CN215040186U - Sensing type stretching rod structure applied to bidirectional stretching hollow blow molding mold - Google Patents
Sensing type stretching rod structure applied to bidirectional stretching hollow blow molding mold Download PDFInfo
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- CN215040186U CN215040186U CN202120767744.1U CN202120767744U CN215040186U CN 215040186 U CN215040186 U CN 215040186U CN 202120767744 U CN202120767744 U CN 202120767744U CN 215040186 U CN215040186 U CN 215040186U
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Abstract
The sensing type stretching rod structure applied to the bidirectional stretching hollow blow molding mold comprises a front mold and a rear mold which are encircled to form a mold cavity, a bottom mold located at the bottom of the mold cavity, a bottom mold plate used for installing the bottom mold and a stretching rod stretching into the mold cavity from the top of the mold cavity, wherein a bearing mechanism is arranged in the mold cavity and comprises a bottom rod and a lower driving mechanism driving the bottom rod to stretch into the middle of the mold cavity, an air pressure sensor used for detecting the air pressure of a bottle blowing bottle is arranged on the stretching rod, and the air pressure sensor is electrically connected with a controller used for transmitting a detection signal of the air pressure sensor to a bottle blowing machine. The utility model discloses be equipped with baroceptor and controller, can real-time supervision bottle blowing atmospheric pressure to can monitor whole bottle blowing process better, convenient in time discovery problem, the regulation and control of the bottle blowing atmospheric pressure of being convenient for, with the stability of guaranteeing the bottle blowing quality.
Description
Technical Field
The utility model relates to a fashioned technical field of blowing container, concretely relates to be applied to the tensile pole structure of sensing formula on biaxial stretching cavity blow molding mould.
Background
In the existing blow molding container forming process, particularly in the blow molding method of an injection-stretch-blow two-step method, the axial stretching of a bottle blank is basically realized by contacting the inner bottom of the bottle blank with a stretching rod (round steel rod) to stretch the bottle blank to the bottom of a mold cavity at one time. And injecting compressed air in the stretching process of the stretching rod, blowing the bottle blank by means of the compressed air to enable the bottle blank to be tightly attached to the cavity wall of the mold, and cooling and shaping to obtain the hollow plastic product. When the bottle blank is stretched to be in contact with metal at the bottom of the mold cavity, the bottom of the bottle blank is cooled relatively quickly, and the material with limited stretching space is difficult to fully stretch, so that material accumulation is formed at the bottom of the container, material waste is caused, stress concentration is generated, the bottom of the container is easy to crack, and the bottle blank is particularly serious on a large-capacity container (more than 5L). In addition, when the vertical stretching dimension of the bottle preform is large, the stretching rod is prone to have unstable rate, insufficient rigidity and eccentricity at the bottom of the bottle preform, so that the wall thickness of the blow-molded container is not uniform, and the overall strength of the container is affected.
Therefore, the company invents an axial bidirectional positioning stretching hollow blow molding method, and the specific technical scheme can refer to the Chinese patent with the patent application number of 201811527312.2, and the technical scheme basically solves the technical problems. But in the use discovery, because do not have real-time supervision bottle blowing atmospheric pressure during the bottle blowing is tensile, so be not convenient for the regulation and control of bottle blowing atmospheric pressure, influence the bottle blowing quality easily when the bottle blowing atmospheric pressure is too low or too high, so need improve.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides a be applied to the tensile pole structure of sensing formula on the biaxial stretching cavity blow molding mould.
The utility model provides a technical scheme that its technical problem adopted is:
be applied to tensile pole structure of sensing formula on biaxial stretching cavity blow molding mould, including surround into preceding mould and the back mould of die cavity, be located the die cavity bottom, be used for installing the die block board of die cavity and stretch into the tensile pole of die cavity from the die cavity top, be equipped with bearing mechanism in the die cavity, bearing mechanism includes that end rod and drive end rod stretch into the lower actuating mechanism at die cavity middle part, its characterized in that: the stretching rod is provided with an air pressure sensor for detecting the air pressure of the bottle blowing machine, and the air pressure sensor is electrically connected with a controller for transmitting a detection signal to the bottle blowing machine.
The utility model discloses in, be equipped with the gas channel who extends along tensile pole axis direction in the tensile pole, the one end of tensile pole is equipped with intercommunication gas channel's inlet port, the other end of tensile pole is equipped with intercommunication gas channel's venthole, baroceptor's sense terminal and venthole intercommunication.
The utility model discloses in, tensile pole is connected with the electric putter that drives it and stretch into the die cavity, electric putter installs on a mounting bracket that is used for being connected with the bottle blowing machine, electric putter by controller connection control.
The utility model discloses in, tensile pole includes the tensile pole main part of being connected with electric putter and locates the tensile head of tensile pole main part bottom, through threaded connection between tensile pole main part and the tensile head.
The utility model discloses in, first screw hole has been seted up to the bottom of tensile pole main part, the first screw thread portion that is used for connecting tensile pole main part is offered to the tip of tensile head, first screw thread portion screw in to first screw hole.
The utility model discloses in, the sill bar includes the sill bar main part of being connected with lower actuating mechanism and locates the bearing head on sill bar main part top, through threaded connection between bearing head and the sill bar main part.
The utility model discloses in, the top of sill bar main part is equipped with second screw thread portion, the second screw hole that is used for connecting the sill bar main part is offered to the bottom of bearing head, second screw thread portion screw in to the second screw hole.
The utility model discloses in, be equipped with the through-hole on the die block, the die cavity is worn into in the sill bar follow through-hole, actuating mechanism installs the outside at the die block down.
The utility model discloses in, actuating mechanism is second electric putter down.
The utility model has the advantages that: the utility model discloses be equipped with baroceptor and controller, can real-time supervision bottle blowing atmospheric pressure to can monitor whole bottle blowing process better, convenient in time discovery problem, the regulation and control of the bottle blowing atmospheric pressure of being convenient for, with the stability of guaranteeing the bottle blowing quality. And the utility model discloses still be equipped with electric putter and drive tensile pole and carry out tensile work, this electric putter has removed the trouble of arranging the pipeline from by motor direct drive, and electric putter has advantages such as the precision is high, self-locking performance is good moreover, can effectively improve the stability of tensile pole during operation, guarantees the bottle blowing quality.
Drawings
The invention will be further explained with reference to the drawings and the embodiments below:
FIG. 1 is a schematic structural diagram of the present embodiment;
FIG. 2 is an exploded view of the base rod body and the support head;
fig. 3 is a combination schematic view of the bottom rod main body and the supporting head.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention.
Referring to fig. 1-3, be applied to tensile pole structure of sensing formula on biaxial stretching cavity blow molding mould, including enclosing into preceding mould 1 and the back mould of die cavity, be located die cavity bottom 2, be used for installing die cavity 2's die block board 3 and stretch into the tensile pole 4 of die cavity from the die cavity top, be equipped with bearing mechanism in the die cavity, bearing mechanism includes that bottom rod 5 and drive bottom rod 5 stretch into the lower actuating mechanism 6 in die cavity middle part. Further, an air pressure sensor 10 for detecting the air pressure of the bottle blowing machine is arranged on the stretching rod 4, and the air pressure sensor 10 is electrically connected with a controller for transmitting a detection signal to the bottle blowing machine. When bottle blowing work is carried out, the air pressure sensor 10 detects the bottle blowing air pressure in the bottle blowing process in real time and feeds the air pressure back to the control system of the bottle blowing machine through the controller, and the control system of the bottle blowing machine automatically drives the air supply device to increase or decrease the bottle blowing air pressure. Certainly, the air supply device is not limited to the above structure, and the air supply device may also be controlled by the controller, and after the controller transmits the detection result of the air pressure sensor 10 to the control system of the bottle blowing machine, the controller automatically drives the air supply device to increase or decrease the bottle blowing air pressure, so as to ensure the bottle blowing quality.
In this embodiment, in order to achieve the purpose of detecting the air pressure of the blown bottle and prolonging the service life of the air pressure sensor 10, the air pressure sensor 10 is disposed at the upper end of the stretching rod 4, an air channel 1A extending along the central axis direction of the stretching rod 4 is disposed in the stretching rod 4, an air inlet 2A communicating with the air channel 1A is disposed at one end of the stretching rod 4, an air outlet 3A communicating with the air channel 1A is disposed at the other end of the stretching rod 4, and the detection end of the air pressure sensor 10 is communicated with the air outlet 3A. Of course, the present invention is not limited to the above configuration, and in the above configuration, the air pressure sensor 10 may be provided at the lower end of the stretching rod 4, and detect the air pressure of the blown bottle as the stretching rod 4 enters the cavity.
As a preferred embodiment, the stretching rod 4 is connected with an electric push rod 7 for driving the stretching rod to extend into the mold cavity, the electric push rod 7 is mounted on a mounting frame which can be connected with a bottle blowing machine, the electric push rod 7 is electrically connected with a controller for controlling the work of the bottle blowing machine, the controller is electrically connected with a first sensor 8 for facilitating the controller to accurately control the electric push rod 7, the first sensor 8 is mounted on the electric push rod 7, and the controller and the mounting frame are not shown in the attached drawings. The electric push rod is directly driven by the motor, the trouble of pipeline arrangement is avoided, and the electric push rod has the advantages of high precision, good self-locking performance and the like, so that the stability of the stretching rod during operation can be effectively improved, and the bottle blowing quality is ensured.
In this embodiment, the first sensor 8 is an encoder installed on the electric push rod 7, and the encoder accurately feeds back the number of rotation turns of a motor spindle of the electric push rod 7 through the number of pulses, so that the stroke change of the electric push rod 7 is accurately calculated, and accurate control is realized to ensure the working accuracy of the stretching rod 4; in addition, the first sensor 8 may be some other detection module capable of achieving the same purpose, and is not limited to an encoder. When the bottle blowing machine is used, the controller can be connected with a control system of the bottle blowing machine, so that a control signal which is sent by the bottle blowing machine control system and used for controlling the action of the stretching rod 4 is obtained, and then the electric push rod 7 is controlled according to the control signal to drive the stretching rod 4 to stretch into the mold cavity.
In a preferred embodiment, the stretching rod 4 comprises a stretching rod body 41 connected with the electric push rod 7 and a stretching head 42 arranged at the bottom end of the stretching rod body 41, the stretching rod body 41 and the stretching head 42 are connected through threads, and the gas channel 1A is arranged on the stretching rod body 41; the stretching heads 42 with different structures can be replaced by threads, and when plastic bottles with the same length and specification and different bottle bottom structures are produced, only the corresponding stretching heads 42 need to be replaced, so that the production cost is greatly reduced, and resources are saved. In the above structure, the bottom end of the stretching rod body 41 is opened with a first threaded hole, the end of the stretching head 42 is opened with a first threaded portion for connecting the stretching rod body 41, and the first threaded portion is screwed into the first threaded hole to form a threaded connection, so as to fix the stretching head 42 on the stretching rod body 41.
Similarly, the bottom rod 5 comprises a bottom rod main body 51 connected with the lower driving mechanism 6 and a bearing head 52 arranged at the top end of the bottom rod main body 51, and the bearing head 52 is in threaded connection with the bottom rod main body 51, so that the purpose of saving resources can be achieved. Further, a second threaded portion is arranged at the top end of the bottom rod main body 51, a second threaded hole used for connecting the bottom rod main body 51 is formed in the bottom of the bearing head 52, and the second threaded portion is screwed into the second threaded hole to form threaded connection, so that the bearing head 52 is fixed on the bottom rod main body 51.
As a preferred embodiment, a plurality of raised ribs are uniformly distributed on the bottom die 2, the plurality of ribs are collected in the middle of the bottom die 2 and form a raised boss shape, a through hole penetrating through the bottom die 2 is formed in the middle of the boss, the bottom rod 5 penetrates into the die cavity from the through hole, the lower driving mechanism 6 is installed on the outer side of the bottom die 2, and the bottom rod 5 and the stretching rod 4 are on the same axis.
In this embodiment, the lower driving mechanism 6 may be a pneumatic cylinder, a hydraulic cylinder, a second electric push rod or a motor, in this embodiment, the lower driving mechanism 6 is a second electric push rod provided with a second encoder, so as to achieve the purpose of accurately controlling the movement of the bottom rod 5, and the second electric push rod may be controlled by a control system of the bottle blowing machine, or may be electrically connected and controlled by a controller, which may be specifically set according to the actual situation. In addition, lower actuating mechanism 6 is connected with die block 2 through many connecting rods 9, and connecting rod 9 passes the vacancy of die block board 3 and is connected with lower actuating mechanism 6, and many connecting rods 9 enclose into hollow lower actuating mechanism installing support, separates actuating mechanism 6 and die block 2 down through lower actuating mechanism installing support, both made things convenient for actuating mechanism 6's installation down, also avoided producing the influence each other, increase of service life.
The above description is only the preferred embodiment of the present invention, and the technical solutions of the objects of the present invention are all within the protection scope of the present invention as long as the objects are achieved by the substantially same means.
Claims (9)
1. Be applied to tensile pole structure of sensing formula on biaxial stretching cavity blow molding mould, including surround into preceding mould and the back mould of die cavity, be located the die cavity bottom, be used for installing the die block board of die cavity and stretch into the tensile pole of die cavity from the die cavity top, be equipped with bearing mechanism in the die cavity, bearing mechanism includes that end rod and drive end rod stretch into the lower actuating mechanism at die cavity middle part, its characterized in that: the stretching rod is provided with an air pressure sensor for detecting the air pressure of the bottle blowing machine, and the air pressure sensor is electrically connected with a controller for transmitting a detection signal to the bottle blowing machine.
2. The sensing stretch rod structure applied to a biaxially oriented hollow blow molding mold according to claim 1, wherein: the stretching rod is internally provided with a gas channel extending along the central axis direction of the stretching rod, one end of the stretching rod is provided with a gas inlet communicated with the gas channel, the other end of the stretching rod is provided with a gas outlet communicated with the gas channel, and the detection end of the gas pressure sensor is communicated with the gas outlet.
3. The sensing stretch rod structure applied to a biaxially oriented hollow blow molding mold according to claim 1, wherein: the stretching rod is connected with an electric push rod for driving the stretching rod to stretch into the die cavity, the electric push rod is arranged on a mounting rack for being connected with a bottle blowing machine, and the electric push rod is connected and controlled by the controller.
4. The sensing stretch rod structure applied to a biaxially oriented hollow blow molding mold according to claim 1, wherein: the stretching rod comprises a stretching rod main body connected with the electric push rod and a stretching head arranged at the bottom end of the stretching rod main body, and the stretching rod main body is connected with the stretching head through threads.
5. The sensing stretch rod structure applied to a biaxially oriented hollow blow molding mold according to claim 4, wherein: the bottom end of the stretching rod main body is provided with a first threaded hole, the end part of the stretching head is provided with a first threaded part used for being connected with the stretching rod main body, and the first threaded part is screwed into the first threaded hole.
6. The sensing stretch rod structure applied to a biaxially oriented hollow blow molding mold according to claim 1, wherein: the bottom rod comprises a bottom rod main body connected with the lower driving mechanism and a bearing head arranged on the top end of the bottom rod main body, and the bearing head is connected with the bottom rod main body through threads.
7. The sensing stretch rod structure applied to a biaxially oriented hollow blow molding mold according to claim 6, wherein: the top end of the bottom rod main body is provided with a second threaded portion, the bottom of the bearing head is provided with a second threaded hole used for being connected with the bottom rod main body, and the second threaded portion is screwed into the second threaded hole.
8. The sensing stretch rod structure applied to a biaxially oriented hollow blow molding mold according to claim 1, wherein: the bottom die is provided with a through hole, the bottom rod penetrates into the die cavity from the through hole, and the lower driving mechanism is installed on the outer side of the bottom die.
9. The sensing stretch rod structure applied to a biaxially oriented hollow blow molding mold according to claim 6, wherein: the lower driving mechanism is a second electric push rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120767744.1U CN215040186U (en) | 2021-04-14 | 2021-04-14 | Sensing type stretching rod structure applied to bidirectional stretching hollow blow molding mold |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120767744.1U CN215040186U (en) | 2021-04-14 | 2021-04-14 | Sensing type stretching rod structure applied to bidirectional stretching hollow blow molding mold |
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| CN215040186U true CN215040186U (en) | 2021-12-07 |
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| CN202120767744.1U Active CN215040186U (en) | 2021-04-14 | 2021-04-14 | Sensing type stretching rod structure applied to bidirectional stretching hollow blow molding mold |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117464963A (en) * | 2023-12-26 | 2024-01-30 | 佛山市三水飞马包装有限公司 | Bottle blowing machine bottle blowing gas discharge device and discharge control method thereof |
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2021
- 2021-04-14 CN CN202120767744.1U patent/CN215040186U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117464963A (en) * | 2023-12-26 | 2024-01-30 | 佛山市三水飞马包装有限公司 | Bottle blowing machine bottle blowing gas discharge device and discharge control method thereof |
| CN117464963B (en) * | 2023-12-26 | 2024-03-22 | 佛山市三水飞马包装有限公司 | Bottle blowing machine bottle blowing gas discharge device and discharge control method thereof |
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