Plastic product injection mold with secondary ejection structure

Abstract

The utility model provides a plastic product injection mold with a secondary ejection structure, and belongs to the technical field of plastic injection molds. The plastic product injection mold with the secondary ejection structure comprises an ejection structure and a mold body, the ejection structure comprises a base, a supporting frame, an ejection assembly, a connecting block, a reset assembly, a supporting rod, a limiting block and an ejection block, the supporting frame is arranged on one side of the base, the ejection assembly is arranged in the supporting frame, and the limiting block is arranged in the ejection assembly. The connecting block is connected with the supporting frame in a sliding mode, and the reset assembly is arranged in the supporting frame. According to the plastic product injection mold with the secondary ejection structure, secondary ejection is facilitated, product demolding is facilitated, the phenomena of deformation and warping are avoided, the product quality is improved, meanwhile, the product subjected to injection molding is conveniently cooled, demolding is facilitated, and mold adhesion in the ejection process is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of plastic injection molds, specifically, a plastic product injection mold with secondary ejection structure. BACKGROUND

[0002] A plastic injection mold is a special tool used in the process of plastic injection molding. It works by injecting heated and molten plastic into the mold cavity, and after cooling and solidification, the finished product is obtained. This mold is widely used in the production of plastic parts and products, and is particularly suitable for mass production of products with complex geometric shapes and high precision requirements, such as automobile parts, electronic housings, home appliances, toys, etc.

[0003] The current automobile battery cover plate is manufactured by injection molding. During the demolding process after product injection molding is completed, a one-time ejection structure is used, which causes deformation and warping, thereby reducing production quality and the practicality of the device. CONTENT OF THE INVENTION

[0004] In order to make up for the above shortcomings, the present application provides a plastic product injection mold with secondary ejection structure, which aims to improve the current automobile battery cover plate manufactured by injection molding. During the demolding process after product injection molding is completed, a one-time ejection structure is used, which causes deformation and warping, thereby reducing production quality and the practicality of the device.

[0005] The present application provides a plastic product injection mold with secondary ejection structure, which includes an ejection structure and a mold body. The ejection structure includes a base, a support frame, an ejection assembly, a connecting block, a reset assembly, a support rod, a limiting block, and a top block. The support frame is arranged on one side of the base, the ejection assembly is arranged in the support frame, the connecting block is connected with the support frame in a sliding manner, the reset assembly is arranged in the support frame, the connecting block is connected with the reset assembly, one end of the support rod is connected with the connecting block, the limiting block is connected with the support rod, the top block is arranged at one end of the limiting block, the mold body includes a mold main body, a top plate, and a cooling assembly. The mold main body is connected with the support frame, the top plate is connected with the mold main body in a sliding manner, the ejection assembly is connected with the top plate, the top block is arranged in the top plate, and the cooling assembly is arranged in the mold main body.

[0006] In a specific embodiment, the ejection assembly comprises an electric push rod, a lifting plate, a through hole, a first spring and an L-shaped sliding plate, the electric push rod is installed on one side of the base, the lifting plate is connected with the movable end of the electric push rod, the lifting plate is slidingly connected with the support frame, the lifting plate is provided with a plurality of through holes, the support rod is arranged in the through hole, the first spring is connected with the lifting plate and the L-shaped sliding plate at both ends, the L-shaped sliding plate is slidingly connected with the support frame, and the top plate is connected with the L-shaped sliding plate.

[0007] In the above implementation process, through the setting of the electric push rod, the lifting plate, the through hole, the first spring and the L-shaped sliding plate, the product after injection molding can be conveniently ejected.

[0008] In a specific embodiment, the support frame is provided with a sliding groove in the inner wall, and the L-shaped sliding plate is slidingly connected with the sliding groove.

[0009] In the above implementation process, through the sliding connection of the L-shaped sliding plate and the sliding groove, the movement of the L-shaped sliding plate can be conveniently limited.

[0010] In a specific embodiment, the reset assembly comprises a sliding rod and a second spring, the sliding rod is arranged in the support frame, the connecting block is slidingly connected with the sliding rod, and the second spring is sleeved on the sliding rod.

[0011] In the above implementation process, through the setting of the sliding rod and the second spring, the support rod and the top block can be conveniently reset for subsequent use.

[0012] In a specific embodiment, the cooling assembly comprises a water inlet pipe, a coil pipe and a water outlet pipe, the water inlet pipe is in communication with one end of the coil pipe, the water outlet pipe is in communication with the other end of the coil pipe, and the coil pipe is arranged in the mold body.

[0013] In the above implementation process, through the setting of the water inlet pipe, the coil pipe and the water outlet pipe, the product after injection molding can be conveniently cooled, demolding is facilitated, and sticking to the mold during ejection is avoided.

[0014] In a specific embodiment, the top plate is provided with a placing groove on one side, and the top block is arranged in the placing groove.

[0015] In the above implementation process, by arranging the placing groove on one side of the top plate, the connection of the top block and the top plate is facilitated, and limiting is also facilitated.

[0016] In a specific embodiment, the support frame and the mold body are provided with mounting plates on both sides, and the mounting plates are connected by screws.

[0017] In the implementation process, the support frame and the mold body can be conveniently disassembled through the installation plate and the screw rod.

[0018] Compared with the prior art, the beneficial effects of the present application are: the ejection assembly drives the top plate to move, facilitating the ejection of the molded product, after a certain distance, the ejection assembly drives the limiting block, the support rod and the top block to move, facilitating the secondary ejection, facilitating the product demolding, avoiding the deformation and warping phenomenon, improving the product quality, through the setting of the cooling assembly, the molded product can be conveniently cooled, facilitating demolding, avoiding sticking to the mold during ejection. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0020] Figure 1 is a sectional structure schematic diagram of a plastic product injection mold with secondary ejection structure provided by the embodiments of the present application;

[0021] Figure 2 is a structure schematic diagram of a plastic product injection mold with secondary ejection structure provided by the embodiments of the present application;

[0022] Figure 3 is a top view structure schematic diagram of a plastic product injection mold with secondary ejection structure provided by the embodiments of the present application;

[0023] Figure 4 is a sectional structure schematic diagram of a reset assembly provided by the embodiments of the present application.

[0024] In the figure: 10-ejection structure; 110-base; 120-support frame; 130-ejection assembly; 131-electric push rod; 132-lifting plate; 133-through hole; 134-first spring; 135-L-shaped sliding plate; 140-connection block; 150-reset assembly; 151-sliding rod; 152-second spring; 160-support rod; 170-limiting block; 180-top block; 190-installation plate; 20-mold body; 210-mold body; 220-top plate; 230-cooling assembly; 231-water inlet pipe; 232-coil pipe; 233-water outlet pipe; 240-placing groove. DETAILED DESCRIPTION

[0025] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application.

[0026] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Figure 1 The present application provides a plastic product injection mold with a secondary ejection structure, which comprises an ejection structure 10 and a mold body 20.

[0027] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Figure 1 、 Figure 2 、 Figure 3 and Figure 4 The ejection structure 10 comprises a base 110, a support frame 120, an ejection assembly 130, a connecting block 140, a reset assembly 150, a support rod 160, a limiting block 170 and a top block 180. The support frame 120 is arranged on one side of the base 110. The ejection assembly 130 is arranged in the support frame 120. The connecting block 140 is slidably connected with the support frame 120. The reset assembly 150 is arranged in the support frame 120. The connecting block 140 is connected with the reset assembly 150. One end of the support rod 160 is connected with the connecting block 140. The limiting block 170 is connected with the support rod 160. The top block 180 is arranged at one end of the limiting block 170.

[0028] In a specific arrangement, the ejection assembly 130 comprises an electric push rod 131, a lifting plate 132, a through hole 133, a first spring 134 and an L-shaped sliding plate 135. The electric push rod 131 is installed on one side of the base 110. The lifting plate 132 is connected with the movable end of the electric push rod 131. The lifting plate 132 is slidably connected with the support frame 120. The lifting plate 132 is provided with a plurality of through holes 133. The support rod 160 is arranged in the through hole 133. The first spring 134 is connected with the lifting plate 132 and the L-shaped sliding plate 135 at two ends respectively. The L-shaped sliding plate 135 is slidably connected with the support frame 120. The top plate 220 is connected with the L-shaped sliding plate 135. Through the arrangement of the electric push rod 131, the lifting plate 132, the through hole 133, the first spring 134 and the L-shaped sliding plate 135, the product after injection molding can be conveniently ejected.

[0029] In a specific arrangement, a sliding groove is arranged on the inner wall of the support frame 120. The L-shaped sliding plate 135 is slidably connected with the sliding groove. Through the slidable connection between the L-shaped sliding plate 135 and the sliding groove, the movement of the L-shaped sliding plate 135 can be conveniently limited.

[0030] In a specific arrangement, the reset assembly 150 comprises a sliding rod 151 and a second spring 152. The sliding rod 151 is arranged in the support frame 120. The connecting block 140 is slidably connected with the sliding rod 151. The second spring 152 is sleeved on the sliding rod 151. Through the arrangement of the sliding rod 151 and the second spring 152, the support rod 160 and the top block 180 can be conveniently reset for subsequent use.

[0031] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , the mold body 20 includes a mold body 210, a top plate 220 and a cooling assembly 230, the mold body 210 is connected with the support frame 120, the top plate 220 is connected with the mold body 210, the ejection assembly 130 is connected with the top plate 220, the top block 180 is arranged in the top plate 220, and the cooling assembly 230 is arranged in the mold body 210.

[0032] In a specific arrangement, the cooling assembly 230 includes a water inlet pipe 231, a coil pipe 232 and a water outlet pipe 233, the water inlet pipe 231 is communicated with one end of the coil pipe 232, and the water outlet pipe 233 is communicated with the other end of the coil pipe 232, and the coil pipe 232 is arranged in the mold body 210, wherein through the arrangement of the water inlet pipe 231, the coil pipe 232 and the water outlet pipe 233, the product after injection molding can be conveniently cooled, demolding is facilitated, and sticking to the mold during ejection is avoided.

[0033] In a specific arrangement, a placing groove 240 is formed on one side of the top plate 220, and the top block 180 is arranged in the placing groove 240, wherein through the arrangement of the placing groove 240 on one side of the top plate 220, the connection of the top block 180 and the top plate 220 is facilitated, and at the same time, the limiting is facilitated.

[0034] In a specific arrangement, mounting plates 190 are arranged on both sides of the support frame 120 and the mold body 210, and the mounting plates 190 are connected by screws, wherein through the arrangement of the mounting plates 190 and the screws, the support frame 120 and the mold body 210 can be conveniently disassembled and assembled.

[0035] The working principle of the plastic product injection mold with secondary ejection structure is as follows: when the plastic product injection mold with secondary ejection structure is used, cooling water enters the coil pipe 232 through the water inlet pipe 231 and is discharged through the water outlet pipe 233, which facilitates cooling of the product after injection molding, facilitates demolding, avoids sticking to the mold during ejection, drives the lifting plate 132 to move through the electric push rod 131, drives the top plate 220 to move through the L-shaped sliding plate 135, facilitates ejection of the product after injection molding, stops moving when the L-shaped sliding plate 135 moves to the top of the sliding groove, at this time, the lifting plate 132 extrudes the first spring 134, and drives the connecting block 140, the supporting rod 160 and the top block 180 to move through the limiting of the limiting block 170, facilitates secondary ejection, facilitates product demolding, avoids deformation and warping, improves product quality, and through the arrangement of the slide rod 151 and the second spring 152, the connecting block 140, the supporting rod 160 and the top block 180 can be conveniently reset for subsequent use.

[0036] It should be noted that the specific model of the electric push rod 131 needs to be selected and determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in the art, so it will not be described in detail.

[0037] The power supply of the electric push rod 131 and its principle are clear to those skilled in the art, and will not be described in detail here.

[0038] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A plastic article injection mold having a secondary ejection structure, characterized by, The ejection structure (10) comprises a base (110), a support frame (120), an ejection assembly (130), a connecting block (140), a reset assembly (150), a support rod (160), a limiting block (170) and a top block (180), the support frame (120) is arranged on one side of the base (110), the ejection assembly (130) is arranged in the support frame (120), the connecting block (140) is slidably connected with the support frame (120), the reset assembly (150) is arranged in the support frame (120), the connecting block (140) is connected with the reset assembly (150), one end of the support rod (160) is connected with the connecting block (140), the limiting block (170) is connected with the support rod (160), and the top block (180) is arranged at one end of the limiting block (170). The mold body (20) comprises a mold main body (210), a top plate (220) and a cooling assembly (230), the mold main body (210) is connected with the support frame (120), the top plate (220) is slidably connected with the mold main body (210), the ejection assembly (130) is connected with the top plate (220), the top block (180) is arranged in the top plate (220), and the cooling assembly (230) is arranged in the mold main body (210). The ejection assembly (130) comprises an electric push rod (131), a lifting plate (132), a through hole (133), a first spring (134) and an L-shaped sliding plate (135), the electric push rod (131) is mounted on one side of the base (110), the lifting plate (132) is connected with the movable end of the electric push rod (131), the lifting plate (132) is slidably connected with the support frame (120), the lifting plate (132) is provided with a plurality of through holes (133), the support rod (160) is arranged in the through hole (133), the first spring (134) is connected with the lifting plate (132) and the L-shaped sliding plate (135) at two ends respectively, the L-shaped sliding plate (135) is slidably connected with the support frame (120), and the top plate (220) is connected with the L-shaped sliding plate (135).

2. The injection mold for plastic products with secondary ejection structure according to claim 1, characterized in that, A sliding groove is formed in the inner wall of the support frame (120), and the L-shaped sliding plate (135) is slidably connected with the sliding groove.

3. The injection mold for plastic products with secondary ejection structure according to claim 2, characterized in that, The reset assembly (150) comprises a sliding rod (151) and a second spring (152), the sliding rod (151) is arranged in the support frame (120), the connecting block (140) is slidably connected with the sliding rod (151), and the second spring (152) is sleeved on the sliding rod (151).

4. The injection mold for plastic products with secondary ejection structure according to claim 1, characterized in that, ​ 5. The injection mold for plastic products with secondary ejection structure according to claim 1, characterized in that, The cooling assembly (230) comprises a water inlet pipe (231), a coil pipe (232) and a water outlet pipe (233), the water inlet pipe (231) is communicated with one end of the coil pipe (232), and the water outlet pipe (233) is communicated with the other end of the coil pipe (232), and the coil pipe (232) is arranged in the mold body (210).

6. The injection mold for plastic products with secondary ejection structure according to claim 1, characterized in that, One side of the top plate (220) is provided with a placing groove (240), and the top block (180) is arranged in the placing groove (240).

7. The injection mold for plastic products with secondary ejection structure according to claim 1, characterized in that, Both sides of the support frame (120) and the mold body (210) are provided with mounting plates (190), and the mounting plates (190) are connected through screw rods.

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