Novel turnover basket injection mold

Abstract

The utility model discloses a novel turnover basket injection mold. The novel turnover basket injection mold comprises a fixed mold plate, the movable mold plate is arranged opposite to the fixed mold plate, and the movable mold plate can do lifting motion relative to the fixed mold plate; the mold cavity is formed in one surface, opposite to the movable mold plate, of the fixed mold plate; the mold core is arranged on one surface, opposite to the fixed mold plate, of the movable mold plate; the oil cylinder ejection outer side demolding mechanism is arranged between the fixed mold plate and the movable mold plate; and the fixed mold pulling plate inner side demolding mechanism is arranged between the fixed mold plate and the movable mold plate. According to the utility model, the die structure is simplified, the overall size of the die is greatly reduced, and the die manufacturing efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to a novel injection mold for turnover baskets. Background Technology

[0002] Turnover baskets are commonly used plastic products, generally large in size, with a small demolding angle, and evenly distributed reinforcing ribs and regularly arranged holes on all four sides. They are widely used injection molded products in production. The turnover basket is a rectangular plastic part, usually 600mm long, 400mm wide, 150mm high, and 5mm thick. The bottom has four L-shaped bosses, each 5mm high, for support and stacking positioning. Evenly distributed reinforcing ribs and diamond-shaped holes are arranged around the perimeter.

[0003] The reinforcing ribs and diamond-shaped holes evenly distributed around the perimeter of the turnover basket create a four-sided undercut, posing challenges to the external demolding design. Demolding of the four-sided undercut generally requires a side-pulling mechanism. Conventional side-pulling mechanisms include angled top side-pulling and slider side-pulling. Considering the dimensions of the turnover basket, the overall size of the mold, and the ease and rationality of manufacturing, a side-slider core-pulling mechanism is generally adopted for the external demolding of the turnover basket. A conventional side-slider core-pulling mechanism typically involves machining a slide rail on the mold plate, using the injection molding machine to open the mold, and driving the slider outward via an angled guide post to achieve the core-pulling purpose. However, this conventional slider design requires increasing the dimensions of the fixed and moving mold plates, and also necessitates machining slide rails, wedging parts, and wedging blocks on the fixed and moving mold plates, which is time-consuming and labor-intensive. Furthermore, it results in a larger overall mold size, further impacting the mold's manufacturing efficiency and economic benefits.

[0004] Furthermore, considering the characteristics of the inner part of the turnover basket product, its demolding design typically employs a direct ejection structure using ejector pins. However, since the inner wall of the turnover basket product is vertical, lacks draft angles, and has an overall height of 150mm, the ejection distance must be at least 150mm. Using direct ejection with ejector pins would result in high ejection resistance, leading to defects such as whitening and breakage, severely impacting product quality. Secondly, using an ejector pin design requires the mold to design ejector pin base plates, face plates, and mold feet for support and ejection space, significantly increasing mold material preparation and overall mold dimensions, thus greatly increasing manufacturing costs. Simultaneously, the procurement and processing of these structural components further extends the mold manufacturing cycle, significantly reducing manufacturing efficiency. Utility Model Content

[0005] In order to overcome the problems of large overall size, long manufacturing cycle, small demolding angle, large demolding resistance and difficult ejection in the existing turnover basket mold, this utility model provides a new type of turnover basket injection mold.

[0006] The technical solution of this utility model is as follows:

[0007] A novel injection mold for turnover baskets includes:

[0008] Define template;

[0009] A movable template is disposed opposite to the fixed template, and the movable template can move up and down relative to the fixed template.

[0010] A cavity is provided on the side of the fixed template opposite to the moving template;

[0011] The core is disposed on the side of the moving template opposite to the fixed template;

[0012] The hydraulic cylinder ejection outer demolding mechanism is located between the fixed mold plate and the moving mold plate. The hydraulic cylinder ejection outer demolding mechanism includes four circumferentially arranged side mold sliders and a hydraulic cylinder ejection mechanism for driving the four side mold sliders to move synchronously outward or inward.

[0013] An inner demolding mechanism for the fixed mold pull plate is disposed between the fixed mold plate and the moving mold plate. The inner demolding mechanism for the fixed mold pull plate includes a fixed mold pull plate and a fixed mold pull rod. The fixed mold pull plate is slidably sleeved on the outside of the core. One end of the fixed mold pull rod is connected to the fixed mold plate, and the other end of the fixed mold pull rod is connected to the fixed mold pull plate.

[0014] When the mold is closed, the fixed mold pull plate is sleeved on the bottom outside of the core, and the cavity, the core, the fixed mold pull plate and the four side mold sliders surround to form an injection cavity.

[0015] As a preferred embodiment of this utility model, a plurality of inclined guide posts are provided between each side mold slider and the fixed template, and a plurality of inclined guide holes that cooperate with the inclined guide posts are provided on each side mold slider. One end of the inclined guide post is connected to the fixed template, and the other end of the inclined guide post is slidably sleeved in the corresponding inclined guide hole.

[0016] As a preferred embodiment of this utility model, the hydraulic cylinder ejection mechanism includes two hydraulic cylinders arranged opposite to each other. The two hydraulic cylinders are respectively inclinedly installed on the outside of the two oppositely arranged side mold sliders, and the piston rods of the two hydraulic cylinders are connected to the fixed template.

[0017] The two side mold sliders equipped with the oil cylinders are each equipped with a synchronous connecting rod at a 45° center position on both sides. The other two side mold sliders are each equipped with a connecting rod slide at a 45° center position on both sides to cooperate with the synchronous connecting rod.

[0018] As a preferred embodiment of this utility model, the fixed template is provided with a piston rod connecting block at the connection between it and the piston rod of the oil cylinder. The piston rod connecting block is provided with a piston rod slide, and the piston rod end of the oil cylinder is provided with a piston rod slider that cooperates with the piston rod slide.

[0019] As a preferred embodiment of this utility model, a first wedge-tightening inclined surface is provided at the upper outer side of each of the four side mold sliders, and a second wedge-tightening inclined surface is provided at the lower outer side of each of the four side mold sliders.

[0020] The fixed template has a first wedge groove on one side opposite the moving template, which cooperates with the upper part of the four side mold sliders when the mold is closed. The four inner walls of the first wedge groove are respectively provided with a third wedge slope that cooperates with the first wedge slope of the four side mold sliders.

[0021] The moving template has a second wedge groove on one side opposite the fixed template, which cooperates with the lower part of the four side mold sliders when the mold is closed. The four inner walls of the second wedge groove are respectively provided with a fourth wedge inclined surface that cooperates with the second wedge inclined surface of the four side mold sliders.

[0022] As a preferred embodiment of this utility model, wear-resistant blocks are provided on both the first wedge-tightening inclined surface and the second wedge-tightening inclined surface.

[0023] As a preferred embodiment of this utility model, the four side mold sliders are provided with a fifth wedge-tightening inclined surface at both the left and right ends of their inner sides.

[0024] As a preferred embodiment of this utility model, each of the four side mold sliders includes a slider seat and a slider head that is detachably disposed inside the slider seat.

[0025] As a preferred embodiment of this utility model, the demolding mechanism inside the fixed mold pull plate further includes four linear guide components respectively disposed at the four corners of the fixed mold pull plate. Each of the four linear guide components includes a linear guide rod and a guide sleeve. The four guide sleeves are respectively installed at the four corners of the fixed mold pull plate. One end of each of the four linear guide rods is connected to the four corners of the moving mold plate, and the other end of each of the four linear guide rods is slidably sleeved in the four guide sleeves.

[0026] As a preferred embodiment of this utility model, the fixed mold tie rod includes a first tie rod, a second tie rod, and a third tie rod disposed between the first tie rod and the second tie rod. The end of the first tie rod away from the third tie rod is connected to the fixed mold plate, and the end of the second tie rod away from the first tie rod is connected to the fixed mold pull plate.

[0027] As a preferred embodiment of this utility model, the first pull rod has a first groove inside its length direction, the second pull rod has a second groove inside its length direction, one end of the second pull rod is inserted into the first groove and is provided with a nylon plug that cooperates with the first groove, and the other end of the second pull rod is inserted into the second groove and is provided with a sliding disc that cooperates with the second groove.

[0028] As a preferred embodiment of this utility model, a cooling system is provided in the fixed template, the moving template, the cavity, the core, and the four side mold sliders.

[0029] As a preferred embodiment of this utility model, the fixed template and the cavity are uniformly provided with multiple straight parallel first cooling water channels, which are connected by water pipes to form an S-shaped loop cooling system.

[0030] As a preferred embodiment of this utility model, a plurality of cooling water wells are evenly arranged circumferentially on the inner edge of the core, and a partition is provided in the cooling water well. A water channel is opened at the bottom of the core and connected to each of the cooling water wells. A cooling water inlet pipe is provided at one end of the interior of the moving template and connected to one end of the water channel. A cooling water outlet pipe is provided at the other end of the interior of the moving template and connected to the other end of the water channel.

[0031] As a preferred embodiment of this utility model, each of the four side mold sliders is provided with a second cooling water channel connected in series.

[0032] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0033] 1. The hydraulic cylinder ejection outer demolding mechanism of this utility model utilizes four circumferentially arranged side mold sliders and a hydraulic cylinder ejection mechanism that can synchronously drive these four side mold sliders to move outward or inward, realizing the demolding of the outer side of the product with four sides turned upside down when the mold is opened, effectively solving the problem of demolding the outer side of the turnover basket product; in addition, the hydraulic cylinder ejection outer demolding mechanism significantly reduces the mold template size, further reduces material costs, and greatly improves the efficiency of processing and manufacturing.

[0034] 2. The demolding mechanism on the inner side of the fixed mold pull plate of this utility model adopts a fixed mold pull rod and a fixed mold pull plate, and utilizes a secondary mold opening structure design to pull out the product during the mold opening stroke. This eliminates the need for conventional mold ejection mechanisms, ensuring that quality problems such as whitening, breakage, and deformation during demolding of the turnover basket product from the inner side will not occur. In addition, the innovative structural design of the fixed mold pull rod and the fixed mold pull plate eliminates the need for additional components such as ejector pin panels, base plates, and mold feet, thereby simplifying the mold structure, significantly reducing the overall size of the mold, and also significantly improving manufacturing efficiency and demonstrating excellent economic performance. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of the structure of the novel turnover basket injection mold in one embodiment of the present invention;

[0037] Figure 2 This is a cross-sectional view of the injection mold for the novel turnover basket in one embodiment of the present invention;

[0038] Figure 3 This is a schematic diagram showing the connection of the template, cavity, and hydraulic cylinder ejection mechanism on the outer side of the mold in one embodiment of the present invention.

[0039] Figure 4 This is a schematic diagram showing the connection between the template and the cavity in one embodiment of the present invention;

[0040] Figure 5 This is a schematic diagram of the structure of the hydraulic cylinder ejecting the outer demolding mechanism in one embodiment of the present invention;

[0041] Figure 6 This is a schematic diagram showing the connection between the moving template and the core in one embodiment of the present invention;

[0042] Figure 7 This is a schematic diagram of the demolding mechanism inside the fixed mold pull plate in one embodiment of the present invention;

[0043] Figure 8 This is a cross-sectional view of the fixed mold tie rod in one embodiment of the present invention;

[0044] Figure 9 This is a schematic diagram of the core structure in one embodiment of the present invention.

[0045] In the diagram,

[0046] 1. Fixed mold plate; 101. Gate; 102. First wedge groove; 1021. Third wedge slope; 103. First cooling water channel; 2. Moving mold plate; 201. Second wedge groove; 2011. Fourth wedge slope; 202. Cooling water inlet pipe; 3. Cavity; 4. Core; 401. Cooling water well; 402. Water channel; 5. Hydraulic cylinder ejection outer demolding mechanism; 501. Side mold slider; 5011. Angled guide hole; 5012. Connecting rod slide; 5013. First wedge slope; 5014. Second wedge slope; 5015. Wear-resistant block; 5016. Fifth wedge slope; 5017. Slider seat; 5018. Slider head; 5019. 502. Second cooling water channel; 502. Cylinder ejection mechanism; 5021. Cylinder; 5022. Synchronous connecting rod; 5023. Piston rod connecting block; 5024. Piston rod slide; 5025. Piston rod slider; 503. Inclined guide post; 6. Demolding mechanism inside the fixed mold pull plate; 601. Fixed mold pull plate; 602. Fixed mold pull rod; 6021. First pull rod; 60211. First slide groove; 6022. Second pull rod; 60221. Second slide groove; 6023. Third pull rod; 60231. Nylon rubber plug; 60232. Sliding disc; 603. Linear guide assembly; 6031. Linear guide rod; 6032. Guide sleeve; 7. Turnover basket product. Detailed Implementation

[0047] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be noted that similar reference numerals and letters in the following drawings indicate similar items; therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. It is also declared that the embodiments described below are only for explaining this utility model and are not intended to limit this utility model.

[0048] It should be noted that the terms "installation," "setting," "connection," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components, unless otherwise explicitly defined. Indications of orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used in the application's product, or the orientation or positional relationship commonly understood by those skilled in the art, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "first," "second," "third," "fourth," and "fifth" are used only for descriptive purposes and should not be construed as indicating or implying relative importance or implying a number of technical features. "A plurality" means two or more, unless otherwise explicitly defined. "Several" means one or more, unless otherwise explicitly specified.

[0049] Please see Figures 1 to 9 This embodiment provides a novel injection mold for turnover baskets, including: a fixed mold plate 1, a movable mold plate 2, a cavity 3, a core 4, an outer demolding mechanism 5 ejected by a hydraulic cylinder, and an inner demolding mechanism 6 on the fixed mold pull plate. The fixed mold plate 1 is provided with a gate 101; the movable mold plate 2 is arranged opposite to the fixed mold plate 1, and the movable mold plate 2 can move up and down relative to the fixed mold plate 1 in conjunction with the injection molding machine; the cavity 3 is detachably arranged on the side of the fixed mold plate 1 opposite to the movable mold plate 2, which facilitates the processing of mold forming parts and the subsequent assembly and maintenance of the mold, and the injection inlet of the cavity 3 is connected to the gate 101; the core 4 is detachably arranged on the side of the movable mold plate 2 opposite to the fixed mold plate 1, which facilitates the processing of mold forming parts and the subsequent assembly and maintenance of the mold; the outer demolding mechanism 5 ejected by a hydraulic cylinder and the inner demolding mechanism 6 on the fixed mold pull plate are both arranged between the fixed mold plate 1 and the movable mold plate 2.

[0050] The hydraulic cylinder ejection outer demolding mechanism 5 includes four circumferentially arranged side mold sliders 501 and a hydraulic cylinder ejection mechanism 502 for driving the four side mold sliders 501 to move synchronously outward or inward. The fixed mold pull plate inner demolding mechanism 6 includes a fixed mold pull plate 601 and a fixed mold pull rod 602. The fixed mold pull plate 601 is slidably sleeved on the outside of the core 4 and located between the four side mold sliders 501 and the moving mold plate 2. One end of the fixed mold pull rod 602 is connected to the fixed mold plate 1, and the other end of the fixed mold pull rod 602 is connected to the fixed mold pull plate 601.

[0051] During mold closing, the moving platen 2 rises along the direction of the fixed platen 1 under the drive of the injection molding machine. As the moving platen 2 rises, the hydraulic cylinder ejection mechanism 502 drives the four side mold sliders 501 to move inward synchronously. At the same time, the moving platen 2 also pushes the fixed mold pull plate 601 upward, which in turn causes the fixed mold pull rod 602 to retract as the fixed mold pull plate 601 rises. After the mold closing action is completed, the fixed mold pull plate 601 moves to the bottom outer side of the core 4, and the cavity 3, core 4, fixed mold pull plate 601, and four side mold sliders 501 together enclose the injection cavity. At this time, the melt is injected into the injection cavity through the gate 101 and the cavity 3. After the melt cools, the turnover basket product 7 can be formed.

[0052] During mold opening, the moving platen 2 descends away from the fixed platen 1 under the drive of the injection molding machine. As the moving platen 2 descends, the hydraulic ejection mechanism 502 drives the four side mold sliders 501 to move outward synchronously, and the outer side of the turnover basket product 7 begins to demold. When the four side mold sliders 501 move outward to the predetermined safe distance, the first demolding is completed. As the moving platen 2 continues to descend, the fixed mold pull rod 602 is stretched to the set distance, which in turn drives the fixed mold pull plate 601 to begin pulling out the turnover basket product 7 until the turnover basket product 7 is completely removed from the core 4. At this point, the second demolding is completed.

[0053] The hydraulic cylinder ejection outer demolding mechanism 5 of this utility model utilizes four circumferentially arranged side mold sliders 501 and a hydraulic cylinder ejection mechanism 502 that can synchronously drive these four side mold sliders 501 to move outward or inward, realizing the demolding of the outer side of the product with four sides turned upside down when the mold is opened, effectively solving the problem of demolding the outer side of the turnover basket product 7; in addition, the hydraulic cylinder ejection outer demolding mechanism 5 significantly reduces the mold template size, further reduces material costs, and greatly improves the efficiency of processing and manufacturing.

[0054] The demolding mechanism 6 on the inner side of the fixed mold pull plate of this utility model adopts a fixed mold pull rod 602 and a fixed mold pull plate 601, and utilizes a secondary mold opening structure design to pull out the product during the mold opening stroke. This eliminates the need for conventional mold ejection mechanisms, ensuring that quality problems such as whitening, breakage, and deformation during demolding of the turnover basket product 7 from the inner side will not occur. In addition, the innovative structural design of the fixed mold pull rod 602 and the fixed mold pull plate 601 eliminates the need for additional components such as ejector pin panels, base plates, and mold feet, thereby simplifying the mold structure, significantly reducing the overall size of the mold, and also significantly improving manufacturing efficiency and demonstrating excellent economic performance.

[0055] Please see Figure 2In one embodiment, given that the turnover basket product 7 is a single-cavity plastic part with a large and deep molding process, the gate 101 adopts a large-gate direct gating design. This design allows the molten material to be directly injected into the bottom of the product through the cavity 3. The molten material flows directly from the nozzle into the cavity 3 through the gate 101, which is the shortest path with low flow resistance, thus ensuring a fast feeding speed and good molding effect. At the same time, due to the low flow rate and resistance, the loss of pressure and heat is also reduced accordingly, and the pressure holding and shrinkage compensation effect is significantly enhanced. In addition, this gate 101 design also simplifies the mold structure, makes it easier to manufacture, and thus reduces costs.

[0056] Please see Figure 3 , Figure 5 In one embodiment, a plurality of inclined guide posts 503 are provided between each side mold slider 501 and the fixed template 1. Each side mold slider 501 has a plurality of inclined guide holes 5011 that cooperate with the inclined guide posts 503. One end of the inclined guide post 503 is connected to the fixed template 1, and the other end of the inclined guide post 503 is slidably sleeved in the corresponding inclined guide hole 5011. The hydraulic cylinder ejection mechanism 502 includes two hydraulic cylinders 5021 arranged opposite to each other. The two hydraulic cylinders 5021 are respectively inclinedly installed on the outside of two opposite side mold sliders 501. The piston rods of the two hydraulic cylinders 5021 are connected to the fixed template 1. After the piston rods of the two hydraulic cylinders 5021 extend, the two hydraulic cylinders 5021 move outward, driving the two side mold sliders 501 with the hydraulic cylinders 5021 installed to move outward under the guidance angle of the inclined guide posts 503. Meanwhile, to ensure that the other two side mold sliders 501 without hydraulic cylinders 5021 can move outward synchronously, synchronous connecting rods 5022 are installed at the 45° center positions on both sides of the two side mold sliders 501 with hydraulic cylinders 5021. Connecting rod slides 5012, cooperating with the synchronous connecting rods 5022, are opened at the 45° center positions on both sides of the other two side mold sliders 501. Under the synchronous movement of the synchronous connecting rods 5022 on both sides of the two side mold sliders 501 with hydraulic cylinders 5021, the other two side mold sliders 501 can be driven to move outward synchronously, thereby achieving demolding with the outer four sides of the product inverted, solving the problem of demolding the outer side of the turnover basket product 7.

[0057] The design of the inclined guide post 503 and the inclined guide hole 5011 provides precise guidance for the movement of the side mold slider 501, ensuring that the side mold slider 501 can move smoothly and accurately along the predetermined trajectory during demolding, avoiding problems such as mold damage or poor product demolding caused by movement deviation. The hydraulic cylinder ejection mechanism 502 directly drives the two side mold sliders 501 through two oppositely arranged hydraulic cylinders 5021, simplifying the structure of the demolding mechanism and improving the synchronization and efficiency of the demolding operation. At the same time, the setting of the synchronous connecting rod 5022 further ensures that all side mold sliders 501 can move outward synchronously, thereby realizing rapid and complete demolding of the four-sided undercut of the product, significantly improving production efficiency and product quality.

[0058] Of course, in another embodiment, the hydraulic cylinder ejection mechanism 502 can also be designed to include four hydraulic cylinders 5021, which are respectively inclinedly installed on the outside of the four side mold sliders 501, so that each side mold slider 501 can be directly driven by an independent hydraulic cylinder 5021, thereby realizing synchronous demolding action.

[0059] Please see Figure 5 In one embodiment, the fixed template 1 is provided with a piston rod connecting block 5023 at the connection point with the piston rod of the hydraulic cylinder 5021. The piston rod connecting block 5023 has a piston rod slide rail 5024, and the end of the piston rod of the hydraulic cylinder 5021 is provided with a piston rod slider 5025 that cooperates with the piston rod slide rail 5024. The design of the piston rod slide rail 5024 and the piston rod slider 5025 ensures that the piston rod of the hydraulic cylinder 5021 has sufficient room for movement during extension and retraction, preventing jamming and damage to the hydraulic cylinder 5021.

[0060] Please see Figures 4 to 6In one embodiment, to address the issue of defects such as flash and flyaway in the product caused by the side mold sliders 501 moving outward under injection pressure, a first wedge-clamping slope 5013 is provided on the upper outer side of each of the four side mold sliders 501, and a second wedge-clamping slope 5014 is provided on the lower outer side of each of the four side mold sliders 501. A first wedge-clamping groove 102 is provided on the side of the fixed mold plate 1 opposite to the moving mold plate 2, which engages with the upper part of the four side mold sliders 501 during mold closing. The four inner walls of the first wedge-clamping groove 102 are respectively provided with a third wedge-clamping slope 1021 that engages with the first wedge-clamping slope 5013 of the four side mold sliders 501. A second wedge-clamping groove 201 is provided on the side of the moving mold plate 2 opposite to the fixed mold plate 1, which engages with the lower part of the four side mold sliders 501 during mold closing. The four inner walls of the second wedge-clamping groove 201 are respectively provided with a fourth wedge-clamping slope 2011 that engages with the second wedge-clamping slope 5014 of the four side mold sliders 501. When the mold is closed, the third wedge-tightening inclined surface 1021 of the fixed mold plate 1 and the fourth wedge-tightening inclined surface 2011 of the moving mold plate 2 wedge the first wedge-tightening inclined surface 5013 and the second wedge-tightening inclined surface 5014 of the four side mold sliders 501 to prevent the side mold sliders 501 from moving backward during the injection molding process, thereby ensuring the quality of the product.

[0061] In addition, wear-resistant blocks 5015 are provided on both the first wedge-tightening inclined surface 5013 and the second wedge-tightening inclined surface 5014 to reduce friction damage to the fixed template 1, moving template 2 and side mold sliders 501 and moving template 2 caused by wedge tightening, thereby improving the service life of mold components.

[0062] Please see Figure 5 In one embodiment, a fifth wedge-tightening inclined surface 5016 is provided at both the left and right ends of the inner side of each of the four side mold sliders 501. The fifth wedge-tightening inclined surface 5016 is designed so that during the mold closing process, when the side mold sliders 501 are subjected to mold closing pressure, the interaction between the inclined surfaces can achieve a tight fit and wedge tightening between the side mold sliders 501, reducing the possibility of mold gaps and material leakage.

[0063] Please see Figure 5 In one embodiment, in order to further improve the processing efficiency of the side mold slider 501 and reduce the material cost of the side mold slider 501, all four side mold sliders 501 adopt a modular design. The side mold slider 501 includes a slider seat 5017 and a slider head 5018 that is detachably disposed inside the slider seat 5017, so that the side mold slider 501 can be adapted to different machine tools.

[0064] Please see Figure 7In one embodiment, the demolding mechanism 6 inside the fixed mold pull plate also includes four linear guide components 603 respectively disposed at the four corners of the fixed mold pull plate 601. Specifically, each of the four linear guide components 603 includes a linear guide rod 6031 and a guide sleeve 6032. The four guide sleeves 6032 are respectively installed at the four corners of the fixed mold pull plate 601. One end of each of the four linear guide rods 6031 is connected to the four corners of the moving mold plate 2, and the other end of each linear guide rod 6031 is slidably fitted within the four guide sleeves 6032, forming a stable sliding fit relationship. By introducing four linear guide components 603, the fixed mold pull plate 601 can move stably and accurately during the demolding process, improving the demolding efficiency of the mold, while also reducing maintenance costs and production interruption time caused by mold damage.

[0065] Please see Figure 8 In one embodiment, the fixed mold tie rod 602 includes a first tie rod 6021, a second tie rod 6022, and a third tie rod 6023 disposed between the first tie rod 6021 and the second tie rod 6022. The end of the first tie rod 6021 away from the third tie rod 6023 is connected to the fixed mold plate 1, and the end of the second tie rod 6022 away from the first tie rod 6021 is connected to the fixed mold pull plate 601. The first pull rod 6021 has a first groove 60211 extending along its length to accommodate and guide a portion of the second pull rod 6022. The second pull rod 6022 has a second groove 60221 extending along its length to accommodate and guide a portion of the second pull rod 6022. One end of the second pull rod 6022 is inserted into the first groove 60211 and is fitted with a nylon plug 60231 that mates with the first groove 60211. The nylon plug 60231 not only provides good sliding performance but also has a certain degree of elasticity and wear resistance, which helps to reduce friction and wear. The other end of the second pull rod 6022 is inserted into the second groove 60221 and is fitted with a sliding disc 60232 that mates with the second groove 60221. The sliding disc 60232 allows the second pull rod 6022 to slide smoothly and steadily within the second groove 60221 while maintaining good positioning accuracy. The aforementioned fixed mold tie rod 602 adopts a multi-segment tie rod structure and cleverly combines a slide groove and mating parts to achieve more flexible and stable mold opening and closing operations.

[0066] In one embodiment, in order to effectively control warping defects in the product, reduce the cooling time of the product, and improve the production efficiency of the product, the present invention provides a cooling system in the fixed template 1, the moving template 2, the cavity 3, the core 4, and the four side mold sliders 501.

[0067] Please see Figure 4Specifically, multiple parallel first cooling water channels 103 are evenly arranged inside the fixed mold plate 1 and the cavity 3. These channels are interconnected by water pipes, forming an S-shaped loop cooling system. Cooling water flows in from one side of the fixed mold plate 1, passes through the cavity 3, and finally flows out from the other side of the fixed mold plate 1. This parallel, straight-line cooling water channel design not only ensures the cooling effect but also simplifies and facilitates the processing of the water channels.

[0068] Please see Figure 6 , Figure 9 Specifically, since the core 4 on the moving template 2 is a high core, this invention adopts a cooling system design with cooling wells and baffles for the high core. Multiple cooling water wells 401 are evenly arranged circumferentially along the inner edge of the core 4, and baffles are installed within the cooling water wells 401. Simultaneously, a water passage 402 connected to each cooling water well 401 is opened at the bottom of the core 4. Furthermore, a cooling water inlet pipe 202 connected to one end of the water passage 402 is provided at one end of the moving template 2, and a cooling water outlet pipe connected to the other end of the water passage 402 is provided at the other end of the moving template 2, forming a loop.

[0069] Please see Figure 5 Specifically, each of the four side mold sliders 501 is equipped with a series of second cooling water channels 5019 to improve the production efficiency of the products and ensure the quality of the products.

[0070] In one embodiment, the fixed template 1, the moving template 2, and the side mold slider 501 are all manufactured and processed by precision CNC machine tools, which further ensures the manufacturing accuracy of the mold and significantly improves the manufacturing efficiency, highlighting its economic performance.

[0071] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

[0072] The present utility model patent has been described above with reference to the accompanying drawings. Obviously, the implementation of the present utility model patent is not limited to the above-described manner. Any improvements made by adopting the inventive concept and technical solution of the present utility model patent, or the direct application of the inventive concept and technical solution of the present utility model patent to other occasions without modification, are all within the protection scope of the present utility model.

Claims

1. A novel injection mold for turnover baskets, characterized in that, include: Define template; A movable template is disposed opposite to the fixed template, and the movable template can move up and down relative to the fixed template. A cavity is provided on the side of the fixed template opposite to the moving template; The core is disposed on the side of the moving template opposite to the fixed template; The hydraulic cylinder ejection outer demolding mechanism is located between the fixed mold plate and the moving mold plate. The hydraulic cylinder ejection outer demolding mechanism includes four circumferentially arranged side mold sliders and a hydraulic cylinder ejection mechanism for driving the four side mold sliders to move synchronously outward or inward. An inner demolding mechanism for the fixed mold pull plate is disposed between the fixed mold plate and the moving mold plate. The inner demolding mechanism for the fixed mold pull plate includes a fixed mold pull plate and a fixed mold pull rod. The fixed mold pull plate is slidably sleeved on the outside of the core. One end of the fixed mold pull rod is connected to the fixed mold plate, and the other end of the fixed mold pull rod is connected to the fixed mold pull plate. When the mold is closed, the cavity, the core, the fixed mold pull plate, and the four side mold sliders surround and form an injection cavity.

2. The novel turnover basket injection mold according to claim 1, characterized in that, Each of the side mold sliders is provided with several inclined guide posts between it and the fixed template. Each of the side mold sliders is provided with several inclined guide holes that cooperate with the inclined guide posts. One end of the inclined guide post is connected to the fixed template, and the other end of the inclined guide post is slidably sleeved in the corresponding inclined guide hole.

3. The novel turnover basket injection mold according to claim 2, characterized in that, The hydraulic cylinder ejection mechanism includes two hydraulic cylinders arranged opposite each other. The two hydraulic cylinders are respectively installed obliquely on the outside of the two oppositely arranged side mold sliders, and the piston rods of the two hydraulic cylinders are connected to the fixed template. The two side mold sliders equipped with the oil cylinders are each equipped with a synchronous connecting rod at a 45° center position on both sides. The other two side mold sliders are each equipped with a connecting rod slide at a 45° center position on both sides to cooperate with the synchronous connecting rod.

4. The novel turnover basket injection mold according to claim 1, characterized in that, The upper outer side of each of the four side mold sliders is provided with a first wedge-tightening slope, and the lower outer side of each of the four side mold sliders is provided with a second wedge-tightening slope. The fixed template has a first wedge groove on one side opposite the moving template, which cooperates with the upper part of the four side mold sliders when the mold is closed. The four inner walls of the first wedge groove are respectively provided with a third wedge slope that cooperates with the first wedge slope of the four side mold sliders. The moving template has a second wedge groove on one side opposite the fixed template, which cooperates with the lower part of the four side mold sliders when the mold is closed. The four inner walls of the second wedge groove are respectively provided with a fourth wedge inclined surface that cooperates with the second wedge inclined surface of the four side mold sliders.

5. The novel turnover basket injection mold according to claim 4, characterized in that, Wear-resistant blocks are provided on both the first and second wedge-tightening inclined surfaces.

6. The novel turnover basket injection mold according to claim 1, characterized in that, The four side mold sliders are provided with a fifth wedge-shaped inclined surface at both the left and right ends of their inner sides.

7. The novel turnover basket injection mold according to claim 1, characterized in that, Each of the four side mold sliders includes a slider seat and a slider head that is detachably disposed inside the slider seat.

8. The novel turnover basket injection mold according to claim 1, characterized in that, The demolding mechanism inside the fixed mold pull plate also includes four linear guide components respectively disposed at the four corners of the fixed mold pull plate. Each of the four linear guide components includes a linear guide rod and a guide sleeve. The four guide sleeves are respectively installed at the four corners of the fixed mold pull plate. One end of each of the four linear guide rods is connected to the four corners of the moving mold plate, and the other end of each of the four linear guide rods is slidably sleeved in the four guide sleeves.

9. The novel turnover basket injection mold according to claim 1, characterized in that, The fixed mold tie rod includes a first tie rod, a second tie rod, and a third tie rod disposed between the first tie rod and the second tie rod. The end of the first tie rod away from the third tie rod is connected to the fixed mold plate, and the end of the second tie rod away from the first tie rod is connected to the fixed mold pull plate.

10. The novel turnover basket injection mold according to claim 1, characterized in that, Cooling systems are provided in the fixed template, the moving template, the cavity, the core, and the four side mold sliders.

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