Molding cover body water gap hidden type injection mold

Abstract

The utility model belongs to the technical field of molds, and particularly relates to a hidden injection mold for a water gap of a formed cover body. Comprising a heating plate, a hot nozzle installed below the heating plate, a water gap communicated with the hot nozzle through a flow channel and a die pressing assembly allowing the hot nozzle to be inserted therein, the die pressing assembly is provided with a forming male part corresponding to the hot nozzle, and a cover body forming cavity is formed between the forming male part and the die pressing assembly. And the water gap is positioned at the bottom of the inner side of the cover body forming cavity. According to the mold, the hot nozzle is arranged above the forming cavity, and the water gap is formed in the bottom of the inner side of the cover body forming cavity, so that hiding of water gap material residues is achieved, the appearance integrity and attractiveness of a cover body are remarkably improved, and obvious traces or protrusions caused by exposure of the water gap in a traditional mold are avoided; and meanwhile, due to the built-in design of the water gap, the functional problem caused by dust accumulation or difficulty in cleaning of the exposed water gap in the use process of the product is reduced, the service life of the product is further prolonged, and the user experience is further improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of molds, and particularly relates to a cover body water port hidden type injection mold.

BACKGROUND

[0002] When a cover body product is produced by using a traditional injection mold, a water port is usually arranged on the outside of the cover body to simplify the runner design and the ejection process. However, this method causes the water port material to remain on the outer surface of the product after molding, forming obvious marks or protrusions, which seriously affects the appearance integrity and aesthetics of the cover body. In addition, the exposure of the water port may also cause inconvenience in function during use, such as easy dust accumulation or becoming a dead corner for cleaning, thereby affecting the service life and user experience of the product.

INVENTION CONTENTS

[0003] In order to solve the problem of the water port being arranged on the outside of the cover body to affect the appearance integrity in the production of the cover body by using a traditional mold, the application provides a cover body water port hidden type injection mold.

[0004] The application is implemented by the following technical scheme:

[0005] A cover body water port hidden type injection mold, comprising a heating plate, a hot nozzle arranged below the heating plate, a water port in communication with the hot nozzle through a runner, and a compression mold assembly for inserting the hot nozzle, wherein a cover body forming part is arranged on the compression mold assembly corresponding to the hot nozzle, a cover body forming cavity is formed between the cover body forming part and the compression mold assembly, and the water port is arranged at the inner bottom of the cover body forming cavity.

[0006] The cover body water port hidden type injection mold as described above, wherein a water conveying sleeve is arranged between the hot nozzle and the cover body forming part, an injection water cavity is formed between the water conveying sleeve and the cover body forming part, and a water channel is arranged on the compression mold assembly and in communication with the injection water cavity.

[0007] The cover body water port hidden type injection mold as described above, wherein the compression mold assembly comprises an upper mold assembly, a lower mold assembly, and a limiting mechanism for limiting the relative movement distance of the upper mold assembly and the lower mold assembly.

[0008] The cover body water port hidden type injection mold as described above, wherein the upper mold assembly comprises a first pressing plate and a second pressing plate, a pushing material plate is arranged on the first pressing plate and in abutment with the top of the cover body forming cavity, and the cover body forming part is connected with the second pressing plate.

[0009] The second pressing plate drives the forming male part and the forming cover body attached to the forming male part to move away from the first pressing plate when the second pressing plate is separated from the first pressing plate, and the top of the forming cover body is pushed by the pushing plate to peel off the forming male part.

[0010] The limiting mechanism comprises a first connecting block connected with the first pressing plate, a second connecting block connected with the lower die set, and a pull rod penetrating through the first connecting block and the second connecting block, and the pull rod is provided with a first limiting block and a second limiting block at both ends thereof and abutting against the first connecting block and the second connecting block.

[0011] The lower die set is further provided with a blowing assembly, and the blowing assembly comprises a gas nozzle penetrating through the cover body forming cavity, an air inlet provided on the outer side of the lower die set, and a main gas path channel and a branch gas path channel respectively communicating with the air inlet and the gas nozzle.

[0012] The gas nozzle is arranged in a staggered manner with the water port.

[0013] The forming cover body water port hidden injection mold comprises a plurality of the forming male parts, and a plurality of the cover body forming cavities are formed between each of the forming male parts and the pressing die assembly.

[0014] The water path channel communicates with the upper part of the water conveying sleeve, and the forming male part is provided with a waterproof rubber ring at the connection between the top and the bottom of the water conveying sleeve.

[0015] Compared with the prior art, the present application has the following advantages:

[0016] The forming cover body water port hidden injection mold of the present application sets the hot nozzle above the forming cavity and sets the water port at the inner bottom of the cover body forming cavity, thereby achieving the concealment of the water port material residue, significantly improving the appearance integrity and aesthetic degree of the cover body, and avoiding the obvious marks or protrusions caused by the exposed water port in the traditional mold. Meanwhile, the built-in design of the water port also reduces the functional problems caused by the exposed water port dust accumulation or difficult cleaning during use, further improving the service life and user experience of the product. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments description will be briefly introduced. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0018] Figure 1 is a three-dimensional view in the embodiments of the present application;

[0019] Figure 2 is a top view of Figure 1 ;

[0020] Figure 3 is a sectional view at A-A in Figure 2 ;

[0021] Figure 4 is an enlarged view at A in Figure 3 ;

[0022] Figure 5 is a sectional view at B-B in Figure 2 .

DETAILED DESCRIPTION

[0023] In order to make the technical problems and beneficial effects of the technical solutions solved by the present application more clear, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0024] Please refer to Figures 1 to 5 , a forming cover water port hidden injection mold, comprising a heating plate 1, a hot nozzle 2 installed below the heating plate 1, a water port 3 in communication with the hot nozzle 2 through a flow channel, and a mold assembly 4 for inserting the hot nozzle 2, a forming male part 5 is arranged on the mold assembly 4 corresponding to the hot nozzle 2, a cover forming cavity 6 is formed between the forming male part 5 and the mold assembly 4, and the water port 3 is located at the inner side bottom of the cover forming cavity 6.

[0025] The forming cover water port hidden injection mold of the present application sets the hot nozzle above the forming cavity, and sets the water port at the inner side bottom of the cover forming cavity, which realizes the concealment of the water port material residue, thereby significantly improving the appearance integrity and aesthetic degree of the cover, avoiding the obvious marks or protrusions caused by the exposed water port in the traditional mold; at the same time, the built-in design of the water port also reduces the functional problems caused by the exposed water port dust accumulation or difficult cleaning during use, further improving the service life and user experience of the product.

[0026] Further, as a preferred embodiment of the present scheme but not as a limitation, the hot nozzle 2 and the forming male part 5 are further provided with a water conveying sleeve 7, and a water injection cavity 8 is formed between the water conveying sleeve 7 and the forming male part 5, and the compression mold assembly 4 is provided with a water channel 9 communicating with the water injection cavity 8.

[0027] In the present embodiment, since the water gap is arranged on the inner side and the flow channel is lengthened, the temperature is not enough to cause the flow channel to be blocked, but the temperature is too high to cause the product to be difficult to cool. The water conveying sleeve 7 can effectively isolate the high temperature of the hot nozzle 2 and prevent it from being directly transmitted to the forming male part 5 and the cover forming cavity 6, thereby avoiding problems such as deterioration of the plastic material or poor forming caused by too high temperature. Secondly, by injecting cooling water into the water injection cavity 8 through the water channel 9, the forming male part 5 can be quickly cooled, the solidification process of the cover product is accelerated, and the production efficiency is improved. In addition, this cooling method also helps to reduce product deformation and size deviation, and improve product quality.

[0028] Further, as a preferred embodiment of the present scheme but not as a limitation, the compression mold assembly 4 includes an upper mold assembly 41, a lower mold assembly 42, and a limiting mechanism 43 for limiting the relative movement distance of the upper mold assembly 41 and the lower mold assembly 42.

[0029] In the present embodiment, the limiting mechanism 43 can accurately control the relative movement distance between the upper mold assembly 41 and the lower mold assembly 42, and ensure the coordinated movement of each part of the mold during mold opening and closing, thereby avoiding mold damage or product defects caused by improper movement distance. This design not only improves the service life of the mold, but also ensures the consistency and stability of the product. The working principle is that the limiting mechanism 43 limits the movement of the upper mold assembly 41 and the lower mold assembly 42 by mechanical or hydraulic means, and when the preset movement distance is reached, the limiting mechanism 43 will be automatically locked or provide a reverse force to prevent further movement.

[0030] Further, as a preferred embodiment of the present scheme but not as a limitation, the upper mold assembly 41 includes a first pressing plate 411 and a second pressing plate 412, the first pressing plate 411 is provided with a top abutting pushing plate 413 corresponding to the cover forming cavity 6, and the forming male part 5 is connected with the second pressing plate 412.

[0031] In this embodiment, the abutment of the pushing plate 413 and the top of the cover forming cavity 6 can effectively push the formed cover away from the forming public part 5 when the mold is opened, reducing the phenomenon of product sticking to the mold and improving the production efficiency. Secondly, the forming public part 5 is connected with the second pressing plate 412, so that the second pressing plate 412 can drive the forming public part 5 and the formed cover on it away from the first pressing plate 411 during the mold opening process, providing enough space for the pushing plate 413 to perform the pushing operation, ensuring the smooth demolding of the product. This structure also helps to reduce the damage to the formed cover and improve the product quality. The working principle is that when the mold is opened, the first pressing plate 411 and the second pressing plate 412 are first separated from the lower mold set 42, driving the forming public part 5 and the formed cover to move upwards, and then the first pressing plate is limited, the pushing plate 413 pushes the top of the formed cover, so that it is completely separated from the forming public part 5.

[0032] Further, as a preferred embodiment of the present scheme but not limited, when the second pressing plate 412 is separated from the first pressing plate 411, the second pressing plate 412 drives the forming public part 5 and the formed cover on the forming public part 5 away from the first pressing plate 411, and the pushing plate 413 pushes the top of the formed cover to separate it from the forming public part 5.

[0033] Further, as a preferred embodiment of the present scheme but not limited, the limiting mechanism 43 includes a first connecting block 431 connected with the first pressing plate 411, a second connecting block 432 connected with the lower mold set 42, and a pull rod 433 passing through the first connecting block 431 and the second connecting block 432, and the pull rod 433 has a first limiting block 434 and a second limiting block 435 at both ends thereof, which abut against the first connecting block 431 and the second connecting block 432, respectively.

[0034] In this embodiment, the stability and consistency of the mold during the opening and closing of the mold are ensured, avoiding damage to the mold or product defects caused by improper movement distance, and improving the service life of the mold and the qualification rate of the product. Secondly, through the cooperation of the pull rod 433 and the limiting block, the movement distance can be easily adjusted and set, adapting to the production needs of different products, and enhancing the versatility and flexibility of the mold.

[0035] Further, as a preferred embodiment of the present scheme but not limited, the lower mold set 42 is further provided with a blowing assembly 10, the blowing assembly 10 includes a gas nozzle 101 passing through the cover forming cavity 6, an air inlet 102 provided on the outside of the lower mold set 42, and a main gas path 103 and a branch gas path 104 respectively communicating with the air inlet 102 and the gas nozzle 101.

[0036] In this embodiment, by blowing compressed air into the cover body forming cavity 6 through the air nozzle 101, the friction between the product and the forming cavity can be effectively reduced, helping the product to be demolded more smoothly, reducing the probability of occurrence of the sticking phenomenon, and improving the production efficiency. Secondly, the blowing assembly 10 also helps to remove the residual plastic and impurities in the forming cavity, keeps the mold clean, prolongs the service life of the mold, and ensures the consistency and quality stability of the product. Its working principle is that the compressed air enters from the air inlet 102, is distributed to each air nozzle 101 through the main air path channel 103 and the branch air path channel 104, and then is blown into the cover body forming cavity 6 from the air nozzle 101, forming an air cushion effect, reducing the contact area and friction between the product and the forming cavity.

[0037] Further, as a preferred embodiment of the present scheme but not limited, the air nozzle 101 is arranged in a staggered manner with the water gap 3.

[0038] In this embodiment, the air flow blown by the air nozzle 101 does not directly impact the water gap 3 area, avoiding possible disturbance or uneven cooling of the plastic material at the water gap 3, thereby ensuring the stability of the injection molding process and the consistency of the product quality. Secondly, this design also helps to reduce the blowing or deformation of the plastic at the water gap 3 by the air flow, reducing the incidence of product defects such as burrs or unevenness at the water gap 3. The staggered arrangement makes the air flow path of the air nozzle 101 deviate from the plastic flow channel of the water gap 3, and the air flow mainly acts on other areas of the product to assist demolding, while having less effect on the water gap 3.

[0039] Further, as a preferred embodiment of the present scheme but not limited, a plurality of said forming male elements 5 are included, and a plurality of said cover body forming cavities 6 are formed between each said forming male element 5 and said compression mold assembly 4.

[0040] In this embodiment, through the multi-cavity design, multiple cover body products can be produced simultaneously in the same mold cycle, greatly improving the production efficiency and capacity, and reducing the production cost per unit product. Multiple forming male elements 5 and compression mold assemblies 4 are accurately matched to form multiple isolated cover body forming cavities 6, and each cavity can independently perform injection molding, cooling, demolding and other process steps without interference.

[0041] Further, as a preferred embodiment of the present scheme but not limited, the water path channel 9 is connected to the upper part of the water conveying sleeve 7, and the forming male element 5 is provided with a waterproof rubber ring 11 at the connection between the top and the bottom of the water conveying sleeve 7.

[0042] In this embodiment, by injecting cooling water into the water jacket 7 through the water channel 9, efficient cooling of the shaped public parts 5 can be achieved, accelerating the curing process of the cover product and improving production efficiency. At the same time, the setting of the waterproof rubber ring 11 effectively prevents the leakage of cooling water, ensuring the dryness and cleanliness of the inside of the mold. The waterproof rubber ring 11 prevents the leakage of cooling water at the connection between the shaped public parts 5 and the water jacket 7 by its good sealing performance, avoiding the corrosion of the mold or product defects caused by water leakage.

[0043] The working principle of this embodiment is as follows:

[0044] The water port hidden injection mold for forming a cover body of the present application realizes the concealment of water port residue by setting the hot nozzle above the forming cavity and setting the water port at the inside bottom of the cover body forming cavity, thereby significantly improving the appearance integrity and aesthetics of the cover body, avoiding the obvious marks or protrusions caused by the exposure of the water port in traditional molds. At the same time, the built-in design of the water port also reduces the functional problems caused by the accumulation of dust or difficulty in cleaning the exposed water port during use, further improving the service life and user experience of the product.

[0045] The above is an implementation provided in combination with specific content, and it is not intended that the specific implementation of the present application is limited to these descriptions. Any approximation to the method structure of the present application, or any technical deduction or replacement made on the basis of the concept of the present application, should be considered as the protection scope of the present application.

Claims

1. A shaped cover port-concealing injection mold, characterized by, The utility model provides a cover body forming device, which comprises a heating plate (1), a hot nozzle (2) mounted below the heating plate (1), a water nozzle (3) in communication with the hot nozzle (2) through a flow channel, and a die assembly (4) into which the hot nozzle (2) is inserted, wherein a shaped male part (5) is arranged on the die assembly (4) corresponding to the hot nozzle (2), a cover body forming cavity (6) is formed between the shaped male part (5) and the die assembly (4), and the water nozzle (3) is located at the inner side bottom of the cover body forming cavity (6).

2. The shaped cover water port hidden injection mold of claim 1, wherein, A water conveying sleeve (7) is further arranged between the hot nozzle (2) and the shaped male part (5), a water injection cavity (8) is formed between the water conveying sleeve (7) and the shaped male part (5), and a water channel (9) in communication with the water injection cavity (8) is arranged on the die assembly (4).

3. The shaped cover water port hidden injection mold of claim 1, wherein, The die assembly (4) comprises an upper die assembly (41), a lower die assembly (42), and a limiting mechanism (43) for limiting the relative movement distance of the upper die assembly (41) and the lower die assembly (42).

4. The shaped cover water port hidden injection mold of claim 3, wherein, The upper die assembly (41) comprises a first pressing plate (411) and a second pressing plate (412), the first pressing plate (411) is provided with a pushing material plate (413) abutting against the top of the cover body forming cavity (6), and the shaped male part (5) is connected with the second pressing plate (412).

5. The shaped cover water port hidden injection mold of claim 4, wherein, When the second pressing plate (412) is separated from the first pressing plate (411), the second pressing plate (412) drives the shaped male part (5) and a shaped cover body adhered to the shaped male part (5) to move away from the first pressing plate (411), and at the same time, the pushing material plate (413) pushes the top of the shaped cover body to make it peel off the shaped male part (5).

6. The shaped cover water port hidden injection mold of claim 4, wherein, The limiting mechanism (43) comprises a first connecting block (431) connected with the first pressing plate (411), a second connecting block (432) connected with the lower die assembly (42), and a pull rod (433) penetrating through the first connecting block (431) and the second connecting block (432), wherein the pull rod (433) is provided with a first limiting block (434) and a second limiting block (435) abutting against the first connecting block (431) and the second connecting block (432) at both ends, respectively.

7. The shaped cover water port hidden injection mold of claim 3, wherein, The lower die assembly (42) is further provided with a blowing assembly (10), the blowing assembly (10) comprises a gas nozzle (101) penetrating through the cover body forming cavity (6), an air inlet (102) arranged on the outer side of the lower die assembly (42), and a main gas channel (103) and a branch gas channel (104) in communication with the air inlet (102) and the gas nozzle (101), respectively.

8. The shaped cover water port hidden injection mold of claim 7, wherein, The gas nozzle (101) and the water nozzle (3) are arranged in a staggered manner.

9. The shaped cover water port hidden injection mold of claim 1, wherein, The utility model provides a cover body forming device, which comprises a plurality of shaped male parts (5) and a plurality of cover body forming cavities (6) formed between each shaped male part (5) and the die assembly (4).

10. The shaped cover water port hidden injection mold of claim 2, wherein, The water channel (9) is in communication with the upper part of the water conveying sleeve (7), and the shaped male part (5) is provided with a waterproof rubber ring (11) at the connection between the top and the bottom of the water conveying sleeve (7).

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