CN216230470U - Injection mold capable of forming bidirectional T-shaped threads on plastic cylinder - Google Patents
Injection mold capable of forming bidirectional T-shaped threads on plastic cylinder Download PDFInfo
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- CN216230470U CN216230470U CN202121587217.9U CN202121587217U CN216230470U CN 216230470 U CN216230470 U CN 216230470U CN 202121587217 U CN202121587217 U CN 202121587217U CN 216230470 U CN216230470 U CN 216230470U
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Abstract
The utility model relates to an injection mold capable of forming bidirectional T-shaped threads on a plastic cylinder, which comprises a front mold unit and a bottom mold unit, wherein the front mold unit and the bottom mold unit can be opened or closed, a glue injection channel is arranged in the center of the front mold and penetrates through the front mold, the front mold unit is provided with a fixing plate, the fixing plate comprises a rotating shaft and a front plate, the rotating shaft is provided with a first mold positioning groove, a front mold spiral lug is arranged in the first mold positioning groove, the bottom mold unit is provided with a second mold positioning groove, a thimble and a bottom mold spiral lug are arranged in the second mold positioning groove, the thimble is arranged at the bottom end of the center of the second mold positioning groove, when the injection mold is operated, a plastic material is injected into the first mold positioning groove and the second mold positioning groove, and the plastic material in the first mold positioning groove is demolded by the rotating mode of the rotating shaft, and demolding the plastic material in the positioning groove of the second model in a mode of ejecting the plastic material by the ejector pin.
Description
Technical Field
The utility model relates to the field of plastic molds, in particular to an injection mold capable of forming a bidirectional T-shaped thread on a plastic cylinder.
Background
The unfolding and closing of the front mold and the bottom mold of the conventional plastic mold are horizontally and linearly reciprocated, and if the surface of the plastic material is provided with threads, the linear reciprocation of the conventional mold can damage the threads on the surface of the plastic material or can break the plastic material, so that the conventional mold is difficult to mold a mold with threads on the surface of the plastic material, which is a main technical disadvantage of the conventional technology.
SUMMERY OF THE UTILITY MODEL
According to the utility model, the plastic material in the first model positioning groove is demoulded by the rotation mode of the rotating shaft, and the plastic material in the second model positioning groove is demoulded by the ejection mode of the ejector pin, so that the plastic material is prevented from being broken when the mold is opened.
The technical scheme adopted by the utility model is as follows: comprises a front die unit and a bottom die unit, wherein the front die unit and the bottom die unit can be unfolded or closed, the center of the front mould unit is provided with a glue injection channel which penetrates through the front mould unit, the front mould unit is provided with a fixed plate, the fixed plate comprises a rotating shaft and a front plate, the rotating shaft is provided with a first mould positioning groove, the first model positioning groove is internally provided with a front model spiral lug, the bottom die unit is provided with a second model positioning groove, the second model positioning groove is internally provided with an ejector pin and a bottom die spiral convex block, the ejector pin is arranged at the bottom end of the center of the second model positioning groove, when the mold works, plastic materials are injected into the first mold positioning grooves and the second mold positioning grooves, and the plastic material in the first model positioning groove is demoulded by the rotating mode of the rotating shaft, and the plastic material in the second model positioning groove is demoulded by the mode of ejecting the ejector pin.
Further, the front mold unit comprises a positioning plate and a cylinder, the side end of the positioning plate is connected with the side end of the fixing plate, the cylinder is arranged on each of two sides of the fixing plate, the fixing plate comprises a rack and a gear, the outer side of one side end of the rotating shaft is sleeved on the inner side of the gear, the outer side of the gear is meshed and connected with the rack, the rotating shaft is provided with a first mold positioning groove, the gear is provided with a first tooth,
the surface of the rack is provided with a second tooth and a cylinder contact end, the second tooth is meshed with the first tooth, the cylinder contact end is connected with the cylinder, and the cylinder can push the rack to move.
Further, the bottom die unit is provided with a bottom plate, the second model positioning groove is formed in the center of the bottom plate, and the second model positioning groove and the first model positioning groove are arranged in the corresponding positions.
Furthermore, the bottom plate is provided with a plastic material flowing groove, and the plastic material flowing groove and the inner end of the glue injection channel are correspondingly arranged.
Furthermore, the plastic material flowing groove is provided with an injection point, a diversion groove and a lead-in hole, the injection point is arranged corresponding to the inner end of the glue injection channel, the diversion groove is arranged on each of two sides of the injection point, the lead-in hole is formed in each diversion groove, and the lead-in hole penetrates through the side wall of the second model positioning groove.
The fixed plate comprises a front plate and a positioning block, wherein the front plate is provided with a rotating shaft hole and a ball groove, and the surface of the positioning block is in contact with the surface of the rotating shaft.
Furthermore, the rotating shaft is provided with a rotating groove, the ball groove is correspondingly connected with the rotating groove, and a plurality of balls are arranged between the ball groove and the rotating groove.
Further, the fixed plate has pivot constant head tank, front bezel constant head tank and rack groove, the interlude of pivot surface side is located in the pivot constant head tank, the front bezel is located in the front bezel constant head tank, the rack is located the rack inslot, the rack can rack inslot round trip movement.
Furthermore, the locating plate is provided with a limiting groove, and a locating block is arranged in the limiting groove.
The utility model has the following effective effects: the front mould unit the first model constant head tank with the die block unit pour into in the second model constant head tank the plastic material, front mould spiral lug with die block spiral lug is right the surface formation of plastic material the screw thread, the front mould unit passes through the rotatory mode of spiral axle lets the plastic material breaks away from in the first model constant head tank, the setting of second model constant head tank bottom the thimble promotes the plastic material breaks away from in the second model constant head tank. The utility model solves the problems that the traditional plastic material surface molding thread groove is broken by a mold when the mold is opened and is not easy to demold.
Drawings
Figure 1 is a schematic view of the overall closed state structure of the present invention,
FIG. 2 is a structural view showing the overall unfolded state of the present invention,
FIG. 3 is a schematic structural view of the bottom mold unit of the present invention,
FIG. 4 is a cross-sectional view showing the internal structure of the front mold unit according to the present invention,
FIG. 5 is a schematic sectional view of the fixing plate, the rotary shaft, the gear, the rack and the cylinder of the front mold unit of the present invention,
FIG. 6 is a schematic view of the front plate, the rotating shaft, the gear, the rack and the positioning block of the present invention,
FIG. 7 is a schematic view of the structure of the rotating shaft and the gear of the present invention;
FIG. 8 is a schematic structural diagram of the plastic material of the present invention.
Detailed Description
As shown in fig. 1 to 8, an injection mold capable of forming a bidirectional T-shaped thread on a plastic cylinder includes a front mold unit 100 and a bottom mold unit 200, and the front mold unit 100 and the bottom mold unit 200 can be opened or closed.
The center of the front mold unit 100 is provided with a glue injection channel 10, the glue injection channel 10 penetrates through the front mold unit 100, and the glue injection channel 100 injects a plastic material 20 to the inner sides of the front mold unit 100 and the bottom mold unit 200.
The surface of the plastic material 20 is provided with a plurality of thread grooves 21.
The front mold unit 100 includes a positioning plate 110, a fixing plate 120 and a cylinder 130, wherein a side end of the positioning plate 110 is connected to a side end 120 of the fixing plate, and the cylinder 130 is disposed on both sides of the fixing plate 120.
The fixing plate 120 includes a rack 121, a gear 122 and a rotating shaft 123, an outer side of one side end of the rotating shaft 123 is sleeved on an inner side of the gear 122, and an outer side of the gear 122 is engaged with the rack 122.
The rotating shaft 123 has a front mold spiral protrusion 112, a first mold positioning groove 101 and a rotating groove 102, the front mold spiral protrusion 112 is disposed in the first mold positioning groove 1101, and the plastic material 20 is shaped in the first mold positioning groove 101 when in use.
The gear 122 has a rotation shaft groove connected to an outer side of one end of the rotation shaft 123, and a first tooth 103.
The surface of the rack 121 is provided with a second tooth 104 and a cylinder contact end 111, the second tooth 104 is engaged with the first tooth 103, the cylinder contact end 111 is connected with the cylinder 130, and the cylinder 130 can push the rack 121 to move.
The fixing plate 120 further includes a front plate 125 and a positioning block 124, wherein the front plate 125 has a rotation shaft hole and a ball groove 105, the other side end of the rotation shaft 123 is disposed corresponding to the rotation shaft, the ball groove 105 is disposed corresponding to the rotation groove 102, a plurality of balls 106 are disposed between the ball groove 105 and the rotation groove 102, and one end surface of the rotation shaft 123 contacts with the surface of the positioning block 124.
The fixed plate 120 has a rotating shaft positioning groove 107, a front plate positioning groove and a rack groove 108, the middle section of the surface side end of the rotating shaft 123 is arranged in the rotating shaft positioning groove 107, the front plate 125 is arranged in the front plate positioning groove, the rack 121 is arranged in the rack groove 108, and the rack 121 can move back and forth in the rack groove 108.
The positioning plate 110 has a limiting groove, and the positioning block 124 is disposed in the limiting groove.
The rotating shaft 123, the front plate 125, the rack 121, the gear 122, and the positioning block 124 are all provided in two numbers, so that the corresponding rotating shaft groove 107, the front plate positioning groove, the rack groove 108, and the limiting groove are all provided in two numbers.
In specific implementation, an outer side of one side end of the rotating shaft 123 is sleeved in the gear 122, and the rotating shaft 123 rotates to engage with the second teeth 104 through the first teeth 103, so as to push the rack 121 to move in the rack slot 108.
Bottom die unit 200 includes thimble 240, second model constant head tank 210 and bottom plate 220, thimble 240 locates in the second model constant head tank 210, second model constant head tank 210 locates the central authorities of bottom plate 220, second model constant head tank 210 with first model constant head tank 101 corresponds the position setting.
A bottom die spiral protrusion 211 is disposed in the second mold positioning groove 210, and the thimble 240 is disposed at one end of the middle of the second mold positioning groove 210.
In a specific implementation, the plastic material 20 is injected into the second mold positioning groove 210, one end of the plastic material 20 contacts one end of the ejector pin 240, and the ejector pin 240 can push the plastic material 20 outwards.
In specific implementation, the front mold spiral protrusion 112 and the bottom mold spiral protrusion 211 are arranged as spiral lines
The number of the second pattern positioning grooves 210 and the bottom plate 220 is two.
The bottom plate 220 has a plastic material flowing groove 230, and the plastic material flowing groove 230 is correspondingly arranged at the inner end of the plastic injecting channel 10.
The plastic material groove 230 is provided with an injection point 231, a diversion groove 232 and an introduction hole 233, the injection point 231 and the inner end of the glue injection channel 10 are correspondingly arranged, the diversion groove 232 is arranged on both sides of the injection point 231, the diversion groove 232 is provided with the introduction hole 233, and the introduction hole 233 penetrates through the side wall of the second model positioning groove 210.
In a specific implementation, when the front mold unit 100 and the bottom end unit 200 are closed, the plastic material 20 is injected from the injection channel 10, the plastic material 20 is injected at a high temperature and flows, the plastic material 20 flows from the injection point 231 to the diversion groove 232, the plastic material 20 is guided into the second mold positioning groove 210 by the guide hole 233 formed in the diversion groove 232, and the plastic material 20 in the second mold positioning groove 210 can be extruded into the first mold positioning groove 101.
When in use, the first model positioning groove 101 of the front mold unit 100 and the bottom mold unit 200 are injected into the second model positioning groove 210 with the plastic material 20, the front mold spiral convex block 112 and the bottom mold spiral convex block 211 are right to the surface of the plastic material 20 is formed with the thread 21, the front mold unit 100 passes through the rotating shaft 123 rotating mode allows the plastic material 20 to be separated from the first model positioning groove 101, the thimble 240 arranged at the bottom end of the second model positioning groove 210 pushes the plastic material 20 to be separated from the second model positioning groove 210. The utility model solves the problems that the traditional plastic material surface molding thread groove is broken by a mold when the mold is opened and is not easy to demold.
Claims (9)
1. An injection mold that can form two-way T shape screw thread on plastic cylinder, includes front mould unit (100) and die block unit (200), front mould unit (100) with can expand or close between die block unit (200), the central authorities of front mould unit (100) have and penetrate gluey passageway (10), it runs through to penetrate gluey passageway (10) front mould unit (100), its characterized in that:
the front mould unit (100) is provided with a fixed plate (120), the fixed plate (120) comprises a rotating shaft (123) and a front plate (125), the rotating shaft (123) is provided with a first mould positioning groove (101), a front mould spiral lug (112) is arranged in the first mould positioning groove (101),
the bottom die unit (200) is provided with a second model positioning groove (210), an ejector pin (240) and a bottom die spiral convex block (211) are arranged in the second model positioning groove (210), the ejector pin (240) is arranged at the bottom end of the center of the second model positioning groove (210),
when in work, the plastic materials (20) are injected into the first model positioning grooves (101) and the second model positioning grooves (210),
the plastic material (20) in the first model positioning groove (101) is demoulded by the rotating mode of the rotating shaft (123),
and demolding the plastic material (20) in the second model positioning groove (210) in a mode of ejecting by the ejector pin (240).
2. The injection mold of claim 1, wherein the two-way T-shaped thread is formed on the plastic cylinder by: the front module unit (100) comprises a positioning plate (110) and an air cylinder (130), the side end of the positioning plate (110) is connected with the side end of the fixing plate (120), the air cylinder (130) is arranged on both sides of the fixing plate (120),
the fixing plate (120) comprises a rack (121) and a gear (122), the outer side of one side end of the rotating shaft (123) is sleeved on the inner side of the gear (122), the outer side of the gear (122) is meshed and connected with the rack (121),
the rotating shaft (123) is provided with a first model positioning groove (101),
the gear (122) has a first tooth (103),
the surface of the rack (121) is provided with a second tooth (104) and a cylinder contact end (111), the second tooth (104) is meshed with the first tooth (103), the cylinder contact end (111) is connected with the cylinder (130), and the cylinder (130) can push the rack (121) to move.
3. The injection mold of claim 1, wherein the two-way T-shaped thread is formed on the plastic cylinder by: the bottom die unit (200) is provided with a bottom plate (220), the second model positioning groove (210) is formed in the center of the bottom plate (220), and the second model positioning groove (210) corresponds to the first model positioning groove (101) in position.
4. The injection mold of claim 3, wherein the two-way T-shaped thread is formed on the plastic cylinder by: the bottom plate (220) is provided with a plastic material flowing groove (230), and the plastic material flowing groove (230) is correspondingly arranged at the inner end of the glue injection channel (10).
5. The injection mold of claim 3, wherein the two-way T-shaped thread is formed on the plastic cylinder by: the plastic material flow groove (230) has injection point (231), splitter box (232) and induction hole (233), injection point (231) with penetrate gluey passageway (10) inner and correspond the setting, the both sides of injection point (231) all are equipped with splitter box (232), splitter box (232) all are equipped with induction hole (233), induction hole (233) run through in the lateral wall of second model constant head tank (210).
6. The injection mold of claim 1, wherein the two-way T-shaped thread is formed on the plastic cylinder by: the fixing plate (120) comprises a front plate (125) and a positioning block (124), wherein the front plate (125) is provided with a rotating shaft hole and a ball groove (105), and the surface of the positioning block (124) is in contact with the surface of the rotating shaft (123).
7. The injection mold of claim 6, wherein the two-way T-shaped thread is formed on the plastic cylinder by: the rotating shaft (123) is provided with a rotating groove (102), the ball groove (105) is correspondingly connected with the rotating groove (102), and a plurality of balls (106) are arranged between the ball groove (105) and the rotating groove (102).
8. The injection mold of claim 1, wherein the two-way T-shaped thread is formed on the plastic cylinder by: fixed plate (120) has pivot constant head tank (107), front bezel constant head tank and rack groove (108), the interlude of pivot (123) surface side is located in pivot constant head tank (107), front bezel (125) are located in the front bezel constant head tank, rack (121) are located in rack groove (108), rack (121) can round trip movement in rack groove (108).
9. The injection mold of claim 2, wherein the two-way T-shaped thread is formed on the plastic cylinder by: the positioning plate (110) is provided with a limiting groove, and a positioning block (124) is arranged in the limiting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121587217.9U CN216230470U (en) | 2021-07-13 | 2021-07-13 | Injection mold capable of forming bidirectional T-shaped threads on plastic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121587217.9U CN216230470U (en) | 2021-07-13 | 2021-07-13 | Injection mold capable of forming bidirectional T-shaped threads on plastic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216230470U true CN216230470U (en) | 2022-04-08 |
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ID=80980893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121587217.9U Active CN216230470U (en) | 2021-07-13 | 2021-07-13 | Injection mold capable of forming bidirectional T-shaped threads on plastic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216230470U (en) |
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2021
- 2021-07-13 CN CN202121587217.9U patent/CN216230470U/en active Active
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