A mould for deep ribbed products
By designing a core-pulling slider and a glue injection channel structure in the mold, the molding defects of the deep rib area were solved, enabling efficient and precise molding of deep rib products and improving product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU CHUANG RUI AUTOMOBILE ELECTRIC APPLIANCE CO LTD
- Filing Date
- 2025-04-17
- Publication Date
- 2026-06-09
AI Technical Summary
Traditional molds are prone to defects such as sticking to the deep ribs, insufficient filling, air holes, and shrinkage in the deep rib areas, which affect product quality.
A mold for deep rib products was designed, including a front mold, a rear mold, a core-pulling slider, and a glue injection channel. The glue injection channel is located inside the core-pulling slider, and the gate is connected to the cavity to ensure that the glue material is evenly filled into the deep rib area. The glue injection channel of the core-pulling slider accurately fills the deep rib area, reducing defects in the deep rib area.
It improves the molding quality of deep rib areas, reduces phenomena such as sticking to the mold, insufficient filling, air holes, and shrinkage in deep rib areas, and ensures product quality.
Smart Images
Figure CN224334914U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of injection molding technology, and specifically relates to a mold for deep rib products. Background Technology
[0002] Injection molding is a manufacturing process in which molten material is injected into a mold cavity, and the product is obtained after the material cools. Generally speaking, a mold includes a front mold and a rear mold, which are aligned and fitted together to form the cavity.
[0003] Chinese patent CN102205557U discloses a core-pulling mold, including an outer mold, an inner mold, and a positioning and locking device. The inner mold is located inside the cavity of the outer mold. An inner locking wedge is provided on the outer surface of the inner mold, and an outer locking wedge, adapted to the inner locking wedge, is provided on the inner surface of the outer mold. A centrifugal running wheel is also provided outside the outer mold. A positioning point is provided in the inner cavity of the outer mold. The positioning and locking device is a positioning and locking screw. A first positioning assembly hole is provided at the tail end of the inner mold, and a second positioning assembly hole corresponding to the position of the first positioning assembly hole is provided on the outer mold. When the inner mold moves to the positioning point, the positioning and locking screw passes through the first positioning assembly hole and the second positioning assembly hole in sequence, locking the inner mold and the outer mold together. When locked, the inner mold and the outer mold have the same shape.
[0004] While this core-pulling mold can mold ordinary parts, it struggles to efficiently and accurately mold products with deep ribs. Traditional mold structures are prone to defects in deep rib areas, such as sticking, incomplete filling, porosity, and shrinkage, affecting product quality. Therefore, a new mold structure is needed to solve these problems. Utility Model Content
[0005] The purpose of this utility model is to provide a mold for deep rib products, which reduces the occurrence of problems such as sticking to the mold, insufficient filling, air holes, and shrinkage in the deep rib areas of the product, thereby improving the quality of the product.
[0006] The technical solution adopted to solve the above-mentioned technical problems is as follows:
[0007] This utility model embodiment provides a mold for deep-ribbed products, including:
[0008] Front mold,
[0009] A cavity is formed between the front mold and the rear mold;
[0010] A core-pulling slider is disposed on the front mold; the core-pulling slider is provided with a glue injection port.
[0011] The mold is provided with a glue injection channel, and a gate is formed on the glue injection channel. The gate is connected to the cavity. The glue injection port is connected to the glue injection channel, and the glue injection channel is at least partially located inside the core-pulling slider. The glue injection channel is arranged along the demolding direction and is used to introduce glue material.
[0012] According to the mold of the deep rib product in this embodiment of the utility model, the core-pulling slider is located in the middle of the front mold.
[0013] According to the mold of the deep rib product according to the embodiment of the present utility model, the glue injection channel includes a channel body and a liquid outlet cavity that are interconnected. The channel body is located inside the core-pulling slider, and the liquid outlet cavity is located between the core-pulling slider and the rear mold.
[0014] According to the mold of the deep rib product in this embodiment of the utility model, the channel body is straight.
[0015] According to the mold of the deep rib product in this embodiment of the utility model, the channel body is located in the middle of the core-pulling slider.
[0016] According to the mold of the deep rib product in this embodiment of the present utility model, the gate is disposed on one side of the liquid outlet cavity, and the gate is located at the bottom of the core pulling slider.
[0017] According to the mold of the deep rib product of the present utility model embodiment, a mating groove is formed on the rear mold, the core pulling slider is located in the mating groove, the bottom surface of the mating groove is provided with a liquid outlet groove, and the liquid outlet groove and the core pulling slider form the liquid outlet cavity.
[0018] According to the mold of the deep rib product according to the embodiment of the present utility model, the rear mold is provided with an insert, and the mating groove is located on the insert.
[0019] According to the mold of the deep rib product of the present utility model embodiment, the mold further includes an ejection mechanism, the ejection mechanism further includes an ejection rod; the insert also has an ejection hole for the ejection rod to pass through.
[0020] According to the mold of the deep rib product according to the embodiment of the present utility model, the mold further includes a rear mold core, the rear mold core is fixed to the rear mold, the rear mold core is provided with a fixing groove, the insert is located in the fixing groove, a first cavity is formed between the outer wall of the insert and the inner wall of the fixing groove; a second cavity is formed between the insert and the front mold, and the first cavity and the second cavity are connected to form the cavity.
[0021] The present invention has at least the following beneficial effects:
[0022] The injection molding machine's nozzle injects the plastic material into the injection channel through the injection port. The plastic material then flows into the mold cavity through the gate. The injection port is connected to the injection channel, and the injection channel is at least partially located within the core-pulling slider. This allows the plastic material to be evenly filled into the deep rib areas through the injection channel of the core-pulling slider, ensuring the molding quality of the deep rib areas. The precise filling of the deep rib areas by the plastic material through the injection channel within the core-pulling slider reduces phenomena such as sticking to the mold in the deep rib areas, insufficient filling, air holes, and shrinkage, thereby improving product quality. Attached Figure Description
[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0024] Figure 1 This is a schematic diagram of the overall structure of the mold for the deep-ribbed product provided in this embodiment of the utility model;
[0025] Figure 2 This is an exploded view of the mold for the deep-ribbed product provided in this embodiment of the utility model;
[0026] Figure 3 This is a top view of the mold for the deep-ribbed product provided in this embodiment of the utility model;
[0027] Figure 4 yes Figure 3 Cross-sectional view at point AA;
[0028] Figure 5 This is a schematic diagram of the core-pulling slider of the mold for the deep-ribbed product provided in this embodiment of the utility model;
[0029] Figure 6 This is a schematic diagram of the insert structure of the mold for the deep rib product provided in this embodiment of the utility model.
[0030] The following labels are shown in the attached diagram:
[0031] 100. Front mold;
[0032] 200. Rear mold; 210. Insert; 211. Mating groove; 212. Liquid outlet groove; 213. Ejector hole; 220. Rear mold core;
[0033] 300. Core-pulling slider; 310. Glue injection port;
[0034] 400, cavity;
[0035] 500, Injection channel; 510, Gate; 520, Channel body; 530, Outlet chamber;
[0036] 600. Ejection mechanism;
[0037] 710. First buckle; 720. Second buckle;
[0038] 800, Products. Detailed Implementation
[0039] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0040] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0041] In the description of this utility model, the use of terms such as "several" means one or more, with "multiple" meaning two or more. Terms like "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of terms like "first," "second," and "third" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, the quantity of indicated technical features, or the sequential relationship between indicated technical features.
[0042] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0043] In mold manufacturing, products with deep rib structures are often difficult to mold efficiently and accurately using traditional mold structures. Traditional mold structures are prone to defects such as sticking to the deep rib areas, incomplete filling, porosity, and shrinkage, affecting product quality. Therefore, a new type of mold structure is needed to solve these problems.
[0044] Reference Figures 1 to 6 The following are several embodiments of the mold for the deep-ribbed product of this utility model.
[0045] like Figures 1 to 6As shown, the mold for the deep rib product of this utility model embodiment includes a front mold 100, a rear mold 200, and a core-pulling slider 300. A cavity 400 is formed between the front mold 100 and the rear mold 200. The core-pulling slider 300 is disposed in the front mold 100 and has an injection port 310. An injection channel 500 is provided inside the mold, and a gate 510 is formed on the injection channel 500. The gate 510 communicates with the cavity 400. The injection port 310 communicates with the injection channel 500, and the injection channel 500 is at least partially located inside the core-pulling slider 300. The injection channel 500 is arranged along the demolding direction and is used to introduce adhesive material.
[0046] The injection molding machine nozzle injects the plastic material into the injection channel 500 through the injection port 310. The plastic material flows into the cavity 400 through the gate 510. The injection port 310 is connected to the injection channel 500, and the injection channel 500 is at least partially located within the core-pulling slider 300. This allows the plastic material to be evenly filled into the deep rib areas through the injection channel 500 of the core-pulling slider 300, ensuring the molding quality of the deep rib areas. The plastic material is precisely filled into the deep rib areas through the injection channel 500 within the core-pulling slider 300, reducing phenomena such as sticking to the mold, insufficient filling, air holes, and shrinkage in the deep rib areas of the product 800, thereby improving the quality of the product 800.
[0047] The injection channel 500 is set along the demolding direction, allowing the adhesive to quickly enter the cavity 400 through the injection channel 500, reducing the length of the injection channel 500. The core-pulling slider 300 can be aligned with the demolding direction, simplifying the mold structure and facilitating core-pulling operations.
[0048] In some embodiments, the core-pulling slider 300 is located in the middle of the front mold 100, which is more conducive to forming a deep rib position in the middle of the product 800, meeting the special needs of the user; setting the core-pulling slider 300 in the middle of the front mold 100 can ensure that the pressure and flow in the molding cavity 400 are uniform during the molding process, which can reduce molding defects such as bubbles, shrinkage or cold material, and help ensure smoother demolding of the molded product 800.
[0049] In some embodiments, such as Figure 3 and Figure 4As shown, the injection channel 500 includes a channel body 520 and an outlet cavity 530 that are interconnected. The channel body 520 is located inside the core-pulling slider 300, and the outlet cavity 530 is located between the core-pulling slider 300 and the rear mold 200. The outlet cavity 530 can store a certain amount of adhesive. During the injection process, the adhesive flows into the outlet cavity 530 through the channel body 520, and then enters the cavity 400 through the outlet cavity 530. The outlet cavity 530 helps to ensure uniform flow of the adhesive into the cavity 400. Uniformity is ensured to avoid local overfilling or uneven flow. The liquid outlet cavity 530 is located between the core-pulling slider 300 and the rear mold 200. Under the premise of ensuring that the glue in the injection channel 500 can flow smoothly to the cavity 400, the structure of the core-pulling slider 300 can be simplified and the processing difficulty of the core-pulling slider 300 can be reduced. Generally, the gate 510 is set on one side of the liquid outlet cavity 530. If the liquid outlet cavity 530 is directly set in the core-pulling slider 300, the processing difficulty of the core-pulling slider 300 will be greatly increased.
[0050] In some embodiments, such as Figure 3 and Figure 4 As shown, the channel body 520 is straight, which allows the adhesive to flow smoothly into the cavity 400 and reduces the flow resistance of the adhesive in the channel body 520.
[0051] In some embodiments, such as Figure 4 As shown, the channel body 520 is located in the middle of the core-pulling slider 300, allowing the adhesive to flow from the middle of the core-pulling slider 300 to the cavity 400. Since the core-pulling slider 300 is located in the middle of the front mold 100, the adhesive can be injected from the middle position, which is beneficial for the adhesive to be injected evenly into the cavity 400 and improve the quality of the product 800.
[0052] In some embodiments, the gate 510 is located at the bottom of the core-pulling slider 300, so that the gate 510 is located at the deep rib position of the product 800, so as to avoid forming gate 510 marks on the outer surface of the final product 800, thereby ensuring the integrity of the appearance of the product 800.
[0053] In some embodiments, such as Figure 6 As shown, a mating groove 211 is formed on the rear mold 200, and the core-pulling slider 300 is partially located in the mating groove 211. The bottom surface of the mating groove 211 is provided with a liquid outlet groove 212, and a liquid outlet cavity 530 is formed between the liquid outlet groove 212 and the core-pulling slider 300. The mating groove 211 facilitates the mating of the core-pulling slider 300 and the rear mold 200, so that a liquid outlet cavity 530 is formed between the liquid outlet groove 212 and the core-pulling slider 300, which is conducive to the flow of the rubber material into the cavity 400 through the liquid outlet cavity 530.
[0054] In some embodiments, such as Figure 2 and Figure 6As shown, the rear mold 200 is provided with an insert 210, and a mating groove 211 is located on the insert 210. It can be understood that providing the insert 210 reduces the machining difficulty of the rear mold 200 and facilitates its maintenance. The mating groove 211 on the insert 210 allows the insert 210 to correspond to the core-pulling slider 300, which is beneficial for venting the deep ribs and reducing air bubbles or insufficient glue during injection molding. Furthermore, the insert 210 can have a recess to facilitate adjustment of the shape of the cavity 400.
[0055] In some embodiments, such as Figure 2 and Figure 6 As shown, the mold also includes an ejection mechanism 600, which includes an ejection rod; the insert 210 also has an ejection hole 213 for the ejection rod to pass through, which facilitates demolding.
[0056] In some embodiments, such as Figure 2 As shown, the mold also includes a rear mold core 220, which is fixed to the rear mold 200. A fixing groove is provided on the rear mold core 220, and the insert 210 is located in the fixing groove. A first cavity is formed between the outer wall of the insert 210 and the inner wall of the fixing groove. A second cavity is formed between the insert 210 and the front mold 100. The first cavity and the second cavity are connected to form a cavity 400, thereby realizing a relatively complex cavity 400 structure, which helps to form the product 800.
[0057] In some embodiments, such as Figure 1 As shown, the mold also includes a first plate buckle 710 and a second plate buckle 720 that interlock with each other. The first plate buckle 710 is disposed on the front mold 100 and the second plate buckle 720 is disposed on the rear mold 200. By interlocking the first plate buckle 710 and the second plate buckle 720, the front mold 100 and the rear mold 200 can be fixed, which facilitates the subsequent molding of the product 800.
[0058] In some embodiments, the mold further includes guide sleeves and guide pillars, with the guide pillars fixed to the rear mold 200; a sliding hole is provided in the front mold 100, the guide sleeve is disposed in the sliding hole, and the guide sleeve is sleeved on the outside of the guide pillar; by sliding the guide sleeve on the guide pillar, the front mold 100 moves relative to the rear mold 200, thereby realizing mold opening and demolding. Four guide pillars and four guide sleeves are provided, and the mold also includes two panels, one corresponding to the front mold 100 and the other corresponding to the rear mold 200.
[0059] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.
Claims
1. A mold for deep-ribbed products, characterized in that, include: Front mold, The rear mold forms a cavity between the front mold and the rear mold; A core-pulling slider is provided on the front mold; The core-pulling slider is equipped with a glue injection port; The mold is provided with a glue injection channel, and a gate is formed on the glue injection channel. The gate is connected to the cavity. The glue injection port is connected to the glue injection channel, and the glue injection channel is at least partially located inside the core-pulling slider. The glue injection channel is arranged along the demolding direction and is used to introduce glue material.
2. The mold for deep-ribbed products according to claim 1, characterized in that, The core-pulling slider is located in the middle of the front mold.
3. The mold for deep-ribbed products according to claim 1, characterized in that, The injection channel includes a channel body and an outlet cavity that are interconnected. The channel body is located inside the core-pulling slider, and the outlet cavity is located between the core-pulling slider and the rear mold.
4. The mold for deep-ribbed products according to claim 3, characterized in that, The channel body is straight.
5. The mold for deep-ribbed products according to claim 3, characterized in that, The channel body is located in the middle of the core-pulling slider.
6. The mold for deep-ribbed products according to claim 3, characterized in that, The gate is located on one side of the liquid outlet chamber and at the bottom of the core-pulling slider.
7. The mold for deep-ribbed products according to claim 3, characterized in that, A mating groove is formed on the rear mold, the core-pulling slider is located in the mating groove, the bottom surface of the mating groove is provided with a liquid outlet groove, and the liquid outlet cavity is formed between the liquid outlet groove and the core-pulling slider.
8. The mold for deep-ribbed products according to claim 7, characterized in that, The rear mold is provided with an insert, and the mating groove is located on the insert.
9. The mold for deep-ribbed products according to claim 8, characterized in that, The mold also includes an ejection mechanism, which further includes an ejection rod; the insert also has an ejection hole through which the ejection rod passes.
10. The mold for deep-ribbed products according to claim 8, characterized in that, The mold also includes a rear mold core, which is fixed to the rear mold. A fixing groove is provided on the rear mold core. The insert is located in the fixing groove. A first cavity is formed between the outer wall of the insert and the inner wall of the fixing groove. A second cavity is formed between the insert and the front mold. The first cavity and the second cavity are connected to form the mold cavity.