CN218171273U - Mold clamping mechanism for injection molding machine - Google Patents
Mold clamping mechanism for injection molding machine Download PDFInfo
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- CN218171273U CN218171273U CN202222250345.5U CN202222250345U CN218171273U CN 218171273 U CN218171273 U CN 218171273U CN 202222250345 U CN202222250345 U CN 202222250345U CN 218171273 U CN218171273 U CN 218171273U
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- fixing ring
- injection molding
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- machine body
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Abstract
The utility model discloses a locking mechanism for injection molding machine, including first solid fixed ring, the solid fixed ring of second, seal assembly. The first retaining ring and the second retaining ring provide a mounting location for the seal member. When the movable template and the fixed template in the die spotting machine body are closed, the rear end of the first connecting ring extends into the first groove to be contacted with the sealing gasket, so that the inner cavity of the die is sealed. The plastic melt is required to extrude out of the die assembly mechanism and also needs to pass through a gap between the first fixing block and the movable template, and two bends exist in the gap, so that the difficulty of overflowing the plastic melt is increased.
Description
Technical Field
The utility model relates to an injection molding machine technical field, in particular to locking mechanism for injection molding machine.
Background
An injection molding machine is a main molding device for manufacturing plastic products with various shapes by utilizing a plastic molding die for thermoplastic plastics or thermosetting plastics. The injection molding machine can heat the plastic, apply high pressure to the molten plastic, and inject it to fill the mold cavity. In the working process of an injection molding machine, the existing mold closing mechanism generally realizes the closing of a mold through thrust. When the mold closing mode faces to the injection molding process that the pressure borne by the interior of some molds is very high, the condition that a plastic solution is extruded out of the inner cavity of the mold through a gap under the action of high pressure sometimes occurs because the mold closing mechanism lacks tightness, so that the danger of scalding workers is caused, and the quality of the produced plastic products is also influenced.
SUMMERY OF THE UTILITY MODEL
The application provides a locking mechanism for injection molding machine, the effective sealing to the mould inner chamber can be realized to sealing component when the compound die, can solve and can appear the problem that the plastics solution is extruded out of the mould inner chamber through the gap under highly compressed effect sometimes.
The application provides a mold clamping mechanism for an injection molding machine, which comprises a first fixing ring, a second fixing ring and a sealing part; the first fixing ring is fixedly connected with a fixed template in the die spotting machine body, and the first fixing ring surrounds the movable template in the die spotting machine body for a circle when viewed from the front and back direction; the second fixing ring is fixedly connected with the movable template in the die spotting machine body, and the second fixing ring also surrounds the movable template in the die spotting machine body for a circle when viewed from the front and back direction; the sealing part is arranged between the first fixing ring and the second fixing ring and comprises a first connecting ring, a first groove, a sealing washer and two first limiting blocks; the first groove is arranged at the front end of the first fixing ring, and the first groove is arranged on the first fixing ring for a circle when viewed from the front and the rear; the sealing gasket is arranged in the first groove; when viewed from the cross section of the first groove, two ends of the notch of the first groove respectively extend to the middle of the notch to form a first limiting block; the first connecting ring is fixedly connected to the rear side of the second fixing ring, and when a movable template in the die spotting machine body is contacted with a fixed template, the rear end of the first connecting ring extends into the first groove to be contacted with the sealing gasket.
With the adoption of the technical scheme, the first fixing ring and the second fixing ring provide installation positions for the sealing component. When the movable template and the fixed template in the die spotting machine body are closed, the rear end of the first connecting ring extends into the first groove to be contacted with the sealing gasket, so that the inner cavity of the die is sealed. The plastic melt is required to extrude out of the die assembly mechanism and also needs to pass through a gap between the first fixing block and the movable template, and two bends exist in the gap, so that the difficulty of overflowing the plastic melt is increased.
In one embodiment, the number of the seal members is two, and the two seal members are provided inside and outside as viewed in the front-rear direction.
By adopting the technical scheme, when the movable template and the fixed template in the die spotting machine body are closed, the rear ends of the two first connecting rings respectively extend into the corresponding first grooves to be contacted with the corresponding sealing gaskets, so that the sealing effect is enhanced.
In one embodiment, the first connecting ring located at the outer side has a through hole at its upper end and lower end, respectively, and is provided with a hole cover.
By adopting the technical scheme, when the rear ends of the two first connecting rings respectively extend into the corresponding first grooves to be contacted with the corresponding sealing gaskets, cooling liquid can be added into the area between the two sealing parts through the through holes, so that the temperature of the two sealing gaskets is reduced.
In one embodiment, the sealing washer is made of silicon rubber.
By adopting the technical scheme, the silicon rubber material has good high temperature resistance and waterproofness, so that the silicon rubber material is suitable for the working environment.
In one embodiment, the connecting device further comprises a plurality of limiting rings, wherein the plurality of limiting rings are fixedly arranged on the inner side of the first connecting ring on the inner side and are arranged along the front-back direction.
By adopting the technical scheme, the plastic melt is required to be extruded out of the die closing mechanism and also needs to pass through the plurality of limiting rings, and the limiting rings can play a certain role in blocking the plastic melt.
In one embodiment, the cross section of the first connecting ring is an isosceles trapezoid, and the upper bottom of the isosceles trapezoid is arranged on one side close to the fixed template in the die spotting machine body.
By adopting the technical scheme, the structure is more stable in the process of compressing the sealing washer by the rear end of the first connecting ring, and the service life of the first connecting ring is prolonged.
In one embodiment, the die assembly machine further comprises a plurality of reinforcing ribs, wherein one side of each reinforcing rib is fixedly connected to the movable die plate in the die assembly machine body, and the other side of each reinforcing rib is fixedly connected to the rear end of the second fixing ring.
By adopting the technical scheme, the bearing capacity of the first connecting ring is increased, the compression performance provided by the first connecting ring is optimized, namely the sealing effect of the sealing part is improved.
To sum up, in this application, a locking mechanism for injection molding machine compares in prior art, through sealing component can realize the sealed to the mould machine inner chamber, avoids moulding plastics the high pressure that the in-process produced to extrude the clapper die spotting press with the plastics solution and scald the workman, has improved production facility's security, and the plastics solution no longer spills, has also improved injection moulding product's quality.
Drawings
In order to better and clearly illustrate the technical solutions in the embodiments or the background art of the present application, the drawings required to be used in the embodiments or the background art of the present application will be described below.
FIG. 1 is a rear elevational view of a clamping mechanism for an injection molding machine;
FIG. 2 isbase:Sub>A cross-sectional view taken along A-A of FIG. 1;
fig. 3 is an enlarged view of the area a in fig. 2.
In the figure, 1, a seal member; 2. a first stopper; 3. a first groove; 4. a sealing gasket; 5. a first connecting ring; 6. a first retaining ring; 7. a second retaining ring; 8. a through hole; 9. an orifice cover; 10. a limiting ring; 11. reinforcing ribs; 12. a torus; 21. fixing the template; 22. moving the template; 23. a hydraulic press; 24. and (4) injection molding of the opening.
Detailed Description
The following description is further illustrative of the embodiments of the present invention with reference to the accompanying drawings and examples; the following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
Referring to fig. 2, a die spotting machine body includes a fixed die plate 21, a movable die plate 22, a hydraulic press 23, and an injection molding opening 24. The hydraulic press 23 drives the movable template 22 to complete mold closing and mold opening, and plastic melt is injected into a mold cavity formed after mold closing from the injection port 24. The clapper die spotting press is prior art and will not be described in detail herein.
The utility model discloses in, before being decided into with the direction that movable mould board 22 is close to fixed die plate 21, the direction that movable mould board 22 kept away from fixed die plate 21 is decided into the back.
Referring to fig. 2 and 3, a clamping mechanism for an injection molding machine includes a first fixing ring 6, a second fixing ring 7, and a sealing member 1.
Referring to fig. 2, the first fixing ring 6 is fixedly connected to a fixing mold plate 21 in the clamping machine body, and the first fixing ring 6 surrounds a moving mold plate 22 in the clamping machine body in a circle when viewed from the front-back direction.
The second fixing ring 7 is fixedly connected to the movable die plate 22 in the die spotting machine body, and the second fixing ring 7 also surrounds the movable die plate 22 in the die spotting machine body by one circle when viewed from the front-rear direction.
In one embodiment, the first fixing ring 6 and the second fixing ring 7 are circular rings as viewed from the front-rear direction.
In one embodiment, the first fixing ring 6 and the second fixing ring 7 are preferably square rings as viewed from the front-rear direction. Compared with a circular ring, the square ring is arranged closer to the shape of the movable template 22, the arrangement area is reduced, the arrangement materials are reduced, and the whole structure is more compact.
Further, the die-filling machine further comprises a plurality of reinforcing ribs 11, wherein one side of each reinforcing rib 11 is fixedly connected to the movable die plate 22 in the die spotting machine body, and the other side of each reinforcing rib 11 is fixedly connected to the rear end of the second fixing ring 7. By means of the arrangement, the bearing capacity of the first connecting ring 5 is increased, and the compression performance provided by the first connecting ring 5 is optimized.
Referring to fig. 3, the sealing member 1 is disposed between the first fixing ring 6 and the second fixing ring 7, and the sealing member 1 includes a first connecting ring 5, a first groove 3, a sealing washer 4, and two first limiting blocks 2.
Referring to fig. 3, the first groove 3 is disposed at the front end of the first fixing ring 6, and the first groove 3 is disposed on the first fixing ring 6 in a circle when viewed from the front-back direction. Seen from the cross section of the first groove 3, two ends of the notch of the first groove 3 respectively extend out of the first limiting block 2 towards the middle of the notch, and the first limiting block is used for limiting the sealing washer 4.
Referring to fig. 3, the sealing washer 4 is disposed in the first groove 3.
Referring to fig. 3, the first connecting ring 5 is fixedly connected to the rear side of the second fixing ring 7, and when the movable mold plate 22 in the die spotting machine body contacts the fixed mold plate 21, the rear end of the first connecting ring 5 extends into the first groove 3 to contact the sealing gasket 4, so as to achieve the effect of sealing the inner cavity of the die.
Further, the cross section of the first connecting ring 5 is an isosceles trapezoid, and the upper bottom of the isosceles trapezoid is on the side close to the fixed template 21 in the die spotting machine body. Due to the arrangement, the structure is more stable in the process of compressing the sealing washer 4 by the rear end of the first connecting ring 5, and the service life of the first connecting ring 5 is prolonged.
Referring to fig. 3, in one embodiment, preferably, there are two sealing members 1, and when viewed from the front-back direction, the two sealing members 1 are arranged inside and outside, and when viewed from the front-back direction, the size of the sealing member 1 on the outside is larger. Set up like this, when the movable mould board 22 in the clapper die spotting press body and fixed die plate 21 close, two the rear end of first connecting ring 5 stretches into respectively the correspondence first recess 3 with correspond seal ring 4 contacts, has strengthened sealed effect.
Furthermore, the connecting device also comprises a plurality of limiting rings 10, wherein the limiting rings 10 are fixedly arranged on the inner side of the first connecting ring 5 positioned on the inner side and are arranged along the front-back direction. In this arrangement, the plastic melt is required to pass through the limiting rings 10 in order to extrude the mold clamping mechanism, and the limiting rings 10 can play a certain role in blocking the plastic melt.
In one embodiment, each of the retainer rings 10 has a triangular shape in cross section, one side of which is perpendicular to a side surface of the moving plate 22, a hypotenuse of the triangular shape is located on a front side of the one side, and the other side of the triangular shape is provided on the first connection ring 5.
Furthermore, the upper end and the lower end of the first connecting ring 5 located at the outer side are respectively provided with a through hole 8 and a hole cover 9. With the arrangement, when the rear ends of the two first connecting rings 5 respectively extend into the corresponding first grooves 3 to be in contact with the corresponding sealing gaskets 4, the cooling liquid can be added into the area between the two sealing parts 1 through the through holes 8, so that the temperature of the two sealing gaskets 4 is reduced. The through hole 8 at the upper end is used for feeding cooling liquid, and the through hole 8 at the lower end is used for discharging cooling liquid.
In one embodiment, preferably, the two through holes 8 are circular, and the first connecting ring 5 extends outwards from one ring body 12 at a position around the two through holes 8. The ring body 12 is provided with external threads, and the hole cover 9 is provided with internal threads matched with the hole cover. Each hole cover 9 is provided with a sealing ring, when a movable template 22 and a fixed template 21 in the die spotting machine body are closed, the rear ends of the two first connecting rings 5 respectively extend into the corresponding first grooves 3 to be contacted with and pressed by the corresponding sealing gaskets 4, and after the hole covers 9 are screwed down, the sealing effect of the area between the two first connecting rings 5 can be achieved.
Further, the sealing washer 4 is made of silicon rubber. The silicon rubber material has good high temperature resistance and waterproofness, so that the silicon rubber material is suitable for the working environment.
Claims (7)
1. A clamping mechanism for an injection molding machine comprises a clamping machine body and is characterized by comprising a first fixing ring (6), a second fixing ring (7) and a sealing part (1);
the first fixing ring (6) is fixedly connected with a fixing template (21) in the die spotting machine body, and the first fixing ring (6) surrounds a movable template (22) in the die spotting machine body by one circle when viewed from the front and back direction;
the second fixing ring (7) is fixedly connected to a movable template (22) in the die spotting machine body, and the second fixing ring (7) also surrounds the movable template (22) in the die spotting machine body in a circle when viewed from the front and back directions;
the sealing part (1) is arranged between the first fixing ring (6) and the second fixing ring (7), and the sealing part (1) comprises a first connecting ring (5), a first groove (3), a sealing gasket (4) and two first limiting blocks (2);
the first groove (3) is arranged at the front end of the first fixing ring (6), and the first groove (3) is arranged on the first fixing ring (6) in a circle when viewed from the front to the rear;
the sealing gasket (4) is arranged in the first groove (3);
when viewed from the cross section of the first groove (3), two ends of the notch of the first groove (3) respectively extend out of a first limiting block (2) towards the middle of the notch;
the first connecting ring (5) is fixedly connected to the rear side of the second fixing ring (7), and when a movable template (22) in the die spotting machine body is contacted with a fixed template (21), the rear end of the first connecting ring (5) extends into the first groove (3) to be contacted with the sealing gasket (4).
2. A clamping mechanism for an injection molding machine according to claim 1, wherein said sealing member (1) has two, and said two sealing members (1) are arranged inside and outside as viewed in the front-rear direction.
3. Clamping mechanism for injection molding machines, according to claim 2, characterized in that the first connecting ring (5) on the outside is provided with a through hole (8) at its upper and lower end, respectively, and is provided with a cover (9).
4. Clamping mechanism for injection molding machines according to claim 3, characterized in that the sealing gasket (4) is made of silicone rubber.
5. The clamping mechanism for the injection molding machine as claimed in claim 2, further comprising a plurality of limiting rings (10), wherein the plurality of limiting rings (10) are fixedly arranged on the inner side of the first connecting ring (5) on the inner side and arranged in the front-back direction.
6. The clamping mechanism for an injection molding machine as claimed in claim 1, wherein the first connecting ring (5) has a cross section of an isosceles trapezoid whose upper base is on a side close to the fixed platen (21) in the clamping machine body.
7. The clamping mechanism for an injection molding machine according to claim 1, further comprising a plurality of reinforcing ribs (11), wherein each of the reinforcing ribs (11) is fixedly connected to the movable platen (22) in the clamping machine body on one side and fixedly connected to the rear end of the second fixing ring (7) on one side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222250345.5U CN218171273U (en) | 2022-08-25 | 2022-08-25 | Mold clamping mechanism for injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222250345.5U CN218171273U (en) | 2022-08-25 | 2022-08-25 | Mold clamping mechanism for injection molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218171273U true CN218171273U (en) | 2022-12-30 |
Family
ID=84618352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222250345.5U Active CN218171273U (en) | 2022-08-25 | 2022-08-25 | Mold clamping mechanism for injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218171273U (en) |
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2022
- 2022-08-25 CN CN202222250345.5U patent/CN218171273U/en active Active
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