CN219213950U - Hot runner of bottle blank mould - Google Patents
Hot runner of bottle blank mould Download PDFInfo
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- CN219213950U CN219213950U CN202223613510.5U CN202223613510U CN219213950U CN 219213950 U CN219213950 U CN 219213950U CN 202223613510 U CN202223613510 U CN 202223613510U CN 219213950 U CN219213950 U CN 219213950U
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- heating
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Abstract
The utility model relates to a hot runner of a bottle blank mold, which comprises a hot runner body and a cooling water connecting seat, wherein the hot runner body comprises a feeding seat and a heating seat, a feeding channel is formed in the feeding seat, an avoidance groove is formed in one end, connected with the heating seat, of the feeding seat, the cooling water connecting seat penetrates through the avoidance groove to be connected with the heating seat, an annular flow channel is formed in the heating seat, a heating ring is sleeved on the periphery of the annular flow channel, and a cooling water channel is formed in the inner side of the annular flow channel; the utility model sets the flow channel into an annular flow channel, the periphery of the annular flow channel is provided with the heating ring, the inner side of the annular flow channel is provided with the cooling structure, the contact area between the annular flow channel and the peripheral heating ring is increased, the temperature of a plastic original piece in the annular flow channel is controlled through the cooperation of the heating ring and the cooling structure, and the temperature of a pouring gate is properly reduced, so that the problem of pouring gate whitening is solved.
Description
Technical Field
The utility model relates to a hot runner technology, in particular to a hot runner of a bottle blank mold.
Background
In order to ensure that the product can be normally and stably molded, a hot runner is usually arranged at an injection port of the plastic molding die, and ensures the fluidity of plastic raw materials and keeps stable temperature; at present, in order to ensure the mobility of PET materials when the PET bottle blank is formed, a hot runner needs to be kept at a higher temperature, but the problem of whitening of the PET bottle blank formed at a higher temperature exists at the position of a pouring gate, so that the position of whitening of the pouring gate at the bottom of the PET bottle blank is more obvious when the PET bottle blank is manufactured into a bottle body; the temperature is reduced to influence the fluidity of the PET material, so that the injection molding pressure is increased, fin edges are easy to generate when the mold locking force of the injection molding machine is insufficient, and the service life of the mold is also influenced.
Disclosure of Invention
The utility model aims to provide a hot runner of a bottle blank mold, which is formed by arranging a runner into an annular runner, arranging a heating ring at the periphery of the annular runner, arranging a cooling structure at the inner side of the annular runner, increasing the contact area between the annular runner and the peripheral heating ring, controlling the temperature of a plastic original in the annular runner through the cooperation of the heating ring and the cooling structure, and properly reducing the temperature at a pouring gate so as to solve the problem of whitening the pouring gate.
The following technical scheme is adopted for realizing the purposes:
a hot runner of a bottle blank mold, characterized in that: the hot runner comprises a hot runner body and a cooling water connecting seat, wherein the hot runner body comprises a feeding seat and a heating seat, a feeding channel is formed in the feeding seat, an avoidance groove is formed in one end, connected with the heating seat, of the feeding seat, the cooling water connecting seat penetrates through the avoidance groove to be connected with the heating seat, an annular flow channel is formed in the heating seat, a heating ring is sleeved on the periphery of the annular flow channel, a cooling water channel is arranged on the inner side of the annular flow channel, and an inlet and an outlet of the cooling water channel are communicated with the water channel in the cooling water connecting seat; one end of the annular flow channel is connected with the feeding channel inside the feeding seat, and the other end of the annular flow channel is communicated with the material injection port at the end part of the heating seat.
The inside feed channel of feed seat is Y type feed channel, and Y type feed channel includes a feed inlet and two discharge gates, and two discharge gates distribute in dodging the groove both sides.
The heating seat comprises a cooling inner core, a middle sleeve and a heating ring, wherein a cavity is formed in the middle sleeve, a feeding channel is formed in one end of the middle sleeve at a position corresponding to two discharge holes, a material injection hole is formed in the other end of the middle sleeve, the feeding channel and the material injection hole are communicated with the cavity, the cooling inner core is accommodated in the cavity, and an annular flow channel is formed between the outer wall of the cooling inner core and the inner wall of the cavity; the heating ring is sleeved on the periphery of the middle sleeve; the heating ring is provided with a through hole corresponding to the material injection hole.
The cooling inner core include cooling shaft and cooling jacket, cooling shaft one end links firmly with the cooling water connecting seat, the inside inlet channel that communicates with the cooling water connecting seat of having seted up of cooling shaft, cooling jacket one end seted up the cooling chamber, cooling shaft holding is in the cooling chamber, leave the clearance between cooling shaft outer wall and the cooling chamber inner wall and form annular return water channel, return water channel and inlet channel intercommunication, return water channel and the inside cooling water channel intercommunication of cooling water connecting seat.
According to the utility model, the feeding channel in the hot runner is arranged as an annular runner with an annular structure, the heating ring is arranged at the periphery of the annular runner, and the cooling mechanism is arranged in the annular runner, so that the contact area between the runner and the peripheral heating ring and the contact area between the runner and the cooling mechanism are increased by adopting the annular runner, the temperature can be conveniently and better controlled, and the temperature rise or the temperature drop can be quickly realized due to the increase of the contact area between the heating ring and the cooling mechanism by adopting the annular runner, so that the plastic raw material for injection is controlled at the required temperature, the accurate temperature control is realized, and the problem of gate whitening caused by overhigh temperature in the existing PET tube blank molding is very conveniently solved; has the characteristics of reasonable structure and rapid temperature adjustment.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of another direction of the present utility model;
FIG. 3 is a schematic diagram of an exploded construction of the present utility model;
FIG. 4 is a schematic view of an exploded view of another aspect of the present utility model;
FIG. 5 is a schematic view of the internal structure of the present utility model;
fig. 6 is a schematic view of the internal structure of the sleeve of the present utility model.
Detailed Description
As shown in fig. 1-6, a hot runner of bottle blank mold comprises a hot runner body 1 and a cooling water connecting seat 2, the hot runner body 1 comprises a feeding seat 11 and a heating seat 12, a feeding channel is arranged in the feeding seat 11, the feeding channel in the feeding seat 11 is a Y-shaped feeding channel, an avoidance groove 13 is arranged at one end, connected with the heating seat 12, of the feeding seat 11, the Y-shaped feeding channel comprises a feeding hole 111 and two discharging holes 112, and the two discharging holes 112 are distributed at two sides of the avoidance groove 13.
The cooling water connecting seat 2 passes through the avoiding groove 13 and is connected with the heating seat 12, an annular flow passage 14 is arranged in the heating seat 12, a heating ring 15 is sleeved on the periphery of the annular flow passage 14, a cooling structure is arranged on the inner side of the annular flow passage 14, and a water channel in the cooling structure is communicated with a water channel in the cooling water connecting seat; one end of the annular flow channel 14 is connected with a feeding channel in the feeding seat 11, and the other end of the annular flow channel 14 is communicated with a material injection port 18 at the end part of the heating seat 12.
The heating seat 12 comprises a cooling inner core 16, a middle sleeve 17 and a heating ring 15, a cavity 171 is arranged in the middle sleeve 17, a feeding channel 172 is arranged at one end of the middle sleeve 17 corresponding to the two discharge holes 112, a material injection port 18 is arranged at the other end of the middle sleeve 17, the feeding channel 172 and the material injection port 18 are communicated with the cavity 171, the cooling inner core 16 is accommodated in the cavity 171, and the annular flow channel 14 is formed between the outer wall of the cooling inner core 16 and the inner wall of the cavity 171; the heating ring 15 is sleeved on the periphery of the middle sleeve 17; the heating ring 15 is provided with a through hole at a position corresponding to the material injection hole 18.
The cooling inner core 16 comprises a cooling shaft 161 and a cooling sleeve 162, one end of the cooling shaft 161 is fixedly connected with the cooling water connecting seat 2, a water inlet channel 165 communicated with the cooling water connecting seat 2 is formed in the cooling shaft 161, a cooling cavity 163 is formed in one end of the cooling sleeve 162, the cooling shaft 161 is accommodated in the cooling cavity 163, a gap is reserved between the outer wall of the cooling shaft 161 and the inner wall of the cooling cavity 163 to form an annular water return channel 164, the water return channel 164 is communicated with the water inlet channel 165, and the water return channel 164 is communicated with the cooling water channel in the cooling water connecting seat 2; the transition cavity 173 between the material injection port 18 and the cavity 171 is provided with a plurality of diversion trenches 174 on the inner wall of the transition cavity, and when the cooling inner core is accommodated in the cavity 171, the end part of the cooling inner core is matched with the transition cavity 173, and the material injection port 18 and the annular flow channel 14 are communicated by the diversion trenches 174.
The utility model aims to solve the problem of gate whitening caused by overhigh gate temperature of the existing PET bottle blank forming die, adopts an annular flow channel for feeding, and adopts the external heating and internal cooling of the annular flow channel to realize the adjustable height of fluid temperature through cold-hot matching, thereby solving the problem that the existing hot flow channel can only be heated in one direction and needs natural cooling, realizing rapid cooling by controlling the speed of water flow in an internal cooling water channel, and being matched with an external heating ring to realize bidirectional temperature control, so that the problem of gate whitening caused by overhigh temperature in the existing PET bottle blank forming is very convenient to solve; has the characteristics of reasonable structure and rapid temperature adjustment.
Claims (5)
1. A hot runner of a bottle blank mold, characterized in that: the cooling water heating device comprises a hot runner body (1) and a cooling water connecting seat (2), wherein the hot runner body (1) comprises a feeding seat (11) and a heating seat (12), a feeding channel is formed in the feeding seat (11), an avoidance groove (13) is formed in one end, connected with the heating seat (12), of the feeding seat (11), the cooling water connecting seat (2) penetrates through the avoidance groove (13) to be connected with the heating seat (12), an annular runner (14) is arranged in the heating seat (12), a heating ring (15) is sleeved on the periphery of the annular runner (14), a cooling structure is arranged on the inner side of the annular runner (14), and a water channel in the cooling structure is communicated with a water channel in the cooling water connecting seat; one end of the annular flow channel (14) is connected with a feeding channel in the feeding seat (11), and the other end of the annular flow channel (14) is communicated with a material injection port (18) at the end part of the heating seat (12).
2. A hot runner for a preform mold as in claim 1 wherein: the feeding channel in the feeding seat (11) is a Y-shaped feeding channel, the Y-shaped feeding channel comprises a feeding hole (111) and two discharging holes (112), and the two discharging holes (112) are distributed on two sides of the avoidance groove (13).
3. A hot runner for a preform mold as in claim 1 wherein: the heating seat (12) comprises a cooling inner core (16), a middle sleeve (17) and a heating ring (15), a cavity (171) is formed in the middle sleeve (17), a feeding channel (172) is formed in one end of the middle sleeve (17) at the position corresponding to the two discharge holes (112), a material injection hole (18) is formed in the other end of the middle sleeve (17), the feeding channel (172) and the material injection hole (18) are communicated with the cavity (171), the cooling inner core (16) is accommodated in the cavity (171), and an annular flow channel (14) is formed between the outer wall of the cooling inner core (16) and the inner wall of the cavity (171); the heating ring (15) is sleeved on the periphery of the middle sleeve (17); the heating ring (15) is provided with a through hole at the position corresponding to the material injection opening (18).
4. A hot runner for a preform mold as in claim 3 wherein: the cooling inner core (16) include cooling shaft (161) and cooling jacket (162), cooling shaft (161) one end links firmly with cooling water connecting seat (2), cooling shaft (161) inside set up inlet channel (165) with cooling water connecting seat (2) intercommunication, cooling jacket (162) one end set up cooling chamber (163), cooling shaft (161) holding is in cooling chamber (163), leave clearance formation annular return channel (164) between cooling shaft (161) outer wall and cooling chamber (163) inner wall, return channel (164) are linked together with inlet channel (165), return channel (164) are linked together with cooling water connecting seat (2) inside cooling water channel.
5. A hot runner for a preform mold as in claim 4 wherein: the cooling inner core is characterized in that a transition cavity (173) between the material injection port (18) and the cavity (171) is provided with a plurality of diversion trenches (174) on the inner wall of the transition cavity, and when the cooling inner core is accommodated in the cavity (171), the end part of the cooling inner core is matched with the transition cavity (173), and the material injection port (18) and the annular flow channel (14) are communicated through the diversion trenches (174).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223613510.5U CN219213950U (en) | 2022-12-31 | 2022-12-31 | Hot runner of bottle blank mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223613510.5U CN219213950U (en) | 2022-12-31 | 2022-12-31 | Hot runner of bottle blank mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219213950U true CN219213950U (en) | 2023-06-20 |
Family
ID=86757690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223613510.5U Active CN219213950U (en) | 2022-12-31 | 2022-12-31 | Hot runner of bottle blank mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219213950U (en) |
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2022
- 2022-12-31 CN CN202223613510.5U patent/CN219213950U/en active Active
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