CN220576514U - Backshell class mould runner structure - Google Patents
Backshell class mould runner structure Download PDFInfo
- Publication number
- CN220576514U CN220576514U CN202322170964.8U CN202322170964U CN220576514U CN 220576514 U CN220576514 U CN 220576514U CN 202322170964 U CN202322170964 U CN 202322170964U CN 220576514 U CN220576514 U CN 220576514U
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- pouring
- nozzle body
- hot nozzle
- nozzle
- gate
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- 238000009434 installation Methods 0.000 claims abstract description 16
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 210000001503 joint Anatomy 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000010030 laminating Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 4
- 238000002347 injection Methods 0.000 abstract description 3
- 239000007924 injection Substances 0.000 abstract description 3
- 239000011148 porous material Substances 0.000 description 4
- 238000007792 addition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The application discloses backshell class mould runner structure belongs to the injection mold field, has solved among the prior art wholly and has changed the runner structure cost higher, the screw thread of runner structure damages back each part deformation and cause leak material scheduling problem. In the application, an annular groove is formed on the outer surface of the middle section of the pouring gate; a thread sleeve is arranged between the annular groove and the inner wall of the installation cavity of the hot nozzle body, and the thread sleeve is provided with external threads and is in threaded connection with the inner wall of the installation cavity of the hot nozzle body; the upper section of the hot nozzle body is provided with an annular part, an upper connecting sleeve is sleeved outside the annular part, and the upper connecting sleeve is provided with external threads and is in threaded connection with the upper section of the counter bore of the die body. According to the gate structure of the rear shell mold, the parts have good supporting and positioning properties, the deformation of the parts can be reduced, and after the parts are disassembled for many times, only the damaged threaded sleeve is needed to be replaced, the whole replacement is not needed, and the cost is reduced.
Description
Technical Field
The utility model relates to a gate structure of a rear shell type mould, and belongs to the field of moulds.
Background
Along with the increasingly strict requirements of precision industries on injection molding products, a sprue is a connecting part between a runner and a cavity and is also the last part of an injection mold feeding system, and the sprue has the following basic functions: the molten plastic from the runner is allowed to enter and fill the cavity at the fastest rate.
At present, a sprue structure of an injection mold generally adopts a structure formed by sequentially sleeving a hot nozzle, a sprue gate and a sprue gate. The pouring nozzle is generally made of copper materials, so that the strength of the pouring nozzle is insufficient, and a hot nozzle and a pouring nozzle are required to be supported, positioned and installed. However, since the pouring gate is frequently disassembled and cleaned, the threaded connection between the hot nozzle and the pouring gate driver and the threaded connection between the hot nozzle and the die body can be damaged due to long-term disassembly and assembly, and the whole pouring gate is required to be replaced, so that the cost is high. And because the damage of screw thread, the hot mouth can warp with the runner department, hot mouth and the connection of the mould body, supports fixed effect to the runner mouth and reduces for the runner mouth takes place to warp, causes quality problems such as leaking the material.
Disclosure of Invention
The utility model provides a pouring gate structure of a back shell mould, which has good supporting and positioning performance among all parts, can reduce the deformation of all parts, and only needs to replace a damaged threaded sleeve after being disassembled for many times, so that the whole replacement is not needed, and the cost is reduced.
The technical scheme adopted by the utility model is that the gate structure of the rear shell type mould comprises a mould body, a gate driver and a gate nozzle; the pouring gate is internally provided with a through cavity for installing a pouring gate nozzle, the pouring gate nozzle passes through the pouring gate through cavity of the pouring gate, and the pouring gate is installed in the die body;
the hot nozzle body is also included; a counter bore is constructed on the end face of the die body, and the hot nozzle body is arranged in the counter bore and is matched with the counter bore; the inside of the hot nozzle body is provided with a mounting cavity penetrating through the hot nozzle body; the pouring gate is arranged at the lower section of the mounting cavity; the bottom end of the counter bore is provided with a runner port, and the outlet end of the runner port is communicated with the runner port;
an annular groove is formed in the outer surface of the middle section of the pouring gate; a thread sleeve is arranged between the annular groove and the inner wall of the installation cavity of the hot nozzle body, and the thread sleeve is provided with external threads and is in threaded connection with the inner wall of the installation cavity of the hot nozzle body;
the upper section of the hot nozzle body is provided with an annular part, an upper connecting sleeve is sleeved outside the annular part, and the upper connecting sleeve is provided with external threads and is in threaded connection with the upper section of the counter bore of the die body.
Optimally, in the pouring gate structure of the rear shell mould, the threaded sleeve is in butt joint with the two half sleeves to form a cylinder;
the upper connecting sleeve is in butt joint with two semi-rings to form a ring shape.
Optimally, the gate structure of the rear shell mold is provided with a first pin hole on the threaded sleeve; the gate driver is provided with a second pin hole; the pin hole I is matched with the pin hole II and is in butt joint with the pin hole II through a pin shaft;
the upper connecting sleeve is provided with a pin hole III, the hot nozzle body is provided with a pin hole IV, and the pin hole III is matched with the pin hole IV and is in butt joint with the pin hole IV through a pin shaft; the side wall of the annular part of the hot nozzle body is provided with an annular groove matched with the upper connecting sleeve.
Preferably, in the pouring gate structure of the rear shell mold, a horn-shaped opening groove is formed in an opening at the lower end of the pouring gate, an annular positioning ring is arranged in the opening groove, and the positioning ring is sleeved on the lower section of the pouring gate nozzle and in interference fit with the positioning ring;
the locating ring is matched with the open slot, and the surface of the locating ring is in compression contact with the matched inner wall of the open slot.
Preferably, in the gate structure of the rear shell mold, the lower end of the gate driver protrudes out of the lower end of the hot nozzle body; the lower end of the pouring gate driver is provided with a second annular positioning ring, the lower end face of the second positioning ring is a conical face, the inner bottom end face of the counter bore of the die body is provided with a positioning groove matched with the second positioning ring, the lower end face of the second positioning ring is inserted into the positioning groove at the bottom end of the counter bore, and the lower end face of the second positioning ring is attached to the inner wall of the positioning groove.
Preferably, in the gate structure of the rear shell mold, the upper end face of the second positioning ring is a conical face, and the lower end face of the hot nozzle body is attached to the upper end face of the second positioning ring.
Optimally, the upper end face of the gate nozzle and the gate driver are positioned on the same plane in the gate structure of the rear shell mold; a locating surface is constructed in the installation cavity of the hot nozzle body and is attached to the upper end surfaces of the pouring nozzle and the pouring nozzle.
Preferably, in the gate structure of the rear shell mold, an annular copper gasket is arranged between the positioning surface and the upper end surfaces of the gate nozzle and the gate driver, and the copper gasket is in compression contact with the positioning surface and the upper end surfaces of the gate nozzle.
Preferably, in the pouring gate structure of the rear shell mold, a groove matched with the annular part of the hot nozzle body is formed in the inner side wall of the upper section of the counter bore of the mold body, and the lower end face of the annular part of the hot nozzle body is attached to the inner surface of the groove of the upper section of the counter bore.
The application has the advantages that: in the technical scheme of this application, set up thread bush and upper portion adapter sleeve to this carries out the threaded connection between runner department and hot mouth body, hot mouth body and the mould body, and after many times dismantlement screw thread damages, only need change thread bush, upper portion adapter sleeve can, need not to change whole runner structure, has reduced use cost.
In the technical scheme of this application, set up the spacing face of many places between runner department and hot mouth body, between hot mouth body and the mould body to set up spacing and support fixed knot structure between runner department and runner department, reduced the probability that each structure appears the heat altered shape, prevent the emergence of leaking the material condition, improve the life of runner structure.
Drawings
FIG. 1 is a schematic structural diagram of the present application;
FIG. 2 is a schematic view of the internal structure of the feed tube of the present application after being inserted into the gate structure;
fig. 3 is a schematic structural view of the thread bush of the present application.
Detailed Description
The technical features of the present utility model are further described below with reference to the accompanying drawings and the specific embodiments.
As shown in the figure, the utility model discloses a pouring gate structure of a back shell mold, which comprises a hot nozzle body 1, a mold body 4, a pouring gate nozzle 3 and a pouring gate nozzle 2, wherein the hot nozzle body 1, the pouring gate nozzle 3 and the pouring gate nozzle 2 are sequentially sleeved from outside to inside.
The end face of the die body 4 is provided with a counter bore, and the hot nozzle body 1 is arranged in the counter bore. The inside of the hot nozzle body 1 is provided with a mounting cavity penetrating through the hot nozzle body 1, and the pouring gate driver 3 is mounted at the lower section of the mounting cavity.
The gate unit 3 is internally provided with a through cavity for installing the gate nozzle 2, so that the gate unit 3 forms a circular tube type metal sleeve. The sprue nozzle 2 passes through the sprue gate 3 through the through cavity of the sprue gate 3.
The bottom end of the counter bore is provided with a runner mouth, a feeding pore canal penetrating through the runner mouth 2 is arranged in the runner mouth 2, and an upper end opening and a lower end opening of the feeding pore canal are respectively positioned on the upper end face and the lower end face of the runner mouth 2. After the sprue nozzle 2 is installed, the upper end opening of the feeding pore canal is positioned in the installation cavity of the hot nozzle body 1, the lower end of the sprue nozzle 2 protrudes out of the lower ends of the hot nozzle body 1 and the sprue nozzle 3, and the lower end opening of the feeding pore canal is opposite to the runner mouth.
An annular groove is formed in the outer surface of the middle section of the pouring gate driver 3, a thread sleeve 301 is arranged between the annular groove and the inner wall of the installation cavity of the hot nozzle body 1, the inner wall of the installation cavity of the hot nozzle body 1 is provided with internal threads, and the thread sleeve 301 is provided with external threads and is in threaded connection with the inner wall of the installation cavity of the hot nozzle body 1.
The threaded sleeve 301 is cylindrical in shape with the two halves abutted. The threaded sleeve 301 has a first pin hole extending through the threaded sleeve 301. And a second pin hole is formed in the gate driver 3 and penetrates through the side wall of the gate driver 3. During installation, the two half sleeves of the threaded sleeve 301 are installed in the annular groove of the gate driver 3, then the first pin hole and the second pin hole are inserted through the pin shafts, and the two half sleeves of the threaded sleeve 301 are fixed in the annular groove of the gate driver 3 through interference fit of the pin shafts and the pin holes. The threaded sleeve 301 is attached to the inner wall of the annular groove and is limited and fixed through the annular groove. After the two halves of the threaded sleeve 301 are mated, the external threads on the two halves mate as complete threads.
The upper section of the hot nozzle body 1 is provided with an annular part, an upper connecting sleeve 101 is sleeved outside the annular part, an internal thread is constructed at the upper section of the counter bore of the die body 4, and the upper connecting sleeve 101 is provided with an external thread and is in threaded connection with the upper section of the counter bore of the die body 4.
The upper connecting sleeve 101 is butted into a ring shape by two semi-rings. The upper connecting sleeve 101 is provided with a pin hole III, the pin hole III penetrates through the side wall of the upper connecting sleeve 101, and the hot nozzle body 1 is provided with a pin hole IV which penetrates through the side wall of the hot nozzle body 1.
During installation, the two semi-rings of the upper connecting sleeve 101 are installed on the annular part of the hot nozzle body 1, the pin hole III is opposite to the pin hole IV at the moment, then the pin hole III and the pin hole IV are inserted through the pin shaft, and the two semi-rings of the upper connecting sleeve 101 are fixed on the annular part of the hot nozzle body 1 of the gate driver 3 through interference fit of the pin shaft and the pin hole. An annular groove II is formed in the annular part of the hot nozzle body 1, and the upper connecting sleeve 101 is attached to the inner wall of the annular groove II and is limited and fixed through the annular groove II. After the two semi-rings of the upper connecting sleeve 101 are butted, the external threads on the two semi-rings are butted into complete threads.
As shown in the figure, the lower end opening of the pouring nozzle 3 is provided with a horn-shaped opening groove, the opening groove is internally provided with an annular positioning ring 302, and the positioning ring 302 is sleeved on the lower section of the pouring nozzle 2 and is in interference fit with the positioning ring 302. The positioning ring 302 is matched with the open slot, and the surface of the positioning ring 302 is in pressing contact with the matched inner wall of the open slot. After the nozzle 2 is inserted into the nozzle 3 from the upper end of the nozzle 3, the lower end of the nozzle 2 protrudes from the lower end surface of the nozzle 3. Then, the locating ring 302 is sleeved on the gate nozzle 2 from the lower end of the gate nozzle 2, the locating ring 302 is clamped into the open slot through knocking, the outer surface of the upper section of the gate nozzle 2 is provided with an annular bulge, the upper section of the inside of the gate nozzle 3 is provided with a clamping slot matched with the annular bulge, after the gate nozzle 2 is inserted into the gate nozzle 3 from the upper end of the gate nozzle 3, the annular bulge is clamped in the clamping slot, and the upper end and the lower end of the gate nozzle 2 are fixedly arranged at the position of the gate nozzle 2 in the gate nozzle 3 through the matching of the annular bulge and the clamping slot and the matching of the locating ring 302 and the open slot, so that the effectiveness of limiting and fixing is ensured.
The lower end of the pouring spout 3 protrudes from the lower end of the hot nozzle body 1. The lower extreme of runner department 3 has annular holding ring two 303, and the lower terminal surface of holding ring two 303 is conical face, and the inside bottom end face of the counter bore of mould body 4 has the constant head tank that sets up with holding ring two 303 cooperation, in the lower inserted lower terminal surface of holding ring two 303 and the constant head tank of counter bore bottom, the lower terminal surface of holding ring two 303 and the laminating of constant head tank inner wall. The upper end face of the second positioning ring 303 is a conical face, and the lower end face of the hot nozzle body 1 is attached to the upper end face of the second positioning ring 303. The second positioning ring 303 is propped in the counter bore of the die body 4 by the hot nozzle body 1, and the position of the lower end of the gate driver 3 in the die body 4 is limited by the lamination of all positioning surfaces, so that the positioning effectiveness is ensured.
The upper end face of the sprue nozzle 2 and the sprue gate 3 are positioned on the same plane. A positioning surface 103 is constructed in the installation cavity of the hot nozzle body 1, and the positioning surface 103 is attached to the upper end surfaces of the sprue nozzle 2 and the sprue gate 3. An annular copper gasket 102 is arranged between the positioning surface 103 and the upper end surfaces of the gate nozzle 2 and the gate nozzle 3, and the copper gasket 102 is in compression contact with the positioning surface 103 and the upper end surface of the gate nozzle 2. According to the clearance between the locating surface 103 and the upper end surfaces of the gate nozzle 2 and the gate driver 3, the thickness of the copper gasket 102 is selected, so that the clearance between the locating surface 103 and the upper end surfaces of the gate nozzle 2 and the gate driver 3 is reduced, the longitudinal movement of the gate nozzle 2 and the gate driver 3 is avoided, and the installation stability of the gate nozzle 2 and the gate driver 3 is ensured.
The inner side wall of the upper section of the counter bore of the die body 4 is provided with a slot matched with the annular part of the hot nozzle body 1, and the lower end surface of the annular part of the hot nozzle body 1 is attached to the inner surface of the slot of the upper section of the counter bore.
It should be understood that the above description is not intended to limit the utility model to the particular embodiments disclosed, but to limit the utility model to the particular embodiments disclosed, and that various changes, modifications, additions and substitutions can be made by those skilled in the art without departing from the spirit and scope of the utility model.
Claims (9)
1. A pouring gate structure of a back shell mould comprises a mould body (4), a pouring gate driver (3) and a pouring gate nozzle (2); a through cavity for installing the sprue nozzle (2) is formed in the sprue gate (3), the sprue nozzle (2) penetrates through the sprue gate (3) through the through cavity of the sprue gate (3), and the sprue gate (3) is installed in the die body (4); the method is characterized in that:
the hot nozzle also comprises a hot nozzle body (1); a counter bore is constructed on the end face of the die body (4), and the hot nozzle body (1) is arranged in the counter bore and is matched with the counter bore; the inside of the hot nozzle body (1) is provided with a mounting cavity penetrating through the hot nozzle body (1); the pouring gate driver (3) is arranged at the lower section of the mounting cavity; the bottom end of the counter bore is provided with a runner port, and the outlet end of the runner nozzle (2) is communicated with the runner port;
an annular groove is formed in the outer surface of the middle section of the pouring gate (3); a thread sleeve (301) is arranged between the annular groove and the inner wall of the installation cavity of the hot nozzle body (1), and the thread sleeve (301) is provided with external threads and is in threaded connection with the inner wall of the installation cavity of the hot nozzle body (1);
the upper section of the hot nozzle body (1) is provided with an annular part, an upper connecting sleeve (101) is sleeved outside the annular part, and the upper connecting sleeve (101) is provided with external threads and is in threaded connection with the upper section of the counter bore of the die body (4).
2. The backshell type mold gate structure of claim 1, wherein: the thread sleeve (301) is formed by butt joint of two half sleeves into a cylinder shape;
the upper connecting sleeve (101) is in butt joint into a ring shape by two semi-rings.
3. The backshell type mold gate structure of claim 2, wherein: the thread sleeve (301) is provided with a first pin hole; a second pin hole is formed in the gate driver (3); the pin hole I is matched with the pin hole II and is in butt joint with the pin hole II through a pin shaft;
the upper connecting sleeve (101) is provided with a pin hole III, the hot nozzle body (1) is provided with a pin hole IV, and the pin hole III is matched with the pin hole IV and is in butt joint with the pin hole IV through a pin shaft; the side wall of the annular part of the hot nozzle body (1) is provided with an annular groove matched with the upper connecting sleeve (101).
4. The backshell type mold gate structure of claim 1, wherein: the lower end opening of the pouring nozzle (3) is internally provided with a horn-shaped opening groove, the opening groove is internally provided with an annular positioning ring (302), and the positioning ring (302) is sleeved on the lower section of the pouring nozzle (2) and is in interference fit with the positioning ring (302);
the positioning ring (302) is matched with the open slot, and the surface of the positioning ring (302) is in pressing contact with the matched inner wall of the open slot.
5. The backshell type mold gate structure of claim 4, wherein: the lower end of the pouring gate (3) protrudes out of the lower end of the hot nozzle body (1); the lower extreme of runner (3) has annular holding ring two (303), and the lower terminal surface of holding ring two (303) is conical face, and the inside bottom end face of the counter bore of the mould body (4) has the constant head tank that sets up with holding ring two (303) cooperation, in the lower terminal surface of holding ring two (303) lower segment male and the constant head tank of counter bore bottom, the lower terminal surface and the laminating of constant head tank inner wall of holding ring two (303).
6. The backshell type mold gate structure of claim 5, wherein: the upper end face of the second positioning ring (303) is a conical face, and the lower end face of the hot nozzle body (1) is attached to the upper end face of the second positioning ring (303).
7. The backshell type mold gate structure of claim 1, wherein: the upper end face of the pouring nozzle (2) and the pouring nozzle (3) are positioned on the same plane; a positioning surface (103) is constructed in the installation cavity of the hot nozzle body (1), and the positioning surface (103) is attached to the upper end surfaces of the pouring nozzle (2) and the pouring nozzle (3).
8. The backshell type mold gate structure of claim 7, wherein: an annular copper gasket (102) is arranged between the locating surface (103) and the upper end surfaces of the pouring nozzle (2) and the pouring nozzle (3), and the copper gasket (102) is in compression contact with the locating surface (103) and the upper end surface of the pouring nozzle (2).
9. The backshell type mold gate structure of claim 1, wherein: the inner side wall of the upper section of the counter bore of the die body (4) is provided with a slot matched with the annular part of the hot nozzle body (1), and the lower end surface of the annular part of the hot nozzle body (1) is attached to the inner surface of the slot of the upper section of the counter bore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322170964.8U CN220576514U (en) | 2023-08-14 | 2023-08-14 | Backshell class mould runner structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322170964.8U CN220576514U (en) | 2023-08-14 | 2023-08-14 | Backshell class mould runner structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220576514U true CN220576514U (en) | 2024-03-12 |
Family
ID=90111652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322170964.8U Active CN220576514U (en) | 2023-08-14 | 2023-08-14 | Backshell class mould runner structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220576514U (en) |
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2023
- 2023-08-14 CN CN202322170964.8U patent/CN220576514U/en active Active
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