Mold opening and reverse buckle removing mechanism of double-color injection mold

Abstract

The utility model discloses a mold opening and reverse buckle removing mechanism of a double-color injection mold, and relates to the technical field of mold opening and reverse buckle removing mechanisms. The mold opening and back-off buckle removing mechanism of the double-color injection mold comprises a back-off buckle module used for being installed on the mold to achieve back-off injection molding and demolding of materials, and three inclined sliding holes are formed in the back-off buckle module at equal intervals; the three sliding rods are slidably connected with the inner walls of the sliding holes; the oil storage structure is arranged in the sliding hole and used for storing more lubricating oil in the sliding hole; through the design of the oil storage structure, lubricating oil can be stored in the sliding hole, so that a continuous lubricating effect is provided in the sliding process of the sliding rod, friction between the sliding rod and the sliding hole is reduced, and the service life of the mold is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of mold opening and undercut releasing mechanisms, and specifically relates to a mold opening and undercut releasing mechanism for a two-color injection mold. Background Art

[0002] In the process of two-color injection molding, the mold opening and undercut releasing mechanism plays a crucial role; it is responsible for enabling the undercut part inside the injection molded product to be smoothly demolded when the mold is opened, thereby avoiding product damage and mold wear, and ensuring product quality and production efficiency.

[0003] Referring to the internal undercut demolding mechanism of the injection mold disclosed in the patent application with the publication number CN103009581B, it includes an upper composite plate and a lower composite plate. A cavity is installed below the upper composite plate, a swing rod installation groove is opened in the mold feet installed on the lower composite plate, and a swing rod is installed in the groove. A support plate is installed on the mold feet, and a core insert and a core fixing plate are installed on the support plate. A stripper plate is installed on the core fixing plate. Upper and lower ejector plates A are arranged between the mold feet. The ejector rod of the injection machine passes through the perforation and contacts the lower ejector plate A. Arc-shaped contact surfaces are formed on both sides of the upper ejector plate A and contact the swing rod. A knockout rod is installed between the upper and lower ejector plates A and fixed to the stripper plate. A limit sleeve is installed on the upper ejector plate A, and upper and lower ejector plates B are installed on the limit sleeve. The swing rod contacts the lower ejector plate B through the arc-shaped contact surface. A push rod is installed between the upper and lower ejector plates B and passes through the core insert to contact the plastic product. A chute is opened in the support plate, and a fixing plate is installed below the chute. A forming sleeve is installed in the chute and sleeved outside the push rod. The upper part of the forming sleeve is matched with the internal undercut, and a forming sleeve return spring is installed outside the forming sleeve.

[0004] As shown in the above prior art, when the mold opening and undercut releasing mechanism of the two-color injection mold in the prior art is performing injection molding work, it is necessary to move the undercut mold frequently to gradually eject the injection molded part from the mold. In the prior art, workers need to regularly inject lubricating oil into the undercut mold to lubricate the movement of the undercut mold and avoid excessive friction during the mold opening process; and the conventional mold movement sliding holes require workers to frequently add lubricating oil, which brings inconvenience to the maintenance and use of the undercut mold.

[0005] Therefore, it is necessary to provide a mold opening and undercut releasing mechanism for a two-color injection mold to solve the above technical problems. Summary of the Utility Model

[0006] (1) Technical Problems to be Solved

[0007] To solve the above technical problems, the utility model provides a mold opening and undercut releasing mechanism for a two-color injection mold.

[0008] (2) Technical Solutions

[0009] To achieve the above purposes, the utility model is realized through the following technical solutions: A mold opening and undercut releasing mechanism for a two-color injection mold, comprising:

[0010] Inverted buckle module, which is used to be installed on a mold to realize the inverted injection molding and demolding of materials. Three inclined sliding holes are equidistantly arranged on the inverted buckle module;

[0011] Slide rods, there are three of them, and they are all slidably connected to the inner wall of the sliding holes;

[0012] Oil storage structure, which is arranged inside the sliding holes, and the oil storage structure is used to store more lubricating oil inside the sliding holes;

[0013] Oil scraping structure, which is arranged on the sliding holes, and the oil scraping structure is used to prevent the excessive lubricating oil in the sliding holes from overflowing outside the sliding holes along with the movement of the slide rods, causing waste.

[0014] Preferably, the oil scraping structure includes grooves opened at both ends of the sliding holes. Sealing rings are fixed on the inner walls of the grooves. The slide rods are slidably connected to the inner walls of the sealing rings. One side of the grooves is communicated with the oil storage structure through a return groove, and the return groove is used to make the lubricating oil scraped in the grooves flow back into the oil storage structure.

[0015] Preferably, the oil storage structure includes two pairs of solution grooves symmetrically formed on the inner wall of the sliding holes. Each pair of solution grooves is equidistantly distributed along the axial direction of the sliding holes, and the two groups of solution grooves are arranged staggeredly. The ends of several solution grooves are all communicated with the return groove.

[0016] Preferably, the cross section of the solution groove is designed to be semi-circular.

[0017] Preferably, the sealing ring is made of silica gel material.

[0018] Preferably, the thickness of the groove is greater than the thickness of the sealing ring, and the sealing ring does not protrude from the surface of the inverted buckle module.

[0019] (III) Beneficial effects

[0020] The present utility model provides an opening and demolding inverted buckle mechanism for a two-color injection mold. Compared with the prior art, it has the following beneficial effects:

[0021] 1. The setting of the oil scraping structure effectively prevents the problem of excessive waste of lubricating oil overflowing outside the sliding holes. Through the grooves opened at both ends of the sliding holes, the sealing rings fixed on the inner walls of the grooves, and the return grooves connecting the grooves with the oil storage structure, the lubricating oil scraped in the grooves can flow back into the oil storage structure, realizing the recycling of the lubricating oil and reducing the frequency of workers adding lubricating oil;

[0022] 2. Through the design of the oil storage structure in this application, the lubricating oil can be stored inside the sliding holes, so as to provide a continuous lubricating effect during the sliding process of the slide rods, which helps to reduce the friction between the slide rods and the sliding holes and extend the service life of the mold. Brief description of the drawings

[0023] Figure 1 is the overall structural schematic diagram of the present utility model;

[0024] Figure 2 is the schematic diagram of the sealing ring of the present utility model;

[0025] Figure 3 is the schematic diagram of the relationship between the groove and the return groove of the present utility model;

[0026] Figure 4 is the schematic diagram of the relationship between the return groove and the solution tank of the present utility model;

[0027] Figure 5 is the schematic diagram of the relationship between the sliding hole and the sealing ring of the present utility model.

[0028] Reference numerals in the figure: 1, reverse buckle module; 2, sliding hole; 3, sliding rod; 4, groove; 5, sealing ring; 6, solution tank; 7, return groove. Specific embodiments

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0030] The present utility model provides two technical solutions:

[0031] Figures 1 to 5 The first embodiment is shown: An opening and demolding reverse buckle mechanism for a two-color injection mold, comprising:

[0032] A reverse buckle module 1, which is used to be installed on the mold to realize reverse injection molding and demolding of materials. Three inclined sliding holes 2 are equidistantly arranged on the reverse buckle module 1;

[0033] Three sliding rods 3, all of which are slidably connected to the inner wall of the sliding hole 2;

[0034] An oil storage structure, which is arranged inside the sliding hole 2 and is used to store more lubricating oil inside the sliding hole 2;

[0035] An oil scraping structure, which is arranged on the sliding hole 2 and is used to prevent the excessive lubricating oil in the sliding hole 2 from overflowing outside the sliding hole 2 with the movement of the sliding rod 3, causing waste.

[0036] The oil scraping structure includes grooves 4 opened at both ends of the sliding hole 2, and a sealing ring 5 is fixed to the inner wall of the groove 4. The sealing ring 5 is made of silicone material. The thickness of the groove 4 is greater than the thickness of the sealing ring 5. The sealing ring 5 does not protrude from the surface of the inverted module 1. The sliding rod 3 is slidably connected to the inner wall of the sealing ring 5. One side of the groove 4 is connected to the oil storage structure through a reflux groove 7. The reflux groove 7 is used to allow the lubricating oil scraped in the groove 4 to flow back into the oil storage structure.

[0037] The setting of the oil scraping structure effectively prevents the problem of excessive lubricating oil overflowing from the sliding hole 2 and causing waste. By opening the grooves 4 at both ends of the sliding hole 2, the sealing ring 5 fixed to the inner wall of the groove 4 and the reflux groove 7 connecting the groove 4 and the oil storage structure, the lubricating oil scraped in the groove 4 can flow back into the oil storage structure, thereby realizing the recycling of the lubricating oil and reducing the frequency of workers adding lubricating oil.

[0038] Figures 2 to 4 A second embodiment is shown, which mainly differs from the first embodiment in that the oil storage structure includes two pairs of solution grooves 6 symmetrically formed on the inner wall of the slide hole 2, each pair of solution grooves 6 are evenly spaced along the axial direction of the slide hole 2, and the two groups of solution grooves 6 are staggered, and the ends of several solution grooves 6 are connected to the reflux groove 7.

[0039] The cross section of the solution tank 6 is designed to be semicircular.

[0040] This application designs an oil storage structure so that lubricating oil can be stored inside the sliding hole 2, thereby providing continuous lubrication during the sliding process of the sliding rod 3, which helps to reduce the friction between the sliding rod 3 and the sliding hole 2 and extend the service life of the mold.

[0041] Working principle:

[0042] The mold opening and demoulding mechanism is installed inside the injection mold, driving the slide bar 3 to move up and down, so that the undercut module 1 is translated in the horizontal direction, thereby driving the mold connected to the undercut module 1 to translate to achieve injection molding and demoulding.

[0043] Lubricating oil is filled in the solution tank 6. When the slide rod 3 is driven to move up and down, the slide rod 3 slides inside the slide hole 2. The slide rod 3 is lubricated by the lubricating oil in the slide hole 2 when passing through the slide hole 2, reducing the friction between the slide rod 3 and the slide hole 2, thereby avoiding excessive friction caused by mold opening; the outer wall of the part of the slide rod 3 leaving the slide hole 2 will be tightly fitted with the sealing ring 5 on the outer wall of the slide rod 3 to scrape off excess lubricating oil, and the scraped lubricating oil enters the groove and then flows back to the solution tank 6 of the slide hole 2 through the reflux groove 7, thereby realizing the recycling of the lubricating oil and reducing the frequency of workers adding lubricating oil.

[0044] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0045] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0046] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mold opening and undercutting mechanism for a two-color injection mold, characterized in that: include: An undercut module (1), the undercut module (1) being used for being installed on a mold to realize undercut injection molding and demoulding of a material, and the undercut module (1) being provided with three inclined sliding holes (2) at equal intervals; Three slide bars (3) are provided and all are slidably connected to the inner wall of the slide hole (2); An oil storage structure, arranged inside the sliding hole (2), the oil storage structure being used to store more lubricating oil inside the sliding hole (2); An oil scraping structure is arranged on the sliding hole (2), and the oil scraping structure is used to prevent excessive lubricating oil in the sliding hole (2) from overflowing out of the sliding hole (2) as the sliding rod (3) moves, causing waste.

2. The mold opening and undercutting mechanism of a two-color injection mold according to claim 1, characterized in that: The oil scraping structure comprises grooves (4) provided at both ends of the sliding hole (2), a sealing ring (5) being fixed on the inner wall of the groove (4), the sliding rod (3) being slidably connected to the inner wall of the sealing ring (5), one side of the groove (4) being connected to the oil storage structure via a reflux groove (7), and the reflux groove (7) being used to allow the lubricating oil scraped in the groove (4) to flow back into the oil storage structure.

3. The mold opening and undercutting mechanism of a two-color injection mold according to claim 2, characterized in that: The oil storage structure comprises two pairs of solution grooves (6) symmetrically formed on the inner wall of the sliding hole (2), each pair of solution grooves (6) are distributed at equal intervals along the axial direction of the sliding hole (2), and the two groups of solution grooves (6) are arranged in a staggered manner, and the ends of several solution grooves (6) are connected to the reflux groove (7).

4. The mold opening and undercutting mechanism of a two-color injection mold according to claim 3, characterized in that: The solution tank (6) has a semicircular cross section.

5. The mold opening and undercutting mechanism of a two-color injection mold according to claim 2, characterized in that: The sealing ring (5) is made of silicone material.

6. The mold opening and undercutting mechanism of a two-color injection mold according to claim 5, characterized in that: The thickness of the groove (4) is greater than the thickness of the sealing ring (5), and the sealing ring (5) does not protrude from the surface of the undercut module (1).

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