Injection mold

Abstract

The utility model belongs to the technical field of injection molds, and particularly relates to an injection mold which comprises a movable mold body, a movable mold core and a movable mold core, a movable mold core is arranged on the movable mold frame, an insert hole is formed in the movable mold core, and a mounting hole penetrating through the movable mold core is formed in the bottom of the insert hole; the insert body penetrates through the mounting hole and extends into the insert hole, and an inserting hole is formed in the insert body; the ejector pin body is inserted into the insertion hole, and in an initial state, the end part of the ejector pin body is flush with the end part of the insert body; in short, the insert body is provided with the insertion hole, the ejector pin body is inserted into the insertion hole, and the end part of the ejector pin body is flush with the insert body in an initial state (and injection of molten plastic after mold closing), so that the end surface of the ejector pin body serves as a glue surface, and injection molding of a product is completed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to injection mould technical field, specifically relates to YYY, especially a kind of. BACKGROUND

[0002] Plastic mould is matched with plastic forming machine in plastic processing industry, and the tool that gives plastic product with complete configuration and accurate size.Because plastic variety and processing method are numerous, the structure of plastic forming machine and plastic product is also various, and the type and structure of plastic mould are also various.

[0003] Conventional plastic mould includes movable mould and fixed mould, after its clamping, after injecting molten plastic inwards, product is formed after cooling, and product is demoulded by ejector pin;Wherein, when complex structure needs to be formed, insert needs to be used, but closely arranged insert can lead to the installation of ejector pin.

[0004] Therefore, how to avoid the use of insert leading to the installation of ejector pin is the technical problem to be solved in the field.

[0005] It should be noted that the above information disclosed in the background section is only used to understand the background of the present application, and therefore, the above description is not considered to constitute the information of the prior art. CONTENT OF UTILITY MODEL

[0006] The present application provides at least a kind of injection mould.

[0007] In the first aspect, the present application provides an injection mould, comprising: a movable mould body comprising a movable mould frame; a movable mould kernel is arranged on the movable mould frame, an insert hole is formed in the movable mould kernel, and a mounting hole penetrating the movable mould kernel is formed in the bottom of the insert hole; an insert body, the insert body extends into the insert hole through the mounting hole, and an insertion hole is formed in the insert body; and an ejector pin body is inserted into the insertion hole, and in the initial state, the end of the ejector pin body is flush with the end of the insert body.

[0008] In an optional embodiment, the side wall of the insert body is gap-fitted with the insert hole to form an exhaust gap, and the gap is 0.01mm-0.025mm.

[0009] In an optional embodiment, a glue position surface is arranged on the insert body, and an exhaust ring groove is formed in the circumferential direction of the side wall of the insert body, and the distance between the end surface of the glue position surface and the exhaust ring groove is 2.5-4mm.

[0010] In an optional embodiment, an exhaust groove is formed in the axial direction of the side wall of the insert body, one end of the exhaust groove penetrates the tail end of the insert body, and the other end of the exhaust groove communicates with the exhaust ring groove.

[0011] In an alternative embodiment, the movable die body further comprises a base plate and an ejector plate; a pair of supporting blocks are arranged on the side of the base plate, and the movable die frame is connected with the supporting blocks; the ejector plate is slidingly arranged between the base plate and the movable die frame, and the ejector plate is located inside the base plate, and the end of the ejector body is connected to the ejector body.

[0012] In an alternative embodiment, a T-shaped groove is arranged on the side wall of the ejector plate; a hydraulic cylinder is arranged on the side wall of the movable die frame, and the end of the piston rod of the hydraulic cylinder is clamped in the T-shaped groove to drive the ejector plate to slide.

[0013] In an alternative embodiment, the ejector plate comprises a first top plate and a second top plate arranged in close contact; a through hole is arranged on the first top plate, a placing counterbore is arranged at the end of the through hole close to the second top plate, the placing counterbore communicates with the through hole, the ejector body is inserted into the through hole, the end of the ejector body is embedded in the placing counterbore, and the embedded end of the ejector body is flush with the side of the first top plate.

[0014] In an alternative embodiment, a limiting rubber block is arranged on the side wall of the ejector plate close to the movable die frame.

[0015] In an alternative embodiment, a supporting column is fixedly connected to the side wall of the base plate, and the supporting column penetrates through the ejector plate and abuts against the movable die frame.

[0016] The beneficial effects of the utility model are that the injection mold inserts the ejector body into the insertion hole arranged on the insert body, the end of the ejector body is flush with the insert body in the initial state (and after the mold is closed and the molten plastic is injected), the end surface of the ejector body serves as a glue position surface, and the injection molding of the product is completed.

[0017] Other features and advantages of the utility model will be described in the subsequent specification, and some of them will become apparent from the specification, or will be understood by implementing the utility model. The purposes and other advantages of the utility model are realized and obtained by the structures specially pointed out in the specification, claims and drawings.

[0018] In order to make the above purposes, features and advantages of the utility model more obvious and easy to understand, the preferred embodiments are described in detail below, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description, obviously, the drawings described in the following are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the premise of the drawings.

[0020] Figure 1 A perspective view of an injection mold is provided for the embodiments of the present disclosure.

[0021] Figure 2 A perspective view of a movable mold core is provided for the embodiments of the present disclosure.

[0022] Figure 3 A structural schematic view of an insert body and a thimble body is provided for the embodiments of the present disclosure.

[0023] Figure 4 A perspective view of an injection mold is provided for the embodiments of the present disclosure.

[0024] Figure 5 A sectional view of a thimble plate is provided for the embodiments of the present disclosure.

[0025] In the drawings:

[0026] 1, movable mold body;

[0027] 11, movable mold frame; 11a, movable mold core; 11b, insert hole; 11c, mounting hole; 11d, insert body; 11e, glue position surface; 11f, plug hole; 11g, exhaust ring groove; 11h, exhaust groove; 11i, hydraulic cylinder;

[0028] 12, base plate; 12a, support block; 12b, support column;

[0029] 13, thimble plate; 13a, thimble body; 13b, T-shaped groove; 13c, first top plate; 13d, second top plate; 13e, through hole; 13f, placing counterbore; 13g, limiting glue block. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the present application will be described clearly and completely in conjunction with the drawings, obviously, the described embodiments are some embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0031] In this document, when referred to as a first component being on a second component, it can mean that the first component can be formed directly on the second component, or a third component can be interposed between the first component and the second component. Also, in the drawings, the thickness of components can be exaggerated or reduced for the sake of effective description of the technical content.

[0032] The terminology used herein is for the purpose of describing particular example configurations only and is not intended to be limiting. As used herein, the singular forms "a," "an," and "the" can be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having," are inclusive and therefore specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order in which they are described, unless specifically identified as an order of performance. Additional or alternative steps can be employed.

[0033] As used herein, the phrases "in an embodiment," "according to an embodiment," "in some embodiments," and the like generally mean the particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of the present disclosure. Thus, appearances of such phrases in various places in the specification do not necessarily all refer to the same embodiment. As used herein, the terms "example," "for example," and the like are utilized herein to mean "serving as an example, instance, or illustration." Any implementation, aspect, or design described herein as an "example" or "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations, aspects, or designs. Rather, the term "example" is intended to mean "an example of something." The terms "comprise(s)," "comprising," "include(s)," and "including," as well as variations thereof, are intended to be open-ended and allow for items or components to be added to, or to be excluded from, the subject matter.

[0034] It is found through research that the prior art cannot install the ejector body after installing a large number of insert bodies on the movable die core, and the demolding of the finished product is completed, which is a problem and purpose to be solved by the utility model.

[0035] Based on the above research, the utility model embodiment provides an injection mold, which inserts the ejector body into the insert body, and works with the insert body to complete the molding of the finished product.

[0036] The defects of the above scheme are the results obtained by the utility model person after practice and careful study, therefore, the discovery process of the above problems and the solutions proposed by the utility model to the above problems in this paper should be the contribution of the utility model person to the utility model in the process of the utility model.

[0037] It should be noted that like numerals and letters refer to like items throughout the several views, and once an item is defined in one view, it should not require further defining and explaining in subsequent views.

[0038] Some embodiments of the present application will be described in detail with reference to the drawings. In the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

[0039] Referring to Figures 1 to 5 , shows an injection mold, comprising: a movable mold body 1, comprising a movable mold frame 11; The movable mold frame 11 is provided with a movable mold kernel 11a, the movable mold kernel 11a is provided with an insert hole 11b, the bottom of the insert hole 11b is provided with a mounting hole 11c penetrating the movable mold kernel 11a; The insert body 11d penetrates the mounting hole 11c and extends into the insert hole 11b, the insert body 11d is provided with a plug-in hole 11f; And, the ejector pin body 13a is inserted into the plug-in hole 11f, in the initial state, the end of the ejector pin body 13a is flush with the end of the insert body 11d; In short, by providing a plug-in hole 11f on the insert body 11d, the ejector pin body 13a is inserted into the plug-in hole 11f, in the initial state (and after injection of molten plastic after clamping) The end of the ejector pin body 13a is flush with the insert body 11d, so that the end surface of the ejector pin body 13a serves as a glue position surface 11e, and the injection molding of the product is completed.

[0040] In some embodiments, the side wall of the insert body 11d is gap fitted with the insert hole 11b to form an exhaust gap, and the gap is 0.01mm-0.025mm; In short, when injecting molten plastic, the gas in the cavity needs to be discharged, because the flowability of the gas and the molten plastic is different, the exhaust is completed through the gap between the side wall of the insert body 11d and the insert hole 11b, and the gap needs to be controlled within a reasonable range, too large will cause the molten plastic to enter, affect the molding of the product, too small will cause the gas to be unable to be discharged smoothly.

[0041] In some embodiments, the insert body 11d is provided with a glue position surface 11e, the side wall of the insert body 11d is provided with an exhaust ring groove 11g in the circumferential direction, and the distance between the exhaust ring groove 11g and the end surface of the glue position surface 11e is 2.5-4mm; In short, in order to avoid the gas needing to pass through the whole insert body 11d, resulting in low exhaust efficiency, therefore, the exhaust ring groove 11g is provided on the side wall of the insert body 11d, and the exhaust ring groove 11g and the glue position surface 11e should not be too tight, otherwise it will cause the overflow of the molten plastic.

[0042] In some embodiments, the side wall of the insert body 11d is provided with an exhaust groove 11h in the axial direction, one end of the exhaust groove 11h penetrates the tail end of the insert body 11d, and the other end of the exhaust groove 11h communicates with the exhaust ring groove 11g; in short, in order to further improve the exhaust efficiency, the exhaust groove 11h is provided in the side wall of the insert body 11d in the axial direction and communicates with the exhaust ring groove 11g.

[0043] In some embodiments, the movable die body 1 further comprises a bottom plate 12 and an ejector plate 13; the side surface of the bottom plate 12 is provided with a pair of support blocks 12a, the movable die frame 11 is connected with the support blocks 12a; the ejector plate 13 is slidingly arranged between the bottom plate 12 and the movable die frame 11, and the ejector plate 13 is located inside the bottom plate 12, and the end of the ejector body 13a is connected to the ejector body 13a; in short, the bottom plate 12, the support blocks 12a and the movable die frame 11 enclose a space for the sliding of the ejector plate 13, and the ejector body 13a is installed on the ejector plate 13 to complete the ejection and reset of the ejector body 13a.

[0044] In some embodiments, the side wall of the ejector plate 13 is provided with a T-shaped groove 13b; the side wall of the movable die frame 11 is provided with a hydraulic cylinder 11i, and the end of the piston rod of the hydraulic cylinder 11i is clamped in the T-shaped groove 13b to drive the sliding of the ejector plate 13; in short, the sliding of the ejector plate 13 is completed by the extension and retraction of the piston rod of the hydraulic cylinder 11i, which is simple and reliable.

[0045] In some embodiments, the ejector plate 13 comprises a first top plate 13c and a second top plate 13d arranged in close contact; the first top plate 13c is provided with a through hole 13e, one end of the through hole 13e close to the second top plate 13d is provided with a placing counterbore 13f, the placing counterbore 13f communicates with the through hole 13e, the ejector body 13a is inserted into the through hole 13e, the end of the ejector body 13a is embedded in the placing counterbore 13f, and the embedded end of the ejector body 13a is flush with the side surface of the first top plate 13c; in short, the first top plate 13c and the second top plate 13d are arranged in close contact, the ejector body 13a is inserted into the through hole 13e, the end of the ejector body 13a is embedded in the placing counterbore 13f, and the end of the ejector body 13a is respectively in close contact with the second top plate 13d and the hole bottom of the square support hole, so that the ejector body 13a cannot relatively displace with the ejector plate 13, and the ejector body 13a and the insert body 11d are well matched to form the glue surface 11e.

[0046] In some embodiments, the ejector plate 13 is provided with a limiting glue block 13g close to the side wall of the movable die frame 11; in short, when the ejector plate 13 is close to the movable die frame 11, the limiting glue block 13g will first contact the side wall of the movable die frame 11 to play a buffering role.

[0047] In some embodiments, the side wall of the bottom plate 12 is fixedly connected with a support column 12b, the support column 12b penetrates the ejector plate 13 and abuts against the movable mold frame 11; in short, a plurality of support columns 12b are arranged between the bottom plate 12 and the movable mold frame 11, so as to improve the strength of the bottom plate 12 and the movable mold frame 11, and avoid deformation, thereby avoiding damage of the injection mold.

[0048] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0049] In the description of the present application, it should be explained that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, terms such as "first", "second" and other numerical terms are used herein, unless otherwise explicitly indicated herein. Therefore, the first element, component, region, layer or section discussed above can be referred to as the second element, component, region, layer or section without departing from the teachings of the example embodiments.

[0050] Spatially relative terms, such as "inner", "outer", "below", "below", "lower", "above", "upper", and the like, can be used herein for ease of describing an element or feature's relationship to another element or feature as illustrated in the figures. In addition to the orientation depicted in the figures, the spatially relative terms can be intended to encompass different orientations of the device in use or operation. For example, if the device in the figure is turned over, an element described as "below" or "under" the other element or feature would be oriented "above" the other element or feature. Therefore, the example term "below" can encompass both the above and below orientations. The device can be oriented in other ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein will be interpreted accordingly.

[0051] In the above discussion, unless otherwise specified, the terms "about", "approximately", "substantially" and the like mean a + / - 10% variation of the value when used to describe numerical values.

[0052] With the above ideal embodiments according to the present application as the inspiration, through the above description, relevant staff can make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited to the content in the specification, and the technical scope must be determined according to the scope of claims.

Claims

1. An injection mold characterized in that, The injection mold comprises: a movable mold body (1) comprising a movable mold frame (11); a movable mold core (11a) is arranged on the movable mold frame (11), and a insert hole (11b) is formed in the movable mold core (11a); a mounting hole (11c) penetrating through the movable mold core (11a) is formed in the bottom of the insert hole (11b); an insert body (11d) extends into the insert hole (11b) through the mounting hole (11c), and an insertion hole (11f) is arranged on the insert body (11d); and a ejector pin body (13a) is inserted into the insertion hole (11f), and the end of the ejector pin body (13a) is flush with the end of the insert body (11d) in the initial state.

2. The injection mold of claim 1, wherein the side wall of the insert body (11d) is in clearance fit with the insert hole (11b) to form an exhaust clearance, and the clearance is 0.01mm-0.025mm.

3. The injection mold of claim 1, wherein a glue position surface (11e) is arranged on the insert body (11d), and an exhaust ring groove (11g) is formed in the side wall of the insert body (11d) in the circumferential direction, and the distance between the end surface of the glue position surface (11e) and the exhaust ring groove (11g) is 2.5-4mm.

4. The injection mold of claim 3, wherein an exhaust groove (11h) is formed in the side wall of the insert body (11d) in the axial direction, one end of the exhaust groove (11h) penetrates through the tail end of the insert body (11d), and the other end of the exhaust groove (11h) is communicated with the exhaust ring groove (11g).

5. The injection mold of claim 1, wherein the movable mold body (1) further comprises a bottom plate (12) and an ejector pin plate (13); a pair of support blocks (12a) are arranged on the side surface of the bottom plate (12), and the movable mold frame (11) is connected with the support blocks (12a); the ejector pin plate (13) is slidingly arranged between the bottom plate (12) and the movable mold frame (11), and the ejector pin plate (13) is located on the inner side of the bottom plate (12), and the end of the ejector pin body (13a) is connected to the ejector pin plate (13).

6. The injection mold of claim 5, wherein a T-shaped groove (13b) is formed in the side wall of the ejector pin plate (13); a hydraulic cylinder (11i) is arranged on the side wall of the movable mold frame (11), and the end of the piston rod of the hydraulic cylinder (11i) is clamped in the T-shaped groove (13b) to drive the ejector pin plate (13) to slide.

7. The injection mold of claim 5, wherein the ejector pin plate (13) comprises a first top plate (13c) and a second top plate (13d) which are arranged in abutment. The first top plate (13c) is provided with a through hole (13e), one end of the through hole (13e) is provided with a placing counterbore (13f) close to the second top plate (13d), the placing counterbore (13f) is communicated with the through hole (13e), the needle body (13a) is inserted into the through hole (13e), the end of the needle body (13a) is embedded in the placing counterbore (13f), and the embedded end of the needle body (13a) is flush with the side surface of the first top plate (13c).

8. The injection mold of claim 5, wherein, The needle plate (13) is provided with a limiting rubber block (13g) close to the side wall of the movable mold frame (11).

9. The injection mold of claim 5, wherein, The side wall of the bottom plate (12) is fixedly connected with a supporting column (12b), and the supporting column (12b) abuts against the movable mold frame (11) after penetrating through the needle plate (13).

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