Double-injection injection mold with anti-collision structure
By setting the size difference between the guide pin and the inclined guide block in the guide groove, the problem of the slider hitting the first shot product in traditional double injection molds is solved, realizing non-destructive demolding and efficient production.
Patent Information
- Application Number
- CN202520042214.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-07
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-01-07
AI Technical Summary
Traditional double-shot injection molds require the mold to be opened and closed after the first shot is formed. The impact of the slider on the first shot can damage the quality of the finished product.
A pin is set in the guide groove, and the size of the first injection angled guide block is smaller than that of the second angled guide block. When the mold is closed, there is a gap between the pin and the first injection angled guide block, and the slider seat remains stationary. When the mold is closed, the pin abuts against the second injection angled guide block, which drives the slider seat to move for demolding.
It avoids the slider hitting the first product, ensuring the quality of the finished product. It has a simple structure and high production efficiency.
Smart Images
Figure CN223671690U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to injection mold technical field, concretely relates to a double -shot injection mold with anti -collision structure. BACKGROUND
[0002] Double -shot injection mold, also called double -color injection mold or double -material injection mold, is a kind of injection mold technology for producing double -color or double -material product, and it realizes twice forming through the coordinated work of the two sets of molds of double -shot molding machine, and produces double -color product.The basic principle is that raw material A enters the first forming mold through A material pipe, forms the first shot product, then the mold is opened, the product is left in the male mold, and the mold is rotated to be combined with B mold.Then, raw material B is injected into the second forming mold through B material pipe, and the double -shot finished product is completed.
[0003] The traditional mold usually realizes the mold opening and mold closing by the cooperation between inclined guide pillar and sliding block, and the first shot product needs to be opened first after forming and then combined with B mold to carry out secondary injection, so that when the mold is combined with B mold, the sliding block will impact on the first shot product, causes damage to the first shot product, and affects the finished product quality. UTILITY MODEL CONTENTS
[0004] The utility model aims at solving the problems that the traditional double -shot injection mold needs to be opened first after the first shot product is formed and then combined to carry out secondary injection, the sliding block impacts on the first shot product when combined, causes damage to the product, and affects the finished product quality, and the utility model provides a double -shot injection mold with anti -collision structure.
[0005] The utility model adopts the technical scheme: a double -shot injection mold with anti -collision structure, characterized by comprising first shot movable mold, second shot movable mold and static mold, the static mold is provided with sliding block seat, the sliding block seat is provided with guide groove, the first shot movable mold and second shot movable mold are respectively provided with first shot inclined guide block and second shot inclined guide block that are inserted and cooperated with the guide groove, the size of the first shot inclined guide block is less than the size of the second shot inclined guide block, the guide groove is provided with a needle.
[0006] When the first shot movable mold is combined with the static mold, there is gap between the needle and the first shot inclined guide block, and when the second shot movable mold is combined with the static mold, the needle abuts against the inclined surface of the second shot inclined guide block.
[0007] Optionally, the sliding block seat is provided with mounting groove, the mounting groove is communicated with the guide groove, one end of the needle is located in the mounting groove, and the other end of the needle extends into the guide groove.
[0008] Optionally, a spring is arranged in the mounting groove to provide elastic force to the push pin, so that the push pin can stably abut against the inclined surface of the second shooting guide block, one end of the spring is connected to one end of the push pin in the mounting groove, and the other end of the spring abuts against the inner wall of the mounting groove.
[0009] Optionally, the number of the push pin is two, the two push pins are symmetrically arranged on the two sides of the guide groove, and when the second shooting movable mold is combined with the static mold, the two push pins respectively abut against the two sides of the inclined surface of the second shooting guide block.
[0010] Optionally, the first shooting movable mold and the second shooting movable mold are respectively provided with a first shooting movable mold core and a second shooting movable mold core, the static mold is provided with a static mold core, the number of the slider block seat is two, the two slider block seats are slidingly arranged on the two sides of the static mold core, and when the first shooting movable mold is combined with the static mold, the first shooting movable mold core, the static mold core and the two slider block seats cooperatively form a first shooting forming cavity, and when the second shooting movable mold is combined with the static mold, the second shooting movable mold core, the static mold core and the two slider block seats cooperatively form a second shooting forming cavity.
[0011] Optionally, the guide block comprises a fixed part and an inclined part, the fixed part is fixedly arranged on one side of the first shooting movable mold core or the second shooting movable mold core, the top end of the inclined part is fixedly connected to the bottom of the fixed part, and the bottom end of the inclined part is arranged to be inclined downward away from the first shooting movable mold core or the second shooting movable mold core.
[0012] Optionally, the guide groove penetrates through the upper and lower sides of the slider block seat, the static mold is provided with a containing groove corresponding to the position of the guide groove, and when the first shooting movable mold or the second shooting movable mold is combined with the static mold, the bottom end of the inclined part of the guide block penetrates through the guide groove and extends into the containing groove.
[0013] Optionally, the two sides of the static mold core are provided with sliding rails, the two slider block seats are slidingly arranged on the two sliding rails respectively, and the two slider block seats can slide along the length direction of the sliding rails to the direction of approaching or moving away from each other.
[0014] Optionally, the number of the first shooting forming cavity and the second shooting forming cavity is multiple.
[0015] After the above technical scheme is adopted, the present application has the following beneficial effects:
[0016] The application sets the size of the first injection inclined guide block to be smaller than the size of the second inclined guide block, so that when the first injection movable mold and the static mold are combined, there is a gap between the needle and the first injection inclined guide block, so that when the first injection product is formed and the mold is opened, the first injection inclined guide block cannot drive the slider block to move, that is, the slider block remains stationary when the first injection product is formed and the mold is opened, when the second injection movable mold and the static mold are combined, the needle abuts against the inclined surface of the second injection inclined guide block, so that when the second injection product is formed and the mold is opened, the second injection inclined guide block can drive the slider block to move, thereby facilitating the ejection of the second injection product. Compared with the traditional double-shot injection mold, the slider block in the present application remains stationary when the first injection product is formed and the mold is opened, and the slider block can move under the cooperation of the second injection inclined guide block, the guide groove and the needle when the second injection product is formed and the mold is opened, thereby avoiding the situation that the first injection product is damaged by the slider block, and the structure is simple and practical. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor under the premise of the drawings.
[0018] Figure 1 is a cross-sectional view when the first injection movable mold and the static mold are combined in the present embodiment;
[0019] Figure 2 is Figure 1 is a partial display diagram of the first injection movable mold in the present embodiment;
[0020] Figure 3 is a schematic diagram for showing the cooperation relationship between the first injection inclined guide block, the guide groove, the slider block and the ejector pin in the present embodiment;
[0021] Figure 4 is a cross-sectional view when the second injection movable mold and the static mold are combined in the present embodiment;
[0022] Figure 5 is Figure 4 is a partial display diagram of the second injection movable mold in the present embodiment;
[0023] Figure 6 is a schematic diagram for showing the cooperation relationship between the first injection inclined guide block, the guide groove, the slider block and the ejector pin in the present embodiment.
[0024] 10, first injection mold; 11, first inclined guide block; 111, fixed part; 112, inclined part; 12, first injection mold core; 20, second injection mold; 21, second inclined guide block; 22, first injection mold core; 30, static mold; 31, slider seat; 311, guide groove; 312, mounting groove; 313, spring; 314, accommodating groove; 32, static mold core; 33, slide rail; 40, needle; 50, first injection molding cavity; 60, second injection molding cavity; 100, first injection product; 200, second injection product. DETAILED DESCRIPTION
[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Figures 1-6 It is obvious that 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 labor fall within the protection scope of the present application.
[0026] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications also change accordingly.
[0027] In addition, if the embodiments of the present application involve descriptions such as "first injection" and "second injection", the descriptions of "first injection" and "second injection" are only for description purposes, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first injection" and "second injection" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel schemes, taking "A and / or B" as an example, including A scheme, or B scheme, or A and B schemes. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.
[0028] The present embodiment relates to a double-injection mold with an anti-collision structure, referring to Figures 1-6, including a first injection mold 10, a second injection mold 20 and a static mold 30, wherein the static mold 30 is provided with a slider seat 31, the slider seat 31 is provided with a guide groove 311, the first injection mold 10 and the second injection mold 20 are respectively provided with a first injection inclined guide block 11 and a second injection inclined guide block 21 matched with the guide groove 311, the size of the first injection inclined guide block 11 is smaller than the size of the second injection inclined guide block 21, and the guide groove 311 is provided with a needle 40.
[0029] It should be noted that the injection mold provided by the embodiment is a double injection mold, that is, the final product can be obtained after two injection molding. The main working process is as follows: first step: first injection molding, the first injection mold 10 and the static mold 30 are combined, and the first injection product 100 plastic in a molten state is injected; second step: first mold opening, after the first injection product 100 plastic in a molten state is formed into the first injection product 100, the mold is opened, and the first injection mold 10 and the static mold 30 are separated; third step: second injection molding, the second injection mold 20 and the static mold 30 are combined, and the second injection product 200 plastic in a molten state is injected; fourth step: second mold opening, after the injected second injection product 200 plastic is cooled and formed, the mold is opened, and the second injection mold 20 and the static mold 30 are separated, and a double injection product is obtained after ejection demolding.
[0030] Through the setting of the first injection inclined guide block 11, the second injection inclined guide block 21, the guide groove 311 and the needle 40, when the first injection product 100 is formed and the mold is opened, there is a gap between the first injection inclined guide block and the needle 40 when the first injection mold 10 and the static mold 30 are combined, so that the first injection inclined guide block is difficult to drive the slider seat 31 to move, that is, when the mold is opened for the first time, the slider seat 31 remains stationary. When the second injection mold 20 and the static mold 30 are combined, the inclined surface of the needle 40 and the second injection inclined guide block 21 abuts, so that when the mold is opened for the second time, the second injection inclined guide block 21 can drive the slider seat 31 to move, thereby facilitating the ejection demolding of the second injection product 200. Compared with the traditional double injection mold, when the mold is opened for the first time (first mold opening) after the first injection product 100 is formed, the slider seat 31 remains stationary, thereby avoiding the situation that the slider seat 31 is injured when the mold is combined for the second time.
[0031] Further, the slider seat 31 is provided with a mounting groove 312, the mounting groove 312 is communicated with the guide groove 311, and the communication between the mounting groove 312 and the guide groove 311 can be realized by providing a through hole therebetween, one end of the needle 40 is located in the mounting groove 312, and the other end of the needle 40 extends into the guide groove 311.
[0032] In the embodiment, the ejector pin 40 is arranged in the guide groove 311 transversely, so that when the second shot movable mold 20 is combined with the static mold 30, the ejector pin 40 can abut against the inclined surface of the second shot inclined guide block 21, so that when the second shot is opened, the second shot inclined guide block 21 drives the slide block seat 31 to move under the cooperation of the guide groove 311.
[0033] Further, the mounting groove 312 is provided with a spring 313 for providing elastic force to the ejector pin 40, so that the ejector pin 40 can stably abut against the inclined surface of the second shot inclined guide block 21. One end of the spring 313 is arranged on one end of the ejector pin 40 in the mounting groove 312, and the other end of the spring 313 abuts against the inner wall of the mounting groove 312.
[0034] It can be understood that the spring 313 continuously provides elastic force to the ejector pin 40, so that the ejector pin 40 can stably abut against the second shot inclined guide block 21, so that when the second shot product 200 is opened after being formed, the second shot inclined guide block 21 can stably drive the slide block seat 31 to slide.
[0035] Further, in the embodiment, the number of the ejector pin 40 is two, and the two ejector pins 40 are symmetrically arranged on both sides of the guide groove 311, and when the second shot movable mold 20 is combined with the static mold 30, the two ejector pins 40 abut against both sides of the inclined surface of the second shot inclined guide block 21, respectively.
[0036] It can be understood that by arranging the number of the ejector pin 40 in the guide groove 311 as two, when the second shot movable mold 20 is combined with the static mold 30, the two ejector pins 40 abut against both sides of the inclined surface of the second shot inclined guide block 21, respectively, so that when the second shot is opened, the second shot inclined guide block 21 can stably drive the slide block seat 31 to move under the action of the two ejector pins 40.
[0037] Further, the first shot movable mold 10 and the second shot movable mold 20 are respectively provided with a first shot movable mold core 12 and a second shot movable mold core 22, and the static mold 30 is provided with a static mold core 32. The number of the slide block seat 31 is two, and the two slide block seats 31 are slidingly arranged on both sides of the static mold core 32. The two slide block seats 31 can simultaneously move towards or away from the static mold core 32. When the first shot movable mold 10 is combined with the static mold 30, the first shot movable mold core 12, the static mold core 32 and the two slide block seats 31 cooperate to form a first shot forming cavity 50. When the second shot movable mold 20 is combined with the static mold 30, the second shot movable mold core 22, the static mold core 32 and the two slide blocks cooperate to form a second shot forming cavity 60.
[0038] By adopting the above arrangement, when the first injection mold 10 and the static mold 30 are closed, the first injection mold core 12, the static mold core 32, and the two slider seats 31 cooperate to form a first injection molding cavity 50 for molding a first injection product 100, and when the second injection mold 20 and the static mold 30 are closed, the second injection mold core 22, the static mold core 32, and the two slider seats 31 cooperate to form a second injection molding cavity 60 for molding a second injection product 200.
[0039] Further, the first injection inclined guide block 11 and the second injection inclined guide block 21 each include a fixed portion 111 and an inclined portion 112, the fixed portion 111 is fixedly installed on one side of the first injection mold core 12 or the second injection mold core 22, the top end of the inclined portion 112 is fixedly connected to the bottom of the fixed portion 111, and the bottom end of the inclined portion 112 is arranged downwardly and away from the first injection mold core 12 or the second injection mold core 22.
[0040] In the embodiment, the number of the first injection inclined guide block 11 and the second injection inclined guide block 21 is two, the two first injection inclined guide blocks 11 and the two second injection inclined guide blocks 21 are respectively arranged symmetrically on the two sides of the first injection mold core 12 and the second injection mold core 22, and the number of the guide grooves 311 also corresponds to the first injection inclined guide block 11 and the second injection inclined guide block 21, so that the first injection mold 10 and the static mold 30 are stably opened and closed under the guidance of the first inclined guide block and the guide groove 311, and the second injection mold 20 and the static mold 30 are stably opened and closed under the guidance of the second inclined guide block and the guide groove 311.
[0041] Further, the guide groove 311 penetrates the upper and lower sides of the slider seat 31, and the static mold 30 is provided with a receiving groove 314 at a position corresponding to the guide groove 311, when the first injection mold 10 or the second injection mold 20 is closed with the static mold 30, the bottom end of the inclined portion 112 of the first injection inclined guide block 11 or the second injection inclined guide block 21 extends into the receiving groove 314 after penetrating the guide groove 311.
[0042] It can be understood that, by the arrangement of the receiving groove 314, when the first injection mold 10 or the second injection mold 20 is closed with the static mold 30, the bottom end of the inclined portion 112 of the first injection inclined guide block 11 or the second injection inclined guide block 21 extends into the receiving groove 314 after penetrating the guide groove 311, thereby realizing accurate control of the moving stroke of the slider seat 31.
[0043] Further, the static mold core 32 is provided with a slide rail 33 on each side, and the two slider seats 31 are respectively slidably arranged on the two slide rails 33, and the two slider seats 31 can move towards each other or away from each other along the length direction of the slide rail 33.
[0044] Through the setting of the slide rail 33, the two slide block seats 31 can stably move towards the direction of approaching or moving away from the static die core 32, thereby realizing the stable closing and opening of the first injection mold 10 and the second injection mold 20 and the static mold.
[0045] Further, the number of the first injection molding cavities 50 and the second injection molding cavities 60 is multiple. In the embodiment, the number of the first injection molding cavities 50 and the second injection molding cavities 60 is four, and in other embodiments, the number of the first injection molding cavities 50 and the second injection molding cavities 60 can also be one, two, three, five, etc., which can be increased or reduced according to the actual situation, and is not limited here.
[0046] It can be understood that the number of the first injection molding cavities 50 and the second injection molding cavities 60 is set to multiple, so that multiple finished products can be obtained at one time after completing the secondary injection, improving the production efficiency.
[0047] The above is only used to illustrate the technical scheme of the utility model and is not limited, and other modifications or equivalent replacements of the technical scheme of the utility model made by those skilled in the art should be covered in the scope of the claims of the utility model.
Claims
1. A two-shot injection mold having an anti-mar structure, characterized by, The utility model provides a kind of injection mould, including first injection mould (10), second injection mould (20) and static mould (30), the static mould (30) is provided with slider seat (31), the slider seat (31) is opened with guide slot (311), the first injection mould (10) and second injection mould (20) are respectively provided with first injection inclined guide block (11) and second injection inclined guide block (21) with guide slot (311) plug-in cooperation, the size of first injection inclined guide block (11) is less than the size of second injection inclined guide block (21), guide slot (311) is provided with needle (40) inside guide slot (311); When the first injection mould (10) and static mould (30) are closed, there is gap between needle (40) and first injection inclined guide block (11), and when the second injection mould (20) and static mould (30) are closed, needle (40) and the inclined surface of second injection inclined guide block (21) are in abutment.
2. The two-shot injection mold with an anti-collision structure according to claim 1, wherein, The slider seat (31) is opened with mounting groove (312), the mounting groove (312) is communicated with guide slot (311), one end of needle (40) is located in mounting groove (312), the other end of needle (40) is inserted into guide slot (311).
3. The two-shot injection mold with an anti-collision structure according to claim 2, wherein, The mounting groove (312) is provided with spring (313) for providing elastic force to needle (40), so that needle (40) can stably abut with the inclined surface of second injection inclined guide block (21), one end of spring (313) is connected to one end of needle (40) located in mounting groove (312), the other end of spring (313) is in abutment with the inner wall of mounting groove (312).
4. The two-shot injection mold with an anti-collision structure according to claim 1, wherein, The number of needle (40) is two, two needle (40) are symmetrically arranged on both sides of guide slot (311), and when the second injection mould (20) and static mould (30) are closed, two needle (40) are in abutment with both sides of the inclined surface of second injection inclined guide block (21) respectively.
5. The two-shot injection mold with an anti-collision structure according to claim 1, wherein, The first injection mould (10) and second injection mould (20) are respectively provided with first injection mould kernel (12) and second injection mould kernel (22), the static mould (30) is provided with static mould kernel (32), the number of slider seat (31) is two, two slider seats (31) are slidingly arranged on both sides of static mould kernel (32), and when the first injection mould (10) and static mould (30) are closed, first injection mould kernel (12), static mould kernel (32) and two slider seats (31) cooperate to form first injection forming cavity (50), when the second injection mould (20) and static mould (30) are closed, second injection mould kernel (22), static mould kernel (32) and two slider seats (31) cooperate to form second injection forming cavity (60).
6. The two-shot injection mold with an anti-collision structure according to claim 5, wherein, The first inclined guide block (11) and the second inclined guide block (21) each comprise a fixed part (111) and an inclined part (112), the fixed part (111) is fixedly installed on one side of the first movable die core (12) or the second movable die core (22), the top end of the inclined part (112) is fixedly connected to the bottom of the fixed part (111), and the bottom end of the inclined part (112) is arranged in an inclined downward manner away from the first movable die core (12) or the second movable die core (22).
7. The two-shot injection mold with an anti-collision structure according to claim 6, wherein, The guide groove (311) penetrates through the upper and lower sides of the sliding block seat (31), the static die (30) is provided with a containing groove (314) at a position corresponding to the guide groove (311), when the first movable die (10) or the second movable die (20) is combined with the static die (30), the bottom end of the inclined part (112) of the first inclined guide block (11) or the second inclined guide block (21) is inserted into the containing groove (314) after penetrating through the guide groove (311).
8. The two-shot injection mold with an anti-collision structure according to claim 5, wherein, The static die core (32) is provided with sliding rails (33) on both sides, the two sliding block seats (31) are respectively slidingly arranged on the two sliding rails (33), and the two sliding block seats (31) can slide along the length direction of the sliding rails (33) to approach or move away from each other.
9. The two-shot injection mold with an anti-collision structure according to claim 6, wherein, The number of the first injection molding cavities (50) and the second injection molding cavities (60) is multiple.