CN215472919U - Detection apparatus for fuse-element pressure and temperature suitable for injection moulding device - Google Patents
Detection apparatus for fuse-element pressure and temperature suitable for injection moulding device Download PDFInfo
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- CN215472919U CN215472919U CN202120717290.7U CN202120717290U CN215472919U CN 215472919 U CN215472919 U CN 215472919U CN 202120717290 U CN202120717290 U CN 202120717290U CN 215472919 U CN215472919 U CN 215472919U
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Abstract
The utility model discloses a device for detecting the pressure and the temperature of a melt suitable for injection molding equipment, which comprises a charging barrel and a nozzle, wherein the nozzle is fixed at the front end of the charging barrel; the pressure measuring device comprises a pressure sensor, the temperature measuring device comprises a temperature sensor, one end of the pressure sensor and one end of the temperature sensor are both arranged inside the front end of the detection material cylinder, and the other end of the pressure sensor and the other end of the temperature sensor are arranged outside the material cylinder. The detection device can visually know the change condition of the melt in the charging barrel in the injection molding process, improve the production efficiency and reduce the rejection rate.
Description
Technical Field
The utility model relates to a melt pressure and temperature detection device suitable for injection molding equipment, and belongs to the technical field of injection molding equipment.
Background
As shown in fig. 1, the conventional injection molding apparatus is constructed such that a nozzle 1 is installed at a heated front end of a barrel 2 of a plasticizing unit. During the injection molding process, the plasticized polymer melt is stored in the region of the front end of the barrel 2, which is referred to as the stock zone. During injection, the melt pressure in the material storage area is an important parameter of injection molding, and influences the stability of the mold filling speed. The nozzle 1 is generally provided with some thermocouples and heating rings, but the temperature is measured by the temperature of the nozzle and not by the temperature of the solution.
The disadvantages of this design are as follows:
1. the temperature of the charging basket and the real temperature of the solution have certain deviation.
2. The assumption that the pressure of the injected molten material is uniform is adopted, and the process parameters are determined and adjusted mainly by the experience of engineers, so that reliable scientific basis is lacked.
3. Is not beneficial to the research and processing of precision parts.
Disclosure of Invention
The technical problem to be solved by the utility model is as follows: how to accurately measure the temperature and pressure of the melt at the front end of the cylinder.
In order to solve the technical problems, the technical scheme of the utility model is to provide a melt pressure and temperature detection device suitable for injection molding equipment, which comprises a material barrel and a nozzle, wherein the nozzle is fixed at the front end of the material barrel; the pressure measuring device comprises a pressure sensor, the temperature measuring device comprises a temperature sensor, one end of the pressure sensor and one end of the temperature sensor are both arranged inside the front end of the detection material cylinder, and the other end of the pressure sensor and the other end of the temperature sensor are arranged outside the material cylinder.
Preferably, the outer side of the pressure measuring device and the temperature measuring device is sleeved with a protective piece for preventing the pressure measuring device and the temperature measuring device from being damaged in the production process.
Preferably, the protection piece is made of sheet metal materials.
Preferably, the injection device is a plastic injection machine or a rubber injection machine.
Preferably, the charging barrel is connected with the nozzle through a connecting sleeve, the connecting sleeve is of a hollow sleeve structure, and one end of each of the pressure sensor and the temperature sensor penetrates through the outer side wall of the connecting sleeve and is arranged in the central hole of the connecting sleeve.
Preferably, one end of the pressure sensor and one end of the temperature sensor, which are located in the connecting sleeve, are respectively provided with a pressure probe and a temperature probe, and the pressure probe and the temperature probe are both fixed on the connecting sleeve along a direction perpendicular to the flow direction of the solution.
The detection device can visually know the change condition of the melt in the charging barrel in the injection molding process, improve the production efficiency and reduce the rejection rate. The melt pressure and temperature are the comprehensive reflection of the injection molding process parameters and the processing environment, and are closely related to the molding quality of plastic products.
Compared with the prior art, the utility model has the following advantages:
1. the method can effectively detect and control some key variables in the injection process and optimize the process parameters on the basis of the key variables.
2. The defective rate is reduced.
3. And optimizing the molding period.
4. And the time for testing the mold and the machine is shortened.
5. And protecting the mold.
6. Saving labor cost.
Drawings
FIG. 1 is a schematic view of a prior art nozzle mounted to the heated front end of a barrel of a plasticizing unit;
FIG. 2 is a schematic diagram of a melt pressure and temperature detecting device for an injection molding apparatus;
FIG. 3 is a perspective view of a melt pressure and temperature sensing device suitable for use in an injection molding apparatus.
Detailed Description
In order to make the utility model more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings.
The utility model provides a device for detecting melt pressure and temperature suitable for injection molding equipment, which comprises a nozzle 1, a charging barrel 2 of a plasticizing unit, a pressure measuring device 3, a temperature measuring device 4 and a protecting piece 5, wherein the heating front end of the charging barrel 2 is fixedly provided with the nozzle 1, and the charging barrel 2 is connected with the nozzle 1 through a connecting sleeve 9, as shown in figures 2 and 3. The pressure measuring device 3 and the temperature measuring device 4 of the solution are positioned at the injection unit part in front of the filter screen, and the installation position is selected at the transition section (namely the connecting sleeve 9). The pressure measuring device 3 and the temperature measuring device 4 are used for detecting the temperature of the solution in the front end of the charging barrel 2; pressure measuring device 3 includes pressure sensor 7, and temperature measuring device 4 includes temperature sensor 8, and inside pressure sensor 7 and temperature sensor 8's one end all located detection feed cylinder 2 front end, the feed cylinder 2 outside was located to pressure sensor 7 and temperature sensor 8's the other end. The connecting sleeve 9 is of a hollow sleeve structure, and one end of each of the pressure sensor 7 and the temperature sensor 8 penetrates through the outer side wall of the connecting sleeve 9 and is arranged in the central hole of the connecting sleeve 9. The rear end of the connecting sleeve 9 is provided with a screw head 6 communicated with the connecting sleeve 9, and the screw head 6 is fixed in the charging barrel 2. The other ends of the pressure sensor 7 and the temperature sensor 8 which are arranged outside the charging barrel 2 are connected with a display for displaying the pressure and the temperature of the melt.
The pressure sensor 7 and the temperature sensor 8 are inserted into the molten material, and one ends of the pressure sensor 7 and the temperature sensor 8, which are positioned in the connecting sleeve 9, are respectively provided with a pressure probe and a temperature probe. The pressure sensor 7 and the temperature sensor 8 are installed in a radial mode, namely, the pressure probe and the temperature probe are both fixed on the connecting sleeve 9 along the direction perpendicular to the flow direction of the solution. The mechanical strength of the probe needs to be considered, and the injection speed cannot be too high, otherwise the probe is bent and deformed and even completely sheared off. The melt is in direct contact with the front end face of the sensor, so that the pressure and the temperature can be directly measured, and the measurement accuracy is very high.
Wherein the injection equipment is a plastic injection machine or a rubber injection machine.
The protection member 5 may be made of a metal plate or other material, and is mainly used to prevent the pressure measuring device 3 and the temperature measuring device 4 from being damaged during the production process. The pressure measuring device 3 and the temperature measuring device 4 mainly comprise the following parts: sensor, cable, charge amplifier, data acquisition equipment.
Claims (6)
1. A detection device for melt pressure and temperature suitable for injection molding equipment comprises a charging barrel (2) and a nozzle (1), wherein the nozzle (1) is fixed at the front end of the charging barrel (2), and is characterized in that a pressure measuring device (3) and a temperature measuring device (4) for detecting the temperature of a melt in the front end of the charging barrel (2) are also arranged between the charging barrel (2) and the nozzle (1); pressure measurement device (3) include pressure sensor (7), and temperature measuring device (4) include temperature sensor (8), and inside pressure sensor (7) and the one end of temperature sensor (8) all located detection feed cylinder (2) front end, the feed cylinder (2) outside was located to the other end of pressure sensor (7) and temperature sensor (8).
2. The melt pressure and temperature detecting device for injection molding equipment according to claim 1, wherein the pressure measuring device (3) and the temperature measuring device (4) are externally sleeved with a protecting member (5) for preventing the pressure measuring device (3) and the temperature measuring device (4) from being damaged in the production process.
3. The device for detecting the melt pressure and temperature suitable for the injection molding equipment of claim 2, wherein the protecting member (5) is made of a sheet metal material.
4. The apparatus of claim 1, wherein the injection molding machine is a plastic injection molding machine or a rubber injection molding machine.
5. The device for detecting the melt pressure and the melt temperature suitable for the injection molding equipment according to claim 1, wherein the charging barrel (2) and the nozzle (1) are connected through a connecting sleeve (9), the connecting sleeve (9) is of a hollow sleeve structure, and one end of each of the pressure sensor (7) and the temperature sensor (8) penetrates through the outer side wall of the connecting sleeve (9) and is arranged in the central hole of the connecting sleeve (9).
6. The melt pressure and temperature detection device suitable for the injection molding equipment according to claim 5, wherein the pressure sensor (7) and the temperature sensor (8) are respectively provided with a pressure probe and a temperature probe at one end inside the connecting sleeve (9), and the pressure probe and the temperature probe are both fixed on the connecting sleeve (9) along a direction perpendicular to the flow direction of the melt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120717290.7U CN215472919U (en) | 2021-04-08 | 2021-04-08 | Detection apparatus for fuse-element pressure and temperature suitable for injection moulding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120717290.7U CN215472919U (en) | 2021-04-08 | 2021-04-08 | Detection apparatus for fuse-element pressure and temperature suitable for injection moulding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215472919U true CN215472919U (en) | 2022-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120717290.7U Active CN215472919U (en) | 2021-04-08 | 2021-04-08 | Detection apparatus for fuse-element pressure and temperature suitable for injection moulding device |
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| CN (1) | CN215472919U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115214102A (en) * | 2022-07-20 | 2022-10-21 | 广东烨嘉光电科技股份有限公司 | Real-time monitoring's resin lens is moulded plastics and is used temperature control equipment |
-
2021
- 2021-04-08 CN CN202120717290.7U patent/CN215472919U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115214102A (en) * | 2022-07-20 | 2022-10-21 | 广东烨嘉光电科技股份有限公司 | Real-time monitoring's resin lens is moulded plastics and is used temperature control equipment |
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