 31 with a circular truncated cone structure and outwardly protruding at the bottom end of the inner cylinder 3, and the convex 31 is provided with a grouting hole 311, as shown in Figure 5 The circular truncated cone structure can increase the contact area with the slurry to obtain the contact area of the buoyancy, and the grouting hole 311 does not affect the grouting.

[0034] The cover plate surface 11 of the embodiment is made of a rubber material with an elastic surface, and the thickness of the elastic film is 5.5 mm, the grouting outer sleeve 4 is made of 304 stainless steel material, and the inner cylinder 3 is made of polyethylene material.

[0035] Embodiment 2

[0036] The reusable anti-sticking mold grouting port device comprises a grouting outer sleeve 4 which can be fixedly installed at the mold grouting port, a inner cylinder 3 which can be detachably installed in the grouting outer sleeve 4 and can inject slurry, and a floating increasing structure which is provided at the bottom end of the inner cylinder 3 and can be lifted up and down along the grouting outer sleeve 4 under the action of the buoyancy of the slurry; a cap 1 which is detachably installed on the grouting outer sleeve 4, and a pressure regulating structure which is provided on the cap 1 and can avoid damage caused by excessive pressure.

[0037] The pressure regulating structure comprises a cover plate surface 11 at the top end of the cap 1, and the cover plate surface 11 is provided with a through hole 101 which can discharge excess slurry and gas to reduce the internal grouting pressure.

[0038] The outer sleeve wall of the grouting outer sleeve 4 is provided with at least two rolling grooves 401, and the pressure regulating structure further comprises a cylinder body 12 fixedly installed below the cover plate surface 11, and the inner cylinder wall of the cylinder body 12 is rotatably installed with a plurality of rolling balls 13 corresponding to the rolling grooves 401, and the cylinder body 12 can move up and down along the rolling grooves 401 through the rolling balls 13 to avoid excessive pressure when the slurry solidifies and expands, as shown in Figure 2 The rolling balls can reduce the frictional resistance between the rolling grooves 401 and better obtain a smaller expansion breaking force, that is, the internal slurry thermal expansion will press the cover plate surface 11 to rise, avoiding the cover plate surface 11 from bursting due to excessive stress.

[0039] The floating air bag 2 is installed on the outer cylinder wall of the upper end of the inner cylinder 3, and the floating air bag 2 is connected with an inflatable air bag to provide buoyancy. The air source mainly uses hydrogen and helium, but hydrogen is flammable and explosive, so the embodiment uses helium, so that the air bag has upward buoyancy, so that the inner cylinder 3 can reduce the influence of gravity and more sensitive floating of the inner cylinder 3, avoiding injection of excessive slurry.

[0040] The floating structure of the embodiment is a circular truncated cone-shaped inner recessed protrusion 31 located at the bottom end of the inner cylinder 3, and the protrusion 31 is provided with a grouting hole 311. Figure 5 As shown in the figure, the circular truncated cone structure can increase the contact area with the slurry to obtain the contact area of the buoyancy, and the grouting hole 311 does not affect the grouting.

[0041] The cover plate surface 11 of the embodiment is made of a rubber material with an elastic surface that can be elastically deformed, and the thickness of the elastic film is 5.5mm, the grouting outer sleeve 4 is made of 304 stainless steel material, and the inner cylinder 3 is made of polyethylene material.

[0042] The recyclable anti-sticking mold injection nozzle device of example 1 or example 2 is configured with slurry, the outer injection sleeve 4 is fixedly installed at the mold injection nozzle, then the inner cylinder 3 is inserted into the mold bottom along the outer injection sleeve 4, helium is injected into the floating air bag 2 so that the floating force is slightly smaller than the gravity of the inner cylinder 3, at this time the gravity of the inner cylinder 3 is mainly reduced based on the floating force provided by the helium, then the slurry is injected, the slurry rises in the mold, the protrusion 31 provided at the bottom of the inner cylinder 3 can increase the contact area with the slurry, the floating force of the inner cylinder 3 itself is obtained, and the floating force provided by the floating air bag 2 is cooperated with each other to overcome the gravity of the inner cylinder 3; so that the inner cylinder 3 can float with the liquid level height of the slurry, when the inner cylinder 3 is filled with the slurry, it will be completely floated out, the injection is stopped, and the inner cylinder 3 is taken out; the cap 1 is used to cover the outer injection sleeve 4 and clamped by the clip, the excess slurry and gas are discharged along the through hole 101 on the top cover surface 11, then the slurry continuously expands in the mold, the stress will be automatically adjusted by the elastic cover surface 11, at the beginning, the slurry will expand to form a protrusion, then the clip is removed, the cap 1 rises under the expansion force, which can prevent the pipe from exploding, and the inner cylinder 3 inserted into the mold bottom can avoid the problem of affecting demolding caused by washing off the release agent.

[0043] The basic principles, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, the above examples and descriptions in the specification are only preferred examples of the present application, and are not used to limit the present application, various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. Recyclable anti-sticking injection nozzle device, comprising an injection outer sleeve (4) capable of being fixedly installed at the injection nozzle of a mold, characterized in that: The inner cylinder (3) capable of injecting slurry is detachably installed in the outer grouting sleeve (4), the bottom end of the inner cylinder (3) is provided with a buoyancy increasing structure capable of ascending and descending along the outer grouting sleeve (4) under the buoyancy of the slurry; the cap (1) is detachably installed on the outer grouting sleeve (4), the cap (1) is provided with a pressure regulating structure capable of avoiding damage caused by excessive pressure; the pressure regulating structure comprises a cover face (11) located at the top end of the cap (1), the cover face (11) is provided with a through hole (101) capable of discharging excess slurry and gas to reduce the internal grouting pressure; the outer cylinder wall of the outer grouting sleeve (4) is provided with at least two rolling grooves (401), and the pressure regulating structure further comprises a cylinder body (12) fixedly installed below the cover face (11), a plurality of groups of rolling balls (13) corresponding to the rolling grooves (401) are rotatably installed on the inner cylinder wall of the cylinder body (12), the cylinder body (12) can move up and down along the rolling grooves (401) through the rolling balls (13) to avoid excessive pressure when the slurry solidifies and expands; the floating air bag (2) is installed on the outer cylinder wall of the upper end of the inner cylinder (3), the floating air bag (2) is connected with an air source capable of expanding the bag body to provide buoyancy; the buoyancy increasing structure is a protrusion (31) provided at the bottom end of the inner cylinder (3) and protruding outward in a circular truncated cone shape, and a plurality of grouting holes (311) are provided on the protrusion (31).

2. The reusable stick-pack porting device of claim 1, wherein: The cover face (11) is made of an elastic film or an elastic plate capable of elastically deforming.

3. The reusable stick-pack spout device of claim 1, wherein: The cover face (11) is made of any one of rubber, polyurethane or nylon materials.

4. The reusable stick-pack porting device of claim 1, wherein: The outer grouting sleeve (4) is made of stainless steel.

5. The reusable stick-pack spout device of claim 1, wherein: The inner cylinder (3) is made of polyethylene material.

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