Oven shell injection mold and manufacturing equipment

Abstract

The utility model discloses an oven shell injection mold and manufacturing equipment, the oven shell injection mold comprises a base, two support columns, a rear mold plate, a front mold plate, a runner mold plate and a top plate which are sequentially arranged from bottom to top, the two support columns are respectively arranged on two sides of the top surface of the base and are used for supporting the rear mold plate, and the top plate is provided with a glue injection nozzle. And the runner template is provided with a conical drainage channel communicated with the glue injection nozzle. The front mold plate is provided with an upper mold core, the rear mold plate is provided with a lower mold core, the upper mold core is in a groove shape and covers the lower mold core so as to form a cavity with the lower mold core, the upper mold core is provided with a plurality of forming convex plates, a plurality of forming bosses are evenly arranged on the forming convex plates, forming convex columns are arranged at the two ends of the upper mold core in the length direction, and the lower mold core is provided with a plurality of forming concave positions. The forming concave positions correspond to the forming convex plates in a one-to-one mode, the two ends of the lower mold core in the length direction are provided with receding positions, the rear mold plate is provided with inserts, the inserts are arranged in the receding positions in a penetrating mode, and the receding positions correspond to the forming convex columns in position.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliance manufacturing, in particular to an injection mold for an oven shell and manufacturing equipment. Background Art

[0002] Reference Figure 1 The invention provides an oven housing having a rectangular shape and a groove. The bottom of the groove is provided with a plurality of heat dissipation protrusions, each of which is evenly distributed with a plurality of heat dissipation holes. The oven housing is provided with mounting grooves at both ends along its length, each of which is provided with mounting holes for mounting the oven body. Conventional oven housing production methods often suffer from low production efficiency and low finished product precision, making them unsuitable for production and use. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides an oven shell injection mold that enables single-step molding through a cavity composed of an upper mold core, a lower mold core, and inserts. This allows for precise molding of the oven shell's grooves, heat dissipation convex plates, and mounting slots, improving production efficiency and ensuring product quality and performance.

[0004] The utility model also provides an oven shell manufacturing device having the oven shell injection mold.

[0005] According to the first embodiment of the present invention, the oven housing injection mold is rectangular and has a groove. The bottom of the groove is provided with a plurality of heat dissipation protrusions, each of which is evenly distributed with a plurality of heat dissipation holes. The oven housing is provided with mounting grooves at both ends along its length, each of which is provided with mounting holes for mounting the oven body. The oven housing injection mold includes a base, a support, a rear template, a front template, a runner template, and a top plate, arranged in order from bottom to top. The support is provided in two pieces, one on each side of the top surface of the base, for supporting the rear template. The top plate is provided with a glue injection nozzle, and the runner template is provided with a tapered drainage channel connected to the glue injection nozzle. The front template is provided with an upper mold core, and the rear template is provided with a lower mold core. The upper mold core is groove-shaped and covers the lower mold core to form a mold cavity with the lower mold core. The upper mold core is provided with a plurality of molding convex plates, and a plurality of molding bosses are evenly arranged on the molding convex plates. The upper mold core is provided with molding convex columns at both ends along the length direction, and the lower mold core is provided with a plurality of molding recesses, and the molding recesses correspond one-to-one with the molding convex plates, and are used for molding the heat dissipation convex plates and the heat dissipation holes. The lower mold core is provided with avoidance positions at both ends along the length direction, and the rear template is provided with inserts, and the inserts are passed through the avoidance positions. The avoidance positions correspond to the positions of the molding convex columns, and are used for molding the mounting grooves and the mounting holes.

[0006] The injection mold for the oven shell according to the embodiment of the utility model has at least the following beneficial effects: first, the molten plastic material is injected into the conical drainage channel of the runner template through the glue injection nozzle. Under the guidance of the conical drainage channel, the plastic material evenly and quickly fills the cavity composed of the upper mold core of the front template and the lower mold core of the rear template. The plastic cools and solidifies in the mold cavity to form an oven shell with grooves, heat dissipation convex plates and mounting grooves. Then the mold is demoulded, the oven shell is taken out, and subsequent processing is carried out to complete the entire production process. It should be noted that the precise molding of the heat dissipation convex plates and the heat dissipation holes is achieved by the precise matching of the molding convex plates of the upper mold core and the molding concave positions of the lower mold core. At the same time, the design of the inserts also ensures the accuracy of the mounting grooves and mounting holes, thereby improving the overall manufacturing efficiency and meeting the needs of production use. On the other hand, the mold material utilization rate is high, and it is easy to maintain and service, thereby reducing production costs and repair expenses.

[0007] According to some embodiments of the present invention, the rear template is further provided with a plurality of sliders, which are adjacent to the lower mold core and are arranged on one side of the lower mold core along the length direction of the rear template. The plurality of sliders, the lower mold core, and the upper mold core together constitute the mold cavity.

[0008] According to some embodiments of the present invention, the top plate is connected to a driving column, which passes through the runner template and the front template and is connected to the slider. A guide column is provided at the bottom of the driving column, and the slider is provided with a guide groove. The guide groove is inclined toward the outside from the lower mold core, and the guide column is inserted into the guide groove. When the front template is separated from the rear template, the guide column abuts the side wall of the guide groove to drive the slider to slide away from the lower mold core.

[0009] According to some embodiments of the present invention, there are three sliders, which are evenly and equidistantly arranged on the same side of the lower mold core along the length direction of the rear mold plate, and there are correspondingly three driving columns.

[0010] According to some embodiments of the present invention, the front template is provided with three accommodating grooves, the three accommodating grooves correspond one-to-one to the positions of the three sliders, and the sliders are embedded in the accommodating grooves.

[0011] According to some embodiments of the present invention, the front template is provided with a glue injection pipe, and the glue injection pipe includes a glue inlet pipe, a guide pipe and a diversion pipe that are interconnected. The glue inlet pipe is located in the middle of the guide pipe and is connected to the drainage channel. There are multiple diversion pipes, and multiple diversion pipes are correspondingly arranged on both sides of the guide pipe. The diversion pipe is provided with an injection port, and the injection port is connected to the mold cavity.

[0012] According to some embodiments of the present invention, six diverter tubes are provided, two of which are arranged on both sides of the middle of the guide tube, and the remaining four are arranged on both sides of the end of the guide tube.

[0013] According to some embodiments of the present invention, the lower mold core includes a first forming platform and a second forming platform, and the first forming platform and the second forming platform are spliced ​​with each other.

[0014] According to some embodiments of the present invention, a ejecting assembly is provided at the bottom of the lower mold core, the ejecting assembly passes through the rear mold plate and is slidably connected to the base, and the lower mold core moves toward the rear mold plate to drive the lower mold core to eject the formed oven shell.

[0015] According to an embodiment of the second aspect of the present invention, an oven shell manufacturing device includes the oven shell injection mold as described in any one of the above items.

[0016] The oven shell manufacturing equipment according to the embodiment of the utility model has at least the following beneficial effects: it can automatically complete the process flows of injection molding, forming, demolding and removal of the oven shell, the entire equipment is highly automated, reducing manual intervention and waiting time, improving production efficiency, and reducing production costs and labor costs by optimizing production processes and the application of automated equipment.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0019] Figure 1 This is a schematic diagram of an oven housing according to an embodiment of the present invention;

[0020] Figure 2 This is an exploded schematic diagram of an injection mold for an oven housing according to an embodiment of the present invention;

[0021] Figure 3 This is a cross-sectional schematic diagram of a slider and a driving column of an injection mold for an oven housing according to an embodiment of the present utility model;

[0022] Figure 4 This is a schematic diagram of the front template of the injection mold for the oven shell according to an embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the glue injection pipe of the injection mold for the oven shell according to an embodiment of the present utility model.

[0024] Figure markings: oven shell 100; groove 110; heat dissipation protrusion 120; heat dissipation hole 130; installation groove 140; installation hole 150; base 200; pillar 210; ejector assembly 220; rear template 300; lower mold core 310; first molding platform 310a; second molding platform 310b; molding recess 311; avoidance position 312; insert 313; slider 320; guide groove 321; drive column 330; guide column 331; front template 400; upper mold core 410; molding protrusion 411; molding protrusion 412; molding protrusion 413; accommodating groove 420; runner template 500; drainage channel 510; top plate 600; glue injection nozzle 610; glue injection tube 700; glue inlet tube 710; guide tube 720; diverter tube 730 injection port 731; cavity 800. DETAILED DESCRIPTION

[0025] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0026] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention 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 cannot be understood as limitations on the present invention.

[0027] In the description of this utility model, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0028] In the description of this utility model, unless otherwise expressly defined, terms such as "set," "install," and "connect" should be interpreted broadly. Those skilled in the art can reasonably determine the specific meanings of these terms in the present utility model based on the specific content of the technical solution. In the description of this utility model, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with such embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of these terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any appropriate manner in any one or more embodiments or examples. In the description of this specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with such embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of these terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0029] Reference Figure 1 The present invention provides an oven housing 100. The oven housing 100 is rectangular and has a recess 110. The recess 110 has a plurality of heat dissipation convex plates 120 disposed at its bottom. Each heat dissipation convex plate 120 is evenly distributed with a plurality of heat dissipation holes 130 extending therethrough. The oven housing 100 has mounting grooves 140 disposed at both ends along its length. Each mounting groove 140 has mounting holes 150 disposed therein for mounting the oven body. Conventional oven housing production methods often suffer from low production efficiency and low finished product precision, making them unsuitable for production and use.

[0030] For this purpose, refer to Figure 2 、 Figure 3 、 Figure 4 and Figure 5The utility model proposes an injection mold for an oven shell 100, including a base 200, a pillar 210, a rear template 300, a front template 400, a runner template 500 and a top plate 600 arranged in sequence from bottom to top. There are two pillars 210, which are arranged on both sides of the top surface of the base 200 to support the rear template 300. The top plate 600 is provided with a glue injection nozzle 610, and the runner template 500 is provided with a tapered drainage channel 510 connected to the glue injection nozzle 610. The front template 400 is provided with an upper mold core 410, which is groove-shaped and covers the lower mold core 310 to form a mold cavity 800 with the lower mold core 310. The upper mold core 410 is provided with a plurality of molding convex plates 411, and a plurality of molding bosses 412 are evenly arranged on the molding convex plates 411. The upper mold core 410 is provided with molding protrusions 413 at both ends along the length direction. The rear template 300 is provided with a lower mold core 310, and the lower mold core 310 is provided with a plurality of molding recesses 311. The molding recesses 311 correspond one-to-one with the molding protrusions 411 and are used to form the heat dissipation protrusions 120 and the heat dissipation holes 130. The lower mold core 310 is provided with avoidance positions 312 at both ends along the length direction. The rear template 300 is provided with an insert 313, which is passed through the avoidance position 312. The avoidance position 312 corresponds to the position of the molding protrusion 413 and is used to form the positioning groove and the mounting hole 150.

[0031] Specifically, the base 200 serves as the foundation of the entire mold, supporting the entire mold structure and ensuring stability during the injection molding process. Two supports 210 are provided, one on each side of the top surface of the base 200, to support the rear mold plate 300 and prevent deformation during the injection molding process. The rear mold plate 300 is equipped with a lower mold core 310 and an insert 313. The lower mold core 310 forms the mold cavity 800 with the upper mold core 410. The molding recesses 311 on the lower mold core 310 correspond one-to-one with the molding protrusions 411 of the upper mold core 410, forming the molding space for the heat dissipation protrusions 120 and the heat dissipation holes 130. The insert 313 is inserted into the clearance 312 to form the mounting grooves 140 and mounting holes 150. The front mold plate 400 is equipped with an upper mold core 410. The upper mold core 410 is groove-shaped and covers the lower mold core 310. Together, the two form the mold cavity 800. The upper mold core 410 is provided with several molding protrusions 411, each of which is evenly distributed with multiple molding bosses 412, which are used to form the heat dissipation holes 130 on the heat dissipation protrusions 120. At both ends of the upper mold core 410 along its length, molding protrusions 413 are provided, which cooperate with the inserts 313 to form the mounting grooves 140. The runner plate 500 is provided with a tapered drainage channel 510, which connects the injection nozzle 610 with the mold cavity 800, ensuring that the plastic material can evenly and quickly fill the mold cavity 800 during the injection molding process. The top plate 600 is provided with an injection nozzle 610, which is used to connect to the nozzle of the injection molding machine to inject the molten plastic material into the mold.

[0032] In a specific embodiment, molten plastic material is first injected into the tapered drainage channel 510 of the runner template 500 through the injection nozzle 610. Guided by the tapered drainage channel 510, the plastic material evenly and quickly fills the mold cavity 800 formed by the upper mold core 410 of the front template 400 and the lower mold core 310 of the rear template 300. The plastic cools and solidifies within the mold cavity 800, forming an oven shell 100 having a groove 110, a heat dissipation protrusion 120, and a mounting groove 140. The oven shell 100 is then demolded, removed, and subsequently processed, completing the entire production process. It should be noted that the precise fit between the molding protrusion 411 of the upper mold core 410 and the molding recess 311 of the lower mold core 310 enables the precise molding of the heat dissipation protrusion 120 and the heat dissipation hole 130. At the same time, the design of the insert 313 also ensures the accuracy of the mounting groove 140 and the mounting hole 150, thereby improving overall manufacturing efficiency and meeting the requirements of production use. On the other hand, the mold material utilization rate is high and it is easy to maintain and service, which reduces production costs and maintenance costs.

[0033] Reference Figure 2 and Figure 3 Multiple sliders 320 are disposed on the rear mold plate 300, adjacent to the lower mold core 310 and distributed along the length of the rear mold plate 300 on one side of the lower mold core 310. During the injection molding process, these sliders 320, together with the lower mold core 310 and the upper mold core 410, form a complete mold cavity 800. This facilitates separation of the finished product from the mold itself during demolding. In other embodiments, for oven housings 100 with complex structures or deep grooves 110, the sliders 320 can effectively reduce surface damage or deformation of the finished product.

[0034] Furthermore, the top plate 600 is connected to the slider 320 via a drive post 330. The drive post 330 passes through the runner template 500 and the front template 400, and the guide post 331 provided at its bottom is inserted into the guide groove 321 of the slider 320. The guide groove 321 is inclined outward from the lower mold core 310. When the front mold core 400 separates from the rear mold core 300, the guide post 331 will abut the side wall of the guide groove 321, thereby driving the slider 320 to slide away from the lower mold core 310 and achieve demolding. The use of the slider 320 in conjunction with the upper mold core 410 and the lower mold core 310 makes the demolding process smoother and reduces the resistance caused by friction. In addition, the top plate 600 and the drive post 330 can achieve automatic demolding of the slider 320 through mechanical transmission, improving the automation level of the production line.

[0035] Reference Figure 2In this specific embodiment, three sliders 320 are provided, evenly spaced along the length of the rear mold plate 300 and on the same side of the lower mold core 310. Accordingly, three accommodating grooves 420 are provided on the front mold plate 400, corresponding one-to-one with the positions of the sliders 320, allowing the sliders 320 to be inserted into the accommodating grooves 420. The equidistant distribution of multiple sliders 320 ensures more balanced forces on the mold during the injection and demolding processes, reducing mold damage caused by stress concentration.

[0036] Reference Figure 2 and Figure 5 The glue injection pipe 700 provided on the front template 400 includes a glue inlet pipe 710, a guide pipe 720, and a plurality of injection ports 731 of the diverter pipe 730. The glue inlet pipe 710 is located in the middle of the guide pipe 720 and is connected to the drainage channel 510. The plurality of injection ports 731 of the diverter pipe 730 are provided on both sides of the guide pipe 720 to evenly distribute the plastic material to various parts of the cavity 800. The arrangement of the injection ports 731 of the diverter pipe 730 takes into account the geometric shape of the cavity 800 and the injection fluidity of the injection molding, ensuring uniform filling of the plastic material and uniform distribution of the plastic material within the cavity 800, thereby reducing the generation of defects such as bubbles and shrinkage cavities. Preferably, there are six injection ports 731 of the diverter pipe 730, of which two injection ports 731 of the diverter pipe 730 are provided on both sides of the middle of the diverter pipe 720, and the remaining four injection ports 731 of the diverter pipe 730 are provided on both sides of the end of the diverter pipe 720.

[0037] Reference Figure 2 The lower mold core 310 is composed of a first forming table 310a and a second forming table 310b joined together. This split design facilitates mold processing, assembly, and maintenance. Before injection molding, the two forming tables are precisely joined together to form a complete lower mold core 310. It should be noted that the split structure of the lower mold core 310 makes it more flexible and convenient to maintain and replace. If a part of the mold becomes worn or damaged, only the corresponding split section needs to be replaced, rather than the entire mold, thus reducing maintenance costs and time. Furthermore, the first forming table 310a and the second forming table 310b can be processed and manufactured separately, which helps reduce processing difficulty and complexity. Each part can be fine-machined independently to ensure dimensional accuracy and surface quality, and then assembled using precise positioning devices to form the complete lower mold core 310. Furthermore, compared to a monolithic lower mold core 310 structure, the split lower mold core 310 is generally less expensive to manufacture. Because the split structure allows the use of simpler processing methods and less material to manufacture each part, and can reduce manufacturing costs through standardized and modular design.

[0038] Reference Figure 2The ejector assembly 220 provided at the bottom of the lower mold core 310 passes through the rear mold plate 300 and is slidably connected to the base 200. When the injection molding is completed and the mold is opened, the ejector assembly 220 moves upward, driving the lower mold core 310 to rise together, thereby ejecting the formed oven shell 100 from the mold.

[0039] The present invention also provides an oven housing 100 manufacturing apparatus, comprising the oven housing 100 injection mold described in all of the above claims and, in specific embodiments, further comprising an injection molding machine, a control system, and other auxiliary devices. These devices, collectively comprising the oven housing 100 manufacturing apparatus, automatically complete the injection molding, forming, demolding, and removal processes of the oven housing 100. The entire apparatus is highly automated, reducing manual intervention and waiting time, improving production efficiency, and reducing production and labor costs through optimized production processes and the use of automated equipment.

[0040] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. An injection mold for an oven shell, wherein the oven shell is rectangular and has a groove, wherein the bottom of the groove is provided with a plurality of heat dissipation convex plates, wherein the heat dissipation convex plates are evenly provided with a plurality of penetrating heat dissipation holes, and the oven shell is provided with mounting grooves at both ends along the length direction, wherein the mounting grooves are provided with mounting holes for mounting the oven body, wherein: include: The base, pillars, rear template, front template, flow channel template and top plate are arranged in sequence from bottom to top. There are two pillars, which are arranged on both sides of the top surface of the base for supporting the rear template. The top plate is provided with a glue injection nozzle, and the flow channel template is provided with a tapered drainage channel connected to the glue injection nozzle. The front template is provided with an upper mold core, and the rear template is provided with a lower mold core. The upper mold core is groove-shaped and covers the lower mold core to form a mold cavity with the lower mold core. The upper mold core is provided with a plurality of molding convex plates, and a plurality of molding bosses are evenly arranged on the molding convex plates. The upper mold core is provided with molding convex columns at both ends along the length direction, and the lower mold core is provided with a plurality of molding recesses, and the molding recesses correspond one-to-one with the molding convex plates, and are used for molding the heat dissipation convex plates and the heat dissipation holes. The lower mold core is provided with avoidance positions at both ends along the length direction, and the rear template is provided with inserts, and the inserts are passed through the avoidance positions. The avoidance positions correspond to the positions of the molding convex columns, and are used for molding the mounting grooves and the mounting holes.

2. The oven shell injection mold according to claim 1, characterized in that: The rear template is also provided with a plurality of sliders, which are adjacent to the lower mold core and are arranged on one side of the lower mold core along the length direction of the rear template. The plurality of sliders, the lower mold core and the upper mold core together constitute the mold cavity.

3. The oven shell injection mold according to claim 2, characterized in that: The top plate is connected to a driving column, which passes through the runner template and the front template and is connected to the slider. A guide column is provided at the bottom of the driving column, and the slider is provided with a guide groove. The guide groove is inclined toward the outside from the lower mold core. The guide column is inserted into the guide groove. When the front template is separated from the rear template, the guide column abuts against the side wall of the guide groove to drive the slider to slide away from the lower mold core.

4. The oven shell injection mold according to claim 3, characterized in that: There are three sliders, which are evenly and equidistantly arranged on the same side of the lower mold core along the length direction of the rear mold plate, and there are correspondingly three driving columns.

5. The oven shell injection mold according to claim 4, characterized in that: The front template is provided with three accommodating grooves, the three accommodating grooves correspond to the positions of the three sliding blocks one by one, and the sliding blocks are embedded in the accommodating grooves.

6. The oven shell injection mold according to claim 1, characterized in that: The front template is provided with a glue injection pipe, which includes a glue inlet pipe, a guide pipe and a diversion pipe that are interconnected. The glue inlet pipe is located in the middle of the guide pipe and is connected to the drainage channel. There are multiple diversion pipes, and multiple diversion pipes are correspondingly arranged on both sides of the guide pipe. The diversion pipe is provided with an injection port, and the injection port is connected to the mold cavity.

7. The oven shell injection mold according to claim 6, characterized in that: There are six diverter pipes, two of which are arranged on both sides of the middle of the guide pipe, and the remaining four are arranged on both sides of the end of the guide pipe.

8. The oven shell injection mold according to claim 1, characterized in that: The lower mold core includes a first forming platform and a second forming platform, and the first forming platform and the second forming platform are spliced ​​with each other.

9. The oven shell injection mold according to claim 1, characterized in that: A ejector assembly is provided at the bottom of the lower mold core, and the ejector assembly passes through the rear mold plate and is slidably connected to the base. The lower mold core moves toward the rear mold plate to drive the lower mold core to eject the formed oven shell.

10. An oven shell manufacturing device, characterized in that: The invention comprises the oven shell manufacturing equipment according to any one of claims 1 to 9.

Images