Injection mold for producing front cover of air purifier

Abstract

The utility model relates to the technical field of air purifier front cover production, and discloses an injection mold for air purifier front cover production, which comprises a mold body and a top cover, the top cover is arranged on the upper side of the mold body, an injection port is arranged in the top cover, a molding cavity is arranged in the top cover, and the injection port is communicated with the molding cavity. The mold body is provided with a forming block corresponding to the forming cavity, the fixing block and the ejector block are driven by the driving air cylinder to ascend, and in the lifting process, a lever effect can be generated after the lifting rod touches the stop block, so that the other end of the lifting rod pushes the ejector block and the ejector rod upwards; according to the air purifier front cover cooling device, the cooled air purifier front cover is driven to eject the cooled air purifier front cover, discharging is conducted, the problem that parts in a mold are stuck is effectively solved, the working efficiency and the product quality are improved, and meanwhile the accuracy and stress balance of a mold ejecting assembly are ensured through the arrangement of a limiting plate and a limiting rod.

Description

Technical Field

[0001] The utility model relates to the technical field of production of front covers of air purifiers, in particular to an injection mold for producing the front covers of air purifiers. Background Art

[0002] The front cover of the air purifier is used to protect the internal filter device and the housing of the electronic components. Its main function is to prevent dust, foreign matter, water droplets, etc. from entering the interior of the purifier, and it also plays a role in aesthetics.

[0003] The production of the front cover of the air purifier usually requires the use of an injection mold. An injection mold is a tool used in the production of plastic products that can inject molten plastic material into the mold and form the desired product shape after cooling.

[0004] The general steps of injection mold production of air purifier front cover are: the prepared plastic particles are fed into the hopper of the injection molding machine, and the plastic is melted and injected into the cavity of the mold through heating and the rotation of the screw. The cooling system in the mold allows the plastic to cool and form quickly, and then the mold cavity opens to obtain a solid air purifier front cover.

[0005] Due to the high requirements on the appearance and details of the front cover of the air purifier, some or all of the parts may be stuck in the mold cavity after the injection molding is completed, which will increase the difficulty of demolding and may lead to reduced work efficiency; therefore, it does not meet the existing needs. In this regard, we propose an injection mold for the production of the front cover of the air purifier. Utility Model Content

[0006] The utility model provides an injection mold for producing a front cover of an air purifier, which effectively solves the problem of parts getting stuck in the mold, solves the problem of parts getting stuck in the mold, and improves work efficiency and product quality. At the same time, the setting of a limit plate and a limit rod ensures the accuracy of the top mold assembly and the beneficial effect of force balance, and solves the problem mentioned in the above background technology that due to the high requirements on the shape and details of the front cover of the air purifier, part or all of the parts of the mold may be stuck in the mold cavity after injection molding, resulting in increased difficulty in demolding, which may lead to reduced work efficiency.

[0007] The utility model provides the following technical solution: an injection mold for producing a front cover of an air purifier, comprising a mold body and a top cover, wherein the top cover is arranged on the upper side of the mold body, an injection port is opened in the top cover, a molding cavity is opened in the top cover, the injection port is communicated with the molding cavity, a molding block corresponding to the molding cavity is opened on the mold body, a cavity is opened in the mold body, and a top mold assembly is arranged in the cavity.

[0008] As an optional solution for the injection mold for producing the front cover of an air purifier described in the utility model, wherein: the top mold assembly includes a driving cylinder inserted in the cavity, a fixed block is installed at the output end of the driving cylinder, a top block is installed on the fixed block, a top rod is installed on the top block, a slot corresponding to the top rod is opened in the mold body and the molding block, the top rod is inserted in the slot, and a lifting frame for pushing the top block is arranged between the top block and the fixed block.

[0009] As an optional solution for the injection mold for producing the front cover of an air purifier described in the utility model, wherein: a limit plate for limiting the lifting frame is installed on the fixed block, the limit plate is arranged on both sides of the lifting frame, a limit rod is provided in the lifting frame, a limit groove is provided in the limit plate, and both ends of the limit rod are inserted into the limit groove.

[0010] As an optional solution for the injection mold for producing the front cover of an air purifier described in the utility model, a stopper is installed in the cavity, the stopper is fixedly installed on the inner wall of the cavity, and the stopper is located on the upper side of the lifting frame.

[0011] As an optional solution for the injection mold for producing the front cover of an air purifier described in the utility model, wherein: a buffer rod is installed on the fixed block, and a buffer spring is provided on the outer sleeve of the buffer rod, one end of the buffer spring is connected to the bottom of the top block, and the other end of the buffer spring is connected to the top of the fixed block, and the buffer rod and the buffer spring are both located on the side of the lifting frame.

[0012] As an optional solution for the injection mold for producing the front cover of an air purifier described in the utility model, wherein: the cross-section of the lifting frame is set in an L shape, grooves are opened in both ends of the lifting frame, rotating wheels are set in the grooves, rotating rods are inserted in the rotating wheel and the lifting frame, and fixed plates are installed at both ends of the rotating rod, the fixing plates are set as circular plates, and the fixing plates are located on the outside of the lifting frame, and a damping ring is set outside the rotating wheel, and the damping ring is set as a rubber ring.

[0013] As an optional solution for the injection mold for producing the front cover of an air purifier described in the utility model, wherein: a top plate is installed on the molding block, the bottom of the top plate is fixedly installed with the top of the top rod, the top plate corresponds to the molding block, and the surface of the top plate is provided with an anti-stick coating.

[0014] As an optional solution for the injection mold for producing the front cover of an air purifier described in the utility model, a base is installed at the bottom of the mold body, the base corresponds to the top cover, and a hydraulic rod for controlling the top cover is installed on the base, and the hydraulic rods are distributed in a rectangular array outside the mold body.

[0015] The utility model has the following beneficial effects:

[0016] 1. The injection mold for producing the front cover of the air purifier drives the fixed block and the ejector block to rise by driving the cylinder. During the lifting process, a lever effect is generated after the lifting rod hits the block, so that the other end of the lifting rod pushes the ejector block and the ejector rod upward, thereby driving the ejector plate to eject the cooled front cover of the air purifier and unload the material, which effectively solves the problem of parts stuck in the mold, solves the problem of parts stuck in the mold, and improves work efficiency and product quality. At the same time, the setting of the limit plate and the limit rod ensures the accuracy and force balance of the top mold assembly.

[0017] 2. The injection mold used to produce the front cover of the air purifier has a buffer rod installed on the fixed block, and a buffer spring is provided on the outer sleeve of the buffer rod so that when the top mold assembly is lifted, the buffer spring will absorb the impact and pressure generated during the lifting process, reducing the risk of damage to parts or molds. The function of the buffer rod is to support and fix the buffer spring to ensure its normal operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main three-dimensional structure of the utility model.

[0019] Figure 2 It is a schematic diagram of the main body cutaway structure of the utility model.

[0020] Figure 3 It is a schematic diagram of the cutaway structure of the mold body of the utility model.

[0021] Figure 4 It is a schematic diagram of the enlarged structure of point A of the utility model.

[0022] Figure 5 It is a partially cutaway structural schematic diagram of the utility model.

[0023] In the figure: 100, mold body; 110, molding cavity; 120, base; 121, hydraulic rod; 200, top cover; 210, molding block; 220, cavity; 221, stopper; 300, top mold assembly; 310, driving cylinder; 320, fixed block; 321, buffer rod; 322, buffer spring; 330, top block; 340, top rod; 350, slot; 360, lifting frame; 361, limit rod; 362, groove; 363, rotating wheel; 364, rotating rod; 365, fixed plate; 366, damping ring; 370, limit plate; 371, limit groove; 380, top plate; 381, anti-stick coating. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Embodiment 1: This embodiment is intended to solve the problem that due to the high requirements on the appearance and details of the front cover of the air purifier, some or all of the parts may be stuck in the mold cavity after the injection molding is completed, which increases the difficulty of demolding and may lead to reduced work efficiency. Please refer to Figure 1 - Figure 5 An injection mold for producing a front cover of an air purifier includes a mold body 100 and a top cover 200. The top cover 200 is arranged on the upper side of the mold body 100. An injection port is provided in the top cover 200. A molding cavity 110 is provided in the top cover 200. The injection port is communicated with the molding cavity 110. A molding block 210 corresponding to the molding cavity 110 is provided on the mold body 100. A cavity 220 is provided in the mold body 100. A top mold assembly 300 is provided in the cavity 220. Molten plastic is injected into the injection port of the top cover 200 and enters the mold body 100 through the connected molding cavity 110. The arrangement of the molding block 210 ensures that the plastic can fully fill the molding cavity 110 during the injection molding process and achieve the desired shape and detail requirements.

[0026] The top mold assembly 300 includes a driving cylinder 310 inserted into the cavity 220, a fixed block 320 is installed at the output end of the driving cylinder 310, a top block 330 is installed on the fixed block 320, and a top rod 340 is installed on the top block 330. A slot 350 corresponding to the top rod 340 is opened in the mold body 100 and the molding block 210, and the top rod 340 is inserted in the slot 350. A lifting frame 360 ​​for pushing the top block 330 is arranged between the top block 330 and the fixed block 320. Through the movement of the driving cylinder 310, the driving force is transmitted to the top block 330 through the fixed block 320, so that the top block 330 moves along the axial direction of the top rod 340. The top rod 340 is inserted in the slot 350 in the mold body 100 and the molding block 210, so that the position of the top rod 340 is kept stable. The top block 330 is pushed by the lifting frame 360, and the lifting movement of the top mold assembly 300 is realized. By driving the cylinder 310 , the ejector assembly 300 can move up and down as needed, thereby ejecting the parts in the injection mold.

[0027] The fixed block 320 is provided with a limit plate 370 for limiting the lifting frame 360. The limit plates 370 are arranged on both sides of the lifting frame 360. The lifting frame 360 ​​is provided with a limit rod 361. The limit plate 370 is provided with a limit slot 371. Both ends of the limit rod 361 are inserted into the limit slot 371. A stopper 221 is installed in the cavity 220. The stopper 221 is fixedly mounted on the inner wall of the cavity 220 and is located on the upper side of the lifting frame 360. It ensures that the top mold assembly 300 has an accurate position during the lifting process and prevents over-extension and uneven force. The setting of the limit plate 370 and the limit rod 361 ensures the accuracy and force balance of the top mold assembly 300, and ensures the stability and reliability of the operation.

[0028] In this embodiment: the fixed block 320 and the top block 330 are driven to rise by driving the cylinder 310. During the lifting process, the lifting rod will generate a lever effect after hitting the stop block 221, so that the other end of the lifting rod will push the top block 330 and the top rod 340 upward, thereby driving the top plate 380 to eject the cooled air purifier front cover and unload the material, thereby effectively solving the problem of parts stuck in the mold, solving the problem of parts stuck in the mold, and improving work efficiency and product quality. At the same time, the setting of the limit plate 370 and the limit rod 361 ensures the accuracy and force balance of the top mold assembly 300.

[0029] Embodiment 2: This embodiment is intended to solve the problem that long-term use and wear may cause fatigue of the internal parts of the mold, which may cause cracks, fractures and other damage to the parts or components, thereby reducing the life and use effect of the mold. This embodiment is an improvement made on the basis of embodiment 1. For details, please refer to Figure 1 - Figure 5 .

[0030] A buffer rod 321 is installed on the fixed block 320, and a buffer spring 322 is provided on the outer sleeve of the buffer rod 321. One end of the buffer spring 322 is connected to the bottom of the top block 330, and the other end of the buffer spring 322 is connected to the top of the fixed block 320. The buffer rod 321 and the buffer spring 322 are both located on the side of the lifting frame 360. It can play a role in buffering and energy absorption. When the top mold assembly 300 is lifted, the buffer spring 322 will absorb the impact and pressure generated during the lifting process, reducing the risk of damage to parts or molds. The function of the buffer rod 321 is to support and fix the buffer spring 322 to ensure its normal operation.

[0031] The lifting frame 360 ​​is L-shaped in cross-section, which can provide more stable support and prevent tilting, and increase the stability and balance of the lifting frame 360. Grooves 362 are provided at both ends of the lifting frame 360, and a rotating wheel 363 is provided in the groove 362. A rotating rod 364 is inserted into the rotating wheel 363 and the lifting frame 360, which can provide better movement and rotation effects and reduce the friction and wear of the lifting frame 360. Fixed plates 365 are installed at both ends of the rotating rod 364. The fixed plate 365 is set as a circular plate, and the fixed plate 365 is located on the outside of the lifting frame 360. A damping ring 366 is set outside the rotating wheel 363, and the damping ring 366 is set as a rubber ring. The function of the damping ring 366 is to provide a damping effect, slow down the speed and impact of the lifting frame 360, and reduce the risk of wear and damage.

[0032] A top plate 380 is mounted on the molding block 210, the bottom of the top plate 380 is fixedly mounted on the top of the top rod 340, the top plate 380 corresponds to the molding block 210, and an anti-stick coating 381 is provided on the surface of the top plate 380. This can reduce adhesion and friction during the molding process, extend the service life of the mold and improve the quality of the finished product.

[0033] A base 120 is installed at the bottom of the mold body 100, and the base 120 corresponds to the top cover 200. A hydraulic rod 121 for controlling the top cover 200 is installed on the base 120, and the hydraulic rod 121 is distributed in a rectangular array outside the mold body 100. Such a design can provide better control and stability to ensure the normal movement and operation of the top cover 200.

[0034] In this embodiment: a buffer rod 321 is installed on the fixed block 320, and a buffer spring 322 is provided on the outer sleeve of the buffer rod 321, so that when the top mold assembly 300 is lifted, the buffer spring 322 will absorb the impact and pressure generated during the lifting process, reducing the risk of damage to parts or molds. The function of the buffer rod 321 is to support and fix the buffer spring 322 to ensure its normal operation.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An injection mold for producing a front cover of an air purifier, comprising a mold body (100) and a top cover (200), characterized in that: The top cover (200) is arranged on the upper side of the mold body (100), an injection port is provided in the top cover (200), a molding cavity (110) is provided in the top cover (200), the injection port is communicated with the molding cavity (110), a molding block (210) corresponding to the molding cavity (110) is provided on the mold body (100), a cavity (220) is provided in the mold body (100), and a top mold assembly (300) is provided in the cavity (220).

2. The injection mold for producing the front cover of an air purifier according to claim 1, characterized in that: The top mold assembly (300) includes a driving cylinder (310) inserted into the cavity (220), a fixed block (320) is installed at the output end of the driving cylinder (310), a top block (330) is installed on the fixed block (320), a top rod (340) is installed on the top block (330), a slot (350) corresponding to the top rod (340) is opened in the mold body (100) and the molding block (210), the top rod (340) is inserted in the slot (350), and a lifting frame (360) for pushing the top block (330) is arranged between the top block (330) and the fixed block (320).

3. The injection mold for producing the front cover of an air purifier according to claim 2, characterized in that: A limiting plate (370) for limiting the lifting frame (360) is installed on the fixed block (320); the limiting plate (370) is arranged on both sides of the lifting frame (360); a limiting rod (361) is provided in the lifting frame (360); a limiting groove (371) is provided in the limiting plate (370); and both ends of the limiting rod (361) are inserted into the limiting grooves (371).

4. The injection mold for producing the front cover of an air purifier according to claim 2, characterized in that: A stopper (221) is installed in the cavity (220); the stopper (221) is fixedly installed on the inner wall of the cavity (220), and the stopper (221) is located on the upper side of the lifting frame (360).

5. The injection mold for producing the front cover of an air purifier according to claim 2, characterized in that: A buffer rod is installed on the fixed block (320), and a buffer spring (322) is provided on the outer sleeve of the buffer rod (321). One end of the buffer spring (322) is connected to the bottom of the top block (330), and the other end of the buffer spring (322) is connected to the top of the fixed block (320), and the buffer rod (321) and the buffer spring (322) are both located on the side of the lifting frame (360).

6. The injection mold for producing the front cover of an air purifier according to claim 2, characterized in that: The lifting frame (360) has an L-shaped cross-section, and grooves (362) are provided at both ends of the lifting frame (360). A rotating wheel (363) is provided on the surface of the groove (362). A rotating rod (364) is inserted into the rotating wheel (363) and the lifting frame (360). Fixed plates (365) are installed at both ends of the rotating rod (364). The fixed plate (365) is configured as a circular plate, and the fixed plate (365) is located on the outside of the lifting frame (360). A damping ring (366) is provided outside the rotating wheel (363), and the damping ring (366) is configured as a rubber ring.

7. The injection mold for producing the front cover of an air purifier according to claim 2, characterized in that: A top plate (380) is installed on the forming block (210), the bottom of the top plate (380) is fixedly installed with the top of the top rod (340), the top plate (380) corresponds to the forming block (210), and an anti-stick coating (381) is provided on the surface of the top plate (380).

8. The injection mold for producing the front cover of an air purifier according to claim 1, characterized in that: A base (120) is installed at the bottom of the mold body (100), and the base (120) corresponds to the top cover (200). A hydraulic rod (121) for controlling the top cover (200) is installed on the base (120), and the hydraulic rods (121) are distributed in a rectangular array outside the mold body (100).

Images