CN115674602A - Injection molding process of hot runner mold - Google Patents
Injection molding process of hot runner mold Download PDFInfo
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- CN115674602A CN115674602A CN202211497789.7A CN202211497789A CN115674602A CN 115674602 A CN115674602 A CN 115674602A CN 202211497789 A CN202211497789 A CN 202211497789A CN 115674602 A CN115674602 A CN 115674602A
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Abstract
The invention relates to the field of hot runner mold structures, in particular to a hot runner mold injection molding process, which comprises the following steps of S1: preparing a hot runner mold; s2: closing the upper die base and the lower die base, and injecting the raw materials into the main heat flow channel; s3: the raw material enters the product forming cavity through the sprue from the branch hot flow channel after being heated and insulated by the electric heating wire until the whole product forming cavity is filled with the raw material; s4: cooling the raw materials in the product forming cavity to form a product; s5: demolding the upper mold base and the lower mold base, and completely exposing all products in the lower mold core; s6: adsorbing the product on the lower die holder into the through hole of the clamping part by using a negative pressure fan; s7: and blowing the products in the through holes of the clamping parts down to a finished product box by using a negative pressure fan for collection. The material is got through the apparatus and is replaced the manual work and get the material, releases the manpower, reduces and lets artifical intensity of labour, once can take out all shaping products on the die holder, takes out efficiently, the condition that the workman scalded can not appear, improves whole production efficiency.
Description
Technical Field
The invention relates to the field of hot runner mold structures, in particular to an injection molding process of a hot runner mold.
Background
The hot runner system injects melted plastic into the cavity of the mould, and the mould is heated to carry out injection moulding, so that the hot runner system has the advantages of shortening the moulding period of a workpiece, improving the efficiency, saving plastic raw materials, reducing waste products, improving the product quality, eliminating the post-coarse process, and is beneficial to production automation and expanding the application range of the injection moulding process.
In the existing injection molding process of the hot runner mold, after a product is molded, the mold is usually taken out manually, and the manual mode has the disadvantages of high labor intensity, low taking efficiency, easy occurrence of the conditions of scalding of workers and the like, and reduction of the whole production efficiency.
Disclosure of Invention
The invention aims to solve the technical problem of providing an injection molding process of a hot runner mold, and solves the problems of high labor intensity, low taking-out efficiency and easy scalding of workers caused by manual product taking in the existing injection molding process of the hot runner mold.
In order to solve the technical problems, the technical scheme of the invention is as follows: the injection molding process of the hot runner mold has the innovation points that: the method comprises the following steps:
s1: preparing a hot runner mold;
s2: closing the upper die base and the lower die base, and injecting the raw materials into the main heat flow channel;
s3: the raw material enters the product forming cavity through the sprue from the branch hot flow channel after being heated and insulated by the electric heating wire until the whole product forming cavity is filled with the raw material;
s4: cooling the raw materials in the product forming cavity to form a product;
s5: demolding the upper die base and the lower die base, and completely exposing all products in the lower die core;
s6: moving the material taking mechanism to the vertical upper part of the lower die holder, and adsorbing the product on the lower die holder into the through hole of the clamping part by using a negative pressure fan;
s7: and moving the material taking mechanism to a position far away from the lower die base, and blowing the products in the through hole of the clamping part down to a finished product box by using a negative pressure fan for collection.
Further, the hot runner mold comprises an upper mold base, an upper accommodating cavity is formed in the bottom of the upper mold base and used for installing an upper mold core, a plurality of mold cores are installed at the bottom of the upper mold core, and the distance between every two adjacent mold cores is gradually increased from the middle of the upper mold core to the periphery of the upper mold core;
the top of the lower die base is provided with an upper accommodating cavity for installing a lower die core, the top of the lower die core is provided with a die cavity corresponding to the die core, and the upper die base and the lower die base are matched to form a product forming cavity between the die cavity and the die core;
the material taking mechanism is movable and comprises a clamping part and a suction and blowing part, the suction and blowing part is mounted at the top of the clamping part and comprises a suction and blowing box body, a cavity is arranged inside the suction and blowing box body, the top of the suction and blowing box body is provided with a communicating part, the bottom of the suction and blowing box body is provided with a plurality of communicating parts, the lower air port of the cavity is smaller than the size of the cavity, the lower air port corresponds to the cavity one to one, the clamping part comprises a clamping block, a plurality of through holes corresponding to the cavity one to one are formed in the clamping block, and the size of the through holes is not smaller than that of the cavity.
Furthermore, the material taking mechanism is arranged on one side of the upper portion of the lower die base, the bottom end of the clamping portion is slightly higher than the top end of the lower die base, the material taking mechanism is connected with the output end of a linear motor, and the linear motor drives the material taking mechanism to move in the horizontal direction.
Furthermore, the material taking mechanism further comprises a negative pressure fan, and the negative pressure fan is connected with the upper air port through an air pipe.
Furthermore, a main heat flow channel is further formed in the upper die core, a pouring gate is arranged in the middle of one side of the die core, branch heat flow channels communicated with the main heat flow channel and the pouring gate are arranged between the die core and the upper die core, and electric heating wires are arranged on the peripheries of the main heat flow channel and the branch heat flow channels.
Furthermore, the size of the through hole of the clamping part is gradually reduced from bottom to top.
The invention has the advantages that:
in the process, manual material taking is replaced by the aid of an instrument material taking device, manpower is released, labor intensity of workers is reduced, all molded products on the lower die base can be taken out at one time, taking-out efficiency is high, workers cannot be scalded, and overall production efficiency is improved.
Drawings
The invention is described in further detail below with reference to the drawings and the detailed description.
FIG. 1 is a sectional view of a part of the structure of the invention.
FIG. 2 is a sectional view of the present invention.
Fig. 3 is a sectional view of a part of the structure of the present invention.
Fig. 4 is a partial sectional view of the present invention.
Fig. 5 is a partial enlarged view of the present invention.
Detailed Description
An injection molding process of a hot runner mold comprises the following steps:
s1: preparing a hot runner mold;
s2: closing the upper die base and the lower die base, and injecting the raw materials into the main heat flow channel 11;
s3: the raw material enters the product forming cavity through the sprue from the branch heat flow channel 12 after being heated and insulated by the electric heating wire until the whole product forming cavity 5 is filled with the raw material;
s4: cooling the raw materials in the product forming cavity 5 to form a product 6;
s5: demolding the upper die base and the lower die base, and completely exposing all products 6 in the lower die core;
s6: moving the material taking mechanism 3 to the vertical upper part of the lower die holder, and adsorbing the product on the lower die holder into the through hole 35 of the clamping part by using a negative pressure fan;
s7: and moving the material taking mechanism 3 to a position far away from the lower die holder, and blowing the products in the through hole 35 of the clamping part down to the finished product box 7 by using a negative pressure fan for collection.
The hot runner mold shown in fig. 1 to 5 includes an upper mold base, a lower mold base, and a material taking mechanism 3.
The upper portion of upper die base has been seted up and has been held the chamber for install upper die benevolence 1, and install a plurality of cores 4 in the bottom of upper die benevolence 1, and the distance between two adjacent cores 4 progressively increases from upper die benevolence 1 middle part to upper die benevolence 1 week portion direction.
The upper mold core 1 is further provided with a main heat flow channel 11 inside, a pouring gate is arranged in the middle of one side of the mold core 4, a branch heat flow channel 12 communicating the main heat flow channel 11 with the pouring gate is arranged between the mold core 4 and the upper mold core 1, and electric heating wires are arranged on the peripheries of the main heat flow channel 11 and the branch heat flow channel 12.
The top of die holder has been seted up upper portion and has been held the chamber for installation lower mould benevolence 2, and set up the die cavity 5 corresponding with core 4 at the top of lower mould benevolence 2, with upper and lower die holder compound die for constitute the product molding chamber between die cavity 5 and the core 4.
The cavity 5 in this embodiment is a test tube, and the core 4 is a cylindrical structure having a circular arc surface at the bottom.
The material taking mechanism 3 is movably arranged and comprises a clamping part, an absorbing and blowing part and a negative pressure fan, and the absorbing and blowing part is arranged at the top of the clamping part.
Inhale the portion of blowing including inhaling and blowing box body 31, should inhale and blow box body 31 and be the rectangle structure, inhale and blow box body 31 inside and be equipped with a cavity 32, inhale and blow the upper portion wind gap 33 that box body 31 top was seted up intercommunication cavity 32, inhale and blow box body 31 bottom and set up the lower part wind gap 34 of a plurality of intercommunication cavities 32, the internal diameter of lower part wind gap 34 is less than the internal diameter of die cavity 5, and lower part wind gap 34 and 5 one-to-one of die cavity, negative-pressure air fan is connected through an tuber pipe with upper portion wind gap 33.
The clamping part comprises a clamping block 36, a plurality of through holes 35 which are in one-to-one correspondence with the cavities 5 are formed in the clamping block 36, the size of each through hole 35 is not smaller than that of each cavity 5, and the size of each through hole 35 of the clamping part decreases progressively from bottom to top.
The material taking mechanism 3 is arranged at one side of the upper part of the lower die base, the bottom end of the clamping part is slightly higher than the top end of the lower die base, the material taking mechanism 3 is connected with the output end of a linear motor, and the material taking mechanism 3 is driven to move in the horizontal direction through the linear motor.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, and such changes and modifications are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The injection molding process of the hot runner mold is characterized in that: the method comprises the following steps:
s1: preparing a hot runner mold;
s2: closing the upper die base and the lower die base, and injecting the raw materials into the main heat flow channel;
s3: the raw material enters the product forming cavity from the sprue by the heating and heat preservation self-branch hot flow channel of the electric heating wire until the whole product forming cavity is filled with the raw material;
s4: cooling the raw materials in the product forming cavity to form a product;
s5: demolding the upper mold base and the lower mold base, and completely exposing all products in the lower mold core;
s6: moving the material taking mechanism to the vertical upper part of the lower die holder, and adsorbing the product on the lower die holder into the through hole of the clamping part by using a negative pressure fan;
s7: and moving the material taking mechanism to a position far away from the lower die base, and blowing the products in the through hole of the clamping part down to a finished product box by using a negative pressure fan for collection.
2. The hot-runner mold injection molding process of claim 1, wherein: the hot runner mold comprises
The bottom of the upper die base is provided with an upper accommodating cavity for installing an upper die core, the bottom of the upper die core is provided with a plurality of die cores, and the distance between every two adjacent die cores is gradually increased from the middle of the upper die core to the periphery of the upper die core;
the top of the lower die base is provided with an upper accommodating cavity for installing a lower die core, the top of the lower die core is provided with a die cavity corresponding to the die core, and the upper die base and the lower die base are matched to form a product forming cavity between the die cavity and the die core;
the material taking mechanism is movable and comprises a clamping part and an absorbing and blowing part, the absorbing and blowing part is installed at the top of the clamping part, the absorbing and blowing part comprises an absorbing and blowing box body, a cavity is arranged inside the absorbing and blowing box body, the top of the absorbing and blowing box body is provided with a communication, the upper air port of the cavity is provided with a plurality of communication at the bottom of the absorbing and blowing box body, the lower air port is smaller than the size of the cavity, the lower air port is in one-to-one correspondence with the cavity, the clamping part comprises a clamping block, a plurality of through holes in one-to-one correspondence with the cavity are formed in the clamping block, and the size of each through hole is not smaller than that of the cavity.
3. The hot runner mold injection molding process of claim 2, wherein: the material taking mechanism is arranged at one side above the lower die seat, the bottom end of the clamping part is slightly higher than the top end of the lower die seat, the material taking mechanism is connected with the output end of a linear motor, and the linear motor drives the material taking mechanism to move in the horizontal direction.
4. The hot runner mold injection molding process of claim 2, wherein: the material taking mechanism further comprises a negative pressure fan, and the negative pressure fan is connected with the upper air port through an air pipe.
5. The hot runner mold injection molding process of claim 2, wherein: the mold comprises an upper mold core and a lower mold core, wherein a main heat flow channel is further formed in the upper mold core, a pouring gate is arranged in the middle of one side of the mold core, branch heat flow channels communicated with the main heat flow channel and the pouring gate are arranged between the mold core and the upper mold core, and electric heating wires are arranged on the peripheries of the main heat flow channel and the branch heat flow channels.
6. The hot runner mold injection molding process of claim 2, wherein: the size of the through hole of the clamping part decreases progressively from bottom to top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211497789.7A CN115674602A (en) | 2022-11-28 | 2022-11-28 | Injection molding process of hot runner mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211497789.7A CN115674602A (en) | 2022-11-28 | 2022-11-28 | Injection molding process of hot runner mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115674602A true CN115674602A (en) | 2023-02-03 |
Family
ID=85055774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211497789.7A Pending CN115674602A (en) | 2022-11-28 | 2022-11-28 | Injection molding process of hot runner mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115674602A (en) |
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2022
- 2022-11-28 CN CN202211497789.7A patent/CN115674602A/en active Pending
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