Sliding block sprue separating mechanism and injection molding equipment
Through the designed slider gate disengagement mechanism, the slider is moved in the way that the slider moves, and the slider of the slider is moved in the slider of the slider, so that the combination of the slider and the latent gate is realized, which solves the sliding problem existing in the prior art.
Patent Information
- Application Number
- CN202422836958.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-20
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-11-20
AI Technical Summary
In injection molds, the combined use of a slider structure and a latent gate structure results in a movement conflict between the ejector structure and the slider structure, affecting the surface quality of the product.
A slider gate separation mechanism is designed, including a slider, a first ejector assembly and a second ejector assembly. The mechanism is modified to move the slider structure and the latent gate structure. The slider structure and the latent gate structure are combined and the movement of the slider is realized by sliding the slider, thereby realizing the separation of the slider structure and the latent gate.
The compatible ejection function of the slider and the latent gate is realized, which reduces the demand for additional power source, reduces the modification cost, and is easy to modify and promote in existing injection molding equipment.
Smart Images
Figure CN223354831U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of injection molding, in particular to a slider gate separation mechanism and injection molding equipment. Background Art
[0002] In injection molds, when product surface texture requirements are high, a latent gate is often used to make the mold's glue entry point invisible on the part's sidewall, resulting in a smooth, flat molded product. However, this latent gate requires ejection with an ejector pin. When the latent gate's position is used in conjunction with a slider structure, the slider moves forward or backward laterally in the opposite direction of the ejector pin, creating a conflict between the ejector pin and the slider structure. Utility Model Content
[0003] In view of one of the deficiencies of the prior art, the utility model provides a slider gate separation mechanism and an injection molding device, which solves the problem of combined use of a slider structure and a latent gate structure.
[0004] To achieve the above-mentioned object, the present invention provides the following technical solution: a slider gate separation mechanism, comprising an upper mold and a lower mold, wherein the upper mold can move toward or away from the lower mold, and the opening and closing direction of the upper mold and the lower mold is a first movement direction, and further comprising:
[0005] A slider is provided between the upper die and the lower die, the slider is slidably connected to the lower die, and the sliding direction of the slider is perpendicular to the first motion direction;
[0006] a latent gate, arranged on the slider;
[0007] A first ejector assembly is slidably connected to the lower mold, and its sliding direction is parallel to the first movement direction; the first ejector of the first ejector assembly can extend into the slider;
[0008] The second ejector assembly is arranged inside the slider and includes a second ejector. When the slider moves in the mold opening state, the first ejector can push the second ejector.
[0009] Preferably, it also includes:
[0010] The guide rod is fixedly connected to the upper mold; the slider is provided with a through hole corresponding to the guide rod, the guide rod is an inclined rod body, the upper end of the guide rod is arranged close to the inner direction of the upper mold, and the lower end is arranged toward the outer side of the lower mold.
[0011] Preferably, the lower mold comprises:
[0012] The first chute is arranged corresponding to the slider, the slider is slidably connected to the first chute, and a limiting plate group is arranged on the upper side of the first chute.
[0013] Preferably, the second ejector assembly further comprises:
[0014] The ejector sleeve is fixedly connected to the slider and has a cavity inside. The second ejector is slidably connected to the ejector sleeve through the cavity.
[0015] Preferably, the lower mold further comprises:
[0016] The sleeve slide groove is arranged on a side of the lower die facing the sliding block, the sleeve slide groove is arranged corresponding to the ejector sleeve, and the ejector sleeve and the sleeve slide groove are slidably connected.
[0017] Preferably, the sleeve sliding groove is a straight groove body, one end of which faces the inside of the lower mold and the other end faces the outside of the lower mold;
[0018] When the mold is closed, the ejector sleeve is located at the inner end of the sleeve slide groove; when the mold is open, the ejector sleeve is located at the outer end of the sleeve slide groove.
[0019] Preferably, the first ejector assembly further comprises:
[0020] The top plate is slidably connected to the lower mold, and its sliding direction is parallel to the mold opening and closing direction. The top plate is fixedly connected to the end of the first ejector away from the upper mold.
[0021] Preferably, the first ejector assembly further comprises:
[0022] The first channel is opened on the lower mold, the first ejector pin is slidably connected to the first channel, the first channel extends into the sleeve slide groove, and the connecting portion between the first channel and the sleeve slide groove is close to the outer end of the sleeve slide groove.
[0023] Preferably, the second ejector assembly further comprises:
[0024] The spring can reset the second ejector pin. When the spring is in a natural state, the second ejector pin does not eject.
[0025] An injection molding device uses the above-mentioned slider gate separation mechanism.
[0026] Compared with the existing technology, it has the following beneficial effects:
[0027] 1. The slider gate disengagement mechanism of this solution can be compatible with the two functions of slider and latent gate ejection, thus providing a basis for the injection molding of more complex products.
[0028] 2. This solution uses the power-driven slider to open and close the upper mold, and there is no need to set up an additional power source.
[0029] 3. This solution combines the slider and the latent gate. The slider moves horizontally during the opening process of the upper mold, and the latent gate and the product are separated while the slider moves horizontally.
[0030] 4. This solution sets a second ejector assembly inside the slider and uses the power of the first ejector assembly to eject the second ejector. This solution can be implemented by modifying the ejector power of the original injection molding equipment, saving the modification cost during the implementation of the solution.
[0031] 5. The main implementation parts of this solution are all within the slider structure, which is convenient for the transformation and implementation of existing injection molding equipment and easy to promote. BRIEF DESCRIPTION OF THE DRAWINGS
[0032] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present application;
[0033] Figure 2 For the embodiment of this application, the upper mold state is hidden Figure 1 ;
[0034] Figure 3 for Figure 2 A partial enlarged view of;
[0035] Figure 4 For the embodiment of this application, the upper mold state is hidden Figure 2 ;
[0036] Figure 5 for Figure 4 A partial enlarged view of;
[0037] Figure 6 This is a top view of the embodiment of the present application showing the upper mold in a hidden state;
[0038] Figure 7 for Figure 6 BB cross-section diagram;
[0039] Figure 8 for Figure 7 A partial enlarged view of .
[0040] In the picture:
[0041] 1. Upper mold; 2. Lower mold; 21. Sleeve slide; 3. Slider; 4. Guide rod; 5. Latent gate; 6. First ejector assembly; 61. First ejector; 62. Ejector plate; 63. First channel; 7. Second ejector assembly; 71. Second ejector; 72. Spring; 73. Ejector sleeve. DETAILED DESCRIPTION
[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0043] See also Figures 1-8 , this application provides the following technical solutions:
[0044] A slider gate disengagement mechanism comprises an upper mold 1 and a lower mold 2. The upper mold 1 is a movable mold that can move toward or away from the lower mold 2 to open and close the mold. The opening and closing direction of the upper mold 1 and lower mold 2 is a first movement direction. A slider 3 is disposed between the upper mold 1 and lower mold 2. The slider 3 is slidably connected to the lower mold 2, and the sliding direction of the slider 3 is perpendicular to the first movement direction. A latent gate 5 is disposed on the slider 3. In this embodiment, the upper mold 1 is illustrated in a vertical direction, while the slider 3 slides horizontally. A first ejector assembly 6 is disposed on the lower mold 2. The first ejector assembly 6 is slidably connected to the lower mold 2, and its sliding direction is vertical. A first ejector pin 61 of the first ejector pin assembly 6 can extend into the slider 3. A second ejector pin assembly 7 is disposed within the slider 3. The second ejector pin assembly 7 includes a second ejector pin 71. When the slider 3 moves in the open mold state, the first ejector pin 61 can move upward, thereby pushing the second ejector pin 71 to eject the latent gate 5 from the bottom up.
[0045] Through the structure of this solution, the traditional ejector is divided into two parts, one of which is the first ejector assembly 6. The first ejector assembly 6 has a similar structure to the conventional ejector structure. Its first ejector 61 is driven by the ejector plate 62 set at the bottom of the lower mold 2. The ejector plate 62 rises and falls in the vertical direction, thereby driving the first ejector 61 to rise and fall synchronously. The other part is the second ejector assembly 7, in which the second ejector 71 is located below the latent gate 5 and can move laterally with the slider 3. When the mold is opened, the slider 3 first moves laterally, and during the movement, the latent gate 5 and the second ejector 71 move. As the slider 3 moves laterally, the latent gate 5 and the product are separated. When the slider 3 finishes moving, the second ejector 71 moves above the first ejector 61. At this time, the ejector plate 62 pushes the first ejector 61 upward, and the first ejector 61 then pushes the second ejector 71 upward to achieve ejection from the inside of the latent gate 5. Unlike conventional ejector pin structures, in the mold closed state, the upper end of the first ejector pin 61 is housed inside the lower mold 2 and below the slider 3, without interfering with the movement of the slider 3. This enables the combined application of the slider structure and the ejector pin structure.
[0046] Based on the above embodiment, an inclined guide rod 4 is fixedly connected to the underside of the upper mold 1. The guide rod 4 is an inclined rod with its upper end positioned toward the interior of the upper mold 1 and its lower end positioned toward the outside of the lower mold 2. The slider 3 has a through hole corresponding to the guide rod 4, through which the guide rod 4 is slidably connected to the slider 3.
[0047] The lower mold 2 is provided with a first slide groove corresponding to the slider 3. The first slide groove is a horizontal straight groove. The slider 3 and the first slide groove are slidably connected. A limiting plate group corresponding to the slider 3 is provided on the upper side of the first slide groove. The multiple limiting plates in the limiting plate group ensure that the slider 3 will not fall out of the first slide groove.
[0048] On the basis of the above embodiment, the second ejector assembly 7 further includes an ejector sleeve 73 in addition to the second ejector 71. The ejector sleeve 73 is fixedly connected to the slider 3 and has a cavity therein for accommodating the second ejector 71. The second ejector 71 is slidably connected to the ejector sleeve 73 through the cavity.
[0049] A sleeve slide groove 21 is provided on the lower mold 2 corresponding to the ejector sleeve 73. The sleeve slide groove 21 is provided on the side of the lower mold 2 facing the slider 3. The sleeve slide groove 21 is a horizontal straight groove with one end facing the inside of the lower mold 2 and the other end facing the outside of the lower mold 2. The ejector sleeve 73 and the sleeve slide groove 21 are slidably connected.
[0050] A wing plate or an annular boss is provided on the outer side of the bottom end of the sleeve 73, and the groove body of the sleeve slide groove 21 presents a "convex" structure. Through this structure, the sleeve 73 and the sleeve slide groove 21 can achieve stable lateral movement.
[0051] In the closed state of the upper mold 1 and the lower mold 2, the ejector sleeve 73 is located at the inner end of the sleeve sliding groove 21; in the open state, the ejector sleeve 73 is located at the outer end of the sleeve sliding groove 21.
[0052] Based on the above implementation plan, see Figure 8 In addition to the first ejector 61, the first ejector assembly 6 also includes a first channel 63. The first channel 63 is opened on the lower mold 2. The first channel 63 is a vertical channel. The first ejector 61 and the first channel 63 are slidably connected. The upper end of the first channel 63 extends into the sleeve groove 21, and the connecting part between the first channel 63 and the sleeve groove 21 is close to the outer end of the sleeve groove 21.
[0053] On the basis of the above embodiment, the second ejector assembly 7 further includes a spring 72 for resetting, and the second ejector 71 can be reset by the spring 72. When the spring 72 is in a natural state, the second ejector 71 is not ejected.
[0054] The spring 72 is arranged inside the ejector sleeve 73, and the spring 72 surrounds the side of the second ejector 71. The bottom end of the second ejector 71 is provided with a circular bottom plate, and the lower end of the spring 72 is against the upper side of the bottom plate. The upper end of the spring 72 is against the upper side of the inside of the ejector sleeve 73. A through hole is provided at the bottom end of the ejector sleeve 73 corresponding to the first ejector 61. In the closed mold state, because the first ejector 61 and the second ejector 72 are not in contact, the lower end of the second ejector 72 is not subjected to force. Under the push of the spring 72, the upper end of the second ejector 72 is in a retracted state relative to the latent gate 5. During the mold opening process, the slider 3 moves horizontally. When the slider 3 has completed the horizontal movement, the second ejector 71 and the first ejector 61 are aligned. At this time, the ejector plate 62 moves upward, pushing the first ejector 61 into the inside of the ejector sleeve 73, and lifting the second ejector 71 from the bottom up, thereby realizing the ejection of the latent gate 5.
[0055] In the description of the present application and its embodiments, it should be understood that the terms "top", "bottom", "height", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present application.
[0056] In this application and its embodiments, unless otherwise expressly specified or limited, terms such as "disposed," "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections, electrical connections, or communication; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.
[0057] In the present application and its embodiments, unless otherwise expressly specified and limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0058] The disclosure above provides many different embodiments or examples for realizing the different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described above. Of course, they are merely examples and are not intended to limit the present application. In addition, the present application may repeat reference numerals and / or reference letters in different examples, and such repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art will appreciate the application of other processes and / or the use of other materials.
[0059] Although the preferred embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present application.
[0060] Obviously, those skilled in the art may make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalents, this application is intended to include these modifications and variations.
Claims
1. A slider gate separation mechanism, comprising an upper mold and a lower mold, wherein the opening and closing direction of the upper mold and the lower mold is a first movement direction, characterized in that: Also includes: A slider is provided between the upper die and the lower die, the slider is slidably connected to the lower die, and the sliding direction of the slider is perpendicular to the first motion direction; a latent gate, arranged on the slider; A first ejector assembly is slidably connected to the lower mold, and its sliding direction is parallel to the first movement direction; The first ejector pin of the first ejector pin assembly can extend into the slider; The second ejector assembly is arranged inside the slider and includes a second ejector. When the slider moves in the mold opening state, the first ejector can push the second ejector.
2. The slider gate separation mechanism according to claim 1, wherein: Also includes: The guide rod is fixedly connected to the upper mold; the slider is provided with a through hole corresponding to the guide rod, the guide rod is an inclined rod body, the upper end of the guide rod is arranged close to the inner direction of the upper mold, and the lower end is arranged toward the outer side of the lower mold.
3. The slider gate separation mechanism according to claim 1, wherein: The lower die comprises: The first chute is arranged corresponding to the slider, the slider is slidably connected to the first chute, and a limiting plate group is arranged on the upper side of the first chute.
4. The slider gate separation mechanism according to claim 1, wherein: The second ejector pin assembly further includes: The ejector sleeve is fixedly connected to the slider and has a cavity inside. The second ejector is slidably connected to the ejector sleeve through the cavity.
5. The slider gate separation mechanism according to claim 4, wherein: The lower die also includes: The sleeve slide groove is arranged on a side of the lower die facing the sliding block, the sleeve slide groove is arranged corresponding to the ejector sleeve, and the ejector sleeve and the sleeve slide groove are slidably connected.
6. The slider gate separation mechanism according to claim 5, wherein: The sleeve sliding groove is a straight groove body, one end of which faces the inside of the lower mold and the other end faces the outside of the lower mold; When the mold is closed, the ejector sleeve is located at the inner end of the sleeve slide groove; when the mold is open, the ejector sleeve is located at the outer end of the sleeve slide groove.
7. The slider gate separation mechanism according to claim 6, wherein: The first ejector pin assembly further includes: The top plate is slidably connected to the lower mold, and its sliding direction is parallel to the mold opening and closing direction. The top plate is fixedly connected to the end of the first ejector away from the upper mold.
8. The slider gate separation mechanism according to claim 7, wherein: The first ejector pin assembly further includes: The first channel is opened on the lower mold, the first ejector pin is slidably connected to the first channel, the first channel extends into the sleeve slide groove, and the connecting portion between the first channel and the sleeve slide groove is close to the outer end of the sleeve slide groove.
9. The slider gate separation mechanism according to claim 7, wherein: The second ejector pin assembly further includes: The spring can reset the second ejector pin. When the spring is in a natural state, the second ejector pin does not eject.
10. An injection molding device, characterized in that: Use the slider gate separation mechanism as described in any one of claims 1-9.