CN218139661U

CN218139661U - Injection mold for vacuum pump production

Info

Publication number: CN218139661U
Application number: CN202222634650.4U
Authority: CN
Inventors: 齐德稳
Original assignee: Shanghai Puju Plastic Technology Co ltd
Current assignee: Shanghai Puju Plastic Technology Co ltd
Priority date: 2022-10-08
Filing date: 2022-10-08
Publication date: 2022-12-27
Anticipated expiration: 2032-10-08

Abstract

The utility model relates to an injection mold field just discloses an injection mold for vacuum pump production, comprising a base plate, the top fixedly connected with die holder of bottom plate, the mold core chamber has been seted up to the inside of die holder, the both sides fixedly connected with slide bar on bottom plate top, the surperficial swing joint of slide bar has the slider, one side fixedly connected with fly leaf of slider, the mould is gone up to the bottom fixedly connected with of fly leaf, the top fixedly connected with of fly leaf case of moulding plastics. This an injection mold for vacuum pump production carries out the secondary heating to it through starting the heating wire, avoid the material to meet cold emergence part and tentatively solidify, guarantee the smooth and easy nature that the material flows, and start miniature servo motor and drive the stirring leaf and rotate, make the incasement portion of moulding plastics the material be heated evenly, and rotate and heat and can stir the air in the material and come out, and utilize one-way blast pipe with gas outgoing, and then reduce the micropore bubble quantity in the final finished product, improve off-the-shelf quality.

Description

Injection mold for vacuum pump production

Technical Field

The utility model relates to an injection mold field specifically is an injection mold for vacuum pump production.

Background

The injection mold is a tool for manufacturing a molded article by using an injection molding mode, and realizes the processing of the appearance of the article by changing the physical state of a molded material, and particularly relates to a method for injecting a heated and melted material into a mold cavity from high pressure, cooling and solidifying the material to obtain a molded product.

The present injection mold for vacuum pump production is inconvenient secondary heating exhaust when using, before the material is moulded plastics, contains some bubbles such as miscellaneous air in the material, and during its direct injection molding, probably contains the micropore bubble in can making final molding product, and then reduces the quality of its shaping product, leads to its inconvenience of using.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides an injection mold for vacuum pump production possesses the secondary heating of being convenient for advantages such as exhaust, has solved the problem among the above-mentioned background art.

(II) technical scheme

For the carminative purpose of the secondary heating of being convenient for of realization above-mentioned, the utility model provides a following technical scheme: the utility model provides an injection mold for vacuum pump production, includes the bottom plate, the top fixedly connected with die holder of bottom plate, the die core chamber has been seted up to the inside of die holder, the inside swing joint of die holder of die core chamber bottom has demoulding mechanism, the both sides fixedly connected with slide bar on bottom plate top, the surperficial swing joint of slide bar has the slider, one side fixedly connected with fly leaf of slider, the bottom fixedly connected with of fly leaf goes up the mould, the top fixedly connected with of fly leaf case of moulding plastics, the bottom and the last mould top intercommunication of case of moulding plastics, the inside swing joint of case of moulding plastics has rabbling mechanism, the top fixedly connected with of case of moulding plastics moulds plastics manages.

Stirring mechanism includes miniature servo motor, miniature servo motor fixed connection is in the one side of the case of moulding plastics, the miniature servo motor output extends to the puddler of the incasement portion of moulding plastics through shaft coupling fixedly connected with, the fixed surface of puddler is connected with the stirring leaf, the one-way blast pipe of upper end fixedly connected with of the case opposite side of moulding plastics, the interior diapire fixedly connected with water conservancy diversion seat of the case of moulding plastics, the interior roof fixedly connected with heater strip of water conservancy diversion seat carries out the secondary heating to it through starting the heater strip, avoids the material to meet cold and takes place the partial preliminary solidification, and starts miniature servo motor and drive the stirring leaf and rotate, stirs the material of the incasement portion of moulding plastics, makes it be heated evenly, and rotates and the air that the heating can be stirred out in the material to utilize one-way blast pipe to discharge gas, realize the exhaust action, and then reduce the micropore bubble quantity in the final finished product, improve off-the shelf quality.

Preferably, the shape of water conservancy diversion seat is funnel type, and the inclination of water conservancy diversion seat cross section and horizontal direction is fifty five degrees for material after the secondary heating can be more fast and more thorough row to last mould.

Preferably, be welding integral structure between the one end of stirring leaf and the puddler surface, and the angular distribution such as stirring leaf has four, guarantees the mechanical strength who is connected with the puddler surface, is convenient for to the even stirring of the incasement material of moulding plastics.

Preferably, demoulding mechanism is including leading to the groove, lead to the groove and set up the lower extreme in the die holder inside, and lead to the inner diapire fixedly connected with reset spring of groove, reset spring top fixedly connected with extends to the outside drawing of patterns frame of die holder, and the both sides fixedly connected with fixed plate of drawing of patterns frame top, the drawing of patterns groove has been seted up to the die holder inside of die holder bottom both sides, and the inside swing joint in drawing of patterns groove has the demoulding piece, the bottom and the drawing of patterns frame top fixed connection of demoulding piece, after the compound die, can make the drawing of patterns piece descend to get into the drawing of patterns inslot portion and block it, later after product cooling shaping, the fly leaf rises and realizes the split mould, and under reset spring's elastic force effect this moment for the drawing of patterns frame rises and drives the drawing of patterns piece up to move, and then provide an ascending thrust to shaping back product bottom, the split mould of the shaping product and mold core intracavity wall of being convenient for.

Preferably, the demoulding block is T-shaped, and the demoulding blocks are symmetrically distributed about the vertical central axis of the lower die holder, so that upward force can be synchronously applied to two sides of the bottom end of a formed product, and the demoulding effect on the formed product is further improved.

Preferably, the lower die holder at the two ends of the through groove is internally provided with a limiting groove, and the two ends of the demoulding frame are fixedly connected with limiting blocks matched with the limiting groove, so that the mould releasing frame can slide more stably up and down.

Preferably, the shape of drawing of patterns frame cross section is the U type, and drawing of patterns frame constitutes sliding construction through between the inside of stopper and spacing groove for with the synchronous atress in fly leaf both sides, be convenient for drawing of patterns frame's steady decline.

Preferably, the inside spiral winding of die holder of mold core chamber outer wall has the cooling tube, and the inlet tube that cooling tube one side lower extreme fixedly connected with extended to the die holder outer wall, cooling tube opposite side upper end fixedly connected with extends to the outside drain pipe of die holder, utilizes the area of contact of spiral helicine cooling tube increase and mold core chamber, prolongs the contact time on cooling water and mold core chamber surface, and then improves its heat transfer effect, is convenient for derive the quick heat transfer of the heat of the material of moulding plastics, the cooling shaping of the material of being convenient for.

Advantageous effects

Compared with the prior art, the utility model provides an injection mold for vacuum pump production possesses following beneficial effect:

1. this an injection mold for vacuum pump production, one-way blast pipe through setting up, the puddler, the heater strip, the water conservancy diversion seat, miniature servo motor and stirring leaf, carry out the reheat to it through starting the heating silk, avoid the material to meet the cold partial preliminary solidification that takes place, guarantee the smooth and easy nature of material flow, and start miniature servo motor and drive the stirring leaf and rotate, stir the incasement portion's of moulding plastics material, it is even to make it be heated, and rotate and the heating can be stirred the air in the material out, and utilize one-way blast pipe with gas outgoing, reduce the air content in the material of finally moulding plastics, and then reduce the micropore bubble quantity in the final finished product, improve off-the-shelf quality, reduce off-the-shelf defective rate, be convenient for improve the benefit of accessory production such as vacuum pump head, thereby the carminative problem of inconvenient reheat has been solved.

2. This an injection mold for vacuum pump production, through the logical groove that sets up, the drawing of patterns frame, the fixed plate, reset spring, drawing of patterns piece and drawing of patterns groove, when the compound die, the fly leaf descends and can touch the fixed plate and drive the drawing of patterns frame decline compression reset spring, and then make the drawing of patterns piece descend to get into the drawing of patterns inslot portion and carry out the shutoff to it, later after product cooling shaping, the fly leaf rises to realize the branch mould, this moment under reset spring's elastic force, make the drawing of patterns frame rise and drive the drawing of patterns piece up-wards, and then provide an ascending thrust to product bottom after the shaping, be convenient for the branch mould of shaping product and mold core intracavity wall, improve its drawing of patterns efficiency, avoid the inconvenience that the traditional drawing of patterns took out, improve its practicality, thereby the problem of inconvenient quick drawing of patterns has been solved.

Drawings

FIG. 1 is a schematic view of the front cross-sectional structure of the present invention;

FIG. 2 is a schematic view of a partial side view cross-sectional structure of the lower die holder of the present invention;

fig. 3 is a schematic top view of the present invention;

FIG. 4 is a schematic view of a partial three-dimensional structure of the top mold frame of the present invention;

FIG. 5 is an enlarged schematic view of the injection molding box of the present invention;

fig. 6 is an enlarged schematic structural diagram of a in fig. 1 according to the present invention.

In the figure: 1. a stirring mechanism; 101. a one-way exhaust pipe; 102. a stirring rod; 103. heating wires; 104. a flow guide seat; 105. a micro servo motor; 106. stirring blades; 2. injection molding a box; 3. injection molding a tube; 4. a movable plate; 5. an upper die; 6. a demolding mechanism; 601. a through groove; 602. demoulding the mould frame; 603. a fixing plate; 604. a limiting block; 605. a return spring; 606. a limiting groove; 607. demoulding; 608. a demoulding groove; 7. a water inlet pipe; 8. a base plate; 9. a lower die holder; 10. a die core cavity; 11. a slider; 12. a slide bar; 13. a drain pipe; 14. and (7) cooling the tube.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

The utility model provides a preferred embodiment of an injection mold for vacuum pump production is shown in fig. 1 to 6: the utility model provides an injection mold for vacuum pump production, comprising a base plate 8, the top fixedly connected with die holder 9 of bottom plate 8, die core chamber 10 has been seted up to the inside of die holder 9, the inside swing joint of die holder 9 of die core chamber 10 bottom has demoulding mechanism 6, the both sides fixedly connected with slide bar 12 on bottom plate 8 top, the surperficial swing joint of slide bar 12 has slider 11, one side fixedly connected with fly leaf 4 of slider 11, mould 5 on the bottom fixedly connected with of fly leaf 4, the top fixedly connected with of fly leaf 4 case 2 of moulding plastics, the bottom of case 2 of moulding plastics with go up 5 top intercommunications, the inside swing joint of case 2 of moulding plastics has rabbling mechanism 1, the top fixedly connected with injection molding pipe 3 of case 2 of moulding plastics.

Stirring mechanism 1 includes miniature servo motor 105, miniature servo motor 105 fixed connection is in the one side of the case 2 of moulding plastics, miniature servo motor 105 output extends to the inside puddler 102 of the case 2 of moulding plastics through shaft coupling fixedly connected with, the fixed surface of puddler 102 is connected with stirring leaf 106, the one-way blast pipe 101 of upper end fixedly connected with of the case 2 opposite side of moulding plastics, the interior diapire fixedly connected with water conservancy diversion seat 104 of the case 2 of moulding plastics, interior roof fixedly connected with heater strip 103 of water conservancy diversion seat 104, carry out the secondary heating through starting heater strip 103, avoid the material to meet the cold partial primary cure that takes place, guarantee the smooth and easy nature that the material flows, and start miniature servo motor 105 and drive stirring leaf 106 and rotate, stir the inside material of case 2 of moulding plastics, make it be heated evenly, and rotate and heat and can stir the air in the material out, and utilize one-way blast pipe 101 to discharge gas, and then reduce the micropore bubble quantity in the final finished product, improve finished product quality.

In this embodiment, the diversion seat 104 is funnel-shaped, and the inclination angle between the cross section of the diversion seat 104 and the horizontal direction is fifty-five degrees, and by arranging the funnel-shaped diversion seat 104, the material after the secondary heating can be more quickly and thoroughly discharged to the upper die 5.

In this embodiment, be welding integral structure between the one end of stirring leaf 106 and puddler 102 surface, and stirring leaf 106 angular distribution such as have four, through four welded stirring leaves 106 of angular distribution such as, guarantee the mechanical strength who is connected with puddler 102 surface, be convenient for to the even stirring of the inside material of case 2 that moulds plastics.

Example 2

On the basis of embodiment 1, the preferred embodiment of the injection mold for producing a vacuum pump provided by the present invention is shown in fig. 1 to 6: the demolding mechanism 6 comprises a through groove 601, the through groove 601 is formed in the lower end of the inside of the lower die holder 9, a return spring 605 is fixedly connected to the inner bottom wall of the through groove 601, a demolding frame 602 extending to the outside of the lower die holder 9 is fixedly connected to the top end of the return spring 605, fixing plates 603 are fixedly connected to two sides of the top end of the demolding frame 602, demolding grooves 608 are formed in the lower die holder 9 on two sides of the bottom end of the lower die holder 9, demolding blocks 607 are movably connected to the inside of the demolding grooves 608, the bottom ends of the demolding blocks 607 are fixedly connected to the top end of the demolding frame 602, after the dies are assembled, the demolding blocks 607 can descend to enter the inside of the demolding grooves 608 and block the demolding grooves, after the products are cooled and molded, the movable plate 4 ascends to achieve die separation, at the moment, under the elastic force of the return spring 605, the demolding blocks 607 are driven to move upwards by the ascending of the demolding blocks, an upward thrust is provided for the bottoms of the molded products, and the inner walls of the mold core cavities 10, and demolding efficiency is improved.

In this embodiment, the shape of the demolding block 607 is T-shaped, and the demolding blocks 607 are symmetrically distributed about the vertical central axis of the lower die holder 9, and the T-shaped demolding blocks 607 are symmetrically distributed, so that upward force can be synchronously applied to two sides of the bottom end of a molded product, and further the demolding effect of the molded product is improved.

In this embodiment, the lower die holder 9 at both ends of the through groove 601 is internally provided with a limiting groove 606, and both ends of the demolding frame 602 are fixedly connected with limiting blocks 604 matched with the limiting groove 606, and the demolding frame 602 slides in the limiting groove 606 through the limiting blocks 604, so that the up-and-down sliding of the demolding frame 602 is more stable.

In this embodiment, the shape of the cross section of the demolding frame 602 is U-shaped, and the demolding frame 602 forms a sliding structure through the inside of the limiting block 604 and the limiting groove 606, so that the demolding frame 602 is stressed synchronously with the two sides of the movable plate 4 through the U-shaped demolding frame 602, and the demolding frame 602 is convenient to descend stably.

In addition, the inside spiral winding of die holder 9 of die core chamber 10 outer wall has cooling

tube

14, and 14 one side lower extreme fixedly connected with of cooling tube extends to the inlet tube 7 of die holder 9 outer wall, 14 opposite side upper end fixedly connected with of cooling tube extends to the outside drain pipe 13 of die holder 9, carry the cooling water to the inside of cooling tube 14 by inlet tube 7 through equipment such as outside water pumps, utilize spiral helicine cooling tube 14 increase and die core chamber 10's area of contact, prolong the contact time on cooling water and 10 surfaces of die core chamber, and then improve its heat transfer effect, be convenient for derive the quick heat transfer of the heat of the material of moulding plastics, the cooling shaping of the material of being convenient for.

When the device is used, the water inlet pipe 7 and the water discharge pipe 13 are connected with an external pipeline, the injection molding pipe 3 is connected with a corresponding material injection molding conveying pipe, then an external driving device such as an air cylinder drives the movable plate 4 to descend, the mold closing action is started, the movable plate 4 descends to touch the fixed plate 603 to drive the demolding frame 602 to descend to compress the return spring 605, and then the demolding block 607 descends to enter the demolding groove 608 and seals the demolding groove, until the upper mold 5 and the lower mold base 9 are completely closed;

then, the material is conveyed into the injection molding box 2 through the injection molding pipe 3, the heating wire 103 is started to carry out secondary heating on the material, the material is prevented from being partially primarily solidified when being cooled, the flowing smoothness of the material is ensured, the micro servo motor 105 is started to drive the stirring blade 106 to rotate, the material in the injection molding box 2 is stirred, the material is uniformly heated, air in the material can be stirred out through rotation and heating, the gas is discharged through the one-way exhaust pipe 101, the air content in the final injection molding material is reduced, the number of micropore bubbles in the final finished product is further reduced, and the quality of the finished product is improved;

the exhausted material is conveyed to the interior of the mold core cavity 10 from the upper mold 5, at the moment, cooling water is conveyed to the interior of the cooling pipe 14 from the water inlet pipe 7 through equipment such as an external water pump and the like, the spiral cooling pipe 14 is utilized to increase the contact area with the mold core cavity 10, the contact time of the cooling water and the surface of the mold core cavity 10 is prolonged, the heat exchange effect is further improved, the heat of the injection molding material is conveniently and rapidly exchanged and conducted out in a heat exchange manner, the material is conveniently cooled and formed, and the cooling water after heat exchange is discharged from the water discharge pipe 13;

after the material cooling shaping, fly leaf 4 rises and realizes the branch mould, and under reset spring 605's elasticity effect this moment for demoulding frame 602 rises and drives demoulding piece 607 up-going, and then provides an ascending thrust to the product bottom after the shaping, and the mould of being convenient for shaping product and mold core cavity 10 inner wall improves its drawing of patterns efficiency.

To sum up, this an injection mold for vacuum pump production, the device can reduce the micropore bubble in the final shaping product with the gas outgoing in the material of moulding plastics, and can be convenient for cool off the drawing of patterns of shaping back product, improves drawing of patterns efficiency, and then through the cooperation of the two for this injection mold production efficiency and product are better, improve corresponding productivity effect.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An injection mould for the production of vacuum pumps, comprising a base plate (8), characterized in that: the injection molding machine is characterized in that a lower die holder (9) is fixedly connected to the top end of the bottom plate (8), a die core cavity (10) is formed in the lower die holder (9), a demolding mechanism (6) is movably connected to the interior of the lower die holder (9) at the bottom end of the die core cavity (10), slide rods (12) are fixedly connected to two sides of the top end of the bottom plate (8), a slide block (11) is movably connected to the surface of each slide rod (12), a movable plate (4) is fixedly connected to one side of each slide block (11), an upper die (5) is fixedly connected to the bottom end of each movable plate (4), an injection molding box (2) is fixedly connected to the top end of each movable plate (4), the bottom end of each injection molding box (2) is communicated with the top end of the upper die (5), a stirring mechanism (1) is movably connected to the interior of each injection molding box (2), and an injection molding pipe (3) is fixedly connected to the top end of each injection molding box (2);

stirring mechanism (1) is including miniature servo motor (105), miniature servo motor (105) fixed connection is in the one side of the case (2) of moulding plastics, miniature servo motor (105) output extends to the inside puddler (102) of the case (2) of moulding plastics through shaft coupling fixedly connected with, the fixed surface of puddler (102) is connected with stirring leaf (106), the one-way blast pipe of upper end fixedly connected with (101) of the case (2) opposite side of moulding plastics, the interior diapire fixedly connected with water conservancy diversion seat (104) of the case (2) of moulding plastics, the interior roof fixedly connected with heater strip (103) of water conservancy diversion seat (104).

2. An injection mould for vacuum pump production according to claim 1, characterised in that: the flow guide seat (104) is funnel-shaped, and the inclination angle of the cross section of the flow guide seat (104) and the horizontal direction is fifty-five degrees.

3. An injection mould for vacuum pump production according to claim 1, characterised in that: one end of the stirring blade (106) and the surface of the stirring rod (102) are of a welding integrated structure, and four stirring blades (106) are distributed at equal angles.

4. An injection mould for vacuum pump production according to claim 1, characterised in that: demoulding mechanism (6) are including leading to groove (601), lead to groove (601) and set up the lower extreme in die holder (9) inside, and lead to inner diapire fixedly connected with reset spring (605) of groove (601), reset spring (605) top fixedly connected with extends to die holder (9) outside drawing of patterns frame (602), and the both sides fixedly connected with fixed plate (603) on drawing of patterns frame (602) top, drawing of patterns groove (608) have been seted up to die holder (9) inside of die holder (9) bottom both sides, and the inside swing joint of drawing of patterns groove (608) has drawing of patterns piece (607), the bottom and drawing of patterns frame (602) top fixed connection of drawing of patterns piece (607).

5. An injection mould for vacuum pump production according to claim 4, wherein: the demoulding block (607) is T-shaped, and the demoulding blocks (607) are symmetrically distributed around the vertical central axis of the lower die holder (9).

6. An injection mould for vacuum pump production according to claim 4, wherein: the lower die holder (9) at the two ends of the through groove (601) is internally provided with a limiting groove (606), and the two ends of the demoulding frame (602) are fixedly connected with limiting blocks (604) matched with the limiting groove (606).

7. An injection mould for the production of vacuum pumps according to claim 4, characterised in that: the shape of the cross section of the demolding frame (602) is U-shaped, and the demolding frame (602) forms a sliding structure through the limiting block (604) and the limiting groove (606).

8. An injection mould for vacuum pump production according to claim 1, characterised in that: the die core cavity (10) is characterized in that a cooling pipe (14) is spirally wound inside the lower die holder (9) on the outer wall of the die core cavity (10), the lower end of one side of the cooling pipe (14) is fixedly connected with a water inlet pipe (7) extending to the outer wall of the lower die holder (9), and the upper end of the other side of the cooling pipe (14) is fixedly connected with a water drain pipe (13) extending to the outside of the lower die holder (9).