CN111791430A - Gas-tight injection mold forming structure - Google Patents
Gas-tight injection mold forming structure Download PDFInfo
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- CN111791430A CN111791430A CN202010541749.2A CN202010541749A CN111791430A CN 111791430 A CN111791430 A CN 111791430A CN 202010541749 A CN202010541749 A CN 202010541749A CN 111791430 A CN111791430 A CN 111791430A
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- rectangular
- gas
- mold
- groove
- scraper
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/1703—Introducing an auxiliary fluid into the mould
- B29C45/1704—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
- B29C45/0055—Shaping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/1753—Cleaning or purging, e.g. of the injection unit
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2602—Mould construction elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/14—Sealings between relatively-stationary surfaces by means of granular or plastic material, or fluid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/40—Sealings between relatively-moving surfaces by means of fluid
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a gas-sealed injection mold forming structure which comprises an upper mold and a lower mold, wherein a first rectangular groove is formed in the upper end of the lower mold, a second rectangular groove is formed in the lower portion of the upper mold, a first rectangular frame is connected in the second rectangular groove in a sliding mode, first frosting surfaces are arranged on the outer wall of the first rectangular frame, second frosting surfaces are arranged on the inner wall of the first rectangular groove, two thread sleeves are fixedly connected to the upper end of the first rectangular frame, adjusting screws are connected in the two thread sleeves in a threaded mode, the two adjusting screws penetrate through the upper mold and are connected with the upper mold in a rotating mode, and a transmission mechanism is arranged between the two adjusting screws. The invention has reasonable structure, can not only ensure good sealing performance when the upper die and the lower die are assembled, but also play a role in guiding and buffering the upper die, reduce the impact force when the upper die and the lower die are assembled, reduce the vibration of the upper die and the lower die and realize the protection of the upper die and the lower die.
Description
Technical Field
The invention relates to the technical field of injection molds, in particular to a gas-sealed injection mold forming structure.
Background
Injection molding is a method for producing and molding industrial products. The products are generally produced by rubber injection molding and plastic injection molding. The injection molding can also be divided into injection molding and die casting; an injection molding machine (an injection machine or an injection molding machine for short) is a main molding device for making thermoplastic plastics or thermosetting materials into plastic products with various shapes by using a plastic molding die, and the injection molding is realized by the injection molding machine and the die.
The injection molding comprises gas-assisted injection molding, and the principle and application of the gas-assisted injection molding are two-part injection molding by plastic melt injection and gas (generally adopting nitrogen) injection and application thereof.
The gas-assisted injection molding has the advantages of low injection pressure, small warping deformation of products, good surface quality, easiness in processing products with large wall thickness difference and the like, and the development is rapid in recent years. It has been used in developed countries for commercial production of plastic articles for almost 20 years. Gas-assisted injection molding consists of two parts, plastic melt injection and gas (typically nitrogen) injection. Gas-assisted injection molding has many more process parameters to determine and control than conventional injection molding processes, and thus has special requirements for product design, mold design, and control of the molding process. The gas-assisted injection molding process begins with the injection of a resin starve into the mold cavity and then introduces high-pressure compressed nitrogen into the molten mass, with the gas flowing in the direction of least resistance to the low and high pressure regions of the article. As the gas flows in the product, it hollows out a thick-walled section by displacing the molten mass. This displaced material fills the remainder of the article. When the filling process is completed, the gas continues to provide the holding pressure to minimize shrinkage or warpage of the shot.
Its advantages mainly include:
1) the problem of surface sink marks of the workpiece is solved, and the surface quality of the workpiece can be greatly improved;
2) the internal stress of the product is reduced, the strength and the dimensional stability of the product are improved, and the warping deformation is reduced;
3) the raw material is saved, and the maximum can reach 40-50%;
4) the product and the mold design are simplified, and the mold processing difficulty is reduced;
5) the pressure of the die cavity is reduced, the die locking force is reduced, and the service life of the die is prolonged;
6) the cooling is accelerated and the production cycle is shortened.
For surface gas-assisted injection molding, gas sealing is a key technology among them; because high-pressure gas acts between the upper die and the lower die, if the gas pressure maintaining is ensured not to lose efficacy, the sealing performance of the upper die and the lower die during die assembly is very important, and therefore the gas-sealed injection mold forming structure is designed to solve the problems.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a gas-sealed injection mold forming structure which can ensure good sealing performance when an upper mold and a lower mold are combined, can play a role in guiding and buffering the upper mold, reduce the impact force when the upper mold and the lower mold are combined, reduce the vibration of the upper mold and the lower mold and realize the protection of the upper mold and the lower mold.
In order to achieve the purpose, the invention adopts the following technical scheme:
a gas-sealed injection mold forming structure comprises an upper mold and a lower mold, wherein a first rectangular groove is formed in the upper end of the lower mold, a second rectangular groove is formed in the lower portion of the upper mold, a first rectangular frame is connected in the second rectangular groove in a sliding mode, a first frosting surface is arranged on the outer wall of the first rectangular frame, a second frosting surface is arranged on the inner wall of the first rectangular groove, two thread sleeves are fixedly connected to the upper end of the first rectangular frame, adjusting screw rods are connected in the two thread sleeves in a threaded mode, the two adjusting screw rods penetrate through the upper mold and are connected with the upper mold in a rotating mode, a transmission mechanism is arranged between the two adjusting screw rods, two opposite rectangular sliding grooves are formed in the inner wall of the first rectangular groove, four first scraping plates and four second scraping plates are connected in the two rectangular sliding grooves in a sliding mode, and a second rectangular frame is connected in the first rectangular groove in a sliding, run through on the second rectangle frame and be equipped with a plurality of pores, a plurality of reset spring of fixedly connected with between the interior bottom of second rectangle frame and first rectangular channel, first rectangular channel intussuseption is filled with hydraulic oil, hydraulic oil is located the below of second rectangle frame.
Preferably, the bottom of the first rectangular frame is provided with an arc surface, and the first rectangular frame is matched with the first rectangular groove.
Preferably, the transmission mechanism comprises gears sleeved outside the two adjusting screws, the two gears are respectively and fixedly connected with the adjusting screws on the same side, and the two gears are connected through a gear rotating belt.
Preferably, a hand wheel is fixedly connected to the upper end of one of the adjusting screws, and a rubber protective sleeve is sleeved outside the hand wheel.
Preferably, the upper die is provided with a shaft sleeve in a penetrating manner, the shaft sleeve is connected with the upper die in a rotating manner, and the adjusting screw penetrates through the shaft sleeve and is fixedly connected with the shaft sleeve.
Preferably, a sliding plate is connected in the rectangular sliding groove in a sliding manner, an elastic spring is fixedly connected between the sliding plate and the rectangular sliding groove, and the first scraper and the second scraper are fixedly connected with the sliding plate.
Preferably, the upper ends of the opposite ends of the first scraper and the second scraper are provided with cambered surfaces.
Preferably, two adjacent first scrapers and two adjacent second scrapers are abutted and connected in a sliding manner.
Compared with the prior art, the invention has the beneficial effects that:
1. through the cooperation of first rectangular channel and first rectangle frame, can realize the direction to last mould, and then can guarantee to go up the stable compound die of mould and lower mould.
2. When first rectangle frame and second rectangle frame offset, first rectangle frame can extrude second rectangle frame downstream, reset spring is compressed, hydraulic oil passes through the pore rebound this moment, owing to under pore resistance and reset spring's effect, can hinder the flow of hydraulic oil, and then can slow down second rectangle frame downstream, and then realize the buffering to first rectangle frame and last mould, the impact force when mould and lower mould contact is gone up in the reduction, thereby the realization is to the protection of last mould and lower mould.
3. The outer wall of the first rectangular frame is provided with the first frosting surface, the inner wall of the first rectangular groove is provided with the second frosting surface, and when the first rectangular frame extends into the first rectangular groove, a joint seam can be formed between the first frosting surface and the second frosting surface at the moment, hydraulic oil can be in the joint seam to form a stable hydraulic oil film, so that the first rectangular frame and the first rectangular groove can be connected in a sealing manner; thereby realize the leakproofness when going up mould and lower mould compound die, improve the quality of moulding plastics production.
4. Because first scraper blade and second scraper blade offset with the inner wall of first rectangle frame always, consequently can scrape the hydraulic oil on the first rectangle frame through first scraper blade and second scraper blade, prevent that it from falling on last mould, also can reduce the waste of hydraulic oil, resources are saved.
5. The adjusting screw rod rotates to realize the separation of the adjusting screw rod and the threaded sleeve, and the first rectangular frame can be detached, replaced or overhauled; the installation can be carried out reversely; along with the use and the interpolation of hydraulic oil, the volume of hydraulic oil increases or reduces, can adjust the degree of depth that the rectangle frame stretched into first rectangular channel, prevents that hydraulic oil from spilling over or the volume is few, demand when can satisfying practical use, the practicality is better.
In conclusion, the invention has reasonable structure, can not only ensure good sealing performance when the upper die and the lower die are combined, but also play a role in guiding and buffering the upper die, reduce the impact force when the upper die and the lower die are combined, reduce the vibration of the upper die and the lower die and realize the protection of the upper die and the lower die.
Drawings
FIG. 1 is a cross-sectional view of a gas-tight injection mold molding structure according to the present invention;
FIG. 2 is a top view of a lower mold of a gas-tight injection mold structure according to the present invention;
FIG. 3 is a bottom view of an upper mold of a gas-tight injection mold forming structure according to the present invention;
fig. 4 is an enlarged view of a structure a in fig. 1.
In the figure: 1 upper die, 2 lower die, 3 first rectangular groove, 4 second rectangular groove, 5 first rectangular frame, 6 arc surface, 7 thread bush, 8 adjusting screw, 9 shaft sleeve, 10 gear, 11 gear rotating belt, 12 hand wheel, 13 rectangular sliding groove, 14 first scraper, 15 second scraper, 16 arc surface, 17 sliding plate, 18 elastic spring, 19 hydraulic oil, 20 reset spring, 21 second rectangular frame, 22 pore, 23 first frosting surface, 24 second frosting surface.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 1-4, a gas-tight injection mold forming structure, including last mould 1 and lower mould 2, the upper end of lower mould 2 is equipped with first rectangular channel 3, the lower part of going up mould 1 is equipped with second rectangular channel 4, sliding connection has first rectangle frame 5 in the second rectangular channel 4, the bottom of first rectangle frame 5 is provided with arc surface 6, and first rectangle frame 5 and first rectangular channel 3 phase-match, arc surface 6 and cambered surface 16 phase-match, when then first rectangle frame 5 inserts first rectangular channel 3, arc surface 6 is relative with two cambered surfaces 16, first rectangle frame 5 continues the downstream, then arc surface 6 can produce outside pressure to arc surface 16, thereby realize that first scraper blade 14 and second scraper blade 15 move mutually away from each other, thereby can install first rectangle frame 5 in first rectangular channel 3.
The outer wall of first rectangle frame 5 all is equipped with first frosting 23, and the inner wall of first rectangular channel 3 is equipped with second frosting 24, and when first rectangle frame 5 extended to in the first rectangular channel 3, the welt can appear between first frosting 23 and the second frosting 24 this moment, and then during hydraulic oil 19 can have the welt, form stable hydraulic oil film to sealing connection between first rectangle frame 5 and the first rectangular channel 3 can be realized.
Two thread bushings 7 of upper end fixedly connected with of first rectangle frame 5, equal threaded connection has adjusting screw 8 in two thread bushings 7, and two adjusting screw 8 all run through last mould 1 and rotate rather than being connected, go up and run through being equipped with rather than the axle sleeve 9 of being connected of rotating on the mould 1, and adjusting screw 8 runs through axle sleeve 9 and rather than fixed connection, conveniently realizes adjusting screw 8 and goes up to rotate between the mould 1 through axle sleeve 9 and be connected.
A transmission mechanism is arranged between the two adjusting screws 8 and comprises gears 10 sleeved outside the two adjusting screws 8, the two gears 10 are fixedly connected with the adjusting screws 8 on the same side respectively, the two gears 10 are connected through a gear rotating belt 11, the two adjusting screws 8 can rotate simultaneously by arranging the two gears 10 and the gear driving belt 11, and the gears 10 and the gear driving belt 11 are meshed and connected, so that the gears 10 and the gear driving belt 11 cannot rotate relatively; the upper end of one of the adjusting screw 8 is fixedly connected with a hand wheel 12, the adjusting screw 8 is convenient to rotate through the hand wheel 12, a rubber protective sleeve is sleeved outside the hand wheel 12, and workers can conveniently rotate the hand wheel 12 through the rubber protective sleeve.
The inner wall of first rectangular channel 3 is equipped with two relative rectangle sliding tray 13, equal sliding connection has four first scraper blades 14 and four second scraper blades 15 in two rectangle sliding tray 13, and two adjacent first scraper blades 14, two adjacent second scraper blades 15 all offset and sliding connection, and four first scraper blades 14 form the rectangle frame dress promptly, and four second scraper blades 15 form the rectangle frame dress, can effectively strike off hydraulic oil 19 on the outer wall of first rectangle frame 5.
A sliding plate 17 is connected in the rectangular sliding groove 13 in a sliding mode, an elastic spring 18 is fixedly connected between the sliding plate 17 and the sliding groove 13, and the first scraper 14 and the second scraper 15 are fixedly connected with the sliding plate 17; the upper ends of the opposite ends of the first scraper blade 14 and the second scraper blade 15 are respectively provided with an arc surface 16, and the first scraper blade 14 and the second scraper blade 15 can move back to back through the matching of the arc surfaces 16 and the arc surfaces 6.
A second rectangular frame 21 is connected in the first rectangular groove 3 in a sliding mode, a plurality of fine holes 22 are formed in the second rectangular frame 21 in a penetrating mode, when the second rectangular frame 21 moves downwards, hydraulic oil 19 can flow upwards through the fine holes 22, due to resistance of the fine holes 22, the hydraulic oil 19 can be blocked, the second rectangular frame 21 can be slowed down to move downwards, and therefore the first rectangular frame 5 and the upper die 1 can be buffered; a plurality of return springs 20 are fixedly connected between the second rectangular frame 21 and the inner bottom of the first rectangular groove 3, and the return springs 20 are used for returning the second rectangular frame 21 which is not limited; the first rectangular groove 3 is filled with hydraulic oil 19, and the hydraulic oil 19 is located below the second rectangular frame 21.
When the injection molding machine is used for injection molding, the upper die 1 moves downwards under the action of a power mechanism (a driving motor or a hydraulic cylinder and the like, which is the prior art), when the first rectangular frame 5 moves into the first rectangular groove 3, the arc surface 6 is opposite to the two arc surfaces 16, the first rectangular frame 5 continues to move downwards, the arc surface 6 can generate outward pressure on the arc surface 16, so that the first scraper 14 and the second scraper 15 move back and forth, the first scraper 14 and the second scraper 15 drive the sliding plate 17 to slide towards the rectangular sliding groove 13, and the elastic spring 18 is compressed, so that the first rectangular frame 5 can be installed in the first rectangular groove 3; through the cooperation of first rectangular channel 3 and first rectangle frame 5, can realize the direction to last mould 1, and then can guarantee to go up the stable compound die of mould 1 and lower mould 2.
When first rectangle frame 5 offsets with second rectangle frame 21, first rectangle frame 5 can extrude second rectangle frame 21 and move down, reset spring 20 is compressed, hydraulic oil 19 passes through pore 22 and upwards flows this moment, owing to under pore 22's resistance and reset spring 20's effect, can hinder hydraulic oil 19's flow, and then can slow down second rectangle frame 21 and move down, and then realize the buffering to first rectangle frame 5 and last mould 1, reduce the impact force when going up mould 1 and lower mould 2 contact, thereby realize the protection to last mould 1 and lower mould 2.
The hydraulic oil 19 flows upwards through the fine holes 22, and because the outer walls of the first rectangular frames 5 are provided with the first frosted surfaces 23, the inner walls of the first rectangular grooves 3 are provided with the second frosted surfaces 24, and when the first rectangular frames 5 extend into the first rectangular grooves 3, a joint can be formed between the first frosted surfaces 23 and the second frosted surfaces 24, the hydraulic oil 19 can be in the joint to form a stable hydraulic oil film, so that the first rectangular frames 5 and the first rectangular grooves 3 can be in sealed connection; therefore, the sealing performance of the upper die 1 and the lower die 2 during die assembly is realized, and the quality of injection molding production is improved.
When the upper die 1 moves upwards to reset, the first rectangular frame 5 is not limited to the second rectangular frame 21 any more, the second rectangular frame 21 can reset under the action of the reset spring 20, and the first scraper 14 and the second scraper 15 always abut against the inner wall of the first rectangular frame 5, so that the hydraulic oil 19 on the first rectangular frame 15 can be scraped off through the first scraper 14 and the second scraper 15, the hydraulic oil is prevented from falling on the upper die 1, the waste of the hydraulic oil 19 can be reduced, and resources are saved.
Along with the use of the first rectangular frame 5, the first scraper 14 and the second scraper 15 rub against each other, so that the first rectangular frame 5 needs to be replaced or disassembled for maintenance, a worker can manually rotate the hand wheel 12, and under the matching of the gear 10 and the gear transmission belt 11, the two adjusting screws 8 can simultaneously rotate, and because the first rectangular frame 5 cannot rotate in the second rectangular groove 4, the adjusting screws 8 can rotate to separate from the threaded sleeves 7, so that the first rectangular frame 5 can be detached, replaced or maintained; the installation can be carried out reversely; along with the use and the addition of hydraulic oil 19, the volume of hydraulic oil 19 increases or reduces, can adjust the degree of depth that rectangle frame 5 stretched into in first rectangular channel 3, prevents that hydraulic oil 19 from overflowing or the volume is few, demand when can satisfying the in-service use, and the practicality is better.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. The gas-sealed injection mold forming structure comprises an upper mold (1) and a lower mold (2), and is characterized in that a first rectangular groove (3) is arranged at the upper end of the lower mold (2), a second rectangular groove (4) is arranged at the lower part of the upper mold (1), a first rectangular frame (5) is connected in the second rectangular groove (4) in a sliding manner, a first frosting surface (23) is arranged on the outer wall of the first rectangular frame (5), a second frosting surface (24) is arranged on the inner wall of the first rectangular groove (3), two thread sleeves (7) are fixedly connected at the upper end of the first rectangular frame (5), adjusting screw rods (8) are connected in the two thread sleeves (7) in a threaded manner, the two adjusting screw rods (8) penetrate through the upper mold (1) and are connected with the upper mold in a rotating manner, a transmission mechanism is arranged between the two adjusting screw rods (8), two opposite rectangular sliding grooves (13) are arranged on the inner wall of the first rectangular groove (3), two equal sliding connection has four first scraper blades (14) and four second scraper blades (15) in rectangle sliding tray (13), sliding connection has second rectangle frame (21) in first rectangle groove (3), it is equipped with a plurality of pores (22) to run through on second rectangle frame (21), a plurality of reset spring (20) of fixedly connected with between the interior bottom of second rectangle frame (21) and first rectangle groove (3), first rectangle groove (3) intussuseption is filled with hydraulic oil (19), hydraulic oil (19) are located the below of second rectangle frame (21).
2. A gas-tight injection mould forming structure according to claim 1, characterised in that the bottom of the first rectangular frame (5) is provided with a circular arc surface (6), and the first rectangular frame (5) matches with the first rectangular groove (3).
3. The gas-tight injection mold molding structure according to claim 2, wherein the transmission mechanism comprises gears (10) sleeved outside the two adjusting screws (8), the two gears (10) are respectively and fixedly connected with the adjusting screws (8) at the same side, and the two gears (10) are connected through a gear rotating belt (11).
4. A gas-tight injection mould forming structure according to claim 3, characterised in that a hand wheel (12) is fixedly connected to the upper end of one of the adjusting screws (8), and a rubber protective sleeve is sleeved on the outer portion of the hand wheel (12).
5. A gas-tight injection mould forming structure as claimed in claim 4, characterized in that the upper mould (1) is provided with a bushing (9) rotatably connected therewith, and the adjusting screw (8) is fixedly connected with the bushing (9) and penetrates the bushing.
6. A gas-tight injection mould forming structure according to claim 5, characterized in that a sliding plate (17) is slidably connected in the rectangular sliding groove (13), an elastic spring (18) is fixedly connected between the sliding plate (17) and the rectangular sliding groove (13), the first scraper (14) and the second scraper (15) are fixedly connected with the sliding plate (17), and the upper ends of the opposite ends of the first scraper (14) and the second scraper (15) are provided with cambered surfaces (16).
7. A gas-tight injection mould forming structure according to claim 6, characterised in that two adjacent first scrapers (14) and two adjacent second scrapers (15) are in abutting and sliding connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010541749.2A CN111791430A (en) | 2020-06-15 | 2020-06-15 | Gas-tight injection mold forming structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010541749.2A CN111791430A (en) | 2020-06-15 | 2020-06-15 | Gas-tight injection mold forming structure |
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| Publication Number | Publication Date |
|---|---|
| CN111791430A true CN111791430A (en) | 2020-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010541749.2A Pending CN111791430A (en) | 2020-06-15 | 2020-06-15 | Gas-tight injection mold forming structure |
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| CN (1) | CN111791430A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113084125A (en) * | 2021-03-30 | 2021-07-09 | 广东启新汽车零部件有限公司 | Die casting die buffer gear |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208197446U (en) * | 2018-05-21 | 2018-12-07 | 钱程霞 | A kind of injection mold of adjustable tightness |
| CN209938021U (en) * | 2018-12-12 | 2020-01-14 | 深圳市海中辉新材料科技有限公司 | Movable printing ink scraper blade |
| CN110948792A (en) * | 2019-11-20 | 2020-04-03 | 吴中区甪直磊鑫模具厂 | Injection mold capable of being combined and adjusted |
-
2020
- 2020-06-15 CN CN202010541749.2A patent/CN111791430A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208197446U (en) * | 2018-05-21 | 2018-12-07 | 钱程霞 | A kind of injection mold of adjustable tightness |
| CN209938021U (en) * | 2018-12-12 | 2020-01-14 | 深圳市海中辉新材料科技有限公司 | Movable printing ink scraper blade |
| CN110948792A (en) * | 2019-11-20 | 2020-04-03 | 吴中区甪直磊鑫模具厂 | Injection mold capable of being combined and adjusted |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113084125A (en) * | 2021-03-30 | 2021-07-09 | 广东启新汽车零部件有限公司 | Die casting die buffer gear |
| CN113084125B (en) * | 2021-03-30 | 2023-02-28 | 广东启新汽车零部件有限公司 | Die casting die buffer gear |
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Application publication date: 20201020 |
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| RJ01 | Rejection of invention patent application after publication |