CN213618294U - Blow mold for double-screw film blowing machine - Google Patents
Blow mold for double-screw film blowing machine Download PDFInfo
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- CN213618294U CN213618294U CN202022051081.1U CN202022051081U CN213618294U CN 213618294 U CN213618294 U CN 213618294U CN 202022051081 U CN202022051081 U CN 202022051081U CN 213618294 U CN213618294 U CN 213618294U
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Abstract
A blow mold for a double-screw film blowing machine. Relates to the technical field of blow molding dies. Including left module and right module, the right side of left side module and the left side of right module all are equipped with the cavity, and are a pair of the cavity surrounds and forms the die cavity, all be equipped with the cooling water passageway in left side module and the right module, the cooling water passageway is laid to the low level of mould by the high position of mould, the internal diameter of cooling water passageway from top to bottom crescent, distance between cooling water passageway and the cavity inner wall from top to bottom reduces gradually. The utility model discloses have structure exquisiteness on the whole, can be quick, evenly cool down's characteristics.
Description
Technical Field
The utility model relates to a blowing mold technical field, concretely relates to double screw blowing machine blowing mold.
Background
Blow molding, also known as blow molding, is a rapidly developing plastic processing method, the blow molding process is used for producing low-density polyethylene vials during world war II, in the late 50 s, with the birth of high-density polyethylene and the development of blow molding machines, the blow molding technology is widely used, the volume of hollow containers can reach thousands of liters, some production adopts computer control, the plastics suitable for blow molding comprise polyethylene, polyvinyl chloride, polypropylene, polyester and the like, the obtained hollow containers are widely used as industrial packaging containers, blow molding can be classified into extrusion blow molding and injection blow molding according to the parison production method, and newly developed are multilayer blow molding and stretch blow molding, in which a blow mold is used, however, when the existing blow mold is opened and a product is taken out, the temperature of the mold is reduced slowly and the temperature reduction uniformity is poor, so that the production efficiency and the quality of a blow-molded part are influenced.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides a blowing mould for a double-screw film blowing machine, which has an exquisite structure and can be cooled quickly and uniformly.
The utility model discloses a following technical scheme realizes: the utility model provides a double screw blowing machine blowing mold, includes left module and right module, the right side of left side module and the left side of right module all are equipped with the cavity, and are a pair of the cavity surrounds and forms the die cavity, all be equipped with the cooling water passageway in left side module and the right module, the cooling water passageway is laid to the low level of mould by the high position of mould, the internal diameter of cooling water passageway from top to bottom crescent, distance between cooling water passageway and the cavity inner wall from top to bottom reduces gradually.
The blow mold further comprises a mold positioning and guiding device, the positioning and guiding device comprises an installation block, a guiding rod and a guiding block, the installation block is arranged at the top of the right module, the guiding block is arranged at the top of the left module, a through hole in the horizontal direction is formed in the middle of the guiding block, and one end of the guiding rod is fixedly connected with the installation block, and the other end of the guiding rod penetrates through the through hole to form the guiding block.
The other end of the guide rod is also provided with a baffle plate, a spring is arranged between the baffle plate and the guide block, and the spring is sleeved on the guide rod.
Compared with the prior art, the utility model injects cooling water into the cooling water channel during the work, and realizes the cooling of the inner wall of the cavity through the cooling effect of the cooling water, thereby promoting the rapid demoulding of the product; furthermore, the uniformity of the cooling effect of the cooling water on the cavity is improved and the demolding efficiency is improved by gradually increasing the inner diameter of the cooling water channel and gradually reducing the distance between the cooling water channel and the cavity.
Drawings
FIG. 1 is a schematic structural view of the present invention;
in the figure: 1. a left module; 2. a right module; 3. a cavity; 4. a cooling water passage; 5. mounting blocks; 6. a guide rod; 7. a guide block; 8. perforating; 9. a baffle plate; 10. a spring.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.
As shown in fig. 1, a double screw blowing machine blowing mould, including left module 1 and right module 2, the right side of left side module 1 and the left side of right module 2 all are equipped with cavity 3, and are a pair of cavity 3 surrounds and forms the die cavity, all be equipped with cooling water channel 4 in left side module 1 and the right module 2, cooling water channel 4 is laid to the low level of mould by the high position of mould, and is concrete, and left side upper portion of left module 1 and the right side upper portion of right module 2 all are equipped with the water inlet of cooling water channel 4, and the bottom of left module 1 and the bottom of right module 2 all are equipped with the delivery port of cooling water channel 4, and cooling water gets into by the water inlet, discharges by the delivery port, the internal diameter of cooling water channel 4 from top to bottom increases gradually, the distance between cooling water channel 4 and the 3 inner walls of cavity from top to bottom reduces gradually. After the blow molding is finished and when the demolding is needed, cooling water with lower temperature is pumped in from the water inlet and then discharged from the water outlet, and the left module 1 and the right module 2 can be cooled in the process that the cooling water flows in the cooling water channel 4, so that the rapid demolding is facilitated; the inner diameter of the cooling water channel 4 is gradually increased from top to bottom, so that the flow speed of the cooling water is gradually reduced under the same pressure, and the retention time of the cooling water in the cooling water channel 4 is gradually increased from top to bottom, so that the cooling water can more uniformly cool the cavity 3, the structure is exquisite, the water temperature at the water inlet is prevented from being low, the water temperature at the water outlet is prevented from being high, and the uneven cooling and heat dissipation of the lower part of the cavity 3 are prevented; further, the distance between cooling water channel 4 and 3 inner walls of cavity from top to bottom reduces gradually, that is to say, the cooling water from top to bottom more presses close to cavity 3, and like this, the cooling effect of cooling water to cavity 3 is more direct, has improved the cooling effect, and under the condition that the temperature risees gradually toward the delivery port direction from the water inlet direction, improves the cooling effect, has just also ensured even, quick to the holistic cooling of cavity 3.
Blow mold still includes mould location guiding device, location guiding device is including installation piece 5, guide bar 6 and guide block 7, the top of right module 2 is located to installation piece 5, the top of left module 1 is located to guide block 7, the middle part of guide block 7 is equipped with the perforation 8 of horizontal direction, the one end and the installation piece 5 fixed connection of guide bar 6, the other end pass through perforation 8 guide block 7. When the left module 1 and the right module 2 are enclosed or opened, the guide rod 6 slides in the through hole 8, so that the left module 1 and the right module 2 are kept to do linear motion in the horizontal direction and the reverse direction under the matching of the guide block 7 and the guide rod 6; furthermore, the driving direction of the driving source to the left module 1 and the right module 2 can be directly observed by observing whether the guide rod 6 is bent or not and the bending degree, so that the driving source can be conveniently adjusted in time; furthermore, a positioning guide can be provided on the bottom of the blow mould, so that the two positioning guides are symmetrical.
The other end of the guide rod 6 is also provided with a baffle plate 9, a spring 10 is arranged between the baffle plate 9 and the guide block 7, and the guide rod 6 is sleeved with the spring 10. Set up baffle 9, realize spacing to guide bar 6, prevent that guide bar 6 from breaking away from guide block 7, simultaneously, under spring 10's effect, realize the buffering, prevent that baffle 9 from directly striking guide block 7, cause baffle 9 or guide block 7's damage.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.
Claims (3)
1. The utility model provides a double screw blowing machine blowing mould, includes left module and right module, the right side of left side module and the left side of right module all are equipped with the cavity, and is a pair of the cavity surrounds formation die cavity, its characterized in that: all be equipped with the cooling water passageway in left side module and the right module, the cooling water passageway is laid by the high-order of mould to the low level of mould, the internal diameter of cooling water passageway from top to bottom crescent gradually, distance between cooling water passageway and the cavity inner wall from top to bottom reduces gradually.
2. The blow mold for the twin-screw film blowing machine according to claim 1, characterized in that: the blow mold further comprises a mold positioning and guiding device, the positioning and guiding device comprises an installation block, a guiding rod and a guiding block, the installation block is arranged at the top of the right module, the guiding block is arranged at the top of the left module, a through hole in the horizontal direction is formed in the middle of the guiding block, and one end of the guiding rod is fixedly connected with the installation block, and the other end of the guiding rod penetrates through the through hole to form the guiding block.
3. The blow mold for the twin-screw film blowing machine according to claim 2, characterized in that: the other end of the guide rod is also provided with a baffle plate, a spring is arranged between the baffle plate and the guide block, and the spring is sleeved on the guide rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022051081.1U CN213618294U (en) | 2020-09-17 | 2020-09-17 | Blow mold for double-screw film blowing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022051081.1U CN213618294U (en) | 2020-09-17 | 2020-09-17 | Blow mold for double-screw film blowing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213618294U true CN213618294U (en) | 2021-07-06 |
Family
ID=76649947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022051081.1U Active CN213618294U (en) | 2020-09-17 | 2020-09-17 | Blow mold for double-screw film blowing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213618294U (en) |
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2020
- 2020-09-17 CN CN202022051081.1U patent/CN213618294U/en active Active
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